Sunbath equipment

Abstract

The sunbath equipment comprises a light channel, a light reflecting layer and a light uniformizing layer, an interlayer is formed between the light reflecting layer and the light uniformizing layer, one end of the light channel receives an external light source, and the other end of the light channel transmits light into the interlayer; the light uniformizing layer is responsible for receiving, transmitting, scattering or transmitting light from the light channel and / or the light reflecting layer; the light channel, the light reflecting layer and the light uniformizing layer work in a matched mode, and it is ensured that at least part of light irradiates out of the face where the light uniformizing layer is located in a uniform mode and with low intensity. The sunbath equipment can be accessed to sunlight through an optical fiber, is arranged between the skin and the dressing of a user, and can move in a small range along with the user and rotate at a full solid angle due to the flexible arrangement of an optical channel, so that the body of the user is allowed to be in various postures without hindering eating, reading, working at a desk and going to the toilet; the device can be applied to various occasions such as postoperative rehabilitation wards of hospitals, postpartum wards, nursing homes and schools, is beneficial to physical and psychological health of the public, and has certain practical and promotional value.

Description

Technical Field

[0001] The utility model relates to a sunbathing device, belonging to the technical field of health lighting. Background Art

[0002] As is well known, sunbathing is beneficial to human health. However, due to factors such as safety, warmth, privacy, and customs and cultures, some groups, such as parturients and the elderly, are sometimes not suitable to expose their skin outdoors to take sunbathing, and need to rely on devices such as special outdoor tents and sunbeds to achieve the purpose.

[0003] Figure 1 US Patent US5163192A "A Sunbathing Mat" is shown. This patent provides a mat for users to enjoy sunbathing outdoors. Users need to bare their skin and lie flat on it, which is still a relatively common and mainstream outdoor sunbathing method so far, but it cannot solve the above problems of safety, warmth, privacy protection, etc.

[0004] Figure 2 US Patent US3536905A "Sunbathing Hood" is shown. This patent provides a sunbathing product for indoor use that simulates sunlight with artificial lights. The product includes an artificially manufactured flexible dome roof, and uses artificial lamps to irradiate light inside it; when in use, users are inside it and expose their skin to receive the light irradiation. Since this patent is for indoor use, it solves the problems of heat preservation and privacy, but its defect is that it cannot provide real sunlight irradiation, and users cannot move outside the device during the process of receiving light irradiation.

[0005] Figure 3 US Patent US6939366B2 "A Component Used as a Sunbathing Spa and Sauna" is shown. This component is made of lightweight materials and includes a comfortable air-conditioning system, and is placed for outdoor use. When in use, users need to bare the skin on their backs and lie prone inside the frame of the component. This patented product solves the problem of heat preservation, but still involves the privacy problem outdoors, and users cannot move outside the device during the process of taking sunbathing, and their range of movement is greatly restricted.

[0006] As shown by the above three existing patented technologies, when using a sunbathing device, users need to remove their clothes and expose their skin in an open and visible space to receive light irradiation; and during this process, users need to keep their positions relatively fixed and cannot move around randomly. So far, there has not been a device in the market that can provide sunbathing irradiation to users without exposing their skin in an open and / or visible space, nor has there been a device that can move in all-round solid angles following users and provide uninterrupted sunlight irradiation. Summary of the Utility Model

[0007] The present utility model aims to solve the above problems or make up for relevant gaps, and proposes a sunbathing device which can access sunlight and be placed between the patient's skin and clothing, allowing the skin to receive sunlight at a close distance and playing the role of sunbathing.

[0008] The technical solution adopted by the present utility model is as follows:

[0009] A sunbathing device includes a light channel, a reflective layer and a light homogenizing layer; both the reflective layer and the light homogenizing layer are planar or curved substances, and a sandwich layer is formed between the two; the light channel is arranged between the sandwich layer formed by the reflective layer and the light homogenizing layer, or is placed within the reflective layer or the light homogenizing layer; one end of the light channel receives light close to or equivalent to the sunlight spectrum from outside the sunbathing device and allows it to propagate along the light channel, and the other end enters the sandwich layer and forms a terminal; the terminal or outer surface of the light channel can emit light within the sandwich layer, or within the reflective layer and / or the light homogenizing layer; the surface of the reflective layer facing the sandwich layer has the function of refracting, scattering or reflecting light; the light homogenizing layer is a substance with the functions of light scattering, reflection, refraction or transmission, used to conduct the light from the light channel and / or the reflective layer, or to scatter or deflect these lights; the setting modes of the light channel, the reflective layer and the light homogenizing layer restrict and form a limited light running space, which ensures that most of the light emitted from the light channel and its reflected light only propagate and / or turn within this space, or escape from the light homogenizing layer, realizing the irradiation function completely equivalent to or approximate to sunlight, while only a very small amount of light energy escapes from the edge of the light channel or the sandwich layer; the above settings ensure that the maximum intensity of the light escaping from the light homogenizing layer is much lower than the maximum intensity of the light provided by the light channel to the device, and also much lower than the intensity of the light received by the light channel from outside the sandwich layer.

[0010] Further, the light channel is a solid or hollow waveguide channel.

[0011] Further, the light homogenizing layer can be a strip-shaped, sheet-shaped or flocculent transparent or semi-transparent substance.

[0012] Further, the light channel is connected to the substance forming the light homogenizing layer.

[0013] Further, the edge of the sandwich layer has an enclosing structure.

[0014] Further, the sunbathing device contains modular splicing interfaces and is installed on the surface of the sandwich layer, and the disassembly, splicing and combination between multiple devices can be realized through the modular splicing interfaces.

[0015] Further, the sunbathing device contains one or several of a light sensor, a temperature sensor, a sound and light auxiliary interaction device, and a processor.

[0016] Furthermore, an adjustable switch is provided on the light channel of the sunbathing device.

[0017] Furthermore, the reflective layer of the sunbathing device is flexible.

[0018] Furthermore, the light homogenizing layer of the sunbathing device is flexible.

[0019] Furthermore, the light channel of the sunbathing device is porous.

[0020] Furthermore, the light channel of the sunbathing device is a flexible waveguide channel, or a waveguide channel formed in a linear or disc-shaped distribution in the sandwich layer.

[0021] Furthermore, heat conduction or heat dissipation facilities are provided around the light channel of the sunbathing device.

[0022] Furthermore, the sunbathing device further includes a light concentrating waveguide system capable of providing sunlight thereto and the waveguide channels contained therein, and the average intensity of the light emitted from the light homogenizing layer is not greater than 4W / (K*D*D*N*π); moreover, when the thickness of the sandwich layer formed by the reflective layer and the light homogenizing layer is less than or equal to F*(1 - 1 / √n), and when the theoretical light transmittance of the light homogenizing layer is 1 and K is also 1, the intensity of the light escaping from the light homogenizing layer is still not greater than 1 / N of the maximum light intensity emitted from the waveguide channel; where W is the total energy of the light emitted from the waveguide channel in the sandwich layer formed by the reflective layer and the light homogenizing layer (unit: watt), D is the diameter of the circular waveguide channel contained in the waveguide system, N is the light concentration multiple of the light concentrating waveguide system, K is the overall transmission efficiency of the waveguide channel, F is the light concentration focal length of the light concentrating waveguide system, n is the square root of N, and π is the pi.

[0023] Furthermore, the sunbathing device including the light concentrating waveguide system further includes an additional optical unit, which is placed in the sandwich layer formed by the reflective layer and the light homogenizing layer, and is responsible for diffusing or expanding the light from the light channel in a way of blocking, reflecting, transmitting, refracting, scattering or a combination thereof, so as to reduce its intensity, and making the intensity of the light component finally escaping through the light homogenizing layer lower than that of the light received by the light channel, that is: when the theoretical transmission efficiency of the light concentrating waveguide system is 1, if the radiation energy intensity of the light component finally escaping through the light homogenizing layer is P, and the radiation energy intensity of the light received by the light channel is Q, then the ratio of the two, that is, Q / P, should be greater than or equal to 0.2*Y*N; where Y is the maximum direct solar radiation power number (unit: watt per square meter) at the location where the sunbathing device is applied, and N is the light concentration multiple of the light concentrating waveguide system.

[0024] Furthermore, the sunbathing device further includes a frame or a framework for accommodating or fixing the reflective layer, the light homogenizing layer and the light channel, so as to demarcate the boundary range of the sunbathing device.

[0025] A sunbathing device of the present utility model configures an optical channel in a limited sandwich space constructed by a reflective layer and a light homogenizing layer, and sets the materials, shapes, positional arrangements, and specifications of the reflective layer, light homogenizing layer, and optical channel in a manner that conforms to optical laws, so that sunlight can be introduced and placed between the user's skin and clothing, driving the light to emit from the device with a lower intensity, a more uniform form, and a more appropriate direction, irradiating the skin and / or clothing surface at a short distance, and playing the role of sunbathing. This device can move within a small range following the user, facilitating the user to enjoy sunbathing. It can be applied in occasions such as postoperative rehabilitation wards in hospitals, postpartum wards, nursing homes, schools, etc., which is beneficial to physical and mental health and has certain practical and promotional value. Description of the Drawings

[0026] Figure 1 : A sunbathing device of the prior art;

[0027] Figure 2 : A sunbathing device of another prior art;

[0028] Figure 3 : A sunbathing device of yet another prior art;

[0029] Figure 4 : Overall schematic diagram of the sunbathing device of Embodiment 1;

[0030] Figure 5 : Schematic diagram of the usage method of the sunbathing device of Embodiment 1;

[0031] Figure 6 : Split structure diagram of each component of the sunbathing device of Embodiment 1;

[0032] Figure 7 : Schematic diagram of the working principle of the sunbathing device of Embodiment 1;

[0033] Figure 8 : Split structure diagram of each component of the sunbathing device of Embodiment 2;

[0034] Figure 9 : Schematic diagram of the working principle of the sunbathing device of Embodiment 2;

[0035] Figure 10 : Sunbathing device of Embodiment 3 (including modular connection device);

[0036] Figure 11 : Sunbathing device of Embodiment 4;

[0037] Figure 12 : Sunbathing device of Embodiment 5;

[0038] Figure 13: Plan view of the sunbathing device of Example VI.

[0039] Figure 14 : Cross-sectional view of the sunbathing device of Example VI.

[0040] Figure 15 : Perspective view of the sunbathing device of Example VII;

[0041] Figure 16 : Top view of the sunbathing device of Example VII. Detailed implementation mode

[0042] The following will make the following detailed description of the present invention with reference to the accompanying drawings.

[0043] Example I

[0044] A sunbathing device, as Figure 4 shown, includes a reflective layer 1, a light homogenizing layer 2, and a light channel 3. A sandwich layer 4 is formed between the reflective layer 1 and the light homogenizing layer 2, and the planar size of the sandwich layer 4 is significantly larger than its thickness. In this embodiment, the thickness of this sandwich layer is about 10 mm, but its planar size is at least 300 mm by 300 mm. The surface of the reflective layer 1 facing the light homogenizing layer 2 has a light reflection function. The light channel 3 is composed of a number of flexible and transparent solid or hollow light conduits connected in series, and its inlet end 5 is connected to a light source at a distance, and the other end 6 enters the sandwich layer 4. Multiple sections of light conduits are connected in series inside the sandwich layer 4 to form a disk ring 7, that is: the light channel 3 is arranged in a linear and disk-shaped form in the above-mentioned sandwich layer 4, forming a relatively large light-emitting area. In this embodiment, the light homogenizing layer 2 is made of a sheet-like transparent flexible material with a light scattering function, which is responsible for receiving, conducting, or scattering the light from the light channel. The reflective layer 1, the light homogenizing layer 2, and the light channel 3 cooperate with each other to ensure that at least part of the light irradiates from the surface where the light homogenizing layer 2 is located.

[0045] Figure 5 Shows in detail Figure 4 each part included in the embodiment shown in Figure 5 As shown, the reflective layer 1 is on the top layer, the light homogenizing layer 2 is on the bottom layer, and the light channel 3 composed of flexible and transparent solid light conduits is continuously coiled into a square shape and placed inside the sandwich layer 4 formed by the reflective layer 1 and the light homogenizing layer 2. In this embodiment, the periphery of the sandwich layer 4 has an enclosing structure, and this enclosing structure is configured as a frame 8 made of flexible material, and the inner surface of the frame 8 can be configured with a surface and / or structure with the function of reflecting light. In this embodiment, the square-shaped light channel 3 can be surrounded by transparent heat-conducting silica gel, and the heat-conducting silica gel can be connected to the reflective layer 1, the light homogenizing layer 2, and the frame 8, and transfer the heat contained in the light to the reflective layer 1, the light homogenizing layer 2, and the frame 8 for heat dissipation.

[0046] Figure 6 shows in detail Figure 4 the working principle of the first embodiment shown in Figure 6 As shown, the optical channel 3 is composed of a flexible and transparent hollow optical duct. Its inlet end 5 is connected to a light source at a distance, and the other end 6 enters the interlayer 4. Moreover, many solid or hollow optical ducts are connected in series to form a loop-shaped coil 7 in the shape of a Chinese character "hui". The sunlight entering from the inlet end 5 of the optical channel 3 can travel along the loop-shaped coil 7 and shoot outwards. The light emitted from the coil 7, part of it reaches the reflective layer 1 upwards and is reflected onto the light homogenizing layer 2, and then is further scattered by the light homogenizing layer 2 and evenly shoots downwards; another part of the light directly shoots downwards and reaches the light homogenizing layer 2, and then is further scattered by the light homogenizing layer 2 and evenly shoots downwards. Therefore, most of the light entering the optical channel 3 will experience the above-mentioned repeated reflection and divergence optical path processes and then shoot out of the light homogenizing layer 2 in a relatively uniform state. The intensity of the light is reduced and homogenized in this process. It should be noted that in order to reduce the light intensity and shoot out of the light homogenizing layer 2 in a relatively homogenized form, there are many other methods including but not limited to those disclosed in the following embodiments.

[0047] Figure 7 shows the usage method of the sunbathing device of the first embodiment. As Figure 7 shown, a dressed lady sits on a stool indoors to take a sunbath. The method is to fix the sunbathing device of the first embodiment on her back, let the light homogenizing layer 2 face the skin side, and let an optical fiber 9 for transmitting sunlight be connected to the optical channel 3 to transmit sunlight into it. Since all components of the sunbathing device can be flexibly or softly spliced, and the material can transmit light in the ultraviolet and visible bands, the whole device is also flexible and can provide light in the ultraviolet and visible bands, and can be conveniently attached or bound to the user's back. In this embodiment, because the overall thickness of the sunbathing device is not large, the thickest part is only 1 to 2 centimeters, and the user can put on an outer garment 10 outside it. At the same time, since the length of the optical fiber 9 has a certain margin, and moderate bending will not affect its conduction of sunlight, the user can move freely or change postures within a relatively large indoor range when using the sunbathing device. Due to the flexible setting of the working mode of the optical channel, the user can rotate 360 degrees in three dimensions (that is, within the range of the solid angle freedom of 0 to 4π), and perform actions such as turning over, lying prone, lying supine, lying on the side, sitting, standing, etc., without affecting the sunlight entering the device, being diluted and homogenized by it and then irradiating the skin, achieving the sunbathing effect. Due to the function of the outer garment 10, the user's privacy is protected and the body temperature is also well protected.

[0048] Embodiment Two

[0049] Figure 8 shows the sunbathing device of the second embodiment.

[0050] A sunbathing device, such as Figure 8 shown, includes a reflective layer 1, a light homogenizing layer 2, and a light channel 3. Both sides of the reflective layer 1 have the function of light reflection. A sandwich layer 4 is formed between the reflective layer 1 and the light homogenizing layer 2. The planar size of the sandwich layer 4 is significantly larger than its thickness. The light channel 3 is composed of flexible and transparent solid light pipes. Its inlet end 5 is connected to a light source at a distance, and the other end 6 enters the above-mentioned sandwich layer 4. The light channel 3 is continuously connected and extended by each section of solid light pipes in the sandwich layer 4 to form a disc ring 7. Different from Embodiment 1, in this embodiment, the reflective layer 1 is a flat grid fiber woven fabric connected and woven by a flexible reflective material with the function of light reflection, which is responsible for reflecting the light from the light homogenizing layer 2 or the light channel 3 and the disc ring 7. Moreover, different from Embodiment 1, in this embodiment, the light homogenizing layer 2 is a grid-like thick fiber woven fabric connected and woven by transparent flexible solid light pipes with the function of light scattering. It has the function of light scattering and is responsible for receiving, conducting, or scattering the light from the light channel 3 and the disc ring 7. The reflective layer 1, the light homogenizing layer 2, and the light channel 3 cooperate to ensure that at least part of the light irradiates from the surface where the light homogenizing layer 2 is located.

[0051] Another difference from Embodiment 1 is that in this embodiment, since both the reflective layer 1 and the light homogenizing layer 2 are woven fabrics, the edges of the two can be flexibly connected by the woven fabric, so there is no need to set the frame 8 made of flexible material used in Embodiment 1.

[0052] Another difference from Embodiment 1 is that in this embodiment, the end 11 of the disc ring 7 is connected to one end 12 of the woven fabric of the light homogenizing layer 2, so that the light inside the disc ring 7 can enter the network inside the woven fabric of the light homogenizing layer 2, playing a role of further homogenizing and diffusing.

[0053] Figure 9 Details show Figure 8 the working principle of Embodiment 2 shown in Figure 9 shown. As Figure 7The optical fiber 9 shown in [figure] enters the interlayer 4 at the other end 6. In the interlayer 4, many flexible and bent solid light pipes are connected end to end to form a coil 7. The sunlight entering from one end 5 of the light channel 3 can travel along the coil 7 and shine outwards. The light emitted from the coil 7, a part of it reaches the reflective layer 1 upwards and is reflected onto the light homogenizing layer 2, and after being further scattered by the light homogenizing layer 2, it is evenly emitted downwards; another part of the light is directly emitted downwards and reaches the light homogenizing layer 2, and after being further scattered by the light homogenizing layer 2, it is evenly emitted downwards. There is also a part of the light that is emitted from the end 11 of the coil 7 and enters one end 12 of the fabric of the light homogenizing layer 2; this part of the light is further divided into three components. Component one enters the network of the fabric of the light homogenizing layer 2 and travels along the network; component two passes through the light homogenizing layer 2 and is emitted downwards; component three passes through the light homogenizing layer 2 and is emitted upwards, then turns downwards after hitting the reflective layer 1, and hits and passes through the light homogenizing layer 2 again, achieving downward emission. In short, most of the light entering the light channel 3 through the inlet end 5 will experience the above-mentioned relatively complex optical path fusion process and then be evenly emitted downwards from the light homogenizing layer 2 in a relatively uniform state, reaching the outer surface layer 13 of the human body, serving the purpose of sunbathing and irradiating the human eye 14. The light reaching the human eye 14 is natural sunlight with a full spectrum, which can serve the purpose of visual and non-visual lighting.

[0054] Embodiment Three

[0055] Figure 10 Shows the sunbathing device of Embodiment Three. The difference between Embodiment Three and Embodiment One is that the sunbathing device contains modular splicing interfaces and is installed on the surface of the interlayer, specifically the surface of the reflective layer 1 facing outside the interlayer. The modular splicing interface in this embodiment is specifically configured as a soft "nylon hook and loop fastener" (or "hook and loop tape") 15 provided on the upper surface of the reflective layer 1 (i.e., the surface facing outside the interlayer). The surface of the nylon hook and loop fastener 15 contains a dense velvet surface and / or micro plastic barbs, which is convenient for pressing. When pressing, two device monomers shown in Embodiment One can be combined together, and after tearing, the two can work separately. Since the sunbathing device proposed by the present utility model can be entirely made of flexible materials, after appropriate splicing in the above manner, Embodiment Three can form a cylindrical shape, suitable for being placed around the thigh and / or calf, increasing the area of the human body receiving sunlight irradiation. When several device monomers shown in Embodiment One are combined together, they each receive sunlight intake from different sources. Figure 12 Shows a source device that can provide such sunlight.

[0056] Embodiment Four

[0057] Figure 11Shows the sunbathing device of Embodiment 4. The difference between Embodiment 4 and Embodiment 1 is that it includes a light sensor 16 and a temperature sensor 17, which are responsible for sampling the light intensity in the sandwich layer 4 and the temperature near the light homogenizing layer 2; it also installs an acoustic-optic auxiliary device 18, which can emit light or sound, play a role in interacting with the user, and realize functions such as beeping timing and auxiliary lighting; it also installs an adjustable switch 19. In this embodiment, the adjustable switch 19 is installed between the entrance end 5 of the light channel 3 and the optical fiber 9, and is responsible for controlling the on and off of the optical path between the two. The sunbathing system shown in this embodiment is also configured with a microprocessor 20, which connects and receives signals from the light sensor 16, temperature sensor 17, acoustic-optic auxiliary device 18, and adjustable switch 19, and can send control instructions to them after processing. For example, in some cases, when the sunbathing time set by the user is 2 hours and it reaches, the acoustic-optic auxiliary device 18 will emit a voice or beeping sound under the control of the microprocessor 20 to remind the user that the time has arrived. At the same time, the adjustable switch 19 will call the relevant optical machine structure to disconnect the connection between the entrance end 5 of the light channel 3 and the optical fiber 9, so as to cut off the optical path and end the sunbathing as scheduled. Figure 12 The included embodiments show how the optical fiber 9 obtains and transmits sunlight.

[0058] Figure 11 The shown sunbathing device of Embodiment 4 also includes a heat dissipation facility 21 wrapped around the light channel 3 and its extension section. In this embodiment, the heat dissipation facility 21 is a transparent heat-conducting silica gel, which contacts and exchanges heat with the reflective layer 1, and also connects and fixes the light channel 3 and the reflective layer 1.

[0059] Embodiment 5

[0060] Figure 12 Shows the sunbathing device of Embodiment 5. As Figure 12As shown, different from Embodiments 1 to 4, the device further includes a concentrating optical waveguide device A that provides sunlight. The concentrating optical waveguide device A includes a pair of concentrating parabolic mirrors with a sun-tracking function and a circular optical fiber 9 serving as a waveguide channel; the diameter of the circular optical fiber 9 is D. The compression ratio (i.e., the concentrating multiple) of the pair of concentrating parabolic mirrors for sunlight is N; the pair of concentrating parabolic mirrors continuously convey the concentrated sunlight source into the optical fiber 9; then, the optical fiber 9 is connected to the inlet end 5 of the optical channel 3 through an adjustable switch 19, sending the sunlight with a higher intensity into the sandwich layer 4, and the overall light transmission efficiency of the optical fiber 9 is K. In this embodiment, to ensure that the average intensity of the light emitted from the light homogenizing layer 2 is not greater than the radiation intensity of outdoor natural light, the area of the light homogenizing layer 2 should be large enough to ensure that the average intensity of the light emitted from the light homogenizing layer 2 is not greater than 4W / (K*D*D*N*π). Moreover, in this embodiment, the area of the light homogenizing layer 2 is set to be large enough to ensure that even if the light homogenizing layer 2 has no attenuation effect on light (i.e., assuming the light transmittance of the light homogenizing layer 2 is 1), and the thickness of the sandwich layer 4 is less than or equal to F*(1 - 1 / √n), the intensity of the light escaping from the light homogenizing layer 2 is still less than or equal to 1 / N of the maximum light intensity entering the sandwich layer from the waveguide channel; where F is the concentrating focal length of the concentrating optical waveguide system, and n is the square root of N. The arrangement of the optical channel 3 in the sandwich layer must be able to ensure that the light emitted from it is sufficiently dispersed to meet the above conditions. There are many types of concentrating optical waveguide devices with a sun-tracking function similar to device A, among which the more well-known ones include the HIMAWARI ("Sunflower") system in Japan and the PARANS system in Sweden, etc., which all have the same parameters or concepts of concentrating multiple N, waveguide channel diameter D, concentrating focal length F, and light transmission efficiency K.

[0061] Embodiment 6

[0062] Figure 13 and Figure 14 respectively show the plan top view and the cross-sectional view of the U cross-section of the sunbathing device in Embodiment 6. Figure 13 The plan top view of this embodiment is shown, that is, from the perspective where the reflective layer 1 (the transparent strip-shaped shaded area) is closer to the observer and the light homogenizing layer 2 (the gray shaded area) is farther from the observer, the embodiment is observed from above. As shown in the figure, in this embodiment, the optical channel 3 is a flexible light guide tube, one end of which is outside the sandwich layer formed by the reflective layer 1 and the light homogenizing layer 2, and the other end enters and extends into it, forming a disk ring similar to a rectangle and having a terminal. The flexible light guide tube is configured to emit light not only from the terminal but also evenly from the surrounding. The position of the cross-section U is shown in the figure for better understanding Figure 14 . Figure 14 Details disclose the positional relationship between the optical channel 3 and the sandwich layer formed by the reflective layer 1 and the light homogenizing layer 2.

[0063] Figure 14It is a U-sectional view of the sunbathing device of this embodiment. As shown in the figure, in this embodiment, the light homogenizing layer 2 is made of a polymer compound plate with a certain thickness, and its edge is connected to the edge of the curved reflective layer 1, and the two form a closed and finite thin-flake sandwich space. The internal light conductivity of the polymer compound used in the light homogenizing layer 2 is not isotropic, but is set to be able to absorb at least part of the light from the upper and lower surfaces, and converge it onto the linear edge 100 around the plate and emit it. The light channel 3 is spirally arranged near the edge 100 around the light homogenizing layer 2. Because the light path is reversible, the light homogenizing layer 2 can absorb the light from its surrounding linear edge 100 and diverge it from its upper and lower surfaces, and only the light diverged from the lower surface can directly reach the irradiated object to play the role of sunbathing.

[0064] Embodiment Seven

[0065] Figure 15 Shows a three-dimensional view of the sunbathing device of Embodiment Six. Embodiment Six is generally similar to Figure 5 the structure of Embodiment One shown, and is used to be placed on the human skin surface for irradiation to achieve the purpose of sunbathing. In this embodiment, the reflective layer 1 and the light homogenizing layer 2 form a sandwich, and a frame 8 is arranged around the edge of the sandwich. The light channel 3 enters the sandwich from the frame 8. Since the inner surface of the frame 8 is set to have a light reflection function and can be regarded as an extension of the reflective layer 1, the light channel 3 can also be regarded as entering the sandwich from the reflective layer 1.

[0066] Compared with Embodiment One, this embodiment has at least two differences. First, the light channel 3 is shorter; second, an additional optical unit 22 is arranged near the other end 6 of the light channel 3. The additional optical unit 22 is located between the sandwich formed by the reflective layer 1 and the light homogenizing layer 2. In this example, the reflective layer 1, the light homogenizing layer 2 and the frame 8 are connected and form the boundary range of the device by themselves, without using other additional fixing parts or frames. However, in other embodiments, additional fixing mechanical components or frames can be used to firmly connect the reflective layer 1, the light homogenizing layer 2 or the light channel 3 and the frame 8, and safety use signs and / or boundary descriptions should be clearly shown on the outer surface of the frame.

[0067] As Figure 15 and 16As shown, in this embodiment, the surface of the reflective layer 1 facing the interlayer is formed by sputtering and depositing metal molecules with high reflectivity, having relatively high light reflection ability; the frame 8, as the edge and extension of the reflective layer 1, closes around the periphery of the interlayer, with an L-shaped cross-section, and its inner surface is also formed by sputtering and depositing metal molecules with high reflectivity, having relatively high light reflection ability; the light homogenizing layer 2 represented by the shaded part in the figure is formed by a transparent molecular substance with high light transmittance, having relatively high light transmission or scattering ability; the additional optical unit 22 is a concave lens formed by processing a transparent molecular substance with light refraction function, which is responsible for diffusing the light beam emitted from the other end 6 of the light channel 3. The reflective layer 1 and its extension part, the light homogenizing layer 2, and the light channel 3 define a light running space, ensuring that the light from the light channel 3 only propagates within this space, or escapes from the light homogenizing layer 2 to achieve the sunlight irradiation function, and very little can escape through the edge of the light channel or the interlayer. Even if the light irradiated on the skin is reflected back by the skin, it will be reflected back to the skin by this device again. This setting ensures that most of the total energy of the light radiated from the light homogenizing layer 2 accounts for the total energy of the light emitted from the other end 6 of the light channel 3 on the premise of ensuring that the light intensity emitted from the light homogenizing layer 2 is weak, achieving a relatively full utilization of solar energy, and thus better ensuring the effect of sunbathing.

[0068] Figure 16 In a top view, that is, from the perspective where the reflective layer 1 is closer to the observer and the light homogenizing layer 2 is farther away, it is explained how the concave lens as the additional optical unit 22 diffuses the light beam 23 from the light channel 3 in this embodiment. As Figure 14 shown, a pair of dotted circles magnify and show the details of the above light diffusion process, that is: after the light beam 23 emitted from the other end 6 of the light channel 3 reaches the concave lens as the additional optical unit 22, it is expanded into a light beam 24 with a larger diffusion angle, and a considerable part of the larger light beam 24 directly passes through the light homogenizing layer 2 and is emitted to achieve the purpose of sunlight irradiation. It is not difficult to understand that because the reflective layer 1, the light homogenizing layer 2, the frame 8, and the light channel 3 define a light running space, ensuring that the light from the light channel 3 only turns within this space or is emitted from the light homogenizing layer 2, the rest of the larger light beam 24 is reflected by the light homogenizing layer 2 and the frame 8 and will eventually pass through the light homogenizing layer 2 and be emitted to achieve the purpose of sunlight irradiation.

[0069] The above settings ensure that although the thickness of the interlayer is relatively small, for example, only 1 to 2 centimeters, the maximum light intensity P escaping from the light homogenizing layer 2 is much lower than the maximum light intensity Q of the light beam 23 emitted from one end 6 of the light channel 3. For example, the difference between the two can reach ten thousand times or more, meeting the condition that Q / P is greater than or equal to 0.2 * Y * N; where Y is the maximum direct solar radiation power number (unit: watts per square meter) at the location where the sunbed device is applied, and N is the light concentration multiple of the light concentrating waveguide system.

[0070] For example, in the Beijing area, when Y takes a value of 800 and N takes a value of 500, Q / P > 0.2 * Y * N = 80000, that is, P is less than or equal to one eight - hundred - thousandth of Q. Therefore, in this embodiment, the sunbed device dilutes the high - intensity sunlight provided by the light concentrating waveguide system by eight hundred thousand times and then provides it to the skin for irradiation, ensuring the safety of irradiation. Most of the light entering the light channel 3 will experience the above - mentioned repeated reflection and divergence optical path processes and then emit out of the light homogenizing layer 2 in a relatively uniform manner. Although the intensity of this light is reduced and homogenized during this process, the total amount is not significantly lost, and most of it is used for the purpose of sunbed irradiation.

[0071] In short, in order to make the light emit out of the light homogenizing layer 2 in a more uniform and lower - intensity form, in addition to using means such as controlling and adjusting the thickness, shape, material of the interlayer 4, and the arrangement method of the light channel 3, there are also other optical methods including but not limited to those disclosed in the above - mentioned embodiments. These methods can dilute the sunlight from the light channel 3 in ways including but not limited to blocking, reflection, transmission, refraction, scattering, or a combination thereof, so as to achieve the purpose of reducing its intensity. Since the light - emitting area of this device can closely fit the skin, the phenomenon that the skin reflects part of the sunlight during the use of traditional or existing sunbed devices is eliminated. Therefore, in the case of limited sunlight, its bath therapy effect can be guaranteed or improved to a certain extent. For the population most sensitive to sunbed treatment, such as newborns, when the above - mentioned theoretical dilution degree is the same for sunlight of each wavelength band, no matter how high the light intensity in the light channel 3 is, the power density of the light escaping from the surface of the light homogenizing layer 2 and irradiating the skin surface should be controlled to be less than or equal to the theoretical value of 5 watts per square meter.

[0072] A sunbed device of the present utility model, compared with traditional sunbed devices, its technical effects are mainly reflected in the following four aspects of advantages that can be achieved simultaneously:

[0073] (1) Protect the privacy of users while taking a sunbed

[0074] A sunbathing device of the present utility model can be relatively thin, enabling it to access sunlight and be placed between the patient's skin and clothing. Therefore, users do not need to directly expose a large area of their skin to sunlight in indoor or outdoor spaces, presenting their skin within the possible view of others, which solves the privacy problem to a certain extent.

[0075] (2) Protect the user's body temperature while sunbathing

[0076] Since the sunbathing device of the present utility model can access sunlight and be placed between the patient's skin and clothing, users do not need to expose their skin outdoors. Therefore, especially in winter, users can choose to stay in a warm indoor environment and wear multiple layers of warm clothing outside this sunbathing device, which solves the warmth retention problem well to a great extent and protects the user's body temperature.

[0077] (3) Allow small - scale movement while sunbathing

[0078] The sunbathing device of the present utility model, due to the flexible setting of the light - channel working mode, can move within a small range following the user and support flipping actions within a solid angle (steradian) of 4π under the premise of providing real natural sunlight irradiation. When in use, it does not affect users' activities such as eating, reading, turning over, pacing, desk work, sitting, standing, taking a bath, watching movies, etc. It is convenient for the general public to enjoy sunbathing and can be applied in occasions such as postoperative rehabilitation wards in hospitals, postpartum wards, nursing homes, schools, high - end tourist venues, etc., which is beneficial to the physical and mental health of users and has certain practical, promotional, and exemplary values.

[0079] (4) Relatively safe

[0080] The sunbathing device of the present utility model provides real natural sunlight irradiation, is non - magnetic, non - source, and non - electric, suitable for various environments of high temperature, low temperature, or humidity. Compared with sunbathing systems relying on artificial power sources, it is safer for children and adults to a certain extent.

[0081] The present utility model is not limited to the embodiments discussed above. The above description of the specific embodiments aims to describe and illustrate the technical solutions related to the present utility model. Obvious transformations, substitutions, or combinations based on the inspiration of the present utility model should also be considered to fall within the protection scope of the present utility model. The above - mentioned specific embodiments are used to disclose the best implementation methods of the present utility model so that ordinary technicians in the art can apply various embodiments and various alternative methods of the present utility model to achieve the purpose of the present utility model.

Claims

1. A sunbathing device, characterized in that: It includes a light channel, a reflective layer and a uniform light layer; the reflective layer and the uniform light layer are both plane or curved materials, and a sandwich is formed between the two; the light channel is arranged between the sandwich formed by the reflective layer and the uniform light layer, or is placed in the reflective layer or the uniform light layer; one end of the light channel receives light close to or equal to the sunlight spectrum from the outside of the sunbathing equipment and allows it to propagate along the light channel, and the other end enters the sandwich and forms a terminal; the terminal or outer surface of the light channel is in the sandwich, or can emit light in the reflective layer and / or the uniform light layer; The surface of the reflective layer facing the interlayer has the function of refracting, scattering or reflecting light; the uniform light layer is a material with light scattering, reflection, refraction or transmission functions, which is used to conduct light from the light channel and / or the reflective layer, or scatter or redirect the light; the arrangement of the light channel, the reflective layer and the uniform light layer constrains and forms a limited light operation space, which ensures that the light emitted from the light channel and the reflected light caused by it are only propagated and / or redirected within the space, and finally escape from the uniform light layer to achieve the sunlight irradiation function.

2. A sunbathing device as claimed in claim 1, characterized in that: The optical channel is a solid or hollow waveguide channel.

3. A sunbathing device as claimed in claim 1, characterized in that: The light-homogenizing layer is a transparent or translucent material in the shape of strips, sheets or floccules.

4. A sunbathing device as claimed in claim 3, characterized in that: The optical channel is connected to the material constituting the light-homogenizing layer.

5. A sunbathing device as claimed in claim 1, characterized in that: The edge of the sandwich layer has an enclosure structure.

6. A sunbathing device as claimed in claim 1, characterized in that: The sunbathing equipment contains modular splicing interfaces and is installed on the surface of the mezzanine.

7. A sunbathing device as claimed in claim 1, characterized in that: The sunbathing equipment comprises one or more of a light sensor, a temperature sensor, a sound and light auxiliary interaction device, and a processor.

8. A sunbathing device as claimed in claim 1, characterized in that: An adjustable switch is arranged on the light channel of the sunbathing equipment.

9. A sunbathing device as claimed in claim 1, characterized in that: The material constituting the light reflecting layer is flexible.

10. A sunbathing device as claimed in claim 1, characterized in that: The material constituting the light-dodging layer is flexible.

11. A sunbathing device as claimed in claim 1, characterized in that: The light channel is in the shape of a hole.

12. A sunbathing device as claimed in claim 1, characterized in that: The optical channel is a flexible waveguide channel, or a waveguide channel distributed in a linear or disk shape in the interlayer.

13. A sunbathing device as claimed in claim 1, characterized in that: Heat conducting or heat dissipating facilities are arranged around the optical channel.

14. A sunbathing device as claimed in claim 1, characterized in that: Also included is a light-concentrating waveguide system capable of providing sunlight thereto and a waveguide channel contained therein.

15. A sunbathing device as claimed in claim 14, characterized in that: It also includes an additional optical unit, which is placed in the sandwich layer composed of the reflective layer and the uniform light layer, and is responsible for diffusing or expanding the light from the waveguide channel by blocking, reflecting, transmitting, refracting, scattering or a combination thereof, so as to reduce its intensity; The radiation energy intensity of the light that finally escapes through the light-homogenizing layer is much lower than the radiation energy intensity of the light in the waveguide channel.

16. A sunbathing device as claimed in claim 1, characterized in that: It also includes a border or frame for accommodating or fixing a reflective layer, a uniform light layer and a light channel to mark the boundary range of the sunbathing equipment.

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