Square wave light generator

Details Square wave light generator Square wave light generator

1975-09-25

1976-11-09

Corbin, John K.

G05D 2500

Patent

active

039907872

ABSTRACT:
Light rays are provided in square wave form at uniform intervals. A source f light is provided within three cylinders. The first cylinder being stationary has an aperture extending 120.degree.. The second and third cylinders each have apertures extending 240.degree., and the cylinders rotate in opposite directions. In operation the device gives equal light and dark periods with a rise and fall time one-half the period of the full open and full close time. The length of the periods are dependent on the rotational velocity of the cylinders.

REFERENCES:
patent: 2687337 (1954-08-01), Alford
patent: 2761959 (1956-09-01), Kunins
patent: 2878710 (1959-03-01), Willey
patent: 3574445 (1971-04-01), Harmon
patent: 3709600 (1973-01-01), Ganshorn
patent: 3778620 (1973-12-01), Lindemann et al.

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