发明名称 Rotatable electronic flash device with automatic light sensor tracking
摘要 An electronic flash device for associated camera attachment, in which the flash device is rotatable about an axis generally perpendicular to the normally horizontal viewing plane of the camera lens. The light sensor of the flash device is automatically positioned by the rotational movement of the flash device, for maintaining the sensor's line of sight, parallel with the camera lens' view direction.
申请公布号 US4238150(A) 申请公布日期 1980.12.09
申请号 US19790000998 申请日期 1979.01.04
申请人 ROLLEI OF AMERICA INC 发明人 QUINN, PETER T
分类号 G03B15/05;(IPC1-7):G03B15/05;G03B7/00 主分类号 G03B15/05
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