Beam angle sensor in virtual/augmented reality system
First Claim
1. A display subsystem for a virtual image generation system used by an end user, comprising:
- a waveguide apparatus;
an imaging element configured for emitting light;
a collimation element configured for collimating the light from the imaging element into a light beam;
an in-coupling element (ICE) configured for directing the collimated light beam from the collimation element down the waveguide apparatus, such that a plurality of light rays exit the waveguide apparatus to display a pixel of an image frame to the end user, the pixel having a location encoded with angles of the plurality of exiting light rays; and
a sensing assembly configured for sensing at least one parameter indicative of the exiting light ray angles, wherein the at least one sensed parameter comprises an intensity of at least one light ray representative of the plurality of exiting light rays.
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Accused Products
Abstract
A virtual image generation system for use by an end user comprises a projection subsystem configured for generating a collimated light beam, and a display configured emitting light rays in response to the collimated light beam to display a pixel of an image frame to the end user. The pixel has a location encoded with angles of the emitted light rays. The virtual image generation system further comprises a sensing assembly configured for sensing at least one parameter indicative of at least one of the emitted light ray angles, and a control subsystem configured for generating image data defining a location of the pixel, and controlling an angle of the light beam relative to the display based on the defined location of the pixel and the sensed parameter(s).
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Citations
56 Claims
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1. A display subsystem for a virtual image generation system used by an end user, comprising:
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a waveguide apparatus; an imaging element configured for emitting light; a collimation element configured for collimating the light from the imaging element into a light beam; an in-coupling element (ICE) configured for directing the collimated light beam from the collimation element down the waveguide apparatus, such that a plurality of light rays exit the waveguide apparatus to display a pixel of an image frame to the end user, the pixel having a location encoded with angles of the plurality of exiting light rays; and a sensing assembly configured for sensing at least one parameter indicative of the exiting light ray angles, wherein the at least one sensed parameter comprises an intensity of at least one light ray representative of the plurality of exiting light rays. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A virtual image generation system for use by an end user, comprising:
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a projection subsystem configured for generating a collimated light beam; a display configured emitting light rays in response to the collimated light beam to display a pixel of an image frame to the end user, the pixel having a location encoded with angles of the emitted light rays; a sensing assembly configured for sensing at least one parameter indicative of at least one of the emitted light ray angles; and a control subsystem configured for generating image data defining a location of the pixel, and controlling an angle of the light beam relative to the display based on the defined location of the pixel and the at least one sensed parameter, wherein the at least one sensed parameter comprises an intensity of at least one light ray representative of the plurality of exiting light rays. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification