Patent ID: 9480399
Filing Date: 2016-11-01
CPC Classification: A61B,G02B

Claim Text:
1. An illumination device for an optical viewing apparatus, the illumination device defining an illumination beam path and comprising: an illumination light source having mutually independently controllable individual light sources arranged in a two-dimensional array in a first plane; illumination optics defining an optical axis; said illumination optics forming a second plane conjugated with respect to said first plane; a diaphragm unit arranged in said second plane; said diaphragm unit having a plurality of apertures; and, said apertures being assigned to corresponding ones of said individual light sources; said apertures have a size and shape adapted to respective images of said individual light sources in said second plane; said illumination optics define a first main plane (H) and a second main plane (H′); said first main plane (H) and said first plane define a first distance (s) therebetween; said second main plane (H′) and said second plane define a second distance (s′) therebetween; wherein the following relationship is satisfied for a magnification scale: