Self-aligning baseline plane instrument
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United States of America Patent
Stats
-
Jun 9, 1998
Grant Date -
N/A
app pub date -
Dec 12, 1996
filing date -
Dec 12, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for producing a pair of beams of light at a desired angle to each other. A light emitter and any associated optics generate a first beam of light which is directed to a remote target. The target reflects the light back, which is detected by a light detector. Separately, a second light emitter and any associated optics generates a second beam of light at an angle to the first plane of light. The second light emitter and optics is on a support structure which is moveable with respect to the first structure, and in one embodiment shares the same axis as the first support structure for holding the first light emitter and its optics. An angle measuring device indicates the angle of the second light beam with respect to the first light beam. The angle is maintained by adjusting the first support structure to maintain the reflection of the first beam to the detector.
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