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Color measuring device and method for colored holographic picture

A technology of color measurement and hologram, which is applied in the direction of color measurement device, measurement device, optical radiation measurement, etc., can solve problems such as not seen, achieve good color rendering, accurate color detection, and improve brightness

Inactive Publication Date: 2014-04-09
SUZHOU UNIV +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Color hologram color measurement is a crucial technology on the road to commercialization of holograms, especially when high-quality color holograms are commercialized, the image quality of holograms must be evaluated objectively and quantitatively, among which color holograms The color of the image is an essential technical indicator, but so far there are no papers and patents on the color measurement technology of color holograms

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  • Color measuring device and method for colored holographic picture

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing, the present invention will be further described:

[0029] The color hologram color measurement device is composed of four parts: illumination system 3, imaging system 2, spectrum detection system 1 and main control computer 4. The main control computer 4 is connected with illumination system 3, imaging system 2 and spectrum detection system 1 respectively.

[0030] The lighting system 3 is composed of a collimator 16 and an arc-shaped guide rail 12. The white light source 14 and the achromatic collimator lens 13 are connected through a bracket 15 to form a collimator 16. Bolts 17 are arranged below the collimator 16, and the collimator 16 Link to each other with the screw hole 19 on the connecting plate 18 by bolt 17, connecting plate 18 slides around the arc guide rail by main control computer 4 control, as figure 2 shown. The focal length of the achromatic collimating lens 13 is f 1 , the distance from the white light...

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Abstract

The invention belongs to the field of evaluating quality of a colored holographic picture and particularly provides a color measuring device and method for a colored holographic picture. According to the color measuring device and method provided by the invention, a reproducing light source with an adjustable angle is used as an illumination light source of the colored holographic picture; a light spectrum of a holographic reproduced picture is filtered and imaged on a light spectrum detecting system; and light spectrum components of the colored holographic reproduced picture are obtained by the light spectrum detecting system, so as to quantitatively calculate a color quantity of the colored holographic reproduced picture. The system is provided with a camera CCD (Charge Coupled Device) forming mirror image relationship with the light spectrum detecting system, so that the imaging condition on the camera CCD shows a holographic imaging condition on the light spectrum detecting system. Therefore, the color measuring device provided by the invention has an automatic monitoring function. Furthermore, the optical fiber spectrograph is used by the system, so that the color measuring device provided by the invention has the advantages of small volume, rapidness in response, convenience for detection and the like. Meanwhile, the color analysis which is carried out on each partial area of the holographic reproduced picture can be realized by moving an optical fiber probe.

Description

technical field [0001] The invention belongs to the field of color hologram quality evaluation, in particular to a color hologram color measurement device and a measurement method. Background technique [0002] Color holography has attracted great attention from academia and industry because of its extremely on-site color reproduction capabilities. At present, color holography has been applied in many fields, such as: holographic packaging, holographic anti-counterfeiting, and three-dimensional display, etc. field. [0003] At present, there are two main technical means to realize color holographic display, namely reflection holography and rainbow holography. In 1967, Karl A. Stetson proposed reflection holography. The basic principle is to irradiate the object to be recorded with laser light. The scattered light of the object propagates to the holographic recording medium as the object light wave, and then introduces the coherent object light wave from the other side of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/46G01J3/10
Inventor 施逸乐王辉
Owner SUZHOU UNIV
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