发明名称 SHAKE CORRECTING DEVICE AND LENS BARREL
摘要 PROBLEM TO BE SOLVED: To provide a shake correcting device and a lens barrel capable of accurately correcting shake by automatically adjusting position detecting accuracy. SOLUTION: A straight advancing barrel 65 moves in an optical axis I direction integrally with an LED 51 and a zoom optical system 64. When the optical system 84 is on a TELE end and a focal distance is long, a distance between the LED 51 and a PSD 54 becomes long. When the shake correcting amount on an image surface is the same, the driving amount of a shake correcting lens 10 becomes small in the case of the long focal distance. Thus, the lens 10 is required to be more accurately controlled and driven and also the position of the lens 10 is required to be higher accurately detected than in the case of a short focal distance. When the distance between the LED 51 and the PSD 54 becomes long, an error between the actual position of a slit hole 52a and the position of a slit hole 52a detected by the PSD 54 becomes small. As a result, the position detecting accuracy of the lens 10 is improved.
申请公布号 JPH11202377(A) 申请公布日期 1999.07.30
申请号 JP19980004423 申请日期 1998.01.13
申请人 NIKON CORP 发明人 ONO YOSHIKO
分类号 G03B5/00;(IPC1-7):G03B5/00 主分类号 G03B5/00
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