Holographic image recording and reconstructing methods

Abstract

The invention relates to a holographic image recording method which is realized by a holographic image shooting and recording device. The holographic image recording method comprises that an image acquiring device shoots a target object placed on a rotation platform which rotates at a fixed speed, and transmits a shot image to a display panel via a connecting line; a light emission unit is used to emit a homology light beam to a reflector, and the reflector reflects the homology light beam to a spectroscope; and the spectroscope separates the homology light beam, and object light and reference light are transmitted to a holographic film along first and second optical paths respectively and interfere with each other to form a holographic image. The invention also relates to a holographic image reconstruction method which is realized by a holographic image reconstruction device. Reconstruction is carried out on the holographic film to form a suspended and amplified 3D image.

Description

technical field [0001] The present invention relates to an image recording and image reconstruction method, and more particularly to a holographic image recording and holographic image reconstruction method. Background technique [0002] The basic principle of making an optical holographic film (holographic film is also translated as holographic film) is as follows: firstly, an image capturing device such as a CCD camera is used to capture an image of an object on an object platform. At the same time, a light-emitting device such as a laser is used to emit a coherent light to a beam splitting module, which divides the coherent light into object light and reference light. Wherein, the object light transmits and transmits the image captured by the image capture device to the hologram film along the object light optical path. In addition, the reference light is reflected along the optical path of the reference light and hits the hologram film. Then, the object light and the r...

AI Technical Summary

Problems solved by technology

However, regardless of cylindrical, conical, or disk-shaped, a cylindrical lens must be used, and the composite hologram produced by it is a small composite hologram in the shape of a long and narrow fan, and the reconstructed image viewed by the viewer is composed of many small composite holograms. Reconstructed by combining photos, so that there will be aberrations

In addition, the generated reconstructed image will have a series of fences overlapping it, which is the so-called "fence effect", which makes the quality of the viewed image poor

[0004] In addition, even if the disk-type compound holography is used, repeated exposures are still required during imaging, so that the reconstructed image has insufficient brightness and poor clarity, and the size of the recorded image cannot be made as small as possible (for example, for anti-counterfeiting labels). Its application is limited

Therefore, the image produced by this disc-type composite holography is still not ideal

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