Constant-deviation reflector

Details Constant-deviation reflector Constant-deviation reflector

1989-08-09

1991-12-10

Arnold, Bruce Y.

Optical: systems and elements

Signal reflector

3-corner retroreflective

359836, 359900, G02B 5122, G02B 504

Patent

active

050723138

ABSTRACT:
A constant-deviation device is disclosed which comprises a first reflective element in the form of one or more roof prisms and one or more second reflective elements providing one or more reflections. The first and the second reflective elements are mutually adjustable by rotation about one or more axes thereby to set an angle between the incident and the exiting beam. In one or more planes the angle is substantially unaffected by changes in the direction of incidence of the incident beam.

REFERENCES:
patent: 3424516 (1969-01-01), Snyder
patent: 3762794 (1973-10-01), Arnaud
patent: 3798666 (1974-03-01), Heller et al.
patent: 4171870 (1979-10-01), Bruning et al.
patent: 4230339 (1980-10-01), Moyroud
patent: 4302079 (1981-11-01), White
patent: 4615590 (1986-10-01), Alvarez et al.
patent: 4834529 (1989-05-01), Barrett
"The Optician", vol. 143, No. 3712, May 25, 1962, pp. 513-518, Reflecting Prisms.

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