Optics: measuring and testing – Range or remote distance finding – With photodetection
Reexamination Certificate
2007-11-14
2010-06-29
Tarcza, Thomas H (Department: 3662)
Optics: measuring and testing
Range or remote distance finding
With photodetection
Reexamination Certificate
active
07746449
ABSTRACT:
A light detection and ranging system includes a mirror unit rotating around a scan axis. The mirror unit includes a receiving portion and a transmitting portion offset by an angle about the scan axis relative to a surface plane of the receiving portion. Respective centroids of the receiving and transmitting portions are positioned at a common point on the scan axis while the receiving and transmitting portions rotate around the scan axis. A transmitter transmits a light pulse toward the mirror unit. The transmitting portion is positioned to reflect the light pulse toward a target. A receiver is positioned to reflect the light pulse reflected from the target toward the receiver. The angle offset compensates for a change between a cone of illumination of the transmitting portion and a field-of-view of the receiving portion resulting from the rotation of the mirror unit.
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Meneely Clinton T.
Ray Mark D.
Swenson James W.
Calfee Halter & Griswold LLP
O'Brien Kevin
Ratcliffe Luke D
Rosemount Aerospace Inc.
Tarcza Thomas H
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