LASER SCANNING OBSERVATION DEVICE AND LASER SCANNING METHOD

WIPO Patent Application WO/2014/157645

A1

Provided is a laser scanning observation device which comprises: a window portion which is provided in one area of a housing and comes into contact with or close to an object to be observed; an objective lens that converges laser light to the object to be observed through the window portion; a light path changing element which changes the direction of travel of the laser light that has been guided inside the housing toward the window portion; an astigmatism correction element which is provided at a front stage of the window portion and corrects astigmatism that occurs when the laser light is converged to the object to be observed, and a rotation mechanism which rotates at least the light path changing element in a vertical rotation axis with respect to an incidence direction of the laser light into the window portion such that the laser light scans the object to be observed. The astigmatism correction element corrects the astigmatism in a correction amount that corresponds to change in the astigmatism that occurs along with the change in the observation depth which is the depth of a converging position of the laser light in the object to be observed.

ITO TERUMASA (JP)
FUKUMOTO ATSUSHI (JP)
MAEDA FUMISADA (JP)
CHUBACHI HIDEYA (JP)
HIRONO YU (JP)

PCT/JP2014/059220

October 02, 2014

March 28, 2014

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SONY CORP (JP)

A61B1/06; A61B1/00; G02B23/26; G02B26/08; G02B26/10

WO2009137704A1

2009-11-12

JP2009523581A	2009-06-25
JP2013507189A	2013-03-04
JP2009186596A	2009-08-20
JPH0933817A	1997-02-07
JP2009510451A	2009-03-12
JP2010530768A	2010-09-16
JPH1156751A	1999-03-02

KAMEYA, Yoshiaki et al. (JP)
Yoshiaki Kameya (JP)

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