Clutch apparatus for zoom lens barrel

Details Clutch apparatus for zoom lens barrel Clutch apparatus for zoom lens barrel

1995-10-06

1997-12-23

Nelms, David C.

Optical: systems and elements

Lens

With support

359696, G02B 702

Patent

active

057012083

ABSTRACT:
A driving apparatus for a zoom lens barrel has a driving ring for moving a lens system and a mechanism for movably supporting the driving ring for movement along an optical axis of the lens system. A gear train is supported by the supporting mechanism, a power source is provided in a camera body, and a mechanism for transmitting torque generated by the power source to the driving ring is provided. The torque transmitting mechanism includes the gear train, and a mechanism for disconnecting the torque transmission path from the power source to the driving ring if a torque above a predetermined value is applied to the driving ring. The disconnection mechanism is disposed in the gear train and is supported by the supporting mechanism.

REFERENCES:
patent: 4149775 (1979-04-01), Blake
patent: 4298266 (1981-11-01), Ludwig
patent: 4958178 (1990-09-01), Yoshida et al.
patent: 5146260 (1992-09-01), Yamamoto
patent: 5222407 (1993-06-01), Sekiguchi
patent: 5264963 (1993-11-01), Ueyama
patent: 5349408 (1994-09-01), Nomura et al.
patent: 5394210 (1995-02-01), Nomura et al.
patent: 5430516 (1995-07-01), Uziie et al.

Affiliated with

Also associated with

Rating

Clutch apparatus for zoom lens barrel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clutch apparatus for zoom lens barrel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clutch apparatus for zoom lens barrel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1805439