Color computational holography aberration compensation system and method based on varifocus lens

A technology of computing holography and compensation system, applied in the field of holographic display, can solve the problems of difficult operation, complicated coding, complicated system, etc., and achieve the effect of low cost, simple system, and avoiding complicated operation.

Active Publication Date: 2015-01-21
SICHUAN UNIV
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Problems solved by technology

Although the existing technology can obtain color reproduction effect, the system is more co

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  • Color computational holography aberration compensation system and method based on varifocus lens
  • Color computational holography aberration compensation system and method based on varifocus lens

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Embodiment Construction

[0030] A typical embodiment of using a liquid crystal lens as the variable focus lens in the color calculation holographic aberration compensation system and method based on the variable focus lens of the present invention will be described in detail below to further describe the present invention in detail. It is necessary to point out that the following examples are only used to further illustrate the present invention, and cannot be interpreted as limiting the protection scope of the present invention, and those skilled in the art make some non-essential improvements to the present invention according to the above-mentioned content of the present invention And adjustments still belong to the protection scope of the present invention.

[0031] The liquid crystal lens-based color calculation holographic color aberration compensation system of this embodiment is shown in the attached figure 2 As shown, including red laser, green laser, blue laser, shutter Ⅰ, shutter Ⅱ, shut...

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Abstract

The invention provides a color computational holography aberration compensation system and method based on a varifocus lens. The system comprises a red laser device, a green laser device, a blue laser device, a shutter I, a shutter II, a shutter III, a filter I, a filter II, a filter III, a collimating lens I, a collimating lens II, a collimating lens III, a reflecting lens, a semi-transmission semi-reflecting lens I, a semi-transmission semi-reflecting lens II, a space light modulator, a computer, a driving panel, the varifocus lens, a receiving panel and a synchronous control circuit. The varifocus lens is used for replacing a solid lens commonly used in a color computational holography optics reappearing process, the varifocus performance of the varifocus lens is used, the focal lengths of the varifocus lens during reappearing of light with different colors are changed, so that R, G and B three-color reappearing image axial coinciding is achieved, accordingly, aberration compensation is achieved, the system can be effectively simplified, cost is lowered, and reappearing image quality is improved.

Description

technical field [0001] The invention belongs to the technical field of holographic display, in particular, the invention relates to a color calculation holographic color aberration compensation system and method based on a variable focus lens. Background technique [0002] Color computational holographic display is generally realized by time-division method and space-division method. Time-division method is widely used because of its low system complexity. Use red (R), green (G) and blue (B) three-color reproduced light to irradiate the spatial light modulator (SLM) sequentially in sequence, and the reproduced light is focused by a solid lens after exiting the SLM, and forms an image at its focal plane. The color information of the scene can be viewed by utilizing the persistence of vision effect of the human eye. However, the focal length of the same solid lens for different wavelengths of light can be expressed as: ,in f λ is the focal length, r is the lens curvature...

Claims

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Application Information

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IPC IPC(8): G03H1/22
Inventor 王琼华王德宏王迪
Owner SICHUAN UNIV
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