A Method for Optical Axis Fixing of Cylindrical Mirror

Abstract

The invention relates to a cylindrical mirror optical fixed-axis system and a cylindrical mirror optical fixed-axis method, wherein the system comprises a posture adjustment tool, a mirror frame, a first optical centrescope, a second optical centrescope, a first CCD (charge coupled device) camera, a second CCD camera, a second PC (personal computer) and a second PC, wherein the posture adjustment tool is fixed on a lathe rotating shaft; the mirror frame is fixed on the posture adjustment tool; a cylindrical mirror is fixed in the mirror frame; the first optical centrescope is positioned at one end of the lathe rotating shaft, and faces towards the plane of the cylindrical mirror; the first optical centrescope is connected with one end of the first CCD camera; and the other end of the first CCD camera is connected with the first PC. In order to solve the technical problems that a current method for determining cylindrical mirror optical axis reference is liable to cause optical element scratch, low in optical-axis reference precision and the like, the cylindrical mirror optical fixed-axis system completely adopts an optical non-contact type measuring mode, so that the coincident accuracy of the optical axis and a mechanical rotary shaft is guaranteed.

Description

technical field [0001] The invention belongs to the field of optical axis fixing, in particular to a method for determining the optical axis of a cylindrical mirror. Background technique [0002] Cylindrical lens is a special case of aspheric surface, which has special optical imaging characteristics. High-precision cylindrical mirrors and cylindrical system online focusing systems, movie camera lenses, laser printers, etc. are more and more widely used. These applications require corresponding high-precision adjustment methods to ensure the consistency of the optical axis of the optical system. [0003] Imaging characteristics of the cylindrical lens: Because the cylindrical lens is not rotationally symmetric, the cylindrical lens has no spherical center point, only the spherical center line. A plane wave passing through a cylindrical lens will not form a focal point, but will form a focal line. Theoretically, there is no so-called optical axis in cylindrical mirrors, but...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems such as the existing method of determining the optical axis reference of a cylindrical mirror that easily leads to scratches on optical elements and low accuracy of the optical axis reference, the present invention provides a method and equipment for optical axis-fixed processing of a cylindrical mirror

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