Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
LED curing light










Image Number 7 for United States Patent #6991356.

A light source which may be used as part of a dental curing lamp is comprised of at least one, and preferably a plurality, of LEDs. To increase the efficiency of the light output the LEDs are encapsulated in a beam converger including an extractor portion and a collimator portion. Light rays leaving the collimator portion have an angle which matches the entrance angle input requirements of an associated light guide. In another aspect, cooling of LEDs is accomplished by reservoirs located in a hand piece and in a base station. In another aspect of the invention, cooling is achieved by use of a heat pipe and a cooling jacket. The cooling jacket may contain a material having a high latent heat of fusion at a phase change temperature suitable for cooling the LEDs.








 
 
  Recently Added Patents
Imaging lens
Positioning vehicles to improve quality of observations at intersections
Variety corn line LIC7382
Linear jet ionizer
Termite tubing preventative for non-wood materials
Toy
Personal alarm device for headwear for proximity detection
  Randomly Featured Patents
Lip balm with spherical surface and method for producing
Method for canceling impact of physical property variability on image quality performance of digital imaging system
Method and apparatus for generating random weighted musical choices
Image forming apparatus having an image conversion table for correcting a property of the apparatus
Valve for a pressure container
Oral 1.alpha.-hydroxyprevitamin D in composition and method for treating psoriasis
Pressure fluid powered machine tool
Compounds useful for the treatment of diseases
Information converting system
Multiple stage airbag gas generator