Light leakage structure, controller and physiotherapy equipment

Abstract

The utility model relates to the technical field of control display, in particular to a light leakage structure, a controller and physiotherapy equipment, which comprises a seat body and a plurality of identification parts arranged on the seat body, the seat body is provided with light leakage parts which are equal to the identification parts in number and are in one-to-one correspondence with the identification parts, and the seat body is connected with light equalizing parts which are equal to the light leakage parts in number and are in one-to-one correspondence with the light leakage parts. According to the scheme, the light leakage part and the identification part are arranged, information needing to be displayed by the light leakage structure can be clearly displayed, meanwhile, the light uniformizing part matched with the light leakage part is arranged, light generated by the light source is uniformly dispersed through the light uniformizing part, the display attractiveness is improved, a user can more comfortably observe the light, and therefore the user experience is improved. According to the scheme, the appearance attractiveness of the product can be improved, and the use comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control display, and in particular to a light leakage structure, a controller and a physiotherapy device. Background Art

[0002] Existing electrical equipment has various functions. For example, in actual application, it is necessary to control and display the working time, working power, power-on status and other functions of the electrical equipment, wherein the control and display are mainly completed through the controller. At present, the controller mainly includes a base, a control panel, a control component and a display component, wherein the control component is used to select and control different functions of the electrical equipment, and the display component is mainly used to display the current working status of the electrical equipment. For example, in actual application, it is necessary to control the working time of the electrical equipment, such as setting the working time of the electrical equipment to half an hour or one hour, etc. After selecting the corresponding function, the display component can display the selected function so that the user knows the specific working status of the electrical equipment.

[0003] The main display forms of display components in the prior art include digital tube display, indicator light display, etc. When indicator lights are used for display, a light source structure such as an LED lamp is usually fixed in the base body, and a light leakage channel such as a light leakage groove or a light leakage hole is opened on the base body. When a certain working state of the electrical equipment needs to be displayed, it is only necessary to control the light source structure corresponding to the position of the light leakage groove or the light leakage hole to emit light, so that the light generated by the light source can be observed by the user after passing through the light leakage channel. At this time, the user can judge the working state of the electrical equipment according to the corresponding light emission position.

[0004] Although the indicator light structure used in the prior art can effectively display the working status of electrical equipment, in order to facilitate installation and cost control and other factors, the light source used in the prior art is generally a point light source such as lamp beads. In order to improve the appearance of actual products, the light leakage channels are usually set to different sizes and shapes. This causes the light emitted by the point light source to be irradiated outside the base through the light leakage channel. The light intensity at different positions of the light leakage channel is different, which not only greatly reduces the aesthetics of the product and affects the market competitiveness of the product, but also makes the user feel uncomfortable when observing the light generated by the light source, affecting the comfort of product use. Utility Model Content

[0005] The utility model aims to provide a light leakage structure, a controller and a physiotherapy device, so as to eliminate the problem of poor light uniformity of the light leakage structure in the prior art, improve the appearance of the product and enhance the comfort during use.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a light leakage structure, including a base body and a plurality of identification parts arranged on the base body, the base body is provided with light leakage parts equal in number to the identification parts and corresponding one to one, and the base body is connected with light equalizing parts equal in number to the light leakage parts and corresponding one to one.

[0007] The principle and effect of this scheme are as follows: in this application, a plurality of identification parts and light leakage parts matched with the identification parts are arranged on the seat body, and the light source in the prior art is installed in the seat body, and the light leakage part provides a transmission channel for the light generated by the light source, so that the light generated by the light source can pass through the light leakage part and irradiate outside the seat body; at the same time, identification parts equal in number to the number of light leakage parts and corresponding one to one are arranged on the seat body, and the identification parts are used to identify a certain working state of the electrical equipment. When the light source at the position corresponding to the identification part is illuminated, the user can see the light leaked from the light leakage part at the identification part. At this time, the user can conveniently know the working state of the electrical equipment in the prior art by combining the light emitted by the light leakage part and the working state of the electrical equipment identified by the corresponding identification part, thereby realizing the display function of the display component in the prior art, with a simple structure and convenient identification, and is very convenient to use.

[0008] In addition, in the present application, a light-evening portion is connected to the seat body, and the light-evening portion and the light-leakage portion are arranged in one-to-one correspondence. When the light generated by the light source is irradiated out of the seat body through the light-leakage portion, the light will pass through the light-evening portion. At this time, the light-evening portion can disperse the light, so that the light is more uniform and soft when it is irradiated out of the seat body, effectively improving the aesthetics of the light display of the light leakage structure, making the product more competitive in the market; at the same time, due to the light-evening effect of the light-evening portion, the user is more comfortable when observing the light leaking from the light leakage portion, thereby effectively improving the comfort during the use of the product.

[0009] Preferably, as an improvement, the light leakage portion comprises a light leakage groove penetrating the seat body, and the cross-section of the light leakage groove is one or more combinations of circular, elliptical, fan-shaped or polygonal.

[0010] In this solution, the shape of the light leakage groove is set according to the functional requirements of the electrical equipment. For example, the light leakage groove corresponding to the display function of the switch can be set to a circle, while the light leakage groove corresponding to the display function of the time can be set to a rectangle, and the light leakage groove corresponding to other display functions can be set to a five-pointed star shape, a moon shape, etc.

[0011] Preferably, as an improvement, the identification portion includes a shading film and an identification symbol fixedly connected to the shading film, the shading film is fixedly connected to the outer wall of the base, and the shading film is provided with transparent areas equal in number to and corresponding to the light leakage portions.

[0012] In the present solution, the main structure of the identification part includes a shading film and an identification symbol on the shading film. When in use, the shading film only needs to be pasted to the base, and the identification symbol on the shading film can be used to identify the light leakage part. The identification symbol can be one or more combinations of text, letters, color blocks, and patterns. The identification symbol is set on the shading film. Compared with the method of setting the identification symbol directly on the base, the spraying process of the identification symbol is more convenient and the processing and manufacturing cost is lower. The identification part can be conveniently fixed to the base by pasting or the like, and the installation is very convenient.

[0013] In addition, in this solution, a transparent area is provided on the light-shielding film. By setting a plurality of transparent areas in correspondence with the light leakage part, when the light is irradiated from the light leakage part to the seat body, it can be emitted through the transparent area, so that the user can observe the light emitted by the light source. At the same time, in this solution, by setting the transparent area, not only can the light leakage part be sealed, so that the light emitted by the light source passes through the transparent area before being observed by the user, but the transparent area can also play a certain role in light uniformity and weakening the light, so that the user is more comfortable when observing the light; and by setting the transparent area to seal the light leakage part, dust and water can be prevented from entering the seat body, thereby protecting the components in the seat body; in addition, the light-shielding film in this solution has a light-shielding property, so that the light emitted from the light leakage part can only be irradiated from the transparent area, thereby further improving the recognition of the light irradiated from the transparent area, so that the user can more conveniently and clearly observe the light emitted by the light leakage part at the corresponding position.

[0014] Preferably, as an improvement, a frosted layer is provided on the transparent area, and the frosted layer forms the light-homogenizing portion.

[0015] In this solution, a frosted layer is provided on the transparent area, and the frosted layer is used to disperse the light emitted from the light leakage part, so that the emitted light is more uniform, and the light emitted from the transparent area is uniform and beautiful, which effectively improves the aesthetics of the light leakage structure and makes the user more comfortable when observing the light.

[0016] Preferably, as an improvement, a transparent light guide portion is fixedly connected inside the light leakage portion, and the transparent light guide portion is in contact with the light-shielding film.

[0017] In this solution, a transparent light-guiding portion is fixedly connected within the light-leaking portion, and the transparent light-guiding portion is utilized to guide the light generated by the light source, so that the light of the light source is more concentratedly transmitted to the light-leaking portion, thereby improving the utilization efficiency of the light source; at the same time, the transparent light-guiding portion is connected to the light-shielding film, so that the transparent light-guiding portion can support and protect the light-shielding film, so that the transparent area can stably transmit light for a long time.

[0018] Preferably, as an improvement, the transparent light-guiding portion comprises a transparent plastic piece fixedly connected to the light-leaking portion.

[0019] In this solution, a transparent plastic part is used as the transparent light guide part, which has a simple structure and is easy to process.

[0020] Preferably, as an improvement, the back side of the seat body is fixedly connected with partitions whose number is equal to the light leakage parts and which are arranged one-to-one, and the partitions are provided with light-through grooves connected with the light leakage parts, and all the partitions are connected as a whole.

[0021] In the present solution, a partition is provided to separate the light emitted by the light source, so that the light emitted by the light source enters the corresponding light leakage portion through the light-passing groove, thereby preventing the light from entering other adjacent light leakage portions and causing other light leakage portions to irradiate light, thereby preventing the user from mistakenly believing that the light source corresponding to the light leakage portion is emitting light and making an erroneous judgment, thereby effectively improving the accuracy of the light leakage structure during use. In addition, in the present solution, a partition is provided on the back side of the seat body, so that the partition can play a structural reinforcement role on the seat body similar to a reinforcing rib, thereby improving the overall strength of the seat body and making the seat body structure more stable.

[0022] Preferably, as an improvement, the light-evening portion comprises a light-evening transparent layer integrally formed on the base body and having a thickness less than that of the base body, the light-evening transparent layer is located in the light-leaking portion and seals the light-leaking portion, and the identification portion is integrally formed on the light-evening transparent layer.

[0023] In the present solution, a light-distributing layer having a thickness less than that of the seat body is integrally formed on the seat body. When the light source installed in the seat body emits light and the light is irradiated to the inner side of the seat body, since the thickness of the light-distributing layer is less than that of the seat body, when the user observes the seat body and the light-distributing layer from the outside of the seat body, it can be clearly observed that the brightness of the light-distributing layer is different from the brightness of other positions of the seat body, thereby conveniently knowing that the corresponding light source is in the on state, which is very convenient to use. The light-distributing layer in the present solution seals the light leakage part, which can effectively prevent the light generated by the light source from directly leaking from the light leakage part to the outside of the seat body. The light-distributing layer can distribute the light, thereby making the light-distributing layer form the light-distributing part. At the same time, the identification part is integrally formed on the light-distributing layer. When the light generated by the light source illuminates the light-distributing layer, the user can conveniently observe the identification part, thereby more conveniently and accurately knowing the working status of the electrical equipment.

[0024] A controller comprises the light leakage structure.

[0025] By providing a light leakage structure in the controller, the appearance of the controller is beautiful, and the user can observe the uniform light emitted by the light leakage part when using the controller, which makes it more comfortable to use.

[0026] A physical therapy device comprises the light leakage structure or the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model.

[0028] Figure 2 for Figure 1 Exploded diagram.

[0029] Figure 3 for Figure 1 Schematic diagram of another perspective of the exploded view.

[0030] Figure 4 It is a schematic diagram of the front side of the seat body in the first embodiment of the present utility model.

[0031] Figure 5 It is a schematic diagram of the back side of the seat body in the second embodiment of the present utility model.

[0032] Figure 6 It is a schematic diagram of the back side of the seat body in the third embodiment of the present utility model.

[0033] Figure 7 A schematic diagram of the front side of the seat body in the fourth embodiment of the present invention.

[0034] Figure 8 for Figure 7 Section view along AA.

[0035] The reference numerals include: seat body 1, light-shielding film 2, transparent area 201, identification symbol 3, light leakage slot 4, time light leakage slot 401, power light leakage slot 402, power light leakage slot 403, partition seat 5, light-through slot 501, transparent plastic part 6, light-distributing layer 7, and base 100. DETAILED DESCRIPTION

[0036] The following is further described in detail through specific implementation methods:

[0037] Embodiment 1

[0038] Embodiment 1 is basically as shown in the attached Figure 1 and Figure 2 As shown: a light leakage structure, including a base body 1, the base body 1 is provided with a plurality of identification parts and light leakage parts equal to and corresponding to the identification parts, wherein the identification parts include a light-shielding film 2 and an identification symbol 3 fixedly connected to the light-shielding film 2, the light-shielding film 2 is fixedly connected to the outer wall of the base body 1, and the light-shielding film 2 is provided with transparent areas 201 equal to and corresponding to the light leakage parts. Specifically, a film groove is integrally formed on the base body 1, and the light-shielding film 2 is adhesively fixed in the film groove. The thickness of the light-shielding film 2 is less than or equal to the depth of the film groove, so that after the light-shielding film 2 is fixed in the film groove, the top surface of the light-shielding film 2 is still located in the film groove, so as to avoid the top surface of the light-shielding film 2 protruding out of the film groove and being quickly worn during use.

[0039] In this embodiment, the light-shielding film 2 can be a transparent plastic film, and then ink is applied to all positions of the plastic film except for the transparent area 201 and the logo portion, so that a light-shielding film 2 with good light-shielding effect and a transparent area 201 that can transmit light can be obtained. In addition, when applying ink, ink is not applied to some positions or blocks of other colors are applied, so as to form the aforementioned logo symbol 3. The content of the corresponding identification symbol 3 is set according to the function that the light leakage structure needs to display. For example, in this embodiment, the identification symbol 3 includes "time" and "power", and in this embodiment, "time" is divided into four gears of "15", "30", "45", and "60", and the corresponding unit is "min", and "power" is divided into two gears of "high" and "low". In other embodiments other than this embodiment, the functional classification of the identification symbol 3, the number of gears in each classification, and the specific display form of the unit symbol in each gear can be set according to actual needs. For example, the function can be set to other functional symbols such as "brightness", and the number of each gear can also be set to multiple, for example, the "time" gear can be set to three gears, five gears or other gear numbers, or the "power" gear can be set to three gears of high, medium and low, or other gears; in addition, the specific display form of the unit symbol in each gear can also be set according to actual needs, for example, "min" is changed to "minutes" or "hours", and "high" and "low" in "power" can be set to "100%" and "50%" and other forms. Of course, the above only gives an example of display content and display form. In other embodiments other than this embodiment, as long as the identification symbol 3 can identify the light leakage structure, it belongs to the protection scope of this solution, and other setting forms will not be repeated here.

[0040] Combination Figure 1 , Figure 2 and Figure 3 The light leakage portion includes a light leakage groove 4 integrally formed on the base body 1, the light leakage groove 4 vertically penetrates the base body 1, and the cross section of the light leakage groove 4 is one or more combinations of a circle, an ellipse, a sector or a polygon. In this embodiment, combined with Figure 4 , the light leakage slots 4 include four time light leakage slots 401 on the left, two power light leakage slots 402 on the right, and a power light leakage slot 403 in the middle, the four time light leakage slots 401 and the two power light leakage slots 402 are arranged along the outline of the ball field, and the power light leakage slot 403 is located in the middle of the ball field outline. In other embodiments other than this embodiment, the cross-sectional shape of the light leakage slot 4 can be set to other forms according to the functional effect of the corresponding identification part, such as a moon shape, a five-pointed star shape, or other special-shaped structures, and the structural arrangement shape of all the light leakage slots 4 can be set according to actual needs, such as all or part of the light leakage slots 4 are surrounded by a circle, a square, etc., which will not be repeated here.

[0041] like Figure 1 As shown, the seat body 1 is connected with equal number of light-distributing parts and arranged one-to-one with the light-leaking parts. In this embodiment, a frosted layer is formed on the surface of the transparent area 201, so that the frosted layer forms the aforementioned light-distributing part. In this embodiment, the frosted layer is used to form the light-distributing part. When the light in the prior art is irradiated from the light-leaking groove 4 to the outside of the seat body 1, the light-distributing part is used to disperse the irradiated light, so that the user is more comfortable when viewing the light. By providing the light-distributing part, the appearance of the seat body 1 can also be improved, and the market competitiveness of the corresponding product can be improved. Specific implementation method:

[0043] When using the light leakage structure of this embodiment, the seat body 1 is fixedly connected to the base 100 by screws, and the seat body 1 and the base 100 form a box structure. The control board and the light source in the prior art are installed in the box body. In this embodiment, the light source adopts LED lamps, and the number of LED lamps is divided into multiple groups. The number of groups of LED lamps is equal to the number of light leakage parts and is set one by one. Each group includes at least one LED lamp. When in use, when the LED lamps in one group are turned on, the light generated by the LED lamps is irradiated out of the seat body 1 by the light leakage groove 4 of the corresponding light leakage part. The user can judge the state controlled by the control board by observing the light emitted by the corresponding light leakage groove 4 and the identification symbol 3 corresponding to the corresponding light leakage groove 4. For example, the control state corresponding to "45" and "high" is a time of 45 minutes, and the set power is a high power state.

[0044] A controller includes the above-mentioned light leakage structure, and a physical therapy device includes the above-mentioned light leakage structure or the above-mentioned controller. By setting the above-mentioned light leakage structure on the controller or the physical therapy device, it is more comfortable during use and the appearance quality of the corresponding product is higher.

[0045] Embodiment 2

[0046] The difference between the second embodiment and the first embodiment is that: Figure 5As shown, in this embodiment, the back side of the seat body 1 is fixedly connected with partitions that are equal in number to the light leakage parts and are arranged one-to-one, and the partitions are partition seats 5 integrally formed on the back side of the seat body 1, and light-through grooves 501 connected to the light leakage grooves 4 are integrally formed on the partition seats 5. The partition seats 5 are located between the back side of the seat body 1 and the light source, and the partition seats 5 are used to separate the light generated by the light source to avoid mutual interference between the light generated by adjacent light sources, so that the display function of the light leakage structure is clearer and more accurate, and the user experience is further improved; at the same time, in this embodiment, all the partition seats 5 are connected as one, that is, the partition seats 5 corresponding to "time" and "power" are connected in the shape of a football field, and the partition seats 5 corresponding to the energized light leakage grooves 403 are located in the middle position of the ring shape. The partition seats 5 can not only separate the light, but also improve the structural strength of the seat body 1, so that the seat body 1 can be used more stably.

[0047] Embodiment 3

[0048] The difference between the third embodiment and the first embodiment is that: Figure 6 As shown, in the present embodiment, a transparent light-guiding portion is fixedly connected in each light-leakage groove 4, and the shape and size of the transparent light-guiding portion are the same as and equal to the corresponding light-leakage groove 4, so that the transparent light-guiding portion fills the light-leakage groove 4. In order to facilitate processing and installation, the transparent light-guiding portion in the present embodiment is a transparent plastic part 6, and the transparent plastic part 6 is snapped into the light-leakage groove 4. One end of the transparent plastic part 6 is in contact with the light-shielding film 2, and the other end is close to the light source. When the light source is powered on and emits light, the light generated by the light source first irradiates the transparent plastic part 6, and then is irradiated by the transparent plastic part 6 through the light-leakage groove 4 to the transparent area 201, and finally is irradiated from the transparent area 201 to the outside of the seat 1.

[0049] In the present embodiment, by setting the transparent plastic part 6 structure, not only can the light generated by the light source be guided into the light leakage groove 4, so that the light generated by the light source can be more concentratedly transmitted into the light leakage groove 4, effectively improving the light utilization rate, but the transparent plastic part 6 can also disperse the light, so that the light can be more evenly transmitted into the light leakage groove 4. At the same time, the LED lamp with a bead-shaped structure in the prior art emits a point light source. For the light leakage groove 4 structure with a rectangular cross-section, when the light emitted by the LED lamp illuminates the rectangular light leakage groove 4, the light intensity of different parts of the light leakage groove 4 is different, affecting the display aesthetics of the light leakage part. In the present embodiment, by setting the transparent plastic part 6 to guide the light of the light source, the light can be more evenly transmitted to different positions in the light leakage groove 4. Furthermore, under the light-uniformizing effect of the frosted layer, the light is more evenly emitted from the seat 1, thereby effectively improving the user experience.

[0050] Embodiment 4

[0051] The difference between the fourth embodiment and the second embodiment is that the identification part in the second embodiment is a light shielding film 2 and an identification symbol 3 arranged on the light shielding film 2, and the light-distributing part is a frosted layer integrally formed on the transparent area 201. Figure 7 and Figure 8 The light-distributing portion includes a light-distributing translucent layer 7 which is integrally formed on the base body 1 and has a thickness less than that of the base body 1. The light-distributing translucent layer 7 is located in the light leakage groove 4 and completely seals the light leakage groove 4. The top surface of the light-distributing translucent layer 7 is flush with the outer side surface of the base body 1. The base body 1 and the light-distributing translucent layer 7 are both integrally formed of a plastic with certain light-transmitting properties. When the light source generates bright light and passes through the light leakage groove 4, the light passes through the light-distributing translucent layer 7, and the light-distributing translucent layer 7 can disperse the light.

[0052] When the user observes, on the one hand, since the thickness of the light-uniform translucent layer 7 is smaller than the thickness of the seat body 1, the light-uniform translucent layer 7 can clearly produce a light difference from the seat body 1 under the irradiation of light, so that the user can clearly and conveniently judge the light emitted from the corresponding light leakage groove 4; on the other hand, the light-uniform translucent layer 7 can disperse the light emitted from the light leakage groove 4, thereby improving comfort during use.

[0053] Meanwhile, the identification part in this embodiment is only the identification symbol 3, which is integrally formed on the side of the light-distributing and transparent layer 7 facing the inside of the base 1. During the molding process, the thickness of the pattern or text corresponding to the identification symbol 3 is less than the thickness of the light-distributing and transparent layer 7, so that the identification symbol 3 can be clearly seen when light is irradiated to the light-distributing and transparent layer 7. In this embodiment, the light-distributing part and the identification part are integrally formed on the base 1, which is simple to process and has a stable structure, and is more convenient and stable to use.

[0054] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

[0055] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

Claims

1. A light leakage structure, comprising a base, characterized in that: The seat body is provided with a plurality of identification parts and light leakage parts having the same number and one-to-one correspondence with the identification parts, and the seat body is connected with light equalization parts having the same number and one-to-one correspondence with the light leakage parts.

2. A light leakage structure according to claim 1, characterized in that: The light leakage portion comprises a light leakage groove penetrating through the seat body, and the cross section of the light leakage groove is one or a combination of circular, elliptical, fan-shaped or polygonal.

3. A light leakage structure according to claim 2, characterized in that: The identification part includes a shading film and an identification symbol fixedly connected to the shading film. The shading film is fixedly connected to the outer wall of the base body. The shading film is provided with transparent areas that are equal in number to the light leakage parts and correspond one to one.

4. The light leakage structure according to claim 3, characterized in that: A frosted layer is disposed on the transparent area, and the frosted layer forms the light-homogenizing portion.

5. The light leakage structure according to claim 3, characterized in that: A transparent light guide portion is fixedly connected inside the light leakage portion, and the transparent light guide portion is in contact with the light-shielding film.

6. The light leakage structure according to claim 5, characterized in that: The transparent light-guiding portion comprises a transparent plastic piece fixedly connected to the light-leaking portion.

7. The light leakage structure according to claim 1, characterized in that: The back side of the seat body is fixedly connected with partitions which are equal in number to the light leakage parts and are arranged one by one. The partitions are provided with light-through grooves which are connected with the light leakage parts. All the partitions are connected as a whole.

8. The light leakage structure according to claim 1, characterized in that: The light-distributing portion includes a light-distributing transparent layer integrally formed on the base body and having a thickness smaller than that of the base body; the light-distributing transparent layer is located in the light-leaking portion and seals the light-leaking portion; and the marking portion is integrally formed on the light-distributing transparent layer.

9. A controller, characterized in that: It comprises a light leakage structure as described in any one of claims 1-8.

10. A physical therapy device, characterized in that: It comprises a light leakage structure as described in any one of claims 1 to 8 or a controller as described in claim 9.

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