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
Methods of implanting dopant ions
Hydrogenolysis of ethyl acetate in alcohol separation processes
Device for determining the absolute angular position of the steering wheel of an electric power-assisted steering column of a motor vehicle using weighted dynamic parameters of the vehicle
Zero-copy network and file offload for web and application servers
Brushless electric motor or generator in shell construction
Determination of statistical upper bound for estimate of noise power spectral density
Method of fabricating semiconductor light emitting device
  Randomly Featured Patents
Pump assembly useful in internal combustion engines
Thermogelling biodegradable aqueous polymer solution
Olefin polymerization and copolymerization catalyst
Reverse Nyquist slope filter
Method of fabricating a semiconductor device and structure
Bonding electrical leads to pads with particles
On-chip transistor degradation monitoring
Electronic device having a predistortion filter and related methods
Mechanical resonator optimization using shear wave damping