BP500nm/BP657nm dual bandpass filter

Ruicheng Optoelectronics produces this product, which is an ultra narrow dual narrow band in terms of optical indicatorsoptical filter， The passband width of 500nm is 3nm, and the passband width of 657nm is 3nm,optical filterAllow light with a center wavelength of around 500nm and 657nm to pass through, and cut off light outside the passband to 1100nm. This product uses imported glass coating from Germany's Schott BF33 to achieve this. Of course, other substrate materials can also be used. If you have special requirements, please contact our business personnel for customization.

Different from the standard version of dual narrowbandoptical filterShenzhen Ruicheng Optoelectronics' dualBandpass filterDeveloped based on astronomical observation filters and using magnetron sputtering coating technology, its significant advantage is an average transmittance of over 98% within the passband range, with a curve steepness of only 1nm. Therefore, the energy is very concentrated within the bandwidth range, and it can fully capture deep hole targets such as nebulae and star clusters. Its performance can completely replace high-end imported brands such as SEMRCOK, Chroma, THORLABS, etc.

Technical Parameters:
Process: Magnetron Sputtering Coating;
Product material: Substrate material can be used according to customer requirements;
Center wavelength (CWL): 500± 1nm,657nm± 1nm；
Bandwidth (FWHM): 3+ 0.5nm,3nm± 0.5nm；
Incident angle: 0 degrees;
Peak transmittance (T peak):>90%;
Cut off depth Blocking: optical density>; OD5@200 ~1200nm；
Dimension: Diameter 46mm (1 inch and 2 inches) (any size can be customized according to customer requirements);
Surface quality: 40/20;
Surface parallelism:λ /4；
Application: The dual bandpass filter can be used for astronomical observation filters, fluorescence detection analyzer emission filters, fluorescence microscopes, biochemical analysis and detection, criminal investigation detection, iris recognition, biochips, enzyme-linked immunosorbent assay (ELISA), spectrophotometers, medical physical and chemical analysis equipment, medical and clinical instruments, photographic filters, life sciences and other optical instruments

Actual measured spectral curve: