TWI679465B - Optical imaging lens - Google Patents

Abstract

An optical imaging lens includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order along the optical axis from the object side to the image side. The first lens is the first lens whose refractive index from the object side to the image side is equal to zero mm ^-1 . The second lens is the first lens having a refractive power from the first lens to the number of image sides. The third lens is a second lens having a refractive power from the first lens to the number of image sides. The fourth lens is the first lens having refractive power from the aperture to the number of image sides. The fifth lens is a second lens having refractive power from the aperture to the number of image sides.

Description

Optical imaging lens

The invention relates to an optical element, and in particular to an optical imaging lens.

The specifications of portable electronic products change with each passing day, and its key component, the optical imaging lens, is also becoming more diverse. The application fields of automotive lenses continue to increase, from reversing, 360-degree view, lane shifting systems to advanced driver assistance systems (ADAS), etc., a car uses from 6 to 20 lenses, lens specifications also Continuous improvement, upgrade from VGA (300,000) to more than one million pixels. However, there is still much room for improvement in the imaging quality of automotive lenses and the imaging quality of tens of millions of pixels in mobile phone lenses.

The ambient temperature of automotive lenses is between -20 ° C and 80 ° C. In addition, the lens itself must be able to withstand various harsh environments such as wind, rain, and sun. Therefore, the first lens of the lens should be made of glass material that can withstand environmental testing. In addition, the half-angle of view of the vehicle lens must be large enough to be suitable for various needs such as rear view, reverse and surrounding scenery. Therefore, a glass lens with a large negative refractive power is required, but the manufacturing process and cost of grinding glass are increased. Therefore, how to provide automotive lenses with thermal stability, anti-environmental testing, a large half angle of view, low cost, and conforming to imaging quality is an issue that requires multiple studies.

The invention provides an optical imaging lens, which has good thermal stability, good optical parameters, and good imaging quality.

An embodiment of the present invention provides an optical imaging lens, which includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order along the optical axis from the object side to the image side. Each of the first lens to the fifth lens includes an object side facing the object side and passing imaging light and an image side facing the image side and passing imaging light. The first lens is the first lens whose refractive index from the object side to the image side is equal to zero mm ^-1 . The second lens is the first lens having a refractive power from the first lens to the number of image sides. The third lens is a second lens having a refractive power from the first lens to the number of image sides. The third lens has a positive refractive power. The fourth lens is the first lens having refractive power from the aperture to the number of image sides. At least one of the object side surface and the image side surface of the fourth lens is an aspheric surface. The fifth lens is a second lens having refractive power from the aperture to the number of image sides. Both the object side of the fifth lens and the image side of the fifth lens are aspheric.

An embodiment of the present invention provides an optical imaging lens, which includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order along the optical axis from the object side to the image side. Each of the first lens to the fifth lens includes an object side facing the object side and passing imaging light and an image side facing the image side and passing imaging light. The first lens is the first lens whose refractive index from the object side to the image side is equal to zero mm ^-1 . The second lens is the first lens having a refractive power from the first lens to the number of image sides. The third lens is a second lens having a refractive power from the first lens to the number of image sides. The fourth lens is the first lens having a refractive power from the aperture to the number of image sides. At least one of the object side surface and the image side surface of the fourth lens is an aspheric surface. The fifth lens is a second lens having refractive power from the aperture to the number of image sides. Both the object side of the fifth lens and the image side of the fifth lens are aspheric. The optical imaging lens satisfies the following conditional expression: 1.250 ≦ L2A1R / ImgH ≦ 2.200, where L2A1R is the effective radius of the object side of the second lens, and ImgH is the maximum image height of the optical imaging lens.

Based on the above, in the optical imaging lens of the embodiment of the present invention, by satisfying the arrangement manner between the first to fifth lenses and the aperture, the refractive index of the first lens is equal to zero millimeter ^-1 , and the object side of the fourth lens At least one of the image side surfaces of the fourth lens is an aspheric surface, and the object side surface of the fifth lens and the image side surface of the fifth lens are both aspheric surfaces. Therefore, the optical imaging lens of the embodiment of the present invention can have good thermal stability, good optical parameters, and good imaging quality.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

100, 200, 300, 400, 500‧‧‧ lenses

15, 25, 35, 45, 55, 65, 75, 95, 110, 410, 510‧‧‧

16, 26, 36, 46, 56, 66, 76, 96, 120, 320‧‧‧ like side

130‧‧‧Assembly Department

211, 212‧‧‧ parallel rays

10‧‧‧ Optical Imaging Lens

0‧‧‧ aperture

1‧‧‧first lens

2‧‧‧Second lens

3‧‧‧ third lens

4‧‧‧ fourth lens

5‧‧‧ fifth lens

6‧‧‧ sixth lens

7‧‧‧ seventh lens

9‧‧‧ Filter

99‧‧‧ imaging surface

15p1, 16p1, 151, 162, 251, 262, 35p1, 361, 451, 461, 462, 551, 552, 561, 651, 652, 661, 751, 761

15p2, 16p2, 153, 164, 253, 264, 35p2, 363, 453, 463, 464, 553, 554, 563, 564, 653, 654, 663, 664, 753, 763‧‧‧circle area

A1‧‧‧ Object side

A2‧‧‧Image side

CP1‧‧‧first center point

CP2‧‧‧Second Center Point

EL‧‧‧ extension line

I‧‧‧ Optical axis

Lm‧‧‧Edge light

Lc‧‧‧Edge light

OB‧‧‧ Optical Boundary

P‧‧‧plane

R‧‧‧point

TP1‧‧‧first transition point

TP2‧‧‧Second transition point

Z1‧‧‧ Optical axis area

Z2‧‧‧Circular area

Z3‧‧‧ relay area

FIG. 1 is a schematic diagram illustrating a planar structure of a lens.

FIG. 2 is a schematic diagram illustrating a planar concave-convex structure and a light focus of a lens.

FIG. 3 is a schematic diagram illustrating a planar structure of a lens of Example 1. FIG.

FIG. 4 is a schematic diagram illustrating a planar structure of a lens of Example 2. FIG.

FIG. 5 is a schematic diagram illustrating a planar structure of a lens of Example 3. FIG.

FIG. 6 is a schematic diagram of an optical imaging lens according to a first embodiment of the present invention.

7A to 7D are diagrams illustrating longitudinal spherical aberration and various aberrations of the optical imaging lens of the first embodiment.

FIG. 8 shows detailed optical data of the optical imaging lens of the first embodiment of the present invention.

FIG. 9 shows aspherical parameters of the optical imaging lens according to the first embodiment of the present invention.

FIG. 10 is a schematic diagram of an optical imaging lens according to a second embodiment of the present invention.

11A to 11D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens of the second embodiment.

FIG. 12 shows detailed optical data of an optical imaging lens according to a second embodiment of the present invention.

FIG. 13 shows aspherical parameters of an optical imaging lens according to a second embodiment of the present invention.

FIG. 14 is a schematic diagram of an optical imaging lens according to a third embodiment of the present invention.

15A to 15D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens of the third embodiment.

FIG. 16 shows detailed optical data of an optical imaging lens according to a third embodiment of the present invention.

FIG. 17 shows aspherical parameters of an optical imaging lens according to a third embodiment of the present invention.

FIG. 18 is a schematic diagram of an optical imaging lens according to a fourth embodiment of the present invention.

19A to 19D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens of the fourth embodiment.

FIG. 20 shows detailed optical data of an optical imaging lens according to a fourth embodiment of the present invention.

FIG. 21 shows aspherical parameters of an optical imaging lens according to a fourth embodiment of the present invention.

FIG. 22 is a schematic diagram of an optical imaging lens according to a fifth embodiment of the present invention.

23A to 23D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens of the fifth embodiment.

FIG. 24 shows detailed optical data of an optical imaging lens according to a fifth embodiment of the present invention.

FIG. 25 shows aspherical parameters of an optical imaging lens according to a fifth embodiment of the present invention.

FIG. 26 is a schematic diagram of an optical imaging lens according to a sixth embodiment of the present invention.

27A to 27D are diagrams illustrating longitudinal spherical aberration and various aberrations of the optical imaging lens of the sixth embodiment.

FIG. 28 shows detailed optical data of an optical imaging lens according to a sixth embodiment of the present invention.

FIG. 29 shows aspherical parameters of an optical imaging lens according to a sixth embodiment of the present invention number.

FIG. 30 is a schematic diagram of an optical imaging lens according to a seventh embodiment of the present invention.

31A to 31D are diagrams illustrating longitudinal spherical aberration and various aberrations of the optical imaging lens of the seventh embodiment.

FIG. 32 shows detailed optical data of an optical imaging lens according to a seventh embodiment of the present invention.

FIG. 33 illustrates aspherical parameters of an optical imaging lens according to a seventh embodiment of the present invention.

FIG. 34 is a schematic diagram of an optical imaging lens according to an eighth embodiment of the present invention.

35A to 35D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens of the eighth embodiment.

FIG. 36 shows detailed optical data of an optical imaging lens according to an eighth embodiment of the present invention.

FIG. 37 shows aspherical parameters of an optical imaging lens according to an eighth embodiment of the present invention.

FIG. 38 is a schematic diagram of an optical imaging lens according to a ninth embodiment of the present invention.

39A to 39D are diagrams illustrating longitudinal spherical aberration and various aberrations of the optical imaging lens of the ninth embodiment.

FIG. 40 shows detailed optical data of an optical imaging lens according to a ninth embodiment of the present invention.

FIG. 41 shows aspherical parameters of an optical imaging lens according to a ninth embodiment of the present invention.

FIG. 42 is a schematic diagram of an optical imaging lens according to a tenth embodiment of the present invention.

43A to 43D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens of the tenth embodiment.

FIG. 44 shows detailed optical data of an optical imaging lens according to a tenth embodiment of the present invention.

FIG. 45 shows aspherical parameters of an optical imaging lens according to a tenth embodiment of the present invention.

FIG. 46 shows the important parameters of the optical imaging lenses according to the first to sixth embodiments of the present invention and the values of their relational expressions.

FIG. 47 shows the important parameters of the optical imaging lenses of the seventh to tenth embodiments of the present invention and their numerical values.

The optical system in this specification includes at least one lens that receives imaging light from an incident optical system that is parallel to the optical axis to a half-view angle (HFOV) angle relative to the optical axis. The imaging light is imaged on the imaging surface through the optical system. The expression "a lens has positive refractive power (or negative refractive power)" means that the paraxial refractive power of the lens calculated by Gaussian optical theory is positive (or negative). The "object side (or image side) of the lens" is defined as a specific range of imaging light passing through the lens surface. The imaging light includes at least two types of light: chief ray Lc and marginal ray Lm (as shown in FIG. 1). The object side (or image side) of the lens can be divided into different areas according to different positions, including the optical axis area, the circumferential area, or one of the embodiments. One or more relay areas, the description of these areas will be described in detail below.

FIG. 1 is a radial sectional view of the lens 100. Two reference points on the surface of the lens 100 are defined: the center point and the transition point. The center point of the lens surface is an intersection of the surface and the optical axis I. As shown in FIG. 1, the first center point CP1 is located on the object side 110 of the lens 100, and the second center point CP2 is located on the image side 120 of the lens 100. The transition point is a point located on the surface of the lens, and the tangent to this point is perpendicular to the optical axis I. The optical boundary OB defining the lens surface is a point at which the ray Lm passing through the radially outermost edge of the lens surface intersects the lens surface. All transition points are located between the optical axis I and the optical boundary OB on the lens surface. In addition, if there are a plurality of conversion points on the surface of a single lens, the conversion points are named from the first conversion point in order from the radial outward direction. For example, the first conversion point TP1 (closest to the optical axis I), the second conversion point TP2 (shown in FIG. 4), and the Nth conversion point (farthest from the optical axis I).

The range from the center point to the first transition point TP1 is defined as an optical axis region, where the optical axis region includes the center point. The area that defines the Nth transition point farthest from the optical axis I and extends radially outward to the optical boundary OB is a circumferential area. In some embodiments, a relay region between the optical axis region and the circumferential region may be further included, and the number of relay regions depends on the number of transition points.

After the light rays parallel to the optical axis I pass through a region, if the light rays are deflected toward the optical axis I and the intersection point with the optical axis I is at the lens image side A2, the region is convex. After the light rays parallel to the optical axis I pass through a region, if the intersection of the extension line of the light rays and the optical axis I is located on the object side A1 of the lens, the region is concave.

In addition, referring to FIG. 1, the lens 100 may further include an optical boundary The assembly portion 130 extends radially outward in the OB. The assembling unit 130 is generally used for assembling the lens 100 to a corresponding element (not shown) of an optical system. The imaging light does not reach the assembly portion 130. The structure and shape of the assembling portion 130 are merely examples for explaining the present invention, and do not limit the scope of the present invention. The lens assembly 130 discussed below may be partially or completely omitted in the drawings.

Referring to FIG. 2, an optical axis region Z1 is defined between the center point CP and the first transition point TP1. A circumferential area Z2 is defined between the first transition point TP1 and the optical boundary OB on the lens surface. As shown in FIG. 2, the parallel light rays 211 intersect with the optical axis I on the image side A2 of the lens 200 after passing through the optical axis region Z1, that is, the focus of the parallel light rays 211 passing through the optical axis region Z1 is located at the R point of the image side A2 of the lens 200. Since the light and the optical axis I intersect at the image side A2 of the lens 200, the optical axis region Z1 is convex. Conversely, the parallel light rays 212 diverge after passing through the circumferential area Z2. As shown in FIG. 2, the extension line EL after the parallel light rays 212 pass through the circumferential area Z2 and the optical axis I intersect at the object side A1 of the lens 200, that is, the focal point of the parallel light rays 212 through the circumferential area Z2 is located at the point M of the object 200 A1 . Since the extension line EL of the light and the optical axis I intersect at the object side A1 of the lens 200, the circumferential region Z2 is concave. In the lens 200 shown in FIG. 2, the first transition point TP1 is a boundary between the optical axis region and the circumferential region, that is, the first transition point TP1 is a boundary point between a convex surface and a concave surface.

On the other hand, the determination of the surface asperity of the optical axis region can also be based on the judgment method of ordinary knowledgeable persons in this field, that is, the positive and negative signs of the radius of curvature (abbreviated as R value) of the paraxial axis to determine the surface of the optical axis region of the lens. Shaped bumps. R values can be commonly used in optical design software, such as Zemax or CodeV. R values are also common in optical design In the lens data sheet of the software. For the object side, when the R value is positive, the optical axis region of the object side is determined to be convex; when the R value is negative, the optical axis region of the object side is determined to be concave. Conversely, for the image side, when the R value is positive, the optical axis area of the image side is determined to be concave; when the R value is negative, the optical axis area of the image side is determined to be convex. The result of this method is consistent with the result of the above-mentioned determination method of the intersection point of the light / ray extension line and the optical axis. The determination method of the intersection point of the light / ray extension line and the optical axis is that the focus of the light with a parallel optical axis is located on the lens The object shape or image side is used to judge the surface irregularities. The "a region is convex (or concave)", "a region is convex (or concave)", or "a convex (or concave) region" described in this specification can be used interchangeably.

Figures 3 to 5 provide examples of determining the shape of the lens area and the area boundary in each case, including the aforementioned optical axis area, circumferential area, and relay area.

FIG. 3 is a radial sectional view of the lens 300. Referring to FIG. 3, the image side 320 of the lens 300 has only one transition point TP1 within the optical boundary OB. The optical axis region Z1 and the circumferential region Z2 of the image side surface 320 of the lens 300 are shown in FIG. 3. The R value of this image side 320 is positive (ie, R> 0), and therefore, the optical axis region Z1 is concave.

In general, the shape of each area bounded by the transition point will be opposite to the shape of the adjacent area. Therefore, the transition point can be used to define the transformation of the shape, that is, the transition point from concave to convex or convex to concave. In FIG. 3, since the optical axis region Z1 is a concave surface, and the shape is changed at the transition point TP1, the circumferential region Z2 is a convex surface.

FIG. 4 is a radial sectional view of the lens 400. Referring to FIG. 4, a first transition point TP1 and a second transition point TP2 exist on the object side surface 410 of the lens 400. Define optical axis I Between the first switching point TP1 and the optical axis region Z1 of the object side surface 410. The R value of the object side surface 410 is positive (that is, R> 0). Therefore, the optical axis region Z1 is convex.

A circumferential area Z2 is defined between the second transition point TP2 and the optical boundary OB of the object side surface 410 of the lens 400, and the circumferential area Z2 of the object side surface 410 is also a convex surface. In addition, a relay region Z3 is defined between the first transition point TP1 and the second transition point TP2, and the relay region Z3 of the object side surface 410 is a concave surface. Referring to FIG. 4 again, the object side surface 410 includes the optical axis region Z1 between the optical axis I and the first transition point TP1 in the radial direction outward from the optical axis I and is located between the first transition point TP1 and the second transition point TP2 And a peripheral region Z2 between the second transition point TP2 and the optical boundary OB of the object side surface 410 of the lens 400. Since the optical axis region Z1 is convex and the shape changes from a first transition point TP1 to a concave shape, the relay region Z3 is concave and the shape changes from a second transition point TP2 to a convex shape, so the circumferential area Z2 is convex.

FIG. 5 is a radial sectional view of the lens 500. The object side surface 510 of the lens 500 has no transition point. For a lens surface without a transition point, such as the object side 510 of the lens 500, 0-50% of the distance from the optical axis I to the lens surface optical boundary OB is defined as the optical axis region, and from the optical axis I to the lens surface optical 50 to 100% of the distance between the borders OB is the circumferential area. Referring to the lens 500 shown in FIG. 5, 50% of the distance from the optical axis I to the optical boundary OB on the surface of the lens 500 from the optical axis I is defined as the optical axis region Z1 of the object side surface 510. The R value of the object side surface 510 is positive (that is, R> 0). Therefore, the optical axis region Z1 is convex. Since the object side surface 510 of the lens 500 has no transition point, the peripheral region Z2 of the object side surface 510 is also convex. The lens 500 may further have an assembly portion (not shown) extending radially outward from the circumferential region Z2.

FIG. 6 is a schematic diagram of an optical imaging lens according to a first embodiment of the present invention, and FIGS. 7A to 7D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the first embodiment. Please refer to FIG. 6 first. The optical imaging lens 10 according to the first embodiment of the present invention includes a first lens 1 and a second lens 2 in order from an object side A1 to an image side A2 along an optical axis I of the optical imaging lens 10. , A third lens 3, an aperture 0, a fourth lens 4, a fifth lens 5 and a filter 9. When the light emitted by an object to be shot enters the optical imaging lens 10, it passes through the first lens 1, the second lens 2, the third lens 3, the aperture 0, the fourth lens 4, the fifth lens 5, and the filter in order. After film 9, an image is formed on an imaging plane 99 (Image Plane). The filter 9 is, for example, an infrared cut-off filter, and is disposed between the fifth lens 5 and the imaging surface 99. It is added that the object side A1 is a side facing the object to be photographed, and the image side A2 is a side facing the imaging surface 99.

In this embodiment, the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the fifth lens 5, and the filter 9 of the optical imaging lens 10 each have a direction toward the object side A1 and make The object sides 15, 25, 35, 45, 55, 95 through which the imaging light passes, and the image sides 16, 26, 36, 46, 56, 96 facing the image side A2 and passing the imaging light.

The first lens 1 is the first lens whose refractive index from the object side to the image side is equal to zero mm ^-1 . The material of the first lens 1 is glass. Both the object side surface 15 and the image side surface 16 of the first lens 1 are flat. The optical axis region 15p1 of the object-side surface 15 of the first lens 1 is a flat surface. A peripheral region 15p2 of the object side surface 15 of the first lens 1 is a flat surface. The optical axis region 16p1 of the image side surface 16 of the first lens 1 is a flat surface. The peripheral region 16p2 of the image side surface 16 of the first lens 1 is a flat surface.

The second lens 2 is a first lens having a refractive power from the first lens 1 to the image side A2. The second lens 2 has a negative refractive power. The material of the second lens 2 is plastic. The optical axis region 251 of the object-side surface 25 of the second lens 2 is convex, and the circumferential region 253 thereof is convex. The optical axis region 262 of the image side surface 26 of the second lens 2 is a concave surface, and its circumferential region 264 is a concave surface. In this embodiment, both the object side surface 25 and the image side surface 26 of the second lens 2 are aspherical surfaces.

The third lens 3 is a second lens having refractive power from the first lens 1 to the image side A2. The third lens 3 has a positive refractive power. The material of the third lens 3 is glass. The object side surface 35 of the third lens 3 is a flat surface. The optical axis region 35p1 of the object side surface 35 of the third lens 3 is a plane, and the circumferential region 35p2 of the object side surface 35 of the third lens 3 is a plane. The optical axis region 361 of the image side surface 36 of the third lens 3 is convex, and its circumferential region 363 is convex. In this embodiment, the image side surface 36 of the third lens 3 is spherical.

The aperture 0 is disposed between the third lens 3 and the fourth lens 4.

The fourth lens 4 is a first lens having a refractive power from the aperture 0 to the number of image side A2. The fourth lens 4 has a positive refractive power. The material of the fourth lens 4 is plastic. The optical axis region 451 of the object-side surface 45 of the fourth lens 4 is convex, and the circumferential region 453 thereof is convex. The optical axis region 461 of the image side surface 46 of the fourth lens 4 is convex, and the circumferential region 463 thereof is convex. In this embodiment, both the object side surface 45 and the image side surface 46 of the fourth lens 4 are aspherical surfaces.

The fifth lens 5 is a second lens having a refractive power from the aperture 0 to the number of image side A2. Lenses. The fifth lens 5 has a positive refractive power. The material of the fifth lens 5 is plastic. The optical axis region 552 of the object-side surface 55 of the fifth lens 5 is a concave surface, and the circumferential region 554 thereof is a concave surface. The optical axis region 561 of the image side surface 56 of the fifth lens 5 is convex, and the circumferential region 564 thereof is concave. In this embodiment, both the object side surface 55 and the image side surface 56 of the fifth lens 5 are aspherical surfaces.

In addition, in this embodiment, the fourth lens 4 and the fifth lens 5 are filled with a gel, a film, or a cement material to form a cemented lens.

The optical imaging lens 10 of the first embodiment has good thermal stability. For example, the optical imaging lens 10 is based on a normal temperature of 20 ° C, and its focal shift is 0.0000 millimeters (mm). The optical imaging lens 10's focal shift at -20 ° C is -0.0228 millimeters ( mm), and the focal length offset of the optical imaging lens 10 is 0.0423 millimeters (mm) at 80 ° C, but the invention is not limited thereto.

Other detailed optical data of the first embodiment are shown in FIG. 8, and the overall system focal length (EFL) of the optical imaging lens 10 of the first embodiment is 1.635 millimeters (mm), and a half field angle (half field) of view (HFOV) is 50.648 °, the system length is 14.713 mm, the aperture value (F-number, Fno) is 1.830, and the image height is 2.340 mm, where the system length is from the object side 15 of the first lens 1 to the imaging surface The distance of 99 on the optical axis I.

In addition, in this embodiment, the six surfaces of the object side 25, 45, 55 and the image side 26, 46, 56 are even aspheric surfaces, and these aspheric surfaces are defined according to the following formula :

Y: the distance between the point on the aspheric curve and the optical axis; Z: the depth of the aspheric surface; Distance); R: radius of curvature of the lens surface; K: conic coefficient; a _i : aspherical coefficient of the i-th order.

The aspherical surface coefficients of the above-mentioned object side surfaces 25, 45, 55 and image side surfaces 26, 46, 56 in the formula (1) are shown in FIG. 9. Wherein, the field number 25 in FIG. 9 indicates that it is the aspheric coefficient of the object side surface 25 of the second lens 2, and the other fields are deduced by analogy. It should be noted that since the fourth lens 4 and the fifth lens 5 are cemented with each other to form a cemented lens, the aspheric coefficient of the image side 46 may refer to the aspheric coefficient of the object side 55.

In addition, the relationship between important parameters in the optical imaging lens 10 of the first embodiment is shown in FIG. 46, where the unit of the parameter Fno in FIG. 46 is dimensionless and the unit of the parameter HFOV is degree (°), The unit of the field "EFL" and the field "SR" to the field "AAG" is millimeter (mm), and the unit of the other fields is dimensionless. And the column below “first” in the table of FIG. 46 represents the relevant optical parameters of the first embodiment, and so on.

T1 is the thickness of the first lens 1 on the optical axis I; T2 is the thickness of the second lens 2 on the optical axis I; T3 is the thickness of the third lens 3 on the optical axis I; T4 is the thickness of the fourth lens 4 on the optical axis I; T5 is the thickness of the fifth lens 5 on the optical axis I Thickness on the axis I; G12 is the distance on the optical axis I from the image side 16 of the first lens 1 to the object side 25 of the second lens 2, that is, the distance between the first lens 1 and the second lens 2 on the optical axis I Air gap; G23 is the distance on the optical axis I from the image side 26 of the second lens 2 to the object side 35 of the third lens 3, that is, the air gap on the optical axis I of the second lens 2 and the third lens 3; G34 is the distance on the optical axis I from the image side 36 of the third lens 3 to the object side 45 of the fourth lens 4, that is, the air gap between the third lens 3 and the fourth lens 4 on the optical axis I; G45 is the first The distance from the image side 46 of the four lenses 4 to the object side 55 of the fifth lens 5 on the optical axis I, that is, the air gap between the fourth lens 5 and the fifth lens 5 on the optical axis I; G5F is the fifth lens 5 The distance from the image side 56 to the object side 95 of the filter 9 on the optical axis I; AAG is the air gap between the first lens 1 and the second lens 2 on the optical axis I, and the second lens 2 and the third Between the lenses 3 The air gap on the optical axis I between the third lens 3 and the fourth lens 4 on the optical axis I and the air gap on the optical axis I between the fourth lens 4 and the fifth lens 5 which is Sum of G12, G23, G34, and G45; ALT is the sum of the thicknesses of the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, and the fifth lens 5 on the optical axis I, that is, T1, T2 The sum of T3, T4, and T5; TL is the distance I on the optical axis from the object side 15 of the first lens 1 to the image side 56 of the fifth lens 5; TTL is the distance from the object side 15 of the first lens 1 to the imaging plane 99 at Distance on the optical axis I; BFL is the distance on the optical axis I from the image side 56 of the fifth lens 5 to the imaging plane 99; HFOV is the half angle of view of the optical imaging lens 10; ImgH is the image height of the optical imaging lens 10; and EFL is the system focal length of the optical imaging lens 10.

In addition, redefine: L2A1R is the effective radius of the object side 25 of the second lens 2; SR is the effective radius of the aperture 0; f1 is the focal length of the first lens 1; f2 is the focal length of the second lens 2; f3 is the third lens 3 focal length; f4 is the focal length of the fourth lens 4; f5 is the focal length of the fifth lens 5; n1 is the refractive index of the first lens 1; n2 is the refractive index of the second lens 2; n3 is the refractive index of the third lens 3; n4 is the refractive index of the fourth lens 4; n5 is the refractive index of the fifth lens 5; V1 is the Abbe coefficient of the first lens 1 V2 is the Abbe coefficient of the second lens 2; V3 is the Abbe coefficient of the third lens 3; V4 is the Abbe coefficient of the fourth lens 4; and V5 is the Abbe coefficient of the fifth lens 5.

7A to 7D, FIG. 7A illustrates the longitudinal spherical aberration (Longitudinal Spherical Aberration) of the first embodiment, and FIGS. 7B and 7C illustrate the first embodiment when the wavelength is 470 nm, Field Curvature aberrations on the imaging plane 99 at 555 nm and 650 nm in the sagittal direction and field curvature aberrations in the Tangential direction. The diagram in FIG. 7D illustrates the first embodiment as its Distortion aberration on the imaging plane 99 at wavelengths of 470 nm, 555 nm, and 650 nm. The longitudinal spherical aberration diagram of this first embodiment is shown in FIG. 7A. The curves formed by each wavelength are very close to the middle, indicating that off-axis rays with different heights of each wavelength are concentrated near the imaging point. It can be seen that the deviation of the curve of the wavelength curve is that the deviation of the imaging points of off-axis rays with different heights is controlled within the range of ± 0.030 millimeters. Therefore, the first embodiment does significantly improve the spherical aberration of the same wavelength. In addition, three representative wavelengths The distances between them are also quite close, and the imaging positions representing different wavelengths of light have been quite concentrated, so that chromatic aberration is also obtained. Significant improvement.

In the two field curvature aberration diagrams of FIGS. 7B and 7C, the field curvature aberrations of three representative wavelengths in the entire field of view fall within ± 0.08 millimeters, indicating that the optical system of the first embodiment can effectively eliminate Aberration. The distortion aberration diagram of FIG. 7D shows that the distortion aberration of the first embodiment is maintained within a range of ± 15%, which indicates that the distortion aberration of the first embodiment has met the imaging quality requirements of the optical system. It is explained that compared with the existing optical lens, the first embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 14.713 mm.

FIG. 10 is a schematic diagram of an optical imaging lens according to a second embodiment of the present invention, and FIGS. 11A to 11D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the second embodiment. Please refer to FIG. 10 first, a second embodiment of the optical imaging lens 10 of the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: each optical data, aspheric coefficient, and these lenses 1, 2 The parameters between, 3, 4, and 5 are more or less different. It should be noted here that, in order to clearly show the drawing, reference numerals similar to those in the first embodiment are omitted in FIG. 10.

The detailed optical data of the optical imaging lens 10 of the second embodiment is shown in FIG. 12, and the overall system focal length of the optical imaging lens 10 of the second embodiment is 1.667 mm, the half angle of view (HFOV) is 57.089 °, and the aperture value (Fno ) Is 1.830, the system length is 14.997 mm, and the image height is 2.340 mm.

As shown in FIG. 13, in the second embodiment, the aspheric coefficients of the object side and the image side of some lenses in formula (1).

In addition, among the important parameters in the optical imaging lens 10 of the second embodiment, The relationship is shown in Figure 46.

The longitudinal spherical aberration diagram of the second embodiment in FIG. 11A shows that the deviation of imaging points of off-axis rays of different heights is controlled within a range of ± 0.025 mm. In the two field curvature aberration diagrams of FIGS. 11B and 11C, the field curvature aberrations of the three representative wavelengths in the entire field of view fall within ± 0.10 millimeters. The distortion aberration diagram of FIG. 11D shows that the distortion aberration of the second embodiment is maintained within a range of ± 10%. In this embodiment, the focal length offset of the optical imaging lens 10 is 0.0000mm at 20 ° C, the focal length offset of the optical imaging lens 10 is -0.0081mm at -20 ° C, and the focal distance of the optical imaging lens 10 is offset. The displacement was 0.0346 mm at 80 ° C. Therefore, compared with the existing optical imaging lens, the second embodiment can achieve good imaging quality with good thermal stability.

It can be known from the above description that the second embodiment has an advantage over the first embodiment in that the half-view angle of the second embodiment is greater than the half-view angle of the first embodiment. The distortion aberration of the second embodiment is smaller than that of the first embodiment. Whether at an ambient temperature of -20 degrees or 80 degrees, the absolute value of the focal length shift amount of the second embodiment is smaller than the absolute value of the focal length shift amount of the first embodiment.

FIG. 14 is a schematic diagram of an optical imaging lens according to a third embodiment of the present invention, and FIGS. 15A to 15D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the third embodiment. Please refer to FIG. 14 first, a third embodiment of the optical imaging lens 10 according to the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: each optical data, aspheric coefficient, and these lenses 1, 2 The parameters between, 3, 4, and 5 are more or less different. It should be noted here that in order to clearly show the drawing, it is omitted in FIG. 14 Face-shaped reference numerals similar to those of the first embodiment.

The detailed optical data of the optical imaging lens 10 of the third embodiment is shown in FIG. 16, and the overall system focal length of the optical imaging lens 10 of the third embodiment is 2.015 mm, the half angle of view (HFOV) is 45.313 °, and the aperture value (Fno ) Is 1.830, the system length is 14.473 mm, and the image height is 2.340 mm.

As shown in FIG. 17, in the third embodiment, the aspherical coefficients of the object side and the image side of some lenses in formula (1).

In addition, the relationship between important parameters in the optical imaging lens 10 of the third embodiment is shown in FIG. 46.

The longitudinal spherical aberration diagram of the third embodiment in FIG. 15A shows that deviations of imaging points of off-axis rays of different heights are controlled within a range of ± 0.033 mm. In the two field curvature aberration diagrams of FIG. 15B and FIG. 15C, the field curvature aberrations of the three representative wavelengths in the entire field of view fall within ± 0.05 mm. The distortion aberration diagram of FIG. 15D shows that the distortion aberration of the third embodiment is maintained within a range of ± 18%. In this embodiment, the focal length offset of the optical imaging lens 10 is 0.0000mm at 20 ° C, the focal length offset of the optical imaging lens 10 is -0.0089mm at -20 ° C, and the focal distance of the optical imaging lens 10 is offset. The displacement was 0.0258 mm at 80 ° C. Therefore, compared with the existing optical imaging lens, the third embodiment can achieve good imaging quality with good thermal stability.

It can be known from the above description that the third embodiment has an advantage over the first embodiment in that the system length of the third embodiment is shorter than the system length of the first embodiment. The field curvature aberration of the third embodiment is smaller than that of the first embodiment. Whether it's at -20 At an ambient temperature of 80 degrees, the absolute value of the focal length shift amount of the third embodiment is less than the absolute value of the focal length shift amount of the first embodiment.

18 is a schematic diagram of an optical imaging lens according to a fourth embodiment of the present invention, and FIGS. 19A to 19D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the fourth embodiment. Please refer to FIG. 18 first, a fourth embodiment of the optical imaging lens 10 of the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: each optical data, aspheric coefficient, and these lenses 1, 2 The parameters between, 3, 4, and 5 are more or less different. It should be noted here that, in order to clearly show the drawing, part of the figure similar to that of the first embodiment is omitted in FIG. 18.

The detailed optical data of the optical imaging lens 10 of the fourth embodiment is shown in FIG. 20, and the overall system focal length of the optical imaging lens 10 of the fourth embodiment is 1.540 mm, the half angle of view (HFOV) is 45.014 °, and the aperture value (Fno ) Is 1.830, the system length is 13.855 mm, and the image height is 2.340 mm.

As shown in FIG. 21, in the fourth embodiment, the aspherical coefficients of the object side and the image side of some lenses in formula (1).

In addition, the relationships among important parameters in the optical imaging lens 10 of the fourth embodiment are shown in FIG. 46.

The longitudinal spherical aberration diagram of the fourth embodiment in FIG. 19A shows that the deviation of imaging points of off-axis rays of different heights is controlled within a range of ± 0.033 mm. In the two field curvature aberration diagrams of FIG. 19B and FIG. 19C, the field curvature aberrations of the three representative wavelengths in the entire field of view fall within ± 0.06 mm. The distortion aberration diagram of FIG. 19D shows that the distortion aberration of the fourth embodiment is maintained within a range of ± 20%. In this embodiment, optical The focal length offset of the imaging lens 10 is 0.0000mm at 20 ° C, the focal length offset of the optical imaging lens 10 is -0.0065mm at -20 ° C, and the focal length offset of the optical imaging lens 10 is 80 ° C 0.0265mm. Therefore, compared with the existing optical imaging lens, the fourth embodiment can achieve good imaging quality with good thermal stability.

It can be known from the above description that the fourth embodiment has an advantage over the first embodiment in that the system length of the fourth embodiment is smaller than the system length of the first embodiment. The field curvature aberration of the fourth embodiment is smaller than that of the first embodiment. Whether at an ambient temperature of -20 degrees or 80 degrees, the absolute value of the focal length shift amount of the fourth embodiment is smaller than the absolute value of the focal length shift amount of the first embodiment.

22 is a schematic diagram of an optical imaging lens according to a fifth embodiment of the present invention, and FIGS. 23A to 23D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the fifth embodiment. Please refer to FIG. 22 first, a fifth embodiment of the optical imaging lens 10 of the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: each optical data, aspheric coefficient, and these lenses 1, 2 The parameters between, 3, 4, and 5 are more or less different. It should be noted that, in order to clearly show the drawing, part of the figure similar to that of the first embodiment is omitted in FIG. 22.

The detailed optical data of the optical imaging lens 10 of the fifth embodiment is shown in FIG. 24. The overall system focal length of the optical imaging lens 10 of the fifth embodiment is 2.712 mm, the half angle of view (HFOV) is 34.179 °, and the aperture value (Fno ) Is 1.830, the system length is 14.473 mm, and the image height is 2.340 mm.

As shown in FIG. 25, in the fifth embodiment, the object side of some lenses The aspheric coefficients of the terms in the formula (1) with the image side.

In addition, the relationships among important parameters in the optical imaging lens 10 of the fifth embodiment are shown in FIG. 46.

The longitudinal spherical aberration diagram of the fifth embodiment in FIG. 23A shows that the deviation of imaging points of off-axis rays of different heights is controlled within a range of ± 0.033 mm. In the two field curvature aberration diagrams of FIG. 23B and FIG. 23C, field curvature aberrations of three representative wavelengths in the entire field of view fall within ± 0.08 millimeters. The distortion aberration diagram of FIG. 23D shows that the distortion aberration of the fifth embodiment is maintained within a range of ± 28%. In this embodiment, the focal length offset of the optical imaging lens 10 is 0.0000mm at 20 ° C, the focal length offset of the optical imaging lens 10 is -0.0035mm at -20 ° C, and the focal distance of the optical imaging lens 10 is offset. The displacement was 0.0393 mm at 80 ° C. Therefore, compared with the existing optical imaging lens, the fifth embodiment can achieve good imaging quality with good thermal stability.

It can be known from the foregoing description that the fifth embodiment has an advantage over the first embodiment in that the system length of the fifth embodiment is smaller than the system length of the first embodiment. Whether at an ambient temperature of -20 degrees or 80 degrees, the absolute value of the focal length shift amount of the fifth embodiment is smaller than the absolute value of the focal length shift amount of the first embodiment.

FIG. 26 is a schematic diagram of an optical imaging lens according to a sixth embodiment of the present invention, and FIGS. 27A to 27D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the sixth embodiment. Please refer to FIG. 26 first, a sixth embodiment of the optical imaging lens 10 of the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: each optical data, aspheric coefficient, and these lenses 1, 2 The parameters between 3, 4, 4 and 5 are more or less slidely different. In addition, in the sixth embodiment, the optical axis region 151 of the object side surface 15 of the first lens 1 is convex, and the circumferential region 153 thereof is convex. The optical axis region 162 of the image side surface 16 of the first lens 1 is a concave surface, and its circumferential region 164 is a concave surface. It should be noted here that, in order to clearly show the drawing, reference numerals similar to those in the first embodiment are omitted in FIG. 26.

The detailed optical data of the optical imaging lens 10 of the sixth embodiment is shown in FIG. 28, and the overall system focal length of the optical imaging lens 10 of the sixth embodiment is 1.644 mm, the half angle of view (HFOV) is 50.011 °, and the aperture value (Fno ) Is 1.830, the system length is 14.627 mm, and the image height is 2.340 mm.

As shown in FIG. 29, in the sixth embodiment, the aspherical coefficients of the object side and the image side of some lenses in formula (1).

In addition, the relationships among important parameters in the optical imaging lens 10 of the sixth embodiment are shown in FIG. 46.

The longitudinal spherical aberration diagram of the sixth embodiment in FIG. 27A shows that the deviation of imaging points of off-axis rays of different heights is controlled within a range of ± 0.038 mm. In the two field curvature aberration diagrams of FIGS. 27B and 27C, the field curvature aberrations of the three representative wavelengths in the entire field of view fall within ± 0.05 mm. The distortion aberration diagram of FIG. 27D shows that the distortion aberration of the sixth embodiment is maintained within a range of ± 11.3%. In this embodiment, the focal length offset of the optical imaging lens 10 is 0.0000mm at 20 ° C, the focal length offset of the optical imaging lens 10 is -0.0067mm at -20 ° C, and the focal distance of the optical imaging lens 10 is offset. The displacement was 0.0324 mm at 80 ° C. Therefore, compared with the existing optical imaging lens, the sixth embodiment can achieve good performance with good thermal stability. Good imaging quality.

It can be known from the foregoing description that the sixth embodiment has an advantage over the first embodiment in that the system length of the sixth embodiment is smaller than the system length of the first embodiment. The field curvature aberration of the sixth embodiment is smaller than that of the first embodiment. The distortion aberration of the sixth embodiment is smaller than that of the first embodiment. Whether at an ambient temperature of -20 degrees or 80 degrees, the absolute value of the focal length shift amount of the sixth embodiment is smaller than the absolute value of the focal length shift amount of the first embodiment.

FIG. 30 is a schematic diagram of an optical imaging lens according to a seventh embodiment of the present invention, and FIGS. 31A to 31D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the seventh embodiment. Please refer to FIG. 30. A seventh embodiment of the optical imaging lens 10 of the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: The seventh embodiment of the optical imaging lens 10 of the present invention is The object side A1 to the image side A2 sequentially include a first lens 1, a second lens 2, a third lens 3, an aperture 0, a fourth lens 4, and a first lens along an optical axis I of the optical imaging lens 10. Five lenses 5, a sixth lens 6 and a filter 9. When light emitted by a subject enters the optical imaging lens 10 and passes through the first lens 1, the second lens 2, the third lens 3, the aperture 0, the fourth lens 4, the fifth lens 5, and the sixth lens in order. After the lens 6 and a filter 9, an image is formed on the imaging surface 99. The fifth lens 5 has a negative refractive power.

In the present embodiment, the sixth lens 6 of the optical imaging lens 10 has an object side 65 facing the object side A1 and passing imaging light and an image side 66 facing the image side A2 and passing imaging light.

The sixth lens 6 is disposed between the fifth lens 5 and the filter 9. Sixth through The mirror 6 has a positive refractive power. The material of the sixth lens 6 is plastic. The optical axis region 651 of the object side surface 65 of the sixth lens 6 is convex, and the circumferential region 653 thereof is convex. The optical axis region 661 of the image side surface 66 of the sixth lens 6 is convex, and the circumferential region 664 thereof is concave. In this embodiment, both the object side surface 65 and the image side surface 66 of the sixth lens 6 are aspherical surfaces.

It should be noted here that, in order to clearly show the drawing, part of the figure similar to that of the first embodiment is omitted in FIG. 30.

The optical imaging lens 10 of the seventh embodiment has good thermal stability. For example, the focal length shift of the optical imaging lens 10 is 0.0000 mm at 20 ° C, the focal shift of the optical imaging lens 10 (Focal shift) is -0.0006 millimeters (mm) at -20 ° C, and optical imaging The focal length shift of the lens 10 is 0.0228 millimeters (mm) at 80 ° C, but the invention is not limited thereto.

The detailed optical data of the optical imaging lens 10 of the seventh embodiment is shown in FIG. 32, and the overall system focal length of the optical imaging lens 10 of the seventh embodiment is 1.568 mm, the half angle of view (HFOV) is 48.705 °, and the aperture value (Fno ) Is 1.830, the system length is 14.108 mm, and the image height is 2.340 mm.

In addition, in the seventh embodiment, the object sides 25, 35, 45, 65, 26, 36, 46, and 66 image sides of the second lens 2, the fourth lens 4, the fifth lens 5, and the sixth lens 6 total, The eight surfaces are all aspheric, and these aspheric surfaces are defined according to formula (1), which will not be repeated here. The aspheric coefficients of the above surfaces in formula (1) are shown in FIG. 33. Wherein, the field number 25 in FIG. 33 indicates that it is the aspheric coefficient of the object side surface 25 of the second lens 2, and the other fields are deduced by analogy.

In addition, the relationships among important parameters in the optical imaging lens 10 of the seventh embodiment are shown in FIG. 47. The unit of the parameter Fno in Fig. 47 is dimensionless, the unit of the parameter HFOV is degree (°), and the unit of the field "EFL" and the field "SR" to the field "AAG" are millimeters (mm), other The fields are dimensionless. And the column below “seventh” in the table of FIG. 47 represents the relevant optical parameters of the seventh embodiment, and so on.

The parameter definitions in the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, and the fifth lens 5 mentioned in this seventh embodiment are substantially similar to the parameter definitions mentioned in the above paragraph, The difference is that T6 is the thickness of the sixth lens 6 on the optical axis I; G56 is the distance from the image side 56 of the fifth lens 5 to the object side 65 of the sixth lens 6 on the optical axis I; G6F is the sixth lens The distance from the image side 66 of the image 6 to the object side 95 of the filter 9 on the optical axis I; f6 is the focal length of the sixth lens 6; n6 is the refractive index of the sixth lens 6; Shell coefficient.

31A to 31D, the diagram of FIG. 31A illustrates the longitudinal spherical aberration on the imaging plane 99 of the seventh embodiment at wavelengths of 650 nm, 555 nm, and 470 nm, and the diagrams of FIGS. 31B and 31C illustrate the seventh Example When the wavelengths are 650 nm, 555 nm, and 470 nm, the field curvature aberration in the sagittal direction and the field curvature in the meridional direction are on the imaging surface 99. The diagram in FIG. 31D illustrates the seventh embodiment Distortion aberrations on the imaging plane 99 at lengths of 650 nm, 555 nm, and 470 nm. The longitudinal spherical aberration diagram of the seventh embodiment in FIG. 31A, the curves formed by each wavelength are very close to each other, indicating that off-axis rays with different heights of each wavelength are concentrated near the imaging point. It can be seen that the deviation of the curve of the wavelength curve is that the deviation of the imaging points of the off-axis rays with different heights is controlled within the range of ± 0.030 mm. Therefore, the seventh embodiment does significantly improve the spherical aberration of the same wavelength. In addition, three representative wavelengths The distances between them are also quite close, and the imaging positions representing different wavelengths of light have been quite concentrated, so that the chromatic aberration has also been significantly improved.

In the two field curvature diagrams of FIGS. 31B and 31C, the field curvature aberrations of three representative wavelengths in the entire field of view fall within ± 0.06 millimeters, indicating that the optical system of the seventh embodiment can effectively eliminate field curvature. Aberration. The distortion diagram in FIG. 31D shows that the distortion aberration of the seventh embodiment is maintained within a range of ± 29.5%, which indicates that the distortion aberration of the seventh embodiment has met the imaging quality requirements of the optical imaging lens. Compared with the existing optical imaging lens, the seventh embodiment can still provide better imaging quality under the condition that the system length has been shortened to about 14.108 mm, so the seventh embodiment can maintain good optical performance. , Can shorten the length of the optical imaging lens.

FIG. 34 is a schematic diagram of an optical imaging lens according to an eighth embodiment of the present invention, and FIGS. 35A to 35D are longitudinal spherical aberrations and various aberration diagrams of the optical imaging lens according to the eighth embodiment. Please refer to FIG. 34, and please refer to FIG. 34. An eighth embodiment of the optical imaging lens 10 of the present invention is substantially similar to the seventh embodiment, and the difference between the two is as follows: the eighth embodiment of the present invention Optical imaging lens 10 from the object side A1 to the image Side A2 includes a first lens 1, a second lens 2, a third lens 3, an aperture 0, a fourth lens 4, a fifth lens 5, and a lens along an optical axis I of the optical imaging lens 10. The sixth lens 6, a seventh lens 7 and a filter 9. When light emitted by a subject enters the optical imaging lens 10 and passes through the first lens 1, the second lens 2, the third lens 3, the aperture 0, the fourth lens 4, the fifth lens 5, and the sixth lens in order. After the lens 6, the seventh lens 7, and the filter 9, an image is formed on the imaging surface 99.

In this embodiment, the seventh lens 7 of the optical imaging lens 10 has an object side 75 that faces the object side A1 and allows imaging light to pass, and an image side 76 that faces the image side A2 and allows imaging light to pass.

The optical axis region 462 of the image side surface 46 of the fourth lens 4 is a concave surface, and its circumferential region 464 is a concave surface.

The optical axis region 551 of the object-side surface 55 of the fifth lens 5 is convex, and the circumferential region 553 thereof is convex. The optical axis region 561 of the image side surface 56 of the fifth lens 5 is convex, and the circumferential region 563 thereof is convex.

The sixth lens 6 has a negative refractive power. The optical axis region 652 of the object side surface 65 of the sixth lens 6 is a concave surface, and the circumferential region 654 thereof is a concave surface. The optical axis region 661 of the image side surface 66 of the sixth lens 6 is convex, and the circumferential region 663 thereof is convex.

The seventh lens 7 has a positive refractive power. An optical axis region 751 of the object-side surface 75 of the seventh lens 7 is convex, and a circumferential region 753 thereof is convex. The optical axis region 761 of the image side surface 76 of the seventh lens 7 is convex, and its circumferential region 763 is concave. In this embodiment, both the object side surface 75 and the image side surface 76 of the seventh lens 7 are aspherical surfaces.

In addition, in this embodiment, the fifth lens 5 and the sixth lens 6 are in a favorable position. Filled with colloid, film or cement material to form a cemented lens.

It should be noted that, in order to clearly show the drawing, part of the figure similar to that of the first and seventh embodiments is omitted in FIG. 34.

The optical imaging lens 10 of the eighth embodiment has good thermal stability. For example, the focal length shift of the optical imaging lens 10 is 0.0000 mm at 20 ° C, the focal shift of the optical imaging lens 10 (Focal shift) is -0.0008 millimeters (mm) at -20 ° C, and optical imaging The focal length offset of the lens 10 is 0.0240 millimeters (mm) at 80 ° C, but the invention is not limited thereto.

The detailed optical data of the optical imaging lens 10 of the eighth embodiment is shown in FIG. 36, and the overall system focal length of the optical imaging lens 10 of the eighth embodiment is 1.626 mm, the half angle of view (HFOV) is 48.236 °, and the aperture value (Fno ) Is 1.830, the system length is 14.633 mm, and the image height is 2.340 mm.

In addition, in the eighth embodiment, the object sides 25, 45, 55, 65, 75, and 26, 46 of the second lens 2, the fourth lens 4, the fifth lens 5, the sixth lens 6, and the seventh lens 7 56, 66, and 76 are like sides, and a total of ten faces are aspheric, and these aspheric surfaces are defined according to formula (1), and will not be repeated here. The aspheric coefficients of the above surfaces in formula (1) are shown in FIG. 37. Wherein, the field number 25 in FIG. 37 indicates that it is the aspheric coefficient of the object side surface 25 of the second lens 2, and the other fields are deduced by analogy. It should be noted that since the fifth lens 5 and the sixth lens 6 are cemented with each other to form a cemented lens, the aspheric coefficient of the image side 56 can refer to the aspheric coefficient of the object side 65.

In addition, the relationships among important parameters in the optical imaging lens 10 of the eighth embodiment are shown in FIG. 47.

The parameter definitions in the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the fifth lens 5, and the sixth lens 6 mentioned in this eighth embodiment are substantially similar to those mentioned in the above paragraph. The differences in the parameters obtained are: T7 is the thickness of the seventh lens 7 on the optical axis I; G67 is the distance of the image side 66 of the sixth lens 6 and the object side 75 of the seventh lens 7 on the optical axis I; G7F is the distance I on the optical axis from the image side 76 of the seventh lens 7 to the object side 95 of the filter 9; f7 is the focal length of the seventh lens 7; n7 is the refractive index of the seventh lens 7; and V7 is the first Abbe coefficient of seven lenses 7.

35A to 35D, the diagram of FIG. 35A illustrates the longitudinal spherical aberration on the imaging plane 99 at the wavelengths of 650 nm, 555 nm, and 470 nm, and the diagrams of FIGS. 35B and 35C illustrate the eighth embodiment, respectively. Example When the wavelengths are 650 nm, 555 nm, and 470 nm, the field curvature aberration in the sagittal direction and the field curvature in the meridional direction are on the imaging surface 99. The diagram in FIG. Distortion aberrations on the imaging plane 99 at 650 nm, 555 nm, and 470 nm. The vertical spherical aberration diagram of the eighth embodiment in FIG. 35A, the curves formed by each wavelength are very close to each other, indicating that off-axis rays with different heights of each wavelength are concentrated near the imaging point. It can be seen that the deviation of the curve of the wavelength curve is that the deviation of the imaging points of off-axis rays with different heights is controlled within the range of ± 0.01 mm. Therefore, the eighth embodiment does significantly improve the spherical aberration of the same wavelength. In addition, three representative wavelengths each other The distance between them is also quite close, and the imaging positions representing different wavelengths of light have been quite concentrated, so the chromatic aberration has also been significantly improved.

In the two field curvature diagrams of FIG. 35B and FIG. 35C, the field curvature aberrations of three representative wavelengths in the entire field of view fall within ± 0.033 millimeters, indicating that the optical system of the eighth embodiment can effectively eliminate field curvature. Aberration. The distortion diagram in FIG. 35D shows that the distortion aberration of the eighth embodiment is maintained within a range of ± 27.6%, which indicates that the distortion aberration of the eighth embodiment has met the imaging quality requirements of the optical imaging lens. Compared with the existing optical imaging lens, the eighth embodiment can still provide better imaging quality under the condition that the system length has been shortened to about 14.633mm. Therefore, the eighth embodiment can maintain good optical performance. , Can shorten the length of the optical imaging lens.

FIG. 38 is a schematic diagram of an optical imaging lens according to a ninth embodiment of the present invention, and FIGS. 39A to 39D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens according to the ninth embodiment. Please refer to FIG. 38 first, a ninth embodiment of the optical imaging lens 10 of the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: each optical data, aspheric coefficient, and these lenses 1, 2 The parameters between, 3, 4, and 5 are more or less different. In addition, in the ninth embodiment, the optical axis region 351 of the object side surface 35 of the third lens 3 is convex, and the circumferential region 353 thereof is convex. The fifth lens 5 has a negative refractive power. It should be noted here that, in order to clearly show the drawing, reference numerals similar to those in the first embodiment are omitted in FIG. 38.

The detailed optical data of the optical imaging lens 10 of the ninth embodiment is shown in FIG. 40, and the overall system focal length of the optical imaging lens 10 of the ninth embodiment is 2.046. Mm, half-view angle (HFOV) is 44.641 °, aperture value (Fno) is 2.600, system length is 14.951 mm, and image height is 2.340 mm.

As shown in FIG. 41, in the ninth embodiment, the aspherical coefficients of the object side and the image side of some lenses in formula (1).

In addition, the relationship between important parameters in the optical imaging lens 10 of the ninth embodiment is shown in FIG. 47.

The longitudinal spherical aberration diagram of the ninth embodiment in FIG. 39A shows that the deviations of the imaging points of the off-axis rays with different heights are controlled within a range of ± 0.01 mm. In the two field curvature aberration diagrams of FIGS. 39B and 39C, the field curvature aberrations of the three representative wavelengths in the entire field of view fall within ± 0.025 millimeters. The distortion aberration diagram of FIG. 39D shows that the distortion aberration of the ninth embodiment is maintained within a range of ± 15.6%. In this embodiment, the focal length offset of the optical imaging lens 10 is 0.0000mm at 20 ° C, the focal length offset of the optical imaging lens 10 is -0.0024mm at -20 ° C, and the focal distance of the optical imaging lens 10 is offset. The displacement was 0.0269 mm at 80 ° C. Therefore, compared with the existing optical imaging lens, the ninth embodiment can achieve good imaging quality with good thermal stability.

It can be known from the foregoing description that the ninth embodiment has an advantage over the first embodiment in that the longitudinal spherical aberration of the ninth embodiment is smaller than that of the first embodiment. The field curvature aberration of the ninth embodiment is smaller than that of the first embodiment. Whether at an ambient temperature of -20 degrees or 80 degrees, the absolute value of the focal length shift amount of the ninth embodiment is smaller than the absolute value of the focal length shift amount of the first embodiment.

FIG. 42 is a schematic diagram of an optical imaging lens according to a tenth embodiment of the present invention. 43A to 43D are diagrams of longitudinal spherical aberration and various aberrations of the optical imaging lens of the tenth embodiment. Please refer to FIG. 42 first, a tenth embodiment of the optical imaging lens 10 of the present invention is substantially similar to the first embodiment, and the differences between the two are as follows: each optical data, aspheric coefficient, and these lenses 1, 2 The parameters between, 3, 4, and 5 are more or less different. In addition, the optical axis region 351 of the object side surface 35 of the third lens 3 is convex, and the circumferential region 353 thereof is convex. The fourth lens 4 has a negative refractive power. The optical axis region 462 of the image side surface 46 of the fourth lens 4 is a concave surface, and its circumferential region 464 is a concave surface. The optical axis region 551 of the object-side surface 55 of the fifth lens 5 is convex, and the circumferential region 553 thereof is convex. The optical axis region 561 of the image side surface 56 of the fifth lens 5 is convex, and the circumferential region 563 thereof is convex. It should be noted here that, in order to clearly show the drawing, reference numerals similar to those in the first embodiment are omitted in FIG. 42.

The detailed optical data of the tenth embodiment of the optical imaging lens 10 is shown in FIG. 44. The overall system focal length of the tenth embodiment of the optical imaging lens 10 is 2.255 mm, the half angle of view (HFOV) is 52.800 °, and the aperture value (Fno ) Is 2.600, the system length is 14.997 mm, and the image height is 2.340 mm.

As shown in FIG. 45, in the tenth embodiment, the aspherical coefficients of the object side and the image side of some lenses in formula (1).

In addition, the relationships among important parameters in the optical imaging lens 10 of the tenth embodiment are shown in FIG. 47.

In the longitudinal spherical aberration diagram of this tenth embodiment, in FIG. 43A, the deviation of the imaging points of the off-axis rays of different heights is controlled within a range of ± 0.033 mm. In the two field curvature aberration diagrams of FIG. 43B and FIG. 43C, three representative wavelengths over the entire field of view The field curvature aberration falls within ± 0.041 mm. The distortion aberration diagram of FIG. 43D shows that the distortion aberration of the tenth embodiment is maintained within a range of ± 24%. In this embodiment, the focal length offset of the optical imaging lens 10 is 0.0000mm at 20 ° C, the focal length offset of the optical imaging lens 10 is -0.0018mm at -20 ° C, and the focal distance of the optical imaging lens 10 is offset. The displacement was 0.0037 mm at 80 ° C. Therefore, compared with the existing optical imaging lens, the tenth embodiment can achieve good imaging quality with good thermal stability.

It can be known from the above description that the tenth embodiment has an advantage over the first embodiment in that the half-view angle of the tenth embodiment is greater than that of the first embodiment. Whether at an ambient temperature of -20 degrees or 80 degrees, the absolute value of the focal length shift amount of the tenth embodiment is smaller than the absolute value of the focal length shift amount of the first embodiment.

Continuing from the above, in the optical imaging lens 10 according to the embodiment of the present invention, the first lens 1 is the first lens from the object side A1 to the image side A2. The refractive index of the first lens 1 is equal to zero mm ^-1 and the A lens 1 is made of a lower cost glass material, and a second lens 2 is a first lens having a refractive power from the number of the first lens 1 to the image side A2, and the second lens 2 is made of a lower cost plastic material. The third lens 3 is a second lens having refractive power from the first lens 1 to the image side A2, the third lens 3 has a positive refractive power, and the fourth lens 4 is from the aperture 0 to the image side A2. The first lens having refractive power and at least one of the object-side surface 45 and the image-side surface 46 of the fourth lens 4 is aspherical, and the fifth lens 5 has refractive power from the aperture 0 to the number of image sides A2. The object side 55 and the image side 56 of the second lens and the fifth lens 5 are aspheric. The optical imaging lens 10 according to the embodiment of the present invention is designed to be resistant to wind, rain, and sun, etc. Tests in harsh environments and is suitable for providing thermal stability, large half-view angles, low cost and distortion aberration dimensions Car in the range of ± 30% with the lens.

The longitudinal spherical aberration, astigmatic aberration, and distortion of the embodiments of the present invention all conform to the use specification. In addition, the three off-axis rays of red, green, and blue at different heights are concentrated near the imaging point. The deviation of each curve shows that the deviation of the imaging points of off-axis rays of different heights is controlled and has Good spherical aberration, aberration, distortion suppression ability. Further referring to the imaging quality data, the distances of the three representative wavelengths of red, green, and blue are also quite close to each other, indicating that the present invention has good concentration of different wavelengths of light in various states and has excellent dispersion suppression capabilities, which can produce excellent Imaging quality.

In the optical imaging lens 10 according to the embodiment of the present invention, the conditional expression of 1.250 ≦ L2A1R / ImgH ≦ 2.200 may be further met, which is beneficial to maintaining a better range of the half angle of view and the system image height to achieve a design of the majority of the angle of view.

In the optical imaging lens 10 according to the embodiment of the present invention, the conditional formula of ImgH / SR ≦ 2.800 can be further met, and it is beneficial to realize the design of large aperture and large system image height, and it can better meet 1.500 ≦ ImgH / SR. A conditional expression of ≦ 2.800.

In the optical imaging lens 10 according to the embodiment of the present invention, the conditional formula of 5.000 ≦ TTL / EFL can be further met, which is beneficial to increase the half angle of view, and can better meet 5.000 ≦ TTL / EFL ≦ 9.000.

In the optical imaging lens 10 according to the embodiment of the present invention, the object-side surface 15 and the image-side surface 16 of the first lens 1 may be further designed as a plane, and thus designed It can be processed in one batch and then cut to avoid the qualitative analysis after grinding the glass and the process of molding the glass, which will greatly reduce the difficulty and cost of manufacturing. The cost of the two glass lenses added to the third lens is equivalent to the negative of the first lens The cost of diopter glass lenses.

In the optical imaging lens 10 according to the embodiment of the present invention, the object-side surface 35 of the third lens 3 can be further designed as a flat surface, and thus the assembly efficiency of the tolerance can be improved by the design.

In the optical imaging lens 10 of the embodiment of the present invention, there are no more than six lenses with refractive power, which is beneficial to reduce the difficulty of design and achieve the purpose of reducing costs.

In the optical imaging lens 10 according to the embodiment of the present invention, the fourth lens 4 and the fifth lens 5 may be further cemented, and the image side 46 of the fourth lens 4 is designed as an aspheric surface and the object side of the fifth lens 5. The 55 is designed as an aspheric surface. This design is beneficial to reduce various aberrations and improve imaging quality.

In the optical imaging lens 10 of the embodiment of the present invention, a part of the lenses can be further made of plastic material to further reduce the cost. For example, some of the lenses in the optical imaging lens 10 can better meet any of the following conditional expressions. One: 12.000 ≦ V2 / n2 ≦ 19.000 or 32.000 ≦ V2 / n2 ≦ 37.000, 12.000 ≦ V4 / n4 ≦ 19.000 or 32.000 ≦ V4 / n4 ≦ 37.000, 12.000 ≦ V5 / n5 ≦ 19.000 or 32.000 ≦ V5 / n5 ≦ 37.000 Among them, the lens that meets any of the above conditional expressions is made of a plastic material with a lower cost.

In the optical imaging lens 10 according to the embodiment of the present invention, the third lens 3 may also be made of glass, and the third lens 3 may be set in front of the aperture 0 in cooperation with the third lens 3. The absolute value of the focal length offset of the optical imaging lens 10 in an environment of -20 ° C to 80 ° C can be less than 0.045 mm. For example, the third lens 3 may better meet any one of the following conditional expressions: V3 / n3 ≦ 11.000, 20.000 ≦ V3 / n3 ≦ 31.000 or 38.000 ≦ V3 / n3 ≦ 66.000, in which any one of the above conditional expression ranges is met. The material of the third lens 3 is a glass material with lower cost.

46 to FIG. 47, FIG. 46 to FIG. 47 are tabular diagrams of various optical parameters of the first embodiment to the tenth embodiment.

For the following conditional expressions, at least one of the purposes is to maintain the system focal length and the optical parameters to an appropriate value, to avoid any parameter being too large to be beneficial to the correction of the overall aberration of the optical imaging system, or to avoid any parameter Too small to affect assembly or increase manufacturing difficulty.

Among them, the optical imaging lens 10 can meet the conditional expression of (EFL + T5) /G23≦2.400, preferably can satisfy the conditional expression of 0.200 ≦ (EFL + T5) /G23≦2.400; the optical imaging lens 10 can meet (EFL + The conditional expression of T1) /T4≦4.700 can preferably meet the conditional expression of 0.800 ≦ (EFL + T1) /T4≦4.700; the optical imaging lens 10 can meet (EFL + G34) / (T2 + G12) ≦ 3.800. The conditional expression can preferably meet the conditional expression of 1.000 ≦ (EFL + G34) / (T2 + G12) ≦ 3.800; the optical imaging lens 10 can meet the conditional expression of (EFL + T2) / (T1 + T5) ≦ 2.000, Preferably it can meet the conditional expression of 0.500 ≦ (EFL + T2) / (T1 + T5) ≦ 2.000; the optical imaging lens 10 can meet the condition of (EFL + ALT) /AAG≦4.000 The formula can preferably meet the conditional formula of 1.100 ≦ (EFL + ALT) /AAG≦4.000.

For the following conditional expressions, the purpose of at least one of them is to maintain a proper value for the thickness and interval of each lens, to avoid any parameter being too large to be detrimental to the overall thinning of the optical imaging lens, or to prevent any parameter from being too small and affecting Assembly or manufacturing difficulties.

Among them, the optical imaging lens 10 can meet the conditional expression of TL / BFL ≦ 6.000, preferably can meet the conditional expression of 2.300 ≦ TL / BFL ≦ 6.000; the optical imaging lens 10 can meet (T1 + T5 + G12 + G45) / The conditional expression of T3 ≦ 3.100, preferably can be satisfied, the conditional expression of 0.800 ≦ (T1 + T5 + G12 + G45) /T3≦3.100; the optical imaging lens 10 can satisfy (T1 + T2 + G12 + G45) / G34 ≦ The conditional expression of 9.200 can preferably meet the conditional expression of 1.300 ≦ (T1 + T2 + G12 + G45) /G34≦9.200.

In addition, any combination of the parameters of the embodiment may be selected to increase the lens limitation, which is beneficial to the lens design of the same architecture of the present invention.

In view of the unpredictability of the design of the optical system, under the framework of the present invention, meeting the above conditions can better shorten the telescope lens of the present invention, increase the aperture, increase the imaging quality, or improve the assembly yield to improve the previous Disadvantages of technology.

The numerical ranges including the maximum and minimum values obtained from the combined proportional relationship of the optical parameters disclosed in the embodiments of the present invention can be implemented accordingly.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Inventions, anyone with ordinary knowledge in the technical field to which they belong can make minor changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the scope of the attached patent application as follows: quasi.

Claims (20)

An optical imaging lens includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order along an optical axis from an object side to an image side. Each of the first lens to the fifth lens includes an object side facing the object side and passing imaging light and an image side facing the image side and passing imaging light; the first lens is from the object side to the image The first lens having a refractive index equal to zero mm ^-1 from the side; the second lens is the first lens having the refractive index from the first lens to the image side; the third lens is from the The first lens has a second refractive index from the image side, and the third lens has a positive refractive index; the fourth lens has the first refractive index from the aperture to the image side. At least one of the object side of the fourth lens and the image side of the fourth lens is an aspheric surface; and the fifth lens is the first lens having a refractive power from the aperture to the number of image sides. Two lenses, the object side of the fifth lens and the image side of the fifth lens are both Spherical, wherein the absolute value of the focal length of the imaging lens at -20 ℃ ~ 80 ℃ environment offset less than 0.045 mm. For example, the optical imaging lens of the first patent application scope, wherein the optical imaging lens more satisfies the following conditional formula: 1.250 ≦ L2A1R / ImgH ≦ 2.200, where L2A1R is an effective radius of the object side of the second lens, and ImgH is an image height of the optical imaging lens. For example, the optical imaging lens of the first patent application scope, wherein the optical imaging lens more satisfies the following conditional formula: ImgH / SR ≦ 2.800, where ImgH is an image height of the optical imaging lens, and SR is one of the aperture Effective radius. An optical imaging lens includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order along an optical axis from an object side to an image side. Each of the first lens to the fifth lens includes an object side facing the object side and passing imaging light and an image side facing the image side and passing imaging light; the first lens is from the object side to the image The first lens having a refractive index equal to zero mm ^-1 from the side; the second lens is the first lens having the refractive index from the first lens to the image side; the third lens is from the The first lens has a refractive power from the number of the image side to the second lens; the fourth lens is the first lens having the refractive power from the aperture to the number of the image side, and the object of the fourth lens At least one of the side surface and the image side surface of the fourth lens is aspheric; the fifth lens is a second lens having a refractive power from the aperture to the image side, and the object of the fifth lens Both the side surface and the image side surface of the fifth lens are aspheric; wherein the optical imaging lens Under conditions sufficient to formula: 1.250 ≦ L2A1R / ImgH ≦ 2.200, wherein a is the effective radius of the object side surface of the second lens for L2A1R, and that a high image ImgH optical imaging lens. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens further satisfies any of the following conditional expressions: 12.000 ≦ V2 / n2 ≦ 19.000 or 32.000 ≦ V2 / n2 ≦ 37.000, where V2 is the An Abbe coefficient of the second lens, and n2 is a refractive index of the second lens. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens satisfies any of the following conditional expressions: V3 / n3 ≦ 11.000, 20.000 ≦ V3 / n3 ≦ 31.000 or 38.000 ≦ V3 / n3 ≦ 66.000 , Where V3 is an Abbe coefficient of the third lens, and n3 is a refractive index of the third lens. For example, the optical imaging lens of the first or fourth scope of the patent application, wherein both the object side of the first lens and the image side of the first lens are flat. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens more satisfies the following conditional expression: (EFL + T5) /G23≦2.400, where EFL is a system focal length of the optical imaging lens , T5 is a thickness of the fifth lens on the optical axis, and G23 is an air gap on the optical axis between the second lens and the third lens. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens more satisfies the following conditional expression: (EFL + G34) / (T2 + G12) ≦ 3.800, EFL is one of the optical imaging lenses. System focal length, G34 is an air gap on the optical axis between the third lens and the fourth lens, T2 is a thickness of the second lens on the optical axis, and G12 is the first lens and the An air gap between the second lenses on the optical axis. For example, the optical imaging lens of the first or fourth scope of the patent application, wherein the optical imaging lens more satisfies the following conditional expression: (T1 + T5 + G12 + G45) /T3≦3.100, T1 is the first lens in the A thickness on the optical axis, T5 is a thickness of the fifth lens on the optical axis, G12 is an air gap on the optical axis between the first lens and the second lens, and G45 is the fourth An air gap on the optical axis between the lens and the fifth lens, and T3 is a thickness of the third lens on the optical axis. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens more satisfies the following conditional expression: (EFL + ALT) /AAG≦4.000, EFL is a system focal length of the optical imaging lens, ALT Is a total thickness of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens on the optical axis, and AAG is between the first lens and the second lens. An air gap on the optical axis, an air gap on the optical axis between the second lens and the third lens, and an air gap on the optical axis between the third lens and the fourth lens And an air gap sum of an air gap on the optical axis between the fourth lens and the fifth lens. For example, the optical imaging lens of the fourth scope of the patent application, wherein the absolute value of the focal length offset of the optical imaging lens in an environment of -20 ° C to 80 ° C is less than 0.045 mm. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens satisfies any of the following conditional expressions: 12.000 ≦ V4 / n4 ≦ 19.000 or 32.000 ≦ V4 / n4 ≦ 37.000, where V4 is the An Abbe coefficient of the fourth lens, and n4 is a refractive index of the fourth lens. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens satisfies any of the following conditional expressions: 12.000 ≦ V5 / n5 ≦ 19.000 or 32.000 ≦ V5 / n5 ≦ 37.000, where V5 is the An Abbe coefficient of the fifth lens, and n5 is a refractive index of the fifth lens. For example, the optical imaging lens of the first or fourth scope of the patent application, wherein the object side of the third lens is a flat surface. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens more satisfies the following conditional formula: 5.000 ≦ TTL / EFL, where TTL is the side of the object of the first lens to an imaging surface at A distance on the optical axis, and EFL is a system focal length of the optical imaging lens. For example, the optical imaging lens of the first or fourth item of the patent application scope, wherein the optical imaging lens more satisfies the following conditional expression: (EFL + T1) /T4≦4.700, EFL is a system focal length of the optical imaging lens, T1 Is a thickness of the first lens on the optical axis, and T4 is a thickness of the fourth lens on the optical axis. For example, the optical imaging lens of item 1 or 4 of the patent application scope, wherein the optical imaging lens more satisfies the following conditional expression: (EFL + T2) / (T1 + T5) ≦ 2.000, EFL is one of the optical imaging lenses. System focal length, T2 is a thickness of the second lens on the optical axis, T1 is a thickness of the first lens on the optical axis, and T5 is a thickness of the fifth lens on the optical axis. For example, the optical imaging lens of the first or fourth scope of the patent application, wherein the optical imaging lens more satisfies the following conditional expression: (T1 + T2 + G12 + G45) /G34≦9.200, T1 is the first lens in the A thickness on the optical axis, T2 is a thickness of the second lens on the optical axis, G12 is an air gap on the optical axis between the first lens and the second lens, and G45 is the fourth An air gap on the optical axis between the lens and the fifth lens, and G34 is an air gap on the optical axis between the third lens and the fourth lens. For example, the optical imaging lens of the first or fourth scope of the patent application, wherein the optical imaging lens more satisfies the following conditional expression: TL / BFL ≦ 6.000, TL is the object side of the first lens to the fifth lens A distance of the image side on the optical axis, and BFL is a distance of the image side of the fifth lens to an imaging plane on the optical axis.