CN103644534B - A kind of reddish blue laser plant lamp - Google Patents
A kind of reddish blue laser plant lamp Download PDFInfo
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- CN103644534B CN103644534B CN201310699780.9A CN201310699780A CN103644534B CN 103644534 B CN103644534 B CN 103644534B CN 201310699780 A CN201310699780 A CN 201310699780A CN 103644534 B CN103644534 B CN 103644534B
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Abstract
The invention belongs to plant growth device technical field, relate to a kind of reddish blue laser plant lamp, laser gain crystal is fixedly connected with laser instrument, and laser pumping laser gain crystal produces laser generation; One end of laser gain crystal is placed with frequency-doubling crystal, and the other end is placed with sum of fundamental frequencies crystal; The output of frequency-doubling crystal is placed with the first laser cavity eyeglass, and the output of sum of fundamental frequencies crystal is placed with the second laser cavity eyeglass; First beam expander is placed on the output of the first laser cavity eyeglass; Second beam expander is placed on the output of the second laser cavity eyeglass; Its structure is simple, and illumination space is large, and scope is wide, simultaneously output red and blue laser, and spectral region is wide, exports energy large, efficient energy-saving, illumination range and luminous power size adjustable.
Description
Technical field:
The invention belongs to plant growth device technical field, relate to a kind of red, blue plant lamp of Promoting plant growth, particularly a kind of reddish blue laser plant lamp.
Background technology:
Plant the energy of sunshine will be relied on to carry out photosynthesis and grow, bloom, result, solar spectrum is continuous spectrum, contain all wavelengths of 400 ~ 760nm, the impact of light on photosynthesis of plant of different wave length is different, wherein the blue light of 400 ~ 520nm and 610 ~ 720nm red light maximum for photosynthesis contribution, the green light of 520 ~ 610nm, the ratio absorbed by phytochrome is very low.Research shows the spectral power distribution of ruddiness and blue light and Chlorophyll Absorption Spectrum is consistent, red, blue light combines the photosynthesis that greatly can promote plant, the g and D of raising plant.At present, there is not yet can the simultaneously open use of the laser plant lamp of output red and blue laser and relevant report.
Summary of the invention:
The object of the invention is to overcome the shortcoming that prior art exists, seek design and provide a kind of reddish blue plant laser lamp, simultaneously output red and blue laser, spectral region is wide, exports energy large, efficient energy-saving, illumination range and luminous power size adjustable.
To achieve these goals, agent structure of the present invention comprises the first laser cavity eyeglass, the second laser cavity eyeglass, laser gain crystal, laser instrument, frequency-doubling crystal, sum of fundamental frequencies crystal, the first beam expander and the second beam expander; Laser gain crystal is fixedly connected with laser instrument, laser pumping laser gain crystal, produces 1318nm ~ 1440nm laser generation; One end of laser gain crystal is placed with frequency-doubling crystal, and the other end is placed with sum of fundamental frequencies crystal; The output of frequency-doubling crystal is placed with the first laser cavity eyeglass, and the output of sum of fundamental frequencies crystal is placed with the second laser cavity eyeglass; Frequency-doubling crystal carries out frequency multiplication to the laser that laser gain crystal produces, and realizes the ruddiness of 609 ~ 720nm wave band; Sum of fundamental frequencies crystal carries out sum of fundamental frequencies to remaining near infrared light and ruddiness, realizes the blue light of 439 ~ 480nm wave band; First laser cavity eyeglass exports ruddiness, and the second laser cavity eyeglass exports blue light; First beam expander is placed on the output of the first laser cavity eyeglass, amplifies the ruddiness that the first laser cavity eyeglass exports; Second beam expander is placed on the output of the second laser cavity eyeglass, amplifies the blue light that the second laser cavity eyeglass exports, to expand illumination range; Distance between each parts is arranged according to actual needs.
The the first laser cavity eyeglass that the present invention relates to is the laser cavity eyeglass of HR1318nm ~ 1440nm & HT609 ~ 720nm plated film, second laser cavity eyeglass is the laser cavity eyeglass of HR1318nm ~ 1440nm & HT439 ~ 480nm plated film, laser gain crystal is neodymium-doped yttrium-aluminum garnet (Nd:YAG) laser gain crystal, laser instrument is semiconductor laser, optical fiber laser or all solid state laser, and the output wavelength of laser instrument is 808nm or 880nm; Frequency-doubling crystal is Quasi phase matched lithium columbate crystal (PPLN), level Xiang Pi Pei Tantalum acid crystalline lithium (PPLT) or Quasi phase matched KTP crystal (PPKTP) of chirp structure, and the frequency-doubled wavelength of frequency-doubling crystal is 1318nm ~ 1440nm; Sum of fundamental frequencies crystal be chirp structure Quasi phase matched lithium columbate crystal (PPLN), level Xiang Pi Pei Tantalum acid crystalline lithium (PPLT) and Quasi phase matched KTP crystal (PPKTP) in one, the sum of fundamental frequencies wavelength of sum of fundamental frequencies crystal is 1318nm ~ 1440nm & 609 ~ 720nm.
The laser instrument that the present invention relates to and beam expander or be arranged on head, can set up lens and reflector apparatus, the irradiation space of expansion of laser light bundle, controls the illumination range of laser beam.
The Red and blue light that the present invention relates to can export respectively from two laser cavity eyeglasses, also can export from a laser cavity eyeglass; Beam expander can apply fluorescent material, obtain the fluorescence of other wavelength.
Compared with prior art, its structure is simple in the present invention, and illumination space is large, and scope is wide, simultaneously output red and blue laser, and spectral region is wide, exports energy large, efficient energy-saving, illumination range and luminous power size adjustable.
Accompanying drawing illustrates:
Fig. 1 is agent structure principle schematic of the present invention.
Fig. 2 is the agent structure principle schematic of the embodiment of the present invention 1, comprising the first laser cavity eyeglass R1, the second laser cavity eyeglass R2, laser gain crystal A, laser instrument B, frequency-doubling crystal C, sum of fundamental frequencies crystal D, the first condenser lens L1, the second condenser lens L2, the 3rd condenser lens L3, the 4th condenser lens L4, the first convex reflecting mirror G and the second convex reflecting mirror H.
Detailed description of the invention:
Also be described further by reference to the accompanying drawings below by embodiment.
The agent structure of the present embodiment comprises the first laser cavity eyeglass R1, the second laser cavity eyeglass R2, laser gain crystal A, laser instrument B, frequency-doubling crystal C, sum of fundamental frequencies crystal D, the first beam expander M1 and the second beam expander M2; Laser gain crystal A is fixedly connected with laser instrument B, laser instrument B pumping laser gain crystal, produces 1318nm ~ 1440nm laser generation; One end of laser gain crystal A is placed with frequency-doubling crystal C, and the other end is placed with sum of fundamental frequencies crystal D; The output of frequency-doubling crystal C is placed with the first laser cavity eyeglass R1, and the output of sum of fundamental frequencies crystal D is placed with the second laser cavity eyeglass R2; Frequency-doubling crystal C carries out frequency multiplication to the laser that laser gain crystal A produces, and realizes the ruddiness of 609 ~ 720nm wave band; Sum of fundamental frequencies crystal D carries out sum of fundamental frequencies to remaining near infrared light and ruddiness, realizes the blue light of 439 ~ 480nm wave band; First laser cavity eyeglass R1 exports ruddiness, and the second laser cavity eyeglass R2 exports blue light; First beam expander M1 is placed on the output of the first laser cavity eyeglass R1, amplifies the ruddiness that the first laser cavity eyeglass R1 exports; Second beam expander M2 is placed on the output of the second laser cavity eyeglass R2, amplifies the blue light that the second laser cavity eyeglass R2 exports, to expand illumination range; Distance between each parts is arranged according to actual needs.
The first laser cavity eyeglass R1 that the present embodiment relates to is the laser cavity eyeglass of HR1318nm ~ 1440nm & HT609 ~ 720nm plated film, second laser cavity eyeglass R2 is the laser cavity eyeglass of HR1318nm ~ 1440nm & HT439 ~ 480nm plated film, laser gain crystal A is neodymium-doped yttrium-aluminum garnet (Nd:YAG) laser gain crystal, laser instrument B is semiconductor laser, optical fiber laser or all solid state laser, and the output wavelength of laser instrument B is 808nm or 880nm; Frequency-doubling crystal C is Quasi phase matched lithium columbate crystal (PPLN), level Xiang Pi Pei Tantalum acid crystalline lithium (PPLT) or Quasi phase matched KTP crystal (PPKTP) of chirp structure, and the frequency-doubled wavelength of frequency-doubling crystal C is 1318nm ~ 1440nm; Sum of fundamental frequencies crystal D be chirp structure Quasi phase matched lithium columbate crystal (PPLN), level Xiang Pi Pei Tantalum acid crystalline lithium (PPLT) and Quasi phase matched KTP crystal (PPKTP) in one, the sum of fundamental frequencies wavelength of sum of fundamental frequencies crystal D is 1318nm ~ 1440nm & 609 ~ 720nm.
The laser instrument that the present embodiment relates to and beam expander or be arranged on head, can set up lens and reflector apparatus, the irradiation space of expansion of laser light bundle, controls the illumination range of laser beam.
Embodiment 1:
The laser gain crystal A of the present embodiment adopts Nd:YAG module, laser instrument B adopts output wavelength to be the semiconductor laser of 880nm, first laser cavity eyeglass R1 is the plano-concave mirror of radius of curvature 200mm, and filming parameter is HR1318nm ~ 1440nm & HT609 ~ 720nm, second laser cavity eyeglass R2 is the plano-concave mirror of radius of curvature 300mm, filming parameter is HR1318nm ~ 1440nm & HT439 ~ 480nm, distance between first laser cavity eyeglass R1 and the second laser cavity eyeglass R2 is 400mm, frequency-doubling crystal C is PPLN, sum of fundamental frequencies crystal D is PPKTP, first condenser lens L1 and the equal L3 of the 3rd condenser lens is the condenser lens of focal length 30mm, second condenser lens L2 is the condenser lens of focal length 200mm, 4th condenser lens L4 is the condenser lens of 1000mm, distance between first condenser lens L1 and the second condenser lens L2 is 230mm, distance between 3rd condenser lens L3 and the 4th condenser lens L4 is 1030mm, the arranged outside of the second condenser lens L2 has the convex reflecting mirror G of plated film HR609 ~ 720nm, 4th condenser lens L4 arranged outside has the convex reflecting mirror H of plated film HR439 ~ 480nm, obtain the illumination range of nearly 180 degree.
The present embodiment, by regulating the pump power of laser instrument B, controls the power output of red blue laser, avoids intensity of illumination too high or very little; Regulate the angle of convex reflecting mirror G and H, illumination range that is red, blue laser can be regulated arbitrarily.
Claims (3)
1. a reddish blue laser plant lamp, is characterized in that agent structure comprises the first laser cavity eyeglass, the second laser cavity eyeglass, laser gain crystal, laser instrument, frequency-doubling crystal, sum of fundamental frequencies crystal, the first beam expander and the second beam expander; Laser gain crystal is fixedly connected with laser instrument, laser pumping laser gain crystal, produces 1318nm ~ 1440nm laser generation; One end of laser gain crystal is placed with frequency-doubling crystal, and the other end is placed with sum of fundamental frequencies crystal; The output of frequency-doubling crystal is placed with the first laser cavity eyeglass, and the output of sum of fundamental frequencies crystal is placed with the second laser cavity eyeglass; Frequency-doubling crystal carries out frequency multiplication to the laser that laser gain crystal produces, and realizes the ruddiness of 609 ~ 720nm wave band; Sum of fundamental frequencies crystal carries out sum of fundamental frequencies to remaining near infrared light and ruddiness, realizes the blue light of 439 ~ 480nm wave band; First laser cavity eyeglass exports ruddiness, and the second laser cavity eyeglass exports blue light; First beam expander is placed on the output of the first laser cavity eyeglass, amplifies the ruddiness that the first laser cavity eyeglass exports; Second beam expander is placed on the output of the second laser cavity eyeglass, amplifies the blue light that the second laser cavity eyeglass exports, to expand illumination range; First laser cavity eyeglass is the laser cavity eyeglass of HR1318nm ~ 1440nm & HT609 ~ 720nm plated film, second laser cavity eyeglass is the laser cavity eyeglass of HR1318nm ~ 1440nm & HT439 ~ 480nm plated film, laser gain crystal is nd yag doubled-frequency laser gain crystal, laser instrument is semiconductor laser, optical fiber laser or all solid state laser, and the output wavelength of laser instrument is 808nm or 880nm; Frequency-doubling crystal is Quasi phase matched lithium columbate crystal, the level Xiang Pi Pei Tantalum acid crystalline lithium or Quasi phase matched KTP crystal of chirp structure, and the frequency-doubled wavelength of frequency-doubling crystal is 1318nm ~ 1440nm; Sum of fundamental frequencies crystal be chirp structure Quasi phase matched lithium columbate crystal, level Xiang Pi Pei Tantalum acid crystalline lithium and Quasi phase matched KTP crystal in one, the sum of fundamental frequencies wavelength of sum of fundamental frequencies crystal is 1318nm ~ 1440nm & 609 ~ 720nm.
2. reddish blue laser plant lamp according to claim 1, it is characterized in that the laser instrument that relates to and beam expander or be arranged on the head of design in addition, the irradiation space of expansion of laser light bundle, controls the illumination range of laser beam.
3. reddish blue laser plant lamp according to claim 1, is characterized in that the Red and blue light related to exports respectively from two laser cavity eyeglasses, or exports from a laser cavity eyeglass; Beam expander applies fluorescent material, the fluorescence of other wavelength can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310699780.9A CN103644534B (en) | 2013-12-19 | 2013-12-19 | A kind of reddish blue laser plant lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310699780.9A CN103644534B (en) | 2013-12-19 | 2013-12-19 | A kind of reddish blue laser plant lamp |
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| CN103644534A CN103644534A (en) | 2014-03-19 |
| CN103644534B true CN103644534B (en) | 2016-03-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407647A (en) * | 2014-10-31 | 2015-03-11 | 中国农业大学 | Light supplement system and method for greenhouse |
| CN104737841A (en) * | 2015-03-05 | 2015-07-01 | 中国农业科学院农业环境与可持续发展研究所 | Plant-cultivating method after laser-beam divergence |
| CN108631148A (en) * | 2017-12-19 | 2018-10-09 | 嘉兴迪迈科技有限公司 | A kind of red and blue laser plant lamp |
| CN108386765A (en) * | 2018-04-12 | 2018-08-10 | 中国科学技术大学先进技术研究院 | A kind of packaged type laser light-supplementing system |
| CN110771379A (en) * | 2019-11-19 | 2020-02-11 | 温州大学新材料与产业技术研究院 | Laser plant lamp capable of irradiating 180-degree overall and application method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6613042B1 (en) * | 2000-06-30 | 2003-09-02 | Nikolai Tankovich | Rainbow laser |
| CN101533989A (en) * | 2009-04-21 | 2009-09-16 | 厦门大学 | Laser diode pumping red green blue full-solid laser |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9207377B2 (en) * | 2012-01-20 | 2015-12-08 | Matthew Overturf | Artificial lighting system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6613042B1 (en) * | 2000-06-30 | 2003-09-02 | Nikolai Tankovich | Rainbow laser |
| CN101533989A (en) * | 2009-04-21 | 2009-09-16 | 厦门大学 | Laser diode pumping red green blue full-solid laser |
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