发明名称 |
Colour cross-fading system for a luminaire |
摘要 |
A color cross-fading system for a luminaire includes two filter disks or strips each provided with a multi-layer filter coating to provide a dichroic filter effect. In each case the thickness of the coating layers varies continuous along a gradient axis of the filter disk or strips. One disk acts predominantly as a long wave pass filter and the other act predominantly as a short wave pass filter, but each disk has an essentially "complex" characteristic enabling a very wide range of different colors to be obtained by cumulative subtractive filtering, by varying the positions of the two disks or strips relative to an optical axis.
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申请公布号 |
US5426576(A) |
申请公布日期 |
1995.06.20 |
申请号 |
US19930051373 |
申请日期 |
1993.04.23 |
申请人 |
LIGHT & SOUND DESIGN, LIMITED |
发明人 |
HEWLETT, WILLIAM E. |
分类号 |
F21S8/00;G02B5/28;G02B7/00;G02B26/00;(IPC1-7):F21V9/00 |
主分类号 |
F21S8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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