CN117469621A - Novel high-power lighting system and application - Google Patents
Novel high-power lighting system and application Download PDFInfo
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- CN117469621A CN117469621A CN202311519309.7A CN202311519309A CN117469621A CN 117469621 A CN117469621 A CN 117469621A CN 202311519309 A CN202311519309 A CN 202311519309A CN 117469621 A CN117469621 A CN 117469621A
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- light
- lighting system
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- transmission
- power lighting
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- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 239000013307 optical fiber Substances 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 238000009792 diffusion process Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 238000007493 shaping process Methods 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000004965 Silica aerogel Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 239000004038 photonic crystal Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 1
- 230000003595 spectral effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 description 21
- 239000004964 aerogel Substances 0.000 description 13
- 229910052814 silicon oxide Inorganic materials 0.000 description 13
- 230000005855 radiation Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/10—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention provides a novel high-power lighting system, which comprises an LD emission device, a transmission optical fiber, a light collimation device and a light diffusion device, wherein the LD emission device is connected with the light collimation device through the transmission optical fiber, and the light diffusion device is positioned at the output end of the light collimation device; the light beam emitted by the LD emission device is transmitted to the light collimation device through the transmission optical fiber, and then is transmitted to the light diffusion device through the output end of the light collimation device so as to complete the transmission of the light beam. The LED outdoor lighting lamp can be used in severe environments with more water, rain and dust, does not need an environment protection structure with higher design cost, and can reduce the weight of the lamp and save the application cost compared with other LD outdoor lighting application patents. This patent lighting system adopts optic fibre transmission light reducible electric leakage risk and improves device factor of safety.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to a novel high-power illumination system and application.
Background
Since the advent of incandescent lamps, the lighting industry has experienced a technological transition from incandescent lamps to fluorescent lamps to LED light sources, with a continual increase in the efficiency of electro-optic conversion. The technology development has been carried out for many years from the breakthrough of the middle village on the blue light LED invention, so that the efficiency of the LED light source is obviously improved. However, in recent years, the technical level of LED light sources has touched a bottleneck, and the speed of improvement of the electro-optic conversion efficiency thereof has become slow.
Various illumination technologies developed around LD light sources have been developed, but there are also disadvantages such as a problem of glare generated from an illumination device due to too concentrated light emitted from the LD light sources, and a problem of low uniformity of illumination; for another example, the complex structure of the lighting device results in a high risk of failure; also, since the spectrum of the LD light source is narrow, the color rendering property of the lighting device is poor.
Disclosure of Invention
The invention provides a novel high-power lighting system and application aiming at one of the technical problems existing in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
according to a first aspect of the present invention, there is provided a novel high power lighting system comprising:
the device comprises an LD emission device, a transmission optical fiber, a light collimation device and a light diffusion device, wherein the LD emission device is connected with the light collimation device through the transmission optical fiber, and the light diffusion device is positioned at the output end of the light collimation device; the light beam emitted by the LD emission device is transmitted to the light collimation device through the transmission optical fiber, and then is transmitted to the light diffusion device through the output end of the light collimation device so as to complete the transmission of the light beam.
Aiming at the technical scheme of the invention, the following improvements can be made:
optionally, the LD emission device includes an LD light source array and a beam shaping coupling device, and the LD light source array is a semiconductor pump source; the beam shaping and coupling device comprises a beam shaping device and a beam coupling device which are packaged together; the output end of the LD light source array is connected with the input end of the light beam shaping coupling device, and the output end of the light beam shaping coupling device is connected with the transmission optical fiber.
Optionally, the transmission fiber is a double-clad fiber or a photonic crystal fiber.
Optionally, the transmission optical fiber is uniformly doped with rare earth elements with the functions of optical wavelength, spectrum conversion or optical gain.
Optionally, the LED lamp further comprises a reflector, wherein the reflector is positioned on one side of the light diffusion device, and the reflected light direction of the reflector is aligned to the direction required to be illuminated.
Optionally, the light diffusion device is made of silica aerogel materials, the light diffusion device is provided with a plurality of deep holes, and the axis direction of the deep holes is consistent with the incident direction of the light beam.
According to a second aspect of the present invention, there is provided the use of a novel high power lighting system comprising the use of the novel high power lighting system as defined in any one of the above in indoor and outdoor lighting environments.
The invention provides a novel high-power lighting system and application, which adopts optical fibers to transmit light rays, adopts silicon oxide aerogel as a laser diffusion device, can be used in severe environments with more water, rain and dust, has no external electrical connection, and is a lighting system with wide application; and the environment protection structure with higher design cost is not needed, so that the weight of the lamp can be reduced and the application cost can be saved compared with other LD outdoor illumination application patents. This patent lighting system adopts optic fibre transmission light reducible electric leakage risk and improves device factor of safety.
The up-conversion fluorescent material optical fiber doped with Er, yb or other rare earth is used as a light transmission mode, so that the light energy can be enhanced in the light transmission process. Alternatively, or use doped Pr 3+ 、Ce 3+ YAG and other mixed rare earth fluorescent material doped optical fibers can realize illumination of any color including white light and obtain white light with CRI index greater than 80.
This patent lighting system adopts silica aerogel as laser diffusion device, can obviously promote the light scattering degree of consistency, improves lighting fixture illuminance degree of consistency. The high hydrophobicity of the silica aerogel material can be used as a luminous body to reduce the maintenance coefficient of the lighting lamp. Optionally, various fluorescent powder can be added into the silicon oxide aerogel or the silicon oxide aerogel can be irradiated based on three primary colors of laser to realize illumination of any color including white light.
The silicon oxide aerogel is used as a laser diffusion device, and can bear high-power-density laser radiation due to the characteristics of ultra-low absorbance and high laser damage threshold of the material. Therefore, the defects that other laser illumination patent structures can only use lower power illumination and the risk of failure caused by high-power laser illumination is high can be overcome. The service life of the laser irradiation device can be prolonged compared with other existing laser illumination technologies.
The silicon oxide aerogel is used as a laser diffusion device, and the material itself uses methyltrimethoxysilane as a precursor, so that the crosslinking density of the obtained silicon oxide aerogel is reduced, the mechanical property is improved, the silicon oxide aerogel can be compressed to 80% of the self size, and the silicon oxide aerogel can be applied to an illumination scene, so that the anti-seismic property of the illumination device can be greatly improved, and the service life of the illumination device is prolonged.
When the illumination system is applied to street and road illumination scenes, the lamp post can be effectively utilized as an optical fiber radiator, so that the radiating area is greatly enhanced.
Drawings
Fig. 1 is a schematic diagram of a novel high-power lighting system and an application of the embodiment.
Fig. 2 is a schematic diagram of an application scenario and a structure of a novel high-power lighting system and an application according to an embodiment.
Wherein, LD emitter 1, transmission fiber 2, light collimator 3, light diffuser 4, LD light source array 101, and beam shaping coupler 102.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Fig. 1 shows a working schematic diagram of a novel high-power lighting system and application. The novel high-power lighting system and application thereof are characterized in that a plurality of single LD light source arrays 101 form a high-power light radiation source, array light is radiated, the light is coupled into a transmission optical fiber 2 after being shaped and collimated by a beam shaping coupling device 102, the transmission optical fiber 2 can form a laser resonant cavity for transmitting, amplifying or/and converting the light, the transmission optical fiber 2 is fixed by a light collimating device 3, the light collimating device 3 enables the axis of the transmission optical fiber 2 and the axis of an incident hole of a light diffusing device 4 to form a coaxial relation, the light diffusing device 4 obtains the incident light, and a luminous body for uniformly diffusing the light is formed.
Specifically, the LD emission device 1 includes an LD light source array 101 and a beam shaping coupling device 102. The LD emitter 1 can emit a high-power laser light source using a plurality of individual laser diodes included in the LD light source array 101. The LD light source array 101 sequentially fixes a plurality of single laser diodes in the LD emitter 1, receives electric energy and emits array light. The array light has asymmetric light intensity distribution and astigmatism problems on the fast and slow axes due to the light emitted by the laser diode, and the coupling quality and the coupling efficiency are affected. After shaping, the fiber is combined and coupled into the fiber.
The beam shaping coupling means 102 provide a beam shaping function and a beam coupling function. The beam shaping coupling means 102 comprise a beam shaping device and a beam coupling device. The beam shaping device has the functions of improving the quality of the light beam and reducing the dispersion of the light beam under the under-collimation condition; the beam coupling device has the functions of coupling the shaped and collimated beam into an optical fiber after combining the beam and eliminating beam speckles. In a preferred scheme, the working flow of the beam shaping device is to use a group of aspheric lenses to perform fast axis collimation on LD array light, and then use a group of stepped lenses to perform slow axis collimation on incident light after the fast axis collimation. In a preferred scheme, the beam coupling device adopts a group of lenses to spatially filter and focus the collimated and shaped light beam on the end face of the optical fiber. Efficient coupling of pump light to the fiber is achieved.
The transmission fiber 2 provides transmission and enhancement or conversion functions of pumping light. The transmission fiber 2 can be a double-clad fiber or a photonic crystal fiber, and when the transmission fiber 2 only needs to have transmission and enhancement functions, doped up-conversion fluorescence is usedOptical fibers (such as erbium-doped and ytterbium-doped fibers) made of optical materials can be used as the optical resonant cavity to effectively enhance the transmission light. When the transmission fiber 2 is required to have only transmission and conversion functions, a fiber doped with a spectrum conversion fluorescent material (e.g., ce doped 3+ :YAG、Pr 3+ Optical fiber) can realize the spectrum conversion and transmission functions of input light and can realize the conversion of transmission light into light with various colors including white light, and the CRI index of the white light can reach more than 80.
The light collimation device 3 provides the functions of fixing the transmission optical fiber 2 and coaxially collimating the transmission optical fiber 2 and the incidence deep hole of the light diffusion device 4, so that the transmission light of the optical fiber can be accurately injected into the incidence hole of the light diffusion device 4 along the axial direction of the optical fiber, and the light diffusion device 4 emits light.
The light diffusing means 4 provides the function of uniformly diffusing the incident light and/or converting the spectrum of the incident light. The light diffusion device 4 is formed by a silicon oxide aerogel material, and methyltrimethoxysilane is used as a precursor, so that the crosslinking density of the obtained silicon oxide aerogel is reduced, the mechanical property is improved, the silicon oxide aerogel can be compressed to 80% of the self size, and the compression strength is more than 1MPa. The silica aerogel skeleton contains rich methyl groups, has ultrahigh hydrophobicity, can be further applied to non-contact laser driving illumination in rain, underwater and long distance, and can be applied to illumination scenes with difficult maintenance to reduce the maintenance coefficient of the device; the building unit size of the silica aerogel is larger than 24nm and smaller than 40nm, the silica aerogel is provided with deep holes manufactured along the incident direction, and the illuminance uniformity (0.770-0.862) of scattered laser is higher than the requirement of the international standardization organization on indoor workplace illumination; illuminance variation Coefficient (CIV) as low as 8.1% which is far lower than commercial scattering materials; speckle contrast is below the human eye recognition limit (4%). The silica aerogel can realize illumination with various colors including white light based on three primary colors of laser and commercial fluorescent powder. The absorbance of the silicon oxide aerogel is lower than 1%, the laser damage threshold is as high as 10.29 J.cm < -2 >, and the silicon oxide aerogel can bear high-power density laser radiation.
The reflecting cover provides a light reflection function, and when the system is required to be applied to a lighting scene as a light interception type lamp or a half light interception type lamp device, the reflecting cover can reflect the radiation rays in a certain direction of the luminous body, so that the application of the light interception type lamp or the half light interception type lamp is realized.
In the application of a specific embodiment, the novel high-power lighting system and the application thereof, a plurality of single LD light source arrays 101 form a high-power light radiation source, array light is radiated, the light is coupled into a transmission optical fiber 2 after being shaped and collimated by a beam shaping coupling device 102, the transmission optical fiber 2 can form a laser resonant cavity to transmit, amplify or/and convert the light, the transmission optical fiber 2 is fixed by a light collimating device 3, the light collimating device 3 enables the axis of the transmission optical fiber 2 and the axis of an incident hole of a light diffusing device 4 to form a coaxial relation, the light diffusing device 4 obtains the incident light, and a luminous body of the uniformly diffused light is formed.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. The novel high-power lighting system is characterized by comprising an LD emission device, a transmission optical fiber, a light collimation device and a light diffusion device, wherein the LD emission device is connected with the light collimation device through the transmission optical fiber, and the light diffusion device is positioned at the output end of the light collimation device; the light beam emitted by the LD emission device is transmitted to the light collimation device through the transmission optical fiber, and then is transmitted to the light diffusion device through the output end of the light collimation device so as to complete the transmission of the light beam.
2. The novel high-power lighting system according to claim 1, wherein the LD emission device comprises an LD light source array and a beam shaping coupling device, the LD light source array being a semiconductor pump source; the beam shaping and coupling device comprises a beam shaping device and a beam coupling device which are packaged together; the output end of the LD light source array is connected with the input end of the light beam shaping coupling device, and the output end of the light beam shaping coupling device is connected with the transmission optical fiber.
3. The novel high-power lighting system according to claim 1, wherein the transmission fiber is a double-clad fiber or a photonic crystal fiber.
4. The novel high-power lighting system according to claim 1, wherein the transmission fiber is uniformly doped with rare earth elements having optical wavelength, spectral conversion or optical gain effects.
5. The novel high-power lighting system according to claim 1, further comprising a reflector, wherein the reflector is located at one side of the light diffusing device, and the direction of the reflected light of the reflector is aligned to the direction to be illuminated.
6. The novel high-power lighting system according to claim 1, wherein the light diffusion device is made of silica aerogel materials and is provided with a plurality of deep holes, and the axis direction of the deep holes is consistent with the incidence direction of the light beam.
7. Use of a novel high-power lighting system, characterized in that the use of the novel high-power lighting system comprises the use of the novel high-power lighting system according to any one of claims 1-6 in indoor and outdoor lighting environments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311519309.7A CN117469621A (en) | 2023-11-15 | 2023-11-15 | Novel high-power lighting system and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311519309.7A CN117469621A (en) | 2023-11-15 | 2023-11-15 | Novel high-power lighting system and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117469621A true CN117469621A (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311519309.7A Pending CN117469621A (en) | 2023-11-15 | 2023-11-15 | Novel high-power lighting system and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117469621A (en) |
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2023
- 2023-11-15 CN CN202311519309.7A patent/CN117469621A/en active Pending
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