Optical Lens, Optical Filter, Band Pass Filter manufacturer / supplier in China, offering Biomedical Filters Fluorescent Excitation Filter 400-850nm Narrow Bandpass Filter, K9 B270 Bk7 or Balck Glass Optical Narrow Bandpass 1550nm IR Filter, IR Cut Filter Lowgpass 650nm Optical Short Pass Filters with 1 Inch Round Shape and so on.