In the eye refracting power
- 专利权人:
- 发明人:
- 申请号：
- JP2008255479
- 公开号：
- JP5554485B2
- 申请日:
- 2008.09.30
- 申请国别(地区):
- JP
- 年份:
- 2014
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an eye refracting power measuring device for shortening an examination time in a subjective examination by recognizing the eyesight value of the eye of a subject, with a refracting power difference corrected therein, or the appropriate eyesight value of a target to be initially presented in the subjective examination.
SOLUTION: The eye refracting power measuring device comprises a measuring optical system provided with a projecting optical system for projecting a measurement index onto the fundus of the eye of the subject and a light receiving optical system for receiving the eye fundus reflection image reflected from the fundus of the eye by a 2D light receiving element, and in the measuring optical system, an optical element for allowing the 2D light receiving element to receive a 2D geometrical pattern image is arranged in the projecting optical system or the light receiving optical system, and the eye refracting power measuring device obtains the refracting power difference of the eye of the subject, based on the measuring optical system and the geometrical pattern images received by the 2D light receiving element. The device includes an eyesight value estimating/determining means for estimating the eyesight value of the eye of the subject with the refracting power difference corrected therein, based on the image analysis of the geometrical pattern image received by the 2D light receiving element or determining the eyesight value of the target of the eyesight examination to be initially presented in the subjective examination.
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- 来源网站：
- 中国工程科技知识中心
