# US 2025/0164800 A1 · Augmented and virtual reality display systems with correlated in-coupling and out-coupling optical regions for efficient light utilization > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0164800 A1 - Document ID: US20250164800A1 - Status: Published application - Kind: A1 - Application number: 19/027,789 - Filed: 2025-01-17 - Published: 2025-05-22 - Earliest claimed: 2020-05-22 - Assignees: Magic Leap, Inc. - Applicants: Magic Leap, Inc. - Inventors: Brian T. SCHOWENGERDT - Web page: https://patentgrep.com/patent/US20250164800A1 ## CPC - G02B 27/0172: {characterised by optical features} - G02B 6/0016: {Grooves, prisms, gratings, scattering particles or rough surfaces} - G02B 6/0076: {Stacked arrangements of multiple light guides of the same or different cross-sectional area} - G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking} - G02B 26/105: {with one or more pivoting mirrors or galvano-mirrors (G02B26/101 takes precedence)} - G02B 2027/0123: {comprising devices increasing the field of view} - G02B 2027/0125: {Field-of-view increase by wavefront division} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract Augmented reality and virtual reality display systems and devices are configured for efficient use of projected light. In some aspects, a display system includes a light projection system and a head-mounted display configured to project light into an eye of the user to display virtual image content. The head-mounted display includes at least one waveguide comprising a plurality of in-coupling elements each configured to receive, from the light projection system, light corresponding to a portion of the user's field of view and to in-couple the light into the waveguide; and a plurality of out-coupling elements configured to out-couple the light out of the waveguide to display the virtual content, wherein each of the out-coupling elements are configured to receive light from different ones of the in-coupling elements. ## Claims ### Claim 1 A waveguide comprising: a plurality of in-coupling elements configured to receive light and to in-couple the light into the waveguide such that that in-coupled light is conveyed within the waveguide via total internal reflection; and an out-coupling element configured to out-couple, from the waveguide, the light that is being conveyed within the waveguide, the out-coupling element including a plurality of out-coupling regions that are each configured to receive and out-couple a portion of the light that is in-coupled into the waveguide by an associated one or more of the in-coupling elements. ### Claim 2 (depends on 1) The waveguide of claim 1, wherein the plurality of in-coupling elements are arranged proximate to at least one lateral edge of the waveguide. ### Claim 3 (depends on 1) The waveguide of claim 1, wherein at least two of the out-coupling regions of separated from each other by at least one physical structure. ### Claim 4 (depends on 1) The waveguide of claim 1, wherein at least one of the plurality of in-coupling elements is arranged on a same surface of the waveguide as the out-coupling element. ### Claim 5 (depends on 1) The waveguide of claim 1, wherein at least one of the plurality of in-coupling elements is arranged on an opposite surface of the waveguide as the out-coupling element. ### Claim 6 (depends on 1) The waveguide of claim 1, wherein the plurality of in-coupling elements are arranged in a row on the waveguide, and wherein each of the out-coupling regions is configured as a stripe that is elongated along an axis that crosses the row. ### Claim 7 (depends on 1) The waveguide of claim 1, wherein each of the out-coupling regions is configured to receive and out-couple a portion of the light that is in-coupled into the waveguide by particular one of the in-coupling elements. ### Claim 8 (depends on 1) The waveguide of claim 1, wherein at least two of the plurality of in-coupling elements are disposed along different lateral edges of out-coupling element. ### Claim 9 (depends on 1) The waveguide of claim 1, wherein the plurality of in-coupling elements substantially encircle the out-coupling element. ### Claim 10 (depends on 1) The waveguide of claim 1, wherein the out-coupling regions are arranged in a grid pattern on the waveguide. ### Claim 11 (depends on 1) The waveguide of claim 1, wherein the plurality of in-coupling elements comprise diffractive gratings. ### Claim 12 (depends on 11) The waveguide of claim 11, wherein each of the in-coupling elements has a different grating pitch than at least one other of the in-coupling elements. ### Claim 13 (depends on 11) The waveguide of claim 11, wherein each of the in-coupling elements has a different grating orientation, within a plane of a major surface of the waveguide, than at least one other of the in-coupling elements. ### Claim 14 (depends on 11) The waveguide of claim 11, wherein each of the in-coupling elements has a different tilt, relative to a plane of a major surface of the waveguide, than at least one other of the in-coupling elements. ### Claim 15 (depends on 1) The waveguide of claim 1, wherein each of the in-coupling elements is arranged to in-couple light and to direct that light to propagate by total internal reflection along a different direction, within the waveguide, than at least one other of the in-coupling elements. ### Claim 16 (depends on 1) The waveguide of claim 1, wherein the in-coupling elements are spaced apart from one another. ### Claim 17 (depends on 1) A display system comprising: a light projection system; and a head-mountable display configured to display the virtual image content, the head-mountable display including the waveguide of claim 1. ### Claim 18 (depends on 17) The display system of claim 17, wherein the waveguide is one of a stack of waveguides included in the head-mountable display. ### Claim 19 (depends on 18) The display system of claim 18, wherein different ones of the stack of waveguides are configured to output light with different amounts of wavefront divergence corresponding to different depth planes. ### Claim 20 (depends on 18) The display system of claim 18, wherein different ones of the stack of waveguides are configured to receive, convey, and output light of different wavelength ranges corresponding to different colors.