Patent ID: 6304374
Filing Date: 2001-10-16
Classification: G02B

Abstract:
A stereomicroscope comprising:an objective lens system; anda variable magnification optical system,wherein each of said objective lens system and said variable magnification optical system has a single optical axis, and the optical axes of said objective lens system and said variable magnification optical system are coincident,wherein a plurality of reflecting members common to left and right light bundles are disposed on said single optical axis so that light bundles passing through portions apart from said single optical axis pass through left and right pupils and are incident on a pair of imaging lenses corresponding to the left and right pupils,wherein a common optical system having said coincident single optical axis and including said objective lens system and said variable magnification optical system and said plurality of reflecting members is one of an erecting optical system and not an erecting optical system, andwherein an optical system which exchanges the left and right light bundles with each other is disposed after the pair of imaging lenses when said common optical system is an erecting optical system, and wherein erecting optical systems which erect each of left and right images are disposed after the pair of imaging lenses respectively when said common optical system is not an erecting optical system.