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...

2005-03-29

2005-03-29

Phan, James (Department: 2872)

Optical: systems and elements

Signal reflector

3-corner retroreflective

C359S900000, C264S001900

Reexamination Certificate

active

06871966

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:
patent: 3684348 (1972-08-01), Rowland
patent: 3712706 (1973-01-01), Stamm
patent: 3833285 (1974-09-01), Heenan
patent: 4478769 (1984-10-01), Pricone et al.
patent: 4775219 (1988-10-01), Appeldorn et al.
patent: 4938563 (1990-07-01), Nelson et al.
patent: 6015214 (2000-01-01), Heenan et al.
patent: 6231797 (2001-05-01), Bernard et al.
“Study of Light Deviation Errors in Triple Mirrors and Tetrahedral Prisms,” J. Optical Soc. Amer., vol. 48, No. 7, pp. 496-499, Jul., 1958 by P.R. Yoder, Jr.
U.S. Appl. No. 10/167,135, Couzin et al., filed Jun. 11, 2002.

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