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

Spatial filter light path alignment adjusting apparatus and regulation method

A spatial filter and optical path collimation technology, which is applied in the direction of instruments, installation, optics, etc., can solve the problems of increasing the length of the main optical path and inconvenient arrangement of spatial filters

Inactive Publication Date: 2008-07-09
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The imaging lens 6 and the far-field detector 7 must be coaxial with the main optical path, and the detection system needs to be placed behind the mirror of the main optical path for sampling, which greatly increases the length of the main optical path, which is not convenient for the spatial filter with a narrow space. arrangement

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
  • Spatial filter light path alignment adjusting apparatus and regulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0021] Please refer to FIG. 2 first. FIG. 2 is a schematic diagram of the optical path of the far-field detection device of the present invention. It can be seen from the figure that the far-field detection device with spatial filter optical path alignment of the present invention includes:

[0022] A transmission grating 5 placed close to the spatial filter aperture 4;

[0023] The light emitting diode 9 and the collimating lens 8 constitute a collimated incoherent illumination source, illuminating the small hole 4 and the transmission grating 5;

[0024] A far-field imaging detector is formed by placing the imaging lens 6 and the far-field detector 7 in the direction of the diffracted beam of the transmission grating 5 , and the output of the far-field detector 7 is conne...

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 relates to an adjusting method and an adjusting device for collimating the light path of a spatial filter. The device comprises a transmission grating arranged tightly close to the pinhole of the spatial filter; a collimated incoherent illumination light source consisting of an LED and a collimating lens for irradiating the pin hole and the transmission grating; a far-field imaging detector consisting of an imaging lens and a far-field detector arranged in the direction of the diffraction beam of the transmission grating; and a computer connected with the output of the far-field detector. The invention has the advantages of simple equipment, easy adjustment and high accuracy.

Description

technical field [0001] The invention relates to a high-power laser device, in particular to an adjustment device and an adjustment method for the collimation of a spatial filter optical path in a high-power laser device. Background technique [0002] The current high-power laser devices used for inertial confinement nuclear fusion at home and abroad, such as my country's Shenguang ∏, and the NIF device in the United States, all involve the adjustment of the optical path of the spatial filter. Far-field detection devices are used to realize the optical path of the spatial filter. Adjustment, these far-field detection devices are generally coaxial with the main laser light path. In order not to affect the main light path, their positions are mostly behind the reflector 5 behind the spatial filter 3, and the light leakage of the reflector 5 is used to sample. The light path structure As shown in Figure 1. The main far-field monitoring adjustment step is to allow the small hole 4...

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 Applications(China)
IPC IPC(8): G02B27/46G02B27/30G02B7/182
Inventor 刘代中丁莉高妍琦
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI