Zoom lens barrel with focal length detector

Details Zoom lens barrel with focal length detector Zoom lens barrel with focal length detector

1993-04-16

1994-07-05

Wintercorn, Richard A.

G03B 118

Patent

active

053271840

ABSTRACT:
A zoom lens barrel includes a code plate and brushes which selectively come into contact with the code plate to detect focal length variance during zooming, so that focal length data thus detected can be transmitted to a camera body through a flexible printed circuit (FPC) board, one of the code plate land brushes being secured to a mounting member and the other of the brushes or code plate being secured to a linearly movable member. The brushes are provided with elastically deformable lengths which can be connected to the FPC board, and a connecting portion thereof connected to the code plate. The mounting member or linearly movable member to which the brush assembly is secured is provided with an FPC board inserting groove with which the elastically deformable legs of the brushes can come into contact. The FPC board is provided with an insertion portion which is inserted between the FPC board inserting groove and the elastically deformable legs.

REFERENCES:
patent: 4717933 (1988-01-01), Ando et al.
patent: 4936664 (1990-06-01), Haraguchi et al.
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 4967218 (1990-10-01), Numako et al.
patent: 4999656 (1991-03-01), Shimizu et al.
patent: 5012273 (1991-04-01), Haraguchi et al.
patent: 5016032 (1991-05-01), Haraguchi et al.
patent: 5051764 (1991-09-01), Nomura
patent: 5142315 (1992-08-01), Haraguchi et al.
patent: 5144493 (1992-09-01), Nomura
patent: 5150145 (1992-09-01), Haraguchi et al.
patent: 5155515 (1992-10-01), Kohmoto et al.
patent: 5157429 (1992-10-01), Haraguchi et al.
patent: 5162831 (1992-11-01), Haraguchi et al.
patent: 5196880 (1993-03-01), Ishibashi et al.
patent: 5214462 (1993-05-01), Haraguchi et al.
United Kingdom Search Report.
Reexam No. Re. 9002261, Haraguchi et al., dated May 25, 1993.

Affiliated with

Also associated with

Rating

Zoom lens barrel with focal length detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zoom lens barrel with focal length detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens barrel with focal length detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-799374