Instrument characteristics:
 
1. Adopt high sensitivity laser power measuring device, relative measurement, digital display and continuous adjustable gain;
 
2. Special linear guide rail, three-dimensional or two-dimensional adjustable adjustment frame, easy disassembly and assembly, and strong hands-on practicality;
 
3. When Brewster angle is measured, it is displayed on ground glass screen, with special observation window structure, and the observation clarity is due to the white screen observation mode;
 
4. It can be observed directly with human eyes or connected with special photodetectors for quantitative measurement and analysis. 650nm laser and LED light source are used to measure Brewster angle. The difference of Brewster angle between monochromatic light and compound light source is compared, and the extinction ratio deviating from Brewster angle is quantitatively measured and analyzed respectively.