Rotating optical joint

Details Rotating optical joint Rotating optical joint

2005-05-24

2005-05-24

Bovernick, Rodney (Department: 2874)

Optical waveguides

With optical coupler

Movable coupler

Reexamination Certificate

active

06898346

ABSTRACT:
A rotating optical joint has two organs which are able to rotate independently of one other on a common axis (14). Collimators (18, 20) are mounted directly opposite one another on the organs, in an arrangement such that they permanently provide a variation of the power of the transmitted signal of less than 25%, during relative rotation of the said organs. The total number of collimators (18, 20) is preferably less than or equal to eight. Advantageously, three collimators (20) are mounted on one of the organs and four collimators (18) are mounted on the other organ.

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Koch, Walter W. et al.;Proof-of-concept model of a multichannel off-axis passive bidirectional fiber optic rotary joint; 1988; SPIE vol. 931 Sensor Fusion, pp. 94-97.
Lewis, N. et al.;A four channel bidirectional data link using wavelength division multiplexing; 1985; SPIE vol. 574 Fiber Optic Couplers, Connectors, and Splice Technology II, pp. 47-54.

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