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自覚式検眼装置及び自覚式検眼プログラム
专利权人:
NIDEK CO LTD
发明人:
TAKII MICHIHIRO,滝井 通浩,HANEBUCHI MASAAKI,羽根渕 昌明,OCHI HISASHI,越智 永,TACHIBANA KEN,立花 献
申请号:
JP2017069852
公开号:
JP2018171140A
申请日:
2017.03.31
申请国别(地区):
JP
年份:
2018
代理人:
摘要:
PROBLEM TO BE SOLVED: To provide a subjective optometric apparatus and a subjective optometric program that enable subjective measurement in a state closer to natural viewing to be performed.SOLUTION: A subjective optometric apparatus for subjectively measuring optical characteristics of an eye to be examined includes: a light projecting optical system 30 for projecting a target light beam to the eye to be examined and projecting a target onto the eye to be examined a correction optical system 60 arranged in an optical path of the light projecting optical system for changing optical characteristics of the target light beam and an optical member for guiding the target light beam corrected by the correction optical system to the eye to be examined. The subjective optometric apparatus includes distance changing means for optically changing a presentation distance of the target, optical path switching means for switching an optical path between a first optical path for projecting the target light beam toward the eye to be examined from a horizontal direction at the time of distant vision examination and a second optical path for projecting the target light beam toward the eye to be examined from the direction inclined downward with respect to the horizontal direction at the time of near vision examination, and convergence angle changing means for changing a convergence angle of the target light beam emitted from a right eye optical path including the right eye correction optical system and a left eye optical path including the left eye correction optical system.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】より自然視に近い状態での自覚式測定を可能とする自覚式検眼装置および自覚式検眼プログラム。【解決手段】視標光束を被検眼に向けて投光して視標を被検眼に投光する投光光学系30と、投光光学系の光路中に配置され、視標光束の光学特性を変化する矯正光学系60と、矯正光学系によって矯正された視標光束を前記被検眼に導光する光学部材と、を有し、被検眼の光学特性を自覚的に測定する自覚式検眼装置であって、視標の呈示距離を光学的に変更する距離変更手段と、遠用検査時において被検眼に向けて視標光束を水平方向から投光するための第1光路と、近用検査時において水平方向に対して下方に傾斜した方向から被検眼に向けて視標光束を投光する第2光路と、を切換える光路切換手段と、右眼用矯正光学系を含む右眼用光路及び左眼用矯正光学系を含む左眼用光路とから出射
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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