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An intensity-matched high-quality full-color holographic display system

A holographic display, full-color technology, applied in the direction of instruments, etc., can solve the problem of few solutions

Active Publication Date: 2020-04-10
BEIJING FANMI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the third problem, there are still few reports on related solutions

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  • An intensity-matched high-quality full-color holographic display system
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  • An intensity-matched high-quality full-color holographic display system

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Embodiment Construction

[0022] An embodiment of an intensity-matched high-quality full-color holographic display system proposed by the present invention will be described in detail below 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.

[0023] An embodiment of the present invention is: in the experiment, the pixel size of the SLM is 6.4 μm, and the resolution is 1920×1080. The wavelength of the three collimated beams is λ r =632nm,λ g =532nm,λ b = 471nm. The size and transmittance of the BS are 25.4 mm × 25.4 mm × 25.4 mm and >80%, respectively. The output power o...

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Abstract

The invention provides a high-quality full-color holographic display system with matched intensity. The system comprises three collimated light beams (red laser, blue laser and green laser), three beam splitter prisms (BS), three lenses, three diaphragms, three spatial light modulators (SLM), a light combining mirror and a receiving screen. The three SLMs are respectively used for loading holograms of three colors. When the corresponding BSs are irradiated by the laser of the three colors, the light is reflected to the SLMs through the BSs. The diaphragms are used for eliminating bad light ina reconstructed image and adjusting the intensity of the light. Diffracted images respectively pass through the BSs, the lenses, the diaphragms and the light combining mirror, and finally, the imagesof three colors can be overlapped on the receiving screen to form a colored holographic reproduced image. The system can achieve high-quality full-color holographic display with matched intensity.

Description

[0001] 1. Technical field [0002] The present invention relates to computational holographic display technology, and more specifically, the present invention relates to an intensity-matched high-quality full-color holographic display system. [0003] 2. Background technology [0004] With the development of optoelectronic devices and the improvement of computer performance, the holographic display technology based on spatial light modulator (SLM) has attracted more and more attention due to its flexible and easy-to-operate characteristics. Holographic display technology records the complex amplitude information of the object through laser interference, and then reconstructs the image of the object through the principle of diffraction. Therefore, in order to realize a color holographic display, it is usually necessary to reproduce the hologram using lasers of three different colors. The traditional method of color holographic display is to use one or three SLMs. For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/22G03H1/26
Inventor 王迪王琼华刘超
Owner BEIJING FANMI TECH CO LTD