CN218119655U - Light guide device using natural light for illumination - Google Patents
Light guide device using natural light for illumination Download PDFInfo
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- CN218119655U CN218119655U CN202222257875.2U CN202222257875U CN218119655U CN 218119655 U CN218119655 U CN 218119655U CN 202222257875 U CN202222257875 U CN 202222257875U CN 218119655 U CN218119655 U CN 218119655U
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Abstract
The application discloses utilize light guide of natural light illumination, including the daylighting subassembly, the daylighting subassembly includes the daylighting frame, line type fresnel lens and semicylinder lens, the daylighting frame is the trapezoidal quadrangular structure of cavity, the front macrostoma end of daylighting frame is uncovered light inlet, the back osculum end of daylighting frame has a plurality of intervals to set up and is the light-emitting hole of linear range, line type fresnel lens sets firmly in the uncovered inner wall of light inlet of daylighting frame, semicylinder lens is a plurality of, every semicylinder lens all sets firmly in the daylighting frame and is located line type fresnel lens's spotlight focal plane, the light that semicylinder lens assembled is derived through light-emitting hole. The light guide device of this application, line type fresnel lens receive the solar radiation light and produce and assemble, and the facula that assembles is linear distribution, and half cylinder lens's cylinder limit is perpendicular with linear facula, can lead to the linear facula in light aperture to half cylinder lens and assemble, through setting up line type fresnel lens and half cylinder lens, assembles the light of two directions respectively, realizes higher collection optical efficiency.
Description
Technical Field
The application relates to the technical field of light guide illumination, in particular to a light guide device illuminated by natural light.
Background
With the improvement of living conditions of people, how to make the indoor with poor lighting conditions enjoy sunlight becomes a new problem for exploring the energy-saving field of buildings. The light guide illumination is a technology for realizing illumination by transmitting light emitted by a daylight source or an artificial light source through a pipeline. At present, a conventional light guide lighting system mainly includes a lighting device, a light guide device and a diffusion device, the lighting device is usually a hemispherical transparent light cover, the light guide device mostly adopts a light guide pipe, the light guide pipe is a metal pipeline with a high-reflection film plated on the inner wall, a certain bending angle is made according to installation requirements, and the diffusion device realizes the functions of diffusing and homogenizing light. However, the device is large in size, needs to be installed in a building design stage, is mainly suitable for buildings such as villas, underground garages and factory buildings, and is difficult to transform resident existing houses and difficult to popularize. In order to adapt to the change of the solar altitude at four seasons and different times in one day, a solar tracker is researched to control the movement of a lighting shade so as to collect light energy as much as possible, but the application of a control system needs independent power supply and brings difficulty to outdoor installation.
To this end, the chinese utility model discloses a market natural light importing system (application number: 2020114464986) based on sunlight collecting system, the lighting assembly of which includes a hemispherical cover fixed at one end of a support rod, the opening of the spherical cover is arranged towards the optical fiber, the application facilitates the transmission of the light transmitted by the optical fiber by the operator by arranging the opening of the spherical cover towards the optical fiber, the cover brightness of the lampshade is improved, but the light collecting efficiency of the spherical cover is relatively low, and the requirement for the installation place is high, which is not beneficial to the installation in the existing building.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides a light guide device illuminated by natural light to solve the above-mentioned technical problems.
The application provides a pair of utilize light guide of natural light illumination, the daylighting subassembly includes daylighting frame, line type fresnel lens and semicylinder lens, the daylighting frame is the trapezoidal quadrangular structure of cavity, and the front macrostoma end of daylighting frame is uncovered light inlet, and the back osculum end of daylighting frame has a plurality of intervals to set up and is the light-emitting hole of linear range, line type fresnel lens sets firmly in the uncovered inner wall of light inlet of daylighting frame, semicylinder lens are a plurality ofly to with light-emitting hole one-to-one, every semicylinder lens all sets firmly in the daylighting frame and is located line type fresnel lens's spotlight focal plane, the light that semicylinder lens assembled is derived through light-emitting hole.
The utility model provides an utilize light guide of natural light illumination, line type fresnel lens receive solar radiation light and produce and assemble, and the facula of assembling is linear distribution, and the cylinder limit of half-cylinder lens is perpendicular with linear facula, can assemble the linear facula of half-cylinder lens clear aperture. Through setting up line type fresnel lens and half post lens, assemble the light of two directions respectively, realize higher collection optical efficiency.
Optionally, the lighting device further comprises a light guide assembly and a light emitting assembly, wherein the light guide assembly comprises an optical fiber coupler, a heat conducting metal device and a plurality of light guide optical fibers, the heat conducting metal device is fixedly arranged in the lighting frame and is positioned at the rear side of the light gathering point of the semi-cylindrical lens, the light inlet ends of the plurality of light guide optical fibers are fixedly penetrated through the heat conducting metal device, and the light inlet end of each light guide optical fiber is connected with the optical fiber coupler positioned at the light gathering point of the semi-cylindrical lens; the light emitting component is positioned on the outer side of the lighting frame and is connected with the light outlet end of the light guide optical fiber.
Optionally, the plane of the linear fresnel lens faces the outside of the lighting frame, and a ratio of a focal length of the linear fresnel lens to a clear aperture of the linear fresnel lens is greater than or equal to 1.
Optionally, a ratio of the focal length of the semicylindrical lens to the light-passing hole of the semicylindrical lens is greater than or equal to 1.
Optionally, the light guide aperture of the light guide fiber is not less than 0.5mm.
Optionally, the heat conducting metal device includes a fixing plate and a heat conducting sleeve, a plurality of through holes arranged in a linear shape are formed in the surface of the fixing plate at intervals, the heat conducting sleeve is fixedly arranged in each through hole in a penetrating manner, and the light conducting optical fiber is in transition fit with the heat conducting sleeve.
Optionally, the light emitting assembly is an illumination light guide plate, and the light guide fiber extends into the illumination light guide plate from a side wall of the illumination light guide plate.
Optionally, the non-light-conducting surface of the illumination light guide plate is provided with a reflective film.
Optionally, the light emitting assembly is a lighting lamp bowl, and the light outlet end of the light guide fiber is led in from a light inlet hole at the bottom of the lighting lamp bowl.
Optionally, the lighting assemblies are multiple, and the multiple lighting assemblies are arranged in a spiral manner at intervals of a fibonacci number sequence to collect light energy at different angles, so that the utilization rate of illumination is improved.
Drawings
FIG. 1 is a schematic perspective view of a light guide device illuminated with natural light according to embodiment 1 of the present application;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a system layout of a light guide illuminated with natural light according to embodiment 1 of the present application;
FIG. 5 is a front view of the thermally conductive metallic device of FIG. 1;
in the reference symbols:
Detailed Description
The technical solutions of the present application are described in detail below with reference to the accompanying drawings and specific embodiments. In which like parts are designated by like reference numerals.
Example 1
Referring to fig. 1 to 3, the present embodiment discloses a light guide device using natural light illumination, which includes a light collecting assembly, the light collecting assembly includes a light collecting frame 10, a linear fresnel lens 11 and a semi-cylindrical lens 12, the light collecting frame 10 is a hollow trapezoidal quadrangular prism structure, a front large-opening end of the light collecting frame 10 is an open light inlet, a rear small-opening end of the light collecting frame 10 has a plurality of light outlets arranged at intervals and arranged in a linear manner, the linear fresnel lens 11 is fixed on an inner wall of the open light inlet of the light collecting frame 10, the linear fresnel lens 11 faces sunlight to receive solar radiation light and generate convergence, converged light spots are distributed in a linear manner, the semi-cylindrical lenses 12 are in one-to-one correspondence with the light outlets, each semi-cylindrical lens 12 is fixed in the light collecting frame 10 and located on a light condensing focal plane of the linear lens 11, a cylindrical side of the semi-cylindrical lens 12 is perpendicular to the linear light spots, so as to converge the linear light spots of the clear aperture of the semi-cylindrical lens 12, and the converged light is guided out through the light outlets.
The utility model provides an utilize light guide of natural light illumination, line type fresnel lens 11 receive solar radiation light and produce and assemble, and the facula of assembling is linear distribution, and the cylinder limit of semi-cylindrical lens 12 is perpendicular with linear facula, can assemble the linear facula of semi-cylindrical lens 12 clear aperture. By arranging the linear Fresnel lens 11 and the semi-cylindrical lens 12, light rays in two directions are respectively converged, and higher light collection efficiency is realized. The light guide device does not need power supply and control, does not need to reform the existing building, can be installed on a window or an outer wall through the lighting device, is suitable for being installed by ordinary residents, and is wider in applicability.
In an optional embodiment of the present application, the linear fresnel lens 11 is fixed at the open light inlet of the lighting frame 10 in a clamping manner, and the illumination primarily converged by the linear fresnel lens 11 is input into the semicylindrical lens 12, so that the semicylindrical lens 12 converges secondarily.
As shown in fig. 2, in an optional embodiment of the present application, a lens support 13 is fixedly disposed on a lighting frame 10, a plurality of mounting holes are uniformly disposed on the lens support 13 along a length direction of the lens support 13, each mounting hole is provided with a half-cylinder lens 12, that is, one linear fresnel lens 11 can guide light to the plurality of half-cylinder lenses 12, light converged by the linear fresnel lens 11 is in a straight line, and then the light is split by the plurality of half-cylinder lenses 12, so that the split light can be prevented from being converged by high energy to generate high temperature, the split light is converged again after passing through the half-cylinder lens 12, and the converged natural light becomes a point-like light source and is output again;
as shown in fig. 2 and 3, the light guide assembly includes an optical fiber coupler 20, a heat conducting metal device 21 and a plurality of light guide fibers 23, the heat conducting metal device 21 is fixedly disposed in the lighting frame 10 and located behind the light-gathering point of the semi-cylindrical lens 12, and conducts the collected and gathered light beams, the light-entering ends of the plurality of light guide fibers 23 fixedly penetrate through the heat conducting metal device 21, the light-entering end of each light guide fiber 23 is connected to the optical fiber coupler 20 located at the light-gathering point of the semi-cylindrical lens 12, and the optical fiber coupler 20 is used for adjusting the incident angle of the sunlight entering the light guide fibers 23 to achieve the optimal transmission effect;
the light converged by the linear Fresnel lens 11 is split by the plurality of groups of semi-cylindrical lenses 12, the split light is converged again after passing through the semi-cylindrical lenses 12, the converged natural light becomes a point-shaped light source and is projected into the optical fiber coupler 20, and the optical fiber coupler 20 can be prevented from being thermally damaged.
In an optional embodiment of the present application, the light emitting element is located outside the lighting frame 10 and connected to the light output end of the light guiding fiber 23, the plane of the linear fresnel lens 11 faces the outside of the lighting frame 10, and a ratio of a focal length of the linear fresnel lens 11 to a clear aperture of the linear fresnel lens 11 is greater than or equal to 1 to meet a requirement of a numerical aperture of the light guiding fiber 23, where the focal length of the linear fresnel lens 11 is a distance between the linear fresnel lens 11 and the fiber coupler 20.
In an optional embodiment of the present application, a ratio of a focal length of the semicylinder lens 12 to a light-passing aperture of the semicylinder lens 12 is greater than or equal to 1, so as to match a numerical aperture requirement of the light-guiding optical fiber 23, and the illumination energy input to the light-guiding optical fiber 23 can be controlled by replacing the semicylinder lens 12 with a different radius, where the focal length of the semicylinder lens 12 refers to a distance between the fiber couplers 20 of the semicylinder lens 12.
In an optional embodiment of the present application, the light guide aperture of the light guide fiber 23 is not less than 0.5mm, the fiber core of the light guide fiber 23 is made of PMMA, and the surface is a black PE sleeve.
As shown in fig. 5, the heat conducting metal device 21 includes a fixing plate 211 and a heat conducting sleeve 212, a plurality of through holes arranged in a linear shape are formed on the surface of the fixing plate 211 at intervals, the heat conducting sleeve 212 is fixedly inserted into each through hole, the light conducting fibers 23 and the heat conducting sleeve 212 are in transition fit with the heat conducting sleeve 212, the heat conducting sleeve 212 is made of copper, and the heat conducting sleeve 212 can conduct out the excessive heat that cannot be conducted into the light conducting fibers 23, so as to avoid damaging the light conducting fibers 23. Optionally, a locking nut is fixed on the outer wall of the heat conduction pipe, and the light guide optical fiber 23 can be fixed through the locking nut, so that the stability of the light guide optical fiber 23 is increased.
In an alternative embodiment of the present application, the light guide fiber 23 is led into the room through a ventilation duct or an air conditioner external machine hole inherent to the house, and the other end is connected to the indoor light emitting assembly to transmit natural light into the room;
in an alternative embodiment of the present application, the light emitting component is an illumination light guide plate (not shown in the drawings), the light guide fiber 23 extends into the illumination light guide plate from a sidewall of the illumination light guide plate, a non-light-conductive surface of the illumination light guide plate is pasted with a reflective film, by the arrangement of the reflective film, the light energy loss is reduced, and a reasonable layout is performed through the illumination light guide plate to achieve a desired illumination brightness;
as shown in fig. 4, the light emitting component is a lighting bowl 31, and the light outlet end of the light guiding fiber 23 is led in from a light inlet hole at the bottom of the lighting bowl 31.
Example 2
A light guide illuminated with natural light, comprising a plurality of light collection assemblies of embodiment 1, and the plurality of light collection assemblies are arranged helically at intervals of a fibonacci sequence. So as to collect light energy of different angles and further improve the utilization rate of illumination.
In the above, the technical solutions of the present application are introduced in detail with reference to specific embodiments, and the described specific embodiments are used to help understanding the idea of the present application. Those skilled in the art should also appreciate that they can make various changes, substitutions and alterations herein without departing from the scope of the present application as defined by the appended claims.
Claims (10)
1. A light guide illuminated with natural light, comprising a light collection assembly, wherein:
daylighting subassembly includes daylighting frame (10), line type fresnel lens (11) and semicylinder lens (12), daylighting frame (10) are the trapezoidal quadrangular structure of cavity, and the preceding macrostoma end of daylighting frame (10) is uncovered light inlet, and the back osculum end of daylighting frame (10) has a plurality of intervals to set up and be the light-emitting hole of linear arrangement, line type fresnel lens (11) set firmly in the uncovered light inlet's of daylighting frame (10) inner wall, semicylinder lens (12) are a plurality of to with light-emitting hole one-to-one, every semicylinder lens (12) all set firmly in daylighting frame (10) and are located the spotlight focal plane of line type fresnel lens (11), the light that semicylinder lens (12) assembled is derived through light-emitting hole.
2. A light guide device illuminated with natural light according to claim 1, wherein: the lighting device is characterized by further comprising a light guide assembly and a light emitting assembly, wherein the light guide assembly comprises an optical fiber coupler (20), a heat conducting metal device (21) and a plurality of light guide optical fibers (23), the heat conducting metal device (21) is fixedly arranged in the lighting frame (10) and is positioned on the rear side of the light gathering point of the semi-cylindrical lens (12), the light inlet ends of the plurality of light guide optical fibers (23) fixedly penetrate through the heat conducting metal device (21), and the light inlet end of each light guide optical fiber (23) is connected with the optical fiber coupler (20) positioned on the light gathering point of the semi-cylindrical lens (12); the light-emitting component is positioned on the outer side of the lighting frame (10) and is connected with the light-emitting end of the light guide optical fiber (23).
3. A light guide device using natural light for illumination as recited in claim 2, wherein: the plane of the linear Fresnel lens (11) faces the outside of the lighting frame (10), and the ratio of the focal length of the linear Fresnel lens (11) to the clear aperture of the linear Fresnel lens (11) is more than or equal to 1.
4. A light guide device illuminated with natural light according to claim 2, wherein: the ratio of the focal length of the semi-cylindrical lens (12) to the light through hole of the semi-cylindrical lens (12) is more than or equal to 1.
5. A light guide device using natural light for illumination as recited in claim 2, wherein: the light guide aperture diameter of the light guide optical fiber (23) is not less than 0.5mm.
6. A light guide device illuminated with natural light according to claim 2, wherein: the heat conduction metal device (21) comprises a fixing plate (211) and a heat conduction sleeve (212), a plurality of through holes which are linearly arranged are formed in the surface of the fixing plate (211) at intervals, the heat conduction sleeve (212) is fixedly arranged in each through hole in a penetrating mode, and the light guide optical fibers (23) are in transition fit with the heat conduction sleeve (212).
7. A light guide device illuminated with natural light according to claim 2, wherein: the light-emitting component is an illumination light guide plate, and the light guide optical fiber (23) extends into the illumination light guide plate from the side wall of the illumination light guide plate.
8. A light guide device illuminated with natural light according to claim 7, wherein: and a non-light-conducting surface of the illumination light guide plate is pasted with a reflective film.
9. A light guide device illuminated with natural light according to claim 2, wherein: the light-emitting component is a lighting lamp bowl (31), and the light outlet end of the light guide optical fiber (23) is led in from a light inlet hole at the bottom of the lighting lamp bowl (31).
10. The light guide using natural light illumination of claim 1, wherein said lighting assembly is plural and the plural lighting assemblies are arranged spirally at intervals of a Fibonacci series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222257875.2U CN218119655U (en) | 2022-08-26 | 2022-08-26 | Light guide device using natural light for illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222257875.2U CN218119655U (en) | 2022-08-26 | 2022-08-26 | Light guide device using natural light for illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218119655U true CN218119655U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222257875.2U Active CN218119655U (en) | 2022-08-26 | 2022-08-26 | Light guide device using natural light for illumination |
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| Country | Link |
|---|---|
| CN (1) | CN218119655U (en) |
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2022
- 2022-08-26 CN CN202222257875.2U patent/CN218119655U/en active Active
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