Multispectral illuminator

Abstract

A multispectral illuminator includes an array of tapered non-imaging collection optics, a plurality of arrays of LED die and a lens system. Each tapered non-imaging collection optic has an input face and an output face. Each LED die has an optical spectrum and is disposed proximate to one of the input faces. The lens system is configured to receive light emitted from the output faces and to generate a composite image at an illumination plane. The composite image includes a superposition of the images of each output face. A control module controls the intensities of the LED die and may be programmed to provide a predetermined optical spectrum for the composite image. In some embodiments, the tapered non-imaging collection optics are configured to compensate for keystone effect and intensity gradient in the images of the output faces.

Dependencies are inferred from the claim text.