Abstract:
A display system includes an optical component having a first and second surface, wherein the first surface comprises a diffractive optical element, and a projector system to create a projected image on the optical component. The projector includes an illumination source that emits electromagnetic radiation within a predetermined spectral band, an image generator that ascribes image characteristics to the radiation, and an optically-powered component that directs the radiation at the first surface of the optical component. The diffractive optical element reflects at least a portion of the radiation in a predetermined direction. The optical component has zero optical power for transmitted light. The optical component transmits at least a portion of the ambient scenery within a predetermined spectral band within a field-of-view of the projected image. The projected image maintains substantial boresight alignment with the ambient image.
Abstract:
A display system includes an optical component having a first and second surface, wherein the first surface comprises a diffractive optical element, and a projector system to create a projected image on the optical component. The projector includes an illumination source that emits electromagnetic radiation within a predetermined spectral band, an image generator that ascribes image characteristics to the radiation, and an optically-powered component that directs the radiation at the first surface of the optical component. The diffractive optical element reflects at least a portion of the radiation in a predetermined direction. The optical component has zero optical power for transmitted light. The optical component transmits at least a portion of the ambient scenery within a predetermined spectral band within a field-of-view of the projected image. The projected image maintains substantial boresight alignment with the ambient image.
Abstract:
A method for detecting light sources. The method includes capturing an image including a sub-infrared light emitter, applying a filter to a pixel of the captured image to isolate a signal strength of a range of frequencies, and comparing the signal strength of the filtered pixel to an expected signal strength of a background spectra for the range of frequencies. As a result of a difference between the signal strength of the filtered pixel and the expected signal strength exceeding a predetermined threshold, the method includes identifying the pixel as corresponding to a light emitter. As a result of the difference between the signal strength of the filtered pixel and the expected signal strength not a predetermined threshold, the method includes identifying the pixel as not corresponding to a light emitter.
Abstract:
A display system includes a projector system to create a plurality of image streams and a plurality of combiners, each corresponding to one of the directions of the image streams and to reflect at least a portion of the image stream received at that combiner. The projector system includes an illumination source that emits electromagnetic radiation within a predetermined spectral band, an image generator that ascribes image characteristics to the radiation to create a plurality of image streams, and an image separation module to direct the image streams in a plurality of directions.