US 12,265,210 B2
Operating microscope having an illumination device
Daniel Kolster, Oberkochen (DE); Manuel Steidle, Aalen (DE); Peter Reimer, Ellwangen (DE); André Mueller, Koenigsbronn-Zang (DE); and Franz Merz, Aalen (DE)
Assigned to Carl Zeiss Meditec AG, Jena (DE)
Filed by Carl Zeiss Meditec AG, Jena (DE)
Filed on Sep. 9, 2023, as Appl. No. 18/244,249.
Application 18/244,249 is a continuation of application No. PCT/EP2022/055773, filed on Mar. 7, 2022.
Claims priority of application No. 10 2021 106 064.8 (DE), filed on Mar. 12, 2021.
Prior Publication US 2023/0418036 A1, Dec. 28, 2023
Int. Cl. G02B 21/06 (2006.01); G02B 21/00 (2006.01); G02B 21/08 (2006.01); G02B 21/36 (2006.01)
CPC G02B 21/0012 (2013.01) [G02B 21/06 (2013.01); G02B 21/086 (2013.01); G02B 21/361 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A surgical microscope, comprising:
an optical assembly configured to image an object plane into an image plane, the object plane being arranged in an object region, the optical assembly including a microscope main objective system, through which a first stereoscopic partial beam path with a first optical axis and a second stereoscopic partial beam path with a second optical axis pass; and
an illumination device configured to illuminate the object region with an illumination beam path, the illumination device including a light source assembly configured to provide illumination light into a luminous plane which generates an extensive luminous pattern in the luminous plane, the extensive luminous pattern including a first luminous area and a second luminous area arranged at a distance from the first luminous area, the first luminous area and the second luminous area being mirror-symmetrical in relation to an optical axis of the illumination optical unit, a radiant field stop arranged at a distance from the luminous plane, and an illumination optical unit configured to image the radiant field stop into a radiant field stop plane on a first side of the microscope main objective system facing the object region with a beam path passing through the microscope main objective system,
wherein the illumination optical unit at least partially images a luminous object arranged in the luminous plane in the illumination beam path into at least one luminous image plane, wherein the at least one luminous image plane is located (a) in the microscope main objective system, or (b) at a vertical distance z from the microscope main objective system on the first side of the microscope main objective system facing the object region or on a second side of the microscope main objective system facing away from the object region,
wherein f defines a focal length of the microscope main objective system,
wherein the following applies: z/f≤10%, and
wherein the illumination optical unit images the luminous pattern as an extensive luminous pattern image into the at least one luminous image plane optically conjugate to the luminous plane.