Electroluminescent fret grid for stringed instruments

Details Electroluminescent fret grid for stringed instruments Electroluminescent fret grid for stringed instruments

1987-07-02

1989-02-28

Perkey, W. B.

Music

Instruments

Stringed

84485R, G10D 306, G10G 102

Patent

active

048075094

ABSTRACT:
A musical training device for stringed instruments having a neck with a fret board includes a fret support plate that extends over the instrument neck and includes regularly spaced transverse raised frets defining therebetween spaces receptive of the musician's fingers. A matrix of thin lights displayed upon the fret board are contained within the fret board and include electroluminescent flat light displays viewable from a wide angle and under ambient lighting conditions and capable of indicating the actual musical note of each position at each position, each comprising at least in part a phosphor layer and an electrode for applying an electric field across the phosphor layer.

REFERENCES:
patent: 2788699 (1957-04-01), Pipkin
patent: 3403591 (1968-10-01), Weitzner
patent: 3845686 (1974-11-01), Salvo
patent: 3854370 (1974-12-01), Sapinski
patent: 3943815 (1976-03-01), Gilbert
patent: 3978756 (1976-09-01), Feldman
patent: 3978757 (1976-09-01), Johnson, Jr. et al.
patent: 4080867 (1978-03-01), Ratanangsu
patent: 4286495 (1981-09-01), Roof
patent: 4545281 (1985-10-01), Habicht
patent: 4589324 (1986-05-01), Aronstein

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