Pyramid beam splitter

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868110

McKeown, Mark H ^[1]; Beason, Steven C ^[2]; Fairer, George ^[3]

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1. Golden, CO
2. Lakewood, CO
3. Boulder, CO

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.

• Research Organization: DEPARTMENT OF INTERIOR
• DOE Contract Number: AI08-78ET44802
• Assignee: United States of America as represented by Secretary of (Washington, DC)
• Patent Number(s): US 5078473
• OSTI ID: 868110
• Country of Publication: United States
• Language: English

Related Subjects

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
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