Light Red Bandpass Filter.
Recommended for use with red laser diodes and LEDs.
The MidOpt BP635 filter is recommended for 610-650nm LED and laser diode lighting. Because of its broad bandwidth and high peak transmission, the single substrate, hard-coated BP635 works very well for all lighting applications in this range.
Colored longpass filters have long been recommended for use with monochrome cameras to aid in increased contrast and resolution. These filters block UV and shorter visible wavelengths, and pass longer wavelengths of light. Except in those few cases where an IR blocking or other shortpass filter is incorporated into the camera or sensor, MidOpt will often recommend the use of a broad color bandpass filter (whose designs incorporate these longpass filters) over color longpass filters alone.