KR20070101531A - Stereo zoom lens system for stereophonic image photographing using non-lossy light path coupling device - Google Patents

Abstract

A stereo zoom lens system using lossless light path coupling device for stereographing is provided to produce 3D images in good quality by optimally reducing the distance between left and right light paths to be the average eye distance of human. A stereo zoom lens system(10) using lossless light path coupling device for stereographing includes a left optic system(100), a right optic system(200), a light path coupling device(300), a second relay lens(500), and a color composition prism(600). The left optic system(100) includes a left zoom lens, a first left relay lens, a first mirror(130-1), and a second mirror(130-2) and the right optic system(200) includes a right zoom lens, a first right relay lens, a third mirror(130-3). The light path coupling device(300) synthesizes left light and right light from the left/light optic systems(100,200) by transmitting or reflecting them into a single light.

Description

Stereo zoom lens system for stereoscopic image capturing using lossless optical path coupling device

1 is a view showing a state in which a stereoscopic image is taken by inserting a ready-made lens to each of two cameras in the prior art;

2 is a diagram illustrating synthesis of a stereoscopic image using a focusless adapter as another example of the related art.

3 is a diagram illustrating stereoscopic image synthesis by X-cube as another example of the prior art;

4 is a view showing a stereo zoom lens system for stereoscopic imaging using a lossless optical path combining apparatus according to the present invention;

5 is a view showing an optical path coupling device according to the present invention;

6 is a diagram illustrating a tele state, a middle state, and a wide state of a stereo zoom lens system for stereoscopic image recording using a lossless optical path combining device according to the present invention;

7 is a view showing a combined state of a stereo zoom lens system for stereoscopic image recording using the optical path combining apparatus according to the present invention;

<Explanation of symbols for main parts of the drawings>

10: Stereo zoom lens system for stereoscopic image shooting

100 left optical system 110 zoom lens system

111: group 1 lens 112: group 2 lens

113: third group lens 114: fourth group lens

120: first relay lens system 130-1: first mirror

130-2: second mirror 130-3: third mirror

200: right optical system 300: optical path coupling device

310: rotating disk 313, 324: shaft

320: contactless motion transmission device 321, 322: ring

323: motor 330: main time controller

331: first viewing angle adjusting unit 332: second viewing angle adjusting unit

340: sensor 400: aperture

500: second relay lens system 600: color synthesis prism

700: CCD

The present invention relates to a stereo zoom lens system for stereoscopic imaging using a lossless optical path combiner, and more particularly, to maintain a left and right binocular spacing of 65 mm, which is a distance of feeling a perfect stereoscopic sense through the left and right eyes of a person. Stereo for stereoscopic imaging using a lossless optical path combining device that combines the left and right images obtained from a stereo zoom lens system formed of two optical paths into a single optical path and transmits them to one camera CCD so that there is no light loss in a left and right intersection. A zoom lens system.

Currently, we are deeply aware of the importance and necessity of stereoscopic images both at home and abroad, and many studies are being conducted in the field of stereoscopic images as they emerge as the next generation media, but the direction of research is mainly limited to the display field. In addition, research on the field of stereoscopic imaging equipment is insufficient. The reason for this is that it is not so urgent that stereoscopic images can be obtained by attaching two lenses to two cameras and simultaneously photographing them. However, developed countries around the world have not developed stereo lenses for stereoscopic imaging.

When taking a stereoscopic image using two conventional cameras and a conventional lens described above has the following problems.

First, as shown in FIG. 1, the two cameras 1 and 2 are horizontally arranged side by side or in a box form so as to be integrated into one, but are not used for stereoscopic image shooting. It is designed to make the D-caliber large and to give priority to performance, so the diameter of the lens barrel and the size of the camera body are so large that it is impossible to maintain the binocular spacing of the camera at human binocular spacing (65mm). Because there is no choice but to shoot at a wide interval (about 130mm or more), not only short distance shooting is possible, but also when viewing the image, there is a problem that the image is distorted and the eyes are cluttered or burdened so that a long time cannot be reduced.

The second problem is that it is not easy to synchronize two cameras and lenses in the same way (controlling the camera's sync, zoom, focus, iris, etc.).

Thirdly, when close-ups are taken based on the main time, the keystone is generated and the horizontal level of the left and right images coincide with a large number of parameter values in the left and right angles. There is a problem that causes headache symptoms when not watching.

Fourthly, in order to capture high-quality video by conventional stereoscopic equipment, an additional additional device or electronic device must be necessarily attached. Also, since it uses two cameras and two lenses, it is economically expensive. There is a problem that rises.

Fifth, conventional stereoscopic imaging equipment is bulky, heavy, and heavy, which makes it impossible to capture the net price due to lack of maneuverability. There is a problem that rises.

Therefore, as a conventional technique for solving the above problems caused when taking a stereoscopic image using two cameras and lenses as described above, the adapter optical system can be installed at the front end of the camera lens to obtain a stereoscopic image. There is a way.

That is, as shown in Figure 2 as a type of adapter for acquiring a stereoscopic image by connecting and installed in front of the existing lenses of various types of camcorders or cameras, performance information such as the design situation for the lenses of conventional camcorders or camera types in advance The adapter optical system is designed in a situation that cannot be considered, and it is impossible to have sufficient resolution when combined with each other, and when shooting wide angles of view, the angle is increased in front of the main lens of the camcorder or the camera. Not only is it difficult, but also when using an adapter lens system made of four-group lenses (L1, L2, L3, L4) because the position of the entrance pupil is changed when the focal length of the zoom lens mounted inside the camcorder or camera is changed, the zoom lens is used. It should be converted into an entrance pupil suitable for.

However, because the adapter lens system cannot sufficiently compensate for the above problems, the angle of view is not enough, and a circle is drawn around and becomes dark (a vigrate, a gera). On the other hand, while it is possible to take a picture without a phenomenon, a problem that the angle of view is too narrow has arisen.

In addition, in order to combine the left and right optical paths of the adapter lens system into one optical path, a beam splitter (BS; a device for combining two optical paths reflected by the beamsplitter, mirrors M1, M2, and M3 into one optical path). Because of the use of 50% of light is lost.

Therefore, there is a problem that only the lower level stereoscopic image can be obtained with the above-described conventional structure.

Furthermore, in addition to the above-described configuration, as shown in FIG. 3, the first lens group 3-1 for adjusting focus, the second lens group 3-2 for magnification conversion and compensation, and the third lens group A zoom lens 3 composed of (3-3) and a fourth lens group 3-4 which is a master lens is formed.

In addition, an aperture (not shown) is formed behind the third lens group 3-3 of the zoom lens 3, and the front saprism 4 and the X-cube 5 are arranged behind the aperture.

Furthermore, the aperture is arranged behind the third lens group 3-3 and in front of the total reflection prism 4, and the shutter device composed of the rotating disc 6 is disposed at a position in close contact with the aperture to alternate left and right images. It is a means to control the main vision of the left and right lenses and to control the main vision of the left and right lenses by controlling the fine rotation in the opposite direction with respect to the axis of the circle connected to the bottom of the total reflection prism 4 located on both sides. X-cube (5) is used to combine the incident light refracted by 90 ° in the total reflection prism (4) located on both sides into one optical path.

The above-described configuration is arranged so that the X-cube 5 for coupling the optical path is arranged between the third lens group 3-3 and the fourth lens group 3-4, so that a high magnification (high zoom ratio) zoom lens ( Not only is the design of 3) impossible, but in reality, the zoom ratio of the zoom lens can be realized only three times.

In addition, due to the characteristics of the dual reflection optical system X-cube (5) used at the time of optical path coupling, 75% of the light (7) is lost and only 25% is obtained, thereby failing to function as a lens of F2.8, which is an original design value. The result is a lens of F5.6 with a total loss of 3/4. Also, if the precision of the X-cube 5 is not 100%, a double image is generated as much as the generated error. .

Wherein F2.8 or F5.6 represents the numerical value of the aperture, the numerical value of the aperture is indicated by F #, where # is a number.

In addition, since the X-cube 5 uses only 25% of the light amount, there is a technique in which the light splitter beam splitter shown in FIG. 2 is merged to overcome this. The technique incorporating the light splitter beam splitter can use up to 50% of the amount of light and cannot use 100%.

On the other hand, in the case of changing the lens in the process of taking an image in general, there is a problem that you need to replace the entire lens including the optical coupling device.

Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to design the left and right two optical paths by maintaining the distance between the binocular spacing 65mm, which is a distance that feels a perfect three-dimensional feeling through the left and right eyes of a person Provides a stereo zoom lens system for stereoscopic image shooting using a lossless optical path combining device that combines the left and right images obtained from the formed stereo zoom lens system into a single optical path and transmits them to one camera CCD so that there is no light loss in a left and right intersection. It is.

Another object of the present invention is to provide a stereo zoom lens system for stereoscopic image capturing using a lossless optical path combining apparatus for easily swapping and photographing various kinds of necessary lenses in order to capture an image having a suitable focal length and angle of view.

In order to achieve the above object, a stereo zoom lens system for stereoscopic image capturing using a lossless optical path combiner according to an embodiment of the present invention includes a left first relay lens, a first mirror, and a second mirror from a left zoom lens on which left light is projected. The left optical system receiving the left light through the left optical system, the right optical system on the other side of the left light receiving the right first relay lens from the right zoom lens, the right optical system arranged to receive the right light through the third mirror, and the left and right optical systems An optical path combining apparatus for transmitting or reflecting the left light and the right light to synthesize the left light and the right light into a single light, a second relay lens for compensating the synthesized single light with high quality, and the compensated image quality. It is characterized by consisting of a color synthesis prism that is separated into three primary colors of red, green, and blue.

According to an embodiment of the present invention, the optical path coupling device includes a rotating disc through which the left light of the left optical system and the right light of the right optical system are transmitted and reflected, and a contactless motion for transmitting a rotational force for rotating the rotating disc from a motor. It characterized in that it comprises a transmission device, a main time control unit for controlling the main point of contact with the left light transmitted and reflected on the rotating rotating disk, the right light.

According to an embodiment of the present invention, a sensor for synchronizing the rotational speed of the rotating disc and the recorded sink of the camera is further provided.

According to an embodiment of the present invention, the rotating disc is characterized in that the surface on which the left light and the right light are transmitted or reflected is divided into even numbers.

According to an embodiment of the present invention, the left optical system and the zoom lens of the right optical system are detachable.

According to an embodiment of the present invention, the optical path coupling device is provided with a non-contact motion transmission device to transmit or reflect the right light and the left light by rotating the rotating disc.

According to an embodiment of the present invention, the optical path combining apparatus includes two vergence adjusters, and each of the two vergence adjusters is provided with a second mirror of a left optical system and a third mirror of a right optical system. The angle of view is controlled by the rotation of the visual adjustment unit.

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

4 is a diagram illustrating a stereo zoom lens system for stereoscopic image capturing using a lossless optical path combining apparatus according to the present invention.

Referring to the drawings; The stereoscopic camera 10 includes a left optical system 100, a right optical system 200, an optical path combiner 300, an aperture 400, a second relay lens system 500, and a color synthesizing prism 600.

In more detail, the left optical system 100 includes a zoom lens system 110, a first relay lens system 120, a first mirror 130-1, and a second mirror 130-2. The zoom lens 110, the first group lens 111, the second group lens 112, the third group lens 113 and the fourth group lens 114 serving as the master lens are sequentially arranged, and the first group The lens 111 serves as a focus adjuster to sharpen an image of a nearby object. That is, when the distance of the object is closer, the focus adjuster moves forward to detect the clear image on the CCD 700.

The second group lens 112 and the third group lens 113 are variable displacement systems and move forward and backward to change the focal length of the zoom lens system 110 to change the size and angle of view of the object.

The fourth group lens 114 that is the master lens unit arranged in front of the first relay lens system 120 finally forms a clear image. Also, a first mirror 130-1 and a second mirror 130-2 are arranged behind the first relay lens system 120, and the first relay lens system 120 and the second mirror 130-are arranged. At the rear of 2), the optical path coupling device 300 is arranged.

The first relay lens 120 improves and maintains the resolution of the image formed from the zoom lens 110 and requires the first mirror, the second mirror, and the third mirror 130-1, 130-2, and 130 required for the optical path coupling. -3) and the distance, that is necessary for the installation space of the rotation disc 310 of the optical path coupling device 300 to secure the interval.

The right optical system 200 is symmetrical with the left optical system 100. However, in the right optical system 200, only one third mirror 130-3 is arranged in place of the first mirror 130-1 and the second mirror 130-2 arranged in the left optical system 100.

The optical path combiner 300, as shown in Figure 5, the rotary disk 310, the contactless motion transmission device 320, the main vision controller 330, the second and third beauty shown in FIG. And 130 (130-1 and 130-2).

In more detail, when the rotating disc 310 is rotated at an angle of 45 °, the light corresponding to the left optical path image reflected by the second mirror 103-2 positioned at the end of the left optical system 100 is rotated. It transmits the light and reflects the light corresponding to the image of the right light path reflected by the third mirror 103-3 located at the end of the right optical system 200.

In addition, the rotation disc 310 of the optical path coupling device 300 for coupling the left optical system 100 and the right optical system 200 is arranged on a diagonal line in which the left and right optical paths cross at 90 ° angles. Is used by dividing the area of the rotational disc 310 into two, except for the area occupied by the central shaft 313 within the radius of the rotational disc.

100% transmissive coating is applied to one side 311 of the two-segmented rotating disc 310 and the other side 312 is processed by 100% reflective coating. In addition, the rotating disc 350 is preferably a glass material.

Therefore, when the rotating disc 310 rotates, once the light of the left optical system 100 is reflected through the second mirror 130-2 and transmitted linearly through the transparent coating surface 311 of the rotating disc 310. Once, the light of the right optical system 200 is reflected at 90 ° from the reflective coating surface 312 of the rotating disc 310 through the third mirror 130-3. In this way, transmission and reflection are repeated so that the left light and the right light intersect and are sequentially synthesized into a single light without loss of light. The single light includes an aperture 400, a second relay lens 100, and a color synthesis prism 600. ) Is transferred to the CCD 700 and the image is recorded.

In particular, the rotation disc 310 may be made to be evenly divided into two, four, and six equal parts so as to be transmitted and reflected. However, when the rotary disc 310 is subdivided into equal parts, the size of the original disc becomes larger. In this invention, it is most preferable to divide into 2 parts in order to reduce the external shape of a lens.

On the other hand, in order to synchronize the rotational speed of the rotating disk 310 and the recording moment of the camera, the sensor 340 mounted on the lower portion of the rotating disk 310 is rotated into two divided disk 310 is transmitted and reflected Therefore, a state signal is detected that changes from a transparent state to an opaque state and from an opaque state to a transparent state. The program is constructed to control the RPM (revolution speed per minute) of the motor 323 which rotates the rotating disc 310 to be synchronized with the sink of the camera with the detected signal. It is installed and controlled in a control unit built in a stereoscopic image capturing camera equipped with a stereo zoom lens system for image capturing.

In addition, the zoom lens system 110 controls the focus of the first group lens 111 and the zoom lens control of the second group lens 112, the third group lens 113, and the fourth group lens 114 on the left side. Since the optical system 100 and the lens of the right optical system 200 are positioned symmetrically to the left and right, a gear suitable for the outer diameter of the lens barrel is formed, a motor is used between the barrel and the barrel, and the gear is mounted on the motor shaft so that the lens is attached to both barrels. It is installed so that the left and right at the same time synchronized with the formed gear and controlled.

Since the contactless motion transmission device 320 (McTran) is a permanent magnet in the shape of a ring in the form of a general bearing, a magnetic force having positive and negative polarities is formed in the outer diameters of the bearing-shaped rings 321 and 322. Because of this, rotational motion can be transmitted without contact.

One of the bearings 321 and 322 of the bearing form 322 is a shaft that is connected to the motor shaft 324 and the other 321 is connected to the center of the rotation disk 310 to transfer the motion of the motor 323 ( 313) should be installed as close as possible to avoid contact with each other. At this time, since the two magnet rings 321 and 322 are in contact with each other, a method of removing the paper after fixing two brackets of thin paper in advance and tightening the supporting bracket is fixed.

The contactless motion transmission device 320 is the motor 323 side, and when the motor 323 is driven without contact with the rotation disc 310, the rotation disc 310 is the same in the opposite direction of rotation of the motor 323 The two rings 321 and 322 are rotated, and the closer they are not in contact with each other, the stronger the torque, and the weaker they are.

The second mirror 130-2 located at the end of the left optical system 100 and the third mirror 130-3 located at the end of the right optical system 200 are geared at the lower end of the circular center axis at each lower end thereof. Connected main time controller 330 is formed to enable automatic control using the motor 323, as well as manual control without using a motor.

The main time controller 330 determines a main view of the image formed by the left optical system 100 and the image formed by the right optical system 200 through the second mirror 130-2 or the third mirror 130-3. The first vergence adjuster 331 and the second vergence adjuster 332 are controlled.

The first and second viewing angle adjusting units 331 and 332 have a gear set configured in the lower end of the central axis of the first and second viewing angle adjusting units 331 and 332 to determine a main view point. Is controlled by a manual or a motor, and is controlled by means of equally divided parts in the left and right optical paths so as not to be biased to one side.

Therefore, the optical path combiner 300 transmits the single image synthesized by transmitting and reflecting the image of the left optical system 100 and the image of the right optical system 200 to the CCD 700 as described above.

The main time of the second and third mirrors 130-2 and 130-3 is adjusted by the rotation of the first or second viewing angle adjusting units 331 and 332 provided in the main time controller 330.

Next, the diaphragm 400 is arranged behind the optical path combiner 300 and controls the amount of light by adjusting the aperture through which the light passes.

Next, the second relay lens system 500 is arranged behind the diaphragm 400, and the color synthesizing prism 600 is arranged behind the second relay lens system 500, and the CCD is behind the color synthesizing prism 600. 700 is arranged and formed.

The second relay lens system 500 compensates a single image obtained by synthesizing the left image of the left optical system 100 and the right image of the right optical system 200 in the optical path combining apparatus 300 to a high-definition image, and transmits the same to the CCD 700. do.

The color synthesizing prism 600 separates the compensated image quality into three primary colors of red, green, and blue and transmits the same to the CCD 700.

At this time, the color synthesizing prism 600 and the CCD 700 is fixed to the inside of the conventional camera, in combination with the stereo zoom lens of the present invention to complete a three-dimensional image-only camera in advance and predetermined camera model As such, the stereo zoom lens system is designed to ensure various characteristics and information such as material, aberration, spacing, size, and the like, and to fit the information.

Therefore, when the aperture is positioned in the zoom lens as in the prior art, the aperture must be installed at two positions, respectively, at the left and the right. However, when the aperture 400 is positioned at the second relay lens system 500, the optical path is coupled to one optical path. By setting the aperture only in one place, the configuration and control of the stereo zoom lens system for stereoscopic image capturing using a lossless optical path coupling device is simplified.

That is, when the position of the image surface formed by the zoom lens system 110 is matched with the position of the front focal point of the first relay lens 120, the light transmitted through the first relay lens 120 becomes parallel light, and thus Images are imaged on the CCD 700 arranged behind the color synthesizing prism 600 by the second relay lens 500 through the first mirror 130-1, the second mirror 130-2, and the aperture 400. do.

Specifications of the stereoscopic image photographing lens system of the present invention configured as described above are a zoom lens having a zoom ratio of 10 times with a focal length of 7.35 mm to 7.53 mm and a F # of 2.8.

In addition, since the CCD specification used is 2/3 inch (actual diagonal length 11mm) and the aspect ratio is 16: 9, the size of CCD becomes 9.59mm width 5.39. According to the calculated angle of view, in the case of the DLS having a focal length of 7.53 mm, it becomes 65 ° horizontally, 36.6 ° vertically, and 74.6 ° diagonally.

The horizontal, vertical, and diagonal expressions are expressed as follows.

65 ° horizontal =

36.6 ° vertical =

Diagonal 74.6 ° =

}))가 되고, 이 값은 주시각의 변화이다. 또한 줌렌즈는 수평방향으로 67.658°(65° ＋ 2.658)까지 촬영할 수 있도록 설계되고 상기 설계된 줌렌즈계(110)를 대각으로 환산하면 대각선거리 12.1㎜까지 좋은 영상이 결상되도록 설계한다.On the other hand, when the nearest photographing distance is 700 mm, the angle of viewing the object at the center of the binocular distance 65 mm is 2.658 (

})), And this value is the change in viewing angle. In addition, the zoom lens is designed to shoot up to 67.658 ° (65 ° + 2.658) in the horizontal direction, and when the designed zoom lens system 110 is converted diagonally, a good image is formed up to a diagonal distance of 12.1 mm.

Therefore, the lens used for this purpose should be designed to have an angle of view that is 10% wider than that of a conventionally designed lens.

The first relay lens system 120 is also designed to accommodate an image having a diagonal distance of 12.1 mm in the same way as the zoom lens system 110, while the second relay lens 500 is diagonally equal to the size of the CCD 700. Designed with a distance of 11 mm.

The left and right lens systems 100 and 200 divide the amount of the 20% of the angle of view required for the main visual control of the adjacent object in half by dividing each of the left and right lens systems 100 and 200 by 10%. Design by accepting the angle of view. In addition, the second relay lens 500 is designed to have a diagonal distance of 11 mm because the angle of view required for changing the viewing angle is not required.

In addition, the focal length of the first relay lens 120 and the second relay lens 500 is 40 mm, and F # is the same F2.8 as the zoom lens 110.

As a result, a diameter R = 14.29 (40 / 2.8) through which light passes through the diaphragm 400 is obtained.

In general, when the magnification of the relay lens unit is the same ratio as shown in FIG. 5 by making the focal lengths of the first relay lens 120 and the second relay lens 500 the same, the F # of the zoom lens unit and the F # of the relay lens are the same. However, the relay lens unit having the focal length of the first relay lens 120 and the second relay lens 500 at 40 mm and the focal length of the second relay lens 500 at 60 mm is 1.5 times the magnification optical system. Since the relay lens unit is enlarged 1.5 times even if the size of the image formed in the zoom lens unit is 7.333 mm, the diagonal distance becomes 11 mm at the position of the CCD 700 as a result.

Therefore, since the size of the zoom lens 110 can be reduced, the binocular distance 65mm can be maintained, while the F # of the zoom lens is designed to be 1.87 (2.8 / 1.5) in order to set the F # of the entire optical system to 2.8.

As described above, the zoom lens system of the stereoscopic image capturing lens system according to the present invention shows that the structure and the optical path of the tele state, the middle state, and the wide state of the optical system are characteristically changed, respectively.

In addition, in the present invention, as shown in FIG. 7, A is the main body of the camera, B is the first relay lens and the optical path coupling device is included, and C is divided according to the use is largely attached to the zoom lens system.

In general, when taking a picture, it is possible to produce a high-quality image according to the shooting by exchanging a lens of various specifications according to the purpose of use according to the shooting object. B, which includes an optical path combiner, maintains the connection with the camera body of A, and when the zooming is not necessary, the C zoom lens can be replaced with other lenses having different focal lengths to capture high quality images.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this and is given by the person of ordinary skill in the art to the following, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Therefore, the present invention uses a single optical path by combining the left and right optical paths without loss of light by using an optical path coupling device equipped with a rotating disc which rotates the image formed by the zoom lens by a contactless motion transmitter. There is an effect that can be imaged on the camera, the present invention can also reduce the distance between the binocular to 65mm, the average distance between the human eyes of the human eye can obtain a high-quality image without eye fatigue, one small As it captures a three-dimensional image using a lightweight camera, not only instant capture is possible but also economical effect.

Moreover, by using a contactless motion transmitter, not only noise can be recorded simultaneously but also the single lens of various specifications can be easily developed and exchanged for the purpose of producing high quality stereoscopic image contents. have.

Claims (7)

A left optical system receiving a left first relay lens, a left light through a first mirror and a second mirror from a left zoom lens on which left light is projected; A right optical system disposed on the other side of the left light to receive a right first relay lens from a right zoom lens and a right light through a third mirror; An optical path combining apparatus for transmitting or reflecting the left light and the right light of the left and right optical systems to combine the left light and the right light into a single light; A second relay lens for compensating the synthesized single light with high quality; And 3. The stereo zoom lens system for stereoscopic image capturing using a lossless optical path combiner, comprising a color synthesis prism that separates the compensated image quality into three primary colors of red, green, and blue. The method of claim 1, wherein the optical path coupling device A rotating disc through which the left light of the left optical system and the right light of the right optical system are transmitted and reflected; A contactless motion transmission device for transmitting a rotational force for rotating the rotation disc from a motor; And 3. A stereo zoom lens system for stereoscopic image capturing using a lossless optical path combiner, comprising a main time control unit configured to adjust a main view of the left light transmitted and reflected by the rotating rotating disc and a main view of the right light. The stereo zoom lens system of claim 2, further comprising a sensor for synchronizing the rotational speed of the rotating disc with the recorded sink of the camera. The stereo zoom lens system according to claim 2 or 3, wherein the rotating disc is equally divided into even and equal sides of the left and right light beams. The stereo zoom lens system of claim 4, wherein the left optical system and the zoom lens of the right optical system are detachable. The stereoscopic image recording stereo of claim 1 or 2, wherein the optical path coupling device is provided with a contactless motion transmission device to rotate the rotating disc to transmit or reflect the right light and the left light. Zoom lens system. The optical path combining apparatus according to claim 1 or 2, wherein the optical path combining apparatus is provided with two viewing angle adjusting units, and each of the two viewing angle adjusting units has a second mirror of a left optical system and a third mirror of a right optical system attached thereto. Stereo zoom lens system for stereoscopic imaging using a lossless optical path combiner, characterized in that the viewing angle is adjusted by the rotation of the control unit.

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