CN114895480B - Wide viewing angle integrated imaging 3D display device - Google Patents
Wide viewing angle integrated imaging 3D display device Download PDFInfo
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- CN114895480B CN114895480B CN202210535749.0A CN202210535749A CN114895480B CN 114895480 B CN114895480 B CN 114895480B CN 202210535749 A CN202210535749 A CN 202210535749A CN 114895480 B CN114895480 B CN 114895480B
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- slit grating
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- 238000003384 imaging method Methods 0.000 title claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 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
- G02B30/22—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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- 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
- G02B30/30—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 parallax barriers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention discloses a wide-view integrated imaging 3D display device, which comprises a display screen, a slit grating and a pinhole array; the display screen, the slit grating and the pinhole array are sequentially arranged in parallel; the centers of the display screen, the slit grating and the pinhole array are correspondingly aligned; the display screen is used for displaying the image element array; the slit grating is used for modulating an optical path; the pinhole array is used for imaging; the number of image elements in the horizontal direction is equal to the number of pinholes in the horizontal direction; the number of picture elements in the vertical direction is equal to the number of pinholes in the vertical direction; the number of slits is equal to the number of pinholes in the horizontal direction; a part of light rays emitted by the image elements are projected to an imaging area to reconstruct a 3D image through corresponding slits and pinholes in sequence; the imaging areas of each image element coincide at an optimal viewing distance; the horizontal viewing angle is independent of the number of pinholes and is proportional to the width of the pinhole aperture.
Description
Technical Field
The present invention relates to 3D display technology, and more particularly, to a wide viewing angle integrated imaging 3D display device.
Background
The prior art proposal provides a wide-view integrated imaging 3D display method, which realizes 3D display through integrated imaging display equipment; the integrated imaging display device comprises a display screen and a pinhole array; the pinhole array is positioned in front of the display screen; the center of the pinhole array is correspondingly aligned with the center of the display screen; the display screen is used for displaying the discrete image element array; the discrete image element array comprises a plurality of image elements which are arranged in a discrete manner; the widths of the image elements are the same; the interval widths of adjacent image elements are the same; the width q of the picture element, the interval width a of the adjacent picture elements and the pitch p of the pinholes satisfy the following
Wherein l is the optimal viewing distance, g is the distance between the display screen and the pinhole array; the width q of the picture element and the interval width a of the adjacent picture element are respectively
Wherein w is the aperture width of the pinhole; each image element reconstructs a 3D image through a pinhole corresponding to the image element, and the imaging areas of each image element coincide at an optimal viewing distance. At the optimal viewing distance, the horizontal viewing angle θ of the existing wide viewing angle integrated imaging 3D display is
. From the above formula, the horizontal viewing angle in the prior art solution is independent of the number of pinholes and also independent of the aperture width of the pinholes.
Disclosure of Invention
The invention provides a wide-view integrated imaging 3D display device, which is shown in figure 1 and is characterized by comprising a display screen, a slit grating and a pinhole array; the display screen, the slit grating and the pinhole array are sequentially arranged in parallel; the centers of the display screen, the slit grating and the pinhole array are correspondingly aligned; the display screen is used for displaying the image element array; the slit grating is used for modulating an optical path; the pinhole array is used for imaging; the number of image elements in the horizontal direction is equal to the number of pinholes in the horizontal direction; the number of picture elements in the vertical direction is equal to the number of pinholes in the vertical direction; the number of slits is equal to the number of pinholes in the horizontal direction; the pitch q of the slit and the pitch s of the pinhole satisfy the following
（1）
（2）
Wherein p is the pitch of the image elements, l is the optimal viewing distance, g is the distance between the display screen and the pinhole array, and d is the distance between the slit grating and the pinhole array; a part of light rays emitted by the image elements are projected to an imaging area to reconstruct a 3D image through corresponding slits and pinholes in sequence; the imaging area of each picture element coincides at the optimal viewing distance.
Preferably, the aperture width w of the slit and the distance d between the slit grating and the pinhole array satisfy the following formula
（3）
（4）
Where q is the pitch of the slit, s is the pitch of the pinhole, v is the aperture width of the pinhole, l is the optimal viewing distance, and g is the separation of the display screen from the pinhole array.
Preferably, at the optimal viewing distance, the horizontal viewing angle θ of the 3D display device is
（5）
Wherein p is the pitch of the picture elements, v is the aperture width of the pinholes, g is the spacing between the display screen and the pinhole array; the horizontal viewing angle is independent of the number of pinholes and is proportional to the width of the pinhole aperture.
Preferably, the vertical widths of the display screen, the slit grating and the pinhole array are all the same.
Drawings
FIG. 1 is a schematic diagram of the present invention
The graphic reference numerals in the above figures are:
1. and 2, a display screen, a slit grating and 3, a pinhole array.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of an exemplary embodiment of the present 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 wide-view integrated imaging 3D display device, which is shown in figure 1 and is characterized by comprising a display screen, a slit grating and a pinhole array; the display screen, the slit grating and the pinhole array are sequentially arranged in parallel; the centers of the display screen, the slit grating and the pinhole array are correspondingly aligned; the display screen is used for displaying the image element array; the slit grating is used for modulating an optical path; the pinhole array is used for imaging; the number of image elements in the horizontal direction is equal to the number of pinholes in the horizontal direction; the number of picture elements in the vertical direction is equal to the number of pinholes in the vertical direction; the number of slits is equal to the number of pinholes in the horizontal direction; the pitch q of the slit and the pitch s of the pinhole satisfy the following
（1）
（2）
Wherein p is the pitch of the image elements, l is the optimal viewing distance, g is the distance between the display screen and the pinhole array, and d is the distance between the slit grating and the pinhole array; a part of light rays emitted by the image elements are projected to an imaging area to reconstruct a 3D image through corresponding slits and pinholes in sequence; the imaging area of each picture element coincides at the optimal viewing distance.
Preferably, the aperture width w of the slit and the distance d between the slit grating and the pinhole array satisfy the following formula
（3）
（4）
Where q is the pitch of the slit, s is the pitch of the pinhole, v is the aperture width of the pinhole, l is the optimal viewing distance, and g is the separation of the display screen from the pinhole array.
Preferably, at the optimal viewing distance, the horizontal viewing angle θ of the 3D display device is
（5）
Wherein p is the pitch of the picture elements, v is the aperture width of the pinholes, g is the spacing between the display screen and the pinhole array; the horizontal viewing angle is independent of the number of pinholes and is proportional to the width of the pinhole aperture.
Preferably, the vertical widths of the display screen, the slit grating and the pinhole array are all the same.
The pitch of the image element is 5.25mm, the aperture width of the pinhole is 1mm, the distance between the display screen and the pinhole array is 5mm, the distance between the slit grating and the pinhole array is 3mm, and the optimal viewing distance is 100mm, and the pitch of the slit is 5.15mm calculated by the formula (1); the pitch of the pinholes is 5mm calculated from equation (2); the aperture width of the slit calculated from formula (3) was 2.75mm; the horizontal viewing angle of the 3D display device at the optimum viewing distance is calculated by equation (5) to be 64 °. The horizontal viewing angle of the prior art solution based on the above parameters is 54 °.
Claims (3)
1. The wide-view integrated imaging 3D display device is characterized by comprising a display screen, a slit grating and a pinhole array; the display screen, the slit grating and the pinhole array are sequentially arranged in parallel; the centers of the display screen, the slit grating and the pinhole array are correspondingly aligned; the display screen is used for displaying the image element array; the slit grating is used for modulating an optical path; the pinhole array is used for imaging; the number of image elements in the horizontal direction is equal to the number of pinholes in the horizontal direction; the number of picture elements in the vertical direction is equal to the number of pinholes in the vertical direction; the number of slits is equal to the number of pinholes in the horizontal direction; the pitch q of the slit, the pitch s of the pinhole, the aperture width w of the slit and the distance d between the slit grating and the pinhole array satisfy the following conditions
Wherein p is the pitch of the picture elements, v is the aperture width of the pinholes, l is the optimal viewing distance, g is the spacing between the display screen and the pinhole array; a part of light rays emitted by the image elements are projected to an imaging area to reconstruct a 3D image through corresponding slits and pinholes in sequence; the imaging area of each picture element coincides at the optimal viewing distance.
2. The wide-viewing angle integrated imaging 3D display device of claim 1, wherein at the optimal viewing distance, the horizontal viewing angle θ of the 3D display device is
Wherein p is the pitch of the picture elements, v is the aperture width of the pinholes, g is the spacing between the display screen and the pinhole array; the horizontal viewing angle is independent of the number of pinholes and is proportional to the width of the pinhole aperture.
3. The wide-viewing angle integrated imaging 3D display device of claim 1, wherein the vertical widths of the display screen, the slit grating, and the pinhole array are all the same.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210535749.0A CN114895480B (en) | 2022-05-18 | 2022-05-18 | Wide viewing angle integrated imaging 3D display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210535749.0A CN114895480B (en) | 2022-05-18 | 2022-05-18 | Wide viewing angle integrated imaging 3D display device |
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| CN114895480A CN114895480A (en) | 2022-08-12 |
| CN114895480B true CN114895480B (en) | 2024-05-10 |
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| CA2359741A1 (en) * | 2001-10-02 | 2002-07-07 | Zhao Hong Zhang | Spatial three-dimensional image display device |
| WO2013143199A1 (en) * | 2012-03-31 | 2013-10-03 | 福州大学 | Led-based double-faced grating three-dimensional display device and manufacturing method thereof |
| CN106291951A (en) * | 2015-05-28 | 2017-01-04 | 极迈电子科技（上海）有限公司 | One display screen shows the method for two non-interfering 2D images simultaneously |
| CN207369212U (en) * | 2017-05-23 | 2018-05-15 | 成都工业学院 | Wide viewing angle two dimension integration imaging 3D display device |
| CN110221443A (en) * | 2019-05-25 | 2019-09-10 | 成都工业学院 | One-dimensional integrated imaging 3D display device based on gradual change slit grating |
| CN112859374A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | 3D display method based on gradient aperture slit grating |
| CN112859372A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | Double-vision 3D display method based on composite pinhole array |
| CN113703179A (en) * | 2021-09-11 | 2021-11-26 | 成都工业学院 | One-dimensional integrated imaging 3D display device based on dual-polarization slit grating |
| CN113741048A (en) * | 2021-09-11 | 2021-12-03 | 成都工业学院 | One-dimensional integrated imaging 3D display device with high imaging efficiency and wide viewing angle |
-
2022
- 2022-05-18 CN CN202210535749.0A patent/CN114895480B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2359741A1 (en) * | 2001-10-02 | 2002-07-07 | Zhao Hong Zhang | Spatial three-dimensional image display device |
| WO2013143199A1 (en) * | 2012-03-31 | 2013-10-03 | 福州大学 | Led-based double-faced grating three-dimensional display device and manufacturing method thereof |
| CN106291951A (en) * | 2015-05-28 | 2017-01-04 | 极迈电子科技（上海）有限公司 | One display screen shows the method for two non-interfering 2D images simultaneously |
| CN207369212U (en) * | 2017-05-23 | 2018-05-15 | 成都工业学院 | Wide viewing angle two dimension integration imaging 3D display device |
| CN110221443A (en) * | 2019-05-25 | 2019-09-10 | 成都工业学院 | One-dimensional integrated imaging 3D display device based on gradual change slit grating |
| CN112859374A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | 3D display method based on gradient aperture slit grating |
| CN112859372A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | Double-vision 3D display method based on composite pinhole array |
| CN113703179A (en) * | 2021-09-11 | 2021-11-26 | 成都工业学院 | One-dimensional integrated imaging 3D display device based on dual-polarization slit grating |
| CN113741048A (en) * | 2021-09-11 | 2021-12-03 | 成都工业学院 | One-dimensional integrated imaging 3D display device with high imaging efficiency and wide viewing angle |
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