Worn display system and method without requiring real time tracking for boresight precision
First Claim
Patent Images
1. A worn display for a user having a head and eyes, the worn display, comprising:
- a projector; and
a periscopic system configured to be wearable and physically separate from the projector and physically free from the projector across rotational movement of the periscopic system when worn on the head, the periscopic system including at least one diffraction grating member, the diffraction grating member having an input end for receiving a collimated image from the projector, and a combiner end for receiving light from an outside scene and providing the collimated image received at the input end and the light received from the outside scene to the user, wherein the worn display is configured to receive the collimated image at the input end from the projector disposed at a location above and behind the head when the periscopic system is worn on the head, the at least one diffraction grating member extending vertically from the input end to the combiner end, wherein the input end is configured to be disposed above the head to receive the image from the projector and the combiner end is configured to be disposed in front of the eyes when the periscopic system is worn by the user.
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Accused Products
Abstract
A worn display, such as a head worn display, includes a projector and a periscopic system configured to be wearable. The periscopic system includes at least one diffraction grating member. The member includes an input end for receiving an image from a projector and a combiner end for receiving light from a scene and providing the image received at the input end and the light received from the outside scene to the user. The head worn display can be used in aircraft applications to provide guidance information to a pilot.
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Citations
20 Claims
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1. A worn display for a user having a head and eyes, the worn display, comprising:
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a projector; and a periscopic system configured to be wearable and physically separate from the projector and physically free from the projector across rotational movement of the periscopic system when worn on the head, the periscopic system including at least one diffraction grating member, the diffraction grating member having an input end for receiving a collimated image from the projector, and a combiner end for receiving light from an outside scene and providing the collimated image received at the input end and the light received from the outside scene to the user, wherein the worn display is configured to receive the collimated image at the input end from the projector disposed at a location above and behind the head when the periscopic system is worn on the head, the at least one diffraction grating member extending vertically from the input end to the combiner end, wherein the input end is configured to be disposed above the head to receive the image from the projector and the combiner end is configured to be disposed in front of the eyes when the periscopic system is worn by the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A head mounted device for use with a display projector providing a collimated or near collimated image to eyes of a user, the user having a head, the head mounted device comprises:
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a first diffraction grating member; and a second diffraction grating member, wherein the first diffraction grating member and the second diffraction grating member are configured so that a first end of each of the first and second diffraction grating members can be provided in front of a respective eye of a user and a second end of each of the first and second diffraction grating members receives the collimated or near collimated image, wherein the first end receives light from a real world scene, wherein the second end is disposed above a top of the head of the user when the first diffraction grating member and the second diffraction grating member are worn by the user, wherein the first diffraction grating member and the second diffraction grating member are physically separate from the display projector and physically free from the display projector across rotational movement of the first diffraction grating member and the second diffraction grating member when worn on the head of the user. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A pair of optical elements configured for use with a projector disposed above and behind a head of a pilot, the pair of optical elements being worn by the pilot and each of the pair of optical elements comprising:
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a first diffraction grating configured to receive a collimated image or near collimated image from the projector when worn by the pilot, wherein the first diffraction grating is disposed above a head of the pilot when worn by the pilot; and a second diffraction grating disposed in front of a respective eye of the pilot when worn by the pilot, wherein the second diffraction grating provides an image from the projector to the pilot and allows conformal viewing of the image with a real world scene, wherein the pair of optical elements is physically separate from the projector and is physically free across rotational movement of the pair of optical elements from the projector when worn on the head of the user. - View Dependent Claims (18, 19, 20)
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Specification