Interference Filters

interference band pass filters are relatively inexpensive wavelength selectors that allow transmission of a predetermined wavelength while rejecting or blocking other wavelengths. Interference filters are widely used in instrumentation for clinical chemistry, environmental testing, colorimetry, elemental and laser line separation, flame photometry, fluorescence, immunoassays, etc. 

specifications:

• central wavelength (cwl) tolerance: ±2nm 
• full width-half maximum (fwhm): 10nm 
• operating temp.range: -10° c to +70° c 
• surface quality: 80-50 
• blocking: 100 nm to 1200nm 
• application: water and environmental testing, clinical chemistry, colorimetry, photometry, lasers, color sorting ,sensing and detecting

optica can provide following typical narrow bandpass filter: cwl(nm) 340, 405, 420 ,430 , 450 , 470, 480, 492 ,500 505,510, 520, 532, 540, 546 ,550, 580,590, 600 610, 630, 650, 690,730,780,830,900,940,1064