CN109254412B - Double-vision 3D display device based on rectangular pinhole array - Google Patents
Double-vision 3D display device based on rectangular pinhole array Download PDFInfo
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- CN109254412B CN109254412B CN201811386708.XA CN201811386708A CN109254412B CN 109254412 B CN109254412 B CN 109254412B CN 201811386708 A CN201811386708 A CN 201811386708A CN 109254412 B CN109254412 B CN 109254412B
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- 208000003164 Diplopia Diseases 0.000 title claims abstract description 7
- 208000029444 double vision Diseases 0.000 title claims abstract description 7
- 230000010287 polarization Effects 0.000 claims abstract description 56
- 239000011521 glass Substances 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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- Optics & Photonics (AREA)
Abstract
The invention discloses a double-vision 3D display device based on a rectangular pinhole array, which comprises a display screen, a polarization grating, a rectangular pinhole array, polarization glasses 1 and polarization glasses 2; the polarization grating is formed by alternately arranging polarization units 1 and polarization units 2, wherein the polarization directions of the polarization units 1 and the polarization units 2 are orthogonal; the polarization direction of the polarized glasses 1 is the same as that of the polarized unit 1, and the polarization direction of the polarized glasses 2 is the same as that of the polarized unit 2; the display screen is used for displaying a micro-image array, and the micro-image array consists of image elements 1 and 2; the horizontal aperture width of the rectangular pinhole array is not equal to the vertical aperture width, and the horizontal thickness of the rectangular pinhole array is not equal to the vertical thickness, so that the horizontal optical efficiency is equal to the vertical optical efficiency.
Description
Technical Field
The present invention relates to 3D displays, and more particularly to a dual view 3D display device based on a rectangular pinhole array.
Background
The integrated imaging dual-view 3D display is a fusion of the dual-view display technology and the integrated imaging 3D display technology. It can make the viewer see different 3D pictures in different viewing directions, and is one of the hot spot technologies of current 3D display. The existing integrated imaging double-vision 3D display based on the rectangular pinhole array has the problem that the horizontal optical efficiency is not equal to the vertical optical efficiency.
Disclosure of Invention
The invention provides a double-vision 3D display device based on a rectangular pinhole array, which is shown in figures 1 and 2 and is characterized by comprising a display screen, a polarization grating, a rectangular pinhole array, a polarization glasses 1 and a polarization glasses 2; the display screen, the polarization grating and the rectangular pinhole array are arranged in parallel and aligned correspondingly; the polarization grating is attached to the display screen; as shown in fig. 3, the polarization grating is formed by alternately arranging polarization units 1 and polarization units 2, wherein the polarization units 1 are orthogonal to the polarization direction of the polarization units 2; the polarization direction of the polarized glasses 1 is the same as that of the polarized unit 1, and the polarization direction of the polarized glasses 2 is the same as that of the polarized unit 2; the display screen is used for displaying a micro-image array, and the micro-image array consists of image elements 1 and 2, as shown in figure 4; the horizontal aperture width of the rectangular pinhole array is not equal to the vertical aperture width, and the horizontal thickness of the rectangular pinhole array is not equal to the vertical thickness;
the horizontal aperture width w of the rectangular pinhole is:
wherein p is the pitch of the rectangular pinholes and the image elements, s is the horizontal distance between the rectangular pinholes and the display screen, t is the vertical distance between the rectangular pinholes and the display screen, a is the horizontal thickness of the rectangular pinholes, b is the vertical thickness of the rectangular pinholes, and v is the vertical aperture width of the rectangular pinholes;
horizontal optical efficiencyAnd vertical optical efficiency->The method comprises the following steps:
drawings
FIG. 1 is a diagram showing the structure and horizontal parameters of a dual-view 3D display device according to the present invention
FIG. 2 is a diagram showing the structure and vertical parameters of a dual-view 3D display device according to the present invention
FIG. 3 is a schematic diagram showing the arrangement of the polarization grating according to the present invention
FIG. 4 is a schematic diagram showing the arrangement of a microimage array according to the present invention
The graphic reference numerals in the above figures are:
1 display screen, 2 polarization grating, 3 rectangular pinhole array, 4 polarization glasses 1,5 polarization glasses 2,6 polarization unit 1,7 polarization unit 2,8 microimage array, 9 picture element 1, 10 picture element 2.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of an exemplary embodiment of the invention. It is noted that the following examples are given for the purpose of illustration only and are not to be construed as limiting the scope of the invention, since numerous insubstantial modifications and adaptations of the invention will be within the scope of the invention as viewed by one skilled in the art from the foregoing disclosure.
The invention provides a double-vision 3D display device based on a rectangular pinhole array, which is shown in figures 1 and 2 and is characterized by comprising a display screen, a polarization grating, a rectangular pinhole array, a polarization glasses 1 and a polarization glasses 2; the display screen, the polarization grating and the rectangular pinhole array are arranged in parallel and aligned correspondingly; the polarization grating is attached to the display screen; as shown in fig. 3, the polarization grating is formed by alternately arranging polarization units 1 and polarization units 2, wherein the polarization units 1 are orthogonal to the polarization direction of the polarization units 2; the polarization direction of the polarized glasses 1 is the same as that of the polarized unit 1, and the polarization direction of the polarized glasses 2 is the same as that of the polarized unit 2; the display screen is used for displaying a micro-image array, and the micro-image array consists of image elements 1 and 2, as shown in figure 4; the horizontal aperture width of the rectangular pinhole array is not equal to the vertical aperture width, and the horizontal thickness of the rectangular pinhole array is not equal to the vertical thickness;
the horizontal aperture width w of the rectangular pinhole is:
wherein p is the pitch of the rectangular pinholes and the image elements, s is the horizontal distance between the rectangular pinholes and the display screen, t is the vertical distance between the rectangular pinholes and the display screen, a is the horizontal thickness of the rectangular pinholes, b is the vertical thickness of the rectangular pinholes, and v is the vertical aperture width of the rectangular pinholes;
horizontal optical efficiencyAnd vertical optical efficiency->The method comprises the following steps:
the pitch of the image element 1, the pitch of the image element 2, the pitch of the polarizing unit 1, the pitch of the polarizing unit 2 and the pitch of the rectangular pinholes are p=10 mm, the horizontal distance between the rectangular pinholes and the display screen is g=10 mm, the vertical distance between the rectangular pinholes and the display screen is d=2 mm, the horizontal thickness of the rectangular pinholes is a=1 mm, the vertical thickness of the rectangular pinholes is b=3 mm, the vertical aperture width of the rectangular pinholes is v=4 mm, the horizontal aperture width of the rectangular pinhole array is 2mm obtained by calculating according to the formula (1), and the horizontal optical efficiency and the vertical optical efficiency are both 9% by calculating according to the formula (2).
Claims (1)
1. The double-vision 3D display device based on the rectangular pinhole array is characterized by comprising a display screen, a polarization grating, the rectangular pinhole array, polarization glasses 1 and polarization glasses 2; the display screen, the polarization grating and the rectangular pinhole array are arranged in parallel and aligned correspondingly; the polarization grating is attached to the display screen; the polarization grating is formed by alternately arranging polarization units 1 and polarization units 2, wherein the polarization directions of the polarization units 1 and the polarization units 2 are orthogonal; the polarization direction of the polarized glasses 1 is the same as that of the polarized unit 1, and the polarization direction of the polarized glasses 2 is the same as that of the polarized unit 2; the display screen is used for displaying a micro-image array, and the micro-image array consists of image elements 1 and 2; the horizontal aperture width of the rectangular pinhole array is not equal to the vertical aperture width, and the horizontal thickness of the rectangular pinhole array is not equal to the vertical thickness; the horizontal aperture width w of the rectangular pinhole is:
wherein p is the pitch of the rectangular pinholes and the image elements, s is the horizontal distance between the rectangular pinholes and the display screen, t is the vertical distance between the rectangular pinholes and the display screen, a is the horizontal thickness of the rectangular pinholes, b is the vertical thickness of the rectangular pinholes, and v is the vertical aperture width of the rectangular pinholes; horizontal optical efficiencyAnd vertical optical efficiency->The method comprises the following steps:
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| CN201811386708.XA CN109254412B (en) | 2018-11-20 | 2018-11-20 | Double-vision 3D display device based on rectangular pinhole array |
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| CN201811386708.XA CN109254412B (en) | 2018-11-20 | 2018-11-20 | Double-vision 3D display device based on rectangular pinhole array |
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| CN109254412A CN109254412A (en) | 2019-01-22 |
| CN109254412B true CN109254412B (en) | 2024-03-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298540A (en) * | 2018-11-20 | 2019-02-01 | 成都工业学院 | Integration imaging 3D display device based on polarization arrays and rectangle pin hole |
| CN110099272B (en) * | 2019-05-25 | 2023-07-07 | 成都航空职业技术学院 | Integrated imaging double-vision 3D display device and method based on composite pinhole array |
| CN110389454B (en) * | 2019-07-28 | 2024-03-26 | 成都航空职业技术学院 | Integrated imaging double-vision 3D display device based on rectangular polarization array |
| CN110412771B (en) * | 2019-07-28 | 2024-03-15 | 成都工业学院 | Integrated imaging double-vision 3D display device based on micro-lens array |
| CN113031297B (en) * | 2021-04-01 | 2022-11-15 | 成都航空职业技术学院 | Double-vision 3D display method based on polarized glasses |
| CN114895482B (en) * | 2022-05-18 | 2023-07-25 | 成都航空职业技术学院 | 3D display device based on slit grating and composite pinhole array |
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