CN103670222A - Device with thermally insulating light-guiding film - Google Patents

Abstract

A device with a heat-insulating light-conducting film, the device is one or more carriers with a carrying device for adjusting the amount of incident light, wherein the carrying device can adjust the angle, like the blades on a Venetian blind, and each blade can be provided with a heat-insulating light-conducting film. The heat-insulating light-conducting film in this example is mainly composed of a multi-layer film body and a surface structure layer, and the multi-layer film body is composed of multiple layers of adjacent polymer material films with different refractive indices, and the light band to be reflected can be controlled by adjusting the material composition and thickness, and the surface structure layer is combined with one side of the multi-layer film body to guide the path of light incident on the heat-insulating light-conducting film. By combining the heat-insulating light-conducting film with the Venetian blind, the angle of light incident on the heat-insulating light-conducting film can be adjusted as needed, while providing heat insulation, anti-glare and lighting functions.

Description

Device with thermally insulating light-guiding film

technical field

The invention relates to a device with a heat-insulating light-guiding film, in particular to a window device with a heat-insulating light-guiding film that can adjust the amount of light entering the room from a light source. the

Background technique

Generally, the common multilayer film is composed of multilayer films with different refractive indices. Through the combination of multilayer films, few effects can be produced, such as heat insulation, light filtering, polarization, anti-glare and other effects. It is composed of multi-layer films of different materials, and the main component is high molecular polymer. the

Taking the heat insulation effect as an example, the heat insulation film achieves the heat insulation effect by means of reflecting or absorbing solar heat, mainly through the special material in the multilayer film to produce reflection or absorb infrared rays, such as on the surface of the multilayer film Metal reflective coatings are formed. Metal components such as silver, titanium, iron, aluminum, etc. can directly reflect energy outside. Although this type of reflective insulation can block solar heat, it also causes indoor reflection. If the means of absorbing solar heat is used, the heat may be accumulated in the heat insulation film, and the heat may be released again, resulting in the problem of poor heat insulation effect. the

For the relevant previous cases of heat insulation film, please refer to a kind of nanostructure optical heat insulation film disclosed in Chinese Taiwan Patent No. I346215 announced on August 1, 2011. The proposed optical heat insulation film is prepared A nanostructure layer and a metal layer are formed on the base material, and the metal layer is used to block infrared rays when light is irradiated to achieve heat insulation effect. The material of the metal layer mentioned in this case is gold, silver, aluminum, nickel, copper, chromium, oxide One of tin and indium tin oxide (ITO). Such heat insulation means using metal materials to block infrared rays may cause the problem of accumulating heat energy. the

As far as the effect of light guide is concerned, the general way of guiding light with multilayer film structure is to change the path of light through multiple layers of films with different refractive indices, but there is no way to effectively pass outdoor light through the light guide to form lighting. solution. the

Contents of the invention

The invention provides a multi-layer film structure with both heat insulation and light guiding effects, especially combined with a window device that can adjust the amount of light entering the room from a light source, such as blinds. The embodiment provides that a A heat-insulating light-guiding film, which uses the design of the multi-layer film structure and cooperates with the surface structure to produce optical characteristics to achieve a heat-insulating and light-guiding structure. This function is also combined with a device that can adjust the incident angle of the light source to control the incident The angle of this kind of thermal insulation light guide film. the

According to the embodiment described in this specification, the multi-layer film structure can effectively reflect the infrared band, and use the interference principle to reflect infrared rays, which can have the effect of heat insulation, and is different from the principle of adding metal oxides to absorb infrared rays on the market, and the heat will not Stacked in the multi-layer film structure, it will no longer release heat. the

According to an embodiment of the invention, the main structure of the heat-insulating light-guiding film is a multi-layer film body composed of multi-layer polymer material films, wherein adjacent films have different refractive indices, and by adjusting the material of the multi-layer film body The composition and thickness control the wavelength band of light to be reflected; the heat-insulating light-guiding film also includes a surface structure layer combined with the multi-layer film body, and the surface structure layer is used to guide the path of light incident on the heat-insulating light-guiding film. The above-mentioned multi-layer film body and the surface structure layer can be combined using a colloid. The thermally insulating light directing film also provides a substrate between the above two elements. the

The heat-insulating and light-guiding film can also be formed on another carrier. This carrier is composed of one or the first carrying device with the function of adjusting the incident light. The formed device is like a shutter, and the carrying device can be a blade. The combination of the heat-insulating light-guiding film and the carrier can be attached to the carrier on the side of the surface structure layer, and the gap between the surface structure layer and the carrier is filled with a low refractive index glue, such as a gas with specific optical properties, which can be used Produces the effect of heat insulation or isolation of specific light bands. the

Among them, the heat-insulating light-guiding film is characterized by adjusting the material composition and thickness of the above-mentioned multi-layer film body to block an infrared ray, and may be formed to have polarized light with different refractive indices in various directions through a stretching process. The cross-section of the above-mentioned surface structure layer preferably presents a geometric shape extending on the entire surface of the substrate, and is a columnar structure extending on the surface. And the columnar structure can be a single or a mixture of multiple types of columnar structures. the

In another embodiment, the above-mentioned multilayer film body may be composed of one or more multilayer film modules with individual functions, and each multilayer film module is composed of multiple adjacent thin films with different refractive indices. the

Description of drawings

Fig. 1 shows a schematic diagram of an embodiment of the heat-insulating light-guiding film of the present invention;

Fig. 2 shows two schematic diagrams of the embodiment of heat-insulating light-conducting film of the present invention;

Fig. 3 shows three schematic diagrams of an embodiment of the heat-insulating light-conducting film of the present invention;

Figures 4A to 4E show a schematic diagram of the design of an embodiment of the heat-insulating light-guiding film of the present invention;

Figure 5 schematically shows one of the surface structure embodiments of the heat-insulating light-guiding film of the present invention;

Figure 6 schematically shows the second embodiment of the surface structure of the heat-insulating light-guiding film of the present invention;

Figure 7A and Figure 7B show the embodiment of the device in which the thermal insulation light guide film of the present invention is applied to the window;

Figure 8 shows a schematic diagram of an embodiment of a device with a heat-insulating light-conducting film of the present invention;

Figures 9A and 9B show schematic diagrams of an embodiment of the heat-insulating light-guiding film of the present invention disposed on a carrier device;

10A and 10B show schematic diagrams of an embodiment of a device with a heat-insulating light-guiding film according to the present invention. the

【Description of main component symbols】

Surface structure layer 101 Multilayer film body 103

Light source 10,20,30 Ray 11,12,13

Surface structure layer 201 Multilayer film body 205

Rays 21,22,23 Substrate 203

Rays 31, 32, 33 Multi-layer film body 32

Surface structure layer 301 The first multi-layer film module 303

The second multilayer film module 305 The third multilayer film module 307

Light source 40

Angle θ1, θ2, θ3, θ4 Surface structure 401, 401’

Substrate 403 Multilayer film body 405

Surface structure 402 Substrate 404

Multilayer Film Body 406 Surface Structure 53,63

Substrate 51,61 Carrier 70

Surface structure layer 701 Substrate 703

Multi-layer film body 705 colloid 707

window 8 window 82

Heat insulation light guide film 801 Carrying device 92

Surface structure layer 901 Substrate 903

Multi-layer film body 905 blades 12

Interlocking rope 101 Heat insulation light guide film 14

Detailed ways

This specification describes a heat-insulating light-guiding film and a device using this structure, wherein the main body of the heat-insulating light-guiding film includes a multi-layer film structure, which is mainly formed by stacking multiple layers of high molecular polymers. The combination of high-efficiency thin films makes this multi-layer film structure a functional film with different functions, especially the heat insulation function that can effectively reflect infrared rays. The combined device is a carrier formed by combining one or more bearing devices with the function of adjusting the angle, such as a device installed on the window. The angle of the carrying device is adjusted while adjusting the angle of light incident on the thermal insulation light guide film. the

The main implementation manner of the heat-insulating light-guiding film disclosed therein can refer to the structural schematic diagram shown in FIG. 1 . the

The figure shows a multi-layer film structure formed by combining multiple multi-layer films, for example, stacked by 20 to 200 layers of basic films, adjacent films have different refractive indices, and the whole can be a film of at least two refractive indices (at least two materials), the thickness of the multilayer film structure is in the wavelength range of visible light. It includes a surface structure layer 101 and a multilayer film body 103. The structure of the film body 103 has a certain structural rigidity due to the combination of multilayer polymer films, and the surface on one side forms a surface with a certain surface microstructure pattern. Structural layer 101. the

The multilayer film body 103 is formed by overlapping materials with different refractive indices. Through the design of the multilayer film, it can produce heat insulation, color change (controlling the penetration and reflection of colored light), polarized light, anti-glare, or guide light Functions that produce lighting effects, etc. the

The heat insulation effect is mainly because the heat insulation light guide film proposed in this manual does not need to add specific components to absorb light of a specific wavelength band, but can block infrared rays or resist ultraviolet rays by means of reflection and interference. Visible light penetrates. In addition, the colored multilayer film body 103 can also be produced by using multilayer films or dyes. The way to adjust the reflection and interference effect is to adjust the material composition and thickness of the multilayer film body 103 in the heat-insulating light guide film. Experiments have shown that the reflected light waveband can be controlled by adjusting the thickness of the multilayer film body 103. It can also cooperate with the adjustment of materials to produce the effect of reflecting light of specific wavelengths. This heat insulating light guide film is not absorbing, so heat will not accumulate, no need to add any absorbing particles, and the efficiency of polarizing light is high, and the function of preventing glare is strong. the

The film body 103 can be formed by extruding multiple layers of materials at one time through a co-extrusion process; or a multi-layer film can be formed by laminating. The surface of the surface structure layer 101 is a microstructure with a specific pattern, which can be produced by embossing the pattern on the surface of the multi-layer film body 103 by using a roller or template embossing process. It includes embossing on the surface after the multi-layer film body 103 is produced; Forming a microstructure; or first completing a membrane with this surface structure, and then laminating it with the multilayer membrane body 103 . the

One of the functions of the surface structure layer 101 is to guide the path of light incident on the heat-insulating light-guiding film, such as changing the light incident on the heat-insulating light-guiding film to be guided to another specific direction, for example, a light source 10 is provided to generate The light incident on the heat insulating light guide film passes through the surface structure layer 101 and the multilayer film body 103 to form refracted light 11 , 12 or reflected light 13 . This heat insulating light guide film can be designed according to the needs of refracting or reflecting light. the

A more constructive example: guide the outdoor light (sunlight) to the room, or even guide it to the top of the room to form a lighting effect. Other embodiments can cooperate with a light guide installed indoors to allow light to be effectively guided to positions where light is needed. For example, the light guide can be evenly distributed on the ceiling of the room to effectively generate lighting. the

In this basic heat-insulating light-guiding film, there is a multi-layer film body 103 formed by overlapping and combining multi-layer films. After the multi-layer film body 103 is formed, it can be subjected to a stretching process. Stretch) or biaxial (biaxial stretch) extension process to produce a multilayer film structure with polarizing effect. The multilayer film structure undergoes a uniaxial stretching process, or a biaxial asymmetric stretching process, which produces the effect of changing the refractive index of the material in all directions, and can form polarization. The biaxial stretching method can be biaxial sequentially or simultaneously. Extension, and the biaxial symmetric extension has no polarization, while the biaxial asymmetric extension has a certain degree of polarization. the

FIG. 2 shows a schematic diagram of another embodiment of a heat-insulating light-guiding film. The heat-insulating light guide film of this example is provided with a substrate 203 first, which can be a substrate formed of glass or polymer, and a surface structure layer 201 is made on one side of the substrate 203 (in this example, the side of the light source 20). The layer 201 is preferably formed on the surface of the substrate 203 by means of roller or template embossing in the process. One of the uses of the optical effects produced by these structures is to guide the light entering the structure by using the principle of refraction. The bonding method for connecting the surface structure layer 201 and the substrate 203 includes bonding through a glue, preferably a transparent glue, such as a pressure-sensitive glue that becomes sticky under pressure, or an optical glue that is cured and bonded by light. the

The heat insulating light guide film forms a group of multilayer film bodies 205 on the other side of the substrate 203. The multilayer film bodies 205 are formed by overlapping materials with different refractive indices. Through the design of the multilayer film, specific The light in the light band can form a heat insulation effect, and the color change can also be controlled through the design of the multi-layer film, that is, the penetration and reflection of colored light can be controlled. In addition, it can also achieve polarized light, anti-glare, or guide light to produce lighting effects, etc. function. A group of multi-layer film bodies 205 can be extruded at one time through a co-extrusion process, or extruded layer by layer, and finally attached to the substrate 203, such as pressure-sensitive adhesive (PSA) or Bonding with optical glue, light curing, etc. the

The figure shows that the light source 20 (such as the sun) enters the heat-insulating light guide film from the side of the surface structure layer 201. The incident light includes the light 21 that directly passes through the multilayer structure film, and also includes the reflected light 23 and the refracted incoming light. twenty two. the

Like the above-mentioned embodiments, the surface structure layer 201 of this example can effectively guide light, especially from the outside into the room, especially from the upper part, to produce the effect of indoor lighting, or cooperate with other light guide devices to achieve the effect of uniform lighting. The heat insulation effect can be controlled by adjusting the material composition and thickness of the multilayer film body 205 to control the wavelength band of light to be reflected, such as the wavelength band of infrared light or ultraviolet light. the

For this example, please refer to the schematic diagram of the thermal insulation light guide film shown in FIG. 3 . The heat insulating light guide film includes a surface structure layer 301 on the surface, its main function is to effectively guide light to a specific direction, and the part of the multilayer film body 32 can be modularized, that is, one or more Functional multilayer film modules 303 , 305 , and 307 are combined into a multilayer film body 32 according to requirements. the

The multilayer film body 32 of this example includes a first multilayer film module 303, a second multilayer film module 305 and a third multilayer film module 307, and each multilayer film module is also adjacent to each other by stacking multiple layers. Composed of thin films with different refractive indices, the design of the thickness and each layer of material (refractive index) produces the function of isolating or passing light of a specific wavelength band, including the effects of heat insulation, color change, polarization, anti-glare, guiding light, etc. , the film body 32 can be composed of one or more individual multi-layer film modules with specific functions according to requirements, so it can form a film body with multiple functions, including heat insulation, polarizing and/or blocking multiple light band of light, etc. Each multi-layer film module can also be extruded by a co-extrusion process, or produced layer by layer, and then laminated. Through the design of multi-layer film modules with multiple functions, the effects of filtering specific light bands, polarized light, and heat insulation (such as blocking infrared light or ultraviolet light) can be produced. the

The surface of the multilayer film body 32 is provided with a surface structure layer 301 , and the fabrication methods of the structure layer 301 include the following methods, which are applicable to the embodiments of the above-mentioned multilayer film structures. the

The process includes coating a polymer material on the surface of the multilayer film structure by coating on one side of the completed multilayer film structure, and then embossing with a template or roller with a surface pattern by embossing Molding; or a film with this surface structure can be formed first, and then laminated on the multi-layer film structure with transparent glue. The transparent glue can be an optical glue, such as UV glue, which can be light-cured, pressure-sensitive glue or heat-cured Ways to shape and bond structures. the

In the embodiment shown in FIG. 3, a substrate (not shown in FIG. 3) may also be provided between the surface structure layer 301 and the multilayer film body 32, and the materials of the substrate and each layer of film are mostly thermoplastic polymers. Polymers, such as polymethyl methacrylate (Poly(Methyl methacrylate), PMMA), polycarbonate resin (Polycarbonate, PC), methyl methacrylate polystyrene ((Methyl methacrylate) Styrene, MS) and polyphenylene Ethylene (Poly Styrene, PS), and poly(Ethylene Terephthalate), PET), polyethylene naphthalate (Poly(Ethylene Naphthalate), PEN), polypropylene (Polypropylene, PP ) and at least one material or its copolymers in the material group consisting of, but not limited to the above. The materials described here can be applied to the various layer structures of the heat-insulating light-guiding film disclosed in the above-mentioned embodiments. the

The above-mentioned embodiments can be applied to the co-extrusion process of making the multi-layer film structure, and the multi-layer polymer material film in the heat-insulating light guide film is stretched uniaxially or biaxially through a stretching process. The optical film layers of the polymer material have the effect of refractive index difference in each direction, so that the film in the heat-insulating light guide film has different refractive index characteristics in the X and Y directions on the plane, or different from the vertical Z direction. properties of the refractive index. Use the extension process to perform biaxial extension on the material forming the birefringent material layer, which can be extended several times in the longitudinal direction (MD) by successive biaxial extensions, and extended several times in the transverse direction (TD), or can be extended longitudinally and laterally by simultaneous biaxial extension. After stretching several times, different film layers after stretching have a certain difference in refractive index. the

Next, as shown in FIG. 4A to FIG. 4E , the surface structure of the heat-insulating light-guiding film can be designed in various ways according to requirements and applicable environments. the

The embodiments shown in Figures 4A to 4E and other figures show that the surface structure section roughly presents a geometric structure, such as regular or irregular geometric shapes such as triangles and polygons. That is, the geometrically shaped structure extends on the surface of the substrate or the multilayer film. the

As shown in FIG. 4A , relative to the normal line of the vertical surface, the apex of the surface structure 401 that is approximately triangular is based, and two angles (θ1 and θ2) are formed inside relative to the normal line, wherein the light source 40 is formed by One side of the angle θ1 enters the surface structure 401 forming an angle θ4 with the normal. In order to achieve the effect of guiding light to penetrate and refract upward, according to the results of light path experiments, the refractive index of the material is about 1.5, where θ1 is about 18 to 30 degrees, and θ2 is preferably about 19 to 27 degrees. This example effectively guides the light from one side (outdoor light) to the other side (indoor) through the design of the substrate 403 and the multilayer film body 405 (including the thickness, each layer, and the overall refractive index). Above, for example, the angle and normal of the penetrating light can have θ3, so it can produce lighting effects. the

In another embodiment, when the light source 40 has different incident angles, the design of the above-mentioned surface structure 401 should be modified, such as: if the included angle between the inner side of the surface structure 401 and the normal is θ1 about 33 to 47 degrees, then θ2 is preferably about 33 to 47 degrees. 15 to 25 degree angle. the

Since the heat-insulating and light-conducting film described in this specification may be installed outdoors, such as the surface of a building's exterior window, it may have a passivated structure that has been eroded by particles in the outdoor environment for years, as shown in Figure 4B. The surface structure of passivation phenomenon 401', the result of passivation may lead to change the characteristics of this surface structure, but according to the experiment, if it is properly cleaned, or the material is used or coated with a material or functional coating with self-cleaning function , such as titanium dioxide in titanium oxide, or the use of fine structures to make dust less likely to stick to it, can avoid the problem of functional degradation caused by structure contamination and passivation. Such changes do not pose a problem of substantially changing the optical properties of the surface structure. The embodiment is shown in FIG. 4B. If the optical properties of the surface structure 401' are not affected too much, with the design of the substrate 403 and the multi-layer film body 405, the heat-insulating light-guiding film can still effectively guide light into the room. . the

Next, as shown in FIG. 4C, the embodiment of the heat-insulating light-guiding film mainly includes a surface structure 402 and a multi-layer film body 406, both of which can be arranged on both sides of the substrate 404, and the light source 40 in this example consists of multiple The side of the film body 406 faces the heat-insulating light-guiding film. the

The light shown in the figure enters the thermal insulation light guide film from the light source 40 , is refracted by the structure of the multilayer film body 406 and the substrate 404 , and then enters the surface structure 402 . The figure shows a normal line perpendicular to the surface of the base material 404, and the cross section of the surface structure 402 is approximately triangular in geometry, and the normal line passes through the vertices of the triangle to form two angles, as shown in the figure θ1 and θ2. When the light penetrates the multilayer film body 406 and the substrate 404, it is reflected by the side with the included angle θ1, and then refracted again by the side with the included angle θ2 to form the upward-facing light. the

From the light trajectories schematically depicted in this example, it can be seen that the heat-insulating light guide film proposed in this specification can effectively guide the incident light to the upper side of the other side, so as to facilitate the purpose of lighting. the

According to the experimental value, the heat-insulating light-guiding film described in FIG. 4C , wherein the preferred geometry of the surface structure is: θ1 is preferably about 25 to 35 degrees, and θ2 is preferably about 1 to 7 degrees. the

It should be noted that the structural angles of the above-mentioned aspects will change according to the set environment. If the light source is sunlight, it will be changed according to the average position of sunlight incident (for example, according to the latitude of the earth in the environment); and may be Because of the optical properties of the material of the surface structure, such as the refractive index; in order to achieve a certain purpose, the design of the surface structure will also take into account the optical properties of the multilayer film structure that the surface structure is matched with. the

In addition, according to requirements, the cross-section of the surface structure in the heat-insulating light-guiding film described in this specification can be polygonal, forming the surface structure features of polygonal corner columns, as shown in Figures 4D and 4E. the

Figure 4D schematically shows the heat-insulating light-guiding film, in which the surface structure section is a bilateral asymmetric polygon, and the light source (refer to the arrow) is incident from the side with the surface structure. After the design of the structure (including thickness and refractive index), it can be Direct the light to the other side, even create a refracted upward light. the

Compared with the embodiment shown in Fig. 4D, the light source in Fig. 4E first radiates to the multi-layer film body. Through the design of the multi-layer film in the film body, the light can be guided to the other side, and refracted by the surface structure, resulting in the other side upward of light. the

In the embodiment of the surface structure layer on the heat-insulating light-guiding film, the appearance of the surface structure layer will be designed according to requirements, and its main function is to guide light. The microstructure on the surface structure layer can be formed by template or roller embossing, usually a continuous and regularly changing structure, so as to produce stable and uniform refracted light. the

As shown in Figure 5, one of the surface structure embodiments of the heat-insulating light-guiding film of the present invention, the surface structure 53 shown in this example is a structural feature formed on the substrate 51 with a circular arc columnar section, and it extends to the whole or part of the structure. Columnar structures on the surface of the substrate 51 . The substrate 51 shown here can also be the multilayer film body described in the above embodiments, and the substrate such as glass is omitted. the

Another surface structure embodiment is schematically shown in FIG. 6 . the

This example shows that the cross-section of the surface structure 63 on the substrate 61 is also arc-shaped, and the structure extending to the whole or part of the substrate 63 is a surface microstructure with undulations. In this example, in addition to the arc-shaped cross section on one side, the columnar body also presents a change of ups and downs, forming a columnar wave pattern. This type of design can optically prevent the phenomenon of bright and dark bands caused by interference. the

The above examples of the surface structure, including the cross-sectional shape and the extended columnar structure, are not intended to limit the application of the present invention to the type of microstructure on the heat-insulating light-guiding film. the

FIG. 7A and FIG. 7B show an embodiment of a device in which the thermal insulation light guide film of the present invention is applied to a window. the

Figure 7A shows that the heat-insulating light-guiding film is set on a carrier 70 with a light-transmitting effect, for example, using pressure-sensitive adhesive (which becomes sticky when exposed to pressure) or optical glue to attach the heat-insulating light-guiding film to the opening on the carrier 70 places, such as window glass, acrylic and other light-transmitting substrates. the

For example, the above-mentioned carrier 70 is glass or transparent acrylic on the external windows of the building, and the heat-insulating light-guiding film is arranged on one side of the carrier 70, including the outdoor side or the indoor side. If it is arranged on the indoor side, it can avoid External environmental pollution and destruction. the

The heat-insulating light guide film is mainly composed of a multilayer film body 705 and a surface structure layer 701, or a substrate 703 may be provided as the supporting body of the multilayer film body, and the multilayer film body 705 and the surface structure layer 701 are respectively provided on both sides of the substrate 703 . In this example, the multilayer film body 705 is combined with the carrier 70 . the

When the light is irradiated to the device from the side of the carrier 70 (such as outdoors), the light enters the heat-insulating light guide film through the carrier 70, and first passes through the refraction and interference treatment of the multi-layer film body 705, which can block or reflect light of a specific light band according to requirements , to form light that can only penetrate the device in a specific light band, including effects such as polarization and heat insulation. Afterwards, light can enter the surface structure layer 701 through the substrate 703, and the optical properties of the surface structure layer 701 guide the light to the other side of the device (such as indoors). Guided by the surface structure layer 701, specific effects can be produced, such as A light source for indoor lighting is formed. the

In the embodiment shown in FIG. 7B , the side of the surface structure layer 701 of the heat-insulating light-guiding film is particularly attached to the carrier 70 . the

Since the surface structure layer 701 has a surface microstructure and is not flat, when it is attached to the surface of the carrier 70, when using colloids such as pressure-sensitive adhesive or optical glue as its connection means, the colloid 707 should fill the microstructure and the carrier. 70 surfaces, and finally form a surface structure with a corresponding surface microstructure. In order to prevent the colloid 707 with the surface structure from changing its optical properties, a low-refractive-index glue 707 close to the refractive index of air can be used ( The refractive index is about 1.2~1.4, close to air), such as a fluorine-based or silicon-functional adhesive. the

Still according to another embodiment, the space between the surface structure layer 701 and the carrier 70 can also be filled with a gas with specific optical properties. The optical properties of this type of gas include gas and liquid that can be filled without changing the optical properties of existing devices. or other objects, and may also include gases that have the effect of heat insulation or isolation of specific light bands, such as: argon, krypton, xenon and other gases with lower thermal conductivity than air, thereby producing heat insulation effects, or can improve Inert gas with thermal insulation ability, or other gases or liquids that can insulate heat (reflect infrared rays) and block ultraviolet rays. the

According to the various implementations of the heat-insulating light-guiding film proposed by the present invention, the structure pattern on the surface of the heat-insulating light-guiding film may not be a single structural feature, but may be a mixture of multiple types of structural features, such as mixing circles at the same time. The arc-column and triangular-column structures in a surface structure generate optical properties according to specific requirements, such as meeting the requirements of different incident light angles. For example, outdoor sunlight has different angles from morning to night. If a mixed surface structure is applied, different incident angles at different times may be effectively incident indoors due to the surface structure. the

First embodiment:

Figure 8 shows one of the embodiments of the device of the present invention having a thermally insulating light directing film. the

This example shows a window 8, which is provided with a rotatable window 82. The structural details are not detailed here. The key point is that the structure of the window 82 itself is pivotally connected to the window 8, such as the middle part, the two ends and the structure of the window 8. Connected, can rotate freely. the

The window 82 itself is the carrier of the heat-insulating light-conducting film 801. In this example, there is only one carrying device capable of adjusting the amount of incident light, that is, the window 82 itself. In other embodiments, as shown in FIGS. 10A and 10B, multiple carrying devices are combined to form a carrier. Form a device like a shutter. the

One surface of the adjustable window 82 is provided with a heat-insulating light-guiding film 801, so as the angle of the window 82 changes, the angle at which light enters the heat-insulating light-guiding film 801 is also changed, so that the incident light can be corrected according to user needs light path. For example, by changing the angle of the window 82 to adjust the lighting angle of the light guided by the thermal insulation light guide film 801 , or other optical effects can be adjusted accordingly. the

Next, as shown in FIG. 9A , a window with multiple angle-adjustable carrying devices 92 is shown. Each carrying device 92 is provided with a heat-insulating light-conducting film composed of a surface structure layer 901 , a substrate 903 and a multilayer film body 905 . The carrier formed as a whole is like a louver arranged on the external window of a building, and the plurality of bearing devices provided on the louver can be structurally a plurality of long plate-shaped blades for interlocking adjustment of angle. the

In this example, a plurality of supporting devices 92 can be interlocked through structural design. For example, shutter devices are commonly used to drive the connecting ropes of the blades, thereby adjusting the amount of incident light, and also adjusting the direction of light directed to the heat-insulating light-conducting film on the supporting device 92. Angle, through the change of optical characteristics, different effects are produced, such as adjusting the effect of heat insulation, adjusting the lighting angle caused by the light path due to the angle of the surface structure layer 901, lighting brightness, visual effects of light entering the space, etc. the

According to the embodiment shown in the figure, each heat-insulating light guide film attached to the carrying device 92 is attached to each carrying device 92 through the side of the multilayer film body 95 . In actual implementation, it is not necessary to provide heat-insulating and light-conducting films on all the carrying devices 92 , and only part of the carrying devices 92 may be provided with heat-insulating and light-conducting films as required. the

According to the embodiment shown in FIG. 9B , the thermal insulation and light guide film is attached to the surface of the carrying device 92 through the side surface of the surface structure layer 901 , such as the surface of each blade on the blind. Likewise, it is not necessary to provide heat-insulating light-guiding films on all the carrying devices 92 during implementation, and only part of the carrying devices 92 may be provided with heat-insulating and light-conducting films as required. the

In the embodiment of FIG. 9B, there is a gap between the surface structure layer 901 and the blade in the heat-insulating and light-guiding film, and a low-refractive-index glue can be filled in when attaching. The purpose of the low-refractive-index glue is not to affect the passing The original path of light to avoid affecting the design. These gaps can also be filled with a gas with specific optical characteristics, such as a gas that can insulate heat or isolate a specific light band, or a gas that has a lower thermal conductivity than air to strengthen the gap. The effect produced by the original heat insulation and light guide film. the

According to the above-mentioned embodiment shown in FIG. 9A and FIG. 9B, the supporting device 92 is like a plurality of long plate-shaped blades on the blinds that can adjust the angle in conjunction, and all or part of the surface is provided with a heat-insulating light-conducting film. Refer to FIG. 10A, An embodiment of a device with a thermally insulating light directing film is shown in 10B. the

Figure 10A shows the closed state of the louver. The structure of the louver includes a suspender that hangs multiple long plate-shaped blades 12 up and down. The multiple blades 12 are sequentially combined by the linkage rope 101 connecting the upper and lower suspension devices, and can be driven by an external control mechanism. The positions of the supporting blades 12 on the interlocking rope 101 are moved, and the relative relationship of each supporting point is changed to control the rotation angle of the blades 12, thereby achieving the effect of controlling the amount of incident light. the

FIG. 10B then shows a schematic diagram of the shutter in an open state, wherein a plurality of blades 12 are supported and driven by interlocking ropes 101 , and the structure is a general type of shutter. the

The interlocking rope 101 is driven by the control mechanism, so that the blades 12 are opened at an angle. Each blade 12 is provided with a layer of heat-insulating light-conducting film 14 . For the configuration, please refer to the above-mentioned FIG. 9A and FIG. 9B . By driving the rotation angle of the blade 12 to change the amount of light entering the light, the angle of the light entering the heat-insulating light-conducting film 14 is also changed to produce specific optical characteristics. the

To sum up, the device described in this specification using the heat-insulating light-guiding film includes a bearing device with a rotatable angle, and the heat-insulating light-guiding film is provided on the surface. By changing the angle of the incident light, the heat-insulating light-guiding film can produce specific optical effects , such as changing the path of guiding light, changing the effect of blocking infrared light, etc. the

However, the above descriptions are only preferred feasible embodiments of the present invention, and therefore do not limit the patent scope of the present invention. Therefore, all equivalent structural changes made by using the description and illustrations of the present invention are equally included in the scope of the present invention. Within the scope, agree with Chen Ming. the

Claims (20)

1. A device with heat-insulating light-conducting film, characterized in that the device comprises: A carrier formed by combining one or more carrying devices with the function of adjusting the angle; and One or more heat-insulating light-guiding films, the heat-insulating light-guiding films are combined on the same side or different sides of the one or more carrying devices on the carrier, wherein each of the heat-insulating light-guiding films includes: A multi-layer film body, which is composed of multi-layer polymer material thin films, wherein adjacent films have different refractive indices, and the light to be reflected is controlled by adjusting the material composition and thickness of the multi-layer film body band; A surface structure layer, combined with one side of the multi-layer film body, is used to guide the path of light incident to the heat-insulating light-guiding film. 2 . The device with heat-insulating light-guiding film according to claim 1 , wherein the carrier is a louver installed on an external window of a building. 3 . 3. The device with heat-insulating light-guiding film according to claim 2, characterized in that, the louver is provided with a plurality of said bearing devices, and the plurality of said bearing devices are long plates for interlocking angle adjustment shaped leaves. 4. The device with a heat-insulating light-guiding film according to claim 3, wherein a plurality of said heat-insulating light-guiding films are provided on all or part of the surface of said plurality of long-plate-shaped blades for interlocking angle adjustment. membrane. 5 . The device with a heat-insulating light-guiding film according to claim 4 , wherein each of the heat-insulating light-guiding films is attached to each of the blades through the side of the multi-layer film body. 6. The device with a heat-insulating light-guiding film according to claim 4, wherein each of the heat-insulating and light-guiding films is attached to each of the blades through the side of the surface structure layer. 7 . The device with heat-insulating light-guiding film according to claim 6 , wherein the gap between the surface structure layer and the blade is filled with a low-refractive-index glue. 8 . The device with heat-insulating light-guiding film according to claim 6 , wherein the space between the surface structure layer and the blade is filled with a gas with specific optical properties. 9 . The device with heat-insulating light-guiding film according to claim 8 , wherein the gas is a gas having the effect of insulating heat or isolating a specific light band. 10 . 10. The device of claim 9, wherein the gas has a lower thermal conductivity than air. 11. The device with heat-insulating light-guiding film according to claim 1, characterized in that, each of the heat-insulating light-guiding films further comprises a layer disposed between the multilayer film body and the surface structure layer The base material is combined with the multi-layer film body and the surface structure layer through a colloid. 12 . The device with heat-insulating light-guiding film according to claim 11 , wherein the substrate is glass or high molecular polymer material. 13 . 13. The device with heat-insulating light-guiding film according to claim 12, wherein the cross-section of the surface structure layer presents a geometric shape, and the structure having the geometric shape is extended on the surface of the substrate columnar structure. 14. The device with a heat-insulating light-guiding film according to claim 13, wherein the surface structure layer is a mixed type of columnar structure extending on the surface of the substrate. 15. The device with a heat-insulating light-guiding film according to claim 1, wherein the cross-section of the surface structure layer in each of the heat-insulating light-guiding films presents a geometric shape, and the structure having the geometric shape The body is a columnar structure extending on the surface of the multilayer film body. 16 . The device with heat-insulating light-guiding film according to claim 15 , wherein the surface structure layer is a mixed type of columnar structure extending on the surface of the multi-layer film body. 17 . The device with heat-insulating light-guiding film according to claim 1 , wherein infrared rays are blocked by adjusting the material composition and thickness of the multi-layer film in each of the heat-insulating light-guiding films. 18. The device with heat-insulating light-guiding film according to claim 1, characterized in that, the multi-layer film body of each said heat-insulating light-guiding film is formed by a stretching process to have different refractive indices in each direction Polarization, so that the plurality of blades have a polarizing function. 19 . The device with heat-insulating light guide film according to claim 18 , wherein the stretching process is a uniaxial stretching process or a biaxial stretching process. 19 . 20. The device with heat-insulating light-guiding film according to claim 1, wherein the multi-layer film body is composed of one or more multi-layer film modules with individual functions, and each of the multi-layer The membrane module is composed of multiple layers of adjacent thin films with different refractive indices.

Images