Method of adopting spatial light modulators to improve computational holographic reconstruction image quality

A technology of spatial light modulator and computational holography, applied in the direction of instruments, etc., can solve the problems of expensive production cost, complex optical path structure, poor applicability, etc., and achieve the effects of easy implementation, simple system, and improved quality.

Inactive Publication Date: 2018-11-09
SICHUAN UNIV
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Problems solved by technology

Traditional computational holography usually improves the image quality of computational holographic reproduction by improving the hologram algorithm or improving the optical path, but there are problems such as complex optical path structure, expensive production cost, and poor applicability.

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  • Method of adopting spatial light modulators to improve computational holographic reconstruction image quality

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Embodiment Construction

[0021] The following is a detailed description of an embodiment of a method for improving the image quality of computational holographic reconstruction proposed by the present invention by using a spatial light modulator, so as to further describe the present invention. It is necessary to point out that the following examples are only used for further description of the present invention, and cannot be interpreted as limiting the protection scope of the present invention. Those skilled in the art make some non-essential improvements and improvements to the present invention according to the above-mentioned content of the invention. Adjustment still belongs to the protection scope of the present invention.

[0022] In this embodiment, the method for improving the image quality of computational holographic reconstruction by using a spatial light modulator is attached figure 1 The system shown in the figure is realized, and the system includes a red laser, a beam expander, a filt...

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Abstract

The invention discloses a method of adopting spatial light modulators to improve the computational holographic reconstruction image quality. The method is realized by a system formed by a laser, a filter, a collimating lens, a first spatial light modulator, a second spatial light modulator, a first computer, a second computer and a receiving screen. In the method, a shaping hologram generated by the computer is loaded on the first spatial light modulator through a driving panel, a Gaussian beam with non-uniform light intensity distribution generated after a laser source passes through a filterunit becomes a round beam with uniform light intensity distribution, the round beam after shaping is used as a reconstruction light source and shines on the second spatial light modulator loaded withthe reconstruction hologram, and high-quality computational holographic reconstruction is realized.

Description

technical field [0001] The invention belongs to the field of computing holographic display, in particular, the invention relates to a method for improving the image quality of computing holographic reconstruction by using a spatial light modulator. Background technique [0002] With the rapid development of holographic technology and the improvement of people's requirements for 3D imaging, computational holographic display, as a true 3D stereoscopic display technology, has become the focus of attention for its holographic reproduction image quality. Traditional computational holography usually improves the image quality of computational holographic reproduction by improving the hologram algorithm or improving the optical path, but there are problems such as complex optical path structure, expensive production cost, and poor applicability. Since the improvement of image quality of computational holographic reconstruction is limited by many factors, people are urgently looking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/22
CPCG03H1/2205
Inventor 王琼华肖聃刘素娟
Owner SICHUAN UNIV
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