Invention Grant
- Patent Title: Illumination device capable of having optical accessory attached forward of light emission section thereof, image pickup system, film holder, light emission control device, and light emission control method
- Patent Title (中): 能将光学附件安装在其发光部分前方的照明装置，摄像系统，胶片保持器，发光控制装置和发光控制方法
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Application No.: US13734002Application Date: 2013-01-04
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Publication No.: US09049361B2Publication Date: 2015-06-02
- Inventor: Ginta Hirasawa , Toshiki Miyakawa
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2012-001331 20120106; JP2012-028828 20120213; JP2012-043460 20120229; JP2012-043461 20120229
- Main IPC: G03B15/05
- IPC: G03B15/05 ; H04N5/222 ; H04N9/73 ; H04N5/225 ; G02B7/00 ; H04N5/235 ; G03B7/16
Abstract:
Light emission control makes it possible to determine an appropriate main light emission amount even when an optical accessory that changes color characteristics of transmitted light is attached forward of a light emission section of an illumination device. A strobe capable of having a color filter attached thereto, which changes color characteristics of transmitted light. The strobe includes a strobe microcomputer that acquires information on characteristics of the color filter attached forward of the light emission section, and transmits the acquired information on the characteristics to an image pickup apparatus on which the strobe is mounted.
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