发明名称 Camera with electromagnetically driven lens barrel
摘要 In a camera which is provided with an electromagnetically driven lens barrel and is arranged to control a shutter by driving a rotor with an electromagnetic force generated by energizing a coil printed on the rotor, power supply to the coil is effected in a pulse-like manner for drawing out a photo-taking lens and in a continuous manner for driving the shutter.
申请公布号 US4671639(A) 申请公布日期 1987.06.09
申请号 US19860857524 申请日期 1986.04.23
申请人 CANON KABUSHIKI KAISHA 发明人 KODAIRA, TAKANORI;EGAWA, AKIRA;NAMAI, AKIHIRO
分类号 G02B7/08;G03B9/08;(IPC1-7):G03B3/10 主分类号 G02B7/08
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