# US 2018/0024002 A1 · Method, electronic device and system for monitoring a skin surface condition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0024002 A1 - Document ID: US20180024002A1 - Status: Published application - Kind: A1 - Application number: 15/547,848 - Filed: 2016-02-18 - Published: 2018-01-25 - Earliest claimed: 2015-02-19 - Assignees: Sony Corporation - Applicants: Sony CORPORATION - Inventors: Alexander GATTO; Piergiorgio SARTOR; Ralf MUELLER - Web page: https://patentgrep.com/patent/US20180024002A1 ## CPC - G01J 1/429: {applied to measurement of ultraviolet light (using counting tubes G01T)} - G01J 1/0219: {Electrical interface; User interface} - G01J 1/4228: {arrangements with two or more detectors, e.g. for sensitivity compensation} - G01J 2001/0257: {portable} - G01J 2001/4266: {for measuring solar light} - 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) ## Abstract An electronic device including a processor configured to receive a first radiation measurement and determine a skin surface condition information based on the first radiation measurement. ## Claims ### Claim 1 Electronic device, comprising a processor configured to: receive a first radiation measurement; and determine a skin surface condition information based on the first radiation measurement. ### Claim 2 (depends on 1) Electronic device of claim 1, wherein the processor is further configured to receive a second radiation measurement, wherein the skin surface condition information is determined based on the first radiation measurement and the second radiation measurement. ### Claim 3 (depends on 1) Electronic device of claim 1, wherein the processor is configured so that determining the skin surface condition information includes: determining a skin type parameter of a user by comparing the first radiation measurement to a reference radiation measurement. ### Claim 4 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a location on a user's skin before or after applying sun cream to a surrounding area of the user's skin surrounding the location on the user's skin; the second radiation measurement corresponds to an ambient radiation; and the skin surface condition information is a time period, a required sun protection factor and/or a required amount of sun cream and/or a user information to stop sunbathing. ### Claim 5 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a location on a user's skin before or after applying sun cream to a surrounding area of the user's skin surrounding the location on the user's skin; and the second radiation measurement corresponds to an ambient radiation; and wherein determining the skin surface condition information includes: determining a skin type parameter of a user by comparing the first radiation measurement to a reference radiation measurement; and determining a time period by choosing the time period corresponding to the determined skin type parameter and the second radiation measurement from a data model indicating for various skin type parameters and for various second radiation measurements a corresponding time period. ### Claim 6 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a location on a user's skin before or after applying sun cream to a surrounding area of the user's skin surrounding the location on the user's skin; and the second radiation measurement corresponds to an ambient radiation; wherein the processor is further configured to repeatedly receive the second radiation measurement; and wherein determining the skin surface condition information includes: determining a radiation dose threshold based on the first radiation measurement; repeatedly accumulating the received second radiation measurements to obtain a radiation dose value; repeatedly comparing the obtained radiation dose value to the radiation dose threshold; and generating a user information to stop sunbathing, when the radiation dose value exceeds the radiation dose threshold. ### Claim 7 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a first location on a user's skin; the second radiation measurement corresponds to a radiation reflected from a second location on the user's skin within a surrounding area of the first location; and the skin surface condition information is information whether sun cream is applied to the second location. ### Claim 8 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a first location on a user's skin, wherein no sun cream is applied to a surrounding area of the user's skin surrounding the first location; the second radiation measurement corresponds to a radiation reflected from a second location on the user's skin within the surrounding area after applying sun cream to the surrounding area; and/or the skin surface condition information is a filter type of the applied sun cream, an actual sun protection factor and/or an actual amount of sun cream. ### Claim 9 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a first location on a user's skin, wherein no sun cream is applied to a surrounding area of the user's skin surrounding the first location; the second radiation measurement corresponds to a radiation reflected from a second location on the user's skin within the surrounding area after applying sun cream to the surrounding area; and determining the skin surface condition information includes: determining an actual sun protection factor by comparing the first radiation measurement to a reference radiation measurement, by comparing the second radiation measurement to the reference radiation measurement and by comparing the results thereof. ### Claim 10 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a first location on a user's skin, wherein no sun cream is applied to a surrounding area of the user's skin surrounding the first location; the second radiation measurement corresponds to a radiation reflected from a second location one user's skin within the surrounding area after applying sun cream to the surrounding area; and determining the skin surface condition information includes: extracting at two predetermined wavelengths a respective reflectance value from the first radiation measurement, extracting at the two predetermined wavelengths a respective reflectance value from the second radiation measurement, relating the reflectance values extracted from the first radiation measurement to each other, relating the reflectance values extracted from the second radiation measurement to each other; and comparing the results thereof to determine a filter type of the applied sun cream. ### Claim 11 (depends on 2) Electronic device of claim 2, wherein the processor is configured to receive a third radiation measurement, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a first location on a user's skin before applying sun cream to a surrounding area of the user's skin surrounding the first location; the second radiation measurement corresponds to a radiation reflected from a second location on the user's skin within the surrounding area after applying sun cream to the surrounding area; the third radiation measurement corresponds to an ambient radiation; and the skin surface condition information is a time period, a required sun protection factor and/or a required amount of sun cream and/or a user information to stop sunbathing; and wherein determining the skin surface condition information is further based on the third radiation measurement. ### Claim 12 (depends on 2) Electronic device of claim 2, wherein the processor is configured to receive a third radiation measurement, wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a first location on a user's skin before applying sun cream to a surrounding area of the user's skin surrounding the first location; the second radiation measurement corresponds to a radiation reflected from a second location on the user's skin within the surrounding area after applying sun cream to the surrounding area; and the third radiation measurement corresponds to an ambient radiation; wherein determining the skin surface condition information includes: determining a skin type parameter of the user by comparing the first radiation measurement to a reference radiation measurement; determining an actual sun protection factor based on the first radiation measurement and the second radiation measurement by comparing the first radiation measurement to a reference radiation measurement, by comparing the second radiation measurement to the reference radiation measurement and by comparing the results thereof; and determining a time period by choosing the time period corresponding to the determined skin type, the determined actual sun protection factor and the third radiation measurement from a data model indicating for various skin type parameters, for various sun protection factors and for various third radiation measurements a corresponding time period. ### Claim 13 (depends on 2) Electronic device of claim 2, wherein the processor is configured to repeatedly receive a third radiation measurement; wherein the processor is configured so that the first radiation measurement corresponds to a radiation reflected from a first location on a user's skin before applying sun cream to a surrounding area of the user's skin surrounding the first location; the second radiation measurement corresponds to a radiation reflected from a second location on the user's skin within the surrounding area after applying sun cream to the surrounding area; and the third radiation measurement corresponds to an ambient radiation; wherein determining the skin surface condition information includes: determining a skin type parameter of the user by comparing the first radiation measurement to a reference radiation measurement; determining an actual sun protection factor based on the first radiation measurement and the second radiation measurement by comparing the first radiation measurement to a reference radiation measurement, by comparing the second radiation measurement to the reference radiation measurement and by comparing the results thereof; determining a radiation dose threshold based on the skin type parameter and the sun protection factor; repeatedly accumulating the received third radiation measurements to obtain a radiation dose value; repeatedly comparing the obtained radiation dose value to the radiation dose threshold; and generating a user information to stop sunbathing, when the radiation dose exceeds the radiation dose threshold. ### Claim 14 (depends on 1) Electronic device of claim 1, wherein the processor is configured to receive two or more first radiation measurements each corresponding to a radiation reflected from different locations on a user's skin before or after applying sun cream to one or more surrounding areas of the user's skin surrounding the different locations on the user's skin; and choose the first radiation measurement of the two or more first radiation measurements which indicates the most sun sensitive location of the different locations, wherein determining the skin surface condition information is based on the chosen first radiation measurement. ### Claim 15 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that the first radiation measurement corresponds to a radiation having a first wavelength reflected from a location on a user's skin; the second radiation measurement corresponds to a radiation having a second wavelength reflected from the location on the user's skin; and determining the skin surface condition information includes: determining information, whether sun cream is applied, a filter type of the applied sun cream, an actual sun protection factor and/or an actual amount of sun cream based on a relation between the first radiation measurement and the second radiation measurement. ### Claim 16 (depends on 15) Electronic device of claim 15, wherein the processor is configured so that determining the skin surface condition information includes: determining information, whether sun cream is applied, a filter type of the applied sun cream by relating the radiation having the first wavelength to the radiation having the second wavelength and comparing the relation result thereof to a reference relation. ### Claim 17 (depends on 2) Electronic device of claim 2, wherein the processor is configured so that receiving the first radiation measurement and the second radiation measurement includes receiving the first radiation measurement and the second radiation measurement from a sensor arrangement, wherein the processor is configured to generate a first user message indicating a first invitation to the user to position the sensor arrangement so that the sensor arrangement detects the first radiation measurement and providing the first invitation to a user interface; and/or generate a second user message indicating a second invitation to the user to position the sensor arrangement so that the sensor arrangement detects the second radiation measurement and providing the second invitation to the user interface. ### Claim 18 (depends on 1) Electronic device of claim 1, wherein the processor is configured to receive environmental information, wherein the skin surface condition information is determined further based on the environmental information. ### Claim 19 (depends on 1) Electronic device of claim 1, wherein the processor is configured to receive radiation measurements from sensors located in personal devices. ### Claim 20 (depends on 2) Electronic device of claim 2, further comprising a sensor arrangement configured to detect the first radiation measurement and/or to detect the second radiation measurement and to provide the first radiation measurement and/or the second radiation measurement to the processor. ### Claim 21 (depends on 20) Electronic device of claim 20, wherein the sensor arrangement includes a spectral sensor and a light source or a spectral sensor. ### Claim 22 (depends on 2) Electronic device of claim 2, further comprising a storage configured to store the first radiation measurement and/or the second radiation measurement and to provide the first radiation measurement and/or the second radiation measurement to the processor. ### Claim 23 (depends on 2) Electronic device of claim 2, further comprising a user interface and/or a communication interface, wherein the processor is configured to generate a first user message indicating a first invitation to the user to position a sensor so that the sensor detects the first radiation measurement and/or to generate a second user message indicating a second invitation to the user to position a sensor so that the sensor detects the second radiation measurement and/or to generate a user information indicting the determined skin surface condition information to the user and/or to another user and to provide the first invitation signal, the second invitation signal and/or the information signal to the user interface, wherein the user interface is configured to output the first invitation, the second invitation and/or the determined skin surface condition information, and/or to provide the user information to the communication interface. ### Claim 24 (depends on 1) Electronic device of claim 1, wherein the electronic device is one selected from a smart phone, a tablet computer, a portable game console, a smart watch, an electronic wristband, smart glasses, an e-book reader or a mobile digital media player. ### Claim 25 (depends on 1) Electronic device of claim 1, further comprising a communication interface configured to receive radiation measurements received from sensors located in personal devices. ### Claim 26 Method, comprising: receiving a first radiation measurement; and determining a skin surface condition information based on the first radiation measurement.