Diaphragm mechanism of zoom lens barrel

Details Diaphragm mechanism of zoom lens barrel Diaphragm mechanism of zoom lens barrel

1992-10-21

1995-04-25

Ben, Loha

Optical: systems and elements

Lens

With light limiting or controlling means

359694, 359699, 359738, 3542711, 354274, G02B 908, G02B 1514, G03B 902

Patent

active

054104327

ABSTRACT:
A diaphragm mechanism in a zoom lens barrel includes a front movable lens group which is moved together with the diaphragm mechanism, a rear movable lens group located behind the front movable lens group, a diaphragm driving member which can engage with a diaphragm driving member provided on an associated camera body, and an intermediate drive transmitting member which transmits movement of the diaphragm driving member of the lens barrel to the diaphragm mechanism which is provided with a rear lens frame holding the rear movable lens group. The intermediate drive transmitting member is supported on the rear lens frame.

REFERENCES:
patent: 4141636 (1979-02-01), Shimojima
patent: 4289385 (1981-09-01), Yamagata
patent: 4299470 (1981-11-01), Shimizu
patent: 4464040 (1984-08-01), Okura et al.
patent: 4473278 (1984-09-01), Hama
patent: 4473281 (1984-09-01), Hama
patent: 4487482 (1984-12-01), Itoh et al.
patent: 4525037 (1985-06-01), Metabi
patent: 4634250 (1987-01-01), Kolwai
patent: 4636041 (1987-01-01), Kotaka et al.
patent: 4666277 (1987-05-01), Tanaka
patent: 5250971 (1993-10-01), Okura

Affiliated with

Also associated with

Rating

Diaphragm mechanism of 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 Diaphragm mechanism of zoom lens barrel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diaphragm mechanism of zoom lens barrel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1571845