Holographic image forming system

Abstract

A holographic image forming system is provided. The use of an image slicing process and / or the arrangement of half-cylindrical lens in the optical path of an optical light wave and upstream of the film is effective to reduce the times of multiple exposures of the film. As a consequence, the brightness of the reconstructed image is enhanced.

Description

technical field [0001] The invention relates to a synthesis system of holograms, in particular to a synthesis system of optical holograms. Background technique [0002] The existing optical holographic film uses a coherent light to irradiate the object, and the reflected light on the object surface or the direct penetrating light, that is, the object light, will shoot to the photosensitive plate, and then use another part of the coherent light as a reference light projection On the photosensitive plate, since the object light and the reference light come from the same beam of coherent light, interference will be formed on the photosensitive plate, forming many light and dark interference fringes, and the photosensitive plate will record these images to form a picture Holographic film, in which the shape of the interference pattern represents the phase relationship between the object light and the reference light, and the contrast between light and dark reflects the intensity...

AI Technical Summary

Problems solved by technology

Since the negative film 200 is set on the focal plane of the object optical imaging system, there is a gap between the first image exposure area 2001 and the second image exposure area 2002, resulting in a barrier effect

[0005] In addition, the existing so-called imaging surface disc-type composite holography is different from the disk-type composite holography in that it uses a simple optical system, removes the cylindrical lens, and images the image of the object in a way of repeated exposure. On the surface of a holographic film, such as figure 2 As shown, the first image exposure area 2201 and the second image exposure area 2202 on the negative film 220 have a large overlapping portion 2203 on the negative film 220 for repeated exposure. Therefore, the negative film 220 is subjected to repeated exposures, which may lead to insufficient brightness of the reconstructed image, resulting in poor visibility of the holographic image, and making it impossible to produce a larger-sized reconstructed image

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