Holographic laser 3-D projector

A holographic laser and projector technology, applied in instruments and other directions, can solve the problem of unable to display dynamic three-dimensional color images, and achieve unique effects, strong appeal, and simple structure.

Inactive Publication Date: 2005-01-12
张斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But above-mentioned prior art, although have also solved the stereoscopic imaging problem in the air, the obvious shortcoming of its existence is to adopt traditional optical structure, can only display single static picture, can't display dynamic stereoscopic color image

Method used

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  • Holographic laser 3-D projector
  • Holographic laser 3-D projector
  • Holographic laser 3-D projector

Examples

Experimental program
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Embodiment Construction

[0027] 1. Production of holographic dry plate

[0028] That is to say, the method of shooting holograms. It depends on the type of image to be displayed. Taking the simplest holographic projector with only digital display function as an example, the method of making the holographic dry plate of this kind of holographic projector is briefly introduced.

[0029] 1. Instruments and equipment required for light source and exposure time control system.

[0030] The system includes laser tube, power supply, optical switch and exposure time timer. A good coherent light source must be used to take holograms. This system adopts helium-neon laser 11, the coherence length of the red laser emitted by this laser is longer, generally not less than 1 / 4-1 / 2 of the resonator length, so small helium-neon lasers (power 1-3MW) are commonly used to capture smaller diffuse objects and get high-quality holograms. If the power of the laser is higher, the exposure time can be shortened when shoot...

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PUM

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Abstract

The projector includes laser, beam expander, dot matrix light switch etc. Expanded laser beam irradiates dot matrix type switch layer plane addressable by light path under circuit control vertically. Holographic plate parallel to the said switch layer is negative film array, where demagnified hologram negatives of recording encoded object are arranged. The said negative film array is corresponding to the sub switch array on the dot matrix type switch layer. The imaging lens and holographic plate are parallel to each other. The invention can widely be used in exposition, advertisement, park etc.

Description

Technical field: [0001] The invention relates to a device for redisplaying a holographic image by using a laser, in particular to a device for stereoscopic projection by using a holographic laser. Background technique: [0002] Existing optical imaging devices reflect or transmit a planar image (eg projector, film projector imaging) through an optical system to form a planar image and need to display the image with a certain object such as a screen, a film, or a certain medium. But even if the original image is so-called three-dimensional, the parallax of human eyes can be used to perceive the three-dimensional image, but whether the original object image is two-dimensional or three-dimensional, the original three-dimensional image can be restored after passing through the optical system, but generally It requires a huge isolation table and needs to be observed from a suitable angle. [0003] With the rapid development of digital technology, the information and communicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H5/00
Inventor 张斌
Owner 张斌
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