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WO2020061925A1 - 摄像头和终端 - Google Patents

摄像头和终端 Download PDF

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Publication number
WO2020061925A1
WO2020061925A1 PCT/CN2018/108020 CN2018108020W WO2020061925A1 WO 2020061925 A1 WO2020061925 A1 WO 2020061925A1 CN 2018108020 W CN2018108020 W CN 2018108020W WO 2020061925 A1 WO2020061925 A1 WO 2020061925A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
camera
optical axis
segment
display panel
Prior art date
Application number
PCT/CN2018/108020
Other languages
English (en)
French (fr)
Inventor
林威智
彭哲
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18934906.1A priority Critical patent/EP3836526B1/en
Priority to ES18934906T priority patent/ES2945726T3/es
Priority to JP2021510185A priority patent/JP7074404B2/ja
Priority to PCT/CN2018/108020 priority patent/WO2020061925A1/zh
Priority to US17/280,363 priority patent/US11297175B2/en
Priority to CN201880097329.0A priority patent/CN112703722B/zh
Priority to KR1020217008458A priority patent/KR102466292B1/ko
Publication of WO2020061925A1 publication Critical patent/WO2020061925A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0264Details of the structure or mounting of specific components for a camera module assembly
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0018Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/003Light absorbing elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/022Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/02Bodies
    • G03B17/12Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/55Optical parts specially adapted for electronic image sensors; Mounting thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Definitions

  • the present application relates to the technical field of cameras of terminals, and in particular, to a camera and a terminal.
  • the design of the narrow bezel and full-screen structure not only retains the front camera, but also compresses the footprint of the front camera as much as possible. The smaller the structural size of the camera, the better.
  • the present application provides a camera and a terminal.
  • the size of the camera is small, which can reduce the occupied space.
  • a camera is disposed on the same side of a terminal as a display panel, the camera includes a lens barrel and a plurality of lenses laminated in the lens barrel along the optical axis direction of the camera, and the lens
  • the barrel includes a first segment and a second segment arranged and interconnected along the direction of the optical axis.
  • the lens contained in the first segment is a first lens, and the first lens includes a light incident surface and a light exit.
  • the side surface includes a first surface and a second surface connected, and a vertical distance between the first surface and the optical axis is less than The vertical distance between the second surface and the optical axis, the shape of the first segment is adapted to the shape of the first lens, and the portion of the first segment that cooperates with the first surface is used for It is arranged adjacent to the display panel, and part of the second segment is used to be stacked with the edge of the display panel.
  • the structure of the first lens is an incomplete circle Because the shape of the first segment matches the shape of the first lens, the display panel at the position of the first segment corresponding to the first surface can be set closer to the optical axis, thereby further reducing the size of the camera and achieving a reduction in camera occupation Space effect.
  • the first lens includes an optical effective area and a non-optical effective area disposed on the periphery of the optical effective area, and a vertical distance between the first surface and the optical axis is greater than or equal to a radius of the optical effective area .
  • the first surfaces of the first lenses provided in this embodiment are all located in the non-optical effective area.
  • the non-optical effective area does not participate in imaging and does not occupy the position of the optical effective area of the imaging.
  • the number of the first lenses is two or more, and the first faces of all the first lenses are flush and coplanar.
  • the first surface of the first section of the lens barrel adapted to the first lens also has a complete surface, which is convenient It is installed adjacent to or even close to the display panel.
  • the first surface of the first lens is parallel to the optical axis.
  • the end surface of the display panel can be adjacent to the entire first surface of the first section or even installed next to it, which is more conducive to reducing the space occupied by the camera.
  • the first surface of the first lens forms an included angle with the optical axis, and the included angle ranges from 1 ° to 10 °.
  • the side surface further includes a third surface, the third surface is disposed opposite to the first surface, the second surface is connected between the third surface and the first surface, and the third surface A vertical distance between the surface and the optical axis is smaller than a vertical distance between the second surface and the optical axis.
  • the third surface is adjacent to or even close to the middle frame Setting can further compress the camera size and reduce the occupied space, so that the display panel can be further increased in size.
  • the first surface and / or the third surface is a flat surface or an arc surface.
  • the first surface and the third surface are disposed symmetrically along the optical axis.
  • the shape of the first surface and the third surface are the same, and the vertical distance from the first surface to the optical axis is the same as the vertical distance from the third surface to the optical axis, which is convenient for manufacturing. .
  • a first light-shielding film is disposed on an inner wall of the first segment, and the first light-shielding film is disposed adjacent to the first surface and / or the third surface of the first lens.
  • the first light-shielding film can block light, reduce the influence of light from the non-optical effective area on the first and / or third surface on the optical effective area, and improve the imaging of light effect.
  • a second light shielding film is provided on the first surface and / or the third surface.
  • the function of the second light-shielding film on the first lens is similar to that of the above-mentioned embodiment in which the first light-shielding film is provided on the inner wall of the first section. Reduce the amount of the second light-shielding film and save costs.
  • the surface roughness of the first surface and / or the third surface of all the first lenses is higher than the surface roughness of the second surface.
  • the surface roughness of the first surface and / or the third surface of the first lens is higher than that of the second surface, and a light shielding effect can be achieved.
  • the first section is made by a two-material injection molding process, and the position of the first section opposite to the first surface and / or the third surface is set as a flexible material, and the first section and the first section are made of a flexible material.
  • the opposite sides of the two sides are set to a rigid material, and the flexible material is elastic. This embodiment can further reduce the occupied space of the camera.
  • the flexible material of the first section is further provided with a buffer material.
  • the buffer material acts as a buffer to avoid damage from the camera and the display panel or the middle frame.
  • connection between the first segment and the second segment forms a stepped surface, and the stepped surface is used for positioning the display panel.
  • the number of lenses in the lens barrel is five, and the number of the first lenses in the first section is two or three; or, the number of lenses in the lens barrel is six.
  • the number of the first lenses in the first paragraph is 2 or 3; or, the number of the lenses in the lens barrel is 7 and the first lenses in the first paragraph are The number of one lens 21 is three or four.
  • an embodiment of the present application provides a terminal including a display panel, a middle frame, and the camera according to any one of the first embodiments.
  • the display panel is disposed in a space surrounded by the middle frame.
  • the camera is disposed on the same side as the display panel, and the first section of the lens barrel of the camera is disposed adjacent to the display panel.
  • the display panel By setting the display panel adjacent to the first segment of the lens barrel, since the first segment is adapted to the shape of the first lens, and the vertical distance between the first surface of the first lens and the optical axis is smaller than that of the second surface and the optical axis, The distance makes the size of the first segment of the camera smaller, and the display panel can be set closer to the middle frame, which increases the area ratio of the display panel on the terminal and facilitates the realization of the structural design of narrow bezels and full screens.
  • the second segment of the lens barrel of the camera is disposed adjacent to the middle frame, and there is a first gap between the first segment and the middle frame. Placing the second segment adjacent to or even close to the middle frame makes the camera as a whole closer to the middle frame, so that the display panel can be set closer to the middle frame, which is beneficial to increasing the screen ratio of the display panel.
  • a filler is provided in the first gap, and the filler is used to provide support for the first section.
  • the first segment can be supported by setting the filler so that the first segment is maintained in a preset position.
  • the filler can also have a buffer function. When the terminal is dropped, the first section is supported by the filler to avoid hard impact and to prevent the camera from being damaged.
  • the middle frame is provided with an elastic sheet, and the elastic sheet is in opposition to the first section.
  • the shrapnel can also be used to support the first section. When the terminal falls, the shrapnel elastically deforms to provide a buffer for the first section.
  • the shrapnel can also provide the function of electrical connection, that is, the static electricity on the camera can be connected to the middle frame to eliminate static electricity, and the static electricity on the camera can be prevented from affecting the imaging of the image sensor.
  • FIG. 1a is a schematic structural diagram of a conventional camera and a display panel.
  • FIG. 1b is a schematic structural diagram of a conventional terminal.
  • FIG. 1c is a schematic structural diagram of a camera and a display panel according to an embodiment.
  • FIG. 1d is a schematic structural diagram of a terminal according to an embodiment.
  • FIG. 1e is a schematic structural diagram of a first lens according to an embodiment.
  • FIG. 2a is a schematic cross-sectional structure diagram of a camera according to an embodiment.
  • FIG. 2b is a schematic cross-sectional view of a first lens according to an embodiment.
  • FIG. 2c is a schematic structural diagram of a plurality of lenses according to an embodiment.
  • FIG. 2d is a schematic structural diagram of a plurality of lenses of FIG. 2c arranged in a lens barrel.
  • FIG. 2e is a schematic structural diagram of a plurality of lenses according to another embodiment.
  • FIG. 2f is a schematic cross-sectional structure view of a first lens in a first segment of an embodiment.
  • FIG. 2g is a schematic cross-sectional structure diagram of a first lens in a first segment of another embodiment.
  • FIG. 3a is a schematic structural diagram of a plurality of lenses according to another embodiment.
  • FIG. 3b is a schematic structural diagram of a plurality of lenses of FIG. 3a arranged in a lens barrel.
  • FIG. 4a is a schematic sectional structural view of a camera according to an embodiment.
  • FIG. 4b is a schematic cross-sectional structure view of a first lens in a first segment of an embodiment.
  • FIG. 4c is a schematic cross-sectional structure diagram of a camera according to an embodiment.
  • FIG. 5 is a schematic structural view of a first stage of a camera before and after processing according to an embodiment.
  • 6a is a schematic cross-sectional structure diagram of a terminal according to an embodiment.
  • FIG. 6b is a schematic partial cross-sectional structure view at B in FIG. 6a.
  • FIG. 6c is a schematic structural diagram of an embodiment in FIG. 6b.
  • FIG. 6d is a schematic structural diagram of another embodiment in FIG. 6b.
  • Layer or “Layer Setting” means: the positional relationship of overlapping arrangements between two or more elements (or layer structures), specifically, one of the elements is used as a reference plane, and the other elements are on this reference plane.
  • the orthographic projection is at least partially overlapped with the element, including a layered setting in a fully overlapped state, and of course, a partially overlapped state.
  • At the time of partial overlap at least two elements are staggered in a direction perpendicular to the reference plane, and at least two Elements (or layer structures) can maintain a gap between them and can also contact each other.
  • the multiple lenses of the camera are round and complete lenses.
  • the display panel 30 When installed on the terminal, in order to increase the screen ratio as much as possible and reduce the space occupied by the camera, The display panel 30 is arranged adjacent to or even close to the lens barrel, and the size of the camera is reduced as much as possible. However, after research by the applicant, this design still has design space to further increase the screen ratio.
  • the scheme is disclosed in this application. Please refer to FIG. 1c and FIG. 1d. It can be seen that after the technical solution of the present application is adopted, the display panel 30 is closer to the middle frame 42 of the mobile terminal, which compresses the occupied space of the camera, so that the screen ratio is improved.
  • the lens 21 generally includes an optical effective area 217 and a non-optical effective area. Area 218.
  • the optically effective area 217 is generally provided to provide a mounting position and does not participate in imaging.
  • a camera provided in an embodiment of the present application is disposed on the same side of the terminal as the display panel 30.
  • the camera includes a lens barrel 10 and a plurality of lenses stacked in the lens barrel 10 along the optical axis A direction of the camera.
  • the lens barrel 10 includes a first segment 11 and a second segment 12 which are aligned and interconnected along the direction of the optical axis A.
  • the lens accommodated in the first segment 11 is a first lens 21.
  • the first lenses 21 each include a light incident surface 205, a light emitting surface 206, and a side surface connected between the light incident surface 205 and the light emitting surface 206.
  • the side surface includes a first surface 201 and a second surface 202 that are connected, and a vertical distance L1 between the first surface 201 and the optical axis A is smaller than the second surface 202 and the light.
  • the shape of the first segment 11 is adapted to the shape of the first lens 21. With reference to FIG. 1c, a portion of the first segment 11 that cooperates with the first surface 201 is used to be disposed adjacent to the display panel 30, and a portion of the second segment 12 is used to be stacked with an edge of the display panel 30 Settings.
  • the first The structure of the lens 21 is an incomplete circle. Since the shape of the first segment 11 and the shape of the first lens 21 are matched, the display panel 30 at the position of the first segment 11 corresponding to the first surface 201 can be closer to the optical axis A. Setting, thereby further compressing the size of the camera and achieving the effect of reducing the space occupied by the camera.
  • the situation in which the first segment 11 is adapted to the first lens 21 may be:
  • the wall thickness of the first section 11 is the same, so that the structure shown in FIG. 2d can be realized, that is, the outer wall of the first section 11 includes a first surface 111 and a second surface 112 connected to each other, and the first surface 111 and the first surface 201 are connected.
  • the second surface 112 corresponds to the second surface 202.
  • the wall thickness of the first section 11 is different.
  • the wall thickness at the first surface 111 corresponding to the first surface 201 is thinner than the wall thickness at the second surface 112 corresponding to the second surface 202, so that a display panel can be provided. After 30, the display panel 30 can be further closer to the optical axis A, and the overall size of the camera can be compressed.
  • the inner wall of the first segment 11 and the sides of the first lens 21 are closely attached to each other, and the first surface 111 of the first segment 11 and the end face of the display panel 30 are closely attached to each other. Further compress the overall size of the camera.
  • the inner wall of the first segment 11 and the second surface 202 of the first lens 21 may be closely arranged, and may have a gap with the first surface 201, and an anti-glare structure may be provided in the gap. This situation will be further explained in subsequent embodiments.
  • a gap is provided between the first surface 201 and the second surface 202 and the inner wall of the first section 11; or, the first section 11 corresponds to the second surface 202
  • the wall thickness at the second surface 112 is thinner than the wall thickness at the first surface 111 corresponding to the first surface 201.
  • the first surface 201 may be a flat surface or an arc surface
  • the second surface 202 is an arc surface
  • the optical axis A is a straight line passing through the center of the circle of the second surface 202.
  • the first lens 21 is a convex lens or a concave lens
  • the optical axis A is a normal line of the convex lens or the concave lens.
  • the vertical distance L1 between the first surface 201 and the optical axis A is the length of a perpendicular line passing through the point of the optical axis A and the plane of the first surface 201.
  • the vertical distance L1 between the first surface 201 and the optical axis A is the length of a point passing through the optical axis A and the closest point on the first surface 201.
  • the arc surface is an elliptical surface, and there is a smooth transition between the elliptical surface of the first surface 201 and the arc surface of the second surface 202.
  • the first lens 21 includes an optical effective area 217 and a non-optical effective area 218 disposed on the periphery of the optical effective area 217.
  • the first surface 201 and the A vertical distance L1 between the optical axes A is greater than or equal to a radius of the optical effective area 217.
  • the first surfaces 201 provided by the first lens 21 in this embodiment are all located in the non-optical effective area 218.
  • the non-optical effective area 218 does not participate in imaging and does not occupy the position of the imaging optical effective area 217, which can ensure that The refraction path of the light is complete without affecting imaging.
  • the number of the first lenses 21 is two or more, and the first surfaces 201 of all the first lenses 21 are flush and coplanar.
  • the embodiment of FIG. 2f shows three lenses (first lens), and is labeled as the first lens 21, the second lens 22, and the third lens 23, and the second lens 22 and the third lens 23, respectively.
  • the structure is similar to that of the first lens 21 and has a first plane 201 that is flush and coplanar.
  • the degree of unevenness of the lenses of the second lens 22 and the third lens 23 may be different, and may be set according to the needs and specific settings of light imaging, which is not limited here.
  • the first surface 111 of the first section 11 of the lens barrel 10 adapted to the first lenses 21 is The complete surface is not a stepped structure in the prior art, so it is convenient to be installed adjacent to or even close to the display panel 30.
  • the lens barrel 10 further includes a second section 12 connected to the first section 11, and a connection between the first section 11 and the second section 12.
  • a step surface 121 is formed there, and the step surface 121 is used for positioning the display panel 30.
  • the first surface 111 of the first section 11 is a complete surface
  • the step surface 121 is also a complete surface.
  • the first surface 111 and the step surface 121 form an included angle, and the included angle is preferably 90 °.
  • the display panel 30 is generally a flat structure.
  • the end surface of the display panel 30 is adjacent to or even close to the first surface 111 during installation.
  • the back surface of the display panel 30 ie, the surface facing away from the display surface
  • the display panel 30 is positioned.
  • the number of the lenses in the lens barrel 10 is five, and the number of the first lenses 21 in the first section 11 is two or three.
  • the first lens 21 shown in FIG. 2d is three lenses, that is, the first lens 21 / the second lens 22 / the third lens 23, and the lenses contained in the second section 12 are two lenses, that is, the fourth lens 24 and the fifth lens. Lens 25); or, the number of the lenses contained in the lens barrel 10 is six, and the number of the first lenses 21 contained in the first section 11 is two or three; or, the lens barrel
  • the number of the 10 lenses is 7, and the number of the first lenses 21 in the first paragraph 11 is 3 or 4.
  • This embodiment only exemplifies the number of lens layouts of some cameras. Of course, according to the specific structure of the camera, there may be other layout forms.
  • the first surface 201 of the first lens 21 is parallel to the optical axis A.
  • the first surfaces 201 of all the first co-planar first lenses 21 are parallel to the optical axis A.
  • the end surface of the display panel 30 is a plane perpendicular to the display surface, so that the end surface of the display panel 30 can be adjacent to or even next to the entire first surface 111 of the first section 11, which is more conducive to reducing the space occupied by the camera.
  • the first surface 201 of the first lens 21 and the optical axis A form an angle.
  • the first surfaces 201 of all the first lenses 21 that are flush and coplanar are at the same angle with the optical axis A.
  • the included angle can range from 1 ° to 10 °. This is set to facilitate the manufacture and assembly of the camera.
  • the first surface 201 is set at an angle with the optical axis A to form a draft angle.
  • the setting mold has a same included angle.
  • the first lens 21 and the first segment 11 of the lens barrel 10 are manufactured on the mold, it is convenient to remove the first lens 21 and the first segment 11 of the lens barrel 10 from the mold. In addition, when the camera is assembled, it is also convenient for the first lens 21 to be installed in the first section 11.
  • the side surface of the first lens 21 further includes a third surface 203.
  • the third surface 203 is disposed opposite to the first surface 201, and the second surface 202 is connected between the third surface 203 and the first surface 201.
  • a vertical distance L3 between the third surface 203 and the optical axis A is smaller than a vertical distance L2 between the second surface 202 and the optical axis A.
  • a third surface 203 opposite to the first surface 201 is provided, and the third surface 203 is similar to the first surface 201.
  • the vertical distance L3 between the third surface 203 and the optical axis A is smaller than the vertical distance L2 between the second surface 202 and the optical axis A, so that the third surface of the first section 11 of the lens barrel 10 and the third surface 203 are adapted.
  • the vertical distance from 113 to the optical axis A is smaller than the vertical distance from the second surface 112 to the optical axis A.
  • a vertical distance L3 between the third surface 203 and the optical axis A is greater than or equal to a radius of the optical effective region 217.
  • the third surfaces 203 of all the first lenses 21 are flush and coplanar; the third surface may also be flat or curved.
  • the first surface 201 and the third surface 203 are symmetrically disposed along the optical axis A.
  • the first surface 201 and the third surface 203 shown in the embodiment of FIG. 2f may be disposed symmetrically at the center or mirror-symmetrically.
  • the first surface 201 and the third surface 203 shown in the embodiment of FIG. 2g are arranged symmetrically in a mirror image.
  • the first surface 201 and the third surface 203 are arranged symmetrically along the optical axis A, so that the shapes of the first surface 201 and the third surface 203 are the same, and the vertical distance L1 from the first surface 201 to the optical axis A and the first The vertical distance L3 from the three surfaces 203 to the optical axis A is the same, which is convenient for manufacturing.
  • a first light shielding film 124 is disposed on an inner wall of the first section 11.
  • the first light shielding film 124 is disposed adjacent to the first surface 201 of the first lens 21.
  • the first light shielding film 124 is disposed adjacent to the first surface 201 and the third surface 203 of the first lens 21.
  • the non-optical effective area 218 does not participate in imaging, if light passes through, it will also cause certain interference to the light of the optical effective area 217. Therefore, by providing a first light shielding film 124 on the inner wall of the first section 11, the first light shielding film 124 can block light. The influence of light from the non-optical effective region 218 on the first surface 201 and / or the third surface 203 on the optical effective region 217 is reduced, and the effect of light imaging is improved.
  • the first light shielding film 124 may be a coating layer coated on the inner wall of the first section 11.
  • a black coating layer applied by a coating process, a film layer structure pasted by a paste process, or a film layer structure produced by an electroplating process may be used.
  • the first lens 21 is two or more
  • the first light shielding film 124 provided on the inner wall of the first section 11 covers the positions of the first surface 201 and / or the third surface 203 of all the first lenses 21.
  • the first light shielding film 124 can completely cover all the inner walls of the first section 11.
  • a second light-shielding film 213 is provided on the first surface 201 and / or the third surface 203.
  • the first lens 21 is provided with a second light-shielding film 213 on the first surface 201; in another embodiment, the first lens 21 is provided with a second light-shielding film 213 on the first surface 201 and the third surface 203 .
  • the second lens 22 is also on the first surface 201 and / or the first lens 201.
  • the third surface 203 is provided with a second light shielding film 223, and the third lens 23 is also provided with a second light shielding film 233 on the first surface 201 and / or the third surface 203.
  • a second light-shielding film 213 is provided on the first lens 21, and its function is similar to the foregoing embodiment in which the first light-shielding film 214 is provided on the inner wall of the first segment 11. The difference is that the second light-shielding film 213 is disposed on the first lens 21 in this embodiment.
  • the second light-shielding film 213 Compared to making the first light-shielding film 214 on the inner wall of the first section 11, the second light-shielding film 213 only needs to be made on the first lens 21, which can reduce the amount of the second light-shielding film 213 and save costs.
  • the manufacturing process of the second light-shielding film 213 on the first lens 21 is similar to the manufacturing process of the first light-shielding film 214, and reference is sufficient.
  • the surface roughness of the first surface 201 and / or the third surface 203 of all the first lenses 21 is higher than that of the first lens 201.
  • Surface roughness of the second surface 202 Specifically, in the embodiment of FIG. 2c, the surface roughness of the first surface 201 of the first lens 21 is higher than the surface roughness of the second surface 202; in the embodiment of FIG. 3a, the The surface roughness of the first surface 201 and the third surface 203 is higher than that of the second surface 202.
  • the first lens 21 is usually made of glass or resin, the surface roughness of a certain surface thereof is increased to form a structure similar to frosted glass, which can play a light-shielding effect. Therefore, in this embodiment, the surface roughness of the first surface 201 and / or the third surface 203 of the first lens 21 is higher than that of the second surface 202, and a light shielding effect can be achieved.
  • the first section 11 is made by a two-material injection molding process, and the first section 11 and the The position opposite to the first surface 201 and / or the third surface 203 is set to a flexible material 13, and the position opposite to the first surface 11 and the second surface 202 is set to a rigid material, and the flexible material 13 has elasticity. .
  • a portion of the rigid material of the first section 11 is used to support the first lens 21, and a portion of the flexible material 13 is elastic and can be elastically stretched and contracted so as to fit tightly on the first lens 21 to further reduce the lens barrel.
  • the first paragraph of 10 takes up space of 11.
  • the flexible material 13 may be a light-shielding film to provide a light-shielding function for the first lens 21.
  • a buffer material is further provided on the flexible material 13 of the first section 11.
  • the cushioning material can be a structure such as foam, and its function is to cushion the foam when the terminal is dropped, to avoid damage from the camera and the display panel 30 or the middle frame 42.
  • the manufacturing process of the first lens 21 in the embodiment of the present application may be a cutting process, and a complete circular first lens 21 may be provided first, and the first surface is obtained by cutting 201 and / or the third surface 203, the cut-out portion is indicated by reference numeral 215.
  • the first section 11 of the lens barrel 10 can be made by a casting process to form a shape that is adapted to the first lens 21. Compared to the circular first segment 11, the first segment 11 of this embodiment is equivalent to cutting out a part, which is indicated by reference numeral 115 in FIG. 5.
  • the finally formed first lens 21 includes an imaging area 80.
  • the imaging area 80 corresponds to the shape of a CCD or CMOS image sensor provided behind the camera, and is generally rectangular.
  • an embodiment of the present application further provides a terminal including a display panel 30, a middle frame 42, and a camera described in various embodiments of the present application.
  • the display panel 30 is disposed on the middle frame. 42; the camera is disposed on the same side as the display panel 30, and the first section 11 of the lens barrel 10 of the camera is disposed adjacent to the display panel 30.
  • the display panel 30 is disposed adjacent to the first section 11 of the lens barrel 10, since the first section 11 is adapted to the shape of the first lens 21, and the first surface 201 of the first lens 21 and the optical axis A
  • the vertical distance L1 is smaller than the vertical distance L2 of the second surface 202 and the optical axis A, so that the size of the first section 11 of the camera is reduced, and the display panel 30 can be set closer to the middle frame 42, which improves the display panel 30 on the terminal.
  • the area ratio (screen ratio) facilitates the structural design of narrow borders and full screens.
  • the second section 12 of the lens barrel 10 of the camera is disposed adjacent to the middle frame 42.
  • the first section 11 and the middle frame 42 have a first Gap 45.
  • the second end 12 is arranged next to the middle frame 42.
  • the second segment 12 is arranged adjacent to or even close to the middle frame 42, so that the camera as a whole is closer to the middle frame 42, so that the display panel 30 can be set closer to the middle frame 42, which is beneficial to improving the display panel 30. Screen ratio.
  • a filler 51 is provided in the first gap 45, and the filler 51 is used to provide support for the first section 11.
  • the first segment 11 can be supported by setting the filler 51 so that the first segment 11 is maintained at a preset position.
  • the filling material 51 may also have a buffer function. When the terminal is dropped, the first section 11 avoids hard impact under the support of the filling material 51 and avoids damage to the camera.
  • the filler 51 may be foam or the like.
  • the middle frame 42 is provided with an elastic piece 53, and the elastic piece 53 resists the first section 11.
  • the elastic piece 53 can also be used to support the first section 11.
  • the elastic piece 53 elastically deforms to provide a buffer for the first section 11.
  • the elastic sheet 53 can also provide an electrical connection function, that is, static electricity on the camera can be connected to the middle frame to eliminate static electricity, and static electricity on the camera can be prevented from affecting the imaging of the image sensor.
  • the terminal is further provided with a protective panel 41.
  • the protective panel 41 is preferably glass, which has good transparency, strength and rigidity.
  • the terminal in the embodiment of the present application may be a mobile terminal, such as a smart phone, a tablet computer, a mobile assistant, a portable notebook computer, and the like. Of course, it may also be a fixed terminal such as an automatic teller machine, a display, and the like.
  • a mobile terminal such as a smart phone, a tablet computer, a mobile assistant, a portable notebook computer, and the like.
  • it may also be a fixed terminal such as an automatic teller machine, a display, and the like.
  • the screen ratio of the display panel 30 of the smart phone is significantly increased and narrow. The effect of borders and full screen is better.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Studio Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Lens Barrels (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)

Abstract

本申请提供一种摄像头及终端,该摄像头与显示面板设置在终端的同侧,摄像头包括镜筒和沿着摄像头的光轴方向层叠设置在镜筒内的多个镜片,镜筒包括第一段,收容在第一段内的镜片为第一镜片,第一镜片包括入光面、出光面及连接在入光面和出光面之间的侧面,侧面包括相连的第一面和第二面,第一面与光轴之间的垂直距离小于第二面与光轴之间的垂直距离,第一段的形状与第一镜片的形状适配,第一段之与第一面配合的部分用于与显示面板相邻设置。通过上述设置,使得第一面对应的第一段的位置处的显示面板可以更靠近光轴设置,从而进一步压缩了摄像头的尺寸,实现了减小摄像头占用空间的效果。

Description

摄像头和终端 技术领域
本申请涉及终端的摄像头技术领域,具体涉及一种摄像头及终端。
背景技术
随着终端,例如智能手机的发展,窄边框和全面屏的结构设计中,既要保留前置摄像头,又要尽可能的压缩前置摄像头的占用空间,要求摄像头的结构尺寸越小越好。
实现摄像头尺寸减小的设计中,除了摄像头本身尺寸缩小,还有厂商提出了减小镜筒的壁厚、镜片的直径等,均能达到一定的减小尺寸的作用。本申请着力于进一步压缩摄像头的尺寸,以减小占用空间。
发明内容
为解决上述技术问题,本申请提供了一种摄像头及终端,该摄像头的尺寸小,可以减小占用空间。
第一方面,一种摄像头,与显示面板设置在终端的同侧,所述摄像头包括镜筒和沿着所述摄像头的光轴方向层叠设置在所述镜筒内的多个镜片,所述镜筒包括沿着所述光轴方向排列且互连的第一段和第二段,收容在所述第一段内的所述镜片为第一镜片,所述第一镜片包括入光面、出光面及连接在所述入光面和所述出光面之间的侧面,所述侧面包括相连的第一面和第二面,所述第一面与所述光轴之间的垂直距离小于所述第二面与所述光轴之间的垂直距离,所述第一段的形状与所述第一镜片的形状适配,所述第一段之与所述第一面配合的部分用于与所述显示面板相邻设置,部分所述第二段用于与所述显示面板边缘层叠设置。
通过设置镜筒的第一段内的第一镜片的第一面与光轴之间的垂直距离小于第二面与光轴之间的垂直距离,使得第一镜片的结构是不完整的圆形,由于第一段与第一镜片的形状适配,使得第一面对应的第一段的位置处的显示面板可以更靠近光轴设置,从而进一步压缩了摄像头的尺寸,实现了减小摄像头占用空间的效果。
其中,所述第一镜片包括光学有效区及设置在所述光学有效区外围的非光学有效区,所述第一面与所述光轴之间的垂直距离大于等于所述光学有效区的半径。本实施例的第一镜片设置的第一面均位于非光学有效区,非光学有效区不参与成像,也不占用成像的光学有效区的位置,能保证光线的折射路径完整,不影响成像。
其中,所述第一镜片的数量为两个或两个以上,所有的所述第一镜片的所述第一面齐平共面。通过设置第一镜片的数量为两个或两个以上,且所有的第一镜片齐平共面,与第一镜片适配的镜筒的第一段的第一表面也有一完整的表面,便于与显示面板相邻甚至紧靠安装。
其中,所述第一镜片的所述第一面与所述光轴平行。使得显示面板的端面可以与第一段的整个第一表面相邻甚至紧靠安装,更有利于减小摄像头占用空间。
其中,所述第一镜片的所述第一面与所述光轴呈一夹角,所述夹角的范围为1°~10°。 可便于摄像头的制造和装配
其中,所述侧面还包括第三面,所述第三面与所述第一面相背设置,所述第二面连接在所述第三面和所述第一面之间,所述第三面与所述光轴之间的垂直距离小于所述第二面与所述光轴之间的垂直距离。通过设置于第一面相背的第三面,且第三面也与第一面类似,第三面与光轴之间的垂直距离小于第二面与光轴之间的垂直距离,使得镜筒的第一段与第三面适配的第三表面到光轴的垂直距离小于第二表面到光轴的垂直距离,当摄像头装配到终端上时,第三表面与中框相邻甚至紧靠设置,可进一步压缩摄像头尺寸,减小占用空间,使得显示面板可进一步增大尺寸。
其中,所述第一面和/或所述第三面为平面或弧面。
其中,所述第一面和所述第三面沿所述光轴对称设置。通过设置第一面和第三面沿光轴对称设置,使得第一面和第三面的形状相同,第一面到光轴的垂直距离和第三面到光轴的垂直距离相同,便于制造。
其中,所述第一段的内壁设有第一遮光膜,所述第一遮光膜与所述第一镜片的所述第一面和/或所述第三面相邻设置。通过在第一段的内壁设第一遮光膜,第一遮光膜可以遮挡光线,减少第一面和/或第三面处的非光学有效区的光线对光学有效区的影响,提升光线成像的效果。
其中,所有的所述第一镜片的在所述第一面和/或所述第三面设有第二遮光膜。通过在第一镜片上设第二遮光膜,其功能与前述的在第一段内壁设第一遮光膜的实施例类似,不同的是,第二遮光膜仅需制作在第一镜片上,可减小第二遮光膜的用量,节约成本。
其中,所有的所述第一镜片的所述第一面和/或所述第三面的表面粗糙度高于所述第二面的表面粗糙度。设置第一镜片的第一面和/或第三面的表面粗糙度比第二面更高,可以起到遮光效果。
其中,所述第一段采用双料注塑成型工艺制作,所述第一段与所述第一面和/或所述第三面相对的位置设置为柔性材质,所述第一段与所述第二面相对的位置设置为刚性材质,所述柔性材质具有弹性。本实施例可以进一步减小摄像头的占用空间。
其中,所述第一段的所述柔性材质上还设有缓冲材质。当终端跌落时,缓冲材质起到缓冲的作用,避免摄像头与显示面板或中框等撞击而损坏。
其中,所述第一段和所述第二段的连接处形成台阶面,所述台阶面用于定位所述显示面板。
其中,所述镜筒内容置的镜片数量为5片,所述第一段内容置的所述第一镜片的数量为2片或3片;或者,所述镜筒内容置的镜片数量为6片,所述第一段内容置的所述第一镜片的数量为2片或3片;或者,所述镜筒内容置的镜片数量为7片,所述第一段内容置的所述第一镜片21的数量为3片或4片。
第二方面,本申请实施例提供一种终端,包括显示面板、中框和第一方面各种实施例中任一项所述的摄像头,所述显示面板设置于所述中框围设的空间内,所述摄像头与所述显示面板同侧设置,所述摄像头的镜筒的第一段与所述显示面板相邻设置。
通过设置显示面板与镜筒的第一段相邻设置,由于第一段与第一镜片形状适配,且第一镜片的第一面与光轴的垂直距离小于第二面与光轴的垂直距离,使得摄像头的第一段的 尺寸减小,显示面板可以设置的更靠近中框,提高了显示面板在终端上的面积占比,便于实现窄边框和全面屏的结构设计。
其中,所述摄像头的镜筒的第二段与所述中框相邻设置,所述第一段与所述中框之间具有第一空隙。将第二段与中框相邻甚至紧靠设置,使得摄像头整体更靠近中框,使得设置的显示面板可以更靠近中框设置,有利于提高显示面板的屏占比。
其中,所述第一空隙内设有填充物,所述填充物用于为所述第一段提供支撑。通过设置填充物可以支撑第一段,使得第一段保持在预设的位置。此外,填充物还可以具有缓冲功能,当终端跌落时,第一段在填充物的支撑下避免硬性撞击,避免摄像头损坏。
其中,所述中框上设有弹片,所述弹片与所述第一段抵持。弹片同样可以用于支撑第一段,当终端跌落时,弹片弹性变形而为第一段提供缓冲。此外,弹片还可以提供电连接的功能,即可以将摄像头上的静电接入中框而消除静电,避免摄像头上的静电积聚而影响图像传感器的成像。
附图说明
图1a是现有的一种摄像头与显示面板的结构示意图。
图1b是现有的一种终端的结构示意图。
图1c是一种实施例的摄像头和显示面板的结构示意图。
图1d是一种实施例的终端的结构示意图。
图1e是一种实施例的第一镜片的结构示意图。
图2a是一种实施例的摄像头的剖视结构示意图。
图2b是一种实施例的第一镜片的剖视结构示意图。
图2c是一种实施例的多个镜片的结构示意图。
图2d是图2c的多个镜片设置于镜筒内的结构示意图。
图2e是另一种实施例的多个镜片的结构示意图。
图2f是一种实施例的第一段内的第一镜片的剖视结构示意图。
图2g是另一种实施例的第一段内的第一镜片的剖视结构示意图。
图3a是另一种实施例的多个镜片的结构示意图。
图3b是图3a的多个镜片设置于镜筒内的结构示意图。
图4a是一种实施例的摄像头的剖视结构示意图。
图4b是一种实施例的第一段内的第一镜片的剖视结构示意图。
图4c是一种实施例的摄像头的剖视结构示意图。
图5是一种实施例的摄像头的第一段的加工前后结构示意图。
图6a是一种实施例的终端的剖视结构示意图。
图6b是图6a中B处的局部剖视结构示意图。
图6c是图6b中一种实施例的结构示意图。
图6d是图6b中另一种实施例的结构示意图。
具体实施例
为使本申请实施例的目的、技术方案和优点更加清楚,申请人先定义少数术语以便下面的描述。“层叠”或“层叠设置”意味着:两个以上的元件(或层结构)之间的重叠布置的位置关系,具体而言,以其中一个元件为参照面,其它元件在这个参照面上的正投影至少部分与该元件重合,包括完全重合状态的层叠设置,当然也包括部分重合的状态,部分重合时,至少两个元件之间在垂直于参考面的方向上呈交错布置,至少两个元件(或层结构)之间可以保持间隙,也可以相互接触。
请参考图1a和图1b,在现有技术中,摄像头的多个镜片为圆形的完整的镜片,设置在终端上时,为尽可能的增大屏占比,减小摄像头的占用空间,显示面板30与镜筒相邻甚至紧靠设置,并尽可能的减小摄像头的尺寸,然而,经本申请人研究,此种设计还有设计空间可以进一步提升屏占比,并将提供的技术方案在本申请中予以公开。请参考图1c和图1d,可以看到采用本申请的技术方案后,显示面板30更靠近了移动终端的中框42,压缩了摄像头的占用空间,使得屏占比得以提升。在公开本申请的技术方案之前,先介绍摄像头所采用的镜片的结构,请参考图1e,以本申请实施例中的第一镜片21为例,镜片21通常包括光学有效区217和非光学有效区218,在摄像头成像过程中,光线折射并成像的区域为光学有效区,而在非光学有效区218,通常设置为光学有效区217提供安装的位置,不参与成像。
下面介绍本申请的摄像头的技术方案。
请参考图1d,本申请实施例提供的一种摄像头,与显示面板30设置在终端的同侧。具体的,请参考图2a,所述摄像头包括镜筒10和沿着所述摄像头的光轴A方向层叠设置在所述镜筒10内的多个镜片。所述镜筒10包括沿着所述光轴A方向排列且互连的第一段11和第二段12,收容在所述第一段11内的所述镜片为第一镜片21。请参考图2b,所述第一镜片21均包括入光面205、出光面206及连接在所述入光面205和所述出光面206之间的侧面。请参考图2c,所述侧面包括相连的第一面201和第二面202,所述第一面201与所述光轴A之间的垂直距离L1小于所述第二面202与所述光轴A之间的垂直距离L2。请参考图2d,所述第一段11的形状与所述第一镜片21的形状适配。结合图1c,所述第一段11之与所述第一面201配合的部分用于与所述显示面板30相邻设置,部分所述第二段12用于与所述显示面板30边缘层叠设置。
通过设置镜筒10的第一段11内的第一镜片21的第一面201与光轴A之间的垂直距离L1小于第二面202与光轴A之间的垂直距离L2,使得第一镜片21的结构是不完整的圆形,由于第一段11与第一镜片21的形状适配,使得第一面201对应的第一段11的位置处的显示面板30可以更靠近光轴A设置,从而进一步压缩了摄像头的尺寸,实现了减小摄像头占用空间的效果。
本实施例中,第一段11与第一镜片21适配的情形可以为:
1、第一段11的壁厚相同,从而可以实现图2d所示的结构,即第一段11的外壁包括相连的第一表面111和第二表面112,第一表面111与第一面201对应,第二表面112与第二面202对应。
2、第一段11的壁厚不同,与第一面201对应的第一表面111处的壁厚比与第二面202对应的第二表面112处的壁厚更薄,可使得设置显示面板30后,显示面板30可进一步更 靠近光轴A,压缩摄像头的整体尺寸。
3、1或2中的情形中,第一段11的内壁与第一镜片21的侧面四周均为紧贴设置,第一段11的第一表面111与显示面板30的端面紧贴设置,可进一步压缩摄像头的整体尺寸。
4、1或2中的情形中,第一段11的内壁与第一镜片21的第二面202可以为紧贴设置,而与第一面201可以具有间隙,该间隙内可以设置防眩光结构,本情形在后续实施例中将进一步说明。
5、除上述情形外,还可以有其他情形,例如,第一面201与第二面202均与第一段11的内壁之间设有间隙;或者,第一段11与第二面202对应的第二表面112处的壁厚比与第一面201对应的第一表面111处的壁厚更薄等。
本实施例中,第一面201可以为平面或者弧面,第二面202为圆弧面,光轴A为通过第二面202的圆心的直线。第一镜片21为凸透镜或者凹透镜,光轴A为凸透镜或凹透镜的法线。当第一面201为平面时,第一面201与光轴A之间的垂直距离L1为过光轴A一点与第一面201的平面的垂线的长度。当第一面201为弧面时,第一面201与光轴A之间的垂直距离L1为过光轴A一点与第一面201上最近一点的长度。优选的,请参考图2e,第一面201为弧面时,弧面为椭圆面,第一面201的椭圆面与第二面202的圆弧面之间为圆滑过渡。
请参考图1e和图2c,一种实施例中,所述第一镜片21包括光学有效区217及设置在所述光学有效区217外围的非光学有效区218,所述第一面201与所述光轴A之间的垂直距离L1大于等于所述光学有效区217的半径。换而言之,本实施例的第一镜片21设置的第一面201均位于非光学有效区218,非光学有效区218不参与成像,也不占用成像的光学有效区217的位置,能保证光线的折射路径完整,不影响成像。应当理解,当第一面201与光轴A之间的垂直距离L1等于光学有效区217的半径时,第一面201与光学有效区217的外周相切,为第一面201之最靠近光轴A的位置。
一种实施例中,请参考图2f,所述第一镜片21的数量为两个或两个以上,所有的所述第一镜片21的所述第一面201齐平共面。为便于说明,图2f的实施例中示出了3片镜片(第一镜片),并分别标注为第一镜片21、第二镜片22和第三镜片23,第二镜片22和第三镜片23与第一镜片21的结构类似,并共同具有一齐平共面的第一面201。本实施例中,第二镜片22和第三镜片23的镜片的凹凸程度可以不同,可根据光线成像的需要和具体设置,在此不做过多限定。通过设置第一镜片21的数量为两个或两个以上,且所有的第一镜片21齐平共面,与第一镜片21适配的镜筒10的第一段11的第一表面111是完整的表面,而不是现有技术中的台阶状的结构,故便于与显示面板30相邻甚至紧靠安装。
一种实施例中,请参考图1c和图2a,所述镜筒10还包括与所述第一段11连接的第二段12,所述第一段11和所述第二段12的连接处形成台阶面121,所述台阶面121用于定位所述显示面板30。具体而言,第一段11的第一表面111为一完整的表面,而台阶面121也为一完整的表面,第一表面111和台阶面121呈一夹角,优选该夹角为90°。显示面板30一般而言为平板结构,安装时显示面板30的端面与第一表面111相邻甚至紧靠,显示面板30的背面(即背向显示面的表面)与台阶面121相邻甚至紧靠,实现显示面板30的定位。
一种实施例中,请参考图2d,所述镜筒10内容置的镜片数量为5片,所述第一段11内容置的所述第一镜片21的数量为2片或3片(其中图2d示出的第一镜片21为3片,即第一镜片21/第二镜片22/第三镜片23,在第二段12内容置的镜片为2片,即第四镜片24和第五镜片25);或者,所述镜筒10内容置的镜片数量为6片,所述第一段11内容置的所述第一镜片21的数量为2片或3片;或者,所述镜筒10内容置的镜片数量为7片,所述第一段11内容置的所述第一镜片21的数量为3片或4片。本实施例中仅举例说明了一些摄像头的镜片的数量布局,当然根据摄像头的具体结构,还可以有其他布局形式。
一种实施例中,请参考图2f,第一镜片21的第一面201与光轴A平行。当第一镜片21的数量为两个或两个以上时,所有的齐平共面的第一镜片21的第一面201与光轴A平行。通过设置第一面201与光轴A平行,使得镜筒10的第一段11与所有的第一镜片21适配后,第一段11的第一表面111也与光轴A平行。而通常显示面板30的端面为与显示面垂直的平面,使得显示面板30的端面可以与第一段11的整个第一表面111相邻甚至紧靠安装,更有利于减小摄像头占用空间。
一种实施例中,请参考图2g,第一镜片21的第一面201与光轴A呈一夹角。当第一镜片21的数量为两个或两个以上时,所有的齐平共面的第一镜片21的第一面201与光轴A呈相同的夹角。该夹角的范围可以为1°~10°,如此设置是为了便于摄像头的制造和装配。具体而言,设置第一面201与光轴A呈一夹角,形成拔模角度。在制造第一镜片21和镜筒10的第一段11时,设置模具具有一相同的夹角。在模具上制作完成第一镜片21和镜筒10的第一段11后,便于将第一镜片21和镜筒10的第一段11从模具上拆卸下来。此外,在摄像头装配时,也便于第一镜片21安装到第一段11内。
一种实施例中,请参考图3a和图3b,并结合图1d,所述第一镜片21的所述侧面还包括第三面203。所述第三面203与所述第一面201相背设置,所述第二面202连接在所述第三面203和所述第一面201之间。所述第三面203与所述光轴A之间的垂直距离L3小于所述第二面202与所述光轴A之间的垂直距离L2。通过设置于第一面201相背的第三面203,且第三面203也与第一面201类似。第三面203与光轴A之间的垂直距离L3小于第二面202与光轴A之间的垂直距离L2,使得镜筒10的第一段11与第三面203适配的第三表面113到光轴A的垂直距离小于第二表面112到光轴A的垂直距离。当摄像头装配到终端上时,第三表面113与中框42相邻甚至紧靠设置。可进一步压缩摄像头尺寸,减小占用空间,使得显示面板30可进一步增大尺寸。
与第一面201类似的,第三面203与所述光轴A之间的垂直距离L3大于等于所述光学有效区217的半径。当第一镜片21为两个或两个以上时,所有的第一镜片21的第三面203齐平共面;第三表面也可以呈平面或弧面。
一种实施例中,请参考图2f和图2g,所述第一面201和所述第三面203沿所述光轴A对称设置。其中,图2f的实施例示出的第一面201和第三面203既可以为中心对称设置,也可以为镜像对称设置。图2g的实施例示出的第一面201和第三面203为镜像对称设置。故本实施例通过设置第一面201和第三面203沿光轴A对称设置,使得第一面201和第三面203的形状相同,第一面201到光轴A的垂直距离L1和第三面203到光轴A的垂直距离L3相同,便于制造。
在摄像头成像过程中,常会有炫光鬼影(flare)现象,经研究上述问题主要是光学镜片中非光学有效区218处的光线进入到光学有效区217后造成。为了避免炫光鬼影现象,本申请提供了一些实施例如下:
一种实施例中,请参考图4a,所述第一段11的内壁设有第一遮光膜124。一种实施例中,所述第一遮光膜124与所述第一镜片21的所述第一面201相邻设置。另一种实施例中,所述第一遮光膜124与所述第一镜片21的所述第一面201和第三面203均相邻设置。由于非光学有效区218虽然不参与成像,但如果有光线通过,也会对光学有效区217的光线造成一定的干扰。因此,通过在第一段11的内壁设第一遮光膜124,第一遮光膜124可以遮挡光线。减少第一面201和/或第三面203处的非光学有效区218的光线对光学有效区217的影响,提升光线成像的效果。
具体而言,第一遮光膜124可以为在第一段11的内壁涂布的一涂层。例如使用涂布工艺涂布的黑色涂层,或者使用粘贴工艺粘贴的一膜层结构,或者使用电镀工艺制作的一膜层结构等均可。当第一镜片21为两个或两个以上时,在第一段11的内壁上设置的第一遮光膜124覆盖所有的第一镜片21的第一面201和/或第三面203的位置。当然,第一遮光膜124可以完整的覆盖第一段11的全部内壁。
一种实施例中,请参考图4b,所有的所述第一镜片21的在所述第一面201和/或所述第三面203设有第二遮光膜213。一种实施例中,第一镜片21在第一面201设第二遮光膜213;另一种实施例中,第一镜片21在第一面201和第三面203均设第二遮光膜213。当第一镜片21为多个时,为便于描述,图4b所示出的3个镜片的实施例中,与第一镜片21类似的,第二镜片22也在第一面201和/或第三面203设第二遮光膜223,第三镜片23也在第一面201和/或第三面203设第二遮光膜233。本实施例中通过在第一镜片21上设第二遮光膜213,其功能与前述的在第一段11内壁设第一遮光膜214的实施例类似。不同的是,本实施例中第二遮光膜213设置在第一镜片21上。相对于在第一段11内壁制作第一遮光膜214而言,第二遮光膜213仅需制作在第一镜片21上,可减小第二遮光膜213的用量,节约成本。在第一镜片21上制作第二遮光膜213的工艺与第一遮光膜214的制作工艺类似,参考即可。
一种实施例中,请参考图2c、图2f和图3a,所有的所述第一镜片21的所述第一面201和/或所述第三面203的表面粗糙度高于所述第二面202的表面粗糙度。具体而言,在图2c的实施例中,第一镜片21的第一面201的表面粗糙度高于第二面202的表面粗糙度;在图3a的实施例中,第一镜片21的第一面201和第三面203的表面粗糙度高于第二面202的表面粗糙度。由于第一镜片21通常为玻璃或者树脂材质,将其某个表面的表面粗糙度提高,形成类似毛玻璃的结构,可以起到遮光效果。因此,本实施例中设置第一镜片21的第一面201和/或第三面203的表面粗糙度比第二面202更高,可以起到遮光效果。
为了进一步减小摄像头的占用空间,一种实施例中,请参考图4c,并结合图2c或图3a,所述第一段11采用双料注塑成型工艺制作,所述第一段11与所述第一面201和/或所述第三面203相对的位置设置为柔性材质13,所述第一段11与所述第二面202相对的位置设置为刚性材质,所述柔性材质13具有弹性。
本实施例中,第一段11的刚性材质的部分用于支撑第一镜片21,柔性材质13部分具 有弹性,可以弹性伸缩,从而可以紧密贴合在第一镜片21上,进一步减小镜筒10的第一段11的占用空间。此外,柔性材质13可以为遮光膜,以为第一镜片21提供遮光功能。
本实施例中,所述第一段11的所述柔性材质13上还设有缓冲材质。缓冲材质可以为泡棉等结构,其作用是当终端跌落时,泡棉起到缓冲的作用,避免摄像头与显示面板30或中框42等撞击而损坏。
请参考图5,并结合图2c或图3a,本申请实施例的第一镜片21的制作工艺可以为切割工艺,可以先提供完整的圆形的第一镜片21,通过切割而得到第一面201和/或第三面203,切割掉的部分为标号215所示。镜筒10的第一段11可以采用铸造工艺制作,形成与第一镜片21适配的形状。相对于圆形的第一段11,本实施例的第一段11相当于切割掉了一部分,即图5中标号115所示。最终形成的第一镜片21内包含一成像区域80,成像区域80与摄像头后方设置的CCD或者CMOS的图像传感器的形状对应,通常为矩形。
请参考图6a至图6d,本申请实施例还提供一种终端,包括显示面板30、中框42和本申请各种实施例中所述的摄像头,所述显示面板30设置于所述中框42围设的空间内;所述摄像头与所述显示面板30同侧设置,所述摄像头的镜筒10的第一段11与所述显示面板30相邻设置。
本实施例通过设置显示面板30与镜筒10的第一段11相邻设置,由于第一段11与第一镜片21形状适配,且第一镜片21的第一面201与光轴A的垂直距离L1小于第二面202与光轴A的垂直距离L2,使得摄像头的第一段11的尺寸减小,显示面板30可以设置的更靠近中框42,提高了显示面板30在终端上的面积占比(屏占比),便于实现窄边框和全面屏的结构设计。
一种实施例中,请参考图6b,所述摄像头的镜筒10的第二段12与所述中框42相邻设置,所述第一段11与所述中框42之间具有第一空隙45。优选的,第二端12与中框42紧靠设置。本实施例中,将第二段12与中框42相邻甚至紧靠设置,使得摄像头整体更靠近中框42,使得设置的显示面板30可以更靠近中框42设置,有利于提高显示面板30的屏占比。
一种实施例中,请参考图6b和图6c,所述第一空隙45内设有填充物51,所述填充物51用于为所述第一段11提供支撑。本实施例中,通过设置填充物51可以支撑第一段11,使得第一段11保持在预设的位置。此外,填充物51还可以具有缓冲功能,当终端跌落时,第一段11在填充物51的支撑下避免硬性撞击,避免摄像头损坏。填充物51也可以为泡棉等。
请参考图6b和图6d,所述中框42上设有弹片53,所述弹片53与所述第一段11抵持。本实施例中,弹片53同样可以用于支撑第一段11,当终端跌落时,弹片53弹性变形而为第一段11提供缓冲。此外,弹片53还可以提供电连接的功能,即可以将摄像头上的静电接入中框而消除静电,避免摄像头上的静电积聚而影响图像传感器的成像。
图6a至图6d中,终端上还设有保护面板41,保护面板41优选的为玻璃,具有良好的透明度、强度和刚度。
本申请实施例的终端可以为移动终端,如智能手机、平板电脑、移动助理、手提式笔记本电脑等,当然,也可以为固定的终端,如自动柜员机、显示器等。如图1b和图1d所 示的智能手机的实施例中,通过使用本申请实施例的技术方案,将摄像头的尺寸减小后,显著的增加了智能手机的显示面板30的屏占比,窄边框和全面屏的效果更好。
以上对本申请实施例所提供的一种摄像头及终端进行了详细介绍,本文中应用了具体个例对本申请的原理及实施例进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施例及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。

Claims (15)

  1. 一种摄像头,与显示面板设置在终端的同侧,其特征在于,所述摄像头包括镜筒和沿着所述摄像头的光轴方向层叠设置在所述镜筒内的多个镜片,所述镜筒包括沿着所述光轴方向排列且互连的第一段和第二段,收容在所述第一段内的所述镜片为第一镜片,所述第一镜片包括入光面、出光面及连接在所述入光面和所述出光面之间的侧面,所述侧面包括相连的第一面和第二面,所述第一面与所述光轴之间的垂直距离小于所述第二面与所述光轴之间的垂直距离,所述第一段的形状与所述第一镜片的形状适配,所述第一段之与所述第一面配合的部分用于与所述显示面板相邻设置,部分所述第二段用于与所述显示面板边缘层叠设置。
  2. 如权利要求1所述的摄像头,其特征在于,所述第一镜片包括光学有效区及设置在所述光学有效区外围的非光学有效区,所述第一面与所述光轴之间的垂直距离大于等于所述光学有效区的半径。
  3. 如权利要求2所述的摄像头,其特征在于,所述第一镜片的数量为两个或两个以上,所有的所述第一镜片的所述第一面齐平共面。
  4. 如权利要求3所述的摄像头,其特征在于,所述侧面还包括第三面,所述第三面与所述第一面相背设置,所述第二面连接在所述第三面和所述第一面之间,所述第三面与所述光轴之间的垂直距离小于所述第二面与所述光轴之间的垂直距离。
  5. 如权利要求4所述的摄像头,其特征在于,所述第一面和所述第三面沿所述光轴对称设置。
  6. 如权利要求1至5任一项所述的摄像头,其特征在于,所述第一段的内壁设有第一遮光膜,所述第一遮光膜与所述第一镜片的所述第一面和/或所述第三面相邻设置。
  7. 如权利要求1至6任一项所述的摄像头,其特征在于,所有的所述第一镜片的在所述第一面和/或所述第三面设有第二遮光膜。
  8. 如权利要求1至7任一项所述的摄像头,其特征在于,所有的所述第一镜片的所述第一面和/或所述第三面的表面粗糙度高于所述第二面的表面粗糙度。
  9. 如权利要求1至8任一项所述的摄像头,其特征在于,所述第一段与所述第一面和/或所述第三面相对的位置设置为柔性材质,所述第一段与所述第二面相对的位置设置为刚性材质,所述柔性材质具有弹性。
  10. 如权利要求9所述的摄像头,其特征在于,所述第一段的所述柔性材质上还设有缓冲材质。
  11. 如权利要求1所述的摄像头,其特征在于,所述第一段和所述第二段的连接处形成台阶面,所述台阶面用于定位所述显示面板。
  12. 一种终端,其特征在于,包括显示面板、中框和如权利要求1至11任一项所述的摄像头,所述显示面板设置于所述中框围设的空间内,所述摄像头与所述显示面板同侧设置,所述摄像头的镜筒的第一段与所述显示面板相邻设置。
  13. 如权利要求12所述的终端,其特征在于,所述摄像头的镜筒的第二段与所述中框相邻设置,所述第一段与所述中框之间具有第一空隙。
  14. 如权利要求13所述的终端,其特征在于,所述第一空隙内设有填充物,所述填充物用于为所述第一段提供支撑。
  15. 如权利要求13所述的终端,其特征在于,所述中框上设有弹片,所述弹片与所述第一段抵持。
PCT/CN2018/108020 2018-09-27 2018-09-27 摄像头和终端 WO2020061925A1 (zh)

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JP2021510185A JP7074404B2 (ja) 2018-09-27 2018-09-27 カメラおよび端末
PCT/CN2018/108020 WO2020061925A1 (zh) 2018-09-27 2018-09-27 摄像头和终端
US17/280,363 US11297175B2 (en) 2018-09-27 2018-09-27 Camera and terminal
CN201880097329.0A CN112703722B (zh) 2018-09-27 2018-09-27 摄像头和终端
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