OPTICAL-COHERENCE-TOMOGRAPHY APPARATUS AND SURFACE-EMITTING LASER

WIPO Patent Application WO/2016/002160

A1

An optical-coherence-tomography apparatus includes a light-source unit configured to emit light while changing a wavelength of the light; an optical interferometric system configured to split the light from the light-source unit into illuminating light to be applied to an object and reference light, and to generate interfering light from the illuminating light reflected by the object and the reference light; a photodetection unit configured to receive the interfering light; and an information-acquiring unit configured to acquire information on the object from the interfering light received by the photodetection unit. The light-source unit performs wavelength sweep by displacing a movable portion with an electrostatic force generated with the application of a voltage. The optical-coherence-tomography apparatus further includes a pull-in-detection unit configured to detect whether or not a pull-in effect is occurring on the movable portion of the light-source unit.

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HORI YUICHIRO (JP)

PCT/JP2015/003108

January 07, 2016

June 22, 2015

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CANON KK (JP)

G01N21/17; G01N21/01; H01S5/022; H01S5/183

WO2014018950A1	2014-01-30
WO2014023777A2	2014-02-13

JP2008046452A

2008-02-28

ABE, Takuma et al. (30-2Shimomaruko 3-chome, Ohta-k, Tokyo 01, JP)

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