Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1985-10-18
1987-06-23
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356152, 356400, G01C 308, G01B 1100
Patent
active
046748709
ABSTRACT:
A laser alignment system includes a transmitter and one or more receivers. The transmitter produces an alignment field by projecting laser energy in a non-planar reference cone, and the receivers locate this reference cone with photodetectors. The laser energy in the alignment field is modulated at 8 kHz and the signals produced by the photodetectors are filtered and amplified to increase the range of the system. Each receiver operates a display which indicates when it is aligned in the reference cone, and it produces an out-of-level indication when the transmitter is not properly aligned.
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Cain Gary L.
Goren Sidney B.
Buczinski Stephen C.
Sammons Barry E.
Spectra-Physics Inc.
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