Resources Contact Us Home
Illumination device with light emitting diodes and moveable light adjustment member

Image Number 11 for United States Patent #7984999.

A light emitting device is produced using one or more light emitting diodes within a light mixing cavity formed by surrounding sidewalls. The light emitting device includes a light adjustment member that is movable to alter the shape or color of the light produced by the light emitting device. For example, the light adjustment member may alter the exposure of the wavelength converting area to the light emitted that is emitted by the light emitting diode in the light mixing cavity. Alternatively, the height of a lens may be adjusted to change the width of the beam produced. Alternatively, a movable substrate with areas of different wavelength converting materials may adjustably cover the output port of the light mixing cavity to alter the color point of the light produced.

  Recently Added Patents
Hydrogen generation device and fuel cell system
Reception method and reception apparatus
Wall flow type exhaust gas purification filter
Vehicle grille
Method to dynamically tune precision resistance
Fast carrier allocation in multi-carrier systems
Means to securely fixate pacing leads and/or sensors in vessels
  Randomly Featured Patents
Apparatus for sensorless positioning with signal amplifier
Electrical connection system
Use of quaternary carboxylic acid alkanolamine ester salts as microbicide agents
Micro-sensor for sensing chemical substance
Device for the rapid producion of large-area smoke screens
Image forming apparatus that cleans a wire of a charger
Turbomachine ejector nozzle
Folding seat
Process for the preparation of penicillins and penicillin derivatives
Split-gate power module for suppressing oscillation therein