Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate
2007-03-21
2009-06-23
Sugarman, Scott J (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
C351S210000
Reexamination Certificate
active
07549746
ABSTRACT:
A fundus observation device is provided capable of capturing both images of the surface of the fundus oculi and tomographic images of the fundus oculi, and capable of preventing alignment indicators from being reflected in the image of the fundus oculi. Image forming part220operates to form surface images based on results of detecting the reflection light by the fundus oculi Ef of the illumination light obtained from a fundus camera unit1A, and operates to form tomographic images based on results of detecting interference light LC by the OCT unit150. The fundus camera unit comprises alignment optical systems110A and190A, which project an alignment indicator. Detection timing controlling part210B controls a fundus camera unit 1A and makes it detect the illumination light substantially simultaneously with detection of the interference light. Before the interference light LC and illumination light are substantially simultaneously detected, the alignment controlling part210controls the alignment optical system110A and190A and terminates the projection of the alignment light indicator. Correction processing part225corrects the image position of tomographic images using the surface images obtained substantially simultaneously.
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Extended European Search Report.
Fukuma Yasufumi
Nishio Yutaka
Okada Hiroaki
Tsukada Hisashi
Edwards Angell Palmer & & Dodge LLP
Kabushiki Kaisha Topcon
Pinkney Dawayne A
Sugarman Scott J
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