Optical metronome

Details Optical metronome Optical metronome

1975-03-13

1976-03-23

Franklin, Lawrence R.

Music

Accessories

Teaching devices

G04F 502, G10G 100

Patent

active

039452921

ABSTRACT:
An optical metronome with a transparent continuous belt carrying vertical markings carried between rollers, supported between rigid transparent plates, and passing behind a translucent sheet of music through which the vertical markings are viewed. The lighting behind the belt is from horizontally extending tube type lamps and reflectors, or flat faced neon lamps which form one of said rigid transparent supporting plates with their flat faces.

REFERENCES:
patent: 1837944 (1931-12-01), Blum
patent: 2915121 (1959-12-01), Bloom
patent: 3743758 (1973-07-01), DEL Castello
patent: 3803971 (1974-04-01), Del Castillo

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