Skin and hair measurement and analysis systems

Abstract

According to the present invention, a skin and hair measurement and analysis system is disclosed, which includes a skin and hair measurement and analysis device, a user's smart terminal installed with an application program linked to the skin and hair measurement and analysis device, and a server linked to the skin and hair measurement and analysis device and to the smart terminal. The system of the present invention can measure the density and thickness of the user's hair, the elasticity or moisture of the user's skin, wrinkles, pores, oil content, roughness, pigment, sensitive skin, skin tone, sebum, and further includes an infrared filter, so that high-quality image quality can be obtained. In addition, cosmetics that meet the characteristics of the user can be recommended.

Description

Technical Field

[0001] The present invention relates to a skin and hair measuring and analyzing system. More specifically, the skin and hair measuring and analyzing system can measure the density and thickness of a user's hair, the elasticity or moisture of the user's skin, wrinkles, pores, oil content, roughness, pigment, sensitive skin, skin tone, and sebum, and further includes an infrared filter that removes infrared wavelength bands, so that high-quality images can be obtained. The system is designed with a sensor unit, a light source unit, and a lower housing structure so that ordinary light and ultraviolet rays irradiated from the light source unit can be well irradiated onto the user's skin or hair and light reflected and diffracted on the user's skin or hair can be well focused, and cosmetics that meet the characteristics of the user can be recommended. Background Art

[0002] It is a well-known fact that the skin care market, scalp care market, and hair care market have been growing rapidly recently. As people pay more attention to their appearance, the market for measuring and caring for skin, scalp, and hair is growing in tandem with the increase in attention to appearance among men, women, and children.

[0003] As a related patent document, in Korean Patent Publication No. 10-2018-0050882 (published on May 16, 2018), a "skin care device" is disclosed, which is characterized in that it includes: a main body, which forms an appearance to simultaneously or selectively perform care on the surface and deep part of the skin; a pointed head, which is protruded from the above-mentioned main body; a front cover, which forms the front surface of the above-mentioned pointed head; a first electrode part, a plurality of pin-shaped electrodes of which are exposed in an array form on the front surface of the above-mentioned front cover; a second electrode part, which has an anode and a cathode respectively separated on both sides of the above-mentioned first electrode part; and a control part, which controls the above-mentioned first electrode part and the second electrode part by independently applying a high-frequency voltage.

[0004] In addition, in Korean Patent No. 10-1756900 (authorized on July 5, 2017), a "smart skin care system capable of supplying cold and hot air" is disclosed. The system includes: a cold and hot air forming unit, which generates cold air or hot air and selectively converts the supplied external air into cold air or hot air; a cold and hot air supply mask, which forms an internal space and has a plurality of cold and hot air supply holes on the surface facing the face and is equipped with a cold and hot air cable, which is connected to selectively supply cold air or hot air to the internal space; and an essence mask pack, which is attached to the user's face and is arranged opposite to the cold and hot air supply mask, and is formed with cold and hot air circulation holes larger than the cold and hot air supply holes, so that the cold air or warm air supplied through the cold and hot air supply holes circulates toward the user's face.

[0005] However, the above-mentioned related patent documents do not disclose the same technical solution as the present invention. The present invention includes: a device or system that can measure the density and thickness of the user's hair, the elasticity or moisture of the user's skin, wrinkles, pores, oil content, roughness, pigmentation, sensitive skin, skin tone, and sebum; further includes a device or system that can obtain high-quality images by removing an infrared filter in the infrared wavelength band; the structural design of the sensor part, the light source part, and the lower part of the casing, which allows the ordinary light and ultraviolet rays irradiated from the light source part to be well irradiated to the user's skin or hair and allows the light reflected and diffracted from the user's skin or hair to be well focused; and customized cosmetic recommendations.

[0006] [Prior art literature]

[0007] [Patent Document]

[0008] Patent Document 1: Korean Patent Publication No. 10-2018-0050882 (published on May 16, 2018), Skin Care Device

[0009] Patent Document 2: Korean Patent No. 10-1756900 (granted on July 5, 2017), Intelligent skin care system that can supply cold and warm air (System for skin care) Summary of the invention

[0010] Technical issues

[0011] The present invention has been developed to solve the above-mentioned problems. The purpose of the present invention is to provide a skin and hair measurement and analysis system, which can measure the density and thickness of the user's hair, the elasticity or moisture of the user's skin, wrinkles, pores, oil content, roughness, pigmentation, sensitive skin, skin tone, and sebum, and further includes an infrared filter that removes the infrared wavelength band, so that high-quality images can be obtained. The structure of the sensor part, the light source part, and the lower part of the housing is designed so that the ordinary light and ultraviolet rays irradiated from the light source part can be well irradiated to the user's skin or hair and the light reflected and diffracted by the user's skin or hair can be well focused, and cosmetics that meet the characteristics of the user are recommended.

[0012] Technical solutions to the problem

[0013] The skin and hair measuring and analyzing system according to the present invention, which is intended to achieve the above-mentioned purpose, comprises: a skin and hair measuring and analyzing device; a user's smart terminal, which is installed with an application program linked to the skin and hair measuring and analyzing device; and a server, which is linked to the skin and hair measuring and analyzing device and to the smart terminal, wherein the skin and hair measuring and analyzing device comprises: a light source section, which comprises a first light source for irradiating ordinary light and a second light source for irradiating ultraviolet rays in the 375nm band; a lens section, which is supported by a lens guide bracket and focuses light irradiated from the light source section and reflected and diffracted by the user's skin and hair; a sensor section, which acquires an image by light incident through the lens section; and a polarizing film section, which comprises a second polarizing film and a first polarizing film in a horizontal direction, wherein the first polarizing film in a horizontal direction is located on a portion of a front surface in the irradiation direction of the first light source and allows a portion of the ordinary light to pass through, and the second polarizing film is located on the front surface of the lens section and is opposite to the first polarizing film. polarizing in a vertical direction with respect to the horizontal direction of the above-mentioned first polarizing film; a main PCB part, which controls the various components of the above-mentioned skin and hair measuring and analyzing device and installs the above-mentioned sensor part; a battery part, which supplies power to the various components of the above-mentioned skin and hair measuring and analyzing device; a communication part, which communicates with the outside through a chip installed on the above-mentioned main PCB part; an input / output part, which turns on / off the above-mentioned skin and hair measuring and analyzing device and receives the user's operation input or outputs instructions or provides information to the user; and a shell part, which includes a shell lower part, a shell upper part and a shell middle part, wherein the shell lower part supports the above-mentioned light source part, the above-mentioned lens part and the above-mentioned polarizing film part and is suitable for the user's skin or hair, the shell upper part supports the above-mentioned battery part, the shell middle part is located between the above-mentioned shell lower part and the above-mentioned shell upper part and supports the above-mentioned main PCB part, and the above-mentioned shell lower part, the above-mentioned shell middle part and the above-mentioned shell upper part constitute the overall outer frame of the above-mentioned skin and hair measuring and analyzing device through assembly.

[0014] In addition, in the above-mentioned smart terminal, the hair image of the sensor part obtained is processed through the operation of the user's above-mentioned input / output part or the touch operation in the above-mentioned application to measure and analyze the hair density and hair thickness of the above-mentioned user. When measuring and analyzing the above-mentioned hair density, the above-mentioned hair image is processed and only the number of hair starting points, i.e., pores, existing in the unit screen is counted, and the hair is automatically displayed as one in the application. In the case that the number of hairs coming out of the above-mentioned pores is more than one, it is possible to receive the user's touch input for the part displayed as one and modify the number of hairs. If the user's touch input for selecting hair from the above-mentioned hair image is received, the above-mentioned hair image is processed and the thickness of the above-mentioned hair is calculated by the vertical distance between the scalp on both sides of the hair.

[0015] In addition, it further includes: an ultrasonic element, which is arranged on one side of the lower portion of the above-mentioned shell to apply ultrasonic waves to the skin of the above-mentioned user; and a vibration measuring unit, which is arranged on the other side of the lower portion of the above-mentioned shell to measure the vibration of the above-mentioned skin, and the elasticity of the skin of the above-mentioned user is measured and analyzed based on the result value after frequency conversion of the sensing value of the above-mentioned vibration measuring unit.

[0016] In addition, it further includes a current application pattern in the form of a printed circuit board that is arranged on one side of the lower portion of the shell and contacts the skin of the user, and a dielectric coated on the current application pattern, and the moisture of the user's skin is measured and analyzed based on the amount of charge charged to the current application pattern.

[0017] In addition, the wrinkles, pores, oiliness, and roughness of the user's skin are measured based on a first image mode of the image acquired by the sensor unit through the ordinary light that has not passed through the first polarizing film, and the pigmentation, sensitive skin, and skin tone of the user's skin are measured based on a second image mode of the image acquired by the sensor unit through the ordinary light that has passed through the first polarizing film, and the sebum of the user's skin is measured based on a third image mode of the image acquired by the sensor unit through ultraviolet rays.

[0018] In the wrinkle measurement, the image of the first image mode is filtered to extract a wrinkle region, the number of pixels in the wrinkle region is counted to measure the area of ​​the wrinkle, and the depth of the wrinkle is measured based on the darkest pixel value in the wrinkle region.

[0019] In the measurement of the pores, the image of the first image mode is filtered to extract the pore region, the number of pixels in the pore region is counted to measure the area of ​​the pores, and the depth of the pores is measured based on the darkest pixel value in the pore region.

[0020] In addition, in the pigmentation measurement of the user's skin including dark spots or freckles, the image of the second image mode is filtered to extract the pigmentation area, the number of pixels in the pigmentation area is counted to measure the area of ​​the pigmentation area, and the average value of the grayscale value of the pigmentation area is calculated to measure the color depth of the pigmentation area.

[0021] In addition, in the measurement of the skin tone of the user's skin, the RGB average value is calculated using the image of the second image mode to measure the skin color of the user's skin, and the skin tone of the user's skin is measured by distinguishing between a cool tone based on the average value of blue in the RGB average value and a warm tone based on the average value of yellow in the RGB average value.

[0022] In addition, an infrared filter for removing the infrared wavelength band is further included between the lens unit and the sensor unit to obtain high-quality image quality. The infrared filter can be configured to include an optically birefringent plate.

[0023] In addition, the central axis of the sensor unit, the central axis of the lens unit, and the central axis of the housing coincide with each other. In order to enable the ordinary light and ultraviolet light irradiated from the light source unit to be well irradiated onto the skin or hair of the user and to enable the light reflected and diffracted by the skin or hair of the user to be well focused, a first hollow is formed at a position including the central axis at the lower part of the housing, and the light source unit also forms a second hollow at a position including the central axis. A plurality of the first light sources and a plurality of the second light sources are respectively formed along the circumference of a circle smaller than the first hollow. The radius R21 of the circle formed by the first light sources is different from the radius R22 of the circle formed by the second light sources, thus avoiding physical overlap with each other. And the radius R21 of the circle formed by the first light sources and the radius R22 of the circle formed by the second light sources are formed to be smaller than the radius R1 of the first hollow. It is preferably designed as R21 < R22 < R1 or R21 + 2a = R22 + a = R1, where a is a number greater than 0 and is a specified interval distance.

[0024] In addition, the skin of the user can be diagnosed by integrating the customer information of the user, the questionnaire survey for the user, the image information of the user, and the environmental information, and beneficial ingredients beneficial to the user and harmful ingredients harmful to the user can be proposed, and cosmetics can be recommended to the user based on the amounts of the beneficial ingredients and the harmful ingredients in the cosmetics database.

[0025] In addition, a lens module composed of a lighting unit, a polarizing filter unit, and a lens unit is physically and electrically connected to the main PCB unit through a plurality of connection pins. For a lens module for skin examination, scalp examination, and hair examination, when connection pins of a preset combination among the plurality of connection pins are electrically connected, the type of the corresponding lens module is recognized as a lens module for skin, scalp, or hair examination. Or, the type of the lens module can also be recognized by measuring the resistance values assigned to the respective lens modules for skin examination, scalp examination, and hair examination or preset resistance values by supplying current to the connection pins.

[0026] Advantages of the Invention

[0027] The skin and hair measurement and analysis system according to the present invention has the following advantages.

[0028] First, it is possible to easily and accurately measure and analyze the density and thickness of the user's hair.

[0029] Second, it can also accurately measure the elasticity or moisture of the user's skin, wrinkles, pores, oil content, roughness, pigmentation, sensitive skin, skin tone, and sebum.

[0030] Third, it further includes an infrared filter that removes the infrared wavelength band, so as to obtain high-quality images.

[0031] Fourth, the structure of the sensor part, the light source part, and the lower part of the housing is designed so that the ordinary light and ultraviolet rays irradiated from the light source part can be well irradiated to the user's skin or hair and the light reflected and diffracted by the user's skin or hair can be well focused.

[0032] Fifth, the user's skin can be diagnosed by integrating the user's customer information, the user's questionnaire, the user's image information and environmental information, and beneficial ingredients that are beneficial to the user and harmful ingredients that are harmful to the user are proposed, and cosmetics are recommended to the user based on the amount of beneficial ingredients and harmful ingredients in the cosmetics database.

[0033] Sixth, when a pre-set combination of connecting pins among a plurality of connecting pins is electrically connected, the type of the corresponding lens module can be identified as a lens module for skin inspection, scalp inspection, or hair inspection. Alternatively, the type of the lens module can be identified by supplying current to the connecting pins and measuring the resistance value or a pre-set resistance value allocated to each of the lens modules for skin inspection, scalp inspection, and hair inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 FIG. 1 is a block diagram schematically showing the structure of a skin and hair measurement and analysis system according to a preferred embodiment of the present invention.

[0035] Figure 2 FIG. 1 is a block diagram schematically showing the structure of a skin and hair measurement and analysis device according to a preferred embodiment of the present invention.

[0036] Figure 3 FIG. 1 is a cross-sectional view schematically showing the structure of a skin and hair measurement and analysis system according to a preferred embodiment of the present invention.

[0037] Figure 4 1 is a front view and an enlarged view of the lower side of the housing of the skin and hair measurement and analysis system according to a preferred embodiment of the present invention.

[0038] Figure 5 is an exploded perspective view of a skin and hair measurement and analysis system according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Before the description, it should be noted that the terms or words used in this specification and claims should not be interpreted limited to the common meaning or the meaning in the dictionary, but should be based on the principle that the inventor can accurately define the concept of the term in order to explain his own invention in the best way, and should be interpreted as the meaning and concept consistent with the technical idea of ​​the present invention.

[0040] Therefore, the embodiments described in this specification and the structures illustrated in the accompanying drawings are merely the most ideal embodiments of the present invention and do not fully represent the technical ideas of the present invention. Therefore, at the time of this application, it should be understood that there will be various equivalents and modifications that can replace them.

[0041] (Composition of skin and hair measurement and analysis system)

[0042] Figure 1 is a block diagram schematically showing the structure of a skin and hair measurement and analysis system according to a preferred embodiment of the present invention, Figure 2 is a block diagram schematically showing the structure of a skin and hair measurement and analysis device according to a preferred embodiment of the present invention. Figure 3 is a cross-sectional view schematically showing the structure of a skin and hair measurement and analysis system according to a preferred embodiment of the present invention, Figure 4 1 is a front view and an enlarged view of the lower side of the housing of the skin and hair measurement and analysis system according to a preferred embodiment of the present invention, Figure 5 is an exploded perspective view of a skin and hair measurement and analysis system according to a preferred embodiment of the present invention.

[0043] As shown in the figure, the skin and hair measurement and analysis system 1000 according to the present invention includes a skin and hair measurement and analysis device 100 , a smart terminal 200 and a server 300 .

[0044] Here, the smart terminal 200 may be a common smart phone owned by the user, or a terminal specially made for measuring and analyzing skin and hair, or further a home computer terminal such as a desktop or laptop computer, which can install an application for measuring and analyzing skin and hair through the Google App Store (Play Store or APP Store) and linked with the skin and hair measuring and analyzing device 100. Alternatively, it can also be linked with the skin and hair measuring and analyzing device 100 by connecting to a website through wired / wireless communication.

[0045] In addition, the server 300 is linked to the skin and hair measurement and analysis device 100 and to the smart terminal 200, and can be remotely connected through the user connecting to a website or application, and can store and analyze the user's personal information or skin and hair measurement data to provide recommended cosmetics to the user.

[0046] Of course, if the storage of information for recommendation or the execution of recommendation algorithm requires a lot of processing, it can also be executed on a server other than the terminal. Furthermore, it is also possible to make full use of the accumulated information of other users to analyze the user's location or predict the user's skin condition. The server 300 can be a central server, but can also be implemented in the form of a cloud server.

[0047] The server 300 stores information about the user, i.e., the client (age, gender, place of residence, allergy characteristics, skin type that the user believes or knows, etc.), and, if necessary, stores questionnaire items and questionnaire results information that can be queried when the user registers or at a specific time, image information about the skin including the scalp and hair, time information when the image was acquired, weather information, and other environmental information. Based on this information and using artificial intelligence, the user's skin condition can be predicted.

[0048] Here, the user's skin can be diagnosed by integrating customer information, questionnaires, image information, and environmental information, and beneficial and harmful ingredients can be proposed, and products (cosmetics, etc.) can be recommended by considering the amount of ingredients and the manufacturer, model name, etc. stored or the amount of beneficial and harmful ingredients in a cosmetics database that is updated regularly or in real time.

[0049] For example, if the user suffers from allergies, only cosmetics that do not contain the corresponding allergic ingredients, i.e. harmful ingredients, can be recommended. If the user suffers from xerosis, several cosmetics (e.g., 3 cosmetics) with the largest amount of beneficial ingredients can be recommended based on the amount of beneficial ingredients that are generally known to eliminate xerosis. If the UV index is high on that day, a specified number of cosmetics with high UV protection effects can also be recommended. In addition, a cosmetics management method or a customized cosmetics manufacturing method can also be introduced or recommended.

[0050] At this time, three cosmetics can be recommended, and price information or information about cosmetic manufacturers can be provided to improve user convenience. Furthermore, it is also possible to connect to a cosmetics sales website and obtain advertising revenue from the cosmetics sales website or the cosmetics manufacturer or sales company.

[0051] If necessary, the user can be matched with a suitable expert by integrating customer information, questionnaires, image information, and environmental information. The server 300 can store information about the expert in advance, or update it regularly or in real time. The expert can be an expert in cosmetics or a beauty expert, but can also be a dermatologist.

[0052] In addition, the skin and hair measurement and analysis device 100 includes a light source unit 110 , a lens unit 120 , a sensor unit 130 , a polarizing film unit 140 , a main PCB unit 150 , a battery unit 160 , a communication unit 170 , an input / output unit 180 , and a housing unit 190 .

[0053] Here, the light source unit 110 includes a first light source 111 that radiates ordinary light (white light) and a second light source 112 that radiates ultraviolet light in the 375nm band. The second light source 112 has maximum energy at a wavelength of 375nm, and is a light source having a spectrum with a minimum wavelength of 370nm and a maximum wavelength of 380nm, and is a light source that radiates light in the ultraviolet band.

[0054] Here, a plurality of connection pins 114 protruding from a lens guide bracket 113 in the figure are used to physically and electrically connect the chip LED PCB where the second light source 112 is located to the deep LED PCB 112 where the first light source 111 is located. Of course, the deep LED used as the first light source 111 for irradiating ordinary light can be changed to a chip LED, and the chip LED can be changed to a deep LED.

[0055] The lens unit 120 is supported by the lens guide bracket 113 and focuses the light irradiated from the light source unit 110 and reflected and diffracted by the user's skin and hair. The sensor unit 130 is located at the rear end of the lens unit 120 and acquires an image by the light incident through the lens unit 120. The sensor unit 130 includes a pair of lens housings 121 and 122 that support the lens unit, i.e., the lens module 120.

[0056] In addition, the polarizing film unit 140 includes: a first polarizing film in the horizontal direction; and a second polarizing film, wherein the first polarizing film in the horizontal direction is located at a portion of the front surface in the irradiation direction of the first light source 111 and allows a portion of the ordinary light to pass through, and the second polarizing film is located at the front surface of the lens unit 120 and polarizes in a vertical direction relative to the horizontal direction of the first polarizing film. The polarizing film unit 140 is supported by upper and lower polarizing film brackets 141 and 142.

[0057] In addition, the main PCB unit 150 is a unit for controlling the components of the skin and hair measurement and analysis device 100 and for mounting the sensor unit 130. Figure 3As shown, the main PCB part 150 is specifically implemented by multiple layers, for example, 3 layers of PCB 151, 152, 153. The pillars 154 connecting the PCB layers also play a physical fixing role, but also perform electrical connection between each other. The main PCB part 150 is provided with a C-type USB port 155, so that it can be used to charge the battery part 160 or install or update the internal software of the skin and hair measurement and analysis device 100.

[0058] The lens module composed of the lighting unit, polarizing filter unit, lens unit, etc. can have various types according to various uses. That is, there are various types according to uses such as skin, scalp, and hair inspection, and it has the function of automatically identifying them. The main PCB unit 150 and the lens unit 130, the lighting unit, and the polarizing filter unit 140 are physically connected or electrically connected through a plurality of through-connecting pins. When the connection pins of a predetermined combination of the plurality of connection pins are electrically connected, the type of the corresponding lens module can be identified as a lens module for skin, scalp, or hair inspection.

[0059] For example, from the appearance, the main PCB unit 150 and the lens module are physically and electrically connected by the same six connection pins, but in the case of the skin inspection lens module, a combination of connection pins 2, 4, and 6 can be electrically connected to form a circuit or supply power, in the case of the scalp inspection lens module, a combination of connection pins 1, 2, and 3 can be electrically connected to form a circuit or supply power, and in the case of the hair inspection lens module, a combination of connection pins 1, 3, and 5 can be electrically connected to form a circuit or supply power. The connection pin that is not suitable for electrical connection can be made to have the characteristic of not being electrically connected. Therefore, if an electrical connection is attempted with the connection pin, the resistance becomes infinite, so it can be identified on the main PCB unit 150.

[0060] Alternatively, the type of lens module may be identified by supplying current to the connection pins to measure the resistance value or a preset resistance value allocated to the lens modules for skin inspection, scalp inspection, and hair inspection. For example, the following settings may be preset: in the case of a skin inspection lens module, the resistance value in the circuit is set to be 5 ohms as measured by the connection pin; in the case of a scalp inspection lens module, the resistance value in the circuit is set to be 3 ohms as measured by the connection pin; in the case of a hair inspection lens module, the resistance value in the circuit is set to be 1 ohm as measured by the connection pin. The type of lens module can be identified by detecting the resistance value.

[0061] Furthermore, the type of the lens module can be identified or distinguished by simultaneously utilizing the combination of the plurality of connection pins and the detection of the resistance value in the circuit structure formed by the combination of the plurality of connection pins.

[0062] In addition, if Figure 3 As shown, the battery unit 160 is disposed on the upper portion 193 of the housing and supplies power to each component of the skin and hair measurement and analysis device 100, and can be specifically implemented by a secondary battery, etc. The battery unit 160 can also be charged by an external power source.

[0063] In addition, the communication unit 170 is a structure that communicates with the outside through a chip installed on the main PCB unit 150. The communication unit 170 can install a chip that can communicate using Wi-Fi or Bluetooth standards on the main PCB unit 150, and can transmit the image obtained by the sensor unit 130 to the external smart terminal 200, so that various measurements, analyses, and predictions can be performed on the smart terminal 200. Moreover, the image transmitted from the smart terminal 200 can also be measured, analyzed, and predicted in various ways on the server 300.

[0064] In addition, the input / output unit 180 is a structure for turning on / off the skin and hair measurement and analysis device 100 and receiving the user's operation input or outputting instructions or providing information to the user. For example, the input / output unit 180 can be specifically implemented by two buttons. The skin and hair measurement and analysis device 100 can be turned on or off by long pressing one button, and when capturing an image of the skin, scalp, or hair, an input operation can be performed by short pressing one of the two buttons provided in the input / output unit 180. Although there are two buttons, various inputs can be realized by combining them (in addition to the power button and the image capture button, there is also a focus button for capturing images, etc.).

[0065] In addition, the housing portion 190 includes: a housing lower portion 191, which supports the light source portion 110, the lens portion 120, and the polarizing film portion 140 and is suitable for the user's skin or hair; a housing upper portion 193, which supports the battery portion 160; and a housing middle portion 192, which is located between the housing lower portion 191 and the housing upper portion 193 and supports the main PCB portion 150. The housing lower portion 191, the housing middle portion 192, and the housing upper portion 193 are assembled to form the overall outer frame of the skin and hair measurement and analysis device 100.

[0066] Here, it is preferred that the central axis of the sensor unit 130, the central axis of the lens unit 120, and the central axis of the housing 110 coincide with each other. In order to allow the ordinary light and ultraviolet rays irradiated from the light source unit 110 to be well irradiated to the user's skin or hair and to allow the light reflected and diffracted by the user's skin or hair to be well focused, a first hollow is formed at a portion including the central axis of the housing lower portion 191 and a second hollow is formed at a portion including the central axis of the light source unit 110.

[0067] A plurality of first light sources 111 and a plurality of second light sources 112 are respectively formed along the circumference. Preferably, the radius R21 of the circle formed by the first light sources 111 and the radii R21, R22 of the circles formed by the second light sources 112 are different from each other, thus avoiding physical overlap with each other, and are designed such that the radius R21 of the circle formed by the first light sources 111 and the radius R22 of the circle formed by the second light sources are smaller than the radius R1 of the first hollow. That is, it can be designed as R21 < R22 < R1 or R21 + 2a = R22 + a = R1. Here, a is a number greater than 0, and preferably a is set at a prescribed interval distance.

[0068] On the other hand, an infrared filter (not shown) for removing the infrared wavelength band is further included between the lens unit 120 and the sensor unit 130 to obtain high-quality image quality, and such an infrared filter is preferably configured to include an optical birefringent plate.

[0069] (Density and thickness of hair)

[0070] In the intelligent terminal 200, the hair image obtained by the sensor unit 130 can be processed through the operation of the user on the above input / output unit or a touch operation in the application program of the intelligent terminal 200, and the density and thickness of the user's hair can be measured and analyzed.

[0071] Here, when measuring and analyzing the density of hair, the hair image is processed, and only the number of hair roots (the location where hair emerges from the scalp), that is, the number of pores, existing within the unit screen is counted, and the hair is automatically displayed as 1 strand in the application program. For the part that is automatically misdisplayed as "1 strand" although the number of hairs emerging from the pores is more than 1 strand, the user's touch input can be manually received to modify the number of hairs.

[0072] In addition, when the thickness of the hair is judged by the user's touch operation or automatically judged in the application program, the hair image is enlarged. If a hair is selected through the user's touch input, the hair image is processed. For example, if the points where the gray level suddenly changes in the connected image such as the gray level (i.e., the boundary between the hair and the scalp) are used to extract both sides of the hair, and the vertical distance between the scalps on both sides of the hair is calculated, the thickness of the hair can be extracted.

[0073] (Measurement and analysis of skin indicators)

[0074] In order to measure the elasticity of the user's skin, an ultrasonic element (not shown) may be further included, which is disposed on one side of the lower portion 191 of the housing and applies ultrasonic waves to the user's skin. In addition, a vibration measuring unit (not shown) may be further included, which is disposed on the other side of the lower portion 191 of the housing and measures the vibration of the skin. The elasticity of the user's skin is measured and analyzed based on the result value after frequency conversion of the sensing value (Sensing value) of the vibration measuring unit (not shown). The better the elasticity of the skin, the better the vibration transmission is performed. Using the result of the frequency conversion, the elasticity of the skin is measured based on whether the vibration transmission is performed well.

[0075] In addition, in order to measure the moisture content of the skin, a current application pattern in the form of a printed circuit board in contact with the user's skin, which is provided on one side of the lower portion 191 of the housing, and a dielectric coated on the current application pattern may be further included. The moisture content of the user's skin can be measured and analyzed based on the amount of charge charged to the above-mentioned current application pattern. The more moisture content of the skin, the more charge is charged, thereby generating a greater potential difference between the two electrodes of the current application pattern.

[0076] In addition, wrinkles, pores, oil content, and roughness of the user's skin are measured by analyzing a first image mode based on an image acquired by the sensor unit 130 using ordinary light that does not pass through the first polarizing film 141 .

[0077] Here, in the measurement of wrinkles, the image of the first image mode may be filtered to extract the wrinkle region, the number of pixels in the wrinkle region may be counted to measure the area of ​​the wrinkles, and the depth of the wrinkles may be measured based on the darkest pixel value in the wrinkle region. The wrinkle area and the wrinkle depth may also be combined to generate a wrinkle value. Assuming that the wrinkle area is S1 and the wrinkle depth is d1, the wrinkle value may be defined as, for example, S1d1 / 3.

[0078] In addition, in the measurement of pores, the image of the first image mode may be filtered to extract the pore region, the number of pixels in the pore region may be counted to measure the area of ​​the pores, and the depth of the pores may be measured based on the darkest pixel value in the pore region. The pore area and the pore depth may also be combined to generate a pore value. Assuming that the pore area is S2 and the pore depth is d2, the pore value may be defined as, for example, S2d2.

[0079] On the other hand, the second image mode based on the image acquired by the sensor unit 130 using the normal light that has passed through the first polarizing film is analyzed to measure the pigmentation of the user's skin, whether the skin is sensitive, and the skin tone.

[0080] Here, in the pigmentation measurement of the user's skin including dark spots or freckles, the image of the second image mode can be filtered to extract the pigmentation area, the number of pixels in the pigmentation area can be counted to measure the area of ​​the pigmentation area, and the average value of the grayscale value of the pigmentation area can be calculated to measure the color depth of the pigmentation area.

[0081] In addition, in measuring the skin tone of the user's skin, the RGB (red, green, blue) average value can be calculated using the image in the second image mode to measure the skin color of the user's skin. The skin tone of the user's skin can be measured by distinguishing between a cool tone based on the average value of blue in the RGB average value and a warm tone based on the average value of yellow in the RGB average value.

[0082] In addition, the sebum of the user's skin is measured by analyzing the third image pattern of the image acquired by the sensor unit 130 using ultraviolet rays.

[0083] As described above, although the present invention is described through limited embodiments and drawings, the present invention is not limited thereto. Of course, a person skilled in the art can make various modifications and variations within the scope equivalent to the technical idea of ​​the present invention and the appended claims.

Claims

1. A skin and hair measurement and analysis system, comprising: Skin and hair measurement and analysis devices; A user's smart terminal, which is installed with an application program linked to the above-mentioned skin and hair measurement and analysis device; and a server, which is linked with the skin and hair measurement and analysis device and the smart terminal, wherein the skin and hair measurement and analysis system is characterized in that: The skin and hair measuring and analyzing device comprises: a light source section, which comprises a first light source for irradiating ordinary light and a second light source for irradiating ultraviolet light in the 375nm band; a lens section, which is supported by a lens guide bracket and focuses light irradiated from the light source section and reflected and diffracted by the user's skin and hair; a sensor section, which acquires an image by light incident through the lens section; a polarizing film section, which comprises a second polarizing film and a first polarizing film in a horizontal direction, wherein the first polarizing film in the horizontal direction is located on a portion of the front surface in the irradiation direction of the first light source and allows a portion of the ordinary light to pass through, and the second polarizing film is located on the front surface of the lens section and polarizes in a vertical direction relative to the horizontal direction of the first polarizing film; a main PCB section, which controls each component of the skin and hair measuring and analyzing device and mounts the sensor section ; a battery unit, which supplies power to each component of the skin and hair measuring and analyzing device; a communication unit, which communicates with the outside through a chip installed on the main PCB unit; an input / output unit, which turns on / off the skin and hair measuring and analyzing device and receives a user's operation input or outputs instructions or provides information to the user; and a shell unit, which includes a shell lower portion, a shell upper portion and a shell middle portion, wherein the shell lower portion supports the light source portion, the lens portion and the polarizing film portion and is suitable for the user's skin or hair, the shell upper portion supports the battery unit, the shell middle portion is located between the shell lower portion and the shell upper portion and supports the main PCB unit, and the shell lower portion, the shell middle portion and the shell upper portion are assembled to form an overall outer frame of the skin and hair measuring and analyzing device; The main PCB part is implemented by a 3-layer PCB. The pillars connecting the PCB layers also play a physical fixing role, but also perform electrical connection between each other. A Type C USB port is provided on the main PCB part, so it can be used to charge the battery part or install or update the internal software of the skin and hair measurement and analysis device; The central axis of the sensor unit, the central axis of the lens unit, and the central axis of the housing coincide with each other. In order to allow the ordinary light and ultraviolet rays irradiated from the light source to be well irradiated to the skin or hair of the user and to allow the light reflected and diffracted by the skin or hair of the user to be well focused, a first hollow is formed at a portion including the central axis at the lower portion of the housing and a second hollow is formed at a portion including the central axis of the light source. A plurality of the first light sources and a plurality of the second light sources are respectively formed along the circumference of a circle smaller than the first hollow described above. The radius R21 of the circle formed by the first light sources and the radius R22 of the circle formed by the second light sources are different from each other, thus avoiding physical overlap with each other. Moreover, the radius R21 of the circle formed by the first light sources and the radius R22 of the circle formed by the second light sources are formed to be smaller than the radius R1 of the first hollow, and are designed such that R21 < R22 < R1 or R21 + 2a = R22 + a = R1, where a is a number greater than 0 and is a specified interval distance.

2. The skin and hair measurement and analysis system according to claim 1, wherein in the intelligent terminal, the hair image obtained by the sensor unit is processed through the operation of the input / output unit of the user or a touch operation in the application program, and the density and thickness of the hair of the user are measured and analyzed. When measuring and analyzing the density of the hair, the hair image is processed and only the number of hair starting points, i.e., pores, existing within the unit screen is counted, and the hair is automatically displayed as 1 strand in the application program. In the case where the number of hairs emerging from the pores is more than 1, a touch input from the user for the part displayed as 1 strand can be received to modify the number of hairs. If a touch input from the user for selecting a hair from the hair image is received, the hair image is processed and the thickness of the hair is calculated based on the vertical distance between the scalps on both sides of the hair.

3. The skin and hair measurement and analysis system according to claim 2, wherein it further includes: an ultrasonic element that is disposed on one side of the lower part of the housing and applies ultrasonic waves to the skin of the user; and a vibration measurement unit that is disposed on the other side of the lower part of the housing and measures the vibration of the skin. Based on the result value after frequency conversion of the sensed value of the vibration measurement unit, the elasticity of the skin of the user is measured and analyzed.

4. The skin and hair measurement and analysis system according to claim 3, wherein it further includes a printed circuit board-shaped current application pattern that is disposed on one side of the lower part of the housing and is in contact with the skin of the user, and a dielectric coated on the current application pattern. The moisture of the skin of the user is measured and analyzed based on the electric charge charged to the current application pattern.

5. The skin and hair measurement and analysis system according to claim 4, wherein the wrinkles, pores, oiliness, and roughness of the skin of the user are measured by analyzing a first image pattern of an image obtained by the sensor unit through the ordinary light that has not passed through the first polarizing film, and the pigment, whether the skin is sensitive skin, and the skin tone of the user are measured by analyzing a second image pattern of an image obtained by the sensor unit through the ordinary light that has passed through the first polarizing film, and the sebum of the skin of the user is measured by analyzing a third image pattern of an image obtained by the sensor unit through ultraviolet light.

6. The skin and hair measurement and analysis system according to claim 5, wherein In the wrinkle measurement, the image of the first image mode is filtered to extract a wrinkle region, the number of pixels in the wrinkle region is counted to measure the area of ​​the wrinkle, and the depth of the wrinkle is measured based on the darkest pixel value in the wrinkle region.

7. The skin and hair measurement and analysis system according to claim 6, characterized in that: In the measurement of the pores, the image of the first image mode is filtered to extract the pore region, the number of pixels in the pore region is counted to measure the area of ​​the pores, and the depth of the pores is measured based on the darkest pixel value in the pore region.

8. The skin and hair measurement and analysis system according to claim 7, characterized in that: In the pigmentation measurement of the user's skin including dark spots or freckles, the image of the second image mode is filtered to extract the pigmentation area, the number of pixels in the pigmentation area is counted to measure the area of ​​the pigmentation area, and the average value of the grayscale value of the pigmentation area is calculated to measure the color depth of the pigmentation area.

9. The skin and hair measurement and analysis system according to claim 8, characterized in that: In the skin tone measurement of the user's skin, the RGB average value is calculated using the image of the second image mode to measure the skin color of the user's skin, and the skin tone of the user's skin is measured by distinguishing between cold tones based on the average value of blue in the RGB average value and warm tones based on the average value of yellow in the RGB average value.

10. The skin and hair measurement and analysis system according to claim 9, characterized in that: An infrared filter for removing an infrared wavelength band is further provided between the lens unit and the sensor unit so as to obtain a high-quality image. The infrared filter is configured to include an optical birefringent plate.

11. The skin and hair measurement and analysis system according to any one of claims 1 to 10, characterized in that: The user's skin is diagnosed based on the user's customer information, a questionnaire survey on the user, the user's image information and environmental information, and beneficial ingredients that are beneficial to the user and harmful ingredients that are harmful to the user are proposed, and cosmetics are recommended to the user based on the amounts of the beneficial ingredients and harmful ingredients in the cosmetics database.

12. The skin and hair measurement and analysis system according to claim 11, characterized in that: The lens module, which includes a lighting unit, a polarizing filter unit and a lens unit, is physically and electrically connected to the main PCB unit through a plurality of connecting pins. As for the lens modules for skin inspection, scalp inspection and hair inspection, when a predetermined combination of connecting pins among a plurality of connecting pins is electrically connected, the type of the corresponding lens module is identified as a lens module for skin inspection, scalp inspection and hair inspection, or the type of the lens module is identified by supplying current to the connecting pins and measuring the resistance value or a predetermined resistance value allocated to each of the lens modules for skin inspection, scalp inspection and hair inspection.

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