1988-05-13
1989-10-24
Arnold, Bruce Y.
350287, 33293, G02B 5122, G02B 718
Patent
active
048757608
ABSTRACT:
A 360.degree. reflective prism assembly comprises a mounting member having a central vertical axis and a peripheral surface portion that defines an outer horizontal boundary of the mounting member. A plurality of spaced apart reflecting prisms are arranged around the mounting member and attached thereto at or near the peripheral surface portion thereof. The prism assembly is used with electronic distance meters for measuring the distance between the assembly and meter locations surround the assembly.
REFERENCES:
patent: 2099671 (1937-11-01), Bairey
patent: 3322022 (1967-05-01), Wood
patent: 3834789 (1974-09-01), Brody
patent: 4519674 (1985-05-01), Buckley
Youngren David J.
Youngren John H.
Arnold Bruce Y.
Kachmarik Ronald M.
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