A detector for facial skin

Abstract

The utility model discloses a kind of detectors for facial skin, including main body, imaging cavity is opened in the main body, imaging cavity is equipped with imaging assembly, multiple first lamp groups and multiple sixth lamp groups, multiple first lamp groups are arranged at intervals around imaging assembly, second lamp group, third lamp group and fifth lamp group are equipped between two adjacent first lamp groups, multiple sixth lamp groups are arranged at intervals around imaging assembly, first lamp group is used to irradiate Wood's light, second lamp group is used to irradiate cross-polarized light, third lamp group is used to irradiate UV light, fifth lamp group is used to irradiate parallel polarized light, sixth lamp group is used to irradiate white light. The utility model provides a kind of detectors for facial skin, and multiple lamp groups arrangement combination forms multiple spectrum, improves the comprehensiveness and accuracy of skin state evaluation.

Description

Technical Field

[0001] This utility model relates to the field of visual skin inspection, and more particularly to an instrument for facial skin inspection. Background Technology

[0002] In existing facial skin detection technologies, the common approach is to have the user place their face in front of the detector and obtain images of the skin surface and deep layers by combining RGB visible light imaging with specific wavelength ultraviolet light imaging, thereby analyzing the skin's health status. In this scheme, spectral characteristics play a decisive role as a fundamental element for imaging quality and information extraction. However, the spectral range used in existing technologies is relatively limited and cannot cover the specific response characteristics of the skin that can only be manifested under different spectral bands. This limitation in spectral coverage results in the detection of only a few skin problems, reducing the comprehensiveness and accuracy of facial skin condition assessment. Utility Model Content

[0003] The purpose of this invention is to provide a facial skin detector that uses multiple light groups arranged in combination to form multiple spectra, thereby improving the comprehensiveness and accuracy of skin condition assessment.

[0004] The technical solution adopted by the facial skin detector disclosed in this utility model is: The device includes a main body with an imaging cavity. The imaging cavity contains an imaging component, multiple first lamp groups, and multiple sixth lamp groups. The multiple first lamp groups are arranged at intervals around the imaging component. Between two adjacent first lamp groups, there are second, third, and fifth lamp groups. The multiple sixth lamp groups are arranged at intervals around the imaging component. The first lamp groups are used to illuminate Wood's light, the second lamp groups are used to illuminate cross-polarized light, the third lamp groups are used to illuminate UV light, the fifth lamp groups are used to illuminate parallel-polarized light, and the sixth lamp groups are used to illuminate white light.

[0005] As a preferred embodiment, a fourth light group is provided between two adjacent first light groups, the fourth light group being used to illuminate cross-polarized light.

[0006] As a preferred embodiment, the second, third, fourth, and fifth light groups are arranged sequentially between two adjacent first light groups.

[0007] As a preferred embodiment, the first lamp group is covered with a light-transmitting lens, the second lamp group is covered with a positively polarizing lens, the third lamp group is covered with a light-transmitting lens, the fourth lamp group is covered with a negatively polarizing lens, the fifth lamp group is covered with a positively polarizing lens, and the sixth lamp group is covered with a diffuser plate.

[0008] As a preferred embodiment, the first lamp group contains two Wood's light bulbs and two UV light bulbs, the second lamp group contains two cross-polarized light bulbs, the third lamp group contains a single Wood's light bulb and a single UV light bulb, the fourth lamp group contains a single cross-polarized light bulb, the fifth lamp group contains two parallel polarized light bulbs, and the sixth lamp group contains multiple LED light bulbs.

[0009] As a preferred embodiment, there are four first light groups, which are respectively located in the four orthogonal directions of the imaging component, and four sixth light groups, which are respectively located in the four oblique directions of the imaging component.

[0010] As a preferred embodiment, the imaging cavity is provided with a forehead support plate and a chin support plate, which are located above and below the imaging component, respectively.

[0011] The beneficial effects of the facial skin detector disclosed in this utility model are: When in use, the user places their face inside the imaging cavity, and white light is shone onto the face through the sixth light group to reveal skin problems visible to the naked eye in the epidermis, such as acne, blemishes, wrinkles, pores, etc. The face is irradiated with Wood's light and UV light by the first and third light groups, respectively. The wavelength of Wood's light penetrates to the deep dermis to detect the distribution of deep pigmentation. Melanin does not fluoresce under ultraviolet excitation, thus making the dark areas more prominent and visually revealing the deep pigmentation of the skin. Furthermore, when UV light penetrates from the epidermis to different layers of the skin, it excites fluorescence with different characteristics. The skin appearance features presented by these fluorescencees, as imaged by the imaging components, can be used to assist in the diagnosis of pigmentary disorders, skin infections, and porphyria. By projecting cross-polarized light onto the face through the second light group, direct reflection of light from the surface is effectively suppressed, allowing reflected light from the basal layer and dermis of the skin to enter the imaging component for imaging, clearly showing the distribution of capillaries and pigmentation, such as skin problems like acne scars, acne, age spots, and redness. The fifth light group emits parallel polarized light towards the face. This light is reflected by the skin surface and enters the camera to form an image. It can suppress subcutaneous scattered light, enhance the intensity of epidermal reflected light, thereby improving the image clarity of skin surface texture, magnifying local details, and making problems such as oil, wrinkles, pores and acne more prominent. After sequentially irradiating the different spectra mentioned above, the imaging component captures corresponding facial images for skin condition assessment. Through gradual irradiation with a spectrum formed by a combination of multiple light groups, this detector can detect more types of skin problems, thereby improving the comprehensiveness and accuracy of skin condition assessment. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of a facial skin detector according to the present invention.

[0013] Figure 2 This is a schematic diagram of the imaging cavity structure of a facial skin detector according to the present invention.

[0014] Figure 3 This is a schematic diagram of the lamp arrangement of a facial skin detector according to the present invention.

[0015] Figure 4 This is a schematic diagram of the LED distribution of a facial skin detector according to this utility model. Detailed Implementation

[0016] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings: Please refer to Figures 1-3 .

[0017] This utility model discloses a facial skin detector, comprising a main body 1; An imaging cavity 11 is provided on the main body 1. The imaging cavity 11 has a concave structure, which can reduce the amount of external light entering the imaging cavity 11 and affecting the shooting effect of the imaging component 3. Furthermore, a pull-down light cover assembly is installed on the main body 1, and the pull-down light cover assembly covers the imaging cavity 11; when the user's face is placed in the imaging cavity 11, by pulling down the pull-down light cover assembly, the user's head can be covered inside the imaging cavity 11, further reducing the amount of external light entering the imaging cavity 11. Furthermore, a display screen 12 is provided on the outer side of the main body 1, which is used to display the images captured by the imaging component 3.

[0018] A forehead support plate 111 and a chin support plate 112 are fixedly connected to the inner wall of the imaging cavity 11. When the user's face is placed in the imaging cavity 11, the user's forehead touches the forehead support plate 111 and the chin support plate 112 lifts the user's chin, which helps the user to position themselves.

[0019] The imaging cavity 11 is equipped with an imaging component 3, multiple first lamp groups A and multiple sixth lamp groups F, and the main body 1 is equipped with a PCB board 2. The imaging component 3, multiple first lamp groups A and multiple sixth lamp groups F are all electrically connected to the PCB board 2. Furthermore, the imaging component 3 includes a camera, which is inserted into the main body 1 and electrically connected to the PCB board 2. The camera is fixedly connected to the inner wall of the imaging cavity 11, and the camera is located at the center of the imaging cavity 11. The forehead support plate 111 and the chin support plate 112 are located directly above and directly below the imaging component 3, respectively. Furthermore, the first lamp group A is shown in the attached diagram of the instruction manual. Figure 3The first lamp group A is marked as (A); in this embodiment, there are preferably four first lamp groups A, which are arranged around the imaging component 3 at intervals, and the four first lamp groups A are respectively located in the four orthogonal directions of the imaging component 3; the first lamp group A is used to irradiate Wood's light, and can also irradiate UV light at the same time, and the first lamp group A is covered with a light-transmitting lens; a second lamp group B, a third lamp group C, a fourth lamp group D and a fifth lamp group E are provided between two adjacent first lamp groups A, and the second lamp group B, the third lamp group C, the fourth lamp group D and the fifth lamp group E are all electrically connected to the PCB board 2, and the second lamp group B, the third lamp group C, the fourth lamp group D and the fifth lamp group E are arranged sequentially between two adjacent first lamp groups A; Furthermore, the first light group A, the second light group B, the third light group C, the fourth light group D, and the fifth light group E together form the first light ring, which is arranged in an inner circle around the camera; with the line connecting the two first light groups A located directly above and below the camera as the axis of symmetry, the first light ring is symmetrical from left to right; with the line connecting the two first light groups A located on the left and right sides of the camera as the axis of symmetry, the first light ring is symmetrical from top to bottom. Furthermore, the second lamp group B is shown in the attached diagram of the instruction manual. Figure 3 The middle mark is (B), and four second light groups B are symmetrically arranged on both sides of the camera; the second light groups B are used to illuminate cross-polarized light, and the second light groups B are covered with positive polarizing lenses. Furthermore, the third lamp group C is shown in the attached diagram of the instruction manual. Figure 3 The middle part is marked (C), and four third light groups C are symmetrically arranged on both sides of the camera; the third light group C is used to illuminate UV light, and can also illuminate Wood's light at the same time. The third light group C is covered with a light-transmitting lens. Furthermore, the fourth lamp group D is shown in the attached diagram of the instruction manual. Figure 3 The central part is marked (D), and four fourth light groups D are symmetrically arranged on both sides of the camera; the fourth light group D is used to illuminate cross-polarized light, and the fourth light group D is covered with a negative polarizing lens. Furthermore, the fifth lamp group E is shown in the attached diagram of the instruction manual. Figure 3 The center is marked (E); four fifth light groups E are symmetrically arranged on both sides of the camera; the fifth light group E is used to illuminate parallel polarized light, and the fifth light group E is covered with a positive polarizing lens; Furthermore, the sixth lamp group F is shown in the attached diagram of the instruction manual. Figure 3 The sixth lamp group is marked as (F); in this embodiment, there are preferably four sixth lamp groups F, which are arranged around the imaging component 3 at intervals, and the four sixth lamp groups F are respectively located in the four oblique directions of the imaging component 3; the sixth lamp group F is used to illuminate white light, and a diffuser plate is covered on the sixth lamp group F; Furthermore, the four sixth light groups F together form a second light ring, which is arranged around the camera in an outer ring, with the first light ring located inside the second light ring.

[0020] Please refer to Figure 3 and Figure 4 .

[0021] The first lamp group A contains two Wood's light bulbs and two UV light bulbs, while the third lamp group C contains a single Wood's light bulb and a single UV light bulb, allowing both lamp groups A and C to simultaneously emit Wood's light and UV light. Both the Wood's light bulbs and UV light bulbs are electrically connected to the PCB board 2. The first lamp group A and the third lamp group C differ in the number and arrangement of the light bulbs, allowing the user to switch between using either lamp group A or lamp group C depending on the required light intensity and illumination angle. Wood's light has a wavelength of 395nm, which can penetrate deep into the dermis and is used to detect the distribution of deep pigments in the skin. Melanin does not fluoresce under ultraviolet light, making the black areas more prominent and forming a sharp contrast with the surrounding tissue. This helps to visually present deep pigmentation problems in the skin and provides a basis for the diagnosis of pigmented skin diseases and the detection of fluorescent agents. UV light has a wavelength of 365nm. It utilizes the natural property of skin cells and tissues to convert invisible light into visible fluorescence, making the skin a self-luminescent body. After UV light penetrates from the epidermis to various layers of the skin, it excites fluorescence of different wavelengths. The skin appearance features presented by these fluorescence images by a camera can be used to assist in the diagnosis of pigmentary disorders, skin infections, and porphyria.

[0022] The second lamp group B contains two cross-polarized light beads, and the fourth lamp group D contains a single cross-polarized light bead. The cross-polarized light beads are electrically connected to the PCB board 2. The second lamp group B and the fourth lamp group D differ in the number of light beads and their arrangement. Depending on the required light intensity and illumination angle, the second lamp group B or the fourth lamp group D can be used for illumination. Both the second light group B and the fourth light group D can effectively reduce direct reflected light, allowing reflected light from the basal layer and dermis to enter the camera and form a negatively polarized image. Since the basal layer and dermis are rich in melanin and hemoglobin, this mode is suitable for observing the condition of the deep layers of the skin (basal layer and dermis), and can clearly show the distribution of capillaries and pigmentation, such as skin features like acne scars, acne, age spots and red blood vessels.

[0023] The fifth lamp group E contains two parallel polarized light beads, which are electrically connected to the PCB board 2. The light emitted by the fifth lamp group E acts on the skin surface (stratum corneum), causing the reflected light to enter the camera as a positively polarized image. This effectively suppresses subcutaneous scattered light and enhances epidermal reflection, thereby improving the imaging clarity of skin surface texture, magnifying local details of the skin surface, and helping to clearly observe the smoothness of skin texture and skin problems such as oil, wrinkles, pores, and acne.

[0024] The sixth light group F contains four LED beads, which are electrically connected to the PCB board 2. Under the uniform illumination of the sixth light group F, skin problems visible to the naked eye in the epidermis (such as acne, blemishes, wrinkles, pores, etc.) can be clearly presented, and a white light image is captured by the camera. This image will be used as a basic reference image for comparison and analysis with other images.

[0025] This utility model provides a facial skin detector. When in use, the user places their face inside the imaging cavity, and white light is shone onto the face through the sixth light group to reveal skin problems visible to the naked eye in the epidermis, such as acne, age spots, wrinkles, pores, etc. The face is irradiated with Wood's light and UV light by the first and third light groups, respectively. The wavelength of Wood's light penetrates to the deep dermis to detect the distribution of deep pigmentation. Melanin does not fluoresce under ultraviolet excitation, thus making the dark areas more prominent and visually revealing the deep pigmentation of the skin. Furthermore, when UV light penetrates from the epidermis to different layers of the skin, it excites fluorescence with different characteristics. The skin appearance features presented by these fluorescencees, as imaged by the imaging components, can be used to assist in the diagnosis of pigmentary disorders, skin infections, and porphyria. By projecting cross-polarized light onto the face through the second light group, direct reflection of light from the surface is effectively suppressed, allowing reflected light from the basal layer and dermis of the skin to enter the imaging component for imaging, clearly showing the distribution of capillaries and pigmentation, such as skin problems like acne scars, acne, age spots, and redness. The fifth light group emits parallel polarized light towards the face. This light is reflected by the skin surface and enters the camera to form an image. It can suppress subcutaneous scattered light, enhance the intensity of epidermal reflected light, thereby improving the image clarity of skin surface texture, magnifying local details, and making problems such as oil, wrinkles, pores and acne more prominent. After sequentially irradiating the different spectra mentioned above, the imaging component captures corresponding facial images for skin condition assessment. Through gradual irradiation with a spectrum formed by a combination of multiple light groups, this detector can detect more types of skin problems, thereby improving the comprehensiveness and accuracy of skin condition assessment.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A detector for facial skin, characterized in that, Includes a main body, on which an imaging cavity is formed; The imaging cavity is provided with an imaging component, multiple first light groups and multiple sixth light groups. The multiple first light groups are arranged at intervals around the imaging component. A second light group, a third light group and a fifth light group are arranged between two adjacent first light groups. The multiple sixth light groups are arranged at intervals around the imaging component. The first lamp group is used to illuminate Wood's light, the second lamp group is used to illuminate cross-polarized light, the third lamp group is used to illuminate UV light, the fifth lamp group is used to illuminate parallel-polarized light, and the sixth lamp group is used to illuminate white light.

2. A detector for facial skin as claimed in claim 1, wherein, A fourth light group is provided between two adjacent first light groups, and the fourth light group is used to illuminate cross-polarized light.

3. A detector for facial skin as claimed in claim 2, wherein, The second, third, fourth, and fifth light groups are arranged sequentially between two adjacent first light groups.

4. A detector for facial skin as claimed in claim 3, wherein, The first lamp group is covered with a light-transmitting lens, the second lamp group is covered with a positively polarized lens, the third lamp group is covered with a light-transmitting lens, the fourth lamp group is covered with a negatively polarized lens, the fifth lamp group is covered with a positively polarized lens, and the sixth lamp group is covered with a diffuser plate.

5. A device for detecting skin of a face according to claim 4, wherein The first lamp group contains two Wood's light bulbs and two UV light bulbs; the second lamp group contains two cross-polarized light bulbs; the third lamp group contains a single Wood's light bulb and a single UV light bulb; the fourth lamp group contains a single cross-polarized light bulb; the fifth lamp group contains two parallel-polarized light bulbs; and the sixth lamp group contains multiple LED light bulbs.

6. A device for detecting skin of a face according to claim 5, wherein The first light group consists of four lights, which are located in the four orthogonal directions of the imaging component. The sixth light group consists of four lights, which are located in the four oblique directions of the imaging component.

7. A device for detecting skin of a face according to any one of claims 1 to 6, characterized in that, The imaging cavity is equipped with a forehead support plate and a chin support plate, which are located above and below the imaging component, respectively.

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