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Rainbow hologram recorder

A rainbow hologram and recording device technology, applied in the direction of instruments, etc., can solve problems such as limitations

Inactive Publication Date: 2002-02-27
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, due to the need for a stable optical platform, working environment and expensive optical components for shooting, this technology is limited in practical applications
Since 1992, some people in the United States, Japan and other countries have proposed the method of realizing the holographic camera system by miniaturizing the overall optical path to achieve practical purposes, but it still cannot solve the complexity of the optical path system device and its own stability.

Method used

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Embodiment Construction

[0014] When the device is shooting, the object to be photographed is illuminated by a laser or other light source with better monochromaticity. figure 1 The entire optical path system when a laser is used as the light source is shown. The camera part includes imaging lens L, rainbow version H S , holographic record version H R , shutter button A, namely figure 1 Parts included in the dashed box. Different from the ordinary camera, the shutter B is placed at the exit of the light source laser to control the exposure time by limiting the irradiation time of the light to the object O. After the laser beam emitted from the laser S is expanded by the beam expander E, it is reflected on the object O by the mirror M. The beam must cover all parts of the object facing the imaging lens L. The center of the object, imaging lens, rainbow plate and holographic recording plate must be in a straight line, that is, they must be coaxial. Holographic Recording Version H R The glue side ...

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Abstract

The single beam rainbow hologram recording equipment contains light source, rainbow plate, imaging lens, holographic recording plate and control device, the light source can be laser or other monochromatic light source, and rainbow plate is placed in the imaging position of shot body by means of imaging lens, the film of holographic recording plate is closed to the rainbow plate, the shot body, imaging lens, rainbow plate and holographic recording plate are positioned on same optical axis. It can be used for shooting hologram, after imaged, through exposure and chemical treatment, a white light reproduced rainbow hologram can be obtained. Said equipment is compact in structure, simple and convenient in operation, and possesses extensive application in the holographic interferometric research of nondestructive test, stress and strain analysis and photoelastics.

Description

(1) Technical field [0001] The invention relates to a holographic photographing device, in particular to a single-beam rainbow holographic recording device obtained by using a laser or a light source with better monochromaticity, a rainbow plate and an imaging lens. (2) Technical background [0002] The previous rainbow hologram recording methods (including the one-step method and the two-step method) are recorded by two laser beams from the same light source passing through different paths and intersecting at a certain angle on the glue surface of the holographic recording material to form interference fringes. down. In such systems, tiny vibrations in any one optical element in the recording optical path can severely damage the interference fringes, causing the holographic recording to fail. Therefore, strict anti-vibration measures must be adopted, such as the use of anti-vibration workbenches; all optical components, holographic recording materials, recorded objects, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/04
Inventor 刘守张向苏
Owner XIAMEN UNIV
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