Infinity design objective optical system and the infinity optical unit

摘要

PROBLEM TO BE SOLVED: To observe living tissue such as cells, muscles or various organs such as hearts, livers of mammals including experimental small animals alive for a comparatively long period.;SOLUTION: In this infinite design objective optical system 1 to be arranged in a mirror frame 3 having a mounting screw 5 provided at a core attaching position 4 to be mounted to a microscope main body and a thin diameter tip part 6 to be arranged to the tip to be approximated or contacted to a sample A, the infinite design objective optical system 1 having a first lens group G₁ with positive refracting power including at least a parallel plate or a flat convex lens component, a second lens group G₂ with negative refracting power containing meniscus lens components whose recessed surface is turned to at least one object side and a third lens group G₃ with the positive refracting power containing at least one set of ocular lenses from the thin diameter tip part 6 to the core attaching position 4 in order is provided.;COPYRIGHT: (C)2006,JPO&NCIPI