Patent ID: 7312924
Filing Date: 2007-12-25
Classification: A61B,A61C,G01B

Abstract:
1. An image multiplexer to combine multiple views of an object, comprising: a beam splitter; a compensation window positioned on the first side of the beam splitter; and first and second quarter wave retarders adjacent to the beam splitter and the compensation window; and a first polarizing beam splitter adapted to direct a first light beam from the object through the first quarter wave retarder, the compensation window, the beam splitter, the second quarter wave retarder, and through a second polarizing beam splitter; and wherein the second polarizing beam splitter is adapted to direct a second light beam from the object through the second quarter wave retarder to the beam splitter where the second light beam is reflected back through the second quarter wave retarder and through the second polarizing beam splitter.