Unlock instant, AI-driven research and patent intelligence for your innovation.

A color computational holographic stray light elimination system and method based on a digital lens

A digital lens and computational holographic technology, applied in the field of computational holographic display, can solve the problems of lack of real-time controllability, complex system, and many devices

Active Publication Date: 2019-06-28
SICHUAN UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these technologies can achieve the elimination of zero-order stray light, the system is more complicated, more devices are used, and the effect of real-time controllability cannot be achieved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A color computational holographic stray light elimination system and method based on a digital lens
  • A color computational holographic stray light elimination system and method based on a digital lens
  • A color computational holographic stray light elimination system and method based on a digital lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] In the following, an embodiment of a digital lens-based color computational holographic stray light elimination system and method proposed by the present invention will be described in detail 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.

[0041] An embodiment of the present invention is, according to the appended figure 1 To build the system, the wavelengths used are 671 nm 、532 nm and 473 nm Red, green, and blue lasers are used as light sources, and reflective and pure phase SLMs are used to load holograms and digital lenses. The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention proposes a color calculation holographic stray light elimination system and method based on a digital lens. The digital lens-based color calculation holographic stray light elimination system uses digital lenses instead of Fourier lenses, and sets the focal length of digital lenses in equal proportions to control the magnification chromatic aberration and axial chromatic aberration of the red, green and blue components in color reproduction due to different wavelengths. Compensate, use the sampling area conversion performance of the digital lens, linearly change the reproduction position of the reproduced image, achieve the effect of separating the zero-order light spot and the reproduced image, and then filter through the diaphragm to realize the color chromatic aberration compensation and stray light of the color calculation holographic reproduction eliminate.

Description

technical field [0001] The invention belongs to the field of computational holographic display, in particular, the invention relates to a color computational holographic stray light elimination system and method based on a digital lens. Background technique [0002] With the improvement of computer performance and the development of optoelectronic devices, spatial light modulator (SLM), as an electronic programmable device, can realize the modulation of light wave amplitude, phase, frequency, etc., and is widely used in optical measurement, pattern recognition, Among the fringe projection, holographic and dynamic display, the advantages of SLM-based computational holographic display are becoming more and more prominent. In computational holographic display, loading digital lens on SLM not only simplifies the reproduction system, but also can control the reproduction position. This advantage is especially reflected in the color computational holographic display system. Howev...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/08
CPCG03H1/08G03H1/0808G03H2001/0825G03H2001/0816G03H2225/61G03H2222/18G03H1/2294G03H2001/2218G03H2210/20G03H2001/2207
Inventor 王琼华肖聃王迪刘素娟
Owner SICHUAN UNIV