Resources Contact Us Home
High brightness illumination device with incoherent solid state light source

Image Number 3 for United States Patent #7740375.

An illumination light source includes an incoherent solid state light source adapted to emit light over at least one light emission surface and having a total light emission surface area S.sub.0; a light circulation device including at least one light receiving surface adapted to receive the light from the incoherent solid state light source, and a light extraction area having a first surface area S.sub.1; and a light extraction device for extracting the light from the light circulation device at the light extraction area, wherein S.sub.1<S.sub.0. Accordingly, the apparent brightness of the light is increased by distributing it over a smaller area.

  Recently Added Patents
Nutritional supplement method
Method and device for detecting the dysfunction of a gas pressure sensor in a vehicle tire
Compounds and compositions for treating chemical warfare agent-induced injuries
Semiconductor device having a plurality of elements on one semiconductor substrate and method of manufacturing the same
Catecholic butanes and use thereof for cancer therapy
Fuel cell system, and electric vehicle equipped with the fuel cell system
Focus detection device and imaging apparatus having the same
  Randomly Featured Patents
Reinforced pillowed microfiber webs
Electromagnetic flow meter
Apparatus for inducing and maintaining a penile erection
Pencil sharpener
Tilt bolt lock
Alarm clock with dial illumination
Method for distributing a clock signal within a semiconductor integrated circuit by minimizing clock skew
Golf ball
Electroluminescent device and method of manufacturing the same
Method of producing liquid crystal emulsion compositions