https://www.saidavnglass.com/narrow-bandpass-optical-filter/
High-Quality Narrow Bandpass Optical Filters - Saida Glass Suppliers
Saida Glass Company Limited specializes in custom Narrow Bandpass Optical Filters designed to meet your precise requirements. Trust us for high-quality,...
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https://midopt.com/filters/bn450/
MidOpt BN450 Narrow Indigo Bandpass Filter for Blue LED Lighting
MidOpt BN450 Narrow Indigo Bandpass Filter for fluorescence applications (430-460nm) is suitable for use in LED or laser diode applications.
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https://alluxa.com/optical-filter-catalog/ultra-narrow-bandpass/434-2-od4-ultra-narrow-bandpass/
434-2 OD4 Ultra Narrow Bandpass Filter - Alluxa Optical Filters and Thin-Film Coatings
May 12, 2025 - Ultra-narrowband optical interference filter with a 434 nm center wavelength (CWL), a 2 nm full-width at half-maximum (FWHM), and wide-range OD4 out-of-band...
https://www.iberoptics.com/es/filtros-opticos/alluxa_aua-unbp-53221-025-od6-381mm-2582.html
Alluxa Ultra-Narrow Bandpass Filter: centered in 532.21 nm, FWHM of 0.25 nm, OD6
Alluxa Ultra-Narrow Bandpass Filter, 532.21 nm center wavelength, 0.25 nm FWHM and OD6 blocking. High performance with the narrowest bandwidth response.