skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Pyramid beam splitter

Abstract

The apparatus of the present invention provides means for obtaining accurate, dependable, measurement of bearings and directions for geologic mapping in subterranean shafts, such as, for example, nuclear waste storage investigations. In operation, a laser beam is projected along a reference bearing. A pyramid is mounted such that the laser beam is parallel to the pyramid axis and can impinge on the apex of the pyramid thus splitting the beam several ways into several beams at right angles to each other and at right angles to the reference beam. The pyramid is also translatable and rotatable in a plane perpendicular to the reference beam.

Inventors:
 [1];  [2];  [3]
  1. (Golden, CO)
  2. (Lakewood, CO)
  3. (Boulder, CO)
Issue Date:
Research Org.:
DEPARTMENT OF INTERIOR
OSTI Identifier:
868110
Patent Number(s):
5078473
Assignee:
United States of America as represented by Secretary of (Washington, DC) OSTI
DOE Contract Number:  
AI08-78ET44802
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
pyramid; beam; splitter; apparatus; provides; means; obtaining; accurate; dependable; measurement; bearings; directions; geologic; mapping; subterranean; shafts; example; nuclear; waste; storage; investigations; operation; laser; projected; reference; bearing; mounted; parallel; axis; impinge; apex; splitting; beams; angles; translatable; rotatable; plane; perpendicular; plane perpendicular; reference beam; beam splitter; laser beam; nuclear waste; waste storage; obtaining accurate; provides means; geologic mapping; /359/

Citation Formats

McKeown, Mark H., Beason, Steven C., and Fairer, George. Pyramid beam splitter. United States: N. p., 1992. Web.
McKeown, Mark H., Beason, Steven C., & Fairer, George. Pyramid beam splitter. United States.
McKeown, Mark H., Beason, Steven C., and Fairer, George. Wed . "Pyramid beam splitter". United States. https://www.osti.gov/servlets/purl/868110.
@article{osti_868110,
title = {Pyramid beam splitter},
author = {McKeown, Mark H. and Beason, Steven C. and Fairer, George},
abstractNote = {The apparatus of the present invention provides means for obtaining accurate, dependable, measurement of bearings and directions for geologic mapping in subterranean shafts, such as, for example, nuclear waste storage investigations. In operation, a laser beam is projected along a reference bearing. A pyramid is mounted such that the laser beam is parallel to the pyramid axis and can impinge on the apex of the pyramid thus splitting the beam several ways into several beams at right angles to each other and at right angles to the reference beam. The pyramid is also translatable and rotatable in a plane perpendicular to the reference beam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

Save / Share: