Longwave Pass Filters: Visible

Visible Longwave Pass (VIS LWP) Filters transmit wavelengths longer than their specified 50% cut-on wavelength and block shorter wavelengths. Stock filters are optimized for collimated input at normal incidence and ambient temperature (0° AOI, f/inf, 298K). Out-of-band (OOB) transmission levels are <=0.01% average and <=0.1% maximum in the cited blocking range. Custom visible longwave pass filters can be designed, manufactured, and verified to meet almost any spectral and/or system operating requirement.