WAVEGUIDE SPACERS WITHIN AN NED DEVICE
First Claim
Patent Images
1. An optical element for transmitting light from a light source to an eye box in a head mounted display device, comprising:
- first and second waveguides spaced from each other by a gap, the first and second waveguides receiving light from the light source and reflecting received light to the eye box;
one or more spacer elements positioned within the gap for maintaining a spacing between the first and second waveguides.
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Abstract
A system is disclosed for maintaining the spacing between waveguides in an optical element of a near eye display. Spacing is maintained with spacer elements mounted between adjacent waveguides in the optical element.
193 Citations
20 Claims
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1. An optical element for transmitting light from a light source to an eye box in a head mounted display device, comprising:
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first and second waveguides spaced from each other by a gap, the first and second waveguides receiving light from the light source and reflecting received light to the eye box; one or more spacer elements positioned within the gap for maintaining a spacing between the first and second waveguides. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An optical element for transmitting light from a light source to an eye box in a head mounted display device, comprising:
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first, second and third waveguides, the first and second waveguides separated from each other by a first gap, the second and third waveguides separated from each other by a second gap, the first, second and third waveguides receiving light from the light source and reflecting received light to the eye box; a first set of one or more spacer elements positioned within the first gap for maintaining a spacing between the first and second waveguides; and a second set of one or more spacer elements positioned within the second gap for maintaining a spacing between the second and third waveguides. - View Dependent Claims (14, 15, 16, 18, 19, 20)
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17. A system for presenting virtual objects in a mixed reality environment, the system comprising:
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a head mounted display including an optical element allowing images to be displayed from a light source to an eye box and allowing light from real world objects to reach the eye box, the optical element comprising; first and second waveguides spaced from each other by a gap, the first and second waveguides receiving light from the light source and reflecting received light to the eye box, and one or more spacer elements positioned within the gap for maintaining a spacing between the first and second waveguides; and a processor for generating virtual images for displayed to the eye box from the light source, the one or more spacer elements not interfering with light reaching the eye box from real world objects.
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Specification