An assistant mirror optical system for operating microscope

Abstract

The invention discloses an assistant lens optical system for an operation microscope. The system comprises an assistant lens minor objective lens device and an assistant lens optical transfer device which is connected with a light splitting prism system and the assistant lens minor objective lens device, wherein the assistant lens optical transfer device comprises a first reflector and a second reflector, the first reflector is used for transferring an outgoing light beam of the light splitting prism system, the second reflector is used for transferring an outgoing light beam of the first reflector to the assistant lens minor objective lens device, an outgoing light beam of the second reflector has the outgoing light axis, two rhombic prisms symmetrically arranged relative to the outgoinglight axis are further comprised and respectively have an incident surface and an outgoing surface which are perpendicular to the outgoing light axis, the outgoing surface relative to the incident surface is far away from the outgoing surface, and the outgoing light of the second reflector is incident on the incident surfaces of the two rhombic prisms, and is respectively offset by a distance fromthe outgoing optical axis after being emitted through the outgoing surfaces of the two rhombic prisms.

Description

technical field [0001] The invention belongs to an optical system of an operating microscope, in particular to an optical system of an assistant mirror for an operating microscope. Background technique [0002] The operating microscope is used in complex microsurgery and is the key equipment for the successful operation of the auxiliary operation. The use of the operating microscope greatly improves the accuracy and safety of the operation. [0003] The main optical path of the lens of the surgical microscope is mainly composed of a large objective lens, a zoom system, a small objective lens transfer system and an eyepiece system; the large objective lens can be divided into a fixed-focus large objective lens and an adjustable focus large objective lens; the zoom system is divided into continuous zoom System and step-by-step zoom system; the small objective lens transfer system designs different prism structures according to different usage conditions. [0004] The assistan...

AI Technical Summary

Problems solved by technology

[0005] The Chinese Utility Model Patent No. 201420743624.8 discloses an optical system of an assistant mirror for surgical microscopes. By using a Dove prism, the compensation for the imaging rotation caused by pitch adjustment is realized. The focus is on the position of the Dove prism in the assistant mirror of the surgical microscope. set, but its undisclosed related lens structure

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