Large view field off-axis three-reflector system and adjusting method

An off-axis three-mirror technology with a large field of view, which is applied to optical components, optics, instruments, etc., can solve problems such as unfavorable engineering, difficult operation of system installation and adjustment, and difficult detection of convex aspheric surface processing, so as to achieve the difficulty of installation and adjustment The effect of low, simple structure

Active Publication Date: 2016-01-13
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
View PDF5 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] All kinds of off-axis three-mirror systems currently researched are difficult to solve the contradiction between large field of view and difficulty in processing and assembly. Most of the systems are designed with high-order aspheric mirrors with large off-axis. Many unfavorable factors have been brought about by installation and adjustment, which is not convenient for the rapid prototyping of the whole system and is not conducive to the engineering of the project
[0003] In the past, the secon

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
  • Large view field off-axis three-reflector system and adjusting method
  • Large view field off-axis three-reflector system and adjusting method
  • Large view field off-axis three-reflector system and adjusting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Such as figure 1As shown, the designed large field of view off-axis three-mirror system primary mirror 1 is an off-axis hyperboloid mirror; the secondary mirror is a convex spherical mirror 2; 3 is the aperture stop of the system, which is arranged on the secondary mirror 2; The mirror is an off-axis secondary concave oblate spherical mirror 4; 5 is the focal plane of the system; 6 is the optical reference axis of the system, which is the parent axis of the main mirror 2 and the third mirror 4. The target light from infinity is reflected by the primary mirror 1 to the secondary mirror 2, and then reflected by the secondary mirror 2 into the third mirror 4, and finally the three mirrors image the light to the image surface 5. The structural form adopted by the present invention is beneficial to reduce the difficulty of system processing and assembly, especially the use of coaxial spherical mirror for the secondary mirror reduces the difficulty of later optical glass proc...

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 a large view field off-axis three-reflector system and an adjusting method. The large view field off-axis three-reflector system comprises a main mirror, a secondary mirror, an aperture diaphragm, a third mirror and a focal plane. The main mirror is an off-axis hyperboloid reflector; the secondary mirror is a protruding spherical surface reflection mirror; the third mirror is an off-axis secondary recessed flat spherical mirror; the master axes of the master mirror and the third mirror are superposed as a reference axis; the aperture diaphragm is successively arranged on the secondary mirror; the optical axis of the secondary mirror is superposed with the master axis of the third mirror; a target light ray from infinity enters the secondary mirror after reflection of the main mirror and enters the third mirror through the reflection of the secondary mirror; and then the light ray is imaged on the focal surface. The invention solves the contradiction between the large view field off-axis three-reflector system, the processing and adjusting. The large view field off-axis three-reflector system adopts a simple structure and can realize the wide width imaging, wherein the effective view field reaches 12 degree*3.5 degree.

Description

technical field [0001] The invention relates to a large field of view off-axis three-mirror optical system and an assembly method, which are mainly used in the rapid design, processing and assembly of various large-field off-axis three-mirror systems. Background technique [0002] All kinds of off-axis three-mirror systems currently researched are difficult to solve the contradiction between large field of view and difficulty in processing and assembly. Most of the systems are designed with high-order aspheric mirrors with large off-axis. Many unfavorable factors have been brought about by installation and adjustment, which is not convenient for the rapid prototyping of the whole system and is not conducive to the engineering of the project [0003] In the past, the secondary mirrors of off-axis three-mirror systems with large fields of view were designed with convex high-order aspheric surfaces. Such a design is very easy for designers, but it brings considerable challenges...

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
IPC IPC(8): G02B17/06
CPCG02B17/0605G02B17/0626
Inventor 徐亮赵建科刘峰周艳杨菲段亚轩陈永权
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap