Optics: measuring and testing – Range or remote distance finding – With photodetection
Reexamination Certificate
2007-08-27
2009-08-18
Tarcza, Thomas H (Department: 3662)
Optics: measuring and testing
Range or remote distance finding
With photodetection
Reexamination Certificate
active
07576837
ABSTRACT:
A micro-mirror optical tracking and ranging system comprises an optical transceiver having a Micro-Electro-Optical Mechanical System (MEOMS) micro-mirror beam steering system and an electronic control and operating system for processing electronic signals. An optical transceiver and MEOMS micro-mirror beam steering system comprises two oppositely installed micro-mirrors controlled so that they spin and tilt synchronously and project a laser beam out in a wide solid angle and interval in a substantially conically shaped scanning pattern. Such an optical transmitter system provides a steered frequency-modulated continuous-wave (FMCW) laser beam. When a laser beam waveform reflects off of an object within the scanned patter it is detected by the optical receiver an electronic control and operating system processes the detected laser beam waveform by mixing it with the original transmitted laser beam waveform and calculates the precise distance and location of the object.
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Liu Jony Jiang
von der Lippe Christian
Anderson Lawrence E.
Miller Guy M.
Ratcliffe Luke D
Tarcza Thomas H
The United States of America as represented by the Secretary of
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