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公开(公告)号：US20240164647A1
公开(公告)日：2024-05-23
申请号：US18515292
申请日：2023-11-21
发明人： Georg WIORA , Carina REBLE , Diana KHAZAKA-OHMANN , Georg KHAZAKA
CPC分类号： A61B5/0075 , A61B5/445 , A61K49/0006 , G01N21/33
摘要： Described herein is a protection factor evaluation system for determining a protection factor of a skin protection agent with a radiation source with exactly one LED, a detector unit with exactly one photodiode, a control unit and an evaluation unit. Furthermore, the invention relates to a method for determining a sun protection factor of a skin protection agent with the method steps of emitting radiation from precisely one LED of a radiation source, detecting remitted radiation with precisely one photodiode of a detector unit and evaluating the protection factor in an evaluation wavelength range, wherein the protection factor of the protection agent is evaluated from the radiation and a transmission spectrum, and wherein the data of the transmission spectrum for determining the protection factor are in silico and/or in vitro data.
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公开(公告)号：US20230273118A1
公开(公告)日：2023-08-31
申请号：US18005604
申请日：2021-07-14
发明人： Carina REBLE , Georg WIORA
IPC分类号： G01N21/31
CPC分类号： G01N21/31
摘要： The invention describes a method for determining sun protection factors of sunscreen agents with a spectroscopic measurement comprising the following steps: first activation of several radiation sources of a radiation source device having at least two radiation sources, first emission of radiation from the at least two radiation sources, detection of the radiation diffusely reflected by a measuring body, determination of the sensor sensitivity ST of a detector, determining the target exposure time tZ and/or the target light power lZ for the at least two radiation sources, second driving of a plurality of radiation sources of the radiation source device having at least two radiation sources, second emission of radiation from the at least two radiation sources with a target exposure time tZ and/or the target light power lZ of the first and the second radiation source of the radiation source device.
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公开(公告)号：US20220054018A1
公开(公告)日：2022-02-24
申请号：US17599711
申请日：2020-03-27
发明人： Michael HOSS , Georg WIORA
摘要： In a measuring device for measuring an intensive measurand, including at least one measuring chamber having at least one opening, the opening being placeable on the body to be examined. At least three sensors for measuring the intensive measurand are arranged in the measuring chamber, the sensors being arranged at different distances from the body to be examined during measurement. An evaluation device being provided which receives the values measured by the sensors and determines a total value for the intensive measured variable from the at least three measured values as well as a substance or energy diffusion rate.
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4.发明授权公开(公告)号：US11137347B2
公开(公告)日：2021-10-05
申请号：US15769892
申请日：2016-10-20
发明人： Jürgen Helfmann , Ingo Gersonde
摘要： The invention is used to ascertain a sun protection factor for light, for example for cosmetics and sunscreens for which a sun protection factor (SPF) is specified. Two measurements of the light backscattering on the skin surface are carried out in vivo or in vitro or on skin models (animal skin models or artificial skin models) before and after applying the radiation protection means onto the skin, and the sun protection factor is ascertained therefrom. In contrast to standard methods used until now, the distance between the lighting surface and the detection surface on the skin is ascertained for the irradiation path of the measurement method. The skin lighting dose used during the measurement lies below harmful limits. The sun protection factor can be ascertained according to previous standards or for additional wavelengths or wavelength ranges (e.g. UVA, VIS, NIR, IR).
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5.发明申请公开(公告)号：US20180321139A1
公开(公告)日：2018-11-08
申请号：US15769892
申请日：2016-10-20
发明人： JÜRGEN HELFMANN , INGO GERSONDE
CPC分类号： G01N21/33 , A61B5/0075 , A61B5/0077 , A61B5/0082 , A61B5/441 , G01N21/474 , G01N21/49 , G01N2021/4742
摘要： The invention is used to ascertain a sun protection factor for light, for example for cosmetics and sunscreens for which a sun protection factor (SPF) is specified. Two measurements of the light backscattering on the skin surface are carried out in vivo or in vitro or on skin models (animal skin models or artificial skin models) before and after applying the radiation protection means onto the skin, and the sun protection factor is ascertained therefrom. In contrast to standard methods used until now, the distance between the lighting surface and the detection surface on the skin is ascertained for the irradiation path of the measurement method. The skin lighting dose used during the measurement lies below harmful limits. The sun protection factor can be ascertained according to previous standards or for additional wavelengths or wavelength ranges (e.g. UVA, VIS, NIR, IR).
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