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
TV wall mount
Treatment of diabetes with milk protein hydrolysate
Method to alter silicide properties using GCIB treatment
HYR1 as a target for active and passive immunization against Candida
Methods circuits apparatuses and systems for facilitating access to online content
Buffer pool extension for database server
Configurable logic cells
  Randomly Featured Patents
Apparatus for fluid-bed drying, particularly for simultaneous drying and disintegration of a material in the form of a paste
Self-focusing camera apparatus and method
Relative humidity control system for corrosion test chamber
Enhanced laser projector calibration wall
High efficiency digital data encoding and decoding apparatus
Sync block numbering of trick play signals during recording of such signals on a record carrier
Structure of air bag door of instrument panel
Process for the production of binder-free press-molded heat-insulating parts
Process for producing highly ion-conductive porcelain
Drop marker