Device for augmented reality or virtual reality display

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12265216
APP PUB NO 20220075185A1
SERIAL NO

17279016

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A device is disclosed comprising a waveguide (2; 102), an input diffractive optical structure (4; 104) configured to receive light from a projector and couple the received light into the waveguide and an output diffractive optical structure (10; 110). An intermediate diffractive optical structure (6, 8; 106) is configured to receive light from the input diffractive optical structure (4; 104), provide a one-dimensional expansion of the received light, and couple the expanded light towards the output diffractive optical structure (10; 110). The output diffractive optical structure (10; 110) is configured to receive light from the intermediate diffractive optical structure and couple it towards a viewer. The intermediate diffractive optical structure (6, 8; 106) comprises diffractive features that are oriented at a first angle to light received from the input diffractive optical structure to provide a first diffraction and a second diffraction within the intermediate diffractive optical structure in order to couple light towards the output diffractive optical structure. The first diffraction couples light from the input diffractive optical structure towards the diffractive features at a second angle so that the second diffraction is provided at a plurality of spaced positions in the intermediate diffractive optical structure thereby providing the one-dimensional expansion of light. The second diffraction couples light towards the output diffractive optical structure.

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Patent Owner(s)

Patent OwnerAddress
SNAP INC3000 31ST STREET SANTA MONICA CA 90405

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Valera, Mohmed Salim Abingdon, GB 34 2133

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