Automatic clutch mechanism of camera
专利汇可以提供Automatic clutch mechanism of camera专利检索，专利查询，专利分析的服务。并且PURPOSE:To perform macro photography while moving respective lens elements of a one-ring zoom lens forward at the same time by entering the respective lens elements into a helicoid part which does not slant through the pressing operation of an operation ring on a short-focus side. CONSTITUTION:A fixed barrel 1, a cam barrel 16 fitted in a cam 17 with the fixed barrel and a pin 2, a focus ring 26 which has the pin 31 of the 1st group lens fitted in a groove 25, and a zoom operating mechanism consisting of an operating barrel 27 are provided outside of a moving barrel 7 which holds the 4th group lens. When the operation barrel is rotated, only the 1st group lens moves forth or back by a helicoid to achieve focusing operation, and when the operation barrel is moved forth or back, the cam barrel rotates and moves forth or back through the moving barrel, thereby performing zooming operation. When the operation barrel is further pressed in from a wide side to rotate clockwise, the cam barrel is capable of moving forth and back freely through a groove 17, but respective lens groups more in one body, so that macro operation is facilitated.，下面是Automatic clutch mechanism of camera专利的具体信息内容。
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