Infrared emitting EL lamp
AssigneeDurel Corporation
InventorsCharles I. Zovko, Alan C. Thomas
Life of this patent
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Abstract
At least one layer of cascading material overlying an EL lamp converts the light emitted by the EL lamp into infrared light. The EL lamp is supported within in a container transparent to at least infrared light, along with at least one battery and an inverter to provide power for the lamp in portable applications. The lamp is rolled to form a cylinder and fits within the inside diameter of the container. The lamp can be turned on or off by means of a switch interrupting current from a battery or to the lamp.
Claims12
A light source producing substantially infrared light, said light source comprising;
- an EL lamp producing light visible to the unaided human eye;
- a first layer of cascading dye overlying said EL lamp for absorbing said light and emitting light at a wavelength longer than 750 nanometers.
A portable infrared light source comprising:
- an EL lamp for producing light visible to the average unaided human eye;
- a first layer of cascading dye overlying said EL lamp for absorbing said light and emitting light at a wavelength longer than 750 nanometers;
- a source of direct current;
- in inverter coupled to said source and to said lamp for converting said direct current into alternating current.
Dependencies are inferred from the claim text.