Translucent fluorescent filter for display panels

Details Translucent fluorescent filter for display panels Translucent fluorescent filter for display panels

1994-07-05

1996-04-02

Gromada, Denise L.

Illumination

Illuminated scale or dial

Internal light source

362 84, 362260, 362293, 34081547, 34081556, 34081575, 34081576, G01D 1128

Patent

active

055046614

ABSTRACT:
In a display apparatus using projected illumination for display elements, a translucent fluorescent filter is disposed between the light source and the display element. The filter modifies the visible spectrum of light illuminating the display element. A single light source can be used to achieve a color that is not present or is very low in the original source without added complexity in a control panel. Acceptable luminance levels are achieved in multi-colored control panels with a single light source.

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