Resources Contact Us Home
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
Peptide vectors
Methods and apparatus for low power out-of-band communications
Piezoelectric ultrasonic transducer apparatus
Commissioning incoming packet switched connections
Process for preparation of Efavirenz
Motion estimation for a video transcoder
Optical input device
  Randomly Featured Patents
Zeolite SSZ-42
Lid mechanism, for recording-medium insertion opening, having lid deformation control construction
Method for processing sampled data signals
Drilling tool with alternating cutting plates and alternating cutting plates for said drilling tool
Computer docking system with means for allowing a microprocessor in a docking station to talk to a central processing unit in a docked portable computer
Substituted biaryl amides C5a receptor modulators
Treatment of heart diseases
Magnetron coaxial adaptor having a cap which fits over the magnetron output antenna
Therapeutic method for inhibiting gastric secretion by administration of 15-deoxy-16-hydroxy prostaglandins