发明名称 IMAGING DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide an imaging device whose AF accuracy is improved. <P>SOLUTION: An imaging device 1 of the present invention comprises a diaphragm 24 for adjusting the amount of subject light which passes through an imaging optical system 20 including a focus lens 23 by changing an aperture value, multiple focus detection parts 210 to 221 provided on an expected imaging surface 101 of the subject light, including multiple pairs of photoelectric conversion elements each of which is composed of a pair of photoelectric conversion elements 122, 123, and capable of detecting a focus state of the subject light at a position where each of the focus detection parts is provided, a selection part 11, 16 for selecting a specific focus detection part 210 to 221 among the focus detection parts 210 to 221, and a focus control part 11, 25 which performs drive control of the focus lens 23 such that the subject light is focused on the position where the selected focus detection part 210 to 221 is provided based on the focus state detected by the selected focus detection part 210 to 221, and a diaphragm control part 11 for setting an upper limit of the aperture value in accordance with a location of the selected focus detection part 210 to 221 on the expected imaging surface 101. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012133152(A) 申请公布日期 2012.07.12
申请号 JP20100285395 申请日期 2010.12.22
申请人 NIKON CORP 发明人 KURIHARA KATSUMASA
分类号 G02B7/28;G02B7/34;G03B13/36;H04N5/232 主分类号 G02B7/28
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