眼科撮影装置

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专利权人:

株式会社ニデック

发明人:

水野 勝保,近藤 直幸,中屋敷 勇介

申请号：

JP2009048242

公开号：

JP5242454B2

申请日:

2009.03.02

申请国别(地区):

JP

年份:

2013

代理人:

摘要：

PROBLEM TO BE SOLVED: To provide an ophthalmologic imaging apparatus allowing a favorable observation by reducing optical-axis deviation of a laser beam with respect to a power monitor.

SOLUTION: This ophthalmologic imaging apparatus includes: an irradiation optical system which has a light source section for emitting laser beams with different wavelengths and a scanning section for two-dimensionally scanning the laser beams and a light receiving optical system which has a light receiving element for receiving reflected lights and acquires a fundus oculi image. This ophthalmologic imaging apparatus is disposed with: a beam splitter for deflecting parts of the laser beams a plurality of dichroic mirrors which are disposed in the deflection direction and are prepared correspondingly for every wavelength of the laser beam a power monitor which receives the laser beams respectively and a lens system which has a focal distance f expressed by the following expression f&gea2(a2+r)/[2(a1+a2+r)], wherein a distance from a deflection angle generation element of the laser beam incident in the power monitor to a lens system installation position is defined as a1, a distance from the lens system installation position to the power monitor is defined as a2 and the beam radius of the laser beam is defined as r.

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来源网站：

中国工程科技知识中心

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