Patent ID: 8964285
Filing Date: 2015-02-24
Classification: G02B

Abstract:
1. A microscope optical system comprising: an objective optical system configured to collect light from a specimen; an imaging optical system configured to image the light coming from the specimen and collected by the objective optical system; and an eyepiece optical system configured to magnify the image of the specimen formed by the imaging optical system and form a virtual image in an eye of an observer, wherein the following conditional expressions are satisfied, where M is the total magnification, Fntl is the focal length of the imaging optical system, Fob is the focal length of the objective optical system, Fne is the focal length of the eyepiece optical system, Ftl is the focal length of the reference imaging optical system with no magnification, Fe is the focal length of the eyepiece optical system in the microscope optical system including the reference imaging optical system and the objective optical system, and Kt is a coefficient.