WO2019128097A1

WO2019128097A1 - 3d imaging system and apparatus thereof

Info

Publication number: WO2019128097A1
Application number: PCT/CN2018/088980
Authority: WO
Inventors: 杨伟樑; 高志强; 赵远; 郭胜男
Original assignee: 广景视睿科技（深圳）有限公司
Priority date: 2017-12-26
Filing date: 2018-05-30
Publication date: 2019-07-04
Also published as: CN109960103B; CN109960103A

Abstract

A three-dimensional (3D) imaging system and apparatus thereof. A display source (10) emits a main light beam. After being transmitted and reflected by a semi-transmissive semi-reflective mirror (30), the main light beam is divided into a first sub-light beam and a second sub-light beam. The first sub-light beam is reflected to an observation area (50) to be observed by human eyes, so as to form to a first image (S1). The second sub-light beam is transmitted to a retroreflective mirror (40), emitted with position shifted in a reverse direction by the retroreflective mirror (40), transmitted or reflected to the display (20) by means of the semi-transmissive semi-reflective mirror (30), then reflected to the semi-transmissive semi-reflective mirror (30) by means of the display (20), and finally transmitted or reflected, by means of the semi-transmissive semi-reflective mirror (30), to the observation area (50) to be observed by the human eyes, so as to form to a second image (S2). The first image (S1) and the second image (S2) are superposed to form a 3D image. The 3D imaging system can implement 3D projection imaging merely by one display source (10), and the positions of the first image (S1) and the second image (S2) are relatively precise.

Description

3D imaging system and device thereof

Technical field

The present application relates to the field of 3D projection technology, and in particular to a 3D imaging system and apparatus therefor.

Background technique

3D is an abbreviation for three-dimensional, which is a three-dimensional figure. The reason why the human eye can observe the three-dimensionality of the world is because people have two eyes. When we observe things, the parallax displacement caused by the two eyes is analyzed by the brain, and the distance between the objects is distinguished. , thus producing a strong three-dimensional feeling.

A conventional 3D imaging system generally employs two imaging devices, and a first light beam that displays a first image that is displaced from each other by two imaging devices displays a second light beam of the second image, and the first light beam and the second light beam pass through the grating or 3D. The glasses are respectively injected into the left and right eyes of the observer, and the first image and the second image are analyzed by the brain to generate a 3D image.

However, in the process of implementing the present application, the inventors have found that a conventional 3D imaging system requires two imaging devices, which are difficult to accurately position, and inaccurate positioning of the two imaging devices may result in image blurring, pixel separation, etc. Problems that affect the user experience.

Summary of the invention

In order to solve the above technical problem, the present application provides a 3D imaging display system that can realize 3D projection by only one imaging device.

The embodiments of the present application solve the technical problem by adopting the following technical solutions:

A 3D imaging display system includes: a display source, a display screen, a half mirror, and a retroreflector; the display source is disposed opposite to the retro mirror, and the transflectoscope is disposed on the Between the display source and the retroreflector, and the half mirror is disposed at an angle with the retroreflector, the observation area is disposed in front of the half mirror; the display source a main beam for emitting a display image, the main beam being transmitted and reflected by the half mirror, the main beam being split into a first sub-beam and a second sub-beam, the first sub-beam being semi-transparent The half mirror is reflected to the observation area to form a first image; the second sub beam is transmitted through the half mirror to the retro mirror, the retro mirror shifts the second sub beam And in the opposite direction, the second sub-beam is transmitted to the semi-transparent mirror to transmit or reflect, the second sub-beam is incident on the display screen, and the display screen makes the second sub-beam Reflecting back to the half mirror, the half mirror reflects or transmits the second sub beam to the view Region to form a second image; the first image and the second image can be superimposed on a three-dimensional image.

In some embodiments, the 3D imaging display system further includes a pitching device; the pitching device is coupled to the retroreflector; the pitching device is configured to adjust a distance of the retroreflector from a display source.

In some embodiments, the display screen is disposed between the half mirror and the display source; when the second sub-beam is incident from the side of the retroreflector to the half mirror The second sub-beam will pass through the half mirror; when the main beam or the second sub-beam is incident from the side of the display screen to the half mirror, the main beam Or the second sub-beam will transmit and reflect at the same time.

In some embodiments, the side of the transflective mirror facing away from the display source is plated with a material having a predetermined light reflection and transmission ratio.

In some embodiments, the display screen is further configured to transmit the main light beam directed from the display source side to the display screen through the display screen.

In some embodiments, the side of the display screen adjacent to the display source is plated with a specular retroreflective film.

In some embodiments, the display screen, the half mirror, and the retroreflector are triangularly distributed; when the second sub-beam is incident from a side of the retroreflector to the half mirror The second sub-beam will be reflected to the display screen; when the second sub-beam is incident from the display side to the half mirror, the second sub-beam is transmitted to the viewing area.

In some embodiments, both sides of the transflective mirror are plated with a material that has a predetermined light reflection and transmission ratio.

In some embodiments, the 3D imaging display device further includes a high speed rotating mirror; the high speed rotating mirror is disposed between the observation area and the half mirror; the high speed rotating mirror can rotate at a high speed around its own rotating shaft, The self-rotating axis is parallel to the display screen and the half mirror, and the high-speed rotating mirror is used for the second sub-beam from the side of the half mirror to the high-speed rotating mirror Reflected to the viewing zone at different angles.

The application also provides a 3D imaging display device comprising a 3D imaging display system as described above.

The 3D imaging display system provided by the embodiment of the present application includes: a display source, a display screen, a half mirror, and a retroreflector; the display source is different from the prior art. Opposite to the retroreflector, the half mirror is disposed between the display source and the retroreflector, and the semitransparent mirror is disposed at an angle with the retroreflector. The observation area is disposed in front of the half mirror; the display source is configured to emit a main beam of the display image, and the main beam is transmitted and reflected through the semi-transparent mirror, and the main beam is divided into a sub-beam and a second sub-beam, the first sub-beam being reflected by the half mirror to an observation area to form a first image; the second sub-beam is transmitted through the half mirror to The retroreflector, the retroreflector deflects and injects the second sub-beam, and the second sub-beam is transmitted to the transflective mirror to transmit or reflect, so that the second a sub-beam is incident on the display screen, the display screen causing the second sub-beam to be inverted Back to the half mirror, the half mirror second sub-beam reflected or transmitted to the viewing area, to form a second image; the first image and the second image can be superimposed on a three-dimensional image. In the above manner, projection 3D imaging can be realized by only one display source, and the positions of the first image and the second image are relatively accurate.

DRAWINGS

The one or more embodiments are exemplified by the accompanying drawings in the accompanying drawings, and FIG. The figures in the drawings do not constitute a scale limitation unless otherwise stated.

1 is a schematic diagram of a 3D imaging display system provided by a first embodiment of the present application;

2 is a schematic structural view of a retroreflector of the 3D imaging display system shown in FIG. 1;

3 is a schematic structural view of another retroreflector of the 3D imaging display system shown in FIG. 1;

Figure 4 is a schematic diagram of a grating of the 3D imaging display system shown in Figure 1;

FIG. 5 is a schematic diagram of a 3D imaging display system provided by a second embodiment of the present application; FIG.

FIG. 6 is a schematic diagram of a 3D imaging display system provided by a third embodiment of the present application.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and specific embodiments. It is to be noted that when an element is described as being "fixed" to another element, it can be directly on the other element, or one or more central elements can be present. When an element is referred to as "connected" to another element, it can be a <RTI ID=0.0> </ RTI> </ RTI> <RTIgt; The orientation or positional relationship of the terms “vertical”, “horizontal”, “left”, “right”, “upper”, “lower”, “inside”, “outside”, “bottom”, etc. as used in this specification. The orientation and the positional relationship shown in the drawings are merely for the convenience of the description and the description, and are not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot It is understood to be a limitation on the present application. Moreover, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless otherwise defined, all technical and scientific terms used in the specification are the same meaning The terms used in the description of the present application are for the purpose of describing the specific embodiments and are not intended to limit the application. The term "and/or" used in this specification includes any and all combinations of one or more of the associated listed items.

Further, the technical features involved in the different embodiments of the present application described below may be combined with each other as long as they do not constitute a conflict with each other.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a schematic diagram of a 3D imaging display system 100 including a display source 10, a mirror 20, a half mirror 30, and a retro mirror. 40. The display screen 20 is disposed in parallel with the retroreflector 40. The half mirror 30 is located between the display screen 20 and the retroreflector 40. The display source 10 is disposed on a side of the display screen 20 facing away from the retroreflector 40.

The display source 10 is used for emitting a main light beam for displaying a virtual scene image, and the display source 10 is, for example, a lens of a projection device, a screen of a smart mobile terminal, etc., and the set of main beams emitted by the display source 10 may be divergent, parallel, and aggregated. For example, the display beam 10 emits a pair of light beams that are parallel to each other, that is, the main light beams emitted from the display source 10 are normal to the lens or screen of the display source 10.

The above display screen 20 is used, on the one hand, to transmit light from the side closer to the display source 10 through the display screen 20, and on the other hand, to be reflected by the light beam near the side of the half mirror 30 through the display screen 20. . For example, the display screen 20 is provided with a specular reflective film on one side of the glass, and the specular reflective film is a mirror on the front side and a transparent glass on the back side, and the side on which the specular reflective film is disposed faces the display source 10.

The above-described half mirror 30 is used, for example, to simultaneously reflect and transmit light beams passing through the half mirror 30 on the side close to the display screen 20, and light beams on the side close to the retroreflector 40 on the other hand. Transmission will occur through the half mirror 30. The half mirror 30 is, for example, provided with a coating of a material having a predetermined light reflection and light transmission ratio on one side of the glass, and the surface faces the display screen 20.

In order to simplify the description, the light beam is refracted in the half mirror 30, and the incident beam is offset from the outgoing beam. Since the half mirror 30 is thin, the offset error is negligible here, and is omitted in the drawing. This part will not be described in detail below.

The half mirror 30 is disposed at an angle to the first semi-reflective lens 20, such as 45°. The retroreflector 40 is configured to refract and reflect the light beam from the side close to the second semi-reflective lens 30 through the retroreflector 40 to prevent adverse effects such as color spots, for example, when the normal mirror 40 is normalized. Upon entering the beam, the beam will shift and then normalize toward the retroreflector 40. An observation area 50 is provided in front of the retroreflector 40.

Referring to FIG. 2, in the present embodiment, the retroreflector 40 includes a reflective film 402 and a plurality of refractive structures 404. The reflective film 402 is a planar structure for reflecting the light beam incident on the reflective film 402. The plurality of refractive structures 404 are laid on the side of the reflective film near the reflective film near the half mirror, and the refractive structure 404 such as glass beads. , prism.

The process by which the beam is incident on the retroreflector 40 and exits the retroreflector 40 is as follows:

The light beam is incident on the refractive structure 404 along the first straight line D1, and the light beam is incident on the reflective film 402 inside the refractive structure 404 along the second straight line D2. The light beam is reflected along the third straight line D3 through the reflective film 402, and the light beam is emitted from the refractive structure 404. The refraction is emitted along the fourth straight line D4. The angle between the first straight line D1 and the second straight line D2 is equal to the angle between the third straight line D3 and the fourth straight line D4, and the first straight line D1 is parallel to the second straight line D2.

Referring to FIG. 3, in some embodiments, retroreflector 40 includes a plurality of side-by-side reflective surface units 406. The plurality of reflective surface units 406 include a first reflective surface 4062 and a second reflective surface 4064. The angle between the first reflective surface 4062 of each reflective surface unit 406 and the second reflective surface 4064 of the reflective surface unit 406 is 90. °, and the first reflecting surface 4062 and the second reflecting surface 4064 of the reflecting surface unit 406 are concave structures. The first reflective surface 4062 of each reflective surface unit 406 is disposed at an angle of 90° with the second reflective surface 4064 of an adjacent reflective surface unit 406, and the second reflective surface 4064 of each reflective surface unit 406 is adjacent to the adjacent one. The first reflecting surface 4062 of the reflecting surface unit 406 is disposed at an angle of 90°.

The light beam is reflected by the first reflecting surface 4062 of the reflecting surface unit 406 along the fifth straight line D5, and is reflected by the second reflecting surface 4064 of the reflecting surface unit 406 along the sixth straight line D6, and is emitted along the seventh straight line D7. The fifth straight line D5 is parallel with respect to the seventh straight line D7, the fifth straight line D5 is perpendicular to the sixth straight line D6, and the seventh straight line D7 is perpendicular to the sixth straight line D6. The observation area 50 is a binocular viewing position, and the observation area 50 is located on one side of the reflection surface of the half mirror 30. When the incident beam is reflected by the half mirror 30, the reflected beam is incident on the observation area 50.

Referring to FIG. 4, in the embodiment, the 3D imaging display system further includes a grating 502 between the half mirror 30 and the observation area 50, such as a strip lens.

In another embodiment, the 3D imaging display system further includes 3D glasses.

In use, the display source 10 emits a main beam that displays an image of the virtual scene, and the main beam is emitted perpendicular to the screen of the display source 10 along the first optical path A1. The main beam is transmitted through the display screen 20 and directed toward the half mirror 30. The main beam A1 is simultaneously transmitted and reflected when passing through the half mirror 30. The main beam A1 is divided into a first sub-beam and a second sub-beam. On the one hand, the first sub-beam is reflected by the half mirror 30, first The sub-beams are directed toward the viewing zone 50 along the second optical path A2, and the second optical path A2 is disposed at an angle to the first optical path A1, such as 90°. The user's binocular is located in the observation area 50, the first sub-beam is transmitted through the grating (not shown) or the user wears the 3D glasses, so that the first sub-beam is received by one of the user's left or right eyes, in the user's The brain forms a first image S1. On the other hand, the second sub-beam is transmitted through the half mirror 30, and is incident on the retroreflector 40 along the third optical path A3. The third optical path A3 is substantially coaxial with the first optical path A1. The second sub-beam is incident perpendicularly into the retroreflector 40, is refracted or reflected by the retroreflector 40, and is emitted from the side of the retroreflector 40. The second sub-beam is incident on the transflective mirror 30 along the fourth optical path A4. The four light path A4 is parallel to the third light path A3, and the position of the fourth light path A4 does not coincide with the relative position of the third light path A3. The second sub-beam is transmitted through the half mirror 30 and is directed toward the display screen 20 along the fourth optical path A4. The second sub-beam is incident perpendicularly on the display screen 20 along the fourth optical path A4, and is reflected by the display screen 20 to emit a second sub-beam along the fifth optical path A5. The direction of the fifth optical path A5 is opposite to the direction of the fourth optical path A4. The two sub-beams are directed toward the half mirror 30. The second sub-beam is reflected by the transflective lens 30, and is directed toward the observation area 50 along the sixth optical path A6. The sixth optical path A6 and the second optical path A5 are disposed at an angle, for example, 90°, and the sixth optical path A6 is opposite to the first The two optical paths A2 are parallel, the position is shifted, and the second sub-beam path sixth optical path A6 is incident on the observation area 50. The second sub-beam passes through the grating 502 or the user receives the 3D glasses, so that the first sub-beam is received by the other of the user's left or right eyes, forming a second image S2 in the user's brain; the first image S1 and the first image The two images S2 have a parallax displacement, and are superimposed to form a three-dimensional image in the human brain, and the three-dimensional image is an image of the virtual scene.

Compared with the prior art, the 3D imaging display system only needs one display source to realize 3D projection, and the positions of the first image and the second image are relatively accurate.

Referring to FIG. 5, the 3D imaging display system 200 provided by the second embodiment of the present application is substantially the same as the 3D imaging display system 100 provided by the first embodiment, except that the 3D imaging display system 200 further includes a pitch adjustment device 60, and the adjustment The distance device 60 is fixedly disposed relative to the display source 10.

The distance adjusting device 60 is configured to enable the retroreflector 40 to translate in a direction normal to the retroreflector 40. The distance adjusting device 60 is, for example, a linear motor, and the output shaft of the linear motor is coupled to the retroreflective mirror 40.

In use, the distance between the retroreflector 30 and the display source 10 can be adjusted by the distance adjusting device 60 for adjusting the depth of field of the second image S2.

Depth of field refers to the range of distances before and after the subject is measured by imaging that can obtain a clear image at the front of the camera lens or other imager. The distance between the lens and the subject is an important factor affecting the depth of field.

Compared with the prior art, the distance between the retroreflector and the display source is appropriately adjusted by the distance adjusting device to extend the optical path of the second sub-beam, thereby adjusting the depth of field of the second image, and superimposing with the first image to form a three-dimensional image. A more layered stereoscopic display is achieved.

In addition, the virtual scene image display is more realistic and natural, and does not affect the brightness, contrast, hue and other parameters of the three-dimensional image.

Referring to FIG. 6, the 3D imaging display system 300 provided by the third embodiment of the present application is substantially the same as the 3D imaging display system 100 of the first embodiment, except for the structure of the half mirror 31 and the position of the display screen 21.

The 3D imaging display system 300 includes a display source 10, a retroreflector 40, a display screen 21, and a half mirror 31. The retroreflector 40 is disposed in parallel with the display source 10, and the second transflective mirror 31 is provided. Between the display source 10 and the retroreflector 40, and the half mirror 31 is disposed at an angle with the retroreflector 40, the display screen 21, the half mirror 31 and the retroreflector 40 are triangularly arranged and displayed. The screen 21 is disposed perpendicular to the retroreflector 40.

The display screen 21 is used to reflect a light beam that is directed toward the display screen 21 on the side of the half mirror 31, such as a plane mirror.

The above-described half mirror 31 is used for transmitting and reflecting a light beam that is incident on the half mirror 31 on either side. For example, a coating of a material having a predetermined ratio of light reflection and light transmission is provided on both sides of the glass.

In use, the display source 10 emits a main beam that displays an image of the virtual scene, and the main beam is emitted perpendicular to the screen of the display source 10 along the first optical path B1. When the main beam passes through the half mirror 31, transmission and reflection occur simultaneously, and the main beam is divided into a first sub-beam and a second sub-beam. On the one hand, the first sub-beam is reflected by the half mirror 31 along the second optical path. B2 is directed to the observation zone 50, and the second optical path B2 is disposed at an angle to the first optical path B1, such as 90°. The user's binocular is located in the observation area 50, the first sub-beam passes through the grating 502 or the user wears the 3D glasses, so that the first sub-beam is received by one of the user's left or right eyes, forming a first in the user's brain. On the other hand, the second sub-beam is transmitted through the half mirror 31, and is incident on the retroreflector 40 along the third optical path B3. The third optical path B3 is substantially coaxial with the first optical path B1. The second sub-beam is incident perpendicularly into the retroreflector 40, is refracted or reflected by the retroreflector 40, and is emitted from the side of the retroreflector 40. The second sub-beam is incident on the transflective mirror 31 along the fourth optical path B4. The four-light path A4 is parallel to the third light path B3, and the position of the fourth light path B4 does not coincide with the relative position of the third light path B3. The second sub-beam is reflected by the half mirror 31, and is directed toward the display screen 21 along the fifth optical path B5. The fifth optical path B5 is disposed at an angle to the fourth optical path B4, for example, 90°. The second sub-beam is incident perpendicularly on the display screen 21 along the fifth optical path B5, and is reflected by the display screen 20, and is directed along the sixth optical path B6 toward the half mirror 31, the direction of the sixth optical path B6 and the direction of the fifth optical path B4. in contrast. The second sub-beam is transmitted through the half mirror 31 and continues to be directed toward the observation area 50 along the sixth optical path B6. The second sub-beam passes through the grating 502 or the user wears the 3D glasses, so that the first sub-beam is received by the other of the user's left or right eye, forming a second image S2 in the user's brain;

The first image S1 and the second image S2 have a parallax displacement, and a three-dimensional image is superimposed on the human brain, and the three-dimensional image is an image of the virtual scene.

The 3D imaging display system 300 provided by the embodiment of the present application can also implement dividing the main beam into the first sub-beam and the second sub-beam, and the first sub-beam and the second sub-beam are in the same direction and relatively offset in position to implement the first image. S1 and the second image S2 generate parallax displacements, which are superimposed to form a three-dimensional image.

In the present embodiment, the

3D imaging device

100, 200, 300 further includes a high speed rotating mirror (not shown), and a high speed rotating mirror (not shown) is disposed in the viewing area 50.

The high-speed rotating mirror (not shown) rotates at a high speed around its own rotating shaft, and its own rotating shaft is parallel to the display screen 21 and the half mirror 31 at the same time, and the high-speed rotating mirror (not shown) is used for the half mirror. The second sub-beam of the 30, 31 side that is incident on the high-speed rotating mirror (not shown) is reflected to the observation area 50 at different angles. Among them, the rotation speed of the high-speed rotating mirror (not shown) is as large as possible, and at the same time, the high-speed rotating mirror (not shown) is provided with reflecting surfaces on both sides, for example, the non-reflecting surfaces of the two mirrors are attached.

By setting a high-speed rotating mirror (not shown) on the display screen, so that no matter which angle the user observes in the observation area, the user's binocular receives the first sub-beam and the second sub-beam due to the visual persistence function, thereby See an image showing the virtual scene displayed by source 10.

In the present embodiment, the half mirror 30 is rotatable, and its rotation axis is parallel to the half mirror 30 and the retroreflector 40.

By arranging the half mirror 30 to be rotatable, the first sub-beam and the second sub-beam can be directed to the observation area 50 in different directions, so that no matter which angle the user observes in the observation area 50, due to the persistence of vision In effect, the user's binoculars receive the first sub-beam and the second sub-beam, thereby seeing an image of the virtual scene displayed by the display source 10.

The above description is only the embodiment of the present application, and thus does not limit the scope of the patent application, and the equivalent structure or equivalent process transformation of the specification and the drawings of the present application, or directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of this application.

Claims

A 3D imaging display system, comprising: a display source, a display screen, a half mirror, and a retroreflector;

The display source is disposed opposite to the retroreflector, the transflective mirror is disposed between the display source and the retroreflector, and the semi-transparent mirror and the retroreflector are An angle is set, the observation area is disposed in front of the half mirror;

The display source is configured to emit a main beam of a display image, the main beam is transmitted and reflected by the half mirror, and the main beam is divided into a first sub-beam and a second sub-beam, the first sub-beam is The half mirror is reflected to the observation area to form a first image; the second sub beam is transmitted through the half mirror to the retro mirror, the retro mirror makes the second The sub-beams are offset and are emitted in opposite directions, the second sub-beams being transmitted to the transflective mirror for transmission or reflection, causing the second sub-beams to impinge on the display screen, the display screen causing the The second sub-beam is reflected back to the half mirror, and the half mirror reflects or transmits the second sub-beam to the observation area to form a second image; the first image and the second image may be superposed Three-dimensional image.
A 3D imaging display system according to claim 1, wherein said 3D imaging display system further comprises a pitching device; said distance adjusting device is coupled to said retroreflecting mirror; said distance adjusting device is for adjusting said The distance between the retroreflector and the display source.
A 3D imaging display system according to claim 1, wherein said display screen is disposed between said half mirror and said display source; and when said second sub-beam is from a side of said retroreflector When the semi-transparent mirror is incident, the second sub-beam will pass through the half mirror; when the main beam or the second sub-beam is emitted from the side of the display screen to the half When the half mirror is passed through, the main beam or the second sub beam will simultaneously transmit and reflect.
The 3D imaging display system according to claim 2, wherein the side of the half mirror facing away from the display source is plated with a material having a predetermined light reflection and transmission ratio.
The 3D imaging display system according to claim 2, wherein the display screen is further configured to transmit the main light beam directed from the display source side to the display screen through the display screen.
The 3D imaging display system according to claim 4, wherein a side of the display screen adjacent to the display source is plated with a specular reflective film.
The 3D imaging display system according to claim 1, wherein the display screen, the half mirror and the retroreflector are triangularly distributed;

When the second sub-beam is incident from the side of the retroreflector to the half mirror, the second sub-beam will be reflected to the display screen;

The second sub-beam is transmitted to the viewing zone when the second sub-beam is incident from the display side to the half mirror.
The 3D imaging display system according to claim 6, wherein both sides of the transflective mirror are plated with a material having a predetermined light reflection and transmission ratio.
The 3D imaging display system according to any one of claims 1 to 7, wherein the 3D imaging display device further comprises a high speed rotating mirror;

The high speed rotating mirror is disposed between the observation area and the half mirror;

The high-speed rotating mirror can rotate at a high speed around its own rotating shaft, its own rotating shaft is parallel to the display screen and the half mirror, and the high-speed rotating mirror is used for the side of the half mirror The second sub-beams incident on the high speed mirror are reflected to the viewing zone at different angles.
A 3D imaging display device comprising the 3D imaging display system of any one of claims 1 to 9.