Holographic laser 3-D projector

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...

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