CN104460014B - A kind of integration imaging 3D display device based on gradual change pinhole array - Google Patents

A kind of integration imaging 3D display device based on gradual change pinhole array Download PDF

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CN104460014B
CN104460014B CN201410776408.8A CN201410776408A CN104460014B CN 104460014 B CN104460014 B CN 104460014B CN 201410776408 A CN201410776408 A CN 201410776408A CN 104460014 B CN104460014 B CN 104460014B
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pinhole array
gradual change
pin hole
horizontal
change pinhole
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CN104460014A (en
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吴非
樊为
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Guangzhou big eye cat Medical Instrument Technology Co.,Ltd.
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Chengdu Technological University CDTU
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B30/00Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20Optical 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
    • G02B30/26Optical 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
    • G02B30/27Optical 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

Abstract

The present invention relates to imaging field, refer specifically to a kind of integration imaging 3D display device based on gradual change pinhole array.This device includes 2D display screen and gradual change pinhole array;Wherein gradual change pinhole array is placed on 2D display screen front, and the horizontal and vertical axis of gradual change pinhole array is the most corresponding with the horizontal and vertical axis of 2D display screen aligns;In gradual change pinhole array, the thickness of the pin hole of any string is identical, and the horizontal aperture of the pin hole of any string is identical, and the thickness of gradual change pinhole array and horizontal aperture are gradually increased from both sides to centre;The light that each image primitive of the present invention sends can form normal 3D rendering by the pin hole corresponding with this image primitive, the light that sends of image primitives being positioned at other row can not be by this pin hole, thus eliminate the crosstalk in horizontal direction, it is with a wide range of applications in 3D imaging field.

Description

A kind of integration imaging based on gradual change pinhole array 3D Display device
Technical field
The present invention relates to imaging field, particularly to 3D imaging field.
Background technology
Integration imaging 3D display device make use of light path principle of reversibility, by pinhole array or microlens array, the steric information of 3D scene be recorded on image recorder, generate micro-pattern matrix, then this micro-pattern matrix is shown on 2D display screen, reconstructs the stereo-picture of former 3D scene through pinhole array or microlens array.Integration imaging 3D display device based on pinhole array compares that integration imaging 3D display device based on microlens array has low cost, weight is little, thickness of detector is thin and pitch is not by advantages such as processing technology are limited.But, the optical efficiency of integration imaging 3D display device based on pinhole array is significantly less than integration imaging 3D display device based on microlens array, thus limits its actual application.
Existing integration imaging 3D display device based on gradual-change bore diameter pinhole array includes 2D display screen and gradual-change bore diameter pinhole array, in gradual-change bore diameter pinhole array, the arbitrarily horizontal aperture of the pin hole of string is identical, the arbitrarily vertical aperture width of the pin hole of a line is identical, and the aperture of gradual-change bore diameter pinhole array is gradually increased from edge to center.Integration imaging 3D display device based on gradual-change bore diameter pinhole array can increase optical efficiency on the premise of not reducing level viewing visual angle.But, the crosstalk in horizontal direction remains one of restriction integration imaging 3D wide variety of key factor of display device based on gradual-change bore diameter pinhole array.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of prior art, a kind of integration imaging 3D display device based on gradual change pinhole array is provided, effectively eliminate the crosstalk in the horizontal direction of existing integration imaging 3D display device based on gradual-change bore diameter pinhole array, improve the visual effect of 3D three-dimensional imaging, improve the performance parameter of 3D three-dimensional imaging.
In order to realize foregoing invention purpose, the invention provides techniques below scheme:
The present invention proposes a kind of integration imaging 3D display device based on gradual change pinhole array, this device includes 2D display screen and gradual change pinhole array, described gradual change pinhole array is placed on 2D display screen front, and the horizontal and vertical axis of gradual change pinhole array is the most corresponding with the horizontal and vertical axis of 2D display screen aligns;Wherein, in gradual change pinhole array, the thickness of the pin hole of any string is identical, and the horizontal aperture of the pin hole of any string is identical, and the thickness of gradual change pinhole array and horizontal aperture are gradually increased from both sides to centre;
Difference due to aperture thickness, the light that each image primitive sends can form normal 3D rendering by the pin hole corresponding with this image primitive, the light that sends of image primitives being positioned at other row then can not be by this pin hole, thus eliminate gradual change pinhole array imaging crosstalk in the horizontal direction, thus reach more preferable visual effect.
Concrete, the light that each image primitive sends can form normal 3D rendering through corresponding pin hole, it is only necessary to the light meeting each image primitive edge just can just be realized by the pin hole of described correspondence;Now, the light that neighbor map pixel or other the most farther image primitives are sent cannot be by this pin hole;The most well solve the horizontal crosstalk problem of different images unit imaging.
Further, according to above-mentioned condition, if 2D display screen is g with the spacing of gradual change pinhole array, micro-pattern matrix and gradual change pinhole array all comprise M × N number of unit, wherein, M unit in horizontal direction, N number of unit in vertical direction, in micro-pattern matrix, the pitch of single image unit is p, and in gradual change pinhole array, the pitch of single pin hole is p, and being positioned at the horizontal aperture of the i-th row pin hole on gradual change pinhole array is Hi, then the thickness T of the i-th row pin hole on gradual change pinhole arrayiIt is calculated by following formula:
Wherein i is less than or equal to the positive integer of M.
Compared with prior art, beneficial effects of the present invention:This integration imaging 3D display device based on gradual change pinhole array, the horizontal width of every string is identical, the thickness of every string is identical, and pin hole horizontal width and the thickness from the center of the integration imaging 3D display device of pinhole array to both sides is all sequentially reduced, the light that such structure makes each image primitive send can form normal 3D rendering by the pin hole corresponding with this image primitive, the light that sends of image primitives being positioned at other row then can not be by this pin hole, thus eliminate gradual change pinhole array imaging crosstalk in the horizontal direction, thus reached more preferable visual effect, the present invention has reached the effect of elimination of level crosstalk by simple structure, 3D imaging can be realized show, it is with a wide range of applications in 3D imaging field.
Accompanying drawing illustrates:
Fig. 1 is traditional integration imaging 3D display device schematic diagram based on gradual-change bore diameter pinhole array.
Fig. 2 is the structure and parameter schematic diagram of this integration imaging 3D display device based on gradual change pinhole array.
Labelling in figure:
1-2D display screen, 2-gradual-change bore diameter pinhole array, 3-beholder, 4-gradual change pinhole array.
Should be appreciated that above-mentioned accompanying drawing the most schematically, be not drawn to draw.
Detailed description of the invention
Below in conjunction with test example and detailed description of the invention, the present invention is described in further detail.But this should not being interpreted as, the scope of the above-mentioned theme of the present invention is only limitted to below example, and all technology realized based on present invention belong to the scope of the present invention.
The following detailed description of the exemplary embodiments utilizing a kind of integration imaging 3D based on gradual change pinhole array of the present invention to show, the present invention is further described specifically.Be necessary it is pointed out here that be; following example are served only for the present invention and are described further; it is not intended that limiting the scope of the invention; the present invention is made some nonessential improvement and adjustment according to the invention described above content by this art skilled person, still falls within protection scope of the present invention.
The present invention provides a kind of integration imaging 3D display device based on gradual change pinhole array, effectively eliminate the crosstalk in the horizontal direction of the integration imaging 3D display device of existing gradual-change bore diameter pinhole array, improve the visual effect of 3D three-dimensional imaging, improve the performance parameter of 3D three-dimensional imaging.
In prior art, the structure of the integration imaging 3D display device of gradual-change bore diameter pinhole array is as shown in Figure 1, including 2D display screen 1 and gradual-change bore diameter pinhole array 2, based on path reversal principal, reconstruct the stereo-picture of 3D scene through pinhole array or microlens array, the display image that the most remotely located beholder 3 sees is exactly real 3D rendering.And in prior art, in order to increase visual brightness and improve optical efficiency, in gradual-change bore diameter pinhole array 2, the horizontal aperture using the pin hole of any string is identical, the arbitrarily vertical aperture width of the pin hole of a line is identical, and the design that the aperture of gradual-change bore diameter pinhole array is gradually increased from edge to center;Optical efficiency can be increased on the premise of not reducing level viewing visual angle.But this structure, exists crosstalk between pixel imaging in the horizontal direction, the visual effect of 3D imaging can be affected, and the existence of this crosstalk is to limit the integration imaging 3D wide variety of major reason of display device based on gradual-change bore diameter pinhole array.
The present invention proposes a kind of integration imaging 3D display device based on gradual change pinhole array, as shown in Figure 2: this device includes 2D display screen and gradual change pinhole array;Gradual change pinhole array is placed on 2D display screen front, and the horizontal and vertical axis of gradual change pinhole array is the most corresponding with the horizontal and vertical axis of 2D display screen aligns;Wherein, in gradual change pinhole array, the thickness of the pin hole of any string is identical, and the horizontal aperture of the pin hole of any string is identical, and the thickness of gradual change pinhole array and horizontal aperture are gradually increased from both sides to centre.
The light that each image primitive sends can form normal 3D rendering by the pin hole corresponding with this image primitive, and the light that sends of image primitives being positioned at other row by this pin hole, thus can not eliminate the crosstalk in horizontal direction.
Concrete, the light that each image primitive sends can form normal 3D rendering through corresponding pin hole, it is only necessary to the light meeting each image primitive edge just can just be realized by the pin hole of described correspondence;Now, the light that neighbor map pixel or other the most farther image primitives are sent cannot be by this pin hole;The most well solve the horizontal crosstalk problem of different images unit imaging.
Present configuration is as shown in Figure 2,2D display screen is g with the spacing of gradual change pinhole array, micro-pattern matrix and gradual change pinhole array all comprise M × N number of unit, wherein, M unit in horizontal direction, N number of unit in vertical direction, in micro-pattern matrix, the pitch of single image unit is p, in gradual change pinhole array, the pitch of single pin hole is p, and being positioned at the horizontal aperture of the i-th row pin hole on gradual change pinhole array is Hi, then the thickness T of the i-th row pin hole on gradual change pinhole arrayiIt is calculated by following formula:
Wherein i is less than or equal to the positive integer of M.
Embodiment 1
2D display screen is g=4mm with the spacing of gradual change pinhole array, micro-pattern matrix and gradual change pinhole array all comprise 10 × 10 unit, wherein, 10 unit in horizontal direction, 10 unit in vertical direction, in micro-pattern matrix, the pitch of single image unit is p=4mm, in gradual change pinhole array, the pitch of single pin hole is p=4mm, is positioned at the horizontal aperture of the 1st ~ 10 row pin hole in gradual change pinhole array and is respectively 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.8mm, 0.7mm, 0.6mm, 0.5mm, 0.4mm.By formulaIt is calculated the thickness of the 1st ~ 10 row pin hole in gradual change pinhole array and is respectively 0.9mm, 1.1mm, 1.4mm, 1.7mm, 2mm, 2mm, 1.7mm, 1.4mm, 1.1mm, 0.9mm.
nullIn a word,This integration imaging 3D display device based on gradual change pinhole array,The horizontal width of every string is identical,The thickness of every string is identical,And pin hole horizontal width and the thickness from the center of the integration imaging 3D display device of pinhole array to both sides is all sequentially reduced,The light that such structure makes each image primitive send can form normal 3D rendering by the pin hole corresponding with this image primitive,The light that sends of image primitives being positioned at other row then can not be by this pin hole,Thus eliminate gradual change pinhole array imaging crosstalk in the horizontal direction,Thus reached more preferable visual effect,The present invention has reached the effect of the existing integration imaging 3D display device based on gradual-change bore diameter pinhole array of elimination crosstalk in the horizontal direction by simple structure,3D imaging can be realized show,It is with a wide range of applications in 3D imaging field.

Claims (2)

1. an integration imaging 3D display device based on gradual change pinhole array, including 2D display screen and gradual change pinhole array;Gradual change Pinhole array is placed on 2D display screen front, the horizontal and vertical axis of gradual change pinhole array and the level of 2D display screen and Corresponding alignment all distinguished by vertical central axis line;It is characterized in that, in gradual change pinhole array, the thickness phase of the pin hole of any string With, the horizontal aperture of the pin hole of any string is identical, and the thickness of gradual change pinhole array and horizontal aperture from both sides to Centre is gradually increased, and the light that each image primitive sends can form normal 3D by the pin hole corresponding with this image primitive schemes Picture, and the light that the image primitive being positioned at other row sends by this pin hole, thus can not eliminate the crosstalk in horizontal direction;Its In, 2D display screen is g with the spacing of gradual change pinhole array, and micro-pattern matrix and gradual change pinhole array all comprise M × N number of list Unit, wherein, M unit in horizontal direction, N number of unit in vertical direction, in micro-pattern matrix, the pitch of single image unit is P, in gradual change pinhole array, the pitch of single pin hole is p, is positioned at the horizontal aperture of the i-th row pin hole on gradual change pinhole array and is Hi, then the thickness T of the i-th row pin hole on gradual change pinhole arrayiIt is calculated by following formula:
T i = 2 gH i p - H i
Wherein i is less than or equal to the positive integer of M.
A kind of integration imaging 3D display device based on gradual change pinhole array, it is characterised in that 2D Display screen is g=4mm with the spacing of gradual change pinhole array, and micro-pattern matrix and gradual change pinhole array all comprise 10 × 10 lists Unit, wherein, 10 unit in horizontal direction, 10 unit in vertical direction, in micro-pattern matrix, the pitch of single image unit is P=4mm, in gradual change pinhole array, the pitch of single pin hole is p=4mm, is positioned at the 1st~10 row pin holes in gradual change pinhole array Horizontal aperture be respectively 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.8mm, 0.7mm, 0.6mm, 0.5mm、0.4mm;Then in gradual change pinhole array the thickness of the 1st~10 row pin holes be respectively 0.9mm, 1.1mm, 1.4mm, 1.7mm、2mm、2mm、1.7mm、1.4mm、1.1mm、0.9mm。
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CN105204174B (en) * 2015-10-30 2017-05-31 成都工业学院 A kind of integration imaging 3D display devices and method based on double-display screen
CN105892082B (en) * 2016-06-30 2018-04-03 上海济丽信息技术有限公司 A kind of integration imaging 3D display device based on gradual change pitch pinhole array
CN107870382B (en) 2016-09-26 2019-11-05 京东方科技集团股份有限公司 A kind of slit grating and three-dimensional display apparatus
CN107102445A (en) * 2017-04-25 2017-08-29 甘果 One kind strategy and system of bore hole 3D video reproductions and shooting are realized
CN109946844B (en) * 2019-05-21 2019-08-27 上海麦界信息技术有限公司 Cubic light field display device

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Inventor after: Ye Zezhou

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