发明授权
US4842387A Automatic focusing apparatus for use in video camera and the like 失效
用于摄像机等的自动对焦装置

Automatic focusing apparatus for use in video camera and the like
摘要:
An automatic focusing apparatus for use in a video camera and the like wherein one optical element other than a focusing lens means of an optical system is moved for focusing in the in-focus direction while being vibrated slightly by means of a motor capable of being driven by pulses.
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