Interchangeable lens barrel

Details Interchangeable lens barrel Interchangeable lens barrel

1981-08-31

1982-11-16

Gonzales, John

350255, 354 25, G03B 300

Patent

active

043592767

ABSTRACT:
An interchangeable lens barrel for an automatic focussing camera comprising focussing lens means which are screwed in a non-rotatable member of the lens barrel and which rotate about and move in directions of the optical axis, a driving mechanism for rotating the focussing lens means in response to a drive signal from a focus detecting device of a camera body to which the lens barrel is to be mounted, said focussing lens means being capable of moving between front and rear extremities which are defined by the engagement of an abutment provided on the focussing lens means with a pair of stops which are provided on the non-rotatable member of the lens barrel and which come into contact with the abutment to limit the movement of the focussing lens means, wherein the improvement comprises brake means provided in the vicinity of the stops and engaged by the abutment to increase the resistance against the movement of the focussing lens means at the extremities.

REFERENCES:
patent: 3165044 (1965-01-01), Himmelsback
patent: 3594068 (1971-07-01), Kirstein et al.
patent: 4067031 (1978-01-01), Enomoto
patent: 4210387 (1980-07-01), Ogawa

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1434347