Full color holographic image combiner system
First Claim
1. A display comprising equipment for generating a virtual image in the field of view of an observer along with an ambient image, said equipment comprising at least one light source having a full-width-at-half-maximum-wavelength range less than 2 nm wherein said light source has sufficient brightness so the virtual image can be seen along with the ambient image.
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Accused Products
Abstract
A device, such as a heads up display, includes equipment for generating a virtual image in the field of view of an observer. The equipment includes at least one light source having a wavelength range less than 2 nm. The light source can be a low pressure gas discharge lamp. The device also includes a holographic optical element that provides a virtual image. The device also includes an image source, such as a mask or an LCD. In one embodiment the holographic optical element combines an image on a display with an ambient image. The holographic element provides multiple colors undistorted in a virtual image appearing to the observer as converging from the same distance.
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Citations
56 Claims
- 1. A display comprising equipment for generating a virtual image in the field of view of an observer along with an ambient image, said equipment comprising at least one light source having a full-width-at-half-maximum-wavelength range less than 2 nm wherein said light source has sufficient brightness so the virtual image can be seen along with the ambient image.
- 20. A heads up display comprising equipment for generating a virtual image in the field of view of an observer, said equipment comprising a low-pressure gas discharge light source and a mask, said gas discharge light source for providing light having a full-width-at-half-maximum-wavelength range less than 2 nm.
- 24. A heads up display comprising equipment for generating a virtual image in the field of view of an observer, said equipment comprising a pixilated display that provides light having a full-width-at-half-maximum-wavelength range less than 2 nm, wherein said display provides light having sufficient brightness so said virtual image can be seen along with an ambient image.
- 27. A display comprising equipment for generating a virtual image in the field of view of an observer, said equipment comprising a holographic optical element, an image source, and a light source for providing light having a full-width-at-half-maximum-wavelength range less than 2 nm, wherein said light source has sufficient brightness so said virtual image can be seen along with an ambient image.
- 31. A display for an observer viewing a holographic image overlapping an ambient image, the display comprising a light source and a plurality of holographic optical elements, wherein said light source emits light centered at a plurality of wavelengths, at each said wavelength said light having a fill-width-at-half-maximum-wavelength range less than 2 nm, wherein said light source has sufficient brightness so said virtual image can be seen along with an ambient image, and wherein each of said plurality of holographic optical elements provides a holographic virtual image superimposed on the ambient image, wherein each of said holographic optical elements uses light from one of said plurality of wavelengths to provide said virtual image appearing to the observer as converging from the same distance.
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46. A display for viewing a virtual image in the field of view of an observer, comprising at least one light source and a holographic element, said light source having a full-width-at-half-maximum-wavelength range less than 2 nm, and wherein said holographic element comprises a narrow bandwidth reflector.
- 47. A display for viewing a virtual image in the field of view of an observer, comprising at least one light source and a holographic element, wherein said holographic element comprises a narrow bandwidth filter to provide a full-width-at-half-maximum-wavelength range less than 2 nm.
- 50. A display for viewing a virtual image in the field of view of an observer, comprising at least one light source and a holographic element, wherein said holographic element comprises a narrow bandwidth filter to provide a full-width-at-half-maximum-wavelength range less than 20 nm.
- 54. A display for viewing a virtual image in the field of view of an observer, comprising at least one light source and a holographic element, wherein said holographic element comprises a plurality of narrow bandwidth filters to provide a plurality of separate narrow bandwidth wavelength ranges, wherein each said narrow bandwidth wavelength range has a full width at half maximum of less than 20 nm.
Specification