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
Tool box
Method, apparatus and article for detection of transponder tagged objects, for example during surgery
Method and system for reduction of decoding complexity in a communication system
Techniques to manage communications resources for a multimedia conference event
Circuit board and display panel assembly having the same
Controller for internal combustion engine
Method for combining images and magnetic resonance scanner
  Randomly Featured Patents
Image producing material
Rear leg support for easel or the like
Method for the manufacture or treatment of a material web
Arrangement for resealing carbonated beverage containers
Process for producing .alpha. .beta.-unsaturated nitrile
Modular shutter assembly including a die cut panel
Liquid level point switch sensor
Method and apparatus for processing modulation symbols for soft input decoders
Process for the production of water-dilutable binders and their use in coating compositions
Sialoadhesin-related compositions and methods