KR102010230B1 - Single Lens Camera for three dimensional image - Google Patents

Abstract

The present invention relates to a monocular stereoscopic camera for capturing a stereoscopic image of a subject, and includes a first imaging lens assembly 10, a prism P, a third imaging lens assembly 31 and 41, a first camera 30, and It includes a second camera 40, and relates to a monocular stereoscopic camera that can easily and quickly adjust the convergence point and the horizontal height of the image through the position movement and rotation of the prism (P).

Description

Single Lens Camera for three dimensional image}

The present invention relates to a monocular stereoscopic camera for capturing a stereoscopic image of a subject, and more particularly, a convergence point on two left and right sides and a relative on two left and right images captured by the camera quickly and precisely at a shooting site. A miniaturized monocular stereoscopic camera that can easily align the optical axes of two cameras when adjusting the horizontal height or manufacturing a camera.

A stereoscopic camera is a camera that can simultaneously acquire a left eye image and a right eye image of a subject using two cameras. A typical stereoscopic camera is a left eye camera that acquires a left eye image of a subject and a right eye camera that acquires a right eye image of a subject. Consists of.

1 is a schematic diagram of a stereoscopic camera of the prior art. Referring to FIG. 1, light of the subject 1 passes through the main lens 6, and light passing through the half mirror H is imaged by the left eye camera 4 to obtain a left eye image 5, and the half mirror The light reflected by (H) is imaged in the right eye camera 2 to obtain the right eye image 3. The images 3 and 5 obtained by the left eye camera 4 and the right eye camera 2 may have a binocular parallax d to implement a stereoscopic image.

In order for the stereoscopic camera to acquire a clear stereoscopic image, the right eye image 3 and the left eye image 5 should have binocular parallax. Furthermore, the stereoscopic camera must be able to quickly and easily adjust the horizontal angle of the right eye / left eye image and the right eye / left eye image obtained.

The three-dimensional effect is that the subject is disposed to protrude forward from the screen or back from the screen, and the image image is expressed in three dimensions. This stereoscopic feeling can be adjusted by changing the convergence point of the photographer. The convergence point is a point where the virtual optical axis center of the left eye camera 4 and the virtual optical axis center of the right eye camera 2 meet each other in the virtual space. . When the photographer adjusts the convergence point to the main subject, the main subject is placed in the same position as the screen, and the other subject located in front of the main subject is expressed as protruding from the screen, and another subject located behind the main subject is It is represented as being placed back behind the screen. Therefore, the convergence point adjustment is essential for the photographer to shoot a three-dimensional image.

On the other hand, when the horizontal heights of the right eye image and the left eye image do not coincide, it is impossible to obtain a stereoscopic image having binocular parallax, or a stereoscopic image having severe visual fatigue and low quality is obtained. In other words, adjusting the convergence point, the horizontal height of the right eye image and the left eye image is a necessary control element for acquiring a stereoscopic image, and if it is not controlled, it is difficult for the observer who observes the acquired image or cannot give a stereoscopic effect. And dizziness.

Prior art stereo cameras used complex mechanical configurations and components to adjust the convergence point and the horizontal height of the image. The applicant has disclosed a mechanical configuration for adjusting the convergence point and the horizontal height of the image in the Republic of Korea Patent No. 10-1596146. Specifically, referring to FIG. 2, the light separated from the mirror box 7 mounted with the half mirror is imaged on the first camera 8 and the second camera 9, respectively. In order to adjust the convergence point, the first camera ( 8) should be rotated about the Z 'axis or the second camera 9 should be rotated about the Z axis. To this end, the Republic of Korea Patent No. 10-1596146 is equipped with a plurality of gonio (G) for rotating the first camera 8 and the second camera (9). In addition, to adjust the horizontal height of the image, the first camera 8 should be rotated about the Y 'axis, or the second camera 9 should be rotated about the Y axis. In order to adjust the image horizontal height of the first camera 8 or the second camera 9, a plurality of Gonio stages are required, and a plurality of linear stages for correcting the movement error caused by the rotation of the camera is required. .

Since a stereoscopic camera of the prior art uses a plurality of rotation / moving devices, many parts have to be used as shown in FIG. 2, and the parts are expensive and have limitations in miniaturization. do. The subject changes every moment, and it is very difficult for the photographer to obtain a stereoscopic image rich in stereoscopic feeling and vivid while rotating / moving the first camera 8 and the second camera 9, respectively.

Therefore, it is possible to miniaturize, but it is necessary to control the convergence point and the image height in a fast and easy way at the shooting site, and a new concept of a monocular stereoscopic camera that can quickly align the two optical axes when manufacturing the camera is desperately needed. It is true.

Republic of Korea Patent No. 10-1596146 (monocular stereoscopic camera)

The present invention has been proposed to solve the above problems, it is possible to control the horizontal height of the convergence point and phase quickly and easily by one operation, to align the optical axis, can be applied to a miniature product stereoscopic stereoscopic camera The purpose is to provide.

In order to solve the above problems, the monocular stereoscopic camera according to the present invention includes a prism (P) and a prism (P) for refracting or reflecting light rays passing through the first imaging lens assembly 10 and the first imaging lens assembly 10. A third imaging lens including a third imaging lens assembly 31 for imaging a portion of the rays refracted or reflected by the first camera 30, and a third imaging lens for imaging the remaining rays refracted or reflected by the prism P A second camera 40 comprising an assembly 41.

The prism P is moved forward and backward along the longitudinal direction X in which the first imaging lens assembly 10 is disposed, so that a convergence point which is a convergence point of the third imaging lens assemblies 31 and 41 is obtained. In addition to being adjustable, the horizontal height of the image formed on the third imaging lens assembly 31 or 41 as the prism P is rotated about the longitudinal axis X in which the first imaging lens assembly 10 is disposed. Applicants have found that can be controlled. That is, the present invention adjusts the convergence point and the image horizontal height through one operation of rotating or moving the prism P forward and backward.

In order to adjust the convergence point and the horizontal height of the image, the prism P may use a prism having an isosceles triangle shape.

The equilateral sides of the prism P may be disposed to face the third imaging lens assembly 31 of the first camera 30 or the third imaging lens assembly 41 of the second camera 40, respectively. .

The monocular stereoscopic camera according to the present invention can easily and easily adjust (1) convergence point, (2) horizontal height and (3) align optical axis without manipulating and rotating the camera itself. Suitable for miniaturization

Therefore, a high quality stereoscopic image expressing a rich three-dimensional effect can be obtained by easily and quickly controlling a moving subject in a shooting scene according to a situation.

1 and 2 is a configuration diagram for explaining a monocular stereoscopic camera of the prior art.
3 is a block diagram of a monocular stereoscopic camera according to a first embodiment of the present invention.
4 to 7 are images simulating convergence point values according to positional changes of an isosceles triangular prism and changes in an isosceles cabinet.
FIG. 8A is an enlarged view of an isosceles triangular prism portion in the image of FIG. 5, and FIG. 8B is an enlarged view of an isosceles triangular prism portion in the image of FIG. 6. C) is an enlarged view of an isosceles triangular prism portion in the image of FIG. 7.
9 is a block diagram of a monocular stereoscopic camera according to a third embodiment of the present invention.
FIG. 10 is a perspective view of a monocular stereoscopic camera according to a third embodiment equipped with the optical configuration shown in FIG. 9.
FIG. 11 is an exploded perspective view of the monocular stereoscopic camera shown in FIG. 9.
FIG. 12 is an exploded perspective view illustrating the mirror box 320 and the prism P shown in FIG. 10.
FIG. 13 is an exploded perspective view illustrating the gonio stage, which is the rotating unit 322 illustrated in FIG. 10.
14 is an enlarged view illustrating the second camera 340 illustrated in FIGS. 10 and 11.
15 is a cross-sectional view of the body, the second connection member, and the image pickup unit shown in FIG. 14.

In the present specification, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same number as possible even though they are displayed on different drawings.

On the other hand, the meaning of the terms described herein will be understood as follows.

Singular expressions should be understood to include plural expressions unless the context clearly indicates otherwise, and the terms “first”, “second”, etc. are used to distinguish one component from another. The scope of the rights shall not be limited by these terms.

It is to be understood that the term "comprises" or "having" does not preclude the existence or addition of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

The term "at least one" should be understood to include all combinations which can be presented from one or more related items. The term “and / or” should be understood to include all combinations that can be presented from one or more related items.

When a component is referred to as being "connected or disposed" to another component, it should be understood that other components may be present in the middle, although the components may be directly connected or installed. On the other hand, when a component is referred to as "directly connected or installed" to another component, it should be understood that no other component exists in the middle. On the other hand, other expressions describing the relationship between the elements, that is, "between" and "immediately between" or "neighboring to" and "directly neighboring to", and the like, should be interpreted as well.

The "stereoscopic image" described below includes not only a stereoscopic image of a stationary subject, but also a moving image connecting a dynamic stereoscopic image of a moving subject, and the "~ imaging lens assembly" may be formed as one lens, but may include two or more lenses. It can also be done.

As described above, the present invention provides a monocular stereoscopic camera that can be mounted on a miniaturized product by simplifying the internal mechanical structure while being able to adjust the convergence point, adjust the horizontal height of the image, and align the optical axis by manipulating only a prism. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

(1) first Example

3 is a block diagram of a monocular stereoscopic camera according to a first embodiment of the present invention. Referring to FIG. 3, the monocular stereoscopic camera 100 of the present invention includes a first imaging lens assembly 10, a prism P, third imaging lens assemblies 31 and 41, and a first camera 30. And a second camera 40.

The first imaging lens assembly 10 converges light from the subject 8. Some of the light rays passing through the first imaging lens 10 are refracted or reflected by a prism, pass through the third imaging lens assembly 31, and are imaged on the imaging surface 36 of the first camera 30. The remaining rays refracted or reflected by the prism pass through the third imaging lens assembly 41 and are imaged on the imaging surface 46 of the second camera 40.

As the prism P, it is preferable to use a prism having an isosceles triangle shape to adjust the convergence point or the horizontal height of the image. Orthogonal prisms, which are widely used in the field of cameras, can be used simply to change the light path or to separate the light, but not to adjust the convergence point or adjust the horizontal height of the image. Here, an isosceles triangular prism refers to a prism having two triangles having the same length and having a triangle shape having the same base angle of two sides having the same length (hereinafter, referred to as 'isosceles').

The isosceles of the isosceles triangular prism may face the third imaging lens assembly 31 of the first camera 30 or the third imaging lens assembly 41 of the second camera 40, respectively. That is, one side of the other side (hereinafter, referred to as “two sides”) faces the first imaging lens assembly 10, and the light incident on the two sides is separated by refraction or reflection through the equilateral sides.

On the other hand, the simulation (FUSION-360 program) confirmed that the convergence point can be adjusted using an isosceles triangular prism. 4, 5, and 7 are images simulating the change of the convergence point by changing the angle of the interior angle of the isosceles triangular prism is equilateral. You can see how the convergence points simulated for each image vary with the isosceles cabinet.

4 to 7 are images obtained by measuring convergence point values according to changes in position of an isosceles triangular prism and changes in an isosceles cabinet. FIG. 8A is an enlarged view of an isosceles triangular prism portion in the image of FIG. 5, and FIG. 8B is an enlarged view of an isosceles triangular prism portion in the image of FIG. 6. C) is an enlarged view of an isosceles triangular prism portion in the image of FIG. 7.

4 to 8, the equilateral angle (θ ₁ ), the optical path separation distance L ₁ , the optical path distance L ₂ , the incident optical path and the equilateral angle (θ ₂ ) and the convergence point values through the respective simulations. When compared with Table 1 below.

Reference
drawing Equilateral
cabinet
(θ ₁ ) Light path
Separation
(L ₁ ) Light path
(L ₂ ) With the incident light path
Equilateral angle
(θ ₂ ) Convergence
Point value [Figure 4] 60 ° 16.000 8 30 ° - 5
Fig. 8 (A) 58 ° 14.638 8 32 ° 152.859 6
Figure 8 (B) 58 ° 12.808 7 32 ° 133.751 7
Figure 8 (C) 57 ° 14.018 8 33 ° 101.964

In the present exemplary embodiment, a light beam passing through the first imaging lens assembly 10 and reflected or refracted through a prism is imaged on the first camera 30 and the second camera 40, respectively. Corresponds to a monocular stereoscopic camera that acquires stereoscopic images through images. That is, the convergence point refers to the point where the virtual optical axes of the first camera 30 and the second camera 40 intersect (converge), and the convergence point values in Table 1 refer to the prism P. The distance from the junction of equilateral sides to each other is shown.

As shown in FIG. 4, in the case of an equilateral triangular prism having an equilateral angle of 60 ° as a result of the simulation, convergence points are set to infinity unless the optical axes of the first and second cameras are artificially adjusted and installed. Comparing Figs. 8A and 8B, the isosceles triangular prisms used in Figs. 8A and 8B have the same shape and have an equilateral inner angle θ ₁ and an incident light path and an isosceles angle. (θ ₂ ) is the same. The difference between FIGS. 8A and 8B is different from the optical path separation distance L ₁ and the optical path distance L ₂ , but the optical path separation distance L ₁ and the optical path distance L ₂ of FIG. 8B are different from each other. ) Is relatively smaller than FIG. 8 (A). That is, when the isosceles triangular prism is moved in the direction in which the light is incident (left direction in FIG. 8) in FIG. 8A, the optical path separation distance L ₁ and the optical path distance L ₂ are shortened to FIG. 8B. Becomes equal to). Accordingly, it can be seen that the convergence point value of FIG. 8A can be adjusted by moving the isosceles triangular prism along the direction in which the light beam is incident.

On the other hand, when comparing (A) and (C) of FIG. 8, the isosceles triangular prism used in FIG. 8C has an inner angle of 57 degrees, which is smaller than that of FIG. By changing the isosceles, the convergence point value can be controlled, as well as the binocular disparity (stereoscopic value) can be controlled by changing the angle θ ₂ of the incident light path and the isosceles side.

Through the simulation results described above, it is confirmed that the convergence point value can be adjusted by changing the position of the isosceles triangle prism and changing the isosceles angle, and in the case of the isosceles angle change, binocular parallax can be controlled.

3, when the prism P is moved along the longitudinal direction in which the first imaging lens assembly 10 is disposed, the convergence point value can be adjusted, and the equilateral angle of the prism P can be changed. By controlling the convergence point value and binocular disparity.

Furthermore, it has been found that when the prism P is rotated about the longitudinal axis on which the first imaging lens assembly 10 is disposed, the horizontal height of the image formed on the third imaging lens assembly 31 or 41 can be adjusted.

The movement and rotation of the prism P is a phenomenon in which the angle of refraction and reflection in the inside of the prism P having an isosceles triangle shape is minutely changed while the light rays incident on the two sides are separated into equilateral sides. In order to adjust the convergence point and adjust the horizontal height of the image, it is preferable that the inner side of the prism P is in contact with the angle of more than 30 ° but less than 60 °, but the total reflection critical angle range of the medium can be varied depending on the material of the prism. Therefore, it is not limited thereto. However, if the inner side of the prism P is in contact with more than 60 °, it should be manufactured or changed by changing the installation angles of the cameras 330 and 340 in order to set the convergence point. If it exceeds 30 °, there is a limit to fine tuning the convergence point value. In addition, the prism (P) has the advantage that the color difference of the separated phase is kept the same, unlike the conventional half-mirror used.

Since the optical structure of the monocular stereoscopic camera 100 according to the present invention separates the left and right stereoscopic images using a prism and adjusts the horizontal height of the convergence point and the image, the first imaging lens assembly 10 and the third imaging lens assembly The arrangement of (31, 41) may appear in the form of a Y-shaped rig.

The third imaging lens assembly 31 and 41 may be selected from at least one of an achromatic lens and an apochromatic lens, by physically combining an achromatic lens or an apochromatic lens. Can also be used. Achromatic lenses overlap two lenses with different refractive indices, which can reduce chromatic aberration. Apochromatic lenses overlap three or more lenses having different refractive indices, thereby further reducing chromatic aberration. Herein, the apochromatic includes a super achromatic lens and a hyper apochromatic lens which are manufactured by overlapping four or more lenses.

(2) second Example

9 is a block diagram of a monocular stereoscopic camera according to a second embodiment of the present invention. Since the monocular stereoscopic camera 200 according to the second embodiment uses the same name for the same configuration as the monocular stereoscopic camera 100 described in the first embodiment, the second imaging lens assembly 20 described below is used. All other things should be interpreted in the same sense.

Referring to FIG. 9, the monocular stereoscopic camera 200 according to the second embodiment further includes a second imaging lens assembly 20 between the first imaging lens assembly 10 and the prism P. Astigmatism may occur because the optical axes between the first imaging lens assembly 10 and the third imaging lens assemblies 31 and 41 of the two cameras 30 and 40 are different from each other, and the acquired stereoscopic image is blurred and blurred. The phenomenon appears.

The second imaging lens assembly 20 may solve the problems caused by astigmatism by changing the focal positions of the third imaging lens assemblies 31 and 41 of the two cameras 30 and 40. Since it is disclosed in Republic of Korea Patent No. 1596146, detailed description thereof will be omitted. Meanwhile, the second imaging lens assembly 20 may be disposed between the prism P and the third imaging lens assembly 31 and 41, respectively, as shown in FIG. 9. No. 1596416.

(3) third Example

10 is a perspective view of a monocular stereoscopic camera according to a third embodiment equipped with the optical configuration shown in FIG. 9, and FIG. 11 is an exploded perspective view of the monocular stereoscopic camera shown in FIG. 9. The monocular stereoscopic camera 300 according to the third embodiment has the same optical configuration of the monocular stereoscopic camera 200 described in the second embodiment therein, and the same name is used for the same configuration. All other things except for are to be interpreted in the same sense.

10 and 11, in the monocular stereoscopic camera 300 according to the third embodiment of the present invention, a first imaging lens assembly 10 is mounted on a main lens housing 310, and a mirror box ( The prism P is fixed to 320. The third imaging lens assembly 31 is mounted on the first camera 330, and the third imaging lens assembly 41 is mounted on the second camera 340.

As described above, the horizontal position of the convergence point and the image can be precisely adjusted by the movement along the X axis of the prism P and the rotation of the X axis about the center axis. The mechanical configuration of the movement and rotation of the prism P will be described in detail. I would like to.

FIG. 12 is an exploded perspective view illustrating the mirror box 320 and the prism P shown in FIG. 10. Referring to FIG. 12, the mirror box 320 may include a fixing device 321 for fixing the position of the prism P and a rotating means 322 for rotating the prism P.

Fixing device 321 is fixed to the prism (P) facing the back surface of the prism (P), so that the light beam is incident on the back surface of the prism (P), the fixing device 321 is formed with a circular through hole Can be. On the other hand, the lower surface of the fixing device 321 may be coupled to the rotating means 322, when the rotating means 322 is fixed to the fixing device 321, and finally the prism (P) to the central axis X axis Will rotate.

For example, the rotation means 322 may use the gonio stage disclosed in the Republic of Korea Patent No. 1234346, but is not limited thereto.

FIG. 13 is an exploded perspective view illustrating the gonio stage, which is the rotating unit 322 illustrated in FIG. 10. Referring to FIG. 13, the gonio stage, which is the rotating means 322, has an upper base 322G facing a curved surface on an upper surface of the lower base 322B, and the upper base 322G is based on the lower base 322B position. To move the curve. The lower surface of the upper base 322G is coupled with the connecting portion 322C, and the connecting portion 322C is connected with the movement control member 322A penetrating the lower base 322B. Therefore, the photographer can curve the upper base 322G by manipulating the movement of the movement control member 322A. On the other hand, the connecting portion 322C moves along the guide portion 322H formed inside the lower base 322B.

A first fixing hole 322F is formed at one side of the upper base 322G, and a second fixing hole 322D facing the first fixing hole 322F is formed at one side of the lower base 322B. It is. A fixing member 322E may be inserted into the first fixing hole 322F and the second fixing hole 322D to fix the position of the upper base 322G.

The lower surface of the rotating means 322 may be coupled to the movement means 323 for moving (forward and backward) the prism P along the X axis. The moving means 323 includes, for example, a linear stage, but is not limited thereto. Referring to FIG. 12, the moving means 323 includes an upper frame 323A, a lower frame 323B, a connecting member 323C, and a control module 323D.

The upper frame 323A moves integrally with the lower base 322B of the rotating means 322. The lower frame 323B may face the upper frame 323A. The connecting member 323C connects the upper frame 323A and the lower frame 323B, but a guide hole is formed in the connecting member 323C, and a protrusion that is inserted into the guide hole and rolls into the upper frame 323A. ) May be formed. The control module 323D rolls the protrusion of the upper frame 323A to finely move the upper frame 323A along the X axis.

Additionally, the monocular stereoscopic camera 300 according to the third embodiment of the present invention may further include a lens box 324 on which the second imaging lens assembly 20 is mounted. The second imaging lens assembly may be disposed to face the two sides of the prism P.

The prism P is rotated about the X axis through the rotating means 322 described above to adjust the horizontal height of the left and right two images, and the prism P is moved along the X axis through the moving means 323. To adjust the convergence point. Conventional convergence point adjustment and horizontal height adjustment of the image uses a plurality of control parts for adjusting the relative position of the first camera and the second camera, the monocular stereoscopic camera 300 of the present invention is a prism (P) You can adjust the convergence point and the horizontal height with a simple and quick 1 operation. If only one rotating means 322 and one moving means 323 are disposed below the prism P, the horizontal height of the convergence point and the image can be adjusted, so that many parts are not required as in the prior art and can be miniaturized. . In addition, the position of the rotating means 322 and the moving means 323 is disposed close up and down to allow the photographer to quickly adjust the convergence point and the horizontal height of the image.

FIG. 14 is an enlarged view of the second camera illustrated in FIGS. 10 and 11, and FIG. 15 is a cross-sectional view of the body, the second connection member, and the imaging unit illustrated in FIG. 14.

The third imaging lens assembly may be mounted inside the second camera 340, and light rays passing through the third imaging lens assembly may be imaged on the imaging surface (including the image capturing unit 342 but not shown in the figure). have.

In this case, the photographer may adjust the position error alignment of the second camera 340, the position error alignment of the third imaging lens assembly, and the convergence point by simply adjusting the inclination of the imaging unit 342. The second camera 340 can easily control them without using bulky and heavier parts for miniaturization.

In detail, the second camera 340 may include a body 341, an imaging unit 342, second connection members 343a to 343d, and an elastic member S. The body 341 forms a skeleton of the second camera 340 and may mount the third imaging lens assembly. The imaging unit 342 is spaced apart from the body 341 to face each other, and light rays passing through the third imaging lens assembly are formed.

The second connection members 343a to 343d adjust the inclination of the imaging unit 342 facing the body 341 by adjusting the separation distance between the body 341 and the imaging unit 342. For example, the body 341 and the imaging unit 342 may have a quadrangular shape, and through holes may be formed at each corner thereof. The second connection members 343a to 343d may have a threaded shape and may pass through holes formed in the body 341 and the image capturing unit 342 to adjust a separation distance between the body 341 and the image capturing unit 342. In addition, a plurality of springs S may be disposed between the body 341 and the imaging unit 342 so that the inclined imaging unit 342 may be restored to its original position.

Referring to Figures 10 and 14, summarize the functions that can be achieved through tightening / loosening of the second connecting member (243a to 243d) is shown in Table 2 below.

NO. Control content function One 243a, 243b, 243c, 243d
Tighten / Unscrew Adjusting the distance between the third imaging lens assembly and the imaging surface, adjusting the position error of the first camera, the second camera, correction of manufacturing errors of the third imaging lens assembly of the left and right cameras 2 243a, 243b or 243c, 243d
Tighten / Unscrew  Tilt error correction optical axis shift of first and second camera 3 243a, 243d or 243b, 243c
Tighten / Unscrew Adjust convergence point, move optical axis

In lens manufacturing, it would be impossible to produce a lens with exactly the same physical and optical properties. That is, the third imaging lens assembly mounted on the first camera 330 and the second camera 340 is inevitably different from each other in physical and optical properties, and correcting the NO. 1 control. In addition, without changing the position of the third imaging lens assembly, the first camera 330 and the second camera 340 directly, the NO. The control of 1 enables position error correction and optical axis movement.

In order to correct the difference between the heights of the images of the two cameras, the prism P may be rotated about the X axis to finely adjust the height of the image. Can be adjusted by 2. That is, the photographer is allowed to use the NO. After adjusting the relative height of the two left and right roughly through the 2, the prism (P) can be rotated about the X axis to precisely adjust the height of the image.

As described above, in order to adjust the convergence point, the position of the prism P may be moved forward and backward along the X-axis direction to finely adjust the convergence point. However, a large range of convergence point adjustment is described in the NO. 3 can be adjusted. That is, the photographer is allowed to use the NO. After adjusting the approximate convergence point through 3, the convergence point can be precisely adjusted by moving the position of the prism P forward and backward in the X-axis direction.

The configuration of the second camera 240 described above may be equally applied to the first camera 230.

The monocular stereoscopic camera of the present invention is typically a general camera for photographing images of people, insects, backgrounds, CCTV, navigation, vehicle black box, industrial inspection device, non-destructive inspection equipment, cameras for museum exhibits or merchandise displays, educational cameras, For military cameras, drones, smartphones, VR / AR imaging cameras, biometric cameras such as irises and fingerprints, endoscopes, laparoscopes, general microscopes, surgical microscopes, and skin diagnostics, where the subject is close to the lens of the stereoscopic camera. It can also be mounted on the loupe and the like.

100, 200, 300: monocular stereoscopic camera
10: first imaging lens assembly 20: second imaging lens assembly
30, 330: first camera
40, 340: Second camera 31, 41: Third imaging lens assembly
36, 46: imaging plane P: prism
310: main lens housing 320: mirror box
321: fixing device 322: rotation means
322A: movement control member 322B: lower base
322C: connection portion 322D: second fixing hole
322E: fixing member 322F: first fixing hole
322G: upper base
323: vehicle 323A: upper frame
323B: lower frame, 323C: connecting member
323D: control module 324: lens box
341: body 342: imaging unit
343a to 343d: second connecting member

Claims (12)

A first imaging lens assembly 10;
Prism (P) for refracting or reflecting the light beams passing through the first imaging lens assembly (10);
A first camera (30) mounted with a third imaging lens assembly (31) for imaging a part of the rays refracted or reflected by the prism (P); And
A monocular stereoscopic camera including a second camera 40 mounted with a third imaging lens assembly 41 for imaging the remaining light beams refracted or reflected by the prism P,
The prism P has a triangular shape, and one surface of the prism is disposed to face the first imaging lens assembly, so that a light beam passing through the first imaging lens assembly is incident into the prism through one surface of the prism and then prism. Has an optical path that separates the other two sides of
The prism P is moved forward and backward along the longitudinal direction X in which the first imaging lens assembly 10 is disposed, so that a convergence point, which is a convergence point of the optical axes of the third imaging lens assembly 31 and 41, is obtained. A monocular stereoscopic camera characterized by adjusting. The method of claim 1,
The monocular stereoscopic camera
The prism P adjusts the horizontal height of an image formed on the third imaging lens assembly 31 or 41 as the prism P rotates about the longitudinal direction X in which the first imaging lens assembly 10 is disposed. Monocular stereoscopic camera. The method of claim 1,
The prism P is a triangle having two sides having the same length, and having an isosceles triangle having the same size of two base angles with respect to the isosceles. delete The method of claim 1,
The monocular stereoscopic camera
A fixing device 321 for fixing the position of the prism P; And
It further comprises a rotating means 322 connected to the fixing device 321 for rotating the prism (P) in the longitudinal axis (X) in which the one imaging lens assembly 10 is disposed about a central axis. Repose stereoscopic camera. The method of claim 5,
The rotating means 322 is
A lower base 322B having a concave curved surface on one surface thereof;
An upper base 322G facing an upper surface of the lower base 322B and having a convex shape on one surface thereof; And
Monocular stereoscopic camera, characterized in that it comprises a movement control member (322A) for curved surface movement of the upper base (322G) in the upper portion of the lower base (322B). The method of claim 5,
The monocular stereoscopic camera
And a moving unit 323 connected to a lower portion of the fixing device 321 to move the prism P forward and backward along the longitudinal direction X in which the first imaging lens assembly 10 is disposed. Monocular stereoscopic camera. The method of claim 1,
The first camera 30 or the second camera 40
A body 341 having the third imaging lens assembly 31 and 41 mounted thereon;
An imaging unit 342 spaced apart from and facing the body 341, and an image of the third imaging lens assembly is formed; And
Monocular stereoscopic camera, characterized in that it comprises a second connecting member for adjusting the separation distance between the body (341) and the imaging unit (342). The method of claim 8,
The body 341 and the image capturing unit 342 have a rectangular or circular shape, and through holes are formed at each corner thereof.
The second connecting member is a monocular stereoscopic camera, characterized in that the threaded insertion into the through-hole (H). The method of claim 8,
By using the second connection members 343a to 343d to adjust or tilt the imaging unit 342 from the body 341, the third imaging lens assembly 31 and 41, the first camera, and the first camera are formed. 2 Monocular stereoscopic camera, characterized in that any one or more of the position error alignment, left and right relative height adjustment, convergence point adjustment of the camera is controlled. The method of claim 1,
The monocular stereoscopic camera
A monocular stereoscopic camera characterized in that the connected arrangement of the first imaging lens assembly (10) and the third imaging lens assembly (31, 41) has a 'Y' shaped rig. The method of claim 1,
The monocular stereoscopic camera
And a second imaging lens assembly (20) disposed between the first imaging lens assembly (10) and the prism (P).