Resources Contact Us Home
Phosphor manufacturing process

Image Number 2 for United States Patent #4479521.

In the manufacture of an alkaline earth halophosphate phosphor, a tray is filled from an automatic loader with a predetermined weight of powder comprising a blend of raw ingredients for forming said phosphor. The filled tray is then vibrated with a pattern inserted therein to settle the powder into a powder mass having a shape that promotes uniformity of reaction when the powder is fired at a temperature that causes the raw ingredients to react and form said phosphor.

  Recently Added Patents
Decontamination apparatus and method
Image pickup device with a plurality of pixels and an AD conversion circuit
Transmission device
Navigation device, navigation method, and navigation program
Intrinsic absorber layer for photovoltaic cells
Carbon blacks having low PAH amounts and methods of making same
Single-electron detection method and apparatus for solid-state intensity image sensors with a charge splitting device
  Randomly Featured Patents
Low profile passive infrared sensor
Apparatus for manufacturing sheets
Pennant wristband
Apparatus for stereoscopic photography
Historical data based navigational routing
Power transmission device
Continuous signature stacker machine provided with special device for transversely ejecting the assembled package
Active cable-cutting assembly for aircraft
Low-noise switching power supply having variable reluctance transformer
Device for transporting articles to a conveyor apparatus of a packaging machine