Patent ID: 7784941
Filing Date: 2010-08-31
Classification: A61B

Abstract:
1. A fundus observation device comprising: a first image forming means having an illuminating optical system for emitting illumination light onto a fundus oculi of an eye to be examined and an imaging optical system for detecting the illumination light passing through said fundus oculi by a first detecting means, and forming a 2-dimensional image of the surface of said fundus oculi based on the detection results by said first detecting means; a second image forming means having a light source which outputs light of a wavelength which is different from said illumination light, an interference optical generating means splitting said light output from said light source into the signal light directed towards said fundus oculi and the reference light directed towards a reference object and generating interference light by overlapping the signal light passing through said fundus oculi and the reference light passing through said reference object, and a second detecting means for detecting said interference light generated, and forming tomographic images of said fundus oculi based on the detected results by said second detecting means; a common objective lens for imaging by both the first image forming means and the second image forming means to provide targeting at the same point of said fundus oculi for simultaneous imaging by said first image forming means and said second image forming means; and a separation means for separating the signal light from the first image forming means and the illumination light directed to the second image forming means, wherein said illumination optical system comprises a ring transparent plate disposed on a conjugating location with a pupil of the eye to be examined in order to illuminate the illumination light to the fundus oculi of the eye to be examined through the ring transparent plate, and said illuminating optical system and said imaging optical system comprise an aperture mirror having an aperture in a center region which guides the illumination light from the illuminating optical system to the common objective lens by reflection and which passes the illumination light from the fundus oculi through the aperture.