Title:
IMAGING APPARATUS AND IMAGING METHOD
Document Type and Number:
Japanese Patent JP2015089033
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To quickly and accurately detect object luminance during photometry by enlarging a dynamic range.SOLUTION: When starting a photometry process with a camera, a process of reading an image signal having an addition number of 1:19 is performed and object luminance is calculated. After obtaining an exposure dose difference ΔEv and adjusting exposure time of an AE sensor, a process of reading an image signal of 1:1 having no pixel addition is performed. On the basis of object luminance obtained at this time, an exposure value with respect to an image sensor is calculated.
Inventors:
KAZAMA YASUHIRO
Application Number:
JP2013227463A
Publication Date:
May 07, 2015
Filing Date:
October 31, 2013
Export Citation:
Assignee:
RICOH IMAGING CO LTD
International Classes:
H04N5/347; G03B7/091; G03B7/0997; H01L27/146; H04N5/238; H04N5/355
Domestic Patent References:
| JP2012145862A | 2012-08-02 | |||
| JP2012222469A | 2012-11-12 | |||
| JP2012253462A | 2012-12-20 | |||
| JP2012145862A | 2012-08-02 | |||
| JP2012222469A | 2012-11-12 | |||
| JP2012253462A | 2012-12-20 |
Attorney, Agent or Firm:
Takashi Matsuura
Hiroki Ogura
Takuya Fuji
Hiroki Ogura
Takuya Fuji
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