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...

2006-04-18

2006-04-18

Phan, James (Department: 2872)

Optical: systems and elements

Signal reflector

3-corner retroreflective

C359S900000, C264S001900

Reexamination Certificate

active

07029134

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: 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.
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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