Patent ID: 6900437
Filing Date: 2005-05-31
Classification: G02B

Abstract:
1. A lighting system for night vision applications comprising: a near infrared light source; a visible, non-red light source; a beamsplitter arranged to reflect light emitting from one of said near infrared light source or visible light source and transmit light emitting from the other of said near infrared light source or visible light source so as to produce a color-corrected light source; an optical element disposed a distance from said color-corrected light source, the optical element having an input surface for receiving light from said color-corrected light source and an output surface for emitting said received light in a desired emission pattern; and wherein said optical element output surface is approximately perpendicular to said input surface, and said optical element comprises a stepped surface angled between the input surface and the output surface, the stepped surface having a plurality of reflecting facets arranged such that the light is reflected by the plurality of reflecting facets in passing from the input surface to the output surface.