Controlling device of tunable filter

Details Controlling device of tunable filter Controlling device of tunable filter

1998-03-25

1999-10-19

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74104, 74509, 250226, 359889, F16H 2520

Patent

active

059669870

ABSTRACT:
A controlling device of a tunable filter includes a base, a tunable filter on the base along an optical path between first and second optical fibers, a holder rotatably installed on the base to support the tunable filter, a driving unit installed on the base for providing a rotational force, a speed reducing device, and a rotating unit for rotating the holder in accordance with the linear movement of the movable member. The speed reducing device has a worm gear extending from a rotating shaft of the driving unit, and a movable member provided with a threaded hole engaged with the worm gear to allow reciprocal movement along the worm gear according to the rotation direction of the worm gear.

REFERENCES:
patent: 2338271 (1944-01-01), Ulanet
patent: 3402613 (1968-09-01), Neusel et al.
patent: 3874245 (1975-04-01), Krai et al.
patent: 4825714 (1989-05-01), Yamanaka et al.
patent: 5327062 (1994-07-01), Byers
patent: 5506920 (1996-04-01), Suemura et al.
patent: 5646399 (1997-07-01), Fukushima et al.

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