1986-11-10
1988-03-29
Arnold, Bruce Y.
350395, G02B 530
Patent
active
047339268
ABSTRACT:
A polarizing cube beamsplitter, which is designed for infrared applications, comprises two 45.degree. prisms made of ZnSe. A first anti-reflection layer, which is a Herpin equivalent layer consisting of the triad of sublayers ZnS-ZnSe-Zns, is deposited onto the hypotenuse of a first one of the prisms. Then, a polarizing stack consisting of a plurality of pairs of thin-film layers of alternating high and low refractive indices is formed on the first anti-reflection layer. One layer in each pair of thin-film layers in the polarizing stack is a Herpin equivalent layer consisting of the triad of sub-layers Te-ZnSe-Te, and the other layer in each pair is a thin film of ZnSe. A layer of prism material ZnSe, which is thick enough to be optically polished, is then formed on the second anti-reflection layer. The hypotenuse of the second prism is likewise optically polished, and is pressed onto the optically polished layer of prism material to form a bond. The resulting beamsplitter is of cubic configuration.
REFERENCES:
patent: 4229066 (1980-10-01), Rancourt et al.
patent: 4627688 (1986-12-01), Kobayashi et al.
Arnold Bruce Y.
Lockheed Missiles & Space Company Inc.
Morrissey John J.
Ryan Jay P.
LandOfFree
Infrared polarizing beamsplitter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Infrared polarizing beamsplitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared polarizing beamsplitter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1085579