MidOpt - LP645 Dark Red Longpass Filter

The MidOpt LP645 Dark Red Longpass Filter is recommended for night vision applications using a filtered broadband light source. The LP645 blocks most visible (VIS) light while passing deep red and near-infrared (IR) wavelengths. To block longer wavelengths including the IR, see the MidOpt BP660 or BP695 Bandpass Filters. If the application required blocking IR light for easier subject matter recognition, the MidOpt BP660 is recommended. MidOpt Longpass Filters have a broad, Gaussian passband to mimic and accommodate the entire output of the most common LED wavelengths, are double-side polished for exceptional parallelism and optical flatness and are anti-reflection (AR) coated to limit glare and minimize reflection loss.