Reflector reflectivity curve measuring device

Abstract

The invention discloses a reflector reflectivity curve measuring device. The device comprises a beam splitter device, a first PMT detector, a second PMT detector and a rotating support. The beam splitter device divides light into two paths. One path of the light is emitted to the first PMT detector through a first emission hole; the first PMT detector is fixed relative to the first emission hole;and a standard parameter value can be conveniently obtained; the other path of the light is emitted to a to-be-measured reflector through a second emission hole, and enters second PMT detector after being reflected by the to-be-measured reflector; the second PMT detector and the to-be-measured reflector can both rotate relative to the second emission hole; the incident angle of the to-be-measuredreflector can be conveniently adjusted; the second PMT detector can be conveniently used for detecting and receiving light with an incident angle changing continuously; and a measurement parameter value can be obtained. The standard parameter value and the measurement parameter value are compared with each other. Reflectivity curves corresponding to the different incident angles of the to-be-measured reflector are accurately measured. Thus, with the reflector reflectivity curve measurement device provided by the invention adopted, the reflectivity curve of the reflector can be accurately measured.

Description

technical field [0001] The invention relates to the technical field of optical equipment, in particular to a device for measuring reflectivity curves of mirrors. Background technique [0002] With the rapid development of my country's observation field, various cameras and detectors are widely used, and mirrors are used more and more widely in their imaging systems. The reflectivity of mirrors directly affects the imaging quality of the system. For the system, it is very important to measure the reflectivity of the mirror under different imaging bands as a function of the incident angle, in order to perform specific processing on the imaging of the optical system. However, it is difficult to accurately measure the reflectance curve of the mirror with the existing mirror reflectance testing device. [0003] In view of this, it is a technical problem to be solved urgently by those skilled in the art to design a mirror reflectivity curve measuring device to eliminate the defect...

AI Technical Summary

Problems solved by technology

However, it is difficult to accurately measure the reflectance curve of the mirror with the existing mirror reflectance testing device

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