CN101866057A - A Planar Projection Three-dimensional Display Device Based on Double Microlens Array - Google Patents
A Planar Projection Three-dimensional Display Device Based on Double Microlens Array Download PDFInfo
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- CN101866057A CN101866057A CN201010190047A CN201010190047A CN101866057A CN 101866057 A CN101866057 A CN 101866057A CN 201010190047 A CN201010190047 A CN 201010190047A CN 201010190047 A CN201010190047 A CN 201010190047A CN 101866057 A CN101866057 A CN 101866057A
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- microlens array
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Abstract
一种基于双微透镜阵列的平面投影三维显示装置，属于图像显示技术领域中涉及的一种三维显示装置。要解决的技术问题是：提供一种基于双微透镜阵列的平面投影三维显示装置。解决的技术方案为：包括投影仪组和三维显示装置；三维显示装置包括：正面微透镜阵列、漫射屏、背面微透镜阵列；投影仪组中投影仪的光轴相互平行且垂直于三维显示装置的显示面；投影仪组的纵横排列阵列跟正、背微透镜的纵横排列阵列一致；投影仪组的纵横阵列中心位于三维显示装置的中心；漫射屏夹在正面微透镜阵列和背面微透镜阵列之间，正面微透镜阵列和背面微透镜阵列所有参数完全相同，正面微透镜阵列和背面微透镜阵列在于漫射屏粘合匹配时，需正、背微透镜一一对应。
A plane projection three-dimensional display device based on a double microlens array belongs to a three-dimensional display device in the technical field of image display. The technical problem to be solved is to provide a plane projection three-dimensional display device based on a double microlens array. The technical solution is to: include a projector group and a three-dimensional display device; the three-dimensional display device includes: a front microlens array, a diffusion screen, and a rear microlens array; the optical axes of the projectors in the projector group are parallel to each other and perpendicular to the three-dimensional display The display surface of the device; the vertical and horizontal array of the projector group is consistent with the vertical and horizontal array of the front and back microlenses; the center of the vertical and horizontal array of the projector group is located at the center of the three-dimensional display device; the diffusion screen is sandwiched between the front microlens array and the back microlens array Between the lens arrays, all the parameters of the front microlens array and the back microlens array are exactly the same. When the front microlens array and the back microlens array are bonded and matched in the diffusion screen, the front and back microlenses need to correspond one-to-one.
Description
Technical field:
The invention belongs to a kind of planar projection three-dimensional display device that relates in the image display technology field.
Background technology:
The principal feature of plane projection 3-D display is the large scale true three-dimension sense of image, and the beholder need not can see in the viewing area, plane by other utensil the information of large scale 3-D view.
The prior art the most approaching with the present invention is Nanjing University---the multi-view auto stereo projection system.This system comprises projector group 1 and three-dimensional display apparatus as shown in Figure 1.Three-dimensional display apparatus comprises front grating 2, diffusing screen 3 and back side grating 4, the both sides that are distributed in three-dimensional display apparatus of beholder and projector group 1 symmetry.Front grating 2 is the same cylindrical gratings of parameter with back side grating 4, and each raster unit of cylindrical grating is equivalent to a cylindrical lens.Front grating 2 and the 4 grid line strictnesses of back side grating are corresponding one by one, and diffusing screen 3 is close in the centre.Projector group 1 is positioned at a side of three-dimensional display apparatus, projector group 1 has different distance according to different post lens curvatures with bore apart from front grating 2, plane, projector group 1 place is vertical with front grating 2 cylinder directions and make projector group 1 view field be positioned at the centre position of three-dimensional display apparatus as far as possible, and distance is smaller or equal to eyes interpupillary distance 65mm between the projector.One group of image of projector group 1 projection with transverse parallaxes, by front grating 2 each anaglyph compression is isolated on the diffusing screen 3, the image of diffusing screen 3 relays by back side grating 4 and mirrors, and the beholder can see having the large scale three-dimensional image of parallax in length and breadth in field of view.
The shortcoming of multi-view auto stereo projection system is: have only laterally to have parallax, have spinning sensation during observation, orientation ratio is difficult to realize between the grating of the positive back side.
Summary of the invention:
In order to overcome the defective that prior art exists, the objective of the invention is to solve the technical matters that the multi-view auto stereo projection system has only transverse parallaxes, increase the parallax dimension of 3-D view, improve the sense of reality of 3-D view, a kind of double micro-lens array three-dimensional display apparatus of ad hoc meter.
The technical problem to be solved in the present invention is: a kind of planar projection three-dimensional display device based on double micro-lens array is provided.The technical scheme of technical solution problem comprises projector group 5 and three-dimensional display apparatus as shown in Figure 2.Three-dimensional display apparatus comprises: front microlens array 6, diffusing screen 7, back side microlens array 8; The optical axis of projector is parallel to each other and perpendicular to the display surface of three-dimensional display apparatus in the projector group 5, and beholder and projector group 5 are respectively in the both sides of three-dimensional display apparatus; The arranged array in length and breadth of projector group 5 is just being followed, the back of the body is followed the lenticular unanimity of arranged array in length and breadth; Distance is smaller or equal to the mean value 65mm of human eye interpupillary distance between the projector lens, and projector group 5 determines that according to different lenticule curvature and bore the array center in length and breadth of projector group 5 is positioned at the center of three-dimensional display apparatus with the distance of front microlens array 6; Diffusing screen 7 is clipped between front microlens array 6 and the back side microlens array 8, front microlens array 6 and back side microlens array 8 all parameters are identical, when front microlens array 6 and back side microlens array 8 are the bonding coupling of diffusing screen 7, just needing, back of the body lenticule is corresponding one by one.
Principle of work is: 5 projections of projector group go out to have the set of diagrams picture of parallax in length and breadth, by front microlens array 6 each anaglyph compression is isolated on the diffusing screen 7, the image of diffusing screen 7 relays by back side microlens array 8 and mirrors, and the beholder can see having the large scale three-dimensional image of parallax in length and breadth in field of view.
Good effect of the present invention: this planar projection three-dimensional display device, can many people, multi-angle, simultaneously, bore hole observes, and need not the help that helps visual equipment by any because this system has parallax in length and breadth, three-dimensional stereopsis is strong.
Description of drawings:
Fig. 1 is a prior art Nanjing University---multi-view auto stereo projection system putting position synoptic diagram
Fig. 2 is the structural representation of the projection three-dimensional display device based on double micro-lens array of the present invention
Embodiment
The present invention implements by technical scheme shown in Figure 2.Wherein, the disparity map image source comes the analog camera array to obtain one group of two dimension disparity map image source with 3d software 3dmax.Projector group 5 adopts DLP high definition projector, and front microlens array 6 and back side microlens array 8 adopt microlens array that Zeiss, Germany produces.Diffusing screen 7 provides for TIX.
Projector group 5 is by square formation arrangement in length and breadth, the distance of the three-dimensional display apparatus that distance is made of front microlens array 6, diffusing screen 7, back side microlens array 8 according to just, the lenticular curvature of the back of the body and bore decide, the distance employing between the projector of array is smaller or equal to the mean distance 65mm of human eye interpupillary distance in length and breadth.
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010190047A CN101866057A (en) | 2010-06-03 | 2010-06-03 | A Planar Projection Three-dimensional Display Device Based on Double Microlens Array |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010190047A CN101866057A (en) | 2010-06-03 | 2010-06-03 | A Planar Projection Three-dimensional Display Device Based on Double Microlens Array |
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| CN101866057A true CN101866057A (en) | 2010-10-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454778A (en) * | 2013-09-16 | 2013-12-18 | 曹乃元 | Naked-eye 3D projection system |
| CN103888757A (en) * | 2014-03-24 | 2014-06-25 | 中国人民解放军国防科学技术大学 | Numerous-viewpoint naked-eye three-dimensional digital stereographic projection display system |
| CN111221112A (en) * | 2018-11-27 | 2020-06-02 | 扬明光学股份有限公司 | Pattern projection device and manufacturing method thereof |
| CN113382226A (en) * | 2021-06-01 | 2021-09-10 | 浙江大学 | Multi-projection splicing three-dimensional display device |
| TWI794413B (en) * | 2018-02-22 | 2023-03-01 | 日商可樂麗股份有限公司 | Diffusion plate |
-
2010
- 2010-06-03 CN CN201010190047A patent/CN101866057A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454778A (en) * | 2013-09-16 | 2013-12-18 | 曹乃元 | Naked-eye 3D projection system |
| CN103454778B (en) * | 2013-09-16 | 2015-09-23 | 曹乃元 | Bore hole 3D optical projection system |
| CN103888757A (en) * | 2014-03-24 | 2014-06-25 | 中国人民解放军国防科学技术大学 | Numerous-viewpoint naked-eye three-dimensional digital stereographic projection display system |
| TWI794413B (en) * | 2018-02-22 | 2023-03-01 | 日商可樂麗股份有限公司 | Diffusion plate |
| CN111221112A (en) * | 2018-11-27 | 2020-06-02 | 扬明光学股份有限公司 | Pattern projection device and manufacturing method thereof |
| CN113382226A (en) * | 2021-06-01 | 2021-09-10 | 浙江大学 | Multi-projection splicing three-dimensional display device |
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Open date: 20101020 |