Patent ID: 6469834
Filing Date: 2002-10-22
Classification: G02B

Abstract:
An optical illumination apparatus, comprising:(a) an illumination source; (b) a first array of lenslets disposed along an illumination path of said illumination source; (c) a conduit array, having a plurality of apertures corresponding to a plurality of said lenslets of said first array of lenslets, said conduit array having non-reflective optically absorptive walls; (d) a second array of lenslets, aligned with said conduit array such that rays passing through a respective one of said first array of lenslets and not intercepting said non-reflective optically absorptive walls intersect a respective one of said second array of lenslets; and (e) a relay optical structure for integrating light emitted from said second array of lenslets on a focal plane, wherein said conduit array is adapted to dissipate heat from absorbed illumination.