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Device for recording three-dimensional digital information on holographic negative film and its recording method

A technology of information recording and three-dimensional digital, applied in the direction of digital memory information, information storage, static memory, etc., can solve the problems of expensive virtual reality system, long time to make physical model, high cost of physical model, etc., and achieve unlimited image size , simple structure and low manufacturing cost

Inactive Publication Date: 2008-01-09
HARBIN NORMAL UNIVERSITY
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Problems solved by technology

[0003] The purpose of the present invention is to solve the need to make a physical model or realize it in a virtual reality system when displaying a three-dimensional image in the prior art, but it takes a long time to make a physical model, the cost of making a physical model is high, and the virtual reality system is expensive. The problem

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  • Device for recording three-dimensional digital information on holographic negative film and its recording method

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specific Embodiment approach 1

[0012] Specific embodiment one: illustrate this embodiment in conjunction with Fig. 1, the device of this specific embodiment is by computer 1, D / A-A / D converter 2, digital microreflector 3, quarter-wave plate 4, polarization beam splitter 5. First convex lens 6, spatial filter 7, second convex lens 8, holographic film 9, two-dimensional displacement assembly 10, mirror 11, third convex lens 12, fourth convex lens 13, beam splitter 14, half A wave plate 15, an electric shutter 16, a laser 17, and a VGA splitter 18;

[0013] The holographic film 9 is arranged on the working surface of the two-dimensional displacement assembly 10, and the optical axis of the digital micromirror 3 is sequentially provided with a quarter-wave plate 4, a polarizing beam splitter 5, a first convex lens 6, a space Filter 7, second convex lens 8, holographic film 9, the optical axis centerline of digital micromirror 3 and the optical axis centerline of quarter wave plate 4, the optical axis centerline...

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Abstract

The invention relates to a device and method for recording 3D digital information on holographic negative, relating to the field of 3D image storage and 3D display technique. And its digital microreflector's optical axis is equipped in turn with 1 / 4 wave plate, polarizing beam splitter, first convex lens, spatial filter, second convex lens, and holographic negative, where a part of laser beam emitted from a laser passes through electric shutter, beam splitter, 1 / 2 wave plate, fourth convex lens and third convex lens to reach the input end of the polarizing beam splitter; the other part of laser beam passes through the beam splitter and is then reflected by reflector onto the back of the holographic negative. And its steps include: converting 3D images into 2D images of different visual angles; displaying on digital microreflector; imaging on holographic negative. And the invention records digital 3D images in computer on holographic negative to implement 3D display.

Description

technical field [0001] The invention relates to the technical field of three-dimensional image storage and three-dimensional display. Background technique [0002] With the development of information technology, computer graphics and digital image processing technology have a large number of applications in scientific research, production practice and real life, such as the design of automobile and manufacturing industry, the exhibition of engineering design, the application of military three-dimensional maps, petroleum And natural gas detection data, commercial advertisements and art exhibitions all have three-dimensional data that needs to show its three-dimensional structure. At present, the display of three-dimensional data usually needs to make a physical model, or use a variety of three-dimensional image display methods in virtual reality technology, such as helmet-mounted display, wearing polarized glasses, etc. If you want to make a physical model, the production ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/04G11C13/04
CPCG03H1/0891G03H1/0476G03H2001/048
Inventor 荣宪伟于晓燕张飙关承祥孙文军
Owner HARBIN NORMAL UNIVERSITY
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