Invention Grant
- Patent Title: Fundus photographing apparatus
- Patent Title (中): 眼底摄影设备
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Application No.: US13921666Application Date: 2013-06-19
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Publication No.: US09254084B2Publication Date: 2016-02-09
- Inventor: Masayuki Yoshino
- Applicant: NIDEK CO., LTD.
- Applicant Address: JP Gamagori-shi
- Assignee: NIDEK CO., LTD.
- Current Assignee: NIDEK CO., LTD.
- Current Assignee Address: JP Gamagori-shi
- Agency: Oliff PLC
- Priority: JP2012-146238 20120629
- Main IPC: A61B3/14
- IPC: A61B3/14 ; A61B3/12

Abstract:
A fundus photographing apparatus includes: an illumination optical system for illuminating a fundus of a examinee's eye; and a photographing optical system for photographing the fundus illuminated by the illumination optical system. The photographing optical system includes: a first aperture diaphragm for forming an image of the aperture diaphragm in a position between a pupil and a posterior surface of a crystalline lens of the eye; and a second aperture diaphragm for forming an image of the aperture diaphragm not acting as a field diaphragm, in a position between the fundus of the eye and the image of the first aperture diaphragm.
Public/Granted literature
- US20140002795A1 FUNDUS PHOTOGRAPHING APPARATUS Public/Granted day:2014-01-02
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