发明名称 ROTATING OPERATION UNIT AND ELECTRONIC EQUIPMENT
摘要 PROBLEM TO BE SOLVED: To solve the following problem: it is difficult to magnetize a compact ring magnet in the circumferential direction thereof at the same intensity and an equal interval while there is a rotating operation member providing click feeling by a magnetic attraction force of a magnet.SOLUTION: A rotating operation unit includes: a first yoke having a plurality of first teeth formed in the circumferential direction thereof and rotating; a second yoke having a plurality of second teeth formed in the circumferential direction thereof and fixed such that the second teeth face the first teeth of the first yoke; a magnet arranged between the first yoke and the second yoke, wherein a magnet surface facing the first yoke and a magnet surface facing the second yoke are magnetized to a magnetic pole different with each other; a first magnetic sensor detecting a change of a magnetic flux generated by the rotation of the first yoke; and a second magnetic sensor detecting the change of the magnetic flux generated by the rotation of the first yoke, in a phase different from that of the first magnetic sensor.
申请公布号 JP2011204665(A) 申请公布日期 2011.10.13
申请号 JP20100230726 申请日期 2010.10.13
申请人 CANON INC 发明人 NODA HIROSHI
分类号 H01H19/11;H01H19/20 主分类号 H01H19/11
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