CN108916675A - A kind of side entering type plant light source of no light guide plate - Google Patents

A kind of side entering type plant light source of no light guide plate Download PDF

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Publication number
CN108916675A
CN108916675A CN201810990249.XA CN201810990249A CN108916675A CN 108916675 A CN108916675 A CN 108916675A CN 201810990249 A CN201810990249 A CN 201810990249A CN 108916675 A CN108916675 A CN 108916675A
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CN
China
Prior art keywords
light
guide plate
type plant
light source
entering type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810990249.XA
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Chinese (zh)
Inventor
文尚胜
靳肖林
付萌
李剑贤
王洒洒
蔡明兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South China University of Technology SCUT
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South China University of Technology SCUT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN201810990249.XA priority Critical patent/CN108916675A/en
Publication of CN108916675A publication Critical patent/CN108916675A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00Botany in general
    • A01G7/04Electric or magnetic or acoustic treatment of plants for promoting growth
    • A01G7/045Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14Measures for saving energy, e.g. in green houses

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Planar Illumination Modules (AREA)

Abstract

A kind of side entering type plant light source of no light guide plate, including shell, diffuser plate, combination reflective structure, LED light, unrestrained light reflecting board, diffuser plate is mounted at the lower ending opening of shell, unrestrained light reflecting board is installed on the top in shell, combination reflective structure is installed on the both ends in shell, LED light is installed on the bottom of combination reflective structure, and combination reflective structure is composite parabolic reflector.The present invention has many advantages, such as that emergent light is uniformly mixed and light efficiency height, brightness are high.The invention belongs to plant light sources technical fields.

Description

A kind of side entering type plant light source of no light guide plate
Technical field
The invention belongs to plant light sources technical field more particularly to a kind of side entering type plant light sources of no light guide plate.
Background technique
The rise for being increasingly reduced to plant factor of population sharply increased with cultivated area provides condition, plant factor The production system for the Sustainable Development of Modern Agriculture made using high-tech, by control environment for example temperature, humidity, illumination, The proportion of inorganic matter and organic matter provides necessary condition for plant growth, to reach shortening plant growing cycle, improves The purpose of production efficiency is the direction of the future of agriculture development.Light environment is one of key element of plant growth, can be direct Plant growth and development process and chemical substance accumulation are influenced, in addition, illumination is also all the more extensive in the application of plant fresh-keeping aspect, this makes Obtaining plant illumination becomes one of research hotspot, correspondingly, the plant illumination light source of exploitation function admirable is particularly important.LED As the third generation lighting source that recent years rises, there are three advantages on plant illumination.First, plant carries out photosynthetic work It is mainly that the blood orange light that wavelength is 610-720nm and the blue violet light that wavelength is 400-510nm, LED can be sent out with the light of absorption Monochromatic light spectrum required for plant out;Second, LED light spectrum has adjustability, can be according to different plants in different growth steps Demand of the section to light, adjusts the light quality ratio of LED, obtains complex spectrum, realizes precisely to light;Third, LED is small in size, energy conservation, light Electrotransformation is high-efficient, can improve space utilization rate with compact arrangement.
Had already appeared a plurality of types of LED plant light sources in the market, but existing LED plant lamp have it is certain Red blue lamp pearl is carried out simple array arrangement as in plant illumination lamps and lanterns by defect, but without carrying out secondary optical design, Since light does not have enough distances to be coupled, low illumination uniformity will lead to short distance area of illumination and red blue light spot occurs, lead Cause the growth luminous environment with a batch of plant different, the growth cycle and quality of plant just have larger difference.In order to enable Illumination uniformity is more preferable, and light guide plate can be added in side entering type plant light source in lamps and lanterns, to keep light multiple inside light guide plate The purpose of uniform in light emission is reflected up to, however the light guide plate in the more uniform lamps and lanterns of illumination is often more thick and heavy, and due to Light is absorbed in light guide plate, causes light extraction efficiency low, and lamps and lanterns are more heavy, and cost is high.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of side entering type plant light source of high no light guide plate of light extraction efficiency, it is also Feel has the advantages that simple structure, lightweight, brightness height, uniform in light emission.
A kind of side entering type plant light source of no light guide plate, including shell, diffuser plate, combination reflective structure, LED light, unrestrained light Reflecting plate, diffuser plate are mounted at the lower ending opening of shell, and unrestrained light reflecting board is installed on the top in shell, combine reflective structure The both ends in shell are installed on, LED light is installed on the bottom of combination reflective structure, and combination reflective structure is that composite parabolic is reflective Cup.Using this structure, after the light of LED light transmitting carries out the scattering of multi-angle by composite parabolic reflector, reflected light graze To diffuser plate to project lamps and lanterns, only sub-fraction reflexes to unrestrained light reflecting board and is absorbed by unrestrained light reflecting board, therefore big portion Graze is divided to diffuser plate, so that emergent light is uniformly mixed, and light efficiency is high, brightness is high.
Preferably, combination reflective structure further includes reflector, reflector in a tubular form, the diameter and composite parabolic of reflector The diameter of the opening of reflector is identical.Using this structure, since the pipeline of reflection lengthens, the distance of reflection is lengthened, low-angle Light is also reflected onto diffuser plate, therefore less light reflexes to unrestrained light reflecting board, and more light reflex to diffuser plate, thus light Effect is higher, brightness is higher.
Preferably, reflective structure is combined Open Side Down inclination.Using this structure, tilted since Open Side Down, it is originally anti- The light reflective structure that is combined for being incident upon unrestrained light reflecting board blocks, and less light reflexes to unrestrained light reflecting board, and more light reflex to Diffuser plate, so that light efficiency is higher, brightness is higher.
Preferably, the upper and lower surface of diffuser plate all has several continuous prisms, and the bottom edge side length of the prism of upper surface The bottom edge side length of the prism of lower surface is small, and the height of the prism of the upper and lower surfaces of diffuser plate is consistent.Using this structure, avoid Serious Fresnel reflection phenomenon is generated due to graze, promotes light emission effect, light efficiency, brightness.
Preferably, prism is regular triangular prism.Using this structure, the light reflection of graze to diffuser plate is less, and emergent light is more, Light efficiency is high.
Preferably, diffuser plate is made of PMMA material.Using this structure, material is light, heat-resisting durable.
Preferably, LED light includes red LED lamp and blue LED lamp, red LED lamp and blue LED lamp cross arrangement, and The distance between adjacent two lamp is identical.Using this structure, red blue-light source cross-distribution be conducive to light be superimposed on light-emitting surface it is mixed It closes, makes lamps and lanterns light-out effect more evenly.
Preferably, unrestrained light reflecting board includes plate body and diffusive reflective film, and diffusive reflective film is pasted on plate body inner wall.Using this knot Structure, production is simple, and diffusing reflection effect is good.
Beneficial effects of the present invention:The present invention by the way that LED light is installed on composite parabolic reflector, LED light transmitting After light carries out the scattering of multi-angle by composite parabolic reflector, reflected light graze to diffuser plate to project lamps and lanterns, and The reflector of composite parabolic reflector side adapter tube shape, and then script sub-fraction can be made to reflex to the small of unrestrained light reflecting board Also graze is to diffuser plate for angular light, therefore most light grazes arrive diffuser plate, so that emergent light mixes more evenly, and light efficiency High, brightness height;The upper and lower surface of diffuser plate in the present invention all has several continuous prisms, therefore is avoided that due to graze And serious Fresnel reflection phenomenon is generated, to promote light emission effect, light efficiency, brightness;LED light includes in the present invention Red LED lamp and blue LED lamp, red LED lamp and blue LED lamp cross arrangement, and the distance between adjacent two lamp is identical, by Be conducive to light in red blue-light source cross-distribution and be superimposed mixing on light-emitting surface, therefore makes lamps and lanterns light-out effect more evenly.
Detailed description of the invention
Fig. 1 is a kind of diagrammatic cross-section of the side entering type plant light source of no light guide plate.
Fig. 2 is the Rankine-Hugoniot relations schematic diagram of LED light of the present invention.
Fig. 3 is the structural schematic diagram of compound parabolic reflector.
Fig. 4 is the structural schematic diagram of reflector.
Fig. 5 is the diagrammatic cross-section for combining reflective structure.
Fig. 6 is LED light, combined reflected structure, unrestrained light reflecting board, the location diagram between diffuser plate.
Fig. 7 is the sectional view of diffuser plate.
Wherein, 1 is LED light, and 2 be combination reflective structure, and 3 be diffuser plate, and 4 be unrestrained light reflecting board, and 5 be shell, and 6 be simulation Light mixing light, 7 be compound parabolic reflector, 8 be reflector, and 9 be red LED lamp, and 10 be blue LED lamp.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawing.
For sake of convenience, now hereafter described orientation is described as follows:Hereafter described up and down direction and Fig. 1's itself is upper Lower direction is consistent.
As shown in Figure 1 and Figure 2, be a kind of no light guide plate of the invention side entering type plant light source, including shell, diffuser plate, Reflective structure, LED light, unrestrained light reflecting board are combined, diffuser plate is mounted at the lower ending opening of shell, and diffuser plate is light-emitting surface, is overflow Light reflecting board is installed on the top in shell, and combination reflective structure is installed on the both ends in shell, and it is reflective that LED light is installed on combination The bottom of structure.Reflector is combined into tubular reflector and combines reflective structure.
Fig. 1 is a kind of diagrammatic cross-section of the side entering type plant light source of no light guide plate, and global shape is approximately rectangle, and Show the composition of each component and the light mixing light of simulation.
Fig. 2 is the structural schematic diagram of LED light arrangement, and LED light is placed on the bottom of combination reflective structure.Such as Fig. 2, rectangle generation Table red LED lamp, circle represent blue LED lamp, and red and blue LED lamp is distributed in the left and right sides of lamps and lanterns, and intersect row at equal intervals Cloth, red and blue LED lamp cross-distribution are conducive to light and are superimposed mixing on light-emitting surface, make lamps and lanterns light-out effect more evenly.
Fig. 3 is composite parabolic reflector (cpc).Fig. 4 is reflector in a tubular form, the opening of composite parabolic reflector The diameter at place and the diameter of reflector are consistent, and reflector is connected to reflecting cup-shaped become of composite parabolic and combines reflective structure, to light Line is reflected, and is added after tubular reflector, and the combinations of reflections structure of double reflection can reflect LED light low-angle light, Long narrow emergent light is obtained, and then obtains bigger graze hot spot.
Fig. 5 is the sectional view of composite parabolic reflector Yu reflector combination structure, the divergent beams that LED light issues, warp Composite parabolic reflector is assembled and graze slackens Fresnel reflection effect on light-emitting surface plate, then by two-sided prism-shaped diffuser plate Project lamps and lanterns.
Fig. 6 is LED light, combines reflective structure, overflows the location diagram between light reflecting board, diffuser plate, combines reflective knot Structure and unrestrained light reflecting board, diffuser plate are not to arrange in horizontal layer, and the opening of reflective composite structure slopes slightly downward, and are tilted Angle will be adjusted according to lamps and lanterns specific size.
Fig. 7 is the sectional view of diffuser plate, if light and light-emitting surface angle are too small, serious luxuriant and rich with fragrance alunite can be generated in outgoing You reflection, in order to avoid generating serious Fresnel reflection phenomenon due to graze, using the diffuser plate with two-sided prism as Light-emitting surface plate.In the present embodiment, the prism of the upper and lower surface of diffuser plate is triangular prism, and the prism of the lower surface of diffuser plate Triangle base be greater than diffuser plate upper surface prism triangle base, the height of the prism of the upper and lower surfaces of diffuser plate Degree is consistent, it is possible to reduce above-mentioned phenomenon improves light extraction efficiency.
The diffusing reflection area of unrestrained light reflecting board can be made by a variety of methods, directly be sticked on plate body inner wall in the present embodiment One layer of diffusive reflective film.Various optical designs can also directly be processed by integration when making plate body.
Diffuser plate preferentially uses PMMA material, and processing method is not limited to traditional injection molding technique.
Above-described embodiment is to invent preferable embodiment, but embodiments of the present invention are not by the limit of above-described embodiment System, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention, It should be equivalent substitute mode, be included within the scope of the present invention.

Claims (8)

1. a kind of side entering type plant light source of no light guide plate, it is characterised in that:Including shell, diffuser plate, combination reflective structure, LED light, unrestrained light reflecting board, diffuser plate are mounted at the lower ending opening of shell, and unrestrained light reflecting board is installed on the top in shell, group It closes reflective structure and is installed on the both ends in shell, LED light is installed on the bottom of combination reflective structure, and combination reflective structure is compound Paraboloid reflecting cup.
2. the side entering type plant light source of a kind of no light guide plate according to claim 1, it is characterised in that:Combine reflective structure also Including reflector, in a tubular form, the diameter of reflector is identical with the diameter of the opening of composite parabolic reflector for reflector.
3. the side entering type plant light source of a kind of no light guide plate according to claim 1, it is characterised in that:Combine reflective structure Inclination that Open Side Down.
4. the side entering type plant light source of a kind of no light guide plate according to claim 1, it is characterised in that:The upper following table of diffuser plate Face all has several continuous prisms, and the bottom edge side length of the prism of the bottom edge side length lower surface of the prism of upper surface is small, expands The height of the prism of the upper and lower surfaces to fall apart is consistent.
5. the side entering type plant light source of a kind of no light guide plate according to claim 4, it is characterised in that:Prism is positive trigone Column.
6. the side entering type plant light source of a kind of no light guide plate according to claim 1, it is characterised in that:Diffuser plate uses PMMA Material is made.
7. the side entering type plant light source of a kind of no light guide plate according to claim 1, it is characterised in that:LED light includes red LED light and blue LED lamp, red LED lamp and blue LED lamp cross arrangement, and the distance between adjacent two lamp is identical.
8. the side entering type plant light source of a kind of no light guide plate according to claim 1, it is characterised in that:Unrestrained light reflecting board includes Plate body and diffusive reflective film, diffusive reflective film are pasted on plate body inner wall.
CN201810990249.XA 2018-08-28 2018-08-28 A kind of side entering type plant light source of no light guide plate Pending CN108916675A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110030505A (en) * 2019-03-22 2019-07-19 厦门立达信照明有限公司 A kind of mask lamp of light guiding lens and lampshade brightness uniformity
CN110242872A (en) * 2019-07-08 2019-09-17 江苏悠享颐生健康科技有限公司 A kind of simulating sun electro-optical device and desk lamp based on the mixing of multiple LED monochromatic light
CN110432024A (en) * 2019-07-22 2019-11-12 华南理工大学 It is a kind of with condenser without light guide plate side entering type RGB COB light source device

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CN202048503U (en) * 2011-03-08 2011-11-23 广东泰德科技有限公司 LED (Light-Emitting Diode) backlight module diffusion board
CN103148450A (en) * 2013-03-27 2013-06-12 梅州江南电器有限公司 Optical diffusion plate for LED (Light Emitting Diode) lamp
CN203517397U (en) * 2013-09-29 2014-04-02 华侨大学 Side face back projection type LED panel light
CN204717597U (en) * 2015-06-29 2015-10-21 合肥京东方显示光源有限公司 A kind of diffuser plate, direct-light-type backlight module and display unit
CN105605499A (en) * 2014-11-24 2016-05-25 欧普照明股份有限公司 Multi-combination down lamp
CN106545788A (en) * 2016-11-24 2017-03-29 合肥昂宇光电科技有限公司 A kind of high evenness light quality is than adjustable plant growth lamp
CN206310258U (en) * 2016-12-29 2017-07-07 深圳市光屋照明有限公司 A kind of LED plant lamps with efficient luminous intensity distribution performance
CN106949406A (en) * 2017-04-28 2017-07-14 华南理工大学 A kind of LED plant growth lamp
CN207005820U (en) * 2017-07-26 2018-02-13 慈溪飞诺斯电子科技有限公司 A kind of imitative solar irradiation LED plant lamps
CN208719872U (en) * 2018-08-28 2019-04-09 华南理工大学 A kind of side entering type plant light source of no light guide plate

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101487908A (en) * 2008-01-15 2009-07-22 日本瑞翁株式会社 Light diffusing plate, direct-type backlight device and liquid crystal display system
CN202048503U (en) * 2011-03-08 2011-11-23 广东泰德科技有限公司 LED (Light-Emitting Diode) backlight module diffusion board
CN103148450A (en) * 2013-03-27 2013-06-12 梅州江南电器有限公司 Optical diffusion plate for LED (Light Emitting Diode) lamp
CN203517397U (en) * 2013-09-29 2014-04-02 华侨大学 Side face back projection type LED panel light
CN105605499A (en) * 2014-11-24 2016-05-25 欧普照明股份有限公司 Multi-combination down lamp
CN204717597U (en) * 2015-06-29 2015-10-21 合肥京东方显示光源有限公司 A kind of diffuser plate, direct-light-type backlight module and display unit
CN106545788A (en) * 2016-11-24 2017-03-29 合肥昂宇光电科技有限公司 A kind of high evenness light quality is than adjustable plant growth lamp
CN206310258U (en) * 2016-12-29 2017-07-07 深圳市光屋照明有限公司 A kind of LED plant lamps with efficient luminous intensity distribution performance
CN106949406A (en) * 2017-04-28 2017-07-14 华南理工大学 A kind of LED plant growth lamp
CN207005820U (en) * 2017-07-26 2018-02-13 慈溪飞诺斯电子科技有限公司 A kind of imitative solar irradiation LED plant lamps
CN208719872U (en) * 2018-08-28 2019-04-09 华南理工大学 A kind of side entering type plant light source of no light guide plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110030505A (en) * 2019-03-22 2019-07-19 厦门立达信照明有限公司 A kind of mask lamp of light guiding lens and lampshade brightness uniformity
CN110030505B (en) * 2019-03-22 2021-03-23 厦门立达信照明有限公司 Light guide lens and mask lamp with uniform brightness of lampshade
CN110242872A (en) * 2019-07-08 2019-09-17 江苏悠享颐生健康科技有限公司 A kind of simulating sun electro-optical device and desk lamp based on the mixing of multiple LED monochromatic light
CN110432024A (en) * 2019-07-22 2019-11-12 华南理工大学 It is a kind of with condenser without light guide plate side entering type RGB COB light source device

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Application publication date: 20181130

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