Optical detection device and method for left and right zoom system of operating microscope

Abstract

The invention discloses an optical detection device and method for surgical microscope left and right zoom systems, which belongs to the technical field of optical detection. The defect that left and right zoom systems of a traditional surgical microscope are separately detected is solved. The optical detection device comprises a prism component, an objective lens, an eyepiece, and a detection polarization plate. The prism component comprises a rhombic prism and a right angle prism. The rhombic prism has a first light incident surface, a first light reflecting surface, a second light reflecting surface and a light exit surface. The first light reflecting surface and the second light reflecting surface are sequentially arranged between the first light incident surface and the light exit surface to translate the light axis of a first parallel light beam transmitted from the first light incident surface by a predetermined distance. The right angle prism has a second light incident surface and a light transmissive surface. The light transmissive surface and the second light reflecting surface are glued to coincide a second parallel light beam transmitted to the rhombic prism with the first parallel light beam translated by a predetermined distance. According to the invention, left and right zoom systems can be detected together.

Description

technical field [0001] The invention belongs to the technical field of optical detection, and relates to an optical detection device for a left and right zoom system of an operating microscope, and also relates to an optical detection method for a left and right zoom system of an operating microscope. Background technique [0002] The optical system of the surgical microscope magnifies the observed lesion into the human eye or a charge coupled device (CCD for short), and its specific structure is as follows: figure 1 As shown, it includes a large objective lens 1 of an operating microscope, a Galileo zoom system 2 (zoom system for short), a relay prism system 3, and an eyepiece 4 . The light emitted by the object located on the focal plane of the object side of the operating microscope becomes parallel light through the large objective lens 1 of the operating microscope, and the parallel light enters the left and right zoom systems 2a and 2b respectively. After the parallel...

AI Technical Summary

Problems solved by technology

[0004] However, the inspection of traditional surgical microscope zoom system only focuses on the detection of magnification, and only detects a single channel, and never tests the left and right zoom systems together.

Such a detection method can only ensure that the total magnification of the surgical microscope and the magnification difference between the left and right optical systems meet the national standard requirements. When the two optical axes of the left and right zoom systems are not parallel, they can only pass the overall test of the surgical microscope. It can only be discovered when the operating microscope is disassembled and adjusted, thus greatly prolonging the production cycle of the operating microscope and requiring higher production costs

Images