AUTOMATIC ALIGNMENT SYSTEM FOR COUPLING MULTIPLE LIGHT SOURCES

WIPO Patent Application WO2001016639

A9

A system for coupling up one or more light sources to one or more destinations is provided. Under the present invention, the transmission efficiency from a light source to a destination is optimized regularly on an automatic basis by monitoring the intensity of the light transmitted. In a preferred embodiment, the system includes a source fiberoptic cable for bundling up light emitted from a multitude of light sources, a destination fiberoptic cable for receiving light transmitted from the source fiberoptic cable, a motorized positioning stage for aligning the source and the destination fiberoptic cables, and a feedback servo control for adjusting the motorized positioning stage to accurately align the source and the destination fiberoptic cables based on the intensity of the light transmitted by the source fiberoptic cable. In operation, the intensity of the light transmitted by the source fiberoptic cable is detected by the feedback servo control. Based on the intensity reading, the feedback servo control selectively directs the motorized positioning stage to align the source and the destination fiberoptic cables in an optimal position to improve transmission efficiency.

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YETSO STEPHEN C
NGUYEN QUAN
ANDREWS TIMOTHY

PCT/US2000/024247

September 12, 2002

August 31, 2000

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BIO RAD LABORATORIES (US)

G02B6/35; (IPC1-7): G02B26/02

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