Midwest Optical Systems Bi808-49 2/3" Varifocal Lens 0mm / Rear Φ20

0mm / Rear Φ20

8/12mm 21-1093543 Standard Lens These lenses are designed for use at long working distances--from ~2m out to infinity

1 mounting plate

Midwest Optical Systems Bi905-77 Near-IR Interference Bandpass M77 Bandpass Interference Filters

Midwest Optical Systems Bi808-49 2/3" Varifocal Lens 0mm / Rear Φ20Midwest Optical Systems Bi808 49 Near IR Interference Bandpass M49 Bandpass Interference Filters Bi Series Narrow Interference Bandwidth 20 35nm FWHM; Narrow bandwidth High transmission ? 85% Designed for use with laser diodes Ideal wavelength separation when multiple light sources of similar wavelengths are present Reflective, mirror type surface that helps minimize thermal effects Available in sizes up to 79. 5mm sq. APPLICATIONS: Bi Series are