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Manufacturing method of color composite rainbow hologram manufactured by computer

A rainbow hologram, computer-made technology, applied in the direction of instruments, etc.

Active Publication Date: 2013-07-24
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

and other computer-based holographic Figure 1 As such, speed is one of the main problems restricting its popularization and application. At present, there is a lack of a high-quality, fast true-color computer-made synthetic hologram production method.

Method used

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  • Manufacturing method of color composite rainbow hologram manufactured by computer
  • Manufacturing method of color composite rainbow hologram manufactured by computer
  • Manufacturing method of color composite rainbow hologram manufactured by computer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] First, a three-dimensional modeling object is designed by using 3D-MAX, and the sequence view of the model object is obtained, and the calculation is performed to synthesize the color rainbow holographic calculation.

[0129] The relevant parameters are: the included angle of material parameters is 14.5°, the calculated wavelengths are 632um, 547um and 464um, the number of views is 47, z e =400mm, the slit length is 141mm, the slit width is 3mm, the object size is 20mm×20mm, and the number of pixels on the holographic surface is 35080×35080. It is implemented by MATLAB programming, and it takes 419.76 seconds to calculate using a personal notebook (acer-v3-571G, i5-2450M processor). The holographic stripe output system developed by the laboratory is used to output the calculated synthetic color rainbow hologram on the Tianjin Type III dry plate, and then develop, fix and bleach to obtain a synthetic rainbow hologram that can be actually optically reproduced. Figure 8 ...

Embodiment 2

[0131] We use a small rotating platform and camera to shoot according to a certain rotation angle to obtain the view sequence of the actual object, and use this method to make a true-color rainbow hologram. The number of views is 41, the slit length is 123mm, the object size is 20mm×24mm, and the pixel point is 35080×42120. The calculation time is 474.9 seconds. Other parameters are the same as above.

[0132] Figure 9 (a)-(c) show three views of the actual object, (d) is a partially enlarged screenshot of the hologram, and (e)-(g) are the optical reconstruction results.

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Abstract

The invention relates to a manufacturing method of a color composite rainbow hologram manufactured by a computer. The manufacturing method of the color composite rainbow hologram manufactured by the computer comprises a first step of collecting sequential views of a three-dimensional object, a second step of setting parameters, a third step of combining a three-primary-color frequency band, and a fourth step of calculating holographic patterns. The manufacturing method of the color composite rainbow hologram manufactured by the computer is capable of rapidly manufacturing the color composite rainbow hologram with high quality, and capable of manufacturing the real color composite rainbow hologram in an ordinary personal computer.

Description

technical field [0001] The invention relates to a computer-made synthetic color rainbow hologram production method. Background technique [0002] Synthetic holography is a technology that obtains a sequence view of a three-dimensional object, records it using a holographic method, and realizes a quasi-three-dimensional display of the original object when it is reproduced. Synthetic holography can be divided into two categories: optical synthetic holography and computational synthetic holography. In 1970, M.C.King et al. made a synthetic hologram by optical interference method. Computational synthetic holography was proposed by Japanese scholar Yatagai in 1976. The Fourier transform hologram of each view is generated by computer, and the elementary holograms are arranged according to the order of observation, and finally a synthetic hologram is obtained. The reproduction of the hologram requires a single Color laser illumination is transformed by a Fourier transform lens an...

Claims

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Application Information

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IPC IPC(8): G03H1/26
Inventor 李勇杨鑫王辉
Owner ZHEJIANG NORMAL UNIVERSITY
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