Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Solenoidal electric field lamp with reduced electromagnetic interference










Image Number 7 for United States Patent #4187445.

A solenoidal electric field lamp comprises a plurality of toroidal ferrite cores connected to a radio frequency energy source and disposed in an ionizable gas. The cores are so connected and oriented that circulating discharge currents passing through each core produce magnetic dipole fields which tend to cancel one another. Near and far field electromagnetic interference is thus reduced even when the lamp is operated at higher, more efficient frequencies. The cores are disposed in a variety of configurations.








 
 
  Recently Added Patents
Duty cycle adjustment of remote illumination source to maintain illumination output
Implementing state-of-the-art gate transistor, sidewall profile/angle control by tuning gate etch process recipe parameters
X-ray imaging
Embedded package and method for manufacturing the same
Anti-FGFR3 antibodies and methods using same
Push-up bar
Method and apparatus for the prevention of a service degradation attack
  Randomly Featured Patents
Induction logging system featuring variable frequency corrections for propagated geometrical factors
Ribbon severing support
Preparation of a matrix layer for spectrometry
Composite pressure tank and process for its manufacture
Image handling and display in x-ray mammography and tomosynthesis
Drying agent
Maintenance assessment management
External apparatus for monitoring a communication system
Turn table having a clamping plate with a locking protrusion
Rotary stage for imaging a specimen