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Adaptive optical system based on micro-prism sharck Harteman wave-front sensor

A technology of adaptive optics and microprism, which is used in measurement optics, optical radiation measurement, and testing optical performance, etc., to achieve the effect of simplified installation and adjustment, easy processing technology, and easy mass production.

Inactive Publication Date: 2006-09-13
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

This method proposes a simple and stable Shaker-Hartmann wavefront sensor structure, but Wang Haiying et al. only applied this wavefront sensor to the detection of aberrations, but did not apply it to specific adaptive optical aberrations. In closed-loop correction system

Method used

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  • Adaptive optical system based on micro-prism sharck Harteman wave-front sensor
  • Adaptive optical system based on micro-prism sharck Harteman wave-front sensor
  • Adaptive optical system based on micro-prism sharck Harteman wave-front sensor

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Embodiment Construction

[0029] Such as figure 2As shown, the present invention includes mirrors 2, 3, 11, 12, 18, collimator lens 4, beacon light source 5, lenses 6 and 7 form a beam expander system, wavefront corrector 8, and lenses 9 and 10 form a beam shrinker System, a microprism array 13, a Fourier lens 14 close to it, and a photodetector 15 located on the focal plane of the Fourier lens form a microprism Shack-Hartmann wavefront sensor, a wavefront processor 16, a high-voltage amplifier 17, and a focusing lens 19, photodetector 20, the light emitted by the beacon light source 5 is collimated by the lens 4, and then irradiates the target object 1 after being reflected by the mirrors 2 and 3, and the beacon light 5 reflected by the target object 1 passes through the lenses 6 and 7 The formed beam expander system is reflected by the wavefront corrector 8, then passes through the beam shrinker system composed of lenses 9 and 10, and is reflected by the mirror 12 into the microprism Shack-Hartmann ...

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Abstract

An adaptive optical system based on X-H wave front transducer of micro prism comprises X - H wave front transducer of micro prism, wave front processor and wave front calibrator. It is featured as forming said transducer by micro prism array in two - dimensional saw tooth phase grating structure and Fourier lens as well as photoelectric detector, using two structures of ring structure with single surface photo etching center symmetry or double surface grating structure with double surface photo etching as said micro prism array structure, applying micro optical technique or two - element optical technique to prepare two said structure.

Description

technical field [0001] The invention relates to an adaptive optics system based on a microprism Shack-Hartmann wavefront sensor. Background technique [0002] Adaptive optics is a new, comprehensive (integration of light, mechanics, electricity, and automatic control) high-tech discipline developed in the 1970s. It can dynamically overcome the influence of various aberrations on the optical system, so that a variety of optical equipment has the ability to automatically adapt to changes in the acting object, transmission channel and working environment, and is always in the optimal working state. Therefore, in space observation, It has a wide range of applications in many fields such as space communication and precision tracking. In addition, its basic technology can also be used in weak signal detection, sensing, monitoring, image processing and photoelectric information processing; with the improvement of components and the reduction of costs, adaptive optics will also be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J9/00G01D5/26G01M11/02
Inventor 史国华王海英张雨东戴云
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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