Light-responsive musical instrument

Details Light-responsive musical instrument Light-responsive musical instrument

1984-03-22

1985-12-10

Franklin, Lawrence R.

Music

Instruments

Wind

446 14, 446213, 446216, G10D 1700

Patent

active

045571759

ABSTRACT:
A musical instrument that produces whistle-type tones responsive to the impingement of sunlight or other source of electromagnetic radiation upon one or more radiation-absorbent porous-to-air, generally disc-shaped generator member or members disposed interiorly and in the lower half of a vertically oriented transparent or partially transparent tube with angled open ends. The generator member or members may be in the form of a wire mesh or gauze. In a preferred embodiment, Fresnel lenses are employed to focus sunlight on the generators contained within a plurality of tubes of differing lengths that are grouped together to form a musical instrument suitable for display in public places for the entertainment and scientific edification of the public.

REFERENCES:
patent: 164458 (1875-06-01), Kastner
patent: 500433 (1893-06-01), Schubert
Frank S. Crawford, "Singing Corrugated Pipes", Apr. 1974, vol. 42, AJP (American Journal of Physics) (?) p. 279.

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