Compact test range for active optical target detectors

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10564269
APP PUB NO 20190250258A1
SERIAL NO

15896256

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Abstract

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For test/calibration of an electro-optic range-finding device, one or more fiber bundles each are selected to have a length corresponding to predetermined time-of-flight for light pulses. An input end is positioned proximate to the laser aperture of the range-finding device to receive a portion of light emitted through the laser aperture, and the output end is positioned to emit light from the respective fiber bundle through the detector aperture of the range-finding device. A fiber attenuator is connected along each fiber of the one or more fiber bundles to attenuate an amplitude of light propagating through the respective fiber by an amount corresponding to a target of known reflectance and distance. The one or more fiber bundles are each coiled to reduce a linear distance over which the one or more fiber bundles extend. The one or more fiber bundles may each comprise a plurality of fibers.

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Patent Owner(s)

Patent OwnerAddress
RAYTHEON COMPANY870 WINTER STREET WALTHAM MA 02451-1449

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crawford, John Vail, US 103 1071
Millard, John Sahuarita, US 14 231

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