Title:
カメラ用シャッタ装置及び濃度フィルタ装置
Document Type and Number:
Japanese Patent JP4481421
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To increase the actuating amount of a blade while miniaturizing a shutter device also used as a diaphragm. SOLUTION: In the camera shutter device provided with a first sector body 40 and a second sector body 50 performing the opening/closing or the stopping of an aperture part 10a through which light is transmitted by moving back and forth in a direction in which they approach to and separate from each other and an electromagnetic actuator 60 to drive the first sector body and the second sector body, it is provided with an oscillating lever 90 linking the first sector body and the second sector body so as to move them back and forth by amplifying the driving amount of the electromagnetic actuator 60 by turning.
Inventors:
Arisaka Kunio
Application Number:
JP2000093035A
Publication Date:
June 16, 2010
Filing Date:
March 28, 2000
Export Citation:
Assignee:
Nidec Copal Corporation
International Classes:
G03B7/18; G03B9/14; G03B9/10; G03B9/24; G03B11/00; G03B17/12; H04N5/225
Domestic Patent References:
| JP3152519A | ||||
| JP10186445A | ||||
| JP8179397A | ||||
| JP4083113A | ||||
| JP8248472A |