Objective lens driving device

Details Objective lens driving device Objective lens driving device

1984-12-26

1987-07-14

Punter, William H.

Brakes

Wheel

Transversely movable

74574, 188378, 350255, G02B 704, F16F 712, F16F 1512

Patent

active

046799036

ABSTRACT:
In an objective lens driving device, a movable member shiftable along and rotatable around a vertical shaft is provided for supporting the objective lens to be movable therewith vertically and horizontally. An electromagnetic driving means is provided for driving the movable member as desired. A damper member formed into an annular configuration symmetric around a central axis of a bearing portion provided on the movable member is provided between the movable member and a stationary portion of the device for damping and positioning the movable member for maintaining the objective lens to its neutral position.

REFERENCES:
patent: 4145936 (1979-03-01), Vincent et al.
patent: 4472024 (1984-09-01), Konomura et al.
patent: 4473274 (1984-09-01), Yano et al.
patent: 4482986 (1984-11-01), Noda et al.
Patent Abstracts of Japan, "Three-Dimensional Parallel Driver for Bobbin", vol. 6, No. 59, Apr. 16, 1982.
Patent Abstracts of Japan, "Actuator", vol. 7, No. 184, Aug. 13, 1983.

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