# US 11,896,726 B1 · Interactive ultraviolet decontamination system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,726 B1 - Document ID: US11896726B1 - Status: Granted - Kind: B1 - Application number: 17/173,326 - Filed: 2021-02-11 - Granted: 2024-02-13 - Earliest claimed: 2021-02-11 - Assignees: Lockheed Martin Corporation - Applicants: Lockheed Martin Corporation - Inventors: Nicolas James Deshler; James G. Hawley; Donald George Polensky - Web page: https://patentgrep.com/patent/US11896726B1 ## CPC - A61L 2/10: Ultraviolet [UV] radiation - A61L 2/28: Devices for testing the effectiveness or completeness of sterilisation or disinfection, e.g. indicators which change colour - G01J 1/429: {applied to measurement of ultraviolet light (using counting tubes G01T)} - G01J 1/44: Electric circuits {(for command of an exposure part G03B7/02)} - G06T 11/00: Two-dimensional [2D] image generation - A61L 2/24: Apparatus using programmed or automatic operation - A61L 2103/75: Room floors or walls - A61L 2202/11: Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps - A61L 2202/14: Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs - A61L 2202/16: Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract Provided herein are various enhanced techniques for ultraviolet decontamination via emission of ultraviolet radiation and tracking emission exposure. An example method includes obtaining an emission characteristic for a radiation source. The method also includes capturing a depth map of a scene comprised of one or more objects and processing the depth map and an emission characteristic to determine an indication of exposure levels of the one or more objects to radiation emitted by the radiation source. An exposure visualization is generated based at least on the indication of exposure levels and displaying the exposure visualization. ## Claims ### Claim 1 A method comprising: obtaining an emission characteristic for a radiation source; capturing a depth map of a scene comprised of one or more objects; processing the depth map and the emission characteristic to determine an indication of exposure levels of the one or more objects to radiation emitted by the radiation source; generating an exposure visualization based at least on the indication of exposure levels; and displaying the exposure visualization. ### Claim 2 (depends on 1) The method of claim 1, wherein the radiation source comprises at least one among an ultraviolet-A, ultraviolet-B, and ultraviolet-C illumination source. ### Claim 3 (depends on 1) The method of claim 1, wherein the radiation source comprises a reflector with an edge-ray design configured to provide a uniform illuminance distribution to at least a portion of the scene. ### Claim 4 (depends on 1) The method of claim 1, wherein the emission characteristic for the radiation source comprises at least an indication of an intensity of the radiation source, an indication of a remaining operating life of the radiation source, and an illuminance spatial distribution. ### Claim 5 (depends on 1) The method of claim 1, comprising: processing an illuminance spatial distribution of the emission characteristic and distances between the radiation source and the one or more objects to determine the indication of the exposure levels of the one or more objects. ### Claim 6 (depends on 1) The method of claim 1, wherein the exposure visualization comprises an exposure heatmap overlaid on the depth map of the scene. ### Claim 7 (depends on 1) The method of claim 1, wherein obtaining the emission characteristic for the radiation source further comprises obtaining an indication of an illuminance spatial distribution of the radiation source. ### Claim 8 An apparatus, comprising: a radiation source having an emission characteristic; an imaging sensor configured to capture a depth map of a scene comprised of one or more objects; a processor configured to determine an indication of exposure levels of the one or more objects to radiation emitted by the radiation source by at least processing the emission characteristic against the depth map; the processor configured to generate an exposure visualization based at least on the indication of exposure levels; and a user interface configured to display the exposure visualization. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the radiation source comprises at least one among an ultraviolet-A, ultraviolet-B, and ultraviolet-C illumination source. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein the radiation source comprises a reflector with an edge-ray design configured to provide a uniform illuminance distribution to at least a portion of the scene. ### Claim 11 (depends on 8) The apparatus of claim 8, wherein the emission characteristic for the radiation source comprises at least an indication of an intensity of the radiation source, an indication of a remaining operating life of the radiation source, and an illuminance spatial distribution. ### Claim 12 (depends on 8) The apparatus of claim 8, wherein to determine the indication of exposure levels of the one or more objects, the processor is further configured to: process an illuminance spatial distribution of the emission characteristic and distances between the radiation source and the one or more objects. ### Claim 13 (depends on 8) The apparatus of claim 8, wherein the exposure visualization comprises an exposure heatmap overlaid on the depth map of the scene. ### Claim 14 A computing apparatus, comprising: one or more computer-readable storage media; a processing system operatively coupled with the one or more computer-readable storage media; and program instructions stored on the one or more computer-readable storage media that, based on being read and executed by the processing system, direct the computing apparatus to at least: obtain an emission characteristic for a radiation source; instruct an imaging device to capture a depth map of a scene comprised of one or more objects; process an indication of the depth map and the emission characteristic to determine an indication of exposure levels of the one or more objects to radiation emitted by the radiation source; generate an exposure visualization based at least on the indication of exposure levels; and transfer an indication of the exposure visualization for display to a user. ### Claim 15 (depends on 14) The computing apparatus of claim 14, wherein the radiation source comprises at least one among an ultraviolet-A, ultraviolet-B, and ultraviolet-C illumination source. ### Claim 16 (depends on 14) The computing apparatus of claim 14, wherein the radiation source comprises a reflector with an edge-ray design configured to provide a uniform illuminance distribution to at least a portion of the scene. ### Claim 17 (depends on 14) The computing apparatus of claim 14, wherein the emission characteristic for the radiation source comprises at least an indication of an intensity of the radiation source, an indication of a remaining operating life of the radiation source, and an illuminance spatial distribution. ### Claim 18 (depends on 14) The computing apparatus of claim 14, wherein to determine the indication of the exposure levels of the one or more objects, the program instructions further direct the computing apparatus to at least: process an illuminance spatial distribution of the emission characteristic and distances between the radiation source and the one or more objects. ### Claim 19 (depends on 14) The computing apparatus of claim 14, wherein the exposure visualization comprises an exposure heatmap overlaid on the depth map of the scene. ### Claim 20 (depends on 14) The computing apparatus of claim 14, wherein to obtain the emission characteristic for the radiation source, the program instructions further direct the computing apparatus to at least: obtain an indication of an illuminance spatial distribution of the radiation source.