Title:
DIAPHRAGM MECHANISM FOR CAMERA AND CAMERA
Document Type and Number:
Japanese Patent JP2017078789
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a diaphragm mechanism for a camera capable of effectively preventing falling of a diagram blade simply and at low cost.SOLUTION: A diaphragm mechanism for a camera includes: a bottom board having an opening part formed with an optical axis as a center, and a plurality of main shafts extending in a first direction; a driving ring capable of relatively rotating to the bottom board with the optical axis as a center, and having a plurality of driven shafts extending in a second direction; and a plurality of diaphragm blades each having a main shaft hole and a driven shaft hole, wherein the main shaft is inserted into the main shaft hole and the driven shaft is inserted into the driven shaft hole. On at least one of an end part of the main shaft and an end part of the driven shaft, formed is a hook part of which at least a part of a width is made wider than the main shaft hole or the driven shaft hole.SELECTED DRAWING: Figure 1
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Inventors:
SAWANOBORI KOJI
Application Number:
JP2015206956A
Publication Date:
April 27, 2017
Filing Date:
October 21, 2015
Export Citation:
Assignee:
NIDEC COPAL CORP
International Classes:
G03B9/06
Attorney, Agent or Firm:
Takafumi Ishii