Interference Bandpass Filter Overview: Interference Bandpass Filters provide one of the simplest ways to transmit a well-defined wavelength band of .....
Absorptive Neutral Density (ND) Filter Overview: Absorptive Neutral Density (ND) filters is a type of dark filters that easily attaches to the front ....
Lyot Filter, Birefringent Filter, Birefringent Tuners Overview: A Lyot Filter (Birefringent Filter), named for its inventor Bernard Lyot, is a type of ...