- Band Pass Filter
- 2016-10-28 22:45
- Infrared (IR filters) band-pass or narrow bandpass (NBP filters)Center wavelength: 850 or 940nm It has been used for nea
- Crystal Filter (BDL-650)
- 2016-10-27 14:40
- Optic speciality: Type of BDL-650, OLPF crystal filter, this product divide into two species: Single deck and double dec