Title:
FILM UNIT WITH LENS
Document Type and Number:
Japanese Patent JP3504718
Kind Code:
B2
Abstract:
PURPOSE: To prevent uneven exposure and to execute exposure for a low- luminance subject.
CONSTITUTION: When a pawl part 76a is kicked by the kicking lever of a film unit with a lens, a turning lever 76 is turned forward and backward once. The turning of the lever 76 is transmitted to two shutter blades 84 and 85 through a shutter driving lever 78, and the shutter blades 84 and 85 are opened/closed between a closing position for closing a shutter aperture 83a and an opening position. The levers 76 and 78 are coupled through a coupling pin 76d and a cam hole 78e. The cam hole 78e is constituted of a driving cam hole 78f for opening/closing the shutter blades 84 and 85 by a little turning of the lever 76, and a holding cam hole 78g for holding the shutter blades 84 and 85 in a state where it is at the opened position by the excess turning of the lever 76.
Inventors:
Bunsho Kawamura
Hiroshi Katsura
Hideo Sasashima
Hiroshi Katsura
Hideo Sasashima
Application Number:
JP7588494A
Publication Date:
March 08, 2004
Filing Date:
April 14, 1994
Export Citation:
Assignee:
Fuji Photo Optical Co., Ltd.
Fuji Photo Film Co., Ltd.
Fuji Photo Film Co., Ltd.
International Classes:
G03C3/00; G03B9/10; G03B9/14; (IPC1-7): G03B9/10; G03B9/14; G03C3/00
Domestic Patent References:
| JP1253719A | ||||
| JP5127220A | ||||
| JP2287332A | ||||
| JP567920U | ||||
| JP4516213Y1 | ||||
| JP3211067Y1 |
Attorney, Agent or Firm:
Kazunori Kobayashi