In the field of optics, optical filters play a vital role. They can selectively transmit or block light in a specific wavelength range and are widely used in many fields such as photography, scientific research, and optical communications. In order to better understand and select…

Optical filters are sheet-like optical elements with filtering effects. They can effectively filter, split, attenuate and reflect optics. In different application fields, the purpose of filtering is not just for simple filtering. Its “filtering” function can vary according to the actual application situation. Categorical features…