WO2018104089A1 - Procédé et dispositif pour déterminer un état cutané et procédé pour déterminer un produit cosmétique pour traiter la peau - Google Patents

Procédé et dispositif pour déterminer un état cutané et procédé pour déterminer un produit cosmétique pour traiter la peau Download PDF

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Publication number
WO2018104089A1
WO2018104089A1 PCT/EP2017/080467 EP2017080467W WO2018104089A1 WO 2018104089 A1 WO2018104089 A1 WO 2018104089A1 EP 2017080467 W EP2017080467 W EP 2017080467W WO 2018104089 A1 WO2018104089 A1 WO 2018104089A1
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WIPO (PCT)
Prior art keywords
skin
skin condition
determining
various embodiments
data processing
Prior art date
Application number
PCT/EP2017/080467
Other languages
German (de)
English (en)
Inventor
Andreas Bock
Thomas Welss
Original Assignee
Henkel Ag & Co. Kgaa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel Ag & Co. Kgaa filed Critical Henkel Ag & Co. Kgaa
Publication of WO2018104089A1 publication Critical patent/WO2018104089A1/fr

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Classifications

    • 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
    • A61B5/443—Evaluating skin constituents, e.g. elastin, melanin, water
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/005—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms for selecting or displaying personal cosmetic colours or hairstyle
    • 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
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D2044/007—Devices for determining the condition of hair or skin or for selecting the appropriate cosmetic or hair treatment

Definitions

  • Various embodiments generally relate to a method and apparatus for determining a skin condition and a method for determining a skin treatment cosmetic product.
  • Healthy and young looking skin may have a small pored, taut appearance. Normal skin may feel supple and neither too dry nor too fat.
  • dry skin may appear flaky, rough, and / or sensitive to external influences. Often, older people may be affected by dry skin.
  • Dry skin may be due, for example, to a disruption of a barrier function of the skin due to an inappropriate amount of skin lipids and / or due to a wrong composition of the skin lipids.
  • oily skin which may occur, for example, particularly in the post-pubertal years, e.g. especially on the face, there may be an excess of skin lipids on the skin surface. This can promote the growth of microorganisms, which can lead to impure skin.
  • the oily skin may appear coarse-pored and shiny.
  • SWIR short-wave infrared range
  • an oxygen saturation of arterial blood can be determined.
  • This can be used in a medical field, for example to monitor patients (possibly also in the home), to avoid altitude sickness, in sleep medicine (for a diagnosis of sleep apnea syndrome) and / or in sports medicine, and if necessary also in the private sector.
  • a device for determining a skin condition of a user may be provided.
  • the device may include a cheap, small (eg, portable) sensor (also referred to as a meter) that may be applied to a (live) user, such as the home user, a cosmetics store, and / or a beauty salon.
  • the sensor may, in various embodiments, have a size which allows it to be easily accommodated in a hand or trouser pocket, for example with an area of less than 36 cm 2 and a thickness of less than 2 cm.
  • the senor can be set up to record a spectrum and / or an image of the user's skin, for example in the SWIR range, in the near-infrared (NIR) range and / or in a wavelength range of visible light (VIS range).
  • at least one skin conditional parameter may be determined, for example a content of a substance causing absorption in the skin of the user.
  • a skin condition of the user can be determined in various exemplary embodiments.
  • levels of several substances in the skin of the user can be determined as a plurality of skin condition parameters taken and / or used in relation to each other can be used to determine a skin condition of the user.
  • a method and apparatus for determining a skin condition may be provided.
  • at least one skin condition parameter can be determined in various exemplary embodiments.
  • the device, the method, and / or the at least one skin condition determined by the device or method can be used to determine the needs of the skin of the user.
  • a user is to be enabled to find specific products and / or to obtain grooming suggestions that can be tailored to the individual needs of the user's skin.
  • the SWIR wavelength range may be due to, e.g. be suitable by means of absorption characteristics, determinable parameters for an analysis of the skin, for example in a cosmetic context.
  • a collagen content and / or a water content of the skin can be determined, for a care of specific skin types (eg dry skin, oily skin), a lipid content and / or a water content of the skin can be determined, and / or An oxygen saturation of the skin (for example of hemoglobin in the blood in the skin) can be determined, because this can be reduced, for example in the presence of dark circles under the eyes.
  • the at least one skin conditional parameter may have an oxygen saturation, a water content, a lipid content, a lipid composition, a collagen content, or the like.
  • the at least one skin condition parameter can be used individually in various exemplary embodiments in order to determine a skin condition. In various embodiments, several of the determined skin condition parameters may be used in combination to provide one, e.g. to determine a single, skin condition.
  • a software for example an app, can be used in various exemplary embodiments, which can be installed, for example, on a portable data processing device.
  • the measuring device which may have, for example, a spectrometer and / or a camera, for example for the SWIR range and / or the range of visible light, may be connected to the data processing device or integrated therein.
  • cosmetically relevant parameters of the skin can be measured, for example a water content (ie a moisture), a lipid amount, a lipid composition, a collagen amount and / or structure, an oxygen saturation of the skin, which allows conclusions to be drawn on a microcirculation of the skin important factor for a skin color, and / or another cosmetically relevant parameter.
  • the determined parameters as values (eg with arbitrary units), as a verbal message, as a graphical representation, o.ä. be presented or communicated.
  • At least one cosmetic product may be recommended to the user based on the determined skin condition.
  • the cosmetic product may be capable of maintaining or improving the skin condition of the user (e.g., increasing the oxygen and / or moisture content of the skin).
  • the cosmetic product may comprise a cream, a lotion, an ointment, an oil, a soap or the like.
  • product recommendations can be derived for individually fitting care products and / or individual care instructions for the user.
  • the product recommendations and / or care instructions may be provided, for example, by software, e.g. an app.
  • the user may be allowed to purchase the recommended product.
  • stores the software / App which determines the product recommendation and / or the care instructions and a corresponding request from the user and / or sends the request to a retail company, which sells the recommended product.
  • the user can also be offered further information on the purchase. This more detailed information may refer to more detailed care and application notes.
  • the user may be specifically communicated (visually or verbally) where he can purchase the recommended product (e.g., retail location with a specific address).
  • the software / app that determines the skin condition parameter and / or the skin condition may be the same that determines the product recommendation and / or the care instructions.
  • different software programs / apps may be used for a portion of the various operations or all of the various operations (determining the at least one skin condition parameter, determining the skin condition, determining a product recommendation, determining a caregiving instruction, initiating a purchase transaction).
  • a treatment success in a cosmetic treatment which may have a positive effect on the determined skin condition parameters or the determined skin condition, can be monitored.
  • the software / app may control and / or track the Allow results by means of a representation (eg a graphical representation) of the measurement results over time.
  • information may also be used regarding general health, skin condition, dietary habits, and other user behaviors (e.g., daily outdoor / sun / water dwell, smoking habits, etc.), e.g. by means of the software / app.
  • literature data may be used to assess suitability of a care product and / or a care indication for maintaining a skin having a given skin condition.
  • each skin condition of a plurality of skin conditions may or may not be associated with a quality score.
  • a care product and / or a care indication may be judged suitable for a skin condition when it is expected, e.g. based on literature data, test results, or empirical values, that the user's skin condition is maintained or changed to a skin condition with a higher quality value in the case of (for example, regular) application of the care product and / or the care advice.
  • an assessment of a suitability of a care product to improve a skin condition may be confirmed or modified by including experience values of other users with the same or a similar skin condition, for example, experience with regard to a treatment outcome. This can make it possible for the user to always receive an optimal recommendation.
  • the cosmetic treatment may in various embodiments have the goal to increase skin hydration and / or to improve a collagen quantity and / or structure, and / or an oxygen saturation of the skin and / or its microcirculation.
  • efficacy of (e.g., cosmetic) treatment may be better understood, thereby facilitating or facilitating selection of an individually suitable product.
  • a motivation of a user can be increased to carry out a cosmetic treatment in the longer term, for example by means of a comparison with other users, eg via information about treatment success provided by the other users.
  • a method for determining a skin condition may include: determining at least one skin condition parameter comprising: during exposure of a user's skin to visible light and / or near infrared light, capturing a spectrum, and / or imaging at least a portion of the visible light and / or the near infrared light; which has interacted with the skin, wherein the exposing and recording can be done by means of a portable device, comparing at least one comparison region of the spectrum and / or the at least one image with calibration spectra and / or calibration images obtained for a plurality of calibration skin samples, and determining the at least a skin condition parameter including a result of the comparison, and determining the skin condition using the at least one skin condition parameter.
  • determining the at least one skin condition parameter may include determining a substance content and / or determining a ratio of substance contents.
  • the comparison region may have at least one absorption wavelength of the at least one substance whose content and / or its ratio of contents is determined.
  • the at least one skin conditional parameter may include at least one of a group of skin condition parameters, the group comprising: a water content, a lipid content, a lipid composition based on a plurality of lipid contents, a collagen content, a collagen structure, and an oxygen saturation.
  • the at least one skin condition parameter may include a plurality of skin condition parameters.
  • determining the skin condition may include determining a single skin condition including the plurality of skin condition parameters.
  • the visible light and / or the near infrared light may have electromagnetic radiation in a range of 380 nm to 2500 nm. In various embodiments, the visible light and / or near-infrared light may comprise electromagnetic radiation in a range of 380 nm to 780 nm, and the at least one skin condition parameter may have oxygen saturation.
  • the visible light and / or near-infrared light may comprise electromagnetic radiation in a range of 380 nm to 2000 nm, and the at least one skin condition parameter may have oxygen saturation, water content, lipid content, and / or collagen content.
  • the visible light and / or near-infrared light may have electromagnetic radiation in a range of 1000 nm to 2000 nm
  • the at least one skin condition parameter may have a water content, a lipid content, and / or a collagen content.
  • exposure of skin may include exposing skin to a plurality of skin areas of the user.
  • the plurality of skin areas may include at least one facial skin area and at least one body skin area.
  • the portable device may be integrated with a portable computing device or coupled to a portable computing device.
  • the integrated unit may be coupled to the portable data processing device by means of wireless data transmission, wherein the portable data processing device may be configured to determine the at least one skin condition parameter by initiating the determination, by an external data processing device, the at least one skin condition parameter, and / or at least one skin condition, and wherein the apparatus may further be configured to receive the at least one determined skin condition parameter and / or the at least one skin condition and to provide the user with the portable computing device.
  • the external computing device may be a cloud.
  • a method of determining a skin care cosmetic product comprising: determining a skin condition according to various embodiments and determining the cosmetic product based on the determined skin condition and a database having a plurality of skin conditions; a plurality of associated cosmetic products, wherein each skin condition of the plurality of skin conditions at least one suitable cosmetic product may be assigned.
  • each skin condition may be assigned a quality score
  • the cosmetic product may be suitable for at least one skin condition of the plurality of skin conditions, based on stored experience with the cosmetic product, to improve or maintain the skin condition quality score.
  • the method may further include updating the database based on new experience from a plurality of users.
  • determining the at least one skin condition parameter and / or determining the skin condition may include transmitting the spectrum and / or the at least one map and / or the result of the comparison to an external computing device and receiving the skin condition parameter and / or the skin condition ,
  • a device for determining a skin condition may include: a portable light source for exposing skin to light, the light having visible light and / or near-infrared light; a portable recording device, the recording device having a spectrometer for recording at least one spectrum and / or a camera for recording at least one image of at least part of the visible light and / or the near infrared light which has interacted with the skin, and a portable one A data processing apparatus, wherein the portable data processing apparatus may be configured to determine at least one skin condition parameter based on the acquired spectrum and / or the captured image, wherein the portable data processing apparatus may be configured to determine a skin condition based on the at least one skin condition parameter.
  • the light source and the receptacle may form an integrated unit.
  • the light source and / or the recording device may form an integrated unit with the portable data processing device.
  • the at least one image may comprise a plurality of images, and the portion of the visible light may have a different wavelength range for each image of the plurality of images.
  • like reference characters commonly refer to the same parts throughout the several views, and for the sake of clarity, partial omission is made to provide reference numerals to all corresponding parts throughout the figures. Parts of the same or similar type may be provided with a trailing digit to distinguish them in addition to a common reference numeral.
  • the drawings are not necessarily intended to depict scale, but rather the emphasis is on illustrating the principles of the invention. In the following description, various embodiments of the invention will be described with reference to the following drawings, in which:
  • FIG. 1A and FIG. 1B each show a device for determining a skin condition according to various embodiments
  • FIG. 2 skin regions for applying a method and a device for determining a
  • FIG. 3 is a diagram illustrating a method for determining a
  • FIG. 4A and FIG. 4B illustrate absorption characteristics of fabrics used in a method and apparatus for determining a skin condition in accordance with various embodiments
  • Embodiments can be used;
  • FIG. 5A and FIG. 5B illustrate absorption characteristics of fabrics that may be utilized in a method and apparatus for determining a skin condition according to various embodiments
  • FIG. Figure 6 illustrates absorption characteristics of a substance that may be utilized in a method and apparatus for determining a skin condition according to various embodiments
  • FIG. 7 shows a flowchart of a method for determining a skin condition according to various embodiments.
  • FIG. FIG. 8 shows a flowchart of a method for determining a skin care cosmetic product according to various embodiments.
  • the device for determining a skin condition may include a portable light source for exposing skin to light.
  • the light can be in various embodiments have visible (VIS) light and / or near-infrared (NIR) light.
  • visible light may be understood to mean electromagnetic radiation having a wavelength in a range of about 380 nm to 780 nm
  • near-infrared light may be understood to mean electromagnetic radiation having a wavelength greater than that of visible light and smaller
  • the terms commonly used in the art may be VIS-NIR for a wavelength range of from about 400 nm to about 1000 nm and / or SWIR for a wavelength range of from about 2500 nm about 1000 nm to about 2000 nm are used.
  • the apparatus for determining a skin condition may include a portable receptacle.
  • the portable recording device may include a spectrometer for receiving at least one spectrum of visible light and / or near infrared light.
  • the portable receptacle may include a camera for capturing at least one image of visible light and / or near infrared light.
  • the portable capture device may include both the spectrometer and the camera and / or an imaging spectrometer (which may receive a spectrum for each pixel of a two-dimensional image). In this case, the recorded light may have at least a portion of the light which has been emitted from the portable light source to the skin and has interacted with the skin.
  • the apparatus for determining a skin condition may include a portable computing device.
  • the portable data processing device may be, for example, a smartphone, an iPad, a tablet, a laptop, or the like.
  • the portable data processing device may include a processor and a memory in various embodiments.
  • the data processing device may in various embodiments be coupled to the light source and to the recording device, for example in such a way that a data exchange between the data processing device and the light source and between the data processing device and the recording device is made possible.
  • the coupling e.g. by means of a data cable, an internal conductive connection and / or wireless transmission, e.g.
  • control commands can be transmitted from the data processing device to the light source and / or to the recording device, and recorded data, for example at least one recorded spectrum and / or at least one image, can be transmitted or transmitted from the recording device to the data processing device become.
  • the portable data processing device may be configured in various embodiments, based on the recorded spectrum and / or the recorded Figure to determine at least one skin condition parameter. Further, in various embodiments, the portable data processing device may be configured to determine a skin condition based on the at least one skin conditional parameter. In various exemplary embodiments, the portable data processing device can be set up itself, ie directly, to determine the at least one skin condition parameter and / or the skin condition.
  • the portable data processing device may be configured to indirectly determine the at least one skin condition parameter and / or the skin condition, for example, by providing the acquired spectrum, the captured image and / or the skin condition parameter to an external data processing device that may be configured, the skin condition parameter and / or to determine the skin condition from the provided data, and receiving a skin condition parameter and / or a skin condition from the external data processing device.
  • the skin condition parameter and / or the skin condition may be provided to the user after direct or indirect determination, e.g. by means of displays, e.g. on a screen of the data processing device.
  • the light source, the capture device, and / or the data processing device may form a portable integrated unit.
  • the light source and the capture device may form an integrated unit coupled to the data processing device, or the light source and the data processing device may form a portable integrated unit, and the capture device may be coupled to the light source data processing device, or the capture device and the data processing device may form a portable integrated unit, and the light source may be coupled to the cradle data processing device, or the light source, the cradle, and the data processing device may form a portable integrated unit.
  • the light that has interacted with the user's skin after it has been emitted from the light source to the skin may have at least one absorption structure.
  • the absorption structure may be caused by at least one substance present in and / or on the skin, for example one or more skin components, which absorbs part of the light emitted to the skin at at least one wavelength characteristic of the substance (also referred to as absorption wavelength). At least a portion of the remaining light may be reflected from the skin, scattered or, in general terms, emitted to the receiving device and as light that has interacted with the skin, referred to as received light or as received light.
  • the substance may include water, a lipid (eg, triglyceride, cholesterol ester, phospholipid, cholesterol), collagen, oxygen (eg, oxygenated and deoxygenated hemoglobin) and / or another skin component or have such.
  • a lipid eg, triglyceride, cholesterol ester, phospholipid, cholesterol
  • collagen e.g, collagen
  • oxygen e.g, oxygenated and deoxygenated hemoglobin
  • Typical absorption wavelengths may be, for example: water (to determine a moisture content): each near or around 970 nm, 150 nm, 1450 (or 1440) nm and 1900 (or 1940) nm; Lipids (for determining a lipid content and / or a lipid composition): each near or around 930 nm, 1040 nm, 1200 (or 1210) nm, 1400 (or 1390) nm, and 1700 (or 1730) nm (for example, for cholesterol: respectively or around 1200 nm, 1400 nm and 1750 nm); Collagen (for determining a protein content and / or a collagen structure): in each case near or around 1050 nm, 1200 nm and 1500 nm; Hemoglobin (to determine oxygen saturation and / or microcirculation): each near or around 420 nm and 585 nm (oxygenated hemoglobin) and respectively near or around 440 nm and 550
  • an absorption intensity i. a measure of what fraction of the light irradiated to the skin is picked up by the receiving device, a substance-specific absorption coefficient, and an amount of the substance that may be present in the skin.
  • the absorption intensity may be proportional to the amount of the substance.
  • the light emitted from the light source to the skin can, in various embodiments, penetrate deeper into the skin the longer its wavelength is.
  • a skin condition parameter and / or a skin condition for a thinner skin layer can be made possible (For example, only in an epidermis of the user) and to determine a skin condition parameter and / or a skin condition for a thicker skin layer by examining the skin at a greater absorption wavelength of the plurality of characteristic absorption wavelengths for a given substance (ie also lower skin layers for the To achieve investigation, for example, in addition to the epidermis even a dermis of the user).
  • FIG. 1A and FIG. 1B each show a device 100a or 100b for determining a skin condition of a user 102 according to various embodiments.
  • the apparatus 100a, 100b for determining a skin condition may include a portable light source 106 for exposing skin 102H to light 110.
  • the skin for which a skin condition is determined may, in various embodiments, as shown in FIG. 1 A and FIG. 1B is shown as a skin area 102H, to be part of a facial skin of a user 102. Alternatively or additionally, as shown in FIG. 1 A and FIG. 1B is shown as a skin area 102H, to be part of a facial skin of a user 102. Alternatively or additionally, as shown in FIG.
  • skin areas 102H for applying a method and apparatus for determining a skin condition according to various embodiments
  • another skin area 102 for example on an arm (skin area 102H2), a leg (skin area 102H4), a trunk (Area 102H4) and / or a hand (area 102H5) of a user may be used to determine a skin condition of that area of the skin.
  • Different skin areas 102H may have different skin conditions, for example, the skin may be sensitive to the user 102 face, normal to the rest of the body, or vice versa. In a case of different skin conditions in different skin areas, the different skin areas may require different care. However, different skin areas 102H may also have the same or similar skin conditions.
  • the light 110 may, in various embodiments, have visible light, e.g. having a wavelength in a range from about 380 nm to about 780 nm, or in one or more subranges within that range.
  • the light 110 may include near-infrared light instead of visible light or in addition to visible light, e.g. with a wavelength in a range of more than 780 nm to about 2500 nm or in one or more sub-ranges within this range.
  • the light 110 may provide electromagnetic radiation in a range of 380 nm to 2500 nm.
  • the light 110 can provide electromagnetic radiation in a range of 380 nm to 780 nm, e.g. for a VIS range, for example for determining an oxygen saturation.
  • the light 110 can provide electromagnetic radiation in a range of 380 nm to 2000 nm, e.g. for a VIS-SWIR range, for example for determining an oxygen saturation, a water content, a lipid content and / or a collagen content.
  • the light 110 can provide electromagnetic radiation in a range of 1000 nm to 2000 nm, eg for a SWIR range, for example for determining a water content, a lipid content and / or a collagen content.
  • the apparatus 100a, 100b for determining a skin condition may include a portable receptacle 108.
  • the pickup device 108 may comprise, in various embodiments, a spectrometer for picking up at least one spectrum and / or a camera for picking up at least one image of at least a portion of the visible light and / or the near infrared light 1 12 which interacts with the skin 102H.
  • the capture device 108 includes both the camera and the spectrometer, the camera and the spectrometer may have separate capture devices, or the camera and the spectrometer may form an imaging spectrometer.
  • an entire wavelength range emitted by the light source to the skin 102H and received after interaction with the skin may be detected by the capture device 108, e.g. by means of a detector, e.g. by means of an electronic detector for visible and / or near-infrared light.
  • the receiving device 108 may be configured such that only a portion of the wavelength range emitted by the light source to the skin 102H and received after interaction with the skin is captured by the pick-up device 108, e.g. by means of the detector.
  • the subarea may be selected in various embodiments by means of one or more filters.
  • the wavelength range emitted by the light source 106 and / or the wavelength range detected by the pickup device 108 may be selected such that within the wavelength range detected by the pickup device 108 at least one absorption feature, e.g. an absorption line or an absorption band, of a substance typically found in human skin (also referred to as a skin component or skin ingredient).
  • these may be water, lipids, oxygen (eg oxygen bound to hemoglobin), collagen, or another cosmetically relevant skin constituent which has one or more absorption features in the visible and / or near-infrared spectral range having.
  • the light source 106 and the receptacle 108 may be separate portable devices, as illustrated by way of example in FIG. 1A and FIG. 1 B shown.
  • both the light source 106 and the receiving device 108 can each have a size that makes it possible to carry the light source 106 or the receiving device 108, for example to accommodate them in a pocket or trouser pocket.
  • the light source 106 and the receptacle 108 may each have an area of less than 36 cm 2 and a thickness of less than 2 cm.
  • the light source 106 and the receptacle 108 may be parts of an integrated handheld device, ie, form an integrated unit.
  • the integrated device may have a size that allows it to be accommodated in a hand or trouser pocket.
  • the integrated device may have an area of less than 36 cm 2 and a thickness of less than 2 cm.
  • both the light source 106 and the receptacle 108 may be configured to be spaced apart from the skin 102H, as shown by way of example in FIG. 1A and FIG. 1 B is shown.
  • a radiation angle and / or a light intensity of the light source 106 and / or a detection angle and / or a sensitivity of the recording device 108 may be such that when the light source 106 and the recording device 108 are arranged at a distance from the skin 102H, for example up to a predetermined maximum distance, a signal detected at the receiving device 108 has a sufficient intensity for determining skin condition parameters, as described in more detail below.
  • light source 106 and receptacle 108 such as the integrated device, may be designed to be placed on skin 102H, for example, with a translucent portion of a housing.
  • the integrated design can allow a space-saving design.
  • the placement on the skin may allow relevant parts of the receiving device 108, for example the detector, and relevant parts of the light source 106, for example a light-generating element, e.g. an LED or the like, in a known fixed distance to the skin 102H to arrange. In this way, measurement uncertainties, which may result from a changing distance from light source 106 and recording device 108 to the skin and / or from one another, can be reduced or avoided.
  • the device 100a, 100b for determining a skin condition may comprise a portable data processing device 16 according to various embodiments.
  • the portable data processing device 16 may be, for example, a smartphone, an iPad, a tablet, a laptop, or the like.
  • the portable data processing device 16 may include a processor and memory in various embodiments.
  • the data processing device 1 16 may be coupled to the light source 106 in various embodiments, for example, such that a data exchange between the data processing device 1 16 and the light source 106 is enabled, for example by means of a data link 1 18.
  • control commands can be transmitted from the data processing device 16 to the light source 106 by means of the data connection 118.
  • the data processing device 1 16 may be coupled to the recording device 108 in various embodiments, for example, such that a data exchange between the data processing device 1 16 and the receiving device 108 is possible, for example by means of a data connection 1 14.
  • the data connection 1 14, for example, a data cable, a internal conductive connection and / or a wireless transmission, eg via WLAN or Bluetooth.
  • recorded data for example at least one recorded spectrum or / and at least one image, can be transmitted or transmitted from the recording device 108 to the data processing device 16.
  • the light source 106, the capture device 108, and / or the data processing device 16 may form a portable integrated unit.
  • the light source 106 and the receptacle 108 may form an integrated unit coupled to the data processing device 16, or the light source 106 and the data processing device 116 may form a portable integrated unit, and the receptacle 108 may be coupled to the light source data processing device or the recording device 108 and the data processing device 16 can form a portable integrated unit, and the light source 106 can be coupled to the recording device data processing device, or the light source 106, the recording device 108, and the data processing device 16 can form a portable integrated unit ,
  • the portable data processing device 1 16 may be configured in various exemplary embodiments to determine at least one skin condition parameter based on the recorded spectrum and / or the recorded image.
  • a software for example an app
  • the wavelength range recorded as at least one spectrum and / or at least one recording can be defined such that it has at least one absorption feature of a cosmetically relevant skin ingredient.
  • the substance may be water (relevant to skin moisture), a lipid (eg, triglyceride, cholesterol ester, phospholipid, cholesterol; with regard to a fat content and a composition of skin fats), collagen (relevant in terms of elasticity and flexibility), oxygen (eg based on oxygenated and deoxygenated hemoglobin, relevant to a skin color (eg pale / rosy)) and / or another skin component or be such exhibit.
  • a lipid eg, triglyceride, cholesterol ester, phospholipid, cholesterol; with regard to a fat content and a composition of skin fats
  • collagen relevant in terms of elasticity and flexibility
  • oxygen eg based on oxygenated and deoxygenated hemoglobin, relevant to a skin color (eg pale / rosy)
  • another skin component or be such exhibit e.g., water, a lipid (eg, triglyceride, cholesterol ester, phospholipid, cholesterol; with regard to a fat content and a composition of skin
  • the at least one skin conditional parameter may be time dependent (eg, several times a day, daily, weekly, or with any other temporal dependency) and / or under various environmental conditions (eg, in a high or low humidity environment, cold or hot, and the like). ) be determined,
  • FIG. 4A, FIG. 4B, FIG. 5A, FIG. 5B and FIG. FIG. 6 illustrates absorbance characteristics of substances normalized (individually for each substance) that may be utilized in a method and apparatus for determining a skin condition according to various embodiments.
  • FIG. 4B and FIG. 5B are enlarged views of FIG. 4A and FIG. 5A is shown as dash-dotted rectangles areas.
  • an absorption coefficient of hemoglobin may change depending on whether the hemoglobin is associated with oxygen (oxygenated hemoglobin, dotted line in FIGS. 4A and 4B) or not (deoxygenated hemoglobin, solid line in FIGS 4B).
  • characteristic absorption wavelengths of oxygenated hemoglobin may be near or around 420 nm and 585 nm, respectively.
  • characteristic absorption wavelengths of deoxygenated hemoglobin may be near or around 440 nm and 550 nm, respectively.
  • the difference in the absorption wavelengths of oxygenated hemoglobin and deoxygenated hemoglobin may be used to determine a ratio of oxygenated hemoglobin to deoxygenated hemoglobin and, as a skin condition parameter, a measure of skin oxygen saturation. Based on the oxygen saturation, as a further skin condition parameter, statements regarding a microcirculation of the skin can be made.
  • Characteristic absorption wavelengths of water may, as shown in FIG. 5A and FIG. 5B is shown as a dashed line, each near or around 970 nm, 150 nm, 1450 (or 1440) nm and 1900 (or 1940) nm.
  • Characteristic absorption wavelengths of various lipids may be as shown in FIG. 5A and FIG. 5B is shown as a solid line, in each case near or around 930 nm, 1040 nm, 1200 (or 1210) nm, 1400 (or 1390) nm and 1700 (or 1730) nm.
  • the said wavelengths and relative values of the normalized absorption coefficient are to be understood as rough indications, wherein both the characteristic absorption wavelengths and relative intensities may be slightly different for different lipids, which is for example the determination of the lipid composition can be used.
  • FIG. 6 shows a normalized absorption coefficient of cholesterol as a dashed line, wherein the characteristic absorption wavelengths of cholesterol may each be close to or around 1200 nm, 1400 nm and 1750 nm.
  • Characteristic absorption wavelengths of collagen may, as shown in FIG. 6 is shown as a solid line, each near or around 1050 nm, 1200 nm and 1500 nm.
  • the stated wavelengths and relative values of the normalized absorption coefficient are to be understood as rough indications, wherein both the characteristic absorption wavelengths and relative intensities may be slightly different for different structured collagens, which can be used, for example, for determining the collagen structure.
  • a spectrum of the light 110 emitted from the light source 106 to the skin 102H may be known (also referred to as a known spectrum).
  • the spectrum of the radiated light 110 may be recorded simultaneously with the light reflected / scattered by the skin 102H, or the light 110 may illuminate the skin 102H under well reproducible conditions (eg, using the integrated device) that is at most negligible Changes to the spectrum of the light emitted by the light source 106 1 10 are expected. In such a case, it may be sufficient to use a spectrum of the radiated light 110 determined, for example, during production of the device.
  • the recorded spectrum can be compared with the known spectrum.
  • the recorded spectrum may have a lower intensity in the region of the absorption feature than the known spectrum (the known spectrum being scaled outside of all absorption features, for example) can be that its intensity corresponds to that of the recorded spectrum to account for general intensity losses, eg due to scattering, etc.).
  • a strength of an absorption feature eg, a minimum intensity of the spectrum, an equivalent width of the absorption feature, or the like
  • the content of a skin component may be determined as the at least one skin condition parameter.
  • further skin condition parameters may be determined therefrom, such as a lipid composition of levels of a plurality of lipids, an oxygen saturation of a ratio of the content of oxygenated hemoglobin to deoxygenated hemoglobin, etc.
  • calibration measurements that may be performed, for example, in a laboratory, and the results of which may be stored in the computing device, for example, as part of the software / app, may be used to associate an absorbance intensity of a substance with an absolute level of the substance in the skin ,
  • the comparison may be performed for a wavelength range substantially limited to a relevant absorption feature.
  • Exemplary limited wavelength ranges are shown in FIG. 4A, 4B, 5A, 5B and 6.
  • the area 430_1 in FIG. 4A and / or the area 430_1 b in FIG. 4B can be used for the comparison to determine a content of oxygenated hemoglobin.
  • the area 430_2 in FIG. 4A and / or the area 430_2b in FIG. 4B can be used for the comparison to determine a content of deoxygenated hemoglobin.
  • both regions 430_1 and 430_1b or 430_2 and 430_2b can be used.
  • both regions 430_1 and 430_1b or 430_2 and 430_2b can be used.
  • the shorter wavelength wavelength range 430_1 or 430_2 can be used in each case.
  • only the longer wavelength wavelength range 430_1b or 430_2b may possibly be used.
  • the regions 540_1 and / or 540_1b in FIG. 5A and FIG. 5B can be used for the comparison to determine a lipid content.
  • Narrower wavelength ranges which are a central wavelength of an absorption feature of a particular wavelength Lipids can be used to detect levels of different lipids and, in order to determine a lipid composition, to balance.
  • the examined wavelength range can only be considered as a shorter-wavelength absorption feature depending on the desired skin layer thickness to be examined (for a thinner skin layer ) or only a longer wavelength absorption feature (for a thicker skin layer).
  • another criterion for selecting the absorption feature from a plurality of absorption features may be lacking or only slightly overlapping with absorption characteristics of other substances.
  • the absorption feature shown in region 540_1b may be more useful for determining lipid content than a lipid absorption feature at about 1410 nm because it coincides with a rising flank of a water absorption feature and virtually always having water in the skin should be expected.
  • the regions 540_2 and / or 540_2b may be shown in FIG. 5A and FIG. 5B can be used for the comparison to determine a water content.
  • the region 640_1 b in FIG. 6 are used for the comparison to determine a cholesterol content.
  • the area 640_2 in FIG. 6 are used for the comparison to determine a collagen content.
  • the area 640_1 in FIG. 6 may be less suitable for comparison because both collagen and cholesterol may have a local absorption maximum there.
  • At least one filter can be used for each wavelength range to be examined, the filter being arranged between the skin 102H and a detector of the recording apparatus 108 can and can be set up to let only light of the wavelength range to be examined reach the detector.
  • the at least one filter can be embodied as a narrow-band filter, which transmits essentially only light in the wavelength range of an absorption feature or in a similarly narrow reference range without absorption feature to the detector.
  • the images taken by the detector in the respective wavelength ranges are referred to below as the absorption image or reference image.
  • the at least one image may have a plurality of images
  • the detected portion of the light interacting with the skin may have a different wavelength range for each image of the plurality of images, with at least a first one being detected Part of the light 1 12 may have a wavelength range in which a relevant absorption feature can be located, and a second detected part of the light 1 12 may have a wavelength range in which may be no absorption feature or a merely insignificant absorption feature.
  • a signal of the absorption image may be compared with, for example, based on calibration measurements, known, emitted from the light source 106 as the light 1 10 intensity in the absorption image wavelength range compared to an absorption intensity and therefrom a content of the absorbent as Determine skin condition parameters.
  • a signal of the absorption image may be compared to a signal of the simultaneously or sequentially recorded reference image to determine the absorption intensity and therefrom the content of the absorbent as the skin condition parameter.
  • the filters may transmit the light 1 12 to the detector in the wavelength ranges described above as examination regions of the spectrum.
  • reference ranges for example, the areas 430_R in FIG. 4A and 4B, 540_R in FIG. 5A and 5B, and 640_R in FIG. 6 are used.
  • the reference regions may, in various embodiments, be chosen to be close to the wavelength range of the absorption image, have a similar broad wavelength range as this, and be free or substantially free of absorption features.
  • the at least one skin condition parameter can be determined by means of a simulation spectrum.
  • a simulation spectrum can be generated in which, for example starting from the known spectrum, based on at least one predetermined content of at least one substance, the spectrum can be calculated, which would result if the known spectrum with the skin interacts with the predetermined substance content would have.
  • the recorded spectrum can be compared with the simulation spectrum, for example, a mean square deviation of the two spectra can be determined.
  • simulation spectra may be generated for a plurality of predetermined levels of the substance, and by minimizing the mean square deviation, the content of the substance whose simulation spectrum has the smallest deviation from the recorded spectrum can be determined as the determined content of the substance.
  • the recorded spectrum can be examined completely by means of the simulation spectrum, to a large extent, which may for example have a plurality of absorption features, or to a small part which has only a single absorption feature or, for example, two or more separate wavelength ranges.
  • contents of different substances can be investigated simultaneously by means of the simulation spectrum.
  • absorption by water having a given water content can be simulated simultaneously with absorption by lipid having a predetermined lipid content.
  • the simulation spectrum can be compared with the recorded spectrum, and from the spectrum with the least deviation both the water and the lipid content can be determined.
  • absorption characteristics of other or further substances may be investigated, for example by taking into account simultaneously in a single simulation spectrum, or by several simulation spectra, for example for each different wavelength ranges, each one or may have multiple absorption features generated.
  • determining the at least one skin condition parameter may include utilizing one or more spectra acquired for a plurality of pixels, as described above for the spectrometer data, and / or using one or more mappings Pixels can be formed for a spectral range, have.
  • the determination of the at least one skin condition parameter, for example, as described above, directly by means of the portable Data processing device 1 16 can be determined, for example by means of the software / app, which can be installed on the portable data processing device 1 16.
  • the at least one determined skin condition parameters are provided.
  • the at least one skin condition parameter may be, for example, a value (e.g., with arbitrary units), a verbal message, a graphical representation, or the like. communicated, e.g. are represented, e.g. by means of displays, e.g. on a screen of the portable data processing apparatus 1 16.
  • the determination of the at least one skin condition parameter can take place indirectly by means of the portable data processing device 1 16, for example by the portable data processing device 1 16 initiating the determination of the at least one skin condition parameter by means of an external data processing device 222.
  • the external computing device 222 may be configured to retrieve the at least one skin conditional parameter from the provided data, e.g.
  • the portable computing device 16 may further be configured to receive and provide the at least one skin conditional parameter from the external computing device 222, for example, as described above.
  • the portable data processing device 1 16 in various embodiments may comprise a device for wireless data transmission device, e.g. via WLAN or Bluetooth.
  • the portable data processing device 216 may be configured to exchange the data with the external data processing device 222 via a cable connection.
  • the portable data processing device 16 may be configured to determine a skin condition based on the at least one skin conditional parameter.
  • the portable data processing device 1 16 may be configured to itself, ie directly to determine the at least one skin condition, for example by means of software, eg an app, which can be installed on the portable data processing device 16.
  • the portable data processing device 16 may be configured to indirectly determine the at least one skin condition, for example, by the portable data processing device 16 determining the skin condition using the external data processing device, e.g. by software, e.g. an app, which may be installed on the external data processing device 222, causes, for example, similar to the above described for determining the at least one skin condition parameter.
  • the software / app for determining the skin condition parameter may be the same as the software / app for determining the skin condition.
  • different software / apps may be used to determine the at least one skin condition parameter and to determine of the skin condition can be used.
  • determining the skin condition may include comparing the at least one determined skin condition parameter to entries of a database that may include a plurality of skin conditions each having at least one associated skin conditional parameter.
  • more than one skin condition parameter may be associated with one or more of the skin conditions. The assignment may be experimental, e.g. in laboratory tests.
  • Examples of skin conditions may be, for example, dry skin, with at least one assigned value for a water content of the skin (skin moisture) as the skin condition parameter, oily skin, with at least one assigned value for a lipid content, possibly also for a lipid composition of the skin, as the / the skin condition parameters, mature skin, having at least one associated value for a collagen content of the skin as the skin condition parameter, optionally further having an associated value for a water content of the skin, and various other or other skin conditions.
  • skin conditions may be, for example, dry skin, with at least one assigned value for a water content of the skin (skin moisture) as the skin condition parameter, oily skin, with at least one assigned value for a lipid content, possibly also for a lipid composition of the skin, as the / the skin condition parameters, mature skin, having at least one associated value for a collagen content of the skin as the skin condition parameter, optionally further having an associated value for a water content of the skin, and various other or other skin conditions.
  • the database may be stored in the portable data processing device 16 and / or in the external data processing device 222 in various embodiments.
  • That skin condition can be determined as the skin condition of the user whose assigned skin condition parameter shows the smallest deviations from the determined skin condition parameter (s).
  • at least one suitable care product and / or at least one care instruction may be assigned to each of the plurality of skin conditions. The assignment may, for example, be determined experimentally, eg in laboratory experiments.
  • literature data may be used to assess suitability of a care product and / or a care indication for maintaining a skin having a given skin condition.
  • each of the skin conditions may or may not be assigned a quality score.
  • a care product and / or a care indication may be judged suitable for a skin condition when it is expected, e.g. based on literature data, test results or empirical data, that the user's skin condition is maintained or changes to a skin condition with a higher quality value in the case of (for example, regular) application of the care product and / or the care instruction.
  • an assessment of a suitability of a care product to improve a skin condition may be confirmed or modified by including empirical values of other users 1020 having the same or a similar skin condition, for example, experience of treatment success.
  • the empirical values can be provided by the other users, for example, the external data processing device 222, for example by means of a wireless data transmission 226. Alternatively, a transmission of the data by means of cable can be used.
  • the database can be updated in the external data processing device 222 and / or in the portable data processing device 16. This can make it possible for the user 102 to always receive an optimal recommendation.
  • further information may be used regarding general health, skin condition, dietary habits, and other user behaviors (eg, daily outdoor / sun / water intake, smoking habits, etc.), eg by means of the software / app installed on the portable data processing device 16 and / or on the external data processing device 222.
  • the information may, in various embodiments, be retrieved by the user 102 via the portable computing device 1 16, which may enter it into the portable computing device 16, for example by means of a keyboard, as a voice message, as a selection from a menu presented by the portable computing device 16. or similar.
  • the product and / or care recommendation can be recommended based on the skin condition of the user 102, for example, those associated care products are recommended to the user 102, for example, who are waterproof and / or provided with a UV filter.
  • FIG. 3 shows a diagram 300 illustrating a method for determining a skin care cosmetic product according to various embodiments.
  • FIG. 3 may substantially illustrate those processes described above in the context of the method of determining a skin care cosmetic product according to various embodiments.
  • the method may comprise, according to various embodiments, a measurement of skin lipid, skin moisture, collagen and / or O 2 content (as skin condition parameters) in a visual and / or NIR wavelength range, for example as described above (at 310).
  • the method may further include determining a skin condition (also referred to as skin type), for example, as described above (at 320).
  • a skin condition also referred to as skin type
  • a product or care recommendation can be determined (at 360).
  • a product or care recommendation can be determined (at 360).
  • the skin condition determined on the basis of the skin condition parameters can be used.
  • the personal data as described above may also be included (indicated at 340), and / or data of other users, e.g. their empirical values (marked as 350) are used.
  • a determination of a treatment success may be monitored (at 310) by determining the skin condition parameter (at 310) (at 390). This may be useful, for example, during and after a cosmetic treatment based on the product recommendation (at 360). A treatment success based on objective values by means of the method for determining the skin condition can increase a motivation for the user (at 399).
  • product recommendations can be derived for individually tailored care products and / or individual care instructions.
  • the product recommendations and / or care instructions can be provided, for example, by means of software, for example an app.
  • the software / app that determines the skin condition parameter and / or the skin condition may be the same that determines the product recommendation and / or the care instructions.
  • different software programs / apps may be used for a portion of the various operations or all of the various operations (determining the at least one skin condition parameter, determining the skin condition, determining a product recommendation, determining a care indication).
  • a treatment success in a cosmetic treatment which may have a positive effect on the determined skin condition parameters or the determined skin condition, can be monitored.
  • the software / app may enable control and / or tracking of the results by presenting (e.g., plotting) the measurement results over time.
  • FIG. 7 shows a flowchart 700 of a method for determining a skin condition according to various embodiments.
  • a method for determining a skin condition may include determining (at 710) at least one skin condition parameter, comprising: exposing a user's skin to visible light and / or near-infrared light, capturing a spectrum, and / or imaging at least a portion of the visible light and / or the near-infrared light having interacted with the skin, wherein the exposing and taking-up can be done by a portable device, comparing at least one comparison region of the spectrum and / or the at least one image with calibration spectra and / or calibration images obtained for a plurality of calibration skin samples; Determining the at least one skin condition parameter including a result of the comparison; and determining the skin condition using the at least one skin condition parameter (at 720).
  • FIG. 8 shows a flowchart 800 of a method for determining a skin care cosmetic product according to various embodiments.
  • a method for determining a skin care cosmetic product may include: determining a skin condition according to various embodiments (at 810) and determining the cosmetic product based on the determined skin condition and a database having a plurality of skin conditions and a plurality of associated cosmetic products, each Skin condition of the majority of skin conditions at least one suitable cosmetic product may be assigned (at 820).

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Abstract

Dans divers exemples de réalisation, l'invention concerne un procédé pour déterminer un état cutané. Le procédé peut présenter la détermination d'au moins un paramètre d'état cutané présentant, lors de l'éclairage de la peau d'un utilisateur avec une lumière visible et/ou une lumière dans le proche infrarouge, l'enregistrement d'un spectre et/ou d'au moins une image d'au moins une partie de la lumière visible et/ou de la lumière dans le proche infrarouge qui a interagi avec la peau, l'éclairage et l'enregistrement pouvant s'effectuer au moyen d'un dispositif portatif, la comparaison d'au moins une zone de comparaison du spectre et/ou de la ou des images avec des spectres et/ou des images d'étalonnage acquises pour une pluralité d'échantillons cutanés d'étalonnage, et la détermination du ou des paramètres d'état cutané en incluant un résultat de la comparaison, ainsi que la détermination de l'état cutané en utilisant le ou les paramètres d'état cutané.
PCT/EP2017/080467 2016-12-07 2017-11-27 Procédé et dispositif pour déterminer un état cutané et procédé pour déterminer un produit cosmétique pour traiter la peau WO2018104089A1 (fr)

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DE102016224397.7A DE102016224397A1 (de) 2016-12-07 2016-12-07 Verfahren und Vorrichtung zum Ermitteln eines Hautzustandes und Verfahren zum Ermitteln eines Kosmetikprodukts zur Hautbehandlung
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US20140155760A1 (en) * 2012-02-15 2014-06-05 Trent Daniel Ridder Remote and local transfer of information in noninvasive hydration measurements
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