CN212089514U - Skin detection system and light source thereof - Google Patents

Abstract

The utility model provides a skin detecting system and light source thereof. The skin detection system includes: a housing assembly with an opening; a control module mounted within the housing assembly and for controlling the skin detection system; a light source mounted at the opening of the housing assembly; and the shooting module is provided with a view finding component arranged at the opening of the light source base. The light source includes: the light source base is annular, and the middle of the light source base is provided with an opening; a plurality of UV assemblies mounted on the light source base, the UV assemblies configured to: the central axis emitting ultraviolet rays is not parallel to the central axis of the light source base when in work; and the white light components are arranged on the light source base. The utility model has the advantages that: the light path design is optimized by adjusting the light source arrangement and using the ellipsoidal reflecting cup, so that the purposes of improving the imaging quality and increasing the effective shooting distance range are achieved, and the practicability of the skin detection system is improved.

Description

Skin detection system and light source thereof

Technical Field

The utility model relates to a skin detecting system and used light source thereof belongs to phototherapy instrument technical field.

Background

The wood lamp was invented by woodland, a physicist of the united states in 1903, and has a wide application as a diagnostic tool common to dermatology. The woodde lamp works on the principle that clinical diagnosis is carried out according to the fluorescent reaction of the skin damage part to ultraviolet rays by emitting the ultraviolet rays with the wave band of 320 nm-400 nm to irradiate the skin damage part.

The skin detection system is a device which generates a fluorescence reaction under the irradiation of ultraviolet light (360 nm-370 nm) according to skin lesions and then performs image acquisition, processing and report management under specific conditions by combining a high-definition camera. Compared with the traditional wood lamp, the skin detection system has the characteristics of convenience in image acquisition, simplicity and easiness in report management and the like, and is more and more accepted by users. In this system, the design of the light source directly affects the imaging quality and thus the diagnostic result. At present, the existing skin detection systems in the market generally have the defects of low imaging quality, small effective shooting distance range and the like, and influence the reliability and effectiveness of diagnosis results to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the existing skin detection system has low imaging quality and the range of effective shooting distance is too small.

In order to solve the above problem, a first aspect of the present invention provides a light source for a skin detection system, including:

the light source base is annular, and the middle of the light source base is provided with an opening;

a plurality of UV assemblies mounted on the light source base, the UV assemblies configured to: when each ultraviolet light component works, the central axis for emitting ultraviolet light is not parallel to the central axis of the light source base;

and the white light components are arranged on the light source base.

In some embodiments, the plurality of ultraviolet components are configured to: when it works, the central axes emitting ultraviolet rays are in a divergent form.

In some embodiments, the uv assembly comprises:

the ultraviolet reflecting cup is directly or indirectly arranged on the light source base;

and the ultraviolet LED is arranged in the ultraviolet reflecting cup.

In some embodiments, the uv reflecting cup is mounted obliquely outward.

In some embodiments, the reflective surface of the uv reflector cup is part of an ellipsoid.

In some embodiments, the uv reflecting cup is mounted to the light source base by means of a uv substrate, and the uv LED is mounted on the uv substrate and located at the bottom of the reflecting cup.

In some embodiments, the uv assembly further comprises a filter mounted over the opening of the uv reflecting cup.

In some embodiments, the plurality of uv light assemblies are arranged in a first circle and the plurality of white light assemblies are arranged in a second circle, the first circle and the second circle being concentric.

In some embodiments, the plurality of white light assemblies and the plurality of ultraviolet light assemblies are alternately arranged on the same circle at equal intervals.

The utility model discloses a second aspect provides a skin detecting system, include:

a housing assembly with an opening;

a control module mounted within the housing assembly for controlling the skin detection system;

the light source as described above, the light source being mounted at the opening;

and the shooting module is arranged at the opening of the light source base, and a view finding component of the shooting module is arranged at the opening of the light source base.

The utility model has the advantages that: the light path design is optimized by adjusting the light source arrangement and using the ellipsoidal reflecting cup, so that the purposes of improving the imaging quality and increasing the range of the effective shooting distance are achieved, and the practicability of the skin detection system is improved.

Drawings

Fig. 1 is a schematic overall appearance diagram of a skin detection system in embodiment 1 of the present invention;

fig. 2 is a schematic view of the overall structure of a light source in embodiment 1 of the present invention;

fig. 3 is a schematic side view of the overall structure of the light source in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of the light source according to embodiment 1 of the present invention with the diffuser and a part of the optical filter removed;

fig. 5 is a schematic cross-sectional view of a light source in embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a light source base according to embodiment 1 of the present invention;

fig. 7 is a schematic layout diagram of the uv light module and the white light module in embodiment 2 of the present invention.

The reference numerals in the above figures are as follows:

100 light source

110 light source base

111 open pore

120 ultraviolet light assembly

121 ultraviolet light substrate

122 ultraviolet back plate

123 ultraviolet reflecting cup

124 ultraviolet LED

125 optical filter

130 white light component

131 white light substrate

132 white light LED

133 soft light cover

200 housing assembly

210 outer casing

220 bracket

230 handle

300 control module

Detailed Description

Unless otherwise defined, technical or scientific terms used in the claims and the specification of this patent shall have the ordinary meaning as understood by those of ordinary skill in the art to which this patent belongs. As used in this specification and the appended claims, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "a" or "an," and the like, do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" means two or more. The word "comprising" or "having", and the like, means that the element or item appearing before "comprises" or "having" covers the element or item listed after "comprising" or "having" and its equivalent, but does not exclude other elements or items.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention may be used in alternative or combined combinations between different embodiments, and therefore the present invention is also to be construed as encompassing all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, the invention should also be construed as including embodiments that include all other possible combinations of one or more of A, B, C, D, even though such embodiments may not be explicitly recited in the following text.

The skin detection system generates white light and ultraviolet light through the LEDs, and because the light intensity distribution of the LED light source is Lambert distribution, ideal uniform irradiation surface is difficult to achieve by directly using the LED arrays for superposition when the number of the LEDs is small. The utility model provides a new light source design for skin detecting system, including arranging and the light path design of LED light source. The LED light source is arranged in a ring shape by adopting two light sources of a white light LED and an ultraviolet light LED, and a camera in the system is positioned in the center of the ring and is coaxial with the annular LED light source, so that the uniform illumination in an effective shooting distance is achieved, the excellent heat dissipation is ensured, and the imaging quality is greatly improved. The LED light path is designed in a mode of combining a reflecting cup and an optical filter.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Example 1

Fig. 1 is a schematic diagram of the skin detection system in the present embodiment. The skin detection system is mainly composed of a light source 100, a housing assembly 200, a control module 300, and a photographing module. The main body of the housing assembly 100 is a housing 210, the housing 210 is a thick tube, the rear section is a little thin and closed, and the front section is thick with an opening. The housing 210 is connected with a bracket 220 and a handle 230, the bracket 220 is used for fixing the skin detection system at a proper height position, and the handle 230 is convenient for an operator to adjust the angle of the skin detection system. The light source 100 is a composite module composed of a plurality of components, and a circular opening is formed in the center of the composite module, and the light source 100 is the main innovation of the present invention. The shooting module is installed inside the housing 210, and a camera or a video camera is selected, and the lens is accurately installed at the circular opening of the light source 100 and looks at the detected person. The control module 300 is used to control the operation of the skin detection system, e.g., turning on and off the power supply, adjusting the light source, capturing images, etc. The main portion of the control module 300 is mounted inside the housing 210, and some control knobs or buttons are exposed on the surface of the housing 210 for the convenience of the operator of the skin detection system. The surface of the housing 210 is also provided with heat dissipation holes.

Fig. 2 and 3 show the form of the light source 100 separately, wherein fig. 2 is an overall view and fig. 3 is a side view. The light source 100 is a core component of the skin detection system, and mainly comprises a light source base 110, an ultraviolet light assembly and a white light assembly.

Fig. 6 shows a shape structure of the light source base 110. The light source base 110 is ring-shaped and has a circular opening 111 in the middle. The light source base 110 is preferably made of an aluminum alloy for its lightness, robustness and excellent heat dissipation. The light source base 110 is internally provided with 4 large screw holes through which the entire light source 100 is mounted with the housing 210. The outer circumference of the light source base 110 is provided with 4 small screw holes through which the white light assembly is mounted on the light source base 110.

The structure of the white light assembly is as shown in fig. 3 and fig. 4, and the white light assembly is relatively simple and mainly comprises a white light substrate 131, a white light LED 132 and a diffuser 133. The white light substrate 131 is an annular circuit board and is mounted on the light source base 110. The 3 white LEDs 132 are arranged on the white substrate 131 at equal intervals, i.e. in a ring shape. If more white light illumination is desired, more white LEDs 132 can be added to the white light substrate 131. The diffuser 133 is mounted on the surface of the light source 100, and has a circular opening at the center thereof to match the circular opening of the light source base 110. The diffuser 133 is further opened with a plurality of circular holes at portions between the center and the edge thereof, and the uv assembly is installed at these positions. The diffuser 133 can uniformly disperse and emit the white light emitted from the white LED, and also has the functions of dust prevention and beauty.

The structure of the uv assembly is shown in fig. 4 and 5, in which fig. 4 shows six sets of uv assemblies, and fig. 5 is a schematic sectional view of the uv assembly on the left side thereof. The light source base 110 shown in fig. 6 has ultraviolet substrates 121 attached thereto in an amount equal to the number of ultraviolet modules, and the ultraviolet modules are mounted on these ultraviolet substrates 121. The uv substrate 121 is generally made of an aluminum plate with good heat dissipation performance, and is used to quickly conduct heat generated by the uv assembly during operation to the light source base 110 and then dissipate the heat.

In the present embodiment, the white light components and the uv light components are distributed on different circles, but the two circles are concentric circles. The six sets of uv assemblies in fig. 4 are arranged in a circular ring shape at equal intervals, which is important for uniform distribution of uv light. Each set of uv assembly consists essentially of a uv back plate 122, a uv LED 124, a uv reflector cup 123, and a filter 125, as shown in fig. 5. The uv back plate 122 is a circuit board on the surface of which the uv LEDs 124 are mounted, and the uv back plate 122 supplies power to the uv LEDs 124 and controls the on/off and brightness thereof, etc. The reflective surface of the ultraviolet reflective cup 123 is a part of an ellipsoid, the ellipsoidal reflective cup is optically designed, a proper first focal length and a proper second focal length are selected, and the optical property of the ellipsoid is utilized, so that a better superposition effect is achieved on an image surface, a more uniform irradiation surface is obtained, and the imaging quality is improved. The uv reflecting cup 123 is mounted on the uv back plate 122 such that the uv LED 124 is located at the bottom of the uv reflecting cup 123. The filter 125 is installed on the opening of the uv reflecting cup 123. The ultraviolet reflecting cup 123 and the filter 125 can be used for condensing light, adjusting a divergence angle and filtering stray light, so that the range of the effective shooting distance of the skin detection system can be enlarged.

The inner ring of the light source base 110 has a gentle slope, and the slope range is about 1-15 degrees. The uv assembly, when mounted in place, naturally also has an angle of inclination, the same as the slope of the angle. The six ultraviolet reflecting cups 123 are obliquely installed outwards, so that when each ultraviolet LED 124 works, the central axis emitting ultraviolet rays is not parallel to the central axis of the light source base 110, and the central axes are in a divergent form. The tilt angle and the parameters of the ellipsoid are calculated precisely. When the light source works, one part of ultraviolet light is directly emitted, the other part of ultraviolet light is emitted from the optical filter 125 after being reflected by the ellipsoid, the irradiation range of the LED is adjusted by using the ellipsoid reflection cup, a certain inclined installation angle is increased, light rays emitted by the light source array can be better superposed on the irradiation surface, and the ultraviolet light is uniformly distributed after being superposed, so that the illumination requirement of the skin detection system is met.

Example 2

Fig. 7 shows a schematic diagram of the light source provided in this embodiment, the ultraviolet light assemblies 120 and the white light assemblies 130 are distributed on the same circular light source base 110, and the ultraviolet light assemblies 120 and the white light assemblies 130 are alternately arranged at equal intervals. The uv assembly 120 in this embodiment is identical to the uv assembly described in embodiment 1: the ultraviolet light LED is arranged at the center in the reflecting cup, the reflecting cup is arranged by inclining at a proper angle, and the reflecting surface in the reflecting cup is a part of an ellipsoid. For a white light assembly, it may be optionally mounted in a similar reflector cup, or no reflector cup may be used.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A light source for a skin detection system, comprising:

the light source base is annular, and an opening is formed in the middle of the light source base;

a UV assembly mounted on the light source base, the UV assembly configured to: when each ultraviolet light assembly works, the central axis for emitting ultraviolet light is not parallel to the central axis of the light source base;

and the white light components are arranged on the light source base.

2. A light source for a skin detection system as claimed in claim 1, wherein a plurality of the uv light assemblies are configured to: when it works, the central axes emitting ultraviolet rays are in a divergent form.

3. A light source for a skin detection system as claimed in claim 1, wherein the uv assembly comprises:

the ultraviolet reflecting cup is directly or indirectly arranged on the light source base;

and the ultraviolet light LED is arranged in the reflecting cup.

4. A light source for a skin detection system as claimed in claim 3, wherein the uv reflecting cup is mounted obliquely outwardly.

5. A light source for a skin detection system as claimed in claim 3, wherein the light-reflecting surface of the uv-reflecting cup is part of an ellipsoid.

6. A light source for a skin detection system as claimed in claim 3, wherein the uv-reflective cup is mounted to the light source base by means of a uv substrate, and the uv LED is mounted on the uv substrate at the bottom of the uv-reflective cup.

7. The light source for a skin detection system as set forth in claim 3, wherein the UV light assembly further comprises a filter mounted over the opening of the UV reflector cup.

8. The light source of claim 1, wherein the plurality of UV light assemblies are arranged in a first circle and the plurality of white light assemblies are arranged in a second circle, the first circle being concentric with the second circle.

9. The light source of claim 1, wherein the plurality of white light components and the plurality of ultraviolet light components are alternately arranged on a same circle at equal intervals.

10. A skin detection system, comprising:

a housing assembly with an opening;

a control module mounted within the housing assembly for controlling the skin detection system; and the number of the first and second groups,

a light source as claimed in any one of claims 1 to 9, mounted at the opening;

and the view finding component of the shooting module is arranged at the opening of the light source base.

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