Bi Series - Narrow Bandwidth Interference - Bandpass Filters

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Highlights Bi685 is designed for use in certain 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 light–particularly red light–is reflected. Bi685 filters are also recommended … Continued

Highlights MidOpt’s Red Edge filter is useful for NDVI/Vegetative Health Monitoring applications. Our Bi725 optical filter isolates the wavelength region where the most rapid change of reflectance occurs in foliage. When plants are stressed or dying, photosynthesis slows down or stops. IR wavelengths are absorbed, while more visible light–particularly red light–is reflected; therefore, the 725nm band … Continued

Bi660 filters are recommended for use with dark red laser diodes and LED lighting operating in the 660-670nm range, in situations where ambient light can be overwhelming or separation from other red lighting wavelengths is needed.