Optical retro-reflector

Details Optical retro-reflector Optical retro-reflector

1990-09-14

1992-06-30

Bovernick, Rodney B.

Optical: systems and elements

Signal reflector

Including a curved refracting surface

G02B 5126

Patent

active

051268795

ABSTRACT:
Optical retro-reflector in particular for purposes of interferometry. It has the form of a sphere and is fashioned from an optically refractive material, the index of refraction of which is at least approximately 2, but by preference precisely 2. The reflecting surface of the sphere is coated with a film of reflecting material, preferably vapor-deposited metal. The retro-reflector can be manufactured cheaply and with a high level of surface quality. It has a high degree of reflecting power.

REFERENCES:
patent: 1934492 (1933-11-01), Garbarini
patent: 4889409 (1989-12-01), Atcheson

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