Bi685-25.4 Narrow Bandwidth Interference Dark Red Bandpass Filter 25.4 mm / C-Mount

Midwest Optical SystemsSKU: Bi685-25.4

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Sale price$230.00 USD

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Description

MidOpt Bi685-25.4 Narrow Bandwidth Interference Dark Red Bandpass Filter

Bi685 is designed for use in specific aerial vegetative health monitoring applications. This filter isolates the 685nm wavelength range used in some red light vegetative health indices. When plants are stressed or dying, photosynthesis slows down or stops. IR wavelengths are absorbed, while more visible, particularly red, is reflected.

Bi685 filters are also recommended for use with dark red laser diodes and LED lighting operating in the 680-690nm range, exceptionally when ambient light can be overwhelming or separation from other red lighting wavelengths is needed.

MidOpt Bi685-25.4 Technical Specifications:

Product Line / Series Bi - Narrow Bandwidth Interference
Filter Model Bi685
Filter Type Narrow Bandwidth Interference Dark Red Bandpass
StablEDGE No
Useful Range 675nm - 692nm
Tolerance +/- 5nm
Peak Transmission ≥90%
Surface Quality 40/20
Filter Size 25.4mm
Filter Thread 25.4 mm / C-Mount
Outer Diameter 27.5mm
Clear Aperture 21mm
Overall Thickness 7mm
Exposed Thickness 5.2mm
FWHM 25nm
Average Transmission Not Specified
Brand Midwest Optical Systems

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