Solid state sound lamp

Details Solid state sound lamp Solid state sound lamp

1995-06-23

1997-02-04

Pascal, Robert

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

315 33, 352 26, G11B 700

Patent

active

056002068

ABSTRACT:
The present invention is a sound light assembly for reading encoded information on a film utilizing cyan, magenta and yellow color dyes rather than silver emulsion, that may be used with existing projection equipment. The invention comprises at least one narrow spectrum LED array of a plurality of LED die that produce high intensity illumination with very little infrared energy, a current regulating device, compensation resistors for correcting any variations between the individual LED die intensity and an immersion lens for redirecting the wide LED output pattern into a small cone of light. Each LED array has a peak energy that coincides with the maximum density of a corresponding color dye layer.

REFERENCES:
patent: 4085296 (1978-04-01), Keegan
patent: 4139382 (1979-02-01), Stephens
patent: 4367930 (1983-01-01), Kolb

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