Hollow surveying retroreflector assembly

Details Hollow surveying retroreflector assembly Hollow surveying retroreflector assembly

1991-01-24

1992-06-16

Gonzalez, Frank

Optical: systems and elements

Signal reflector

3-corner retroreflective

G02B 5122

Patent

active

051229013

ABSTRACT:
A hollow surveying retroreflector assembly is provided which is comprised of a hollow retroreflector received within and adhered to a receptacle. The retroreflector has three plates having optically flat reflecting faces disposed at right angles to each other. The receptacle has a conically configured interior for receiving the retroreflector and for maintaining the perpendicular alignment of the reflecting faces of the plates of the retroreflector. The receptacle having the retroreflector inside is then received within an outer casing to allow for mounting of the hollow surveying retroreflector assembly.

REFERENCES:
patent: 3574448 (1971-04-01), Paine
patent: 3663084 (1972-05-01), Lipkins
patent: 3977765 (1976-08-01), Lipkins
patent: 4189209 (1980-02-01), Heasley
patent: 4740056 (1988-04-01), Bennett
patent: 5024514 (1991-06-01), Bleier et al.

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