# US 12,216,277 B2 · Optical element for deconvolution > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,216,277 B2 - Document ID: US12216277B2 - Status: Granted - Kind: B2 - Application number: 17/963,609 - Filed: 2022-10-11 - Published: 2023-04-20 - Granted: 2025-02-04 - Earliest claimed: 2021-10-14 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Ernest Rehmatulla Post - Web page: https://patentgrep.com/patent/US12216277B2 ## CPC - G02B 27/0068: {having means for controlling the degree of correction, e.g. using phase modulators, movable elements (controlling the phase of light using moving or deformable elements G02B26/06)} - H04N 23/95: Computational photography systems, e.g. light-field imaging systems - G02B 5/1871: {Transmissive phase gratings} - G02B 26/06: for controlling the phase of light (G02B26/08 takes precedence {, measuring optical phase difference G01J9/00}) - G06T 5/20: using local operators - G06T 5/73: Deblurring; Sharpening - H04N 23/53: of electronic viewfinders, e.g. rotatable or detachable - H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof - G02B 1/002: {made of materials engineered to provide properties not available in nature, e.g. metamaterials} - G02B 5/32: Holograms used as optical elements - G06T 2207/20021: Dividing image into blocks, subimages or windows - G06T 2207/20212: Image combination - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract In one embodiment, a method of constructing a corrective phase mask for an optical element, includes propagating, for each of one or more wavelengths, a point source field from an object plane to a corrective mask plane to determine a source field and propagating, for each of the one or more wavelengths, the point source field from an image plane to the corrective mask plane to determine an image field. The method may further include determining, for each of the one or more wavelengths, a phase modulation field based on the source field and the image field; and determining a multi-wavelength phase modulation field based on combining the phase modulation field for each of the one or more wavelengths. ## Claims ### Claim 1 A method of constructing a corrective phase mask for a physical corrective optical element, comprising: propagating, for each of one or more wavelengths, a point source field from an object plane to a corrective mask plane to determine a source field; propagating, for each of the one or more wavelengths, the point source field from an image plane to the corrective mask plane to determine an image field; determining, for each of the one or more wavelengths, a phase modulation field based on the source field and the image field; determining a multi-wavelength phase modulation field based on combining the phase modulation field for each of the one or more wavelengths; and constructing the physical corrective optical element based on the determined multi-wavelength phase modulation field to deblur distorted images without having to deconvolve the image computationally. ### Claim 2 (depends on 1) The method of claim 1, wherein the modulation field for each of the one or more wavelengths is combined based on at least one of: super-positioning or random sampling. ### Claim 3 (depends on 1) The method of claim 1, further comprising providing an optical element based on the multi-wavelength phase modulation field. ### Claim 4 (depends on 3) The method of claim 3, wherein the optical element is disposed in a computing device comprising: a display; an image sensor disposed behind the display; and the optical element disposed in front of the image sensor, wherein the optical element deblurs optical blurring caused by the display. ### Claim 5 (depends on 4) The method of claim 4, wherein the optical element is disposed behind the display. ### Claim 6 (depends on 4) The method of claim 4, wherein the optical element is disposed spatially coincident with the display. ### Claim 7 (depends on 1) The method of claim 1, wherein for each of the one or more wavelengths the phase modulation field comprises the source field for that wavelength divided by the image field for that wavelength. ### Claim 8 (depends on 1) The method of claim 1, wherein the point source field from the object plane to the corrective mask plane and the point source field from the image plane to the corrective mask plane each comprise incoherent light. ### Claim 9 A system comprising: a physical corrective optical element made by a process comprising: propagating, for each of one or more wavelengths, a point source field from an object plane to a corrective mask plane to determine a source field; propagating, for each of the one or more wavelengths, the point source field from an image plane to the corrective mask plane to determine an image field; determining, for each of the one or more wavelengths, a phase modulation field based on the source field and the image field; determining a multi-wavelength phase modulation field based on combining the phase modulation field for each of the one or more wavelengths; and fabricating the physical corrective optical element based on the multi-wavelength phase modulation field to deblur distorted images without having to deconvolve the image computationally. ### Claim 10 (depends on 9) The system of claim 9, wherein the modulation field for each of the one or more wavelengths is combined based on at least one of: super-positioning or random sampling. ### Claim 11 (depends on 9) The system of claim 9, further comprising: a display; and an image sensor disposed behind the display, wherein the optical element is disposed in front of the image sensor and the optical element deblurs optical blurring caused by the display. ### Claim 12 (depends on 11) The system of claim 11, wherein the optical element is disposed behind the display. ### Claim 13 (depends on 11) The system of claim 11, wherein the optical element is disposed spatially coincident with the display. ### Claim 14 (depends on 9) The system of claim 9, wherein for each of the one or more wavelengths the phase modulation field comprises the source field for that wavelength divided by the image field for that wavelength. ### Claim 15 (depends on 9) The system of claim 9, wherein the point source field from the object plane to the corrective mask plane and the point source field from the image plane to the corrective mask plane each comprise incoherent light. ### Claim 16 A method comprising: receiving, at an optical element of a device, light from an object external to the device; modulating, by the optical element, the light from the object, wherein the modulation by the optical element deblurs blurring caused by one or more components of the device without deconvolving the light from image computationally; and capturing, by an image sensor, the modulated light. ### Claim 17 (depends on 16) The method of claim 16, wherein the device comprises a computing device comprising: a display; the image sensor disposed behind the display; and the optical element disposed in front of the image sensor, wherein the optical element deblurs optical blurring caused by the display. ### Claim 18 (depends on 17) The method of claim 17, wherein the optical element is disposed behind the display. ### Claim 19 (depends on 17) The method of claim 17, wherein the optical element is disposed spatially coincident with the display. ### Claim 20 (depends on 16) The method of claim 16, further comprising displaying, on a display of the device, an image of the object as captured by the image sensor.