Resources Contact Us Home
Lighting device for a high-pressure discharge lamp and lighting equipment employing same

Image Number 7 for United States Patent #7759878.

A lighting device for lighting a high-pressure discharge lamp 2 having an outer tube, an interior of which is substantially under vacuum. The lighting device includes a ballast 3 having at least a current limiting element and a high-voltage pulse generating circuit 4 for generating a high-voltage pulse, and also includes a lighting discriminating means 8 for discriminating between lighting and non-lighting of the discharge lamp 2, a timer circuit 9 for setting a predetermined period of time, and a pulse-stop control means 10 for stopping generation of the high-voltage pulse. When the lighting discriminating means 8 discriminates non-lighting after lighting has been discriminated, generation of the high-voltage pulse is stopped within the predetermined period of time set by the timer circuit 9.

  Recently Added Patents
Method for selective deposition of a semiconductor material
Matching geometry generation and display of mammograms and tomosynthesis images
Inflatable workshop
Under bump passive components in wafer level packaging
System and method for providing restrictions on the location of peer subnet manager (SM) instances in an infiniband (IB) network
Video-recording reservation management apparatus, method, program, and system
Circuits for prevention of reverse leakage in charge pumps
  Randomly Featured Patents
Vehicle floor mats having integral hook retention
Disposable low-melt thermoplastic mask incorporating an integral locking mechanism for attachment to patient restraint boards
Integrated starter and regulator for fluorescent tubes
Foot scrubber device
Analyzing device for circuit device, circuit device analyzing method, analyzing program, and electronic medium
Method and apparatus for timing events within an implantable medical device
Cartridge handling device for microfilm reader or the like
Method, apparatus and system for measuring the transparency of film
Protein kinase C modulators. K.
Aircraft software part library