Retinal display scanning
First Claim
1. A scanning display for projecting an image directly onto an eye, comprising:
- a first beam set for generating light of a first image sector of a display field;
a second beam set for generating light of a second image sector of the display field; and
a scanning device receiving the first beam set and the second beam set, the scanning device scanning light from the first beam set along two axes within the first image sector and concurrently scanning light from the second beam set along two axes within the second image sector to scan the image onto the eye, wherein the first image sector and second image sector are adjacent, substantially non-overlapping regions of the display field, the image being scanned within the display field.
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Abstract
A virtual retinal display utilizes photon generation and manipulation to create a panoramic, high resolution, color virtual image that is projected directly onto the retina of the eye without creating a real or an aerial image that is viewed via a mirror or optics. The virtual retinal display includes a source of photons, the photons being modulated with video information and scanned in a raster type of pattern directly onto the retina of the user'"'"'s eye. The photon generator may utilize coherent or non-coherent light. Further, the photon generator may utilize color light generators so as to scan a colored virtual image directly onto the retina of the user'"'"'s eye. The virtual retinal display may also include a depth accommodation cue to vary the focus of scanned photons rapidly so as to control the depth perceived by a user for each individual picture element of the virtual image. Further, an eye tracking system may be utilized to sense the position of an entrance pupil of the user'"'"'s eye, the detected pupil position being utilized to move the scanned photons so as to be approximately coincident with the entrance pupil of the eye. The detected pupil position may also be used to change the video image scanned onto the retina so that as the user'"'"'s eye moves, the view perceived by the user changes.
103 Citations
15 Claims
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1. A scanning display for projecting an image directly onto an eye, comprising:
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a first beam set for generating light of a first image sector of a display field;
a second beam set for generating light of a second image sector of the display field; and
a scanning device receiving the first beam set and the second beam set, the scanning device scanning light from the first beam set along two axes within the first image sector and concurrently scanning light from the second beam set along two axes within the second image sector to scan the image onto the eye, wherein the first image sector and second image sector are adjacent, substantially non-overlapping regions of the display field, the image being scanned within the display field. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for scanning an image onto a viewer'"'"'s eye, comprising the steps of:
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generating a first beam set of light modulaed according to a first image sector of the image;
generating a second beam set of light modulated according to a second image sector of the image;
receiving the first beam set and the second beam set at a common scanning device;
scanning light from the first beam set along two axes to a first region of a display field; and
concurrently with the step of scanning light from the first beam set, scanning light from the second beam set along two axes to a second region of the display field, wherein the first region and second region of the display field are adjacent and substantially non-overlapping. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification