Abstract: 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.

Abstract: 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.

Abstract: 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).

Abstract: An optical sensor device which measures in a spatially resolving manner is disclosed. In order to devise such a sensor device with which a contacting measurement of the article to be measured can be carried out and which can be mass-produced, the sensor device is designed such that a transfer of the calibration onto individual sensor devices is possible with high accuracy. According to certain embodiments of the design of the sensor device and of the evaluation methods, interferences with the measurement of the amount of the target substance are minimized.

Abstract: 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).

Abstract: A method for determining the skin age of consumers and a device suitable for implementing the method. The skin age is determined by capturing a predetermined skin area optoelectronically. The image data obtained during capturing the skin area are stored in an intermediate memory. Thereafter the color distribution and/or the color space are determined by means of image analysis. The determination is performed integratively, the result also being stored in an intermediate memory.

Abstract: A method for determining the skin age of consumers and a device suitable for implementing the method. The skin age is determined by capturing a predetermined skin area optoelectronically. The image data obtained during capturing the skin area are stored in an intermediate memory. Thereafter the color distribution and/or the color space are determined by means of image analysis. The determination is performed integratively, the result also being stored in an intermediate memory.

Abstract: In a system for measuring changes in skin parameters of living beings on a skin surface to be examined as a function of the residence time of a substance, comprising at least one measuring apparatus for measuring the skin parameters, it is provided that the measuring apparatus is coupled with at least one dispenser means which when operated dispenses a substance associated with this dispenser means and applicable on the skin surface to be examined, the measuring apparatus recording in a memory the time of actuation of the dispenser means and the time of the at least one measurement of the skin parameters for the detection of the residence time of the substance, as well as the skin parameters measured which are associated with the time of measurement.

Abstract: The invention concerns a measuring device for determining the secretion of the sebum from the skin using a microporous, water-repellent, sebum-absorbing opaque foil (4) which, on contact with the skin, can absorb sebum secreted by the surface of the skin, the transparency of the foil (4) being a measure of the absorbed sebum. In the edge region the sebum-absorbing foil (4) is attached to a carrier (2) which is provided with a window or is transparent in the area of the foil (4) to be brought into contact with the surface of the skin.

Abstract: In a device for measuring a three-dimensional surface structure, in particular skin folds of a human skin surface (9), comprising a transparent support plate (2) for receiving initially liquid silicone material (3) for a silicone impression of the measurement surface and comprising an analyzing unit for analyzing the surface structure of the impression, it is provided, according to the invention, that the support plate (2) comprises a measurement zone (4) which is held at a given distance from the measurement surface (9), that the silicone material (3) to be introduced into the measurement zone (4) is uniformly colored, and that the support plate (2) comprises at least one drainage channel (10) for excess silicone material (3) leading away from the measurement zone (4). The analysis of the silicone impression is effected via a light intensity measurement of the light absorption of the silicone impression.

Abstract: This device for treating skin conditions with galvanotherapy features a DC power supply, one pole of which is connected to a central pin electrode. The other pole is connected either to several counter-electrodes arranged around the central electrode, or to a single counter-electrode shaped to surround the electrode. The electrode and counter-electrode(s) are pressed against the skin, and power is applied to them, treating the area of skin within the pattern defined by the counter-electrode(s) with galvanotherapy. It is possible to treat various sizes and patterns of skin conditions by specifying an appropriate counter-electrode pattern.

Abstract: A device for measuring the elastic and elasticoviscous deformability of skin a measuring probe (1) is provided that exerts pressure on the skin surface (2) in a measuring probe channel (3), a light barrier (4) being disposed in the region of the measuring probe channel (3), the measured length 7 of which light barrier extending transversally to the measuring probe channel (3) in the region of the outlet (5) thereof. The change in light intensity serves as a measure for the deformation of the skin surface.