Illuminating device of skin detector

Abstract

The utility model relates to the technical field of skin detection, in particular to a lighting device of a skin detector. The lighting device of the skin detector specifically comprises a shell, a lens fixedly connected with the shell, a lamp bead located in the shell, a diffusion sheet, a vertical polarized light sheet and a transverse polarized light sheet. The lamp bead is fixedly connected with the bottom of the shell, the diffusion sheet is located above the lamp bead, and the vertical polarized light sheet and the transverse polarized light sheet are located above the diffusion sheet; the vertical polarized light sheet and the transverse polarized light sheet are parallel or perpendicular to each other; the transverse polarized light sheet and the vertical polarized light sheet are parallel to each other and are used for enabling light rays to be more easily captured by a camera in an overlapping barrier peak gap area; the transverse polarized light sheet and the vertical polarized light sheet are perpendicular to each other and are used for enabling light rays to show more obvious differentiation in different colors. The multi-spectral imaging system has the advantages of rich spectral components and capability of meeting the multi-spectral imaging requirement.

Description

Technical Field

[0001] This utility model relates to the field of skin detection technology, and in particular to an illumination device for a skin detector. Background Technology

[0002] As people's living standards improve, their attention to and demand for skincare and other related services are also increasing. In the field of skincare, precise skin analysis using skin testing instruments is necessary before targeted skin treatments and care can be provided.

[0003] In existing skin analysis instruments, cameras typically employ standard white light multi-lamp illumination when capturing static facial photographs. While standard white light multi-lamp illumination provides sufficient light to ensure image brightness and meet basic image clarity requirements, its limited spectral composition and illumination method restrict applications requiring multispectral data analysis. This single spectral characteristic limits the capture of in-depth facial details and fails to meet the demands of multispectral imaging, particularly when performing precise analysis of subtle features such as skin texture, pigmentation, and capillaries.

[0004] Therefore, an illumination device for a skin analyzer is provided to address the shortcomings of existing technologies. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an illumination device for a skin detector, which aims to solve the problem that the spectral composition is relatively simple and cannot meet the needs of multispectral imaging.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An illumination device for a skin detector includes: a housing, a lens fixedly connected to the housing, an LED bead located inside the housing, a diffuser, a vertical polarizer, and a horizontal polarizer;

[0008] The lamp bead is fixedly connected to the bottom of the housing, the diffuser is located above the lamp bead, and the vertical polarizer and the horizontal polarizer are located above the diffuser.

[0009] The vertical polarizer and the horizontal polarizer are parallel or perpendicular to each other;

[0010] The horizontal polarizer and the vertical polarizer are parallel to each other, which makes it easier for the camera to capture light in the overlapping peak and aperture region.

[0011] The horizontal polarizer and the vertical polarizer are perpendicular to each other, which is used to make the light present more obvious differences in different colors.

[0012] As a further improvement to the technical solution of this utility model, it also includes an ultraviolet light filter, which is located above the diffuser and is used to filter out ultraviolet light.

[0013] As a further improvement to the technical solution of this utility model, it also includes a light-diffusing sheet, which is located above the lamp beads to achieve uniform light distribution.

[0014] As a further improvement to the technical solution of this utility model, it also includes polarizing plates with polarization directions perpendicular to each other. After the light passes through the homogenizer, it is irradiated onto the surface of the target object by polarizing plates with different polarization directions. Then, the light is collected by a camera equipped with parallel or perpendicular polarization, resulting in two polarization overlap angles: cross and parallel.

[0015] As a further improvement to the technical solution of this utility model, the lamp bead is an LED light source.

[0016] As a further improvement to the technical solution of this utility model, the LED light source emits an ultraviolet light source, and a filter is provided at the front end of the ultraviolet light source.

[0017] As a further improvement to the technical solution of this utility model, the wavelength of the ultraviolet light source is in the 330nm-390nm band.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The illumination device of the skin analyzer provided by this utility model includes a diffuser above the LED beads, which scatters the light after passing through the diffuser, making the light more uniform and revealing as many details of the object as possible under the camera. Vertical and horizontal polarizers are set on the diffuser. When the horizontal and vertical polarizers are parallel, the light is more easily captured by the camera in areas of overlapping light barriers, allowing the camera to focus on capturing details such as textures, wrinkles, pores, and creases on the object. When the horizontal and vertical polarizers are perpendicular, they create a more obvious difference in color, highlighting details such as erythema, surface inflammatory lesions, and pigmentation on the skin. The illumination device of this utility model's skin analyzer features a rich spectral composition, meeting the needs of multispectral imaging. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 This is a side cross-sectional view of the lighting device of the skin detector of this utility model;

[0022] Figure 2This is a top cross-sectional view of the lighting device of the skin detector of this utility model;

[0023] Figure 3 This is a schematic diagram of the main cross-section of the lighting device of the skin detector of this utility model.

[0024] In the picture:

[0025] 1. Housing; 2. Lens; 3. Lamp bead; 4. Diffuser; 5. Vertical polarizer; 6. Horizontal polarizer; 7. Ultraviolet filter. Detailed Implementation

[0026] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0027] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0028] Reference Figures 1 to 3 An illumination device for a skin detector includes a housing 1, a lens 2, an LED bead 3, a diffuser 4, a vertical polarizer 5, and a horizontal polarizer 6.

[0029] In one embodiment, lens 2 is fixedly connected to housing 1, and LED 3, diffuser 4, vertical polarizer 5, and horizontal polarizer 6 are all located inside housing 1. LED 3 is fixedly connected to the bottom of housing 1, diffuser 4 is located above LED 3, and vertical polarizer 5 and horizontal polarizer 6 are located above diffuser 4. Vertical polarizer 5 and horizontal polarizer 6 are parallel or perpendicular to each other. The parallel polarizer 6 and vertical polarizer 5 are used to make light more easily captured by the camera in areas with overlapping peaks and abrupt changes, allowing the camera to focus on capturing details such as textures, wrinkles, pores, and creases on the target object. The perpendicular polarizer 6 and vertical polarizer 5 are used to make the light exhibit more obvious differences in different colors, highlighting details such as erythema, surface inflammatory lesions, and pigmentation on the skin. Preferably, LED 3 is an LED light source.

[0030] A diffuser 4 is positioned above the LED bead 3 to scatter light, resulting in more even illumination and maximizing the detail of the object under the camera's view. A vertical polarizer 5 and a horizontal polarizer 6 are mounted on the diffuser 4. When the horizontal polarizer 6 and vertical polarizer 5 are parallel, the light is more easily captured by the camera in areas of overlapping light barriers, allowing the camera to focus on capturing details such as textures, wrinkles, pores, and creases on the object. When the horizontal polarizer 6 and vertical polarizer 5 are perpendicular, they create more distinct color variations in the light, highlighting details such as erythema, inflammatory lesions, and pigmentation on the skin. The illumination device of this skin analyzer features a rich spectral composition, meeting the requirements of multispectral imaging.

[0031] In one embodiment, the lighting device further includes an ultraviolet filter 7, which is located above the diffuser 4. The ultraviolet filter 7 is used to filter out ultraviolet light to prevent damage to the target object under strong light sources. In addition, it can eliminate the interference of ultraviolet light to the camera, which helps to improve the clarity and color reproduction of the photo.

[0032] In one embodiment, the lighting device further includes a light homogenizer located above the lamp bead 3 to achieve uniform light distribution. The purpose of this light homogenizer is to produce uniform tricolor light after passing through it, so that the emitted light can be more evenly distributed and illuminated on the object or face under test.

[0033] In one embodiment, the lighting device further includes polarizing plates with polarization directions perpendicular to each other. After passing through the light homogenizer, the light is irradiated onto the surface of the target object by polarizing plates with different polarization directions. The light is then collected by a camera equipped with parallel or perpendicular polarization, generating two polarization overlap angles: cross and parallel. These angles suppress and enhance reflection, respectively. Crossing suppresses reflection to observe details such as skin pigmentation, while parallel polarization enhances reflection to observe issues such as skin's water-oil balance.

[0034] In one embodiment, the LED light source emits ultraviolet light, and the front end of the ultraviolet light source is provided with a filter to filter stray light. The wavelength of the ultraviolet light source is in the 365nm band.

[0035] Other aspects of the lighting device of the skin detector described in this utility model are described in the prior art and will not be repeated here.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. An illumination device for a skin detector, characterized in that Include: The shell, the lens fixedly connected with the shell, the lamp bead located in the shell, the diffusion sheet, the vertical polarized light sheet and the horizontal polarized light sheet; The lamp bead is fixedly connected with the bottom of the shell, the diffusion sheet is located above the lamp bead, the vertical polarized light sheet and the horizontal polarized light sheet are located above the diffusion sheet; The vertical polarized light sheet and the horizontal polarized light sheet are parallel or perpendicular to each other; The horizontal polarized light sheet and the vertical polarized light sheet are parallel to each other, which is used for making the light more easily captured by the camera in the area of the stacked barrier peak; The horizontal polarized light sheet and the vertical polarized light sheet are perpendicular to each other, which is used for making the light more obviously different in different colors.

2. The illumination device of a skin detection instrument according to claim 1, wherein, It also includes an ultraviolet light sheet, which is located above the diffusion sheet, and is used for filtering out the ultraviolet light of the light.

3. The illumination device of claim 1, wherein the light source is a light emitting diode. It also includes a light uniformity sheet, which is located above the lamp bead, and realizes the uniformity of the light.

4. The illumination device of a skin detection meter according to claim 3, wherein, It also includes polarized light sheets with perpendicular polarization directions, the light passes through the light uniformity sheet, is irradiated on the surface of the target object through the polarized light sheets with different polarization directions, and then is collected by the cameras with parallel or perpendicular directions, to generate two polarization overlapping angles of cross and parallel.

5. The illumination device of a skin detection instrument according to claim 1, wherein, The lamp bead is an LED light source.

6. The illumination device of a skin detection meter according to claim 5, wherein, The LED light source emits an ultraviolet light source, and the front end of the ultraviolet light source is provided with a filter.

7. The illumination device of a skin detection meter according to claim 6, wherein, The wavelength of the ultraviolet light source is 330nm-390nm wave band.

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