|
A polarizer is an optical thin film that selectively filters or separates light based on its polarization direction. It is commonly used to eliminate glare, enhance image contrast, and improve the precision of optical control. According to the manufacturing method, polarizers can be classified into two main types: absorptive polarizing films and multilayer interference polarizing films.
Absorptive polarizing films are typically made from specially stretched and dyed polymer films that selectively absorb certain polarized light. Multilayer interference polarizing films are formed by stacking high and low refractive index materials through evaporation or sputtering processes, enabling precise polarization control, and are suitable for high-end optical devices.
|
