Patent ID: 7298484

Claim:
An imaging sensor system that images in two different spectral bands a light beam traveling on a light path from a target, the sensor system comprising: an imaging sensor operable to image light of the two different spectral bands; a common optics having at least one reflective or refractive optical element, wherein the light beam of each of the two different spectral bands from the target reaching the imaging sensor encounters each optical element of the common optics; and a wavelength-selective beamsplitter on the light path between the target and the imaging sensor, wherein the wavelength-selective beamsplitter splits the light beam into two subbeams, one subbeam for each of the two different spectral bands, that are respectively incident upon two different locations of the imaging sensor, and wherein the wavelength-selective beamsplitter comprises a planar mirror having a mirror plane and a planar wavelength-selective dichroic element having a dichroic plane, and wherein the mirror plane is not parallel to the dichroic plane.