System and method of adaptive optical correction based on double-deformable-mirror human eye aberration

An adaptive optics, human eye aberration technology, applied in optics, optical components, instruments, etc., can solve the problems of incomplete low-level correction, inability to correct aberration parts, etc., to reduce costs and overcome limitations Effect

Inactive Publication Date: 2013-03-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

Therefore, no matter which kind of deformable mirror is used alone, there will be problems such as incomplete low-order correction or high-order inability to correct. Although optimizing the control algorithm of the deformable mirror can maximize the correction capability of the deformable mirror, for the aberrations beyond its correction range still powerless

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  • System and method of adaptive optical correction based on double-deformable-mirror human eye aberration
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  • System and method of adaptive optical correction based on double-deformable-mirror human eye aberration

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Embodiment Construction

[0035] figure 1 As shown, the adaptive optics correction system for human eye aberration based on double deformable mirrors includes infrared laser light source 1, measured human eye 2, beam splitter 3, aperture matching system I4, aperture matching system II6, aperture matching system III8, wavefront Sensor 9, deformable mirror I5, deformable mirror II7 and control computer 10; described spectroscope, aperture matching system I, deformable mirror I, aperture matching system II, deformable mirror II, aperture matching system III are on the same optical path; contain human eye wave The beam of front aberration passes through the aperture matching system I and is reflected by the deformable mirror I, then passes through the aperture matching system II and is reflected by the deforming mirror II, and then enters the wavefront sensor after passing through the aperture matching system III, and the computer uses the distortion obtained by the wavefront sensor The wavefront informati...

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Abstract

The invention discloses a system and method of adaptive optical correction based on double-deformable-mirror human eye aberration. The method uses the characteristic that decoupled human eye aberration shows that large aberration mainly occurs at a low order, fluctuation is large, aberration of a high-order mode is small, and change is stable. Wave front correction capacity on a deformable mirror I and a deformable mirror II is combined, decoupled human eye aberration is decomposed into a low-order portion and a high-order portion, the deformable mirror I corrects the low-order portion with a simple surface shape and large value, and the deformable mirror II corrects the high-order portion with a complex surface shape and small value. Correction results of the two portions are stacked to achieve combined correction on the whole human eye aberration. The system and method effectively overcomes the limitation of the existing adaptive optical human eye aberration correction system adopting a single deformable mirror.

Description

technical field [0001] The invention belongs to the field of adaptive optics correction, and more specifically relates to an adaptive optics correction system and method based on double deformable mirror human eye aberration Background technique [0002] Adaptive optics systems are widely used in astronomical observations, aberration correction of laser nuclear fusion devices, and human eye aberration correction imaging. In different application fields, adaptive optics technology is used to measure and correct various aberrations such as atmospheric disturbances, optical components or biological tissues themselves, so as to eliminate or reduce the impact of aberrations on imaging or beam quality. influences. [0003] Common aberration correction systems usually include a wavefront sensor and a deformable mirror. The wavefront sensor is responsible for aberration measurement, and the deformable mirror realizes aberration correction according to the measurement results. For ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/06
Inventor 梁春沈建新钮赛赛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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