Interference Filters

We are offering our customers a wide range of Interference Filters, which are available following Specifications :-
Centre Wavelength(CWL): Customized according to the applications
FWHM(50% point): 6nm, 10nm, 20nm, 30nm to 120nm
Transmission: Tave>85%
Size: customized, from 2x2mm to Dia. 110mm, +/-0.1mm
Thickness: 0.3~3mm
Surface quality: 60/40~20/40
Clear aperture:>90%, or full surface coatings
Substrate: vary customized, such as B270, BK7, crystal, float or sodalime glass etc.
a Different centre wavelengths (CWL), from 240nm, 405nm, 550nm, 632nm, 650nm to 850nm, 940nm, 1064nm, 1540nm and even 2168nm could be available for development.
a Vary half bandwidth are available for the design and production, the most small bandwidth could be 6nm (+/-3nm), to standard, +/-15nm, +/-30nm or +/-50nm etc.
a Ion source assisted coating to reach a heat resistance, such as 70 C-degree, small temperature drift.
Narrow Bandpass Filter is a kind of filter, which only transmit a small bandwidth of spectrum, but block all others, used for vary different applications which only required a certain range of light. The light could be UV range, visible light or NIR light. Narrow Bandpass filters have many different centre wavelengths (CWL), from 240nm, 405nm, 550nm, 632nm, 650nm to 850nm, 940nm, 1064nm, 1540nm and even 2168nm, every one of which can be specially used for certain equipment or requirement.