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...

2006-01-10

2006-01-10

Phan, James (Department: 2872)

Optical: systems and elements

Signal reflector

3-corner retroreflective

C359S900000, C264S001900, C428S167000

Reexamination Certificate

active

06984047

ABSTRACT:
A ruling of cube corner elements comprising intersecting ruled vee-grooves is characterized in that at least one of the vee-grooves is made such the substrate being ruled and the cutting tool are oscillated with respect to one another during the ruling of the vee-groove. Rulings made in accordance with the instant invention can be designed to produce a cube corner element having broader divergence.

REFERENCES:
patent: 3384348 (1968-05-01), Wicker
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), Appledorn et al.
patent: 4938563 (1990-07-01), Nelson et al.
patent: 6015214 (2000-01-01), Heenan et al.
patent: 6253442 (2001-07-01), Benson et al.
“Study of Light Deviation Errors in Triple Mirrors and Tetrahedral Prisms”, P.R. Yoder, Jr., J.Optical Soc. Amer., vol. 48, No. 7, pp. 496-499 1958.

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