Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1989-05-17
1991-08-27
Oberley, Alvin E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340703, 313502, G09G 330
Patent
active
050437151
ABSTRACT:
A thin film electroluminescent edge emitter structure includes a common electrode layer and control electrodes disposed above the common electrode layer. At least one dielectric layer is disposed between the common electrode layer and control electrodes, and a phosphor layer is interposed between the one dielectric layer and common electrode layer. The common electrode layer, one dielectric layer and the phosphor layer define the light-emitting pixels of the emitter structure. Each pixel has a light-emitting face formed thereon and is operable upon application of electrical excitation to cause the radiation of light energy within its phosphor layer at least in a direction towards the pixel light-emitting face. An optical lens system associated with the pixels includes a preselected contour shaped on the light-emitting face of each pixel to define an optical lens integral therewith to project the light energy passed therethrough in a preselected direction and form a beam of light energy having a preselected beam pattern. A multi-color light emission system employed by the pixels includes a plurality of phosphor zones composing the phosphor layer and capable of projecting different light energy through the light-emitting faces of the pixels. Also, separate edge emitter structures projecting different colors of light can be utilized in a electrophotographic printer.
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Michelitsch, "Light-Emitting, Gallium Arsenide Diode," IBM Technical Disclosure Bulletin, vol. 8, No. 1, Jun. 1965, p. 191.
Asars Juris A.
Kun Zoltan K.
Leksell David
Mazelsky Robert
Oberley Alvin E.
Westinghouse Electric Corp.
Williamson John K.
Wu Xiao Min
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