Surgical microscope including a first image and a changing proje

Details Surgical microscope including a first image and a changing proje Surgical microscope including a first image and a changing proje

1998-12-01

2000-06-27

Henry, Jon

Optical: systems and elements

Compound lens system

Microscope

359369, 359630, G02B 2118, G02B 2136, G02B 2710

Patent

active

060813717

ABSTRACT:
A surgical microscope includes an illumination optical system for illuminating a microscope visual field, an observation optical system which has an eyepiece lens and an imaging lens and allows observation of a first image of an observation target by guiding reflected light from the observation target irradiated with illumination light to the eyepiece lens from the illumination optical system, an image projection optical system for projecting a second image as image information within a portion of the microscope visual field, and visual field adjusting mechanism which has a field stop placed at an imaging position of the imaging lens and having a changeable stop shape and adjusts an area of the microscope visual field by changing the stop shape of the field stop in accordance with a projection state of the second image with respect to the microscope visual field.

REFERENCES:
patent: 5095887 (1992-03-01), Leon et al.
patent: 5453829 (1995-09-01), Remer et al.

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