发明名称 |
SEQUENTIAL CROSS-FADING COLOR FILTERS AND SYSTEM |
摘要 |
A color filter plate includes a continuously-variable dichroic filter coating constituting a variable band-pass or variable band-reject filter having a spatially-modulated variable-density pattern formed in the coating, and provides continuously-variable hue and saturation characteristics along separate gradient axes. A color filter mechanism includes a sequential arrangement of rectangular or circular color filters, having continuously-variable band-pass or band-reject filter coatings, mounted in motorized carriages. One mechanism provides two-axis translation of the rectangular color filters while another mechanism provides translation and rotation of the circular color filters. A light projection system comprising a lamp with a reflector and a lens includes a color filter mechanism having sequential, continuously-variable band-pass and band-reject filters supported by motorized carriages mounted in a region where the beam diameter is small. |
申请公布号 |
EP0993580(A1) |
申请公布日期 |
2000.04.19 |
申请号 |
EP19990914107 |
申请日期 |
1999.03.23 |
申请人 |
VARI-LITE, INC.(A DELAWARE CORPORATION) |
发明人 |
BORNHORST, JAMES, M.;HUTTON, RICHARD, W. |
分类号 |
F21S8/00;F21S10/00;F21V9/08;F21V9/10;F21W131/406;F21Y101/00;G02B5/20;G02B5/28;G02B7/00;H04N9/31 |
主分类号 |
F21S8/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|