Correspondence relation specifying method for adaptive optics system, adaptive optics system, and storage medium storing program for adaptive optics system

• Main Authors: INOUE TAKU, KO KOKIN
• Format: Patent
• Language: English
• Published: 20.01.2016
• Subjects: COLORIMETRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DIAGNOSIS; FREQUENCY-CHANGING; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; MEDICAL OR VETERINARY SCIENCE; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; RADIATION PYROMETRY; SURGERY; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

This adaptive optics system is provided with a spatial light modulator which spatially modulates the phase of an optical image incident on a modulation surface that includes N regions arranged in two dimensions, and with a wavefront sensor which receives the optical image from the spatial light modulator after modulation and which comprises a lenslet array of N lenslets arranged two-dimensionally and corresponding to the N regions, and an optical detection element that detects the light intensity distribution including M spots formed by the lenslet array. On the basis of the wavefront shape of the optical image obtained from the light intensity distribution, this adaptive optics system compensates for wavefront distortion by controlling the phase pattern displayed by the spatial light modulator, and, during compensation of the wavefront distortion, specifies the correspondence relation between the regions of the spatial light modulator and the spots formed on the wavefront sensor.