Invention Grant
- Patent Title: Fundus photographing apparatus
- Patent Title (中): 眼底摄影设备
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Application No.: US13930748Application Date: 2013-06-28
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Publication No.: US09380939B2Publication Date: 2016-07-05
- Inventor: Cesare Tanassi , Raffaella Bisson , Mauro Campigotto , Simone Pajaro , Ettore Cerulli
- 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: JP2012-167105 20120727
- Main IPC: A61B3/00
- IPC: A61B3/00 ; A61B3/15 ; A61B3/12

Abstract:
A fundus photographing apparatus includes: a photographing unit including a fundus illumination optical system to illuminate a fundus of a patient's eye and a fundus photographing optical system having a light receiving element to obtain a fundus image of the illuminated eye; and an alignment unit to position the photographing unit with the eye based on a predetermined alignment reference position. The alignment unit includes: an extracting part to extract, by image processing, an image region formed by reflection light from a portion other than the fundus from the fundus image obtained by the fundus photographing optical system; a gravity center calculating part to determine, by arithmetic processing, a gravity center position of the extracted image region; and a control part to perform alignment control of the photographing unit with the eye based on the calculated gravity center position and the alignment reference position.
Public/Granted literature
- US20140028976A1 FUNDUS PHOTOGRAPHING APPARATUS Public/Granted day:2014-01-30
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