Head-wearable ultra-wide field of view display device
First Claim
Patent Images
1. A head-wearable display device, comprising:
- a frame;
a light source fixed with respect to the frame, the light source configured to emit a stationary diverging light beam of light;
an ultra-wide field of view (UWFOV) reflective surface fixed with respect to the frame; and
a diverging reflective surface having a negative optical power fixed with respect to the frame that is configured to receive the stationary diverging light beam of light emitted from the light source, to diverge the light to reduce a vergence of the light, and to reflect the light toward the UWFOV reflective surface and spread the light completely across the UWFOV reflective surface, wherein the UWFOV reflective surface is configured to collimate and reflect the light toward a predetermined location.
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Abstract
Multiple-reflector ultrawide field of view (UWFOV) systems and methods are provided. In one embodiment, a head-wearable display device includes a frame, a narrow-beam light source fixed with respect to the frame, a UWFOV reflective surface fixed with respect to the frame, and a diverging reflective surface fixed with respect to the frame that is configured to receive light emitted from the narrow-beam light source and reflect the light toward the UWFOV reflective surface to spread the light completely across the UWFOV reflective surface.
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Citations
22 Claims
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1. A head-wearable display device, comprising:
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a frame; a light source fixed with respect to the frame, the light source configured to emit a stationary diverging light beam of light; an ultra-wide field of view (UWFOV) reflective surface fixed with respect to the frame; and a diverging reflective surface having a negative optical power fixed with respect to the frame that is configured to receive the stationary diverging light beam of light emitted from the light source, to diverge the light to reduce a vergence of the light, and to reflect the light toward the UWFOV reflective surface and spread the light completely across the UWFOV reflective surface, wherein the UWFOV reflective surface is configured to collimate and reflect the light toward a predetermined location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for presenting an image to an eye, comprising:
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emitting, from a light source, a stationary light beam of uncollimated light comprising imagery; receiving, by a diverging reflective surface having a negative optical power, the stationary light beam of uncollimated light; diverging the uncollimated light, by the diverging reflective surface, to reduce a vergence of the uncollimated light and reflecting the uncollimated light, by the diverging reflective surface, toward an ultra-wide field of view (UWFOV) reflective surface to spread the uncollimated light across a surface of the UWFOV reflective surface; and collimating, by the UWFOV reflective surface, the uncollimated light to generate collimated light and reflecting the collimated light toward the eye. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A head-wearable display device, comprising:
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a frame; a light source fixed with respect to the frame, the light source configured to emit a stationary beam of light; and a light path that begins at the light source and ends at an eye of a user, the light path having only two reflective surfaces and no optical components between the two reflective surfaces, including; an ultra-wide field of view (UWFOV) reflective surface fixed with respect to the frame; and a diverging reflective surface having a negative optical power fixed with respect to the frame that is configured to receive the stationary beam of light emitted from the light source, to diverge the light to reduce a vergence of the light, and to reflect the light toward the UWFOV reflective surface to spread the light across the UWFOV reflective surface, wherein the UWFOV reflective surface is configured to collimate and reflect the light toward a predetermined location. - View Dependent Claims (21, 22)
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Specification