Industry News
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What are interference filters?
1. What is filter? Optical filters, as the name suggests, are lenses that filter light. Also known as “polarizer”, it is a commonly used accessory in photography. It consists of two pieces of glass, with a layer of felt or similar material sandwiched between them, and through the tran...Read more -
What are the categories of filters?
Optical filters are commonly used optical filters, which are devices that selectively transmit light of different wavelengths, usually flat glass or plastic devices in the optical path, which are dyed or have interference coatings. According to spectral characteristics, it is divided into pass-ba...Read more