CN112879842A - Laser lighting system applied to plant growth - Google Patents
Laser lighting system applied to plant growth Download PDFInfo
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- CN112879842A CN112879842A CN202110320728.2A CN202110320728A CN112879842A CN 112879842 A CN112879842 A CN 112879842A CN 202110320728 A CN202110320728 A CN 202110320728A CN 112879842 A CN112879842 A CN 112879842A
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- 230000008635 plant growth Effects 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 239000013307 optical fiber Substances 0.000 claims abstract description 27
- 238000007493 shaping process Methods 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 239000004065 semiconductor Substances 0.000 claims description 13
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000012010 growth Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
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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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/20—Dichroic filters, i.e. devices operating on the principle of wave interference to pass specific ranges of wavelengths while cancelling others
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
本发明提供了一种应用于植物生长的激光照明系统，包括沿光路传播方向依次设置的多个不同波长的激光光源、光束耦合整形光路和数字分光计；所述光束耦合整形光路将各个不同波长的激光光源进行腔外光栅合束整形，再通过数字分光计将不同波长的光按比例分配给植物。本发明将各个不同波长的植物生长所需要的光通过腔外激光光栅合束整形，得到高质量的光束，耦合整形后的光束经传输光纤传输，传输光纤尾部采用圆弧形，可以让光更均匀的从光纤尾部射出，增加了光束的质量，并提高了整个系统的稳定性，弧形反射杯形成类平行的光束经聚焦透镜汇入数字分光计。数字分光计将不同波长的光按所需要的比例分配给植物，以加快植物的生长。
The invention provides a laser lighting system applied to plant growth, comprising a plurality of laser light sources with different wavelengths, a beam coupling shaping optical path and a digital spectrometer arranged in sequence along the propagation direction of the optical path; The laser light source is used for extra-cavity grating beam combining and shaping, and then the light of different wavelengths is distributed to the plants proportionally through the digital spectrometer. In the invention, the light required for plant growth with different wavelengths is combined and shaped by an extra-cavity laser grating to obtain a high-quality light beam. The coupled and shaped light beam is transmitted through a transmission optical fiber, and the transmission fiber tail adopts an arc shape, which can make the light more It is uniformly emitted from the tail of the fiber, which increases the quality of the beam and improves the stability of the entire system. The arc-shaped reflector cup forms a quasi-parallel beam and enters the digital spectrometer through the focusing lens. A digital spectrometer distributes light of different wavelengths to plants in the required proportions to speed up plant growth.
Description
Technical Field
The invention relates to the technical field of applied optics, in particular to a laser lighting system applied to plant growth.
Background
At present, the high and new laser technology in China is mainly applied to aspects of military affairs, industry, aerospace and the like, but China is still a large agricultural country, and the demand for plant yield is increasing day by day. The laser has extremely high radiant energy flow, excellent monochromaticity and excellent directivity, and researches on biological effects generated by the plants find that the photosynthetic efficiency of the plants can be improved by the laser with a proper dosage, so that the growth and development of the plants are promoted, the problems of insufficient plant illumination, light lack of certain wave bands of the plants and the like are solved, and the aim of increasing the growth of the plants is fulfilled.
In the aspect of plant growth, the LED lamp is mainly used for supplementing light to plants so as to accelerate the growth of the plants, but although the cost of the LED lamp is low, the LED lamp has obvious defects, such as poor thermal stability, low luminous intensity, insufficient matching of wavelengths, low quantum efficiency and the like. However, the laser has excellent monochromaticity, directivity and extremely high radiation energy flow, and can effectively solve the problem. In the aspect of laser lighting, the existing laser lighting mainly superposes light sources with the same wavelength so as to improve the light beam quality of light and improve the light efficiency, but the light with single wavelength cannot meet the requirement of plant growth, and simple superposition of multiple light sources cannot be distributed to different plants as required.
Therefore, how to provide a laser lighting system which distributes light with different wavelengths to plants according to needs is a problem which needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the invention provides a laser lighting system applied to plant growth, which solves the defects of the previous LED lamp and the previous laser lighting system in the aspect of plant growth, accelerates the growth of plants, and is convenient for users to use and simple and convenient to operate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a laser lighting system applied to plant growth comprises a plurality of laser light sources with different wavelengths, a light beam coupling shaping light path and a digital spectrometer which are sequentially arranged along the propagation direction of a light path;
the light beam coupling shaping light path carries out grating beam combination shaping on the laser light sources with different wavelengths, and then the light with different wavelengths is distributed to plants in proportion through a digital spectrometer.
Preferably, the laser light sources with different wavelengths are arranged in an array.
Preferably, the beam coupling shaping optical path comprises a collimating mirror, a first focusing lens, a transmission grating, a transmission optical fiber, an arc-shaped reflecting cup and a second focusing lens which are sequentially arranged along the propagation direction of the optical path;
the number of the collimating lenses is multiple, and the output light path of each laser light source corresponds to one collimating lens;
the first focusing lens focuses the collimated laser beam and enables the collimated laser beam to be incident to the transmission grating;
the transmission grating is used for coupling and shaping a plurality of lasers with different wavelengths and converging the lasers into the transmission optical fiber; combining light beams using a transmission grating may preserve beam quality and increase power compared to other conventional incoherent combining beams. Compared with other conventional coherent beam combination, the method is easier to implement without precisely controlling the point position and the optical path of the light.
The arc-shaped reflecting cup reflects the laser emitted by the tail part of the transmission optical fiber into a beam similar to parallel and converges into the focusing lens II;
and the light rays focused by the second focusing lens enter the digital spectrometer.
Preferably, the plurality of laser light sources with different wavelengths comprise a 405 nm-waveband GaAs semiconductor laser, a 375 nm-waveband GaAs semiconductor laser and a 635 nm-waveband GaAs semiconductor laser. The reason why the GaAs semiconductor lasers of three wavelength bands are selected respectively is that: the light absorption rate of the plant growth to the three wave bands is high, and the GaAs semiconductor laser has the following advantages:
(1) the volume is small and the weight is light;
(2) the driving power and current are low;
(3) the efficiency is high, and the service life is long;
(4) can be directly electrically modulated.
Preferably, the tail part of the transmission optical fiber is arc-shaped, and emergent light is uniformly emitted from the tail part of the optical fiber, so that the heat generated when the tail part of the transmission optical fiber is concentrated by laser is reduced, and the quality of light beams is improved.
Preferably, the concave surface of the arc-shaped reflecting cup is a reflecting surface, and the tail part of the transmission optical fiber penetrates into the arc-shaped reflecting cup and is positioned at the vertex in the reflecting surface. The arc-shaped reflecting cup is of a rotationally symmetrical curved surface structure, so that emergent rays can be reflected in a parallel manner to be emitted.
Through the technical scheme, compared with the prior art, the invention has the beneficial effects that:
the light required by the growth of plants with different wavelengths is subjected to beam combination shaping by the laser gratings outside the cavity based on the semiconductor laser to obtain a high-quality light beam, the coupled and shaped light beam is transmitted by the transmission optical fiber, and the tail part of the transmission optical fiber adopts the circular arc shape, so that the optical fiber can be emitted from the side surface. Therefore, the heat brought by the laser when the tail part is concentrated is reduced, the quality of the light beam is improved, and the stability of the whole system is improved. Finally, the laser is emitted from the side surface and then reflected by the arc-shaped reflecting cup, and parallel-like light beams are formed and are converged into the focusing lens and then are converged into the digital spectrometer through the focusing lens. The digital spectrometer distributes light of different wavelengths to plants in a desired ratio to accelerate the growth of the plants.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts;
fig. 1 is a flowchart of a laser lighting system applied to plant growth according to an embodiment of the present invention.
Fig. 2 is a structural diagram of a beam coupling shaping optical path provided in an embodiment of the present invention;
fig. 3 is an optical path diagram of a beam coupling shaping optical path provided by an embodiment of the present invention;
fig. 4 is a detailed structural block diagram of the digital spectrometer provided by the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment discloses a laser lighting system applied to plant growth, which belongs to an optical system and is mainly used for accelerating the plant growth.
Referring to fig. 1, a working flow chart of the laser illumination system for plant growth provided in this embodiment is shown, where the laser illumination system for plant growth in this embodiment includes a plurality of laser light sources with different wavelengths, a beam coupling shaping optical path, and a digital spectrometer, which are sequentially arranged along a propagation direction of an optical path; the light beam coupling shaping light path carries out grating beam combination shaping on the laser light sources with different wavelengths, and then the light with different wavelengths is distributed to plants in proportion through a digital spectrometer.
When the device is used, the laser is started to enable the laser to pass through the light beam coupling shaping system, and finally, the light passes through the digital spectrometer after passing through the light beam coupling shaping system, so that a user only needs to distribute the light to plants according to the requirements of the user through the light intensity adjusting switch and the display on the digital spectrometer.
In one embodiment, the laser light sources of different wavelengths are arrayed. A 405 nm-band GaAs semiconductor laser 1, a 375 nm-band GaAs semiconductor laser 2, and a 635 nm-band GaAs semiconductor laser 3 may be used.
Fig. 2 is a structural diagram of a beam coupling shaping optical path provided in the present embodiment.
In one embodiment, the beam coupling shaping optical path comprises a collimating mirror, a first focusing lens 5, a transmission grating 6, a transmission optical fiber 7, an arc-shaped reflecting cup 8 and a second focusing lens 9 which are sequentially arranged along the propagation direction of the optical path;
the number of the collimating lenses is multiple, and the output light path of each laser light source corresponds to one collimating lens;
the first focusing lens 5 focuses the collimated laser beam and makes the laser beam incident to the transmission grating 6;
the transmission grating 6 couples and shapes a plurality of lasers with different wavelengths, and the lasers are converged into the transmission optical fiber 7;
the arc-shaped reflecting cup 8 is processed by a process, a small hole with the same diameter as the transmission optical fiber 7 is drilled at the bottom of the arc-shaped reflecting cup 8, the transmission optical fiber 7 penetrates through the small hole to enter the inner arc surface of the arc-shaped reflecting cup 8, and the arc-shaped reflecting cup 8 reflects laser emitted from the tail of the transmission optical fiber 7 to form a parallel-like light beam which is converged into the focusing lens II 9;
the light focused by the second focusing lens 9 enters the digital spectrometer.
Fig. 3 is an optical path diagram of a beam coupling shaping optical path provided in the present embodiment.
And the collimating lens 4 is respectively arranged at the downstream side of each laser source, and the multiple rows of light beams output by the laser array are collimated by the collimating lens 4. Because the laser emitted by the semiconductor laser is directly related to the fast and slow axes thereof, it is necessary to correct the emitted laser by using the fast and slow axis collimating mirror, and the laser is nearly parallel after passing through the fast and slow axes.
A focusing lens 5 is disposed on the downstream side of the collimator lens 4, and the collimator lens 4 and the focusing lens 5 constitute a micro-optical lens group. In this embodiment, the focusing lens 5 may be a fourier focusing lens.
A transmission grating 6 is arranged at the downstream side of the focusing lens 5, passes through the transmission grating 6 after being focused by the Fourier lens and then is converged into a transmission fiber 7, and the transmission grating 6 is arranged for coupling and shaping light with three wavelengths.
On the downstream side of the transmission grating 6, a transmission fiber 7 is disposed, the core of which is treated by hot core expansion. The transmission optical fiber 7 is a quartz-clad multimode optical fiber, and the tail part of the optical fiber adopts an arc shape, so that light can be emitted from the tail part of the optical fiber more uniformly compared with a conical shape; the tail part of the optical fiber is frosted to treat the surface, so that light can be better and more uniformly emitted from the frosted side surface, the heat brought by laser when the tail part is concentrated is reduced, the quality of light beams is improved, and the stability of the whole system is improved.
An arc-shaped reflecting cup 8 is added at the tail part of the transmission optical fiber 7, the arc-shaped reflecting cup 8 is of a rotationally symmetrical curved surface structure, laser is emitted from the side surface and then reflected by the arc-shaped reflecting cup 8, parallel-like light beams are formed and are converged into a second focusing lens 9, and then are converged into a digital spectrometer through the second focusing lens 9. In this embodiment, the second focusing lens 9 may be a fourier focusing lens.
In this embodiment, the concave surface of the arc-shaped reflecting cup 8 is a reflecting surface, and no phosphor is required to be coated, and the tail portion of the transmission optical fiber 7 penetrates into the arc-shaped reflecting cup 8 and is located at the vertex in the reflecting surface. The arc-shaped reflecting cup 8 is of a rotationally symmetrical curved surface structure, so that emergent light rays can be emitted in a parallel-like reflection mode, and the purpose is to enable the emergent light rays to be better converged into digital light splitting. If the emergent light is not directly incident through the arc-shaped reflecting cup, unnecessary loss is inevitably caused due to scattering of the light.
Fig. 4 is a schematic diagram of a digital spectrometer provided by an embodiment of the present invention. The digital spectrometer comprises a modulation circuit and power supply 11, a base 12, an adjusting knob 13, a central rotating shaft 14, a telescope brake frame 15, a collimator support frame 16, a collimator 17, an optical parallel plate 18, an objective table 19, a telescope 20, a CCD camera 21 and a display 22.
The CCD camera 21 is installed on the ocular lens of the telescope 20, and the optical signal converged into the telescope 20 by the second focusing lens 9 is converted into an electric signal through a circuit and transmitted to the display 22. The telescope 20 is connected with the central rotating shaft 14 through a telescope brake frame 15, the objective table 19 is positioned at the top end of the central rotating shaft 14 and fixed through screws, and the collimator 17 is connected with the central rotating shaft 14 through a collimator support frame 16. The base 12 is a stable triangular structure and is connected with the central rotating shaft 14, and a modulation circuit is arranged in the base 12 so as to modulate the intensity of light. An adjusting knob 13 connected with the modulation circuit is arranged on the outer side of the bottom, and the requirement of a user on light proportion distribution is met through the adjusting knob 13.
The laser lighting system applied to plant growth provided by the present invention is described in detail above, and the principle and the embodiment of the present invention are explained in the present document by applying specific examples, and the description of the above examples is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A laser lighting system applied to plant growth is characterized by comprising a plurality of laser light sources with different wavelengths, a beam coupling shaping light path and a digital spectrometer, wherein the laser light sources, the beam coupling shaping light path and the digital spectrometer are sequentially arranged along the propagation direction of a light path;
the light beam coupling shaping light path carries out grating beam combination shaping on the laser light sources with different wavelengths, and then the light with different wavelengths is distributed to plants in proportion through a digital spectrometer.
2. The laser lighting system applied to plant growth as claimed in claim 1, wherein the beam coupling shaping optical path comprises a collimating mirror, a first focusing lens, a transmission grating, a transmission optical fiber, an arc-shaped reflecting cup and a second focusing lens which are arranged in sequence along the propagation direction of the optical path;
the number of the collimating lenses is multiple, and the output light path of each laser light source corresponds to one collimating lens;
the first focusing lens focuses the collimated laser beam and enables the collimated laser beam to be incident to the transmission grating;
the transmission grating is used for coupling and shaping a plurality of lasers with different wavelengths and converging the lasers into the transmission optical fiber;
the arc-shaped reflecting cup reflects the laser emitted by the tail part of the transmission optical fiber into a beam similar to parallel and converges into the focusing lens II;
and the light rays focused by the second focusing lens enter the digital spectrometer.
3. The laser lighting system applied to plant growth as claimed in claim 1, wherein the plurality of laser light sources with different wavelengths comprise a 405 nm-band GaAs semiconductor laser, a 375 nm-band GaAs semiconductor laser and a 635 nm-band GaAs semiconductor laser.
4. The laser lighting system for plant growth as claimed in claim 1, wherein the tail of the transmission fiber is in the shape of a circular arc, and the emergent light is uniformly emitted from the tail of the fiber.
5. The laser lighting system applied to plant growth as claimed in claim 2, wherein the concave surface of the arc-shaped reflecting cup is a reflecting surface, and the tail portion of the transmission optical fiber penetrates into the interior of the arc-shaped reflecting cup and is located at the vertex in the reflecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110320728.2A CN112879842A (en) | 2021-03-25 | 2021-03-25 | Laser lighting system applied to plant growth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110320728.2A CN112879842A (en) | 2021-03-25 | 2021-03-25 | Laser lighting system applied to plant growth |
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| CN112879842A true CN112879842A (en) | 2021-06-01 |
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| CN202110320728.2A Pending CN112879842A (en) | 2021-03-25 | 2021-03-25 | Laser lighting system applied to plant growth |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475260A (en) * | 2022-09-26 | 2022-12-16 | 深圳市隆兴达科技有限公司 | Red laser range indicating module for sterilization equipment |
| PL244490B1 (en) * | 2023-03-22 | 2024-01-29 | Healthcare Support Team Spolka Z Ograniczona Odpowiedzialnoscia | LED lamp with a two-stage color mixer for generating and transmitting light with a programmable color |
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| CN105633798A (en) * | 2016-03-09 | 2016-06-01 | 中国科学院长春光学精密机械与物理研究所 | Coherent beam combination system and method |
| CN106958746A (en) * | 2015-10-02 | 2017-07-18 | 三星电子株式会社 | White light emission module and LED illumination device |
| CN211060035U (en) * | 2019-12-02 | 2020-07-21 | 王琳镕 | Laser lighting system |
| CN214425791U (en) * | 2021-03-25 | 2021-10-19 | 海南师范大学 | A laser lighting system for plant growth |
-
2021
- 2021-03-25 CN CN202110320728.2A patent/CN112879842A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958746A (en) * | 2015-10-02 | 2017-07-18 | 三星电子株式会社 | White light emission module and LED illumination device |
| CN105633798A (en) * | 2016-03-09 | 2016-06-01 | 中国科学院长春光学精密机械与物理研究所 | Coherent beam combination system and method |
| CN211060035U (en) * | 2019-12-02 | 2020-07-21 | 王琳镕 | Laser lighting system |
| CN214425791U (en) * | 2021-03-25 | 2021-10-19 | 海南师范大学 | A laser lighting system for plant growth |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475260A (en) * | 2022-09-26 | 2022-12-16 | 深圳市隆兴达科技有限公司 | Red laser range indicating module for sterilization equipment |
| PL244490B1 (en) * | 2023-03-22 | 2024-01-29 | Healthcare Support Team Spolka Z Ograniczona Odpowiedzialnoscia | LED lamp with a two-stage color mixer for generating and transmitting light with a programmable color |
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