Retroreflector with controlled divergence made by the method...

Details Retroreflector with controlled divergence made by the method... Retroreflector with controlled divergence made by the method...

2007-01-30

2007-01-30

Phan, James (Department: 2872)

Optical: systems and elements

Signal reflector

3-corner retroreflective

C359S900000, C264S001900

Reexamination Certificate

active

11349835

ABSTRACT:
A cube corner array with minute modifications of the dihedral angles of some of the cube corners is produced by introducing a stress or change via the opposite side of the substrate. The array having aberrated elements can be replicated for use in the manufacture of a tool, and the tool can be used in the manufacture of retroreflective products of broader divergence.

REFERENCES:
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patent: 6231797 (2001-05-01), Bernard et al.
patent: 2003/0075815 (2003-04-01), Couzin et al.
Yoder, Jr., P.A., “Study of Light Deviation Errors in Triple Mirrors and Tetrahedral Prisms,” J. Optical Soc. Amer., vol. 48, No. 7, pp. 496-499, Jul. 1958.

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