WO2020232047A1 - Dispositif de spectroscopie par réflectance diffuse hybride pour mesurer un spf - Google Patents
Dispositif de spectroscopie par réflectance diffuse hybride pour mesurer un spf Download PDFInfo
- Publication number
- WO2020232047A1 WO2020232047A1 PCT/US2020/032564 US2020032564W WO2020232047A1 WO 2020232047 A1 WO2020232047 A1 WO 2020232047A1 US 2020032564 W US2020032564 W US 2020032564W WO 2020232047 A1 WO2020232047 A1 WO 2020232047A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sunscreen
- skin
- uva
- leds
- vitro
- Prior art date
Links
- 238000001055 reflectance spectroscopy Methods 0.000 title claims abstract description 15
- 230000000475 sunscreen effect Effects 0.000 claims abstract description 109
- 239000000516 sunscreening agent Substances 0.000 claims abstract description 109
- 238000000862 absorption spectrum Methods 0.000 claims abstract description 94
- 238000000338 in vitro Methods 0.000 claims abstract description 66
- 238000001727 in vivo Methods 0.000 claims abstract description 42
- 238000005259 measurement Methods 0.000 claims description 34
- 238000002835 absorbance Methods 0.000 claims description 23
- 239000013307 optical fiber Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 13
- 230000005284 excitation Effects 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- RFVFQQWKPSOBED-PSXMRANNSA-N 1-myristoyl-2-palmitoyl-sn-glycero-3-phosphocholine Chemical group CCCCCCCCCCCCCCCC(=O)O[C@@H](COP([O-])(=O)OCC[N+](C)(C)C)COC(=O)CCCCCCCCCCCCC RFVFQQWKPSOBED-PSXMRANNSA-N 0.000 claims description 8
- 238000011481 absorbance measurement Methods 0.000 claims description 2
- 230000000881 depressing effect Effects 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 abstract description 17
- 206010042496 Sunburn Diseases 0.000 abstract description 10
- 230000001939 inductive effect Effects 0.000 abstract description 3
- 210000003491 skin Anatomy 0.000 description 69
- 230000005855 radiation Effects 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 9
- 238000005286 illumination Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 244000089486 Phragmites australis subsp australis Species 0.000 description 4
- 230000037338 UVA radiation Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 230000037072 sun protection Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012623 in vivo measurement Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 208000000453 Skin Neoplasms Diseases 0.000 description 1
- 238000001720 action spectrum Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- XNEFYCZVKIDDMS-UHFFFAOYSA-N avobenzone Chemical compound C1=CC(OC)=CC=C1C(=O)CC(=O)C1=CC=C(C(C)(C)C)C=C1 XNEFYCZVKIDDMS-UHFFFAOYSA-N 0.000 description 1
- 229960005193 avobenzone Drugs 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000010237 hybrid technique Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009759 skin aging Effects 0.000 description 1
- 201000000849 skin cancer Diseases 0.000 description 1
- 210000000434 stratum corneum Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0075—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0218—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using optical fibers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/027—Control of working procedures of a spectrometer; Failure detection; Bandwidth calculation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
- G01J2003/102—Plural sources
- G01J2003/104—Monochromatic plural sources
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
- G01J2003/102—Plural sources
- G01J2003/106—Plural sources the two sources being alternating or selectable, e.g. in two ranges or line:continuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J2003/425—Reflectance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
- G01N2021/4742—Details of optical heads therefor, e.g. using optical fibres comprising optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/02—Mechanical
- G01N2201/022—Casings
- G01N2201/0221—Portable; cableless; compact; hand-held
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/062—LED's
Definitions
- This disclosure relates to a diffuse reflectance spectroscopy device capable of measuring UVA protection factor and SPF of sunscreen. More particularly, this disclosure relates to a handheld LED-based device that utilizes hybrid diffuse reflectance spectroscopy to determine the UVA protection factor and SPF of sunscreen applied to skin.
- the UVA wavelengths are 320-400 nm. In some embodiments, an incremental step of UV light sequentially emitted from the plurality of LEDs is 5-20 nm.
- the computer is a smart phone. In some embodiments, the computer sends the SPF of the sunscreen to the handheld device for display.
- a method comprises: illuminating an area of skin with a plurality of LEDs, wherein each LED emits light at a different UVA wavelength; collecting first reflectance signals re-emitted from the area of skin; applying sunscreen to the area of skin; illuminating the area of skin with sunscreen with the plurality of LEDs; collecting second reflectance signals re-emitted from the area of skin with sunscreen; determining an in vivo diffuse reflectance spectroscopy UVA absorbance spectrum from the first and second reflectance signals; obtaining an in vitro UV absorbance spectrum for the sunscreen from a library comprising in vitro UV absorbance spectrums for a plurality of sunscreens; grafting the in vitro UV absorbance spectrum to the in vivo UVA absorbance spectrum to obtain a full UV absorbance spectrum; determining the SPF of the sunscreen using the full UV absorbance spectrum; and displaying the SPF of the sunscreen.
- the computer or smart phone can obtain the in vitro UV absorbance spectrum information for the specific sunscreen that was applied to the skin from the server. After all the calculations have been completed, the computer or smart phone can send the SPF information to the LED DRS device for display.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Dermatology (AREA)
- Multimedia (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
La présente invention concerne un système et un dispositif capables de prédire le SPF in vivo pour un produit d'écran solaire donné sans induire de coup de soleil sur un individu. Le système utilise des DEL pour mesurer le spectre d'absorbance UVA sur la peau à l'aide d'une spectroscopie par réflectance diffuse et fixe le spectre d'absorbance UVB in vitro au spectre d'absorbance UVA pour prédire le SPF in vivo de l'écran solaire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962849062P | 2019-05-16 | 2019-05-16 | |
| US62/849,062 | 2019-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020232047A1 true WO2020232047A1 (fr) | 2020-11-19 |
Family
ID=70922152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2020/032564 WO2020232047A1 (fr) | 2019-05-16 | 2020-05-13 | Dispositif de spectroscopie par réflectance diffuse hybride pour mesurer un spf |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2020232047A1 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3865052A1 (fr) * | 2020-02-11 | 2021-08-18 | Courage + Khazaka Electronic GmbH | Système de mesure et procédé de mesure pour déterminer le facteur de protection d'une crème solaire |
| DE102020119026A1 (de) | 2020-07-17 | 2022-01-20 | Courage + Khazaka Electronic Gmbh | Messsystem und Messverfahren |
| WO2022216647A1 (fr) * | 2021-04-07 | 2022-10-13 | The Procter & Gamble Company | Systèmes et procédés d'imagerie par ultraviolets |
| EP4372364A1 (fr) * | 2022-11-21 | 2024-05-22 | Courage + Khazaka electronic GmbH | Dispositif et procédé de détermination d'un facteur de protection |
| DE102022130758A1 (de) | 2022-11-21 | 2024-05-23 | Courage + Khazaka Electronic Gmbh | Messsystem und messverfahren |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170356848A1 (en) * | 2014-11-25 | 2017-12-14 | Ge Healthcare Bio-Sciences Ab | Intergration of Fluorescence Detection Capability into Light Absorbance Measurement Apparatus |
| US20180008172A1 (en) * | 2015-03-19 | 2018-01-11 | The Regents Of The University Of Michigan | System for analyzing tissue |
| US20180024002A1 (en) * | 2015-02-19 | 2018-01-25 | Sony Corporation | Method, electronic device and system for monitoring a skin surface condition |
| US20180321139A1 (en) * | 2015-10-20 | 2018-11-08 | Courage + Khazaka Electronic Gmbh | Optically ascertaining the sun protection factor of sunscreens or other radiation protection agents |
| US20190125258A1 (en) * | 2017-10-31 | 2019-05-02 | L'oreal | Sunscreen formulation and systems for sun protection and related methods of use |
-
2020
- 2020-05-13 WO PCT/US2020/032564 patent/WO2020232047A1/fr active Application Filing
Patent Citations (5)
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| US20170356848A1 (en) * | 2014-11-25 | 2017-12-14 | Ge Healthcare Bio-Sciences Ab | Intergration of Fluorescence Detection Capability into Light Absorbance Measurement Apparatus |
| US20180024002A1 (en) * | 2015-02-19 | 2018-01-25 | Sony Corporation | Method, electronic device and system for monitoring a skin surface condition |
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| US20190125258A1 (en) * | 2017-10-31 | 2019-05-02 | L'oreal | Sunscreen formulation and systems for sun protection and related methods of use |
Non-Patent Citations (7)
| Title |
|---|
| ANONYMOUS: "Suche - BfR", 1 January 2020 (2020-01-01), XP055708145, Retrieved from the Internet <URL:https://www.bfr.bund.de/de/suche.html?search query!=sun+protection+factor> [retrieved on 20200623] * |
| EDUARDO RUVOLO JR. ET AL., PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE, vol. 25, 2009, pages 298 - 304 |
| EDUARDO RUVOLO JR. ET AL., PHOTODERMATOLOGY, PHOTOIMMUNOLOGY, & PHOTOMEDICINE, vol. 30, 2014, pages 202 - 211 |
| EDUARDO RUVOLO JUNIOR ET AL: "New noninvasive approach assessing in vivo sun protection factor (SPF) using diffuse reflectance spectroscopy (DRS) and in vitro transmission", PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE, vol. 30, no. 4, 19 August 2014 (2014-08-19), United States, United Kingdom, pages 202 - 211, XP055339170, ISSN: 0905-4383, DOI: 10.1111/phpp.12105 * |
| GEORG WIORA ET AL: "Development of a fast non-invasive in vivo measurement of UVA-PF and SPF with new Diffuse Reflectance Spectroscopy device", 30 September 2019 (2019-09-30), XP055708127, Retrieved from the Internet <URL:https://www.skinobs.com/news/wp-content/uploads/2019/11/Development-of-a-fast-non-invasive-in-vivo-measurement-full-paper.CK_.pdf> [retrieved on 20200623] * |
| J LADEMANN ET AL: "Non-invasive sun protection factor determination using LED light", 16 October 2018 (2018-10-16), XP055708144, Retrieved from the Internet <URL:https://mobil.bfr.bund.de/cm/343/non-invasive-sun-protection-factor-determination-using-LED-light.pdf> [retrieved on 20200623] * |
| MATHIAS ROHR ET AL., SKIN PHARMACOLOGY AND PHYSIOLOGY, vol. 31, 2018, pages 220 - 228 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3865052A1 (fr) * | 2020-02-11 | 2021-08-18 | Courage + Khazaka Electronic GmbH | Système de mesure et procédé de mesure pour déterminer le facteur de protection d'une crème solaire |
| DE102020119026A1 (de) | 2020-07-17 | 2022-01-20 | Courage + Khazaka Electronic Gmbh | Messsystem und Messverfahren |
| WO2022216647A1 (fr) * | 2021-04-07 | 2022-10-13 | The Procter & Gamble Company | Systèmes et procédés d'imagerie par ultraviolets |
| EP4372364A1 (fr) * | 2022-11-21 | 2024-05-22 | Courage + Khazaka electronic GmbH | Dispositif et procédé de détermination d'un facteur de protection |
| DE102022130758A1 (de) | 2022-11-21 | 2024-05-23 | Courage + Khazaka Electronic Gmbh | Messsystem und messverfahren |
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