Lens barrel with built-in ultrasonic motor, camera having lens b

Details Lens barrel with built-in ultrasonic motor, camera having lens b Lens barrel with built-in ultrasonic motor, camera having lens b

1995-10-05

1998-01-13

Metjahic, Safet

Photography

With exposure objective focusing means, focusing aid, or...

Lens drive circuit or motor structure

396137, 359696, 359698, G03B 310, G02B 1514

Patent

active

057088721

ABSTRACT:
A lens barrel for a camera includes a photography optical system, an ultrasonic motor, an external manual operation member and a conversion device. The ultrasonic motor includes a vibrating member that generates ultrasonic vibrations and a relative moving member connected with the vibrating member that moves the photography optical system along an optical axis through the ultrasonic vibrations. The external manual operation member is moved manually to move the photography optical system along the optical axis via the relative moving member. The conversion device reduces an amount by which the relative moving member moves in response to an amount by which the external manual operation member is moved. As a result, the external manual operation member can be used to adjust the photography optical system by minute amounts.

REFERENCES:
patent: 4796045 (1989-01-01), Hamanishi et al.
patent: 4893145 (1990-01-01), Matsuda
patent: 4925282 (1990-05-01), Kanno et al.
patent: 5198935 (1993-03-01), Imanari et al.
patent: 5448328 (1995-09-01), Suzuki et al.
patent: 5546233 (1996-08-01), Imanari et al.
patent: 5561564 (1996-10-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Lens barrel with built-in ultrasonic motor, camera having lens b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lens barrel with built-in ultrasonic motor, camera having lens b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens barrel with built-in ultrasonic motor, camera having lens b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-335261