Title:
レンズ装置、および、撮像装置
Document Type and Number:
Japanese Patent JP6815742
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a diaphragm control device capable of improving continuous shooting speed.SOLUTION: A diaphragm control device for controlling a diaphragm mechanism (23) changing light amount, has driving means (26) for driving a diaphragm mechanism, and controlling means (20) for controlling the driving means. The driving means continuously carries out initial energization for performing the initial positioning of the diaphragm mechanism, driving energization for driving the diaphragm mechanism, and a direct-current energization after the driving of the diaphragm mechanism, thereby driving the diaphragm mechanism. The controlling means changes the energization time of direct-current energization according to continuous shooting speed information, and controls the driving means so as to start second driving by carrying out the driving energization without carrying out the initial energization, when an instruction of the second driving following first driving while the driving means carries out the direct-current energization in the first driving of the diaphragm mechanism.SELECTED DRAWING: Figure 2
Inventors:
Takahito Nakamichi
Application Number:
JP2016081797A
Publication Date:
January 20, 2021
Filing Date:
April 15, 2016
Export Citation:
Assignee:
Canon Inc
International Classes:
G03B7/095; G03B9/02; H04N5/238
Domestic Patent References:
| JP2014215574A | ||||
| JP2008076704A | ||||
| JP2011077643A | ||||
| JP2001215552A | ||||
| JP2010044315A |
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Hirayama Tomoya
Atsushi Mizumoto
Hirayama Tomoya