发明名称 Television lens apparatus adapted for a virtual studio
摘要 <p>The present invention is intended to provide a photographing system that can transmit a signal indicating a motion of each mechanism of zooming, iris, focusing, etc. of a television lens, as an accurate signal without a time lag, to a system computer. For accomplishing the above object, the present invention provides the photographing system having a command signal series transmitter which transmits a command signal from a command device to a driver of the television lens, and a detection signal series transmitter which transmits a detection signal from a detector which detects an action of the driving mechanism of the television lens, to the system computer in the form of a digital signal. &lt;IMAGE&gt;</p>
申请公布号 EP0989747(A2) 申请公布日期 2000.03.29
申请号 EP19990307568 申请日期 1999.09.24
申请人 CANON KABUSHIKI KAISHA 发明人 SENDA, AKIRA
分类号 H04N5/232;G02B7/08;H04N5/222;H04N5/272;(IPC1-7):H04N5/232 主分类号 H04N5/232
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