CN101566303B - 照明装置 - Google Patents

照明装置 Download PDF

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CN101566303B
CN101566303B CN2008103012683A CN200810301268A CN101566303B CN 101566303 B CN101566303 B CN 101566303B CN 2008103012683 A CN2008103012683 A CN 2008103012683A CN 200810301268 A CN200810301268 A CN 200810301268A CN 101566303 B CN101566303 B CN 101566303B
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substrate
lighting device
solar cell
solid state
state light
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CN101566303A (zh
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赖志铭
曹治中
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Foxsemicon Integrated Technology Shanghai Inc
Foxsemicon Integrated Technology Inc
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Foxsemicon Integrated Technology Shanghai Inc
Foxsemicon Integrated Technology Inc
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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
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
    • F21S9/037—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit and the lighting unit being located within or on the same housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
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    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/20—Supporting structures directly fixed to an immovable object
    • H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
    • H02S20/26—Building materials integrated with PV modules, e.g. façade elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
    • F21Y2115/10—Light-emitting diodes [LED]
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    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract

本发明涉及一种照明装置，包括一个可透光基板，该基板包括一个底面、与该底面相交的至少一个入光面及与该底面相对的一个出光面；多个固态光源，其相对该基板的至少一个入光面设置，该多个固态光源发射的光线由该至少一个入光面入射至该基板后从该基板的出光面出射；以及至少一个太阳能电池，其相对该基板的底面设置，用于吸收太阳光并将太阳光能转化为电能，以提供电源至该多个固态光源。本发明的照明装置既可提供照明又可提供建筑物采光。

Description

照明装置
技术领域
本发明涉及一种照明装置，尤其涉及一种采用发光二极管作为发光元件的照明装置。
背景技术
目前，发光二极管(Light emitting Diode，LED)因具体积小，效率高，寿命长等优点而逐渐取代现有的荧光灯或白炽灯作为照明装置的发光元件，以节省电能，减少资源的浪费。具体可参阅Michael S.Shur等人在文献Proceedings of the IEEE，Vol.93，No.10(2005年10月)中发表的“Solid-State Lighting：Toward Superior Illumination”一文。
另一方面，随着当今世界能源问题日趋紧张，太阳光能作为一种清洁卫生且取之不尽的能源受到越来越多的关注，将太阳光能转化为人们可以使用的能源，如电能在现有技术中通常是通过太阳能电池来实现的。
考虑到以上因素，将照明装置与太阳能电池相结合，利用太阳能电池转化太阳光能后所获取的电能来驱动照明装置发光，正成为当今科技界的一大课题。
然而，在现有技术中，将照明装置，如发光二极管与太阳能电池相结合的制程往往较为复杂，且照明装置与太阳能电池相结合后作为一个整体，其只能应用于照明，而无法兼具其它方面的功用，如建筑物的采光等。
有鉴于此，本发明提供一种照明装置，其既可提供照明又可提供建筑物采光。
发明内容
下面将以实施例说明一种既可提供照明又可提供建筑物采光的照明装置。
一种照明装置，包括一个可透光基板，该基板包括一个底面、与该底面相交的至少一个入光面及与该底面相对的一个出光面；多个固态光源，其相对该基板的至少一个入光面设置，该多个固态光源发射的光线由该至少一个入光面入射至该基板后从该基板的出光面出射；以及至少一个太阳能电池，其相对该基板的底面设置，用于吸收太阳光并将太阳光能转化为电能，以提供电源至该多个固态光源。
相对于现有技术，该照明装置通过设置一个可透光基板，以及在该可透光基板的底面上设置一个太阳能电池，一方面，该太阳能电池可将太阳光能转化为电能并对固态光源供电，从而利用固态光源进行照明而节约能源；另一方面，由于该基板可透光，因此该照明装置可让部分的太阳光直接透过，以在白天时提供建筑物采光。
附图说明
图1是本发明第一实施例提供的照明装置的结构示意图。
图2是本发明第二实施例提供的照明装置的结构示意图。
图3是本发明第三实施例提供的照明装置的结构示意图。
图4是本发明第四实施例提供的照明装置的剖面示意图。
具体实施方式
下面将结合附图，以对本发明实施例作进一步的详细说明。
请参阅图1，本发明第一实施例提供的一种照明装置10，包括一个可透光基板11，多个固态光源13及一个太阳能电池15。
该基板11可为一个长方形结构，其包括一个底面110、与该底面110相交的至少一个入光面112，以及与该底面110相对的一个出光面114。在本实施例中，该长方形结构具有四个入光面112。该基板11可透光，其可为一个玻璃基板。当然，该基板11也可采用其它透明的塑料，如选用PMMA(Polymethylmethacrylate，聚甲基丙烯酸甲酯)、PC(Poly Carbonate，聚碳酸脂)、硅树脂(silicone)等制成。
该多个固态光源13与该基板11光学耦合，其可具体为多个发光二极管。在本实施例中，该多个发光二极管相对基板11的每个入光面112设置，其所发出的光线经该入光面112入射至基板11后，由该基板11对其进行光学引导，如透射及反射等，使其从基板11的出光面114出射。本领域技术人员可以理解的是，该照明装置10的四个入光面112上可分别设置一个电路板，该多个固态光源13设置在该电路板上。
该太阳能电池15设置在该基板11的底面110上。具体地，该基板11的底面110可通过半导体制程形成多个透明导电薄膜116，如多个ITO(铟锡氧化物)层或多个IZO(铟锌氧化物)层。该太阳能电池15通过该多个透明导电薄膜116与该基板11相连接。进一步地，该照明装置10可包括一个蓄电装置(图未示)，如一个蓄电池，该多个透明导电薄膜116可作为该太阳能电池15的电极，以通过其电连接该蓄电装置与该太阳能电池15。当太阳能电池15受太阳光照射，并将太阳光能转化为电能时，可通过该蓄电装置将电能储存在其内。当然，该蓄电装置可进一步与该电路板电性连接，从而使该多个固态光源13、太阳能电池15及蓄电装置三者形成电性相连，以利用该蓄电装置对该多个固态光源13供电。
该太阳能电池15可具有一定的光透过率，其可具体为基板硅晶(Silicon-based)太阳能电池(单晶硅，多晶硅，非晶硅)，或者为III V族半导体材料(AlAs、InAs、InP、GaP、GaAs、GaN或其化合物)所制成的太阳能电池，又或者为铜铟硒/铜铟硒镓(CIGS/CIS)、碲化镉(CdTe)材料，有机材料或光敏感染料物质所制成的太阳能电池(dye-sensitized solarcell，DSSC)，且该太阳能电池15的厚度小于300微米(μm)，即该太阳能电池15为一个薄膜太阳能电池(thin film solar cell)。
该多个固态光源13及该太阳能电池15上可形成一个保护层(图未示)，如一个树脂层或一个防水薄膜层，以对其起保护作用，如防水防尘等。使用时，该照明装置10可设置为办公楼的窗户玻璃，该基板11的底面110面向室外设置，以利用该太阳能电池15吸收太阳光并将太阳光能转化为电能，该基板11的出光面114面向室内设置。一方面，在白天，由于该基板11及该太阳能电池15均可透光，因此该照明装置10可让部分的太阳光直接透射过该太阳能电池15及该基板11，以提供建筑物采光，从而使室内保持一定的亮度。当然，该太阳能电池15在白天时可以开启，以将照射至太阳能电池15，并被该太阳能电池15所吸收的太阳光转化为电能并储存在该蓄电装置内；另一方面，当夜晚来临，该太阳能电池15未接受到太阳光照时，可利用该蓄电装置所储存的电能对该多个固态光源13供电。可以理解的是，当该太阳能电池15对该多个固态光源13供电时，该多个固态光源13发出的光由该基板11的出光面114出射，从而对室内起照明作用。
为了使多个固态光源13发出的光由该基板11的出光面114出射时，其出光均匀，可在该出光面114上形成多个微结构以使其成为一个粗糙表面，且该微结构具体可为V形槽(V-cut)或是印刷网点。
请参阅图2，本发明第二实施例提供的一种照明装置30，其与本发明第一实施例提供的照明装置10基本相同，差别仅在于：至少一个太阳能电池35的数目为多个，且该多个太阳能电池35间隔排布并设置在多个透明导电薄膜316上；另外，该基板31的出光面314形成一个增亮膜(Bright Enhancement Film，BEF)，该基板31的四个入光面312还开设多个收容槽3120以对应容纳多个固态光源33，从而使照明装置10的体积进一步小型化。
本领域技术人员可以理解的是，该多个太阳能电池35之间的间隔可以增加透射过基板31的太阳光量，其可增强太阳光的光透过率，该基板31的出光面314上所形成的增亮膜可以增加透射过基板31的太阳光量，因此，相对第一实施例中的照明装置10，本实施例所提供的照明装置30可进一步增加白天室内的亮度。另外，在本实施例中，由于该多个太阳能电池35间隔排布，该基板31的底面310具有裸露于外界的区域，太阳光可直接照射在该区域上并透射过基板31，因此，该太阳能电池35也可设置为一个不透光的太阳能电池35，其并不影响到本发明的实施。
请参阅图3，本发明第三实施例提供的一种照明装置50，与本发明第二实施例提供的照明装置30相比，其差异在于：该照明装置50的基板51的面积较大，且该基板51出光面514上对应于太阳能电池55之间的间隔处开设多个凹槽518，进一步地，相对该多个凹槽518的入光面5180设置多个固态光源53。
当然，该多个凹槽518的入光面5180也可以开设多个收容槽以对应容纳该多个固态光源53。
通常，当该基板51的面积较大时，仅靠相对四个入光面512设置的多个固态光源53发出的光线，其难以使由基板51的出光面514出射的光均匀化，在本实施例中，通过开设该多个凹槽518并对应设置多个固态光源53，可使得包含有较大面积基板51的照明装置50具备较佳的出光均匀度。
请参阅图4，本发明第四实施例提供的一种照明装置70，其与本发明第一实施例提供的照明装置10基本相同，差别仅在于：该至少一个太阳能电池75为多个微型硅球。
照射至该多个微型硅球上的太阳光(如图4中虚箭头所示)可被该多个微型硅球吸收并转化为电能，而照射至该多个微型硅球之间间隔的太阳光(如图4中实箭头所示)则可进一步透射过基板71，以在白天时提供建筑物采光。相较于本发明第一实施例所提供的太阳能电池15，采用该多个微型硅球所制成的太阳能电池75可允许更多的太阳光透射过基板71，从而增强白天室内的亮度。
可以理解的是，对于本领域的普通技术人员来说，可以根据本发明的技术构思做出其它各种对应的改变与变形，而所有这些改变与变形都应属于本发明权利要求的保护范围。

Claims (8)

1.一种照明装置，包括：
一个可透光基板，该基板包括一个底面、与该底面相对的一个出光面及至少一个入光面，该基板的出光面上开设多个凹槽，所述基板的至少一个入光面设置在这些凹槽内的侧壁上；
多个固态光源，其相对该基板的至少一个入光面设置，该多个固态光源发射的光线由该至少一个入光面入射至该基板后从该基板的出光面出射；以及
多个太阳能电池，其相对该基板的底面设置，用于吸收太阳光并将太阳光能转化为电能，以提供电源至该多个固态光源，所述多个太阳能电池相互间隔设置，所述基板的出光面的凹槽对应于太阳能电池之间的间隔处。
2.如权利要求1所述的照明装置，其特征在于，该多个固态光源为多个发光二极管。
3.如权利要求1所述的照明装置，其特征在于，该基板包括开设于至少一个入光面上的至少一个收容槽，该至少一个收容槽用于容纳该多个固态光源。
4.如权利要求1所述的照明装置，其特征在于，每一太阳能电池为一个薄膜太阳能电池，其厚度小于300微米。
5.如权利要求1所述的照明装置，其特征在于，每一太阳能电池的材料包含硅、III-V族半导体材料、铜铟硒、铜铟硒镓、碲化镉材料、有机材料或光敏感染料物质。
6.如权利要求1所述的照明装置，其特征在于，该基板为一个玻璃基板。
7.如权利要求1所述的照明装置，其特征在于，该基板的底面上形成至少一个透明导电薄膜，所述太阳能电池设置在该至少一个透明导电薄膜上。
8.如权利要求7所述的照明装置，其特征在于，每一太阳能电池为一个可透光的太阳能电池。
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