Title:
FILM UNIT WITH LENS
Document Type and Number:
Japanese Patent JP3312988
Kind Code:
B2
Abstract:
PURPOSE: To consecutively change the focal distance of a photographic lens and the visual field of a finder with simple constitution without any cost.
CONSTITUTION: An operation dial 7, a first gear 26 and a second gear 27 are coaxially and integrally formed. The photographic lens is constituted of a first lens 6a and a second lens 6b. When the operation dial 7 is turned, a lens holder unit 15 holding a movable lens 6b is slidably moved along the optical axis 6c of the photographic lens by the first gear to consecutively change the focal distance of the photographic lens. A visual field frame 22b is slidably moved along the optical axis 5c of the finder by the second gear 27 to change the regulation quantity of the optical path of the finder, thereby making the photographing range corresponding to the focal distance of the photographic lens the finder visual field.
Inventors:
Keizu Sugita
Application Number:
JP7759294A
Publication Date:
August 12, 2002
Filing Date:
April 15, 1994
Export Citation:
Assignee:
Fuji Photo Optical Co., Ltd.
International Classes:
G03B13/12; G03B5/00; G03B17/04; G03C3/00; (IPC1-7): G03B17/04; G03B5/00; G03B13/12; G03C3/00
Domestic Patent References:
| JP643521A | ||||
| JP5303133A | ||||
| JP59144633U | ||||
| JP217727U |
Attorney, Agent or Firm:
Kazunori Kobayashi