Patent ID: 9250430
Filing Date: 2016-02-02
CPC Classification: G02B

Claim Text:
1. A microscope adapter unit disposed on an optical path of illumination light leading from a light source unit including a light source to a sample surface via a microscope main body, the microscope adapter unit comprising: a first lens group including at least one lens; and a second lens group including at least one lens; wherein: the first lens group converts the illumination light into roughly parallel luminous fluxes, and makes the illumination light enter the second lens group; the light source unit includes an optical system that converges or makes parallel the illumination light from the light source, and is used together with fibers disposed between the light source unit and the microscope main body; the microscope adapter unit is disposed between the fibers and the light source unit; and the microscope adapter unit comprises, in order starting from a side of the light source unit: (i) a lens that is included in the first lens group and that has a positive power, (ii) a lens that is included in the first lens group and that has a negative power, (iii) a lens that is included in the second lens group and that has a negative power, and (iv) a lens that is included in the second lens group and that has a positive power.