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US 12,731,515 B2Granted
Fan assembly for displaying an image
AssigneeMagic Leap, Inc.
InventorsGuillermo Padin Rohena, Ralph Remsburg, Adrian Kaehler, Evan Francis Rynk
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Abstract
Apparatus and methods for displaying an image by a rotating structure are provided. The rotating structure can comprise blades of a fan. The fan can be a cooling fan for an electronics device such as an augmented reality display. In some embodiments, the rotating structure comprises light sources that emit light to generate the image. The light sources can comprise light-field emitters. In other embodiments, the rotating structure is illuminated by an external (e.g., non-rotating) light source.
Claims11
An augmented reality device comprising:
- a display system positioned in front of eyes of a user, the display system including one or more light field sub-displays with one or more pixels forming a first array of pixels and at least a first micro-lens associated with the first array of pixels, wherein each pixel of the first array of pixels is a light field emitter configured to emit light isotropically to be received by the first micro-lens, and
- wherein the first array of pixels is spaced apart from the first micro-lens at a distance approximately equal to a focal length of the first micro-lens such that the isotropic light from the first array of pixels is redirected by the first micro-lens into an array of substantially collimated beams of light at different outgoing angles;
- a non-transitory memory configured to store image data;
- and
- a processor operably coupled to the non-transitory memory and the display system, the processor comprising executable instructions to operate the pixels of the one or more light field sub-displays to display an image,
- wherein the display system further comprises a rotatable structure, and wherein the first array of pixels is mounted on the rotatable structure such that different viewing angles are generated by physical rotation of the rotatable structure, and
- wherein an angular direction of light emitted by a given pixel is determined at least in part by an instantaneous orientation of the rotatable structure.
4 more elements
An augmented reality device comprising:
- a display system positioned in front of eyes of a user, the display system including one or more light field sub-displays with one or more pixels forming a first array of pixels and at least a first micro-lens associated with the first array of pixels, wherein each pixel of the first array of pixels is a light field emitter configured to emit light isotropically to be received by the first micro-lens, and
- wherein the first array of pixels is spaced apart from the first micro-lens at a distance approximately equal to a focal length of the first micro-lens such that the isotropic light from the first array of pixels is redirected by the first micro-lens into an array of substantially collimated beams of light at different outgoing angles;
- a non-transitory memory configured to store image data;
- and
- a processor operably coupled to the non-transitory memory and the display system, the processor comprising executable instructions to operate the pixels of the one or more light field sub-displays to display an image,
- wherein the display system further comprises a rotatable structure, and wherein the first array of pixels is mounted on the rotatable structure such that different viewing angles are generated by physical rotation of the rotatable structure, and
- wherein the processor is configured to temporally multiplex different emitted light-field views over successive rotational positions of the rotatable structure.
4 more elements
Dependencies are inferred from the claim text.