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
Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
Method and device for generating low-jitter clock
Image decolorizing device
Image processing device, image forming apparatus, and non-transitory computer readable recording medium
Pharmaceutical composition comprising gabapentin or an analogue thereof and an .alpha.-aminoamide and its analgesic use
Resonant oscillator with start up and shut down circuitry
  Randomly Featured Patents
Enzymatic preparation of glucose syrup from starch
Tire tread
System and method for rewarding a user's interaction behavior with a computer system
Ink set having excellent color reproduction
Torsion link
Treatment for cardiovascular disease
Metal-air battery and gas impermeable anodic conductive matrix
Bearer ring - printing press cylinder alignment and connection construction for rotary printing machines
Optical dispersion compensation
Methods and systems for performing oilfield production operations