Resources Contact Us Home
Illumination device and method using adaptable source and output format

Image Number 11 for United States Patent #7554737.

Systems and methods for providing illumination suitable for imaging devices such as laser projection systems, wherein the illumination pattern is adjustable by modifying one or more characteristics of a controlled angle diffuser. In one embodiment, a highly collimated (e.g., laser light) beam is passed through a holographic diffuser to create a well defined cone angle for the light emanating from each point on the diffuser. This light is focused into an illumination image that is controlled by the prescription of the diffuser. In one embodiment, the diffuser can be positioned to alternately place different regions having different prescriptions in the optical path corresponding to the illumination image. In one embodiment, the diffuser can be continually moved to eliminate speckling and "worminess" in the illumination image.

  Recently Added Patents
Method and device for detecting the dysfunction of a gas pressure sensor in a vehicle tire
Multi-dimensional credibility scoring
XDSL system and signal transmission method, sending device, and receiving device of xDSL system
Electronic multiparty accounts receivable and accounts payable system
Method of transmitting and receiving wireless resource information
Clock generator circuit for a charge pump
System and method for routing streaming data requests
  Randomly Featured Patents
Comparison shopping via financial management software
Apparatus and method for merging wireless data into an established process control system
Method and apparatus for treating waste products to recover the components thereof
Bicycle chain cleaning device and method
Method for reducing amine based contaminants
Vehicle speed control apparatus in accordance with curvature of vehicle trajectory
Phased array semiconductor laser with preferred emission in the fundamental supermode
Method and apparatus for presenting, searching, and viewing directories
Wireless LAN power savings
Shaving razor