| abstract |
Polymeric optical lenses for LED (light emitting diode) light source modules, in particular LED light source modules comprising said optical lenses, and LED lamps comprising said modules. Optical lenses for LED (light emitting diode) light source modules include cellulose and derivatives thereof, starch and derivatives thereof, alginate and derivatives thereof, guar and derivatives thereof, chitin and derivatives thereof, and polymers selected from pectin and derivatives thereof. . |