Optically active color filter

An optically active color filter for controlling the color of light produced by a light source. The color filter includes an optically active device positioned between a linear polarizer and an adjustable position linear polarizer whose orientation can be controlled mechanically or electrically. In...

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Bibliographic Details
Main Authors Bievenour, Torrey M, Lieberman, Lawrence
Format Patent
LanguageEnglish
Published 30.01.2007
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Summary:An optically active color filter for controlling the color of light produced by a light source. The color filter includes an optically active device positioned between a linear polarizer and an adjustable position linear polarizer whose orientation can be controlled mechanically or electrically. In a preferred embodiment, the optically active device contains a liquid optically active substance such as high maltose corn syrup. The optically active color filter may be used for controlling the color of a light source such as a stage light or spotlight and in other applications requiring a device for controlling the color of a light source.