# US 10,871,657 B2 · Floating image display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,871,657 B2 - Document ID: US10871657B2 - Status: Granted - Kind: B2 - Application number: 16/502,434 - Filed: 2019-07-03 - Published: 2019-10-24 - Granted: 2020-12-22 - Earliest claimed: 2016-03-08 - Assignees: Microsoft Technology Licensing, LLC - Applicants: Microsoft Technology Licensing, LLC - Inventors: Karlton David Powell - Web page: https://patentgrep.com/patent/US10871657B2 ## CPC - G02B 30/56: by projecting aerial or floating images - G02B 3/0062: {Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between} - G02B 5/32: Holograms used as optical elements - G02B 7/023: {permitting adjustment} - G02B 27/1066: {for enhancing image performance, like resolution, pixel numbers, dual magnifications or dynamic range, by tiling, slicing or overlapping fields of view} - G02B 27/123: {The splitting element being a lens or a system of lenses, including arrays and surfaces with refractive power} - G02B 30/27: involving lenticular arrays - H04N 13/128: Adjusting depth or disparity - H04N 13/161: Encoding, multiplexing or demultiplexing different image signal components (for multi-view video sequence encoding H04N19/597) - H04N 13/356: having separate monoscopic and stereoscopic modes - H04N 2013/0081: {Depth or disparity estimation from stereoscopic image signals} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract Examples are disclosed that relate to optical systems. One example provides a display device comprising an image source including a plurality of encoded regions from which encoded image light is output, and a lens array. The lens array may be positioned to receive the encoded image light and output decoded image light that forms a floating image viewable from a plurality of different vantage points, wherein from a first vantage point decoded image light forming a portion of the floating image originates from a first encoded region, and wherein from a second vantage point decoded image light forming the portion originates from a second encoded region, different than the first encoded region. ## Claims ### Claim 1 A display device, comprising: an image source including a plurality of encoded regions from which encoded image light is output; and a lens array including a plurality of lenslets, the lens array positioned to receive the encoded image light and output decoded image light that forms a floating image viewable from a plurality of different vantage points, wherein from a first vantage point decoded image light forming a portion of the floating image originates from a first encoded region, wherein from a second vantage point decoded image light forming the portion originates from a second encoded region, different than the first encoded region, and wherein a sum of a distance between adjacent lenslets and an offset is equal to an integer multiple of a distance between adjacent encoded regions. ### Claim 2 (depends on 1) The display device of claim 1, wherein the lens array includes an in-tandem pair of microlens arrays having the plurality of lenslets. ### Claim 3 (depends on 1) The display device of claim 1, wherein the lens array is disposed on a substrate. ### Claim 4 (depends on 3) The display device of claim 3, wherein the lens array is disposed on opposite sides of the substrate. ### Claim 5 (depends on 1) The display device of claim 1, wherein the lens array is configured to transform the encoded image light from angle space to position space. ### Claim 6 (depends on 1) The display device of claim 1, wherein different portions of the encoded image light output from each of the plurality of encoded regions converge at two or more different apparent focal planes. ### Claim 7 (depends on 1) The display device of claim 1, wherein the image source is configured to adjust the encoded image light based on tracking, via an image sensor, a user vantage point from which the floating image is viewed. ### Claim 8 (depends on 7) The display device of claim 7, wherein the encoded image light is adjusted to maintain a consistent appearance of the floating image as the user vantage point changes. ### Claim 9 (depends on 7) The display device of claim 7, wherein the encoded image light is adjusted to form a different floating image as the user vantage point changes. ### Claim 10 (depends on 1) The display device of claim 1, wherein the image source includes two or more displays, and wherein the encoded image light is formed by optically combining respective image light output by each of the two or more displays. ### Claim 11 (depends on 1) The display device of claim 1, wherein the lens array is configured to telecentrically correct the encoded image light. ### Claim 12 A display device, comprising: an image source including a plurality of encoded regions from which encoded image light is output; and a lens array including a plurality of lenslets, the lens array positioned to receive the encoded image light and output decoded image light that forms a floating image viewable from a plurality of different vantage points, wherein from a first vantage point decoded image light forming a portion of the floating image originates from a first encoded region, and wherein from a second vantage point decoded image light forming the portion originates from a second encoded region, different than the first encoded region. ### Claim 13 (depends on 12) The display device of claim 12, wherein the lens array includes an in-tandem pair of microlens arrays having the plurality of lenslets. ### Claim 14 (depends on 12) The display device of claim 12, wherein the lens array is configured to transform the encoded image light from angle space to position space. ### Claim 15 (depends on 12) The display device of claim 12, wherein the image source is configured to adjust the encoded image light based on tracking, via an image sensor, a user vantage point from which the floating image is viewed. ### Claim 16 (depends on 15) The display device of claim 15, wherein the encoded image light is adjusted to maintain a consistent appearance of the floating image as the user vantage point changes. ### Claim 17 (depends on 15) The display device of claim 15, wherein the encoded image light is adjusted to form a different floating image as the user vantage point changes. ### Claim 18 An optical system, comprising: an image source configured to emit a first portion of image light from a first region and a second portion of image light from a second region, different than the first region, wherein the first portion of image light and the second portion of image light both correspond to a same specific part of an image; and a lens system configured to redirect the first portion of image light to a first vantage point, and to redirect the second portion of image light to a second vantage point different than the first vantage point, such that the same specific part of the image is formed by the first portion of image light from the first region when viewed from the first vantage point, and the same specific part of the image is formed by the second portion of image light from the second region when viewed from the second vantage point. ### Claim 19 (depends on 18) The optical system of claim 18, wherein the lens system is further configured to transform the first portion of image light and the second portion of image light from angle space to position space. ### Claim 20 (depends on 18) The optical system of claim 18, wherein the lens system is further configured to apply one or more geometric transformations to the first portion of image light and the second portion of image light.