CN1130536C - 照明*** - Google Patents

照明*** Download PDF

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CN1130536C
CN1130536C CN97198522A CN97198522A CN1130536C CN 1130536 C CN1130536 C CN 1130536C CN 97198522 A CN97198522 A CN 97198522A CN 97198522 A CN97198522 A CN 97198522A CN 1130536 C CN1130536 C CN 1130536C
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refrigerator
marginal ray
plate
light source
ray plate
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CN1232537A (zh
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安东尼·保斯弗里德
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Inois Acrylic Acid British PLC
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Lucite International UK Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00—Lighting arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/305—Lighting for domestic or personal use for refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2325/00—Charging, supporting or discharging the articles to be cooled, not provided for in other groups of this subclass
    • F25D2325/022—Shelves made of glass or ceramic
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/007—Incandescent lamp or gas discharge lamp
    • G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cultivation Of Seaweed (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Planar Illumination Modules (AREA)
  • Lasers (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

一种内部能够被照明的冰箱，其中照明是由基本透明的材料的边光板提供的，边光板的两个相对的表面中的至少一个处于冰箱内，其上施加点阵以产生向冰箱内的传光效果。

Description

照明***
本发明涉及照明***，具体来说，这种***用于家用冰箱中。
传统的家用冰箱是用单一光源照明的，通常使用装在透明或半透明亮体中，位于冰箱一个内侧面上的传统白炽灯泡。这种光源在打开冰箱门时通过适当的电-机械开关开启。这种光源往往由于其在冰箱中的位置及灯泡瓦数不高而照明情况不佳。通过增加光源数目会降低冰箱性能并增加其成本。另外，冰箱内光源数目的这种增加也会增加消耗的总热能。这种热耗的增加在冰箱中产生不理想的温升，这必须通过增加冰箱效果来补偿。当使用瓦数较高的更强单一光源以代替增加光源数目时也会发生相同的情况。另外，由于从多个光源或较强的一个光源散发的热量，家用冰箱的连续照明，例如，冰箱装有可见到内容物的透明门的情况，也是不理想的。
EP-A-0549679公开了一种典型的关于照明边光显示***的现有技术，其可用于竖直安装的标志中。EP-A-05549679通过在边光照明的透明板的两相对表面上施加点阵而解决了边光***照明不均匀的问题。实际上，这些点在从透明板“传送”光线，点阵经调节使点的密度在整个板上变化以便使照明均匀。
令人惊奇的是，已经发现采用透明或半透明材料的边光板，在其上布置点阵以产生传光效果(light piping effect)，可以显著改善家用冰箱的内部照明。由边光板提供的照明更均匀地分布在整个冰箱内。因此，与冰箱照明中使用的传统光源比较，使用瓦数减小的光源就可以照明冰箱。因此，本发明的另一个优点在于能够提供连续的照明而不会显著增加散热量。
因此，按照本发明的第一方面提供一种能够被内部照明的冰箱，其中，照明是通过基本透明材料的边光板提供的，边光板两相对表面中的至少一个在冰箱内部，在边光板上施加点阵以便产生向冰箱内的传光效果。
可以使用一个或多个边光板。
虽然边光板可以是冰箱的侧板，包括背板和顶板，但是边光板最好以架板存在，在其两个相对表面中的一个或者最好是两个上施加有点阵。
边光板最好是由丙烯酸类材料板例如帝国化学工业公司(ImperialChemical Industry plc.)出售的商品名称为Perspex的丙烯酸类材料板构成。这种板最好包括化学增亮剂，例如，Ciba Specialty Chemical(UK)Ltd.出售的商品名称为Ovitex B的光学增亮剂，以便改善板的透光度。
边光板的厚度一般小于15mm，最好在6mm至8mm的范围内。
在边光板的承载点阵的表面上最好施加透明或半透明的保护层，特别推荐将透明或半透明保护层直接施加在承载点阵的表面上。
在承载点阵的表面上最好施加光线漫射体，特别推荐的是这种光线漫射体也用作前述的保护层。一般来说，光线漫射体是由适当材料的板例如用作边光板如丙烯酸类材料板构成的，板厚最好达3mm。
当边光板是冰箱侧板时，反射层最好施加在与承载点阵的表面相对的表面上。反射层一般是由适当的材料板如白色或有色丙烯酸类材料板构成的，板厚最好达3mm。
在一个特别推荐的形式中，当边光板用作侧板时，边光板是包括光线漫射体及反射层的发光组件的一部分。
在本发明中，点阵用来提供现有技术中所讲的传统的漫射效果。
为了提供来自边光板的均匀的光线分布，被点所覆盖的表面比率最好随着与光源的距离的增加而增大。被点覆盖的表面比率(fraction)一般为靠近光源的0.05至离光源最远的0.15至0.55如0.16。虽然这种增大可以通过增加单位面积上的点数实现，但是，最好是通过增大点的直径实现，点阵在靠近光源处提供较小直径的点，而在远离光源处提供直径较大的点。一般来说靠近光源处的点的直径为大约0.3mm，而离光源最远处的点的直径为0.7mm。在特别推荐的一种点阵中，相邻点中心之间具有恒定的距离。
一般来说，点是白色的。但是也可使用非白色的点以达到美观的效果。
在本发明中可以使用单一光源，也可以使用两个或更多光源，特别是在板内要透射光线的距离下文中称为透射距离大的情况下。在透射距离大的情况下，两个或多个光源最好设置在边光板的相对边缘上。当透射距离在450至600mm范围内时一般可以使用单一光源。当透射距离在900至1200mm范围内时一般使用两个相对的光源。
现在对照以下附图进一步描述本发明。
图1表示边光板上的部分点阵。
图2表示穿过包括边光板的发光组件的局部剖视图。
图3表示传统冰箱，指示出边光板的供选择的位置。
图4表示传统冰箱，指示出边光板另外的供选择的位置。
图5表示光源沿边光板边缘的定位。
图6表示沿图5中A-A线剖开的立体图。
图7表示传统冰箱的剖视图，指示出边光板和光源的可能位置。
图8是使用传统照明***的传统冰箱的对比照片。
图9是使用设置为架板的边光板照明的传统冰箱的照片。
图10是使用设置为背板的边光板照明的传统冰箱的照片。
在图1中，在边光板11的一个表面上已印有点12的阵列。
在图2中，类似于图1的边光板且适于用作侧板的边光板21处于一个发光组件中，该发光组件包括一个光源22和一个反射层23。
在图3中，传统冰箱31具有用于设置边光板的三个可能的位置。边光板可以设置为顶板32和/或底板33，在这些位置上最好采用与图2所示类似的发光组件。边光板也可设置为架板34，在该位置上边光板在两个表面上印有点阵。
在图4中，传统的冰箱41具有安装边光板的两个可能的位置。边光板可以设置为背板42和/或侧板43。
在图5中，边光板51带有一个光源52的壳体，它沿一边缘设置，该光源通过电线53连接于电源和控制机构54。
在图6中，沿A-A线剖开的视图表示光源61紧密抵接边光板62的边缘。
在图7中，传统冰箱71被剖开以表示边光板72及光源73的可能位置。光源73可以设置在冰箱71的外表面74上，边光板从冰箱的泡沫隔绝体75伸入冰箱内部。
在图8中，传统冰箱使用传统白炽灯。可以看到，照明效果局部处于围绕灯泡附近的区域，冰箱内其余部分相对较暗。
在图9中，传统冰箱使用作为架板的边光板照明。照明光源与图8冰箱的光源强度相同。可以看到，照明效果在整个冰箱内分布得更为均匀。
在图10中，传统冰箱使用作为背板的边光板照明。照明光源与图8冰箱的光源强度相同。可以看到，甚至当与图9所用边光板相比较时照明效果在整个冰箱内分布得也更为均匀。

Claims (12)

1.一种内部能够被照明的冰箱，其中照明是由基本透明材料的边光板提供的，边光板的两个相对表面中的至少一个处于冰箱内，在其上施加点阵以产生向冰箱内的传光效果。
2.根据权利要求1所述的冰箱，其特征在于：边光板是冰箱的侧板。
3.根据权利要求2所述的冰箱，其特征在于：边光板是一个发光组件的一部分，该发光组件包括一个光线漫射体及一个反射层，光线漫射体施加在承载点阵的表面上，反射层施加在与承载点阵的表面相反的表面上。
4.根据权利要求1所述的冰箱，其特征在于：边光板是架板。
5.根据权利要求4所述的冰箱，其特征在于：边光板具有施加在两相对表面上的点阵。
6.根据权利要求1至5中任一项所述的冰箱，其特征在于：边光板是由丙烯酸类材料板构成的。
7.根据权利要求6所述的冰箱，其特征在于：丙烯酸类材料板包括光学增亮剂。
8.根据权利要求1至5中任一项所述的冰箱，其特征在于：在边光板的承载点阵的表面上，由点所覆盖的表面比率随着与光源的距离的增加而增大。
9.根据权利要求6所述的冰箱，其特征在于：在边光板的承载点阵的表面上，由点所覆盖的表面比率随着与光源的距离的增加而增大。
10.根据权利要求8所述的冰箱，其特征在于：由点所覆盖的表面比率在靠近光源处的0.05和在离光源最远处的0.15至0.55之间的范围内。
11.根据权利要求9所述的冰箱，其特征在于：由点所覆盖的表面比率在靠近光源处的0.05和在离光源最远处的0.15至0.55之间的范围内。
12.根据权利要求10或11所述的冰箱，其特征在于：由点所覆盖的表面比率的增大是通过增加点的直径而实现的。
CN97198522A 1996-10-03 1997-10-01 照明*** Expired - Fee Related CN1130536C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9620620.6A GB9620620D0 (en) 1996-10-03 1996-10-03 Illumination system
GB9620620.6 1996-10-03

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CN1232537A CN1232537A (zh) 1999-10-20
CN1130536C true CN1130536C (zh) 2003-12-10

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US (1) US6210013B1 (zh)
EP (1) EP0934496B1 (zh)
JP (1) JP2001501295A (zh)
CN (1) CN1130536C (zh)
AT (1) ATE195372T1 (zh)
AU (1) AU4563797A (zh)
CA (1) CA2267772C (zh)
DE (1) DE69702771T2 (zh)
ES (1) ES2150279T3 (zh)
GB (1) GB9620620D0 (zh)
GR (1) GR3034372T3 (zh)
HU (1) HU223356B1 (zh)
PL (1) PL185088B1 (zh)
RU (1) RU2196943C2 (zh)
SK (1) SK284067B6 (zh)
TR (1) TR199901202T2 (zh)
WO (1) WO1998014740A1 (zh)

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CA2267772A1 (en) 1998-04-09
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JP2001501295A (ja) 2001-01-30
CA2267772C (en) 2007-04-10
HUP0000296A2 (hu) 2000-06-28
GB9620620D0 (en) 1996-11-20
US6210013B1 (en) 2001-04-03
CN1232537A (zh) 1999-10-20
DE69702771T2 (de) 2001-03-29
HUP0000296A3 (en) 2002-08-28
SK44099A3 (en) 2000-04-10
EP0934496A1 (en) 1999-08-11
PL185088B1 (pl) 2003-02-28
HU223356B1 (hu) 2004-06-28
PL332668A1 (en) 1999-09-27
ES2150279T3 (es) 2000-11-16
DE69702771D1 (de) 2000-09-14
SK284067B6 (sk) 2004-09-08
AU4563797A (en) 1998-04-24
TR199901202T2 (xx) 1999-08-23
ATE195372T1 (de) 2000-08-15
RU2196943C2 (ru) 2003-01-20
GR3034372T3 (en) 2000-12-29

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