Title:
焦点調節装置および焦点調節方法
Document Type and Number:
Japanese Patent JP6537288
Kind Code:
B2
Abstract:
A focus adjustment device for carrying out focus adjustment by moving a focus lens, comprises a point light source determination section which determines a point-like light source subject based on the image signals, an orientation stability determination section which determines stability of orientation by detecting orientation of the focus adjustment device, a photometry section which outputs photometric values corresponding to subject brightness based on the image signals, and a focus adjustment section which carries out a focus adjustment operation using the image signals, based on a determination result of the point light source determination section, wherein the point light source determination section, in a state where a point-like light source subject is currently determined, when a determination result of the orientation stability determination section indicates unstable and a photometric value output from the photometry section does not indicate low brightness, determines that the subject is not a point-like light source.
Inventors:
Shingo Miyazawa
Makoto Ikeda
Makoto Ikeda
Application Number:
JP2015021324A
Publication Date:
July 03, 2019
Filing Date:
February 05, 2015
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
G02B7/28; G02B7/36; G03B7/091; G03B7/28; G03B13/36; G03B15/00; H04N5/232
Domestic Patent References:
| JP2013160919A | ||||
| JP2013097082A | ||||
| JP2006319875A | ||||
| JP11136571A | ||||
| JP2013140297A | ||||
| JP2011150281A | ||||
| JP2014123070A | ||||
| JP2006126479A |
Foreign References:
| US20130201386 | ||||
| US20130107107 | ||||
| US9172863 | ||||
| US20140016020 | ||||
| US20140176783 | ||||
| US20110068250 |
Attorney, Agent or Firm:
Kobayashi discretion