公开(公告)号：US20190339499A1

公开(公告)日：2019-11-07

申请号：US16511046

申请日：2019-07-15

Applicant: Bioptigen, Inc.

Inventor： Christopher Saxer ,  AI-Hafeez Z. Dhalla ,  Robert H. Hart ,  Eric L. Buckland

IPC: G02B21/00 ,  G02B27/00 ,  G02B21/08 ,  A61B3/12 ,  A61B3/10 ,  G02B7/00 ,  G02B21/22 ,  G02B5/00 ,  G02B21/06 ,  G02B21/02

Abstract: Surgical microscopes are provided including at least one ocular, an objective lens; a collimated space between the at least one ocular and the objective lens; an illumination system optically coupled into the collimated space of the surgical microscope, wherein an illumination from the illumination system is directed along a path at least partially contained within the collimated space of the surgical microscope and through the objective lens; and one of a field diaphragm and obscuration mask positioned within the illumination system, and outside of a field of view of the at least one ocular, wherein the one of the field diaphragm and the obscuration mask blocks, attenuates or diverts rays from the illumination system that reflect from a surface of the objective lens such that the reflected rays are not visible through the at least one ocular.