Electroluminescent light sources

HELECTRICITY H05Electric techniques H05BELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR

H05B33/00Electroluminescent light sources

H05B33/02Details H05B33/04Sealing arrangements H05B33/06Electrode terminals H05B33/08Circuit arrangements not adapted to a particular application H05B33/0803for light emitting diodes (LEDs) comprising only inorganic semi-conductor materials H05B33/0806Structural details of the circuit H05B33/0809in the conversion stage H05B33/0812with a controlled linear regulator H05B33/0815with a controlled switching regulator H05B33/0818wherein HF AC or pulses are generated in the final stage H05B33/0821in the load stage H05B33/0824with an active control inside the LED load configuration H05B33/0827organized essentially in parallel configuration H05B33/083organized essentially in string configuration with shunting switches H05B33/0833with control of the intensity of light emitted by the LEDs H05B33/0836by means of a linear regulator H05B33/0839by means of a switching converter H05B33/0842with control H05B33/0845of the light intensity H05B33/0848involving load characteristic sensing means H05B33/0851with permanent feedback from the light source H05B33/0854involving load external environment sensing means H05B33/0857of the color point of the light H05B33/086involving set point control means H05B33/0863by user interfaces H05B33/0866involving load characteristic sensing means H05B33/0869optical sensing means H05B33/0872involving load external environment sensing means H05B33/0875with detection of abnormal operating conditions H05B33/0878of the circuit arrangement H05B33/0881of the LEDs H05B33/0884with monitoring or protection H05B33/0887of the conversion stage H05B33/089of the load stage H05B33/0893involving end of life detection of LEDs H05B33/0896for light emitting diodes (LEDs) comprising organic materials H05B33/10Apparatus or processes specially adapted to the manufacture of electroluminescent light sources H05B33/12Light sources with substantially two-dimensional radiating surfaces H05B33/14characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source H05B33/145Arrangements of the electroluminescent material H05B33/18characterised by the nature or concentration of the activator H05B33/20characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded H05B33/22characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers H05B33/24of metallic reflective layers H05B33/26characterised by the composition or arrangement of the conductive material used as an electrode H05B33/28of translucent electrodes