# US 2014/0198128 A1 · Dynamic zone plate augmented vision eyeglasses > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198128 A1 - Document ID: US20140198128A1 - Status: Published application - Kind: A1 - Application number: 13/740,219 - Filed: 2013-01-13 - Published: 2014-07-17 - Earliest claimed: 2013-01-13 - Assignees: QUALCOMM Incorporated - Applicants: Qualcomm Incorporated - Inventors: John H. HONG; Jian J. MA; Chong U. LEE; Tallis Y. CHANG; Jay C. YUN; Robert Sean DALEY; Frederick D. KIM - Web page: https://patentgrep.com/patent/US20140198128A1 ## CPC - G09G 5/00: Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators (image data processing or generation, in general G06T) - G02B 26/106: {having diffraction gratings as scanning elements, e.g. holographic scanners (holographic optical elements G02B5/32, holography G03H)} - G02B 27/0172: {characterised by optical features} - G02C 7/083: {Electrooptic lenses} - G02C 7/101: {having an electro-optical light valve (electro-optical elements per se G02F)} - G02F 1/134309: {characterised by their geometrical arrangement} - G02B 2027/0127: {comprising devices increasing the depth of field} - G02B 2027/0147: {comprising a device modifying the resolution of the displayed image} - G02B 2027/0178: {Eyeglass type (eyeglass details G02C)} - G02F 1/294: {Variable focal length devices} - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A method, an apparatus, and a computer program product for modulating optics in a display are provided. An apparatus forms a plurality of zone plates in a liquid crystal using electric fields. Each zone plate has a center, and the centers are aligned along a first axis of the display. The apparatus moves the plurality of zone plates in a first direction along a second axis of the display different from the first axis of the display, while maintaining alignment of the centers of the plurality of zone plates along the first axis. Such movement is provided through repositioning of electric fields through the liquid crystal. ## Claims ### Claim 1 A method of generating a retina image by modulating optics in a retina display, comprising: forming a plurality of zone plates in a liquid crystal using electric fields, each zone plate having a center, wherein the centers are aligned along a first axis of the display; and moving, by repositioning electric fields through the liquid crystal, the plurality of zone plates in a first direction along a second axis of the display different from the first axis of the display, while maintaining alignment of the centers of the plurality of zone plates along the first axis. ### Claim 2 (depends on 1) The method of claim 1, wherein forming a plurality of zone plates comprises establishing electric fields between a plurality of electrode sets on a first side of the liquid crystal and an electrode set on a second side of the liquid crystal. ### Claim 3 (depends on 2) The method of claim 2, wherein the electrodes of the plurality of electrode sets on the first side are substantially orthogonal to the electrodes of the electrodes set on the second side. ### Claim 4 (depends on 2) The method of claim 2, wherein establishing electric fields comprises: applying a set of voltages of varying values to each of the plurality of electrode sets on the first side; and applying a set of voltages of varying values to the electrode set on the second side. ### Claim 5 (depends on 4) The method of claim 4, wherein: each set of voltages applied to an electrode set defines a chirp distribution having a chirp center corresponding to a first-side electrode, in the case of voltages applied to electrode sets on the first side, or a second-side electrode in the case of voltages applied to the electrode set on the second side; and intersections of a first chirp distribution applied to an electrodes set on the first side and a second chirp applied to the electrode set on the second side define a respective center for one of the plurality of zone plates. ### Claim 6 (depends on 5) The method of claim 5, wherein moving the plurality of zone plates comprises: shifting at least one chirp distribution applied to an electrode set on the first side so that a corresponding first-side chirp center changes, while maintaining the chirp distribution applied to the electrode set on the second side so that the second-side chirp center is unchanged. ### Claim 7 (depends on 5) The method of claim 5, wherein moving the plurality of zone plates comprises shifting the chirp distribution applied to the electrode set on the second side so that the second-side chirp center changes. ### Claim 8 (depends on 1) The method of claim 1, wherein the zone plates are moved at intervals sufficient to form a gapless retina image on an eye retina. ### Claim 9 (depends on 1) The method of claim 1, further comprising aligning the retina image with a real-world scene visible through the display to form an augmented vision. ### Claim 10 (depends on 1) The method of claim 1, further comprising controlling a focusing power of the plurality of zone plates to accommodate for a vision correction need of a user of the display. ### Claim 11 (depends on 10) The method of claim 10, wherein controlling the focusing power of the plurality of zone plates comprises applying customized chirp distributions to one or more sets of electrodes. ### Claim 12 An apparatus for generating a retina image by modulating optics in a display, comprising: means for forming a plurality of zone plates in a liquid crystal using electric fields, each zone plate having a center, wherein the centers are aligned along a first axis of the display; and means for moving, by repositioning electric fields through the liquid crystal, the plurality of zone plates in a first direction along a second axis of the display different from the first axis of the display, while maintaining alignment of the centers of the plurality of zone plates along the first axis. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the means for forming a plurality of zone plates comprises means for establishing electric fields between a plurality of electrode sets on a first side of the liquid crystal and an electrode set on a second side of the liquid crystal. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the electrodes of the plurality of electrode sets on the first side are substantially orthogonal to the electrodes of the electrodes set on the second side. ### Claim 15 (depends on 13) The apparatus of claim 13, wherein the means for establishing electric fields is configured to: applying a set of voltages of varying values to each of the plurality of electrode sets on the first side; and applying a set of voltages of varying values to the electrode set on the second side. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein: each set of voltages applied to an electrode set defines a chirp distribution having a chirp center corresponding to a first-side electrode, in the case of voltages applied to electrode sets on the first side, or a second-side electrode in the case of voltages applied to the electrode set on the second side; and intersections of a first chirp distribution applied to an electrodes set on the first side and a second chirp applied to the electrode set on the second side define a respective center for one of the plurality of zone plates. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the means for moving the plurality of zone plates is configured to shift at least one chirp distribution applied to an electrode set on the first side so that a corresponding first-side chirp center changes, while maintaining the chirp distribution applied to the electrode set on the second side so that the second-side chirp center is unchanged. ### Claim 18 (depends on 16) The apparatus of claim 16, wherein the means for moving the plurality of zone plates is configured to shift the chirp distribution applied to the electrode set on the second side so that the second-side chirp center changes. ### Claim 19 (depends on 12) The apparatus of claim 12, wherein the means for moving the plurality of zone plates is configured to move the zone plates at intervals sufficient to form a gapless retina image on an eye retina. ### Claim 20 (depends on 12) The apparatus of claim 12, further comprising means for aligning the retina image with a real-world scene visible through the display to form an augmented vision. ### Claim 21 (depends on 12) The apparatus of claim 12, further comprising means for controlling a focusing power of the plurality of zone plates to accommodate for a vision correction need of a user of the display. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the means for controlling the focusing power of the plurality of zone plates is configured to applying customized chirp distributions to one or more sets of electrodes. ### Claim 23 An apparatus for generating a retina image by modulating optics in a retina display, comprising: a processing system configured to: form a plurality of zone plates in a liquid crystal using electric fields, each zone plate having a center, wherein the centers are aligned along a first axis of the display; and move, by repositioning electric fields through the liquid crystal, the plurality of zone plates in a first direction along a second axis of the display different from the first axis of the display, while maintaining alignment of the centers of the plurality of zone plates along the first axis. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the processing system is configured to form a plurality of zone plates by establishing electric fields between a plurality of electrode sets on a first side of the liquid crystal and an electrode set on a second side of the liquid crystal. ### Claim 25 (depends on 24) The apparatus of claim 24, wherein the electrodes of the plurality of electrode sets on the first side are substantially orthogonal to the electrodes of the electrodes set on the second side. ### Claim 26 (depends on 24) The apparatus of claim 24, wherein the processing system is configured to establish electric fields by: applying a set of voltages of varying values to each of the plurality of electrode sets on the first side; and applying a set of voltages of varying values to the electrode set on the second side. ### Claim 27 (depends on 26) The apparatus of claim 26, wherein: each set of voltages applied to an electrode set defines a chirp distribution having a chirp center corresponding to a first-side electrode, in the case of voltages applied to electrode sets on the first side, or a second-side electrode in the case of voltages applied to the electrode set on the second side; and intersections of a first chirp distribution applied to an electrodes set on the first side and a second chirp applied to the electrode set on the second side define a respective center for one of the plurality of zone plates. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein the processing system is configured to move the plurality of zone plates by shifting at least one chirp distribution applied to an electrode set on the first side so that a corresponding first-side chirp center changes, while maintaining the chirp distribution applied to the electrode set on the second side so that the second-side chirp center is unchanged. ### Claim 29 (depends on 27) The apparatus of claim 27, wherein the processing system is configured to move the plurality of zone plates by shifting the chirp distribution applied to the electrode set on the second side so that the second-side chirp center changes. ### Claim 30 (depends on 23) The apparatus of claim 23, wherein the processing system is configured to move the zone plates at intervals sufficient to form a gapless retina image on an eye retina. ### Claim 31 (depends on 23) The apparatus of claim 23, wherein the processing system is further configured to align the retina image with a real-world scene visible through the display to form an augmented vision. ### Claim 32 (depends on 23) The apparatus of claim 23, wherein the processing system is further configured to control a focusing power of the plurality of zone plates to accommodate for a vision correction need of a user of the display. ### Claim 33 (depends on 32) The apparatus of claim 32, wherein the processing system is further configured to control the focusing power of the plurality of zone plates by applying customized chirp distributions to one or more sets of electrodes. ### Claim 34 A computer program product for generating a retina image by modulating optics in a retina display, comprising: a computer-readable medium comprising code for: forming a plurality of zone plates in a liquid crystal using electric fields, each zone plate having a center, wherein the centers are aligned along a first axis of the display; and moving, by repositioning electric fields through the liquid crystal, the plurality of zone plates in a first direction along a second axis of the display different from the first axis of the display, while maintaining alignment of the centers of the plurality of zone plates along the first axis. ### Claim 35 (depends on 34) The product of claim 34, further comprising code for establishing electric fields between a plurality of electrode sets on a first side of the liquid crystal and an electrode set on a second side of the liquid crystal. ### Claim 36 (depends on 35) The product of claim 35, wherein the electrodes of the plurality of electrode sets on the first side are substantially orthogonal to the electrodes of the electrodes set on the second side. ### Claim 37 (depends on 35) The product of claim 35, further comprising code for: applying a set of voltages of varying values to each of the plurality of electrode sets on the first side; and applying a set of voltages of varying values to the electrode set on the second side. ### Claim 38 (depends on 37) The product of claim 37, wherein: each set of voltages applied to an electrode set defines a chirp distribution having a chirp center corresponding to a first-side electrode, in the case of voltages applied to electrode sets on the first side, or a second-side electrode in the case of voltages applied to the electrode set on the second side; and intersections of a first chirp distribution applied to an electrodes set on the first side and a second chirp applied to the electrode set on the second side define a respective center for one of the plurality of zone plates. ### Claim 39 (depends on 38) The product of claim 38, further comprising code for shifting at least one chirp distribution applied to an electrode set on the first side so that a corresponding first-side chirp center changes, while maintaining the chirp distribution applied to the electrode set on the second side so that the second-side chirp center is unchanged. ### Claim 40 (depends on 38) The product of claim 38, further comprising code for shifting the chirp distribution applied to the electrode set on the second side so that the second-side chirp center changes. ### Claim 41 (depends on 34) The product of claim 34, comprising code for moving the zone plates at intervals sufficient to form a gapless retina image on an eye retina. ### Claim 42 (depends on 34) The product of claim 34, comprising code for aligning the retina image with a real-world scene visible through the display to form an augmented vision. ### Claim 43 (depends on 34) The product of claim 34, comprising code for controlling a focusing power of the plurality of zone plates to accommodate for a vision correction need of a user of the display. ### Claim 44 (depends on 43) The product of claim 43, further comprising code for applying customized chirp distributions to one or more sets of electrodes to control the focusing power.