发明名称 Multiple Focus Point Light
摘要 A lamp unit with a relay lens that allows two different focus points. Two different optical altering elements are hence simultaneously in focus. The elements can be taken in and out of focus to allow different effects.
申请公布号 US2007217204(A1) 申请公布日期 2007.09.20
申请号 US20070687579 申请日期 2007.03.16
申请人 HOUGH THOMAS A;BORNHORST JAMES 发明人 HOUGH THOMAS A.;BORNHORST JAMES
分类号 F21V7/00 主分类号 F21V7/00
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