Spectral Response

Spectral Response measures a camera’s ability to detect a signal, or respond, to a particular wavelength of illumination. Camera response is often provided as a function of wavelength across a given wavelength spectrum. Quantifying a camera’s spectral response enables absolute radiometric calibration.

I2R measures camera spectral response from the ultraviolet (UV) through the thermal infrared (250 nm – 14,000 nm) using quartz-tungsten-halogen (QTH) lamps, xenon arc lamps or black body sources spectrally parsed with monochromators. For most cameras provided illumination is a few nm wide spectrally and generated in steps as small as 1 nm. Measured camera response is compared to calibrated power meter measurements

I2R provides customers with:

• Peak normalized measured camera spectral response as a function of wavelength in a wavelength region of interest