Adjustable optical autocollimator

Abstract

The invention discloses an adjustable optical autocollimator, and belongs to the field of optical instruments. The adjustable optical autocollimator comprises a lens positioning clamping structure, aconnection cylinder structure and an imaging CCD adjusting structure. The lens positioning clamping structure comprises a left side pyramid fixing structure, an attenuation sheet fixing structure, a lower side pyramid fixing structure, a prism positioning clamping structure and a cemented doublet lens fixing structure, the prism positioning clamping structure comprises a lens cone, the imaging CCDadjusting structure can adjust the position of imaging CCD through a fine tuning mode so that the photosensitive face of CCD can be located at the focal length position of the cemented doublet lens,and the lower side pyramid fixing structure can be flexibly dismounted according to demands. The optical lens of the adjustable optical autocollimator can locate precisely, and are easy to install andconvenient to adjust. The imaging position of CCD is adjustable. The whole device can be rapidly dismounted or assembled, the structure is simple, and the requirement for processing precision of parts is low. The whole device is low in weight and small in size, and can greatly reduce the material cost in batch production.

Description

technical field [0001] The invention relates to the field of optical instruments, in particular to an adjustable optical autocollimator. Background technique [0002] Autocollimator, also known as "autocollimation light pipe" and "optical flatness tester", is a measuring instrument that uses the principle of self-collimation of light to convert angle measurement into linear measurement. It is widely used in small angle measurement, flatness measurement of flat plate, straightness and parallelism measurement of guide rail, etc. It mainly includes optical autocollimator, photoelectric autocollimator, laser collimator and so on. [0003] In existing optical products, especially optical collimator products, various optical lenses including prisms need to be used, and the positions and angles of the prisms or other lenses used generally have very strict requirements. In actual application, most products improve the positioning accuracy by improving the machining accuracy and as...

AI Technical Summary

Problems solved by technology

This will result in a large number of components, and there are manufacturing tolerances between the assembled parts. The cumulative tolerance accumulated after the assembly of multiple parts is relatively large, which is not conducive to the precise positioning of the lens. Multiple adjustments are required, and the installation and adjustment process needs to be divided into two parts. Partially completed, low installation or commissioning efficiency

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