Prism assembly

Details Prism assembly Prism assembly

1988-09-14

1994-05-10

Bovernick, Rodney B.

Optical: systems and elements

Signal reflector

3-corner retroreflective

356 5, G02B 5122

Patent

active

053112229

ABSTRACT:
A miniature prism assembly which in its preferred embodiment utilizes a one inch prism, a stationary target, a yoke, and a housing bracket, all in an integrated unit which can be strung with a plumb line without removing the reflective prism housing from the yoke and which can be strung in the same manner irrespective of whether the prism is adjusted for a 0 or 30 millimeter offset and while the target remains with the yoke. Further, the present invention utilizes a stationary target easily mounted and having a center line that does not alter its position irrespective of the elevation of the prism. The novel yoke and target of the present invention permit the stringing of a plumb line while the target remains affixed to the yoke by utilizing unique bushings and dual purpose slots which permit plumb line stringing around the periphery of the yoke and simultaneously assist to retain the target.

REFERENCES:
patent: 4311382 (1982-01-01), Buckley et al.
patent: 4343550 (1982-08-01), Buckley et al.
patent: 4470664 (1984-09-01), Shiragawa

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