Resources Contact Us Home
Wide illumination range photoluminescent lamp

Image Number 4 for United States Patent #6127780.

A flat photoluminescent lamp has external walls and a plurality of internal walls designed to form a serpentine channel having first and second ends. First and second electrodes, positioned in proximity with the first and second ends of the serpentine channel generate a plasma discharge therebetween in response to the application of power to the electrodes. A heater element, comprising a thick film cermet material is disposed on the bottom external surface of the lamp. The heater element is serpentine in shape and substantially follows the path of the serpentine channel. Disposed on opposite sides of the heater element are serpentine conductors, also comprising a thick film cermet material. A DC voltage is applied to the heater element to maintain the internal temperature of the lamp at a desired temperature value. A temperature sensing element may also be used to control the power applied to the heater element. For operation in a low intensity mode, an AC signal is applied to the serpentine conductors causing the generation of an electric field within the interior portion of the lamp throughout the serpentine channel. A low level electric discharge field within a serpentine channel results in the generation of visible light at low intensity levels.

  Recently Added Patents
Switching power supply apparatus with overcurrent limiting and prolonged holding time
System and method for evaluating equipment rack cooling performance
Method of operating an electromechanical converter, a controller and a computer program product
Magnetic resonance imaging apparatus
Eye therapy system
Scoring users of network based users
  Randomly Featured Patents
Golf ball compositions comprising metallized lipid-based nanotubules
Roll-on encapsulation method for semiconductor packages
Production of alkyl esters of saturated aliphatic carboxylic acids
Surface finishing pad
Nucleic acid probes useful for detecting microorganisms associated with vaginal infections
Therapeutic system for administering drugs to the skin
Angle of rotation sensor having a counting arrangement with at least two pulser-wire motion sensors providing electrical energy used as a voltage supply
Fingerprint verification method
Roof vent