Ophthalmic photographing apparatus

US20110176111A1Active Publication Date: 2011-07-21NIDEK CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
NIDEK CO LTD
Publication Date
2011-07-21

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Abstract

An ophthalmic photographing apparatus includes: an interference optical system including a splitter that splits light, emitted from a measurement light source, into measurement light and reference light, and synthesizing the measurement light reflected on an eye with the reference light to guide the synthesized light to a detector; a driving part that moves an optical member arranged in the optical path to adjust an optical-path difference between the measurement light and the reference light; an image obtaining part that obtains a tomographic image of a fundus or an anterior segment based on a light receiving signal output from the detector; and a driving control unit that controls driving of the driving part to locate the optical member in a predetermined position corresponding to either a photographing mode for photographing the tomographic image of the fundus or a photographing mode for photographing the tomographic image of the anterior segment.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is based on Japanese Patent Applications No. 2010-011355 and No. 2010-011366 filed with the Japan Patent Office on Jan. 21, 2010, the entire content of which is hereby incorporated by reference.BACKGROUND

[0002] 1. Technical Field

[0003] An aspect of the present invention relates to an ophthalmic photographing apparatus for photographing a tomographic image of an examinee's eye.

[0004] 2. Related Art

[0005] There is known an ophthalmic photographing apparatus (Optical Coherence Tomography: OCT) which has an interference optical system and photographs a tomographic image of a fundus. The interference optical system of this apparatus splits light emitted from a light source into measurement light and reference light. This interference optical system then guides the measurement light to a predetermined region of an examinee's eye, while guiding the reference light to a reference optical system. Subsequently, the interference optical ...

Claims

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