Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Irradiance-redistribution lens and its applications to LED downlights










Image Number 8 for United States Patent #7618162.

An illumination-redistribution lens comprising a thick aspheric lens collecting a high proportion of the luminous output of a compact LED with a quasi-hemispheric pattern. After receiving the highly nonuniform illuminance from the nearby LED, the lower surface refractively deflects these rays into a less diverging angular pattern that results in uniform illuminance on the upper surface of the lens, which itself is shaped so its distribution of slope angles refractively deflects the uniform illuminance distribution into an exiting beam that will produce uniform illuminance on a distant target, such as a table below a ceiling-mounted unit. When square-cut sections of such lenses are laterally arrayed to form a downlight, a uniform rectangular spot will be produced on the target.








 
 
  Recently Added Patents
Electric connection box
Co-crystals of agomelatine, a process for there preparation and pharmaceutical compositions containing them
Linerless labels
Intake parameter-calculating device for internal combustion engine and method of calculating intake parameter
Imaging device, method and computer readable medium
Liquid composite compositions using non-volatile liquids and nanoparticles and uses thereof
Immunotherapy in cancer treatment
  Randomly Featured Patents
Tensioner for a chain or belt
Guard membranes for use in electrodialysis cells
Sole for a hybrid type golf club head
Apparatus and method for casting lead into plastic for side terminal batteries
Biocide composition and use
Process for disposing of developer for pigment-containing non-silver-salt photo sensitive material, apparatus therefor and automatic developing system
Computer readable medium, method and apparatus for preserving filtering conditions to query multilingual data sources at various locales when regenerating a report
Structural panel having integral heat pipe network
Line on glass liquid crystal display and method of fabricating the same
Mammalian receptors for interleukin-10 (IL-10)