发明授权
- 专利标题: Retinal camera
- 专利标题(中): 视网膜相机
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申请号: US606001申请日: 1984-05-03
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公开(公告)号: US4564273A公开(公告)日: 1986-01-14
- 发明人: Youich Iba , Kouji Inaba
- 申请人: Youich Iba , Kouji Inaba
- 申请人地址: JPX Tokyo
- 专利权人: Olympus Optical Co., Ltd.
- 当前专利权人: Olympus Optical Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX55-165394 19801126
- 主分类号: A61B3/14
- IPC分类号: A61B3/14
摘要:
A retinal camera wherein an auxiliary lens is provided so as to be free to be let into and out of a light path between the position of an image of a retina formed by an objective and a relay lens so that the front eye part of an eye to be examined can be illuminated brightly and uniformly and an image of the front eye part of a high resolution can be obtained at a high magnification. The auxiliary lens has a negative or positive refracting power. The auxiliary lens having a negative refracting power is let into and out of the light path together with an image rotator so that the image of the front eye part can be observed as an erected image.