Optics: measuring and testing – Angle measuring or angular axial alignment – Relative attitude indication along 3 axes with photodetection
Reexamination Certificate
2006-09-26
2006-09-26
Tarcza, Thomas H. (Department: 3662)
Optics: measuring and testing
Angle measuring or angular axial alignment
Relative attitude indication along 3 axes with photodetection
C356S139100, C178S018090
Reexamination Certificate
active
07113270
ABSTRACT:
An elongate object optically determines at least one of its orientation parameters relative to a plane surface. A probe radiation beam is directed from the object at various angles σ to various locations on the plane, where the angle σ is a periodic function of time. Two angularly-selective radiation detectors oriented at fixed angles τ1and τ2sense scattered portions of the beam from two locations at two corresponding times. The orientation parameter is computed from a time difference Δt=t2−t1between the two times.
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Buermann Dale H.
Mandella Michael J.
Alsomiri Isam
Electronics Scripting Products, Inc.
Lumen Intellectual Property Services Inc.
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