Self-adaptive optical star target imaging system based on image clearing principle

A technology of adaptive optics and target imaging, applied in optics, optical components, gene models, etc., can solve the problems of non-isohalo error influence, difficult debugging, expensive adaptive optics system, etc., achieve high sensitivity, low cost, The effect of reducing difficulties and costs

Inactive Publication Date: 2007-11-28
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The technology of the present invention solves the problem: the existing typical astral target imaging compensation adaptive optics system is expensive, difficult to debug, seriously affected by non-isohalo errors in the background of strong atmospheric turbulence, and difficult to image under low light conditions. The disadvantages of effective detection and imaging of star targets provide an image clearing principle based on the principle of easy debugging, low cost, and effective elimination of non-uniform halo errors of beacons, and effective detection and imaging of stars under weak light conditions. Adaptive Optics Imaging System for Stellar Objects

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  • Self-adaptive optical star target imaging system based on image clearing principle
  • Self-adaptive optical star target imaging system based on image clearing principle
  • Self-adaptive optical star target imaging system based on image clearing principle

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Embodiment Construction

[0026] As shown in Figure 1, the present invention consists of receiving telescope system 13, reflective deformable mirror 4, beam splitter 5, high-speed digital processor 8, high-voltage amplifier 9, main control computer 12, avalanche secondary light pipe 7, image intensification CCD camera 11 Composition, the light from the star to be observed is received by the primary mirror 2 of the telescope system 13, and the secondary mirror 1 gathers the light in front of the focal point of the primary mirror 2 of the telescope system 13; then the light passes through a circular hole of the primary mirror 2 and focuses on After the main mirror 2, the eyepiece 3 of the reflective telescope system 13 becomes parallel or nearly parallel light again. After the light passes through the reflective deformable mirror 4, it is incident on the beam splitter 5 and is divided into two beams. One beam is focused by the lens 10 and Incident to the image enhancement CCD camera 11 placed on the focal...

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Abstract

The invention relates to an adaptive optical aster target imaging system based on image clearing principle, mainly comprising receiving telescope, spectroscope, reflection deformable mirror, high-voltage amplifier, photo detector, main control computer, control algorithm, high-speed digital processor and image-quality diagnosis system. The invention can make use aster target itself as beacon. It is not need that dear wave-front sensor is used to measure the wave-front error of beam from space target. Image clearing index, which can reflect wave-front error information, can be used to measure quality factor for system imaging ability. By controlling the reflection deformable mirror to correct the wave-front error the quality factor can achieve or approach the optimal value. The invention is provided with simple structure, easy regulation, real-time imaging, convenient control, and eliminating or decreasing bacon no-isoplanatic error. Under the condition of very strong atmospheric turbulence aster target can be imaged effectively. The cost of conventional adaptive optical system for imaging compensation of aster target can be decreased greatly.

Description

technical field [0001] The invention relates to an adaptive optics imaging system, in particular to an adaptive optics star object imaging system that does not need a wavefront phase detector, is low-cost, and is based on the principle of image clarity. Background technique [0002] The dynamic disturbance of atmospheric turbulence not only makes the star objects observed by the telescope vibrate constantly, but also constantly changes the shape of the imaging spot. Therefore, atmospheric turbulence becomes an important factor limiting the resolution ability of ground-based telescopes. Adaptive optics technology can measure and correct the optical phase wavefront disturbed by atmospheric turbulence in real time, so that the receiving optical telescope can obtain the target image close to the diffraction limit. Therefore, since the 1980s, adaptive optics technology has been used in astronomical observation, laser transmission and other fields have been widely used. A typical...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B23/00G02B26/06G06N3/12
Inventor 杨平许冰杨伟胡诗杰刘渊
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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