| 摘要 |
PURPOSE:To decrease the number of components, to shorten a manufacture time, and to reduce the cost by uniting a click mechanism and a switch mechanism for macro detection. CONSTITUTION:When a zoom ring 1 is rotated from the changeover position of a zoom photographic range to the changeover position of a macrophotographic range, the tip part 23 of a leaf spring 21 abuts on the step part 33 of the inner peripheral surface of the zoom lens 1. When the zoom photographic range is switched to the macrophotographic range, the leaf spring 21 is deformed elastically by the inner peripheral surface of the zoom ring, so the rotary load on the zoom ring increases and a clock mechanism is realized. Further, the leaf spring 21 deforms elastically to bring a contact 34 provided to the leaf spring 21 into contact with the other leaf spring 35, so a switch for macro detection is realized. Thus, the click mechanism and switch for macro detection are united, so the number of components is decreased and the manufacture time is shortened.
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