Patent ID: 11921326
Assignee: SANMINA CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. An optical rotary joint comprising:
a first annular portion having a first face substantially orthogonal to a rotational axis of the rotary joint;
a second annular portion configured to rotate with respect to the first annular portion about the rotational axis, the second annular portion having a second face substantially orthogonal to the rotational axis and facing the first face;
a plurality of optical receivers on the first face facing the second face;
a plurality of optical receivers on the second face facing the first face;
a plurality of optical transmit beam launchers on the first face configured to transmit optical signals to the optical receivers on the second face as the second annular portion rotates with respect to the first annular portion; and
a plurality of optical transmit beam launchers on the second face configured to transmit optical signals to the optical receivers on the first face as the second annular portion rotates with respect to the first annular portion;
wherein the plurality of optical transmit beam launchers are configured to transmit optical signals at two different wavelengths; and
wherein the plurality of optical receivers further comprise one of two different optical bandpass filters to pass a respective one of the two different wavelengths.