发明名称 LIGHTING DEVICE FOR PHOTOGRAPHY
摘要 PROBLEM TO BE SOLVED: To efficiently light a visual field of photography by improving irradiation unevenness by using a white LED which has a relatively narrow angle of irradiation. SOLUTION: The lighting device 3 for photography has six white LEDs 3A to 3F arrayed closely to one another. The white LEDs 3A to 3F have an angle of irradiation narrower than the field angle of a photographic lens system 1. The white LEDs 3A and 3D, white LEDs 3B and 3E, and white LEDs 3C and 3F which are vertically arrayed are arrayed toward a subject while having spread angles in the upward-downward direction and the while LEDs 23A to 3C and white LEDs 3D to 3F which are arrayed in the right-left direction are arrayed toward the subject while having spread angle in the right-left direction.
申请公布号 JP2002148686(A) 申请公布日期 2002.05.22
申请号 JP20000345984 申请日期 2000.11.13
申请人 RICOH CO LTD 发明人 IGUCHI SUSUMU
分类号 G03B7/28;G02B7/28;G03B9/02;G03B9/64;G03B13/36;G03B15/03;G03B17/18;H04N5/238;(IPC1-7):G03B15/03 主分类号 G03B7/28
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