Discrete function advisory illumination

Details Discrete function advisory illumination Discrete function advisory illumination

1975-12-18

1977-03-15

O'Connor, Edna M.

Buckles, buttons, clasps, etc.

240 816, 40130R, G01D 1128, G09F 1304

Patent

active

040126323

ABSTRACT:
Transparent or translucent indicia associated with controls mounted on a panel are constantly backlighted with light of a first color and are selectively illuminated with light of second color to accentuate the state of the controls. The second color light will usually be of greater intensity than the first color light and will "swamp out" the first color backlighting.

REFERENCES:
patent: 2566026 (1951-08-01), Hughes, Jr.
patent: 2602036 (1952-07-01), Sullivan
patent: 2637802 (1953-05-01), Roper et al.
patent: 2663107 (1953-12-01), Moler et al.
patent: 2827557 (1958-03-01), Neugass
patent: 2837628 (1958-06-01), Lamb et al.
patent: 3267598 (1966-08-01), Olesen et al.

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