Unblocked adaptive varifocal optical system and calibration method thereof

An optical system and zoom technology, applied in the field of zoom optical systems, can solve the problems of poor environmental adaptability, difficult installation and adjustment, and low imaging quality, and achieve the effects of simple structure, convenient installation and adjustment, and high imaging quality.

Inactive Publication Date: 2013-03-20
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF4 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low imaging quality, poor correction of aberrations of several main focal lengths, poor environmental adaptability and difficult installation and adjustment existing in the existing mechanical compensation zoom system usi

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
  • Unblocked adaptive varifocal optical system and calibration method thereof
  • Unblocked adaptive varifocal optical system and calibration method thereof
  • Unblocked adaptive varifocal optical system and calibration method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] The present invention will be further described in detail below in conjunction with the drawings.

[0042] Such as figure 1 As shown, an unobstructed adaptive zoom optical system of the present invention is mainly composed of two or more deformable mirrors, imaging optical components, field diaphragm 6, first collimating lens 7, Shack-Hartmann wave The front sensor 8 and the adaptive control system assembly 21 are composed of two or more deformable mirrors placed at the front end of the imaging optical assembly. The target light first passes through each deformed mirror in turn, and then enters the imaging optical assembly. Imaging is carried out in the imaging optical assembly. Another part of the target light enters the first collimating lens 7 through the field diaphragm 6, and the first collimating lens 7 collimates the target light into parallel light and enters the Shack-Hartmann wavefront sensor 8. , The Shack-Hartmann wavefront sensor 8 measures the image point dat...

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 discloses an unblocked adaptive varifocal optical system and a calibration method thereof. The system conducts varifocal control by deformable mirrors; a Shack-Hartmann wavefront sensor in the system is connected with an adaptive control system assembly; the adaptive control system assembly is connected with two or more deformable mirrors; target light sequentially passes through each deformable mirror to enter an imaging lens assembly; a part of converged target light enters an imaging camera through a spectroscope for imaging; another part of the converged target light is reflected by the spectroscope to enter a first collimating lens through a field stop, and collimated to parallel light to enter the Shack-Hartmann wavefront sensor; image point data is measured; and the adaptive control system assembly revolves wave aberration according to the image point data and operates a corresponding correction signal, and controls at least one deformable mirror to correct the wave aberration of the system. The system is simple in structure, convenient to adjust, and high in imaging quality.

Description

technical field [0001] The invention relates to the technical field of zoom optical systems, in particular to an unobstructed adaptive zoom optical system and a calibration method thereof. Background technique [0002] The variable focal length optical system is an optical system whose focal length can be continuously changed and the position of the image plane remains relatively stable. By moving one or more lens groups, the focal length can be continuously changed within a certain range and the position of the image plane remains unchanged. At present, the commonly used The zoom optical system is mainly a mechanical compensation zoom system, and the mechanical compensation zoom system mainly relies on the nonlinear motion of the cam to realize the continuous change of the focal length. The disadvantage of this mechanical compensation zoom system is that the machining accuracy of the cam is very large. To a certain extent, it determines the imaging quality of this zoom syst...

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): G02B26/06
Inventor 林旭东刘欣悦王建立卫沛锋王亮
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS 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