TWI728662B - Flexible phototherapy devices - Google Patents

Abstract

A flexible phototherapy device is provided. The flexible phototherapy device includes a light guide plate, a light exit area located on the first surface of the light guide plate, a first reflective layer disposed on the second surface of the light guide plate, a first light source disposed on the first surface or the second surface of the light guide plate and adjacent to the first edge of the light guide plate, and a second light source disposed on the first surface or the second surface of the light guide plate and adjacent to the second edge of the light guide plate.

Description

Flexible phototherapy device

The invention relates to a light therapy device, in particular to a flexible light therapy device.

For patients with diabetes, kidney dialysis, chronic diseases, or wound healing in the elderly, in addition to the existing treatment methods, the use of visible light phototherapy has proven to accelerate peripheral blood circulation to speed up the healing and repair mechanism of tissues.

Light therapy therapy has officially entered the medical treatment course. However, infrared phototherapy equipment such as IR, NIR or LED currently used in homes has problems such as the risk of overheating the skin surface (>40°C) and the inconvenience of use.

Therefore, it is expected to develop a portable and flexible light therapy device.

According to an embodiment of the present invention, a flexible light therapy device is provided. The flexible light therapy device includes: a light guide sheet having a first surface, a second surface, a first edge and a second edge, the first surface is opposite to the second surface, and the first edge is opposite At the second edge, and the first edge and the second edge are respectively connected to the first surface and the second surface; a light exit area is located on the first surface of the light guide sheet; a first reflective layer is provided On the second surface of the light guide sheet; a first light source disposed on the first surface or the second surface of the light guide sheet, adjacent to the first edge of the light guide sheet; and a second light source, It is arranged on the first surface or the second surface of the light guide sheet, and is adjacent to the second edge of the light guide sheet.

According to an embodiment of the present invention, a flexible light therapy device is provided. The flexible light therapy device includes: a first light guide sheet having a first surface, a second surface, a first edge, and a second edge. The first surface is opposite to the second surface, and the first surface is opposite to the second surface. The edge is opposite to the second edge, and the first edge and the second edge are respectively connected to the first surface and the second surface; a second light guide sheet has a first surface, a second surface, and a first surface. An edge and a second edge, the first surface is opposite to the second surface, the first edge is opposite to the second edge, and the first edge and the second edge connect the first surface and the second edge, respectively Surface, the second surface of the second light guide sheet is adjacent to the first surface of the first light guide sheet; a first light exit area is located on the first surface of the first light guide sheet; a second The light exit area is located on the first surface of the second light guide sheet; a first reflective layer is provided on the second surface of the first light guide sheet; a first light source is provided on the first light guide sheet The second surface is adjacent to the first edge of the first light guide sheet; a second light source is disposed on the second surface of the first light guide sheet, and is adjacent to the second edge of the first light guide sheet; A third light source arranged on the first surface or the second surface of the second light guide sheet, adjacent to the first edge of the second light guide sheet; and a fourth light source arranged on the second light guide sheet The first surface or the second surface of the sheet is adjacent to the second edge of the second light guide sheet.

According to an embodiment of the present invention, a flexible light therapy device is provided. The flexible light therapy device includes: a first light guide sheet having a first surface, a second surface, a first edge, and a second edge. The first surface is opposite to the second surface, and the first surface is opposite to the second surface. The edge is opposite to the second edge, and the first edge and the second edge are respectively connected to the first surface and the second surface; a second light guide sheet has a first surface, a second surface, and a first surface. An edge and a second edge, the first surface is opposite to the second surface, the first edge is opposite to the second edge, and the first edge and the second edge connect the first surface and the second edge, respectively Surface, the second surface of the second light guide sheet is adjacent to the first surface of the first light guide sheet; a third light guide sheet has a first surface, a second surface, and a first edge And a second edge, the first surface is opposite to the second surface, the first edge is opposite to the second edge, and the first edge and the second edge are respectively connected to the first surface and the second surface, The second surface of the third light guide sheet is adjacent to the first surface of the second light guide sheet; a first light exit area is located on the first surface of the first light guide sheet; a second light exit area , Located on the first surface of the second light guide sheet; a third light exit area located on the first surface of the third light guide sheet; and a first reflective layer disposed on the first surface of the first light guide sheet Two surfaces; a first light source, disposed on the second surface of the first light guide sheet, adjacent to the first edge of the first light guide sheet; a second light source, disposed on the first light guide sheet A second surface, adjacent to the second edge of the first light guide sheet; a third light source, disposed on the second surface of the second light guide sheet, adjacent to the first edge of the second light guide sheet; A fourth light source arranged on the second surface of the second light guide sheet, adjacent to the second edge of the second light guide sheet; a fifth light source arranged on the second surface of the third light guide sheet, Adjacent to the first edge of the third light guide sheet; and a sixth light source disposed on the second surface of the third light guide sheet, adjacent to the second edge of the third light guide sheet.

The present invention utilizes the concept of a multilayer light guide sheet and the surface light guide technology to develop a flexible thin wearable light emitting device. The main light source comes from the light emitting diode (LED). Through the multi-layer stacked light guide sheet to achieve sufficient light intensity, uniform distribution, and various wavelength combinations. The adopted light guide sheet can be arbitrarily bent, wound, attached or attached to various parts of the body. It has a very large cost competitive advantage and long-term product durability with common pure polycarbonate resins. The present invention is mainly a new type attached and portable phototherapy instrument, which patients or users can use by themselves. A simple light guide design framework provides a light source of specific wavelength, large area, uniformity and sufficient energy, which can be used close to or very close to various parts of the body to achieve the effect of promoting blood circulation and accelerating tissue healing. The present invention has the following characteristics: (1) Portable home-attached, light-weight phototherapy instrument, (2) Surface-type light guide sheet design structure, providing specific wavelength, sufficient area, uniform light source and certain energy, and it is curved surface irradiation , (3) Separate light and heat to avoid heat damage, (4) Wearable use, and (5) Multi-spectral configuration (providing different light colors and intensity distribution), which can produce different phototherapy effects on different areas of the affected area.

Please refer to FIG. 1, according to an embodiment of the present invention, a flexible phototherapy device 10 is provided. FIG. 1 is a schematic cross-sectional view of the flexible light therapy device 10.

In FIG. 1, the flexible light therapy device 10 includes a light guide sheet 12, a light exit area 14, a first reflective layer 16, a first light source 18, and a second light source 20. The light guide sheet 12 has a first surface 12a, a second surface 12b, a first edge 12c, and a second edge 12d. The first surface 12a is opposite to the second surface 12b, and the first edge 12c is opposite to the second edge 12d. The edge 12c and the second edge 12d connect the first surface 12a and the second surface 12b, respectively. The light exit area 14 is located on the first surface 12 a of the light guide sheet 12. The first reflective layer 16 is disposed on the second surface 12 b of the light guide sheet 12. The first light source 18 is disposed on the second surface 12 b of the light guide sheet 12, adjacent to the first edge 12 c of the light guide sheet 12, but does not extend to cover the first edge 12 c of the light guide sheet 12. The second light source 20 is disposed on the second surface 12 b of the light guide sheet 12, adjacent to the second edge 12 d of the light guide sheet 12, but does not extend to cover the second edge 12 d of the light guide sheet 12. In some embodiments, the first light source 18 may also be disposed on the first surface 12a of the light guide sheet 12 (not shown). In some embodiments, the second light source 20 may also be disposed on the first surface 12a of the light guide sheet 12 (not shown).

In some embodiments, the light guide sheet 12 may be made of a suitable transparent material, for example, polycarbonate (PC), poly(methyl methacrylate) (PMMA), silicone, Cyclo olefin polymer (COP), cyclo olefin copolymer (COC), ethylene vinyl acetate (EVA), polyethylene terephthalate (polyethylene terephthalate) , PET), or glass. It is worth noting that the light guide sheet 12 used in the present invention can be worn on various parts of the body in any manner of bending, wrapping, attaching or attaching.

In some embodiments, the light exit area 14 of the light guide sheet 12 may include a V-shaped groove (not shown). The present invention cuts a V-shaped groove (V-cut) in the light exit area 14 of the first surface 12a of the light guide sheet 12, and uses the design of the light exit surface as the V-shaped groove to destroy the total reflection in the light guide sheet 12, so that The light is emitted from the light-emitting surface of the light guide sheet 12. In some embodiments, if the above-mentioned V-shaped groove is not made, the flexible phototherapy device 10 of the present invention may further include a material layer 22, which is formed on the light exit area 14 of the light guide plate 12, and the material layer 22 refracts The rate is lower than the refractive index of the light guide sheet 12, so that light can be emitted from the light exit area 14 of the light guide sheet 12. In some embodiments, the material layer 22 can be made of any low refractive index material with a lower refractive index than the light guide plate 12.

In some embodiments, the first light source 18 and the second light source 20 may include light emitting diodes (LED). In some embodiments, the first light source 18 and the second light source 20 may include organic light emitting diodes (OLED). In some embodiments, the first light source 18 and the second light source 20 may emit light of the same wavelength or different wavelengths. For example, the first light source 18 and the second light source 20 emit red light, green light, or blue light at the same time, or, One light source 18 emits red light, and the second light source 20 emits green light. Or, the first light source 18 emits blue light and the second light source 20 emits red light. Or, the first light source 18 emits red light and the second light source 20 emits green light. Light. In some embodiments, the first light source 18 and the second light source 20 may be arranged in a striped arrangement, and the light-emitting surface thereof faces the light guide plate 12.

In some embodiments, the flexible light therapy device 10 of the present invention may include a first microstructure 24 disposed between the light guide sheet 12 and the first light source 18. In some embodiments, the flexible light therapy device 10 of the present invention may include a second microstructure 26 disposed between the light guide sheet 12 and the second light source 20. In some embodiments, the first microstructure 24 and the second microstructure 26 may include a microlens array, for example, a microlens array composed of a plurality of microlenses with a size of approximately less than 50 microns. The present invention can effectively reduce the reflectivity of the light emitted from the first light source 18 and the second light source 20 through the arrangement of the first microstructure 24 and the second microstructure 26, increase the spread angle of the light, and increase its penetrability, thereby improving The amount of light entering the light guide sheet 12. In some embodiments, the flexible phototherapy device 10 of the present invention can also be provided with a refractive index change layer (not shown) between the light guide plate 12 and the first light source 18 and between the light guide plate 12 and the second light source 20. In between, the first microstructure 24 and the second microstructure 26 are replaced.

In some embodiments, the flexible light therapy device 10 of the present invention may include a protective layer 28 disposed on the first surface 12 a of the light guide sheet 12 to protect the light guide sheet 12. In some embodiments, the protective layer 28 may be a soft protective layer, for example, made of soft materials such as silicone, rubber, latex, or plastic. In some embodiments, the protective layer 28 can be transparent or translucent, and can be separately removed for sterilization and disinfection procedures.

In some embodiments, the flexible phototherapy device 10 of the present invention may include a second reflective layer 30 covering a portion of the first surface 12a, the first edge 12c, and a portion of the second surface 12a, the first edge 12c, and a portion of the light guide plate 12 located outside the first light source 18. Surface 12b. In some embodiments, the flexible phototherapy device 10 of the present invention may include a third reflective layer 32 that covers a portion of the first surface 12a, the second edge 12d, and a portion of the second surface 12a, the second edge 12d, and a portion of the light guide plate 12 located outside the second light source 20. Surface 12b. In the present invention, the arrangement of the second reflective layer 30 and the third reflective layer 32 can prevent the light in the light guide sheet 12 from leaking from both sides of the light guide sheet 12.

In some embodiments, the flexible phototherapy device 10 of the present invention may include a first fixing member 34 that covers the first light source 18, the second reflective layer 30 and a part of the light guide sheet 12 to fix the first light source 18 to The light guide sheet 12 is on. In some embodiments, the flexible phototherapy device 10 of the present invention may include a second fixing member 36 covering the second light source 20, the third reflective layer 32 and part of the light guide sheet 12 to fix the second light source 20 to The light guide sheet 12 is on. In some embodiments, the first fixing member 34 and the second fixing member 36 can be made of plastic or any suitable soft material.

Please refer to FIG. 2, according to an embodiment of the present invention, a flexible phototherapy device 100 is provided. FIG. 2 is a schematic cross-sectional view of the flexible light therapy device 100.

In Figure 2, the flexible light therapy device 100 includes a first light guide 120, a second light guide 130, a first light exit area 140, a second light exit area 150, a first reflective layer 160, a first light source 180, The second light source 200, the third light source 205, and the fourth light source 210. The first light guide sheet 120 has a first surface 120a, a second surface 120b, a first edge 120c, and a second edge 120d. The first surface 120a is opposite to the second surface 120b, and the first edge 120c is opposite to the second edge 120d, and The first edge 120c and the second edge 120d connect the first surface 120a and the second surface 120b, respectively. The second light guide sheet 130 has a first surface 130a, a second surface 130b, a first edge 130c, and a second edge 130d. The first surface 130a is opposite to the second surface 130b, and the first edge 130c is opposite to the second edge 130d, and The first edge 130c and the second edge 130d connect the first surface 130a and the second surface 130b, respectively. In Figure 2, the second surface 130b of the second light guide sheet 130 is adjacent to the first surface 120a of the first light guide sheet 120. The first light exit area 140 is located on the first surface 120 a of the first light guide sheet 120. The second light exit area 150 is located on the first surface 130 a of the second light guide sheet 130. In some embodiments, the areas of the first light-emitting region 140 and the second light-emitting region 150 may be the same or different. The first reflective layer 160 is disposed on the second surface 120 b of the first light guide sheet 120. The first light source 180 is disposed on the second surface 120b of the first light guide sheet 120, adjacent to the first edge 120c of the first light guide sheet 120, but does not extend to cover the first edge 120c of the first light guide sheet 120. The second light source 200 is disposed on the second surface 120b of the first light guide sheet 120, adjacent to the second edge 120d of the first light guide sheet 120, but does not extend to cover the second edge 120d of the first light guide sheet 120. The third light source 205 is disposed on the first surface 130a of the second light guide sheet 130, adjacent to the first edge 130c of the second light guide sheet 130, but does not extend to cover the first edge 130c of the second light guide sheet 130. The fourth light source 210 is disposed on the first surface 130a of the second light guide sheet 130, adjacent to the second edge 130d of the second light guide sheet 130, but does not extend to cover the second edge 130d of the second light guide sheet 130.

In some embodiments, the first light guide sheet 120 and the second light guide sheet 130 may be made of a suitable transparent material, for example, polycarbonate (PC), poly(methyl methacrylate) , PMMA), silicone (silica), cyclo olefin polymer (cyclo olefin polymer, COP), cyclo olefin copolymer (COC), ethylene vinyl acetate (EVA), polymer Polyethylene terephthalate (PET), or glass. It is worth noting that the first light guide sheet 120 and the second light guide sheet 130 used in the present invention can be worn on various parts of the body in any manner of bending, wrapping, attaching or attaching.

In some embodiments, the first light exit area 140 of the first light guide sheet 120 and the second light exit area 150 of the second light guide sheet 130 may respectively include V-shaped grooves (not shown). In some embodiments, if the above-mentioned V-shaped groove is not made, the flexible phototherapy device 100 of the present invention may further include a first material layer 220 and a second material layer 230. The first material layer 220 is formed on the first light exit area 140 of the first light guide sheet 120, and the refractive index of the first material layer 220 is lower than that of the first light guide sheet 120, so that light can be guided from the first light guide sheet 120. The first light emitting area 140 of the sheet 120 emits light. In some embodiments, the first material layer 220 may be made of any low refractive index material with a lower refractive index than the first light guide sheet 120. Similarly, the second material layer 230 is formed on the second light exit area 150 of the second light guide sheet 130, and the refractive index of the second material layer 230 is lower than the refractive index of the second light guide sheet 130, so that light can escape from the The second light exit area 150 of the second light guide sheet 130 emits light. In some embodiments, the second material layer 230 may be made of any low refractive index material with a lower refractive index than the second light guide sheet 130.

In some embodiments, the first light source 180, the second light source 200, the third light source 205, and the fourth light source 210 may include light emitting diodes (LEDs). In some embodiments, the first light source 180, the second light source 200, the third light source 205, and the fourth light source 210 may include organic light emitting diodes (OLED). In some embodiments, the first light source 180, the second light source 200, the third light source 205, and the fourth light source 210 may emit light of the same wavelength or different wavelengths, for example, the first light source 180, the second light source 200, and the third light source The light source 205 and the fourth light source 210 emit red light, green light or blue light at the same time, or, the first light source 180 and the second light source 200 emit red light, and the third light source 205 and the fourth light source 210 emit green light, or, The first light source 180 and the second light source 200 emit blue light, the third light source 205 and the fourth light source 210 emit red light, or the first light source 180 and the second light source 200 emit red light, the third light source 205 and the fourth light source 210 Emit green light. In some embodiments, the first light source 180, the second light source 200, the third light source 205, and the fourth light source 210 may be arranged in strips, and their light-emitting surfaces face the first light guide sheet 120 and the second light guide sheet 130, respectively. .

In some embodiments, the flexible light therapy device 100 of the present invention may include a first microstructure 240 disposed between the first light guide 120 and the first light source 180. In some embodiments, the flexible light therapy device 100 of the present invention may include a second microstructure 260 disposed between the first light guide 120 and the second light source 200. In some embodiments, the flexible light therapy device 100 of the present invention may include a third microstructure 265 disposed between the second light guide sheet 130 and the third light source 205. In some embodiments, the flexible light therapy device 100 of the present invention may include a fourth microstructure 270 disposed between the second light guide sheet 130 and the fourth light source 210. In some embodiments, the first microstructure 240, the second microstructure 260, the third microstructure 265, and the fourth microstructure 270 may include a microlens array (microlens array), for example, a plurality of sizes less than 50 microns Microlens array composed of microlenses. In some embodiments, the flexible phototherapy device 100 of the present invention can also be provided with a refractive index change layer (not shown) to replace the first microstructure 240, the second microstructure 260, the third microstructure 265, and the fourth microstructure. Structure 270.

In some embodiments, the flexible light therapy device 100 of the present invention may include a protective layer 280 disposed on the first surface 130 a of the second light guide sheet 130 to protect the first light guide sheet 120 and the second light guide sheet 130. In some embodiments, the protective layer 280 may be a soft protective layer, for example, made of soft materials such as silicone, rubber, latex, or plastic. In some embodiments, the protective layer 280 can be transparent or translucent, and can be separately removed for sterilization and disinfection procedures.

In some embodiments, the flexible light therapy device 100 of the present invention may include a second reflective layer 300 covering a portion of the second surface 120b and the second surface 120b of the first light guide 120 outside the first light source 180 and the third light source 205 The first edge 120c of a light guide sheet 120, the first edge 130c of the second light guide sheet 130, and a part of the first surface 130a of the second light guide sheet 130. In some embodiments, the flexible phototherapy device 100 of the present invention may include a third reflective layer 320 covering a portion of the second surface 120b and the second surface 120b of the first light guide 120 outside the second light source 200 and the fourth light source 210. The second edge 120d of a light guide sheet 120, the second edge 130d of the second light guide sheet 130, and a part of the first surface 130a of the second light guide sheet 130.

In some embodiments, the flexible phototherapy device 100 of the present invention may include a first fixing member 340 that covers the first light source 180, the second reflective layer 300, the third light source 205, part of the first light guide 120, and Part of the second light guide sheet 130 is used to fix the first light source 180 and the third light source 205 on the first light guide sheet 120 and the second light guide sheet 130 respectively. In some embodiments, the flexible phototherapy device 100 of the present invention may include a second fixing member 360 that covers the second light source 200, the third reflective layer 320, the fourth light source 210, part of the first light guide 120, and Part of the second light guide sheet 130 is used to fix the second light source 200 and the fourth light source 210 on the first light guide sheet 120 and the second light guide sheet 130 respectively. In some embodiments, the first fixing member 340 and the second fixing member 360 can be made of plastic or any suitable soft material.

Please refer to FIG. 3, according to an embodiment of the present invention, a flexible phototherapy device 100 is provided. FIG. 3 is a schematic cross-sectional view of the flexible light therapy device 100.

The embodiment in Fig. 3 is similar to the embodiment in Fig. 2, except that the third light source 205 and the fourth light source 210 are arranged at different positions. In Fig. 3, the third light source 205 is arranged on the second light guide 130 The second surface 130b of the second light guide sheet 130 is adjacent to the first edge 130c of the second light guide sheet 130, but does not extend to cover the first edge 130c of the second light guide sheet 130. The fourth light source 210 is disposed on the second edge 130c of the second light guide sheet 130. The surface 130b is adjacent to the second edge 130d of the second light guide sheet 130, but does not extend to cover the second edge 130d of the second light guide sheet 130, that is, the third light source 205 and the fourth light source 210 are located on the first light guide sheet Two sides of 120 are respectively adjacent to the first edge 120c and the second edge 120d of the first light guide sheet 120. Due to the positions of the third light source 205 and the fourth light source 210, the second reflective layer 300 further covers the third light source 205, and the third reflective layer 320 further covers the fourth light source 210.

Please refer to FIG. 4, according to an embodiment of the present invention, a flexible phototherapy device 1000 is provided. Figure 4 is a schematic cross-sectional view of the flexible light therapy device 1000.

In Figure 4, the flexible phototherapy device 1000 includes a first light guide 1200, a second light guide 1300, a third light guide 1350, a first light exit area 1400, a second light exit area 1500, and a third light exit area 1550, a first reflective layer 1600, a first light source 1800, a second light source 2000, a third light source 2050, a fourth light source 2100, a fifth light source 2150, and a sixth light source 2170. The first light guide sheet 1200 has a first surface 1200a, a second surface 1200b, a first edge 1200c, and a second edge 1200d. The first surface 1200a is opposite to the second surface 1200b, and the first edge 1200c is opposite to the second edge 1200d, and The first edge 1200c and the second edge 1200d connect the first surface 1200a and the second surface 1200b, respectively. The second light guide sheet 1300 has a first surface 1300a, a second surface 1300b, a first edge 1300c, and a second edge 1300d. The first surface 1300a is opposite to the second surface 1300b, and the first edge 1300c is opposite to the second edge 1300d, and The first edge 1300c and the second edge 1300d connect the first surface 1300a and the second surface 1300b, respectively. The third light guide sheet 1350 has a first surface 1350a, a second surface 1350b, a first edge 1350c, and a second edge 1350d. The first surface 1350a is opposite to the second surface 1350b, and the first edge 1350c is opposite to the second edge 1350d, and The first edge 1350c and the second edge 1350d connect the first surface 1350a and the second surface 1350b, respectively. In Figure 4, the second surface 1300b of the second light guide sheet 1300 is adjacent to the first surface 1200a of the first light guide sheet 1200, and the second surface 1350b of the third light guide sheet 1350 is adjacent to the second light guide sheet 1300. The first surfaces 1300a are adjacent to each other. The first light exit area 1400 is located on the first surface 1200 a of the first light guide sheet 1200. The second light exit area 1500 is located on the first surface 1300 a of the second light guide sheet 1300. The third light exit area 1550 is located on the first surface 1350 a of the third light guide sheet 1350. In some embodiments, the areas of the first light-emitting area 1400, the second light-emitting area 1500, and the third light-emitting area 1550 may be the same or different. The first reflective layer 1600 is disposed on the second surface 1200b of the first light guide sheet 1200. The first light source 1800 is disposed on the second surface 1200b of the first light guide sheet 1200, adjacent to the first edge 1200c of the first light guide sheet 1200, but does not extend to cover the first edge 1200c of the first light guide sheet 1200. The second light source 2000 is disposed on the second surface 1200b of the first light guide sheet 1200, adjacent to the second edge 1200d of the first light guide sheet 1200, but does not extend to cover the second edge 1200d of the first light guide sheet 1200. The third light source 2050 is disposed on the second surface 1300b of the second light guide sheet 1300, adjacent to the first edge 1300c of the second light guide sheet 1300, but does not extend to cover the first edge 1300c of the second light guide sheet 1300. The fourth light source 2100 is disposed on the second surface 1300b of the second light guide sheet 1300, adjacent to the second edge 1300d of the second light guide sheet 1300, but does not extend to cover the second edge 1300d of the second light guide sheet 1300. The fifth light source 2150 is disposed on the second surface 1350b of the third light guide sheet 1350, adjacent to the first edge 1350c of the third light guide sheet 1350, but does not extend to cover the first edge 1350c of the third light guide sheet 1350. The sixth light source 2170 is disposed on the second surface 1350b of the third light guide sheet 1350, adjacent to the second edge 1350d of the third light guide sheet 1350, but does not extend to cover the second edge 1350d of the third light guide sheet 1350.

In some embodiments, the first light guide sheet 1200, the second light guide sheet 1300, and the third light guide sheet 1350 may be composed of a suitable transparent material, for example, polycarbonate (PC), polymethacrylic acid Methyl (poly(methyl methacrylate), PMMA), silicone (silica), cyclo olefin polymer (cyclo olefin polymer, COP), cyclo olefin copolymer (COC), ethylene-vinyl acetate copolymer (ethylene Vinyl acetate, EVA), polyethylene terephthalate (PET), or glass. It is worth noting that the first light guide sheet 1200, the second light guide sheet 1300, and the third light guide sheet 1350 used in the present invention can be arbitrarily bent, wound, attached or attached to various parts of the body.

In some embodiments, the first light exit area 1400 of the first light guide sheet 1200, the second light exit area 1500 of the second light guide sheet 1300, and the third light exit area 1550 of the third light guide sheet 1350 may each include a V-shaped Groove (not shown). In some embodiments, if the above-mentioned V-shaped groove is not made, the flexible phototherapy device 1000 of the present invention may further include a first material layer 2200, a second material layer 2300, and a third material layer 2350. The first material layer 2200 is formed on the first light exit area 1400 of the first light guide sheet 1200, and the refractive index of the first material layer 2200 is lower than the refractive index of the first light guide sheet 1200, so that light can be guided from the first light guide sheet 1200. The first light emitting area 1400 of the sheet 1200 emits. In some embodiments, the first material layer 2200 may be made of any low refractive index material with a lower refractive index than the first light guide sheet 1200. Similarly, the second material layer 2300 is formed on the second light exit area 1500 of the second light guide sheet 1300, and the refractive index of the second material layer 2300 is lower than the refractive index of the second light guide sheet 1300, so that light can pass from the first light guide sheet 1300. The second light exit area 1500 of the second light guide sheet 1300 emits light. In some embodiments, the second material layer 2300 can be made of any low refractive index material with a lower refractive index than the second light guide 1300. Similarly, the third material layer 2350 is formed on the third light exit area 1550 of the third light guide sheet 1350, and the refractive index of the third material layer 2350 is lower than the refractive index of the third light guide sheet 1350, so that light can pass from the first light guide sheet 1350. The third light exit area 1550 of the three light guide sheet 1350 emits light. In some embodiments, the third material layer 2350 can be made of any low refractive index material with a lower refractive index than the third light guide 1350.

In some embodiments, the first light source 1800, the second light source 2000, the third light source 2050, the fourth light source 2100, the fifth light source 2150, and the sixth light source 2170 may include light emitting diodes (LEDs). In some embodiments, the first light source 1800, the second light source 2000, the third light source 2050, the fourth light source 2100, the fifth light source 2150, and the sixth light source 2170 may include organic light emitting diodes (OLED). In some embodiments, the first light source 1800, the second light source 2000, the third light source 2050, the fourth light source 2100, the fifth light source 2150, and the sixth light source 2170 can emit light of the same wavelength or different wavelengths, for example, the first light source The light source 1800, the second light source 2000, the third light source 2050, the fourth light source 2100, the fifth light source 2150, and the sixth light source 2170 simultaneously emit red, green or blue light, or, the first light source 1800 and the second light source 2000 Red light is emitted, the third light source 2050 and the fourth light source 2100 emit green light, the fifth light source 2150 and the sixth light source 2170 emit blue light, or the first light source 1800 and the second light source 2000 emit blue light, and the third light source 2050 and the second light source 2000 emit blue light. The four light sources 2100 emit red light, the fifth light source 2150 and the sixth light source 2170 emit green light, or the first light source 1800 and the second light source 2000 emit red light, and the third light source 2050 and the fourth light source 2100 emit green light. The five light source 2150 and the sixth light source 2170 emit blue light. In some embodiments, the first light source 1800, the second light source 2000, the third light source 2050, the fourth light source 2100, the fifth light source 2150, and the sixth light source 2170 may be arranged in strips, and their light-emitting surfaces respectively face the first guide. The light sheet 1200, the second light guide sheet 1300, and the third light guide sheet 1350.

In some embodiments, the flexible light therapy device 1000 of the present invention may include a first microstructure 2400 disposed between the first light guide sheet 1200 and the first light source 1800. In some embodiments, the flexible phototherapy device 1000 of the present invention may include a second microstructure 2600 disposed between the first light guide sheet 1200 and the second light source 2000. In some embodiments, the flexible phototherapy device 1000 of the present invention may include a third microstructure 2650 disposed between the second light guide sheet 1300 and the third light source 2050. In some embodiments, the flexible phototherapy device 1000 of the present invention may include a fourth microstructure 2700 disposed between the second light guide sheet 1300 and the fourth light source 2100. In some embodiments, the flexible phototherapy device 1000 of the present invention may include a fifth microstructure 2750 disposed between the third light guide sheet 1350 and the fifth light source 2150. In some embodiments, the flexible light therapy device 1000 of the present invention may include a sixth microstructure 2770 disposed between the third light guide sheet 1350 and the sixth light source 2170. In some embodiments, the first microstructure 2400, the second microstructure 2600, the third microstructure 2650, the fourth microstructure 2700, the fifth microstructure 2750, and the sixth microstructure 2770 may include a microlens array (microlens array) For example, a microlens array composed of a plurality of microlenses with a size of approximately less than 50 microns. In some embodiments, the flexible phototherapy device 1000 of the present invention can also be provided with a refractive index change layer (not shown) to replace the first microstructure 2400, the second microstructure 2600, the third microstructure 2650, and the fourth microstructure. 2700, the fifth microstructure 2750, and the sixth microstructure 2770.

In some embodiments, the flexible light therapy device 1000 of the present invention may include a protective layer 2800 disposed on the first surface 1350a of the third light guide sheet 1350 to protect the first light guide sheet 1200, the second light guide sheet 1300, And the third light guide sheet 1350. In some embodiments, the protective layer 2800 may be a soft protective layer, for example, made of soft materials such as silicone, rubber, latex, or plastic. In some embodiments, the protective layer 2800 can be transparent or translucent, and can be separately removed for sterilization and disinfection procedures.

In some embodiments, the flexible phototherapy device 1000 of the present invention may include a second reflective layer 3000 covering a portion of the second surface 1200b of the first light guide sheet 1200 outside the first light source 1800, and the first light guide sheet 1200 The first edge 1200c of the second light guide sheet 1300, the first edge 1350c of the third light guide sheet 1350, a portion of the first surface 1350a of the third light guide sheet 1350, the third light source 2050, and the first edge 1200c of the second light guide sheet 1300, and the first edge 1350c of the third light guide sheet 1350. Five light sources 2150. In some embodiments, the flexible phototherapy device 1000 of the present invention may include a third reflective layer 3200, covering a portion of the second surface 1200b of the first light guide sheet 1200 outside the second light source 2000, and the first light guide sheet 1200 The second edge 1200d of the second light guide sheet 1300, the second edge 1300d of the second light guide sheet 1300, the second edge 1350d of the third light guide sheet 1350, a portion of the first surface 1350a of the third light guide sheet 1350, the fourth light source 2100, and the first Six light sources 2170.

In some embodiments, the flexible phototherapy device 1000 of the present invention may include a first fixing member 3400 that covers the first light source 1800, the second reflective layer 3000, the third light source 2050, the fifth light source 2150, and part of the first guide The light sheet 1200, part of the second light guide sheet 1300, and part of the third light guide sheet 1350 are used to fix the first light source 1800, the third light source 2050, and the fifth light source 2150 to the first light guide sheet 1200, On the second light guide sheet 1300 and the third light guide sheet 1350. In some embodiments, the flexible phototherapy device 1000 of the present invention may include a second fixing member 3600 covering the second light source 2000, the third reflective layer 3200, the fourth light source 2100, the sixth light source 2170, and part of the first guide The light sheet 1200, part of the second light guide sheet 1300, and part of the third light guide sheet 1350 are used to fix the second light source 2000, the fourth light source 2100, and the sixth light source 2170 to the first light guide sheet 1200 and the second light source, respectively. On the second light guide sheet 1300 and the third light guide sheet 1350. In some embodiments, the first fixing member 3400 and the second fixing member 3600 can be made of plastic or any suitable soft material.

The present invention utilizes the concept of a multilayer light guide sheet and the surface light guide technology to develop a flexible thin wearable light emitting device. The main light source comes from the light emitting diode (LED). Through the multi-layer stacked light guide sheet to achieve sufficient light intensity, uniform distribution, and various wavelength combinations. The adopted light guide sheet can be arbitrarily bent, wound, attached or attached to various parts of the body. It has a very large cost competitive advantage and long-term product durability with common pure polycarbonate resins. The present invention is mainly a new type attached and portable phototherapy instrument, which patients or users can use by themselves. A simple light guide design framework provides a light source of specific wavelength, large area, uniformity and sufficient energy, which can be used close to or very close to various parts of the body to achieve the effect of promoting blood circulation and accelerating tissue healing. The present invention has the following characteristics: (1) Portable home-attached, light-weight phototherapy instrument, (2) Surface-type light guide sheet design structure, providing specific wavelength, sufficient area, uniform light source and certain energy, and it is curved surface irradiation , (3) Separate light and heat to avoid heat damage, (4) Wearable use, and (5) Multi-spectral configuration (providing different light colors and intensity distribution), which can produce different phototherapy effects on different areas of the affected area.

Example 1

Multi-spectral configuration of flexible phototherapy device (1)

This embodiment illustrates the multi-spectral configuration of the flexible phototherapy device of the present invention. Here, the flexible light therapy device 100 with dual light guides as shown in FIG. 2 is taken as an example for description. Referring to FIG. 5A, the first light guide sheet 120 has a first light exit area 140, the second light guide sheet 130 has a second light exit area 150, the first light exit area 140 emits red light, and the second light exit area 150 emits green light. The area A2 of the second light-emitting area 150 is larger than the area A1 of the first light-emitting area 140, and the second light-emitting area 150 and the first light-emitting area 140 overlap with each other. After the light passes through the superposition of the first light guide sheet 120 and the second light guide sheet 130, a specific light color distribution pattern 50 is obtained. In the light color distribution pattern 50, the light on both sides is green light G with the highest intensity, and the light in the middle area is yellow light Y produced by mixing red light and green light, with weaker intensity.

Example 2

Multi-spectral configuration of flexible phototherapy device (2)

This embodiment illustrates the multi-spectral configuration of the flexible phototherapy device of the present invention. Here, the flexible light therapy device 100 with dual light guides as shown in FIG. 2 is taken as an example for description. Referring to FIG. 5B, the first light guide film 120 has a first light output area 140, the second light guide film 130 has a second light output area 150, the first light output area 140 emits blue light, and the second light output area 150 emits red light. The area A2 of the second light-emitting area 150 is slightly larger than the area A1 of the first light-emitting area 140, and the second light-emitting area 150 and the first light-emitting area 140 overlap. After the light passes through the superposition of the first light guide sheet 120 and the second light guide sheet 130, a specific light color distribution pattern 50 is obtained. In the light color distribution pattern 50, the light on both sides is red light R with weak intensity, and the light in the middle area is magenta light M generated by mixing blue and red light, and the intensity gradually increases toward the center.

Example 3

Multi-spectral configuration of flexible phototherapy device (3)

This embodiment illustrates the multi-spectral configuration of the flexible phototherapy device of the present invention. Here, the flexible light therapy device 100 with dual light guides as shown in FIG. 2 is taken as an example for description. Referring to FIG. 5C, the first light guide sheet 120 has a first light exit area 140, the second light guide sheet 130 has a second light exit area 150, the first light exit area 140 emits red light, and the second light exit area 150 emits green light. The area A2 of the second light-emitting area 150 is similar to the area A1 of the first light-emitting area 140. The second light-emitting area 150 is located on the left side of the second light guide film 130 and only partially overlaps the first light-emitting area 140. After the light passes through the superposition of the first light guide sheet 120 and the second light guide sheet 130, a specific light color distribution pattern 50 is obtained. In the light color distribution pattern 50, the light on the left is green light G, the intensity is the highest, the light in the middle area is the yellow light Y produced by mixing red and green light, the intensity is second, and the light on the right is red light R , The strength is the weakest.

The features of the above-mentioned embodiments are helpful for those skilled in the art to understand the present invention. Those skilled in the art should understand that the present invention can be used as a basis to design and change other processes and structures to achieve the same purpose and/or the same advantages of the above-mentioned embodiments. Those with ordinary knowledge in the art should also understand that these equivalent substitutions do not depart from the spirit and scope of the present invention, and can be changed, substituted, or modified without departing from the spirit and scope of the present invention.

10, 100, 1000: Flexible phototherapy device

12: Light guide sheet

12a: The first surface of the light guide

12b: The second surface of the light guide

12c: The first edge of the light guide

12d: The second edge of the light guide

14: Light emitting area

16, 160, 1600: the first reflective layer

18, 180, 1800: the first light source

20, 200, 2000: second light source

22: Material layer

24, 240, 2400: the first microstructure

26, 260, 2600: second microstructure

28, 280, 2800: protective layer

30, 300, 3000: second reflective layer

32, 320, 3200: third reflective layer

34, 340, 3400: the first fixing member

36, 360, 3600: second fixing member

50: Light color distribution 120, 1200: the first light guide 120a, 1200a: the first surface of the first light guide 120b, 1200b: the second surface of the first light guide 120c, 1200c: the first edge of the first light guide 120d, 1200d: the second edge of the first light guide 130, 1300: second light guide sheet 130a, 1300a: the first surface of the second light guide 130b, 1300b: the second surface of the second light guide 130c, 1300c: the first edge of the second light guide 130d, 1300d: the second edge of the second light guide 140, 1400: the first light-emitting area 150, 1500: second light emitting zone 205, 2050: third light source 210, 2100: the fourth light source 220, 2200: the first material layer 230, 2300: second material layer 265, 2650: the third microstructure 270, 2700: the fourth microstructure 1350: The third light guide 1350a: The first surface of the third light guide 1350b: The second surface of the third light guide 1350c: The first edge of the third light guide 1350d: The second edge of the third light guide 1550: The third light-emitting area 2150: Fifth light source 2170: The sixth light source 2350: third material layer 2750: Fifth Microstructure 2770: Sixth Microstructure A1: The area of the first light emitting zone A2: The area of the second light emitting zone G: Green light M: Magenta light R: Red light Y: yellow light

Figure 1 is a schematic cross-sectional view of a flexible phototherapy device according to an embodiment of the present invention; Figure 2 is a schematic cross-sectional view of a flexible phototherapy device according to an embodiment of the present invention; Figure 3 is a schematic cross-sectional view of a flexible phototherapy device according to an embodiment of the present invention; Figure 4 is a schematic cross-sectional view of a flexible phototherapy device according to an embodiment of the present invention; Figure 5A is a multi-spectral configuration of a flexible phototherapy device according to an embodiment of the present invention; Figure 5B is a multi-spectral configuration of a flexible phototherapy device according to an embodiment of the present invention; and Figure 5C is a multi-spectral configuration of a flexible phototherapy device according to an embodiment of the present invention.

100: Flexible phototherapy device

120: The first light guide

120a: The first surface of the first light guide

120b: The second surface of the first light guide

120c: The first edge of the first light guide

120d: The second edge of the first light guide

130: second light guide

130a: The first surface of the second light guide

130b: The second surface of the second light guide

130c: The first edge of the second light guide

130d: The second edge of the second light guide

140: The first light zone

150: second light emitting zone

160: first reflective layer

180: the first light source

200: second light source

205: third light source

210: fourth light source

220: The first material layer

230: second material layer

240: The first microstructure

260: The second microstructure

265: The third microstructure

270: Fourth Microstructure

280: protective layer

300: second reflective layer

320: third reflective layer

340: The first fixing member

360: second fixed member

Claims (23)

A flexible light therapy device includes: a light guide sheet having a first surface, a second surface, a first edge, and a second edge. The first surface is opposite to the second surface, and the first surface is opposite to the second surface. The edge is opposite to the second edge, and the first edge and the second edge are respectively connected to the first surface and the second surface; a light exit area located on the first surface of the light guide sheet; a first reflective layer , Arranged on the second surface of the light guide sheet; a first light source, arranged on the first surface or the second surface of the light guide sheet, adjacent to the first edge of the light guide sheet; a second light source , Arranged on the first surface or the second surface of the light guide sheet, adjacent to the second edge of the light guide sheet; a first microstructure arranged between the light guide sheet and the first light source; and A second microstructure is disposed between the light guide sheet and the second light source, wherein the first microstructure and the second microstructure include a microlens array. According to the first item of the scope of patent application, the flexible phototherapy device, wherein the light guide sheet includes polycarbonate (PC), poly(methyl methacrylate) (PMMA), silicone (silica) ), cyclo olefin polymer (COP), cyclo olefin copolymer (COC), ethylene vinyl acetate (EVA), polyethylene terephthalate ( polyethylene terephthalate, PET), or glass. According to the flexible light therapy device described in item 1 of the scope of patent application, the light exit area includes a V-shaped groove. The flexible phototherapy device according to the first item of the scope of patent application, wherein the first light source and the second light source comprise light-emitting diodes, which emit light of the same wavelength or different wavelengths. The flexible light therapy device described in item 1 of the scope of patent application further includes a protective layer disposed on the first surface of the light guide sheet. The flexible phototherapy device described in the first item of the scope of patent application further includes a second reflective layer and a third reflective layer, wherein the second reflective layer covers a part of the first surface of the light guide, the The first edge and part of the second surface, and the third reflective layer covers part of the first surface, the second edge, and part of the second surface of the light guide sheet. As described in item 6 of the scope of patent application, the flexible phototherapy device further includes a first fixing member and a second fixing member, wherein the first fixing member covers the first light source, the second reflective layer, And part of the light guide sheet to fix the first light source on the light guide sheet, and the second fixing member covers the second light source, the third reflective layer, and part of the light guide sheet to The second light source is fixed on the light guide sheet. A flexible phototherapy device includes: a first light guide sheet having a first surface, a second surface, a first edge, and a second edge. The first surface is opposite to the second surface, and the The first edge is opposite to the second edge, and the first edge and the second edge are respectively connected to the first surface And the second surface; a second light guide sheet having a first surface, a second surface, a first edge, and a second edge, the first surface opposite to the second surface, the first edge Relative to the second edge, and the first edge and the second edge are respectively connected to the first surface and the second surface, the second surface of the second light guide sheet and the first light guide sheet One surface is adjacent; a first light exit area is located on the first surface of the first light guide sheet; a second light exit area is located on the first surface of the second light guide sheet; a first reflective layer is provided On the second surface of the first light guide sheet; a first light source disposed on the second surface of the first light guide sheet, adjacent to the first edge of the first light guide sheet; a second light source, Arranged on the second surface of the first light guide sheet, adjacent to the second edge of the first light guide sheet; a third light source arranged on the first surface or the second surface of the second light guide sheet , Adjacent to the first edge of the second light guide sheet; and a fourth light source, disposed on the first surface or the second surface of the second light guide sheet, adjacent to the second light guide sheet edge. As described in item 8 of the scope of patent application, the flexible light therapy device, wherein the first light guide sheet and the second light guide sheet include polycarbonate (PC), poly(methyl methacrylate) methacrylate), PMMA), silica, cyclo olefin polymer (COP), cyclo olefin copolymer (COC), ethylene-vinyl acetate Copolymer (ethylene vinyl acetate, EVA), polyethylene terephthalate (PET), or glass. The flexible light therapy device as described in item 8 of the scope of patent application, wherein the first light exit area and the second light exit area respectively include a V-shaped groove. The flexible phototherapy device according to item 8 of the scope of patent application, wherein the first light source, the second light source, the third light source, and the fourth light source include light-emitting diodes that emit the same wavelength or different wavelengths Light. As described in item 8 of the scope of patent application, the flexible phototherapy device further includes a first microstructure, a second microstructure, a third microstructure, and a fourth microstructure, wherein the first microstructure is arranged Between the first light guide sheet and the first light source, the second microstructure is disposed between the first light guide sheet and the second light source, and the third microstructure is disposed between the second light guide sheet and the second light source. Between the third light source, the fourth microstructure is disposed between the second light guide sheet and the fourth light source, and the first microstructure, the second microstructure, the third microstructure, and the second light guide The four microstructures include a microlens array. As described in item 8 of the scope of patent application, the flexible light therapy device further includes a protective layer disposed on the first surface of the second light guide sheet. The flexible phototherapy device described in item 8 of the scope of patent application further includes a second reflective layer and a third reflective layer, wherein the second reflective layer covers a portion of the second surface of the first light guide sheet , The first edge of the first light guide sheet, the first edge of the second light guide sheet, and part of the first surface of the second light guide sheet, the third reflective layer covers the first guide sheet Part of the second surface of the light sheet, the second edge of the first light guide sheet, the second edge of the second light guide sheet, and part of the first light guide sheet One surface. The flexible phototherapy device described in item 14 of the scope of patent application further includes a first fixing member and a second fixing member, wherein the first fixing member covers the first light source, the second reflective layer, and the A third light source, part of the first light guide sheet, and part of the second light guide sheet to fix the first light source and the third light source on the first light guide sheet and the second light guide sheet, respectively , The second fixing member covers the second light source, the third reflective layer, the fourth light source, part of the first light guide sheet, and part of the second light guide sheet, so as to respectively cover the second light source And the fourth light source are fixed on the first light guide sheet and the second light guide sheet. A flexible phototherapy device includes: a first light guide sheet having a first surface, a second surface, a first edge, and a second edge. The first surface is opposite to the second surface, and the The first edge is opposite to the second edge, and the first edge and the second edge are respectively connected to the first surface and the second surface; a second light guide sheet has a first surface, a second surface, A first edge and a second edge, the first surface is opposite to the second surface, the first edge is opposite to the second edge, and the first edge and the second edge are connected to the first surface and the second edge, respectively The second surface, the second surface of the second light guide sheet is adjacent to the first surface of the first light guide sheet; a third light guide sheet has a first surface, a second surface, and a A first edge and a second edge, the first surface is opposite to the second surface, the first edge is opposite to the second edge, and the first edge and the second edge are respectively connected to the first surface With the second surface, the second surface of the third light guide sheet is adjacent to the first surface of the second light guide sheet; a first light exit area is located on the first surface of the first light guide sheet A second light-emitting area located on the first surface of the second light guide sheet; a third light-emitting area located on the first surface of the third light guide sheet; a first reflective layer provided on the first The second surface of the light guide sheet; a first light source arranged on the second surface of the first light guide sheet adjacent to the first edge of the first light guide sheet; a second light source arranged on the first light guide sheet The second surface of a light guide sheet is adjacent to the second edge of the first light guide sheet; a third light source is disposed on the second surface of the second light guide sheet, adjacent to the second edge of the second light guide sheet The first edge; a fourth light source, arranged on the second surface of the second light guide sheet, adjacent to the second edge of the second light guide sheet; a fifth light source, arranged on the third light guide sheet The second surface of the third light guide is adjacent to the first edge; and a sixth light source is disposed on the second surface of the third light guide, and is adjacent to the second surface of the third light guide. edge. According to the 16th item of the scope of patent application, the flexible light therapy device, wherein the first light guide sheet, the second light guide sheet and the third light guide sheet comprise polycarbonate (PC), polymethyl Methyl acrylate (poly(methyl methacrylate), PMMA), silicone (silica), cycloolefin polymer (cycloolefin polymer) olefin polymer (COP), cyclo olefin copolymer (COC), ethylene vinyl acetate (EVA), polyethylene terephthalate (PET), or glass . The flexible light therapy device according to the 16th patent application, wherein the first light exiting area, the second light exiting area, and the third light exiting area each include a V-shaped groove. The flexible phototherapy device according to claim 16, wherein the first light source, the second light source, the third light source, the fourth light source, the fifth light source, and the sixth light source include two light sources Polar bodies emit light of the same wavelength or different wavelengths. The flexible light therapy device described in item 16 of the scope of the patent application further includes a first microstructure, a second microstructure, a third microstructure, a fourth microstructure, a fifth microstructure, and a The sixth microstructure, wherein the first microstructure is disposed between the first light guide sheet and the first light source, the second microstructure is disposed between the first light guide sheet and the second light source, and the first microstructure is disposed between the first light guide sheet and the second light source. Three microstructures are disposed between the second light guide sheet and the third light source, the fourth microstructure is disposed between the second light guide sheet and the fourth light source, and the fifth microstructure is disposed on the third light source. Between the light guide sheet and the fifth light source, the sixth microstructure is disposed between the third light guide sheet and the sixth light source, and the first microstructure, the second microstructure, and the third microstructure , The fourth microstructure, the fifth microstructure, and the sixth microstructure include a microlens array. Such as the flexible light therapy device described in item 16 of the scope of patent application, more It includes a protective layer disposed on the first surface of the third light guide sheet. The flexible phototherapy device described in item 16 of the scope of patent application further includes a second reflective layer and a third reflective layer, wherein the second reflective layer covers a part of the first light guide sheet and the second Surface, the first edge of the first light guide sheet, the first edge of the second light guide sheet, the first edge of the third light guide sheet, and the first edge of the third light guide sheet Surface, the third reflective layer covers part of the second surface of the first light guide, the second edge of the first light guide, the second edge of the second light guide, the third The second edge of the light guide sheet and part of the first surface of the third light guide sheet. The flexible phototherapy device described in item 22 of the scope of patent application further includes a first fixing member and a second fixing member, wherein the first fixing member covers the first light source, the second reflective layer, and the The third light source, the fifth light source, part of the first light guide sheet, part of the second light guide sheet, and part of the third light guide sheet, so that the first light source, the third light source and the The fifth light source is fixed on the first light guide sheet, the second light guide sheet, and the third light guide sheet, and the second fixing member covers the second light source, the third reflective layer, the fourth light source, The sixth light source, part of the first light guide sheet, part of the second light guide sheet, and part of the third light guide sheet, so that the second light source, the fourth light source and the sixth light source are respectively Fixed on the first light guide sheet, the second light guide sheet and the third light guide sheet.

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