High-stability uniform integrating sphere brightness source system based on galvanometer

Abstract

The invention relates to a galvanometer-based high-stability uniform integrating sphere brightness source system, which comprises a laser, a diaphragm, a polarizer, a power stabilizer, a galvanometer and an integrating sphere which are sequentially arranged, and is characterized in that the galvanometer is connected with a signal generator; the laser is used for emitting laser; the diaphragm is used for adjusting the beam size; the polarizer is used for adjusting the polarization direction of the light beam, so that the polarization direction of the light beam is matched with the power stabilizer; the power stabilizer is used for stabilizing the light beam; the signal generator is used for sending a variable control signal to the galvanometer, so that the galvanometer forms a variable light field; the integrating sphere is provided with a light beam inlet and a light beam outlet, the light beam inlet and the light beam outlet are located on the same straight line, the light beam outlet of the integrating sphere is provided with a radiance meter, the radiance meter is placed on an electric translation table, the light beam outlet of the integrating sphere is provided with a monitoring detector, and the monitoring detector is connected with a voltmeter. The system is advantaged in that the galvanometer and the integrating sphere are combined, so speckles can be effectively inhibited, and stability and uniformity are good.

Description

technical field [0001] The invention relates to the technical field of integrating sphere brightness sources, in particular to a high-stability uniform integrating sphere brightness source system based on vibrating mirrors. Background technique [0002] The integrating sphere light source is widely used in the field of optical calibration because of its good uniformity, cosine characteristics and stability. With the development of related application fields, the accuracy of the calibration system using the integrating sphere as the main device is also constantly improving. However, due to the structure of the integrating sphere, there will be speckle effect in the outgoing light, which will affect the stability and uniformity of the integrating sphere. [0003] In order to solve this effect, the researchers invented devices such as using a stepper motor to control the rotation of the inner wall of the integrating sphere, and using a flexible hinge to vibrate the integrating...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a high-stability uniform integrating sphere brightness source system based on galvanometers to solve the problems mentioned in the background technology

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