Abstract

An electronic generator is described which can produce single and several additional light flashes with intensity, light-dark ratio, and frequency as independent variables. The duration of the light as well as the dark periods can be adjusted, before starting, manually or automatically (patented) by varying the charging current of the condenser in the corresponding circuit; that is, the frequency is variable automatically. The additional light flashes can be superimposed during the preceding one, or during the dark interval, or during part of both of them.

© 1958 Optical Society of America

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