Lens position detector of camera
专利汇可以提供Lens position detector of camera专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent the stop of a zoom lens in a stop inhibition area thereof by executing the end point detection of the stop inhibition area at the point where brushes change from the nonconducting part of a code plate to the conducting part.
CONSTITUTION: The code plate is stuck to the peripheral surface of a cam cylinder for driving a lens and the brushes ZC0, ZC1, ZC2, GND which come into sliding contact with the code plate are provided on the body side. The part between a lock position and a zoom area and the part between the zoom area and a macro position are defined as the stop inhibition areas. The code plate and software are so constituted as to use the change of prescribed terminals from off to on at the time of detecting the boundary of these areas. The detection that the terminals are on in the region where the terminals are ought to be off is obviated in this way and, therefore, the stop in the stop inhibition position is averted even if there is a contact defect between the brushes and the code plate.
COPYRIGHT: (C)1990,JPO&Japio，下面是Lens position detector of camera专利的具体信息内容。
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