Apparatus for optical indication of values

Details Apparatus for optical indication of values Apparatus for optical indication of values

1980-03-25

1981-12-22

Pitts, Harold I.

Communications: electrical

Audible indication

Percussion-type sound producer

340318, G08B 538

Patent

active

043073840

ABSTRACT:
A periodically energized luminous element mounted on a body undergoing cyclic movement at a high speed producing periodic illumination at a frequency exceeding the fusion frequency of the human eye. The interval duration of said periodic illumination results in perception thereof as a permanent visual display disposed at a fixed location along the travel path of the body corresponding to a physical value to be represented.

REFERENCES:
patent: 737359 (1903-08-01), Currah
patent: 2939105 (1960-05-01), Fryklund
patent: 3346299 (1967-10-01), Meyer

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