Operating microscope

Abstract

The invention relates to an operating microscope. The operating microscope comprises a main microscope body and a binocular lens barrier seat, wherein the main microscope body can swing towards two sides in a plane perpendicular to a binocular visual axis of the binocular lens barrier seat with respect to the binocular visual axis, the main microscope body is internally provided with a large objective lens group and a zoom group; and the binocular lens barrier seat is internally provided with a small objective lens group and an eyepiece group. The operating microscope further comprises an image deflecting and inverting system, wherein the image deflecting and inverting system comprises a first imaging lens group, a steering prism and a second imaging lens group, the first imaging lens group and the second imaging lens group are arranged in a relatively fixed manner, the steering lens group only performs primary steering on middle imaging of the first imaging lens group, and the imaginglight passes the large objective lens group, the zoom group, the first imaging lens group, the steering prism, the second imaging lens group, the small objective lens group and the eyepiece group andis then observed. The operating microscope performs primary middle imaging in the image deflecting and inverting system so as to reduce the divergence of the light; and the lens groups at the two sides do not need relative movement, the beam divergence is enabled to be reduced, and an advantage of being shielding-free in field of view is reserved at the same time.

Description

technical field [0001] The invention relates to the field of medical optical instruments, in particular to an operating microscope. Background technique [0002] In recent years, a kind of operating microscope with yaw observation function has appeared, referring to the U.S. patent whose publication number is US6982827, which discloses a kind of operating microscope with yaw device, and this yaw device can make the doctor keep his head while observing. When the central position is not fixed, the main mirror body swings in a plane perpendicular to the binocular visual axis to change the observation direction. However, the operating microscope has no lens group, the imaging beam diverges greatly, and the field of view is blocked. [0003] See the Chinese patent with the publication number CN104730698A, which discloses a surgical microscope, which adopts: a first relay lens group for expanding the beam of imaging light, a relay prism for converting the angle of imaging light a...

AI Technical Summary

Problems solved by technology

However, this surgical microscope has no lens group, the imaging beam diverges greatly, and the field of view is blocked

[0003] See the Chinese patent with the publication number CN104730698A, which discloses a surgical microscope, which adopts: a first relay lens group for expanding the beam of imaging light, a relay prism for converting the angle of imaging light and a lens for converging the imaging light The yaw image conversion system composed of the second image conversion lens group, wherein: the first image conversion lens group and the steering prism are fixed in the main mirror body, the second image conversion lens group is fixed in the binocular tube, and the first rotation The image lens group and the second image conversion lens are respectively arranged in the main mirror body and the binocular lens tube. When in use, the two lens groups need to rotate relative to each other, which requires high precision parts and complicated installation and calibration.

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