Accession Number : ADD000149
Title : Intensity Control for Light-Emitting Diode Display.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Delay,Dennis G
Report Date : 22 Jan 1974
Pagination or Media Count : 9
Abstract : The patent relates to a plurality of light-emitting diode elements which are unmatched in light output at the lower portions of their forward current ranges and which form an integrated illuminated visual display. They are activated by a power supply arrangement which applies to each diode element a series of independent power pulses of sufficient power to activate each diode element to saturation and into light-emitting condition in a frequency range which appears to the human eye to be steady illumination.
Descriptors : *Display systems, *Light emitting diodes, *Patents, Intensity, Control
Subject Categories : Electrooptical and Optoelectronic Devices
Distribution Statement : APPROVED FOR PUBLIC RELEASE