发明名称 |
Drive unit for the adjustment of a zoom, focus or iris diaphragm for camera lenses |
摘要 |
The invention relates to a drive unit for the adjustment of the zoom, focus or iris ring of a camera lens. According to the invention, the drive unit comprises a drive shaft arranged parallel to the axis of the camera lens, a pin and groove arrangement for allowing axial displacement of the drive shaft, a pinion connected to the drive shaft and coupled to the external teeth of a lens ring of the camera lens, and two circular flanges connected to the drive shaft and for embracing a sector of the lens ring to pull along the drive shaft and the pinion as the lens ring moves axially. The invention creates a drive unit which allows adjustment of a lens ring even if the lens ring is displaced axially.
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申请公布号 |
US5508852(A) |
申请公布日期 |
1996.04.16 |
申请号 |
US19940317292 |
申请日期 |
1994.10.03 |
申请人 |
ARNOLD & RICHTER CINE TECHNIK GMBH & CO. |
发明人 |
BEDNARSKY, KURT;FILOUS, PAVEL;BAYERL, EUGEN;HERZOG, KARL |
分类号 |
G02B7/08;G03B17/14;(IPC1-7):G02B7/02;G02B15/14 |
主分类号 |
G02B7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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