WO2008049302A1 - Dust-and-fog-preventer for lighting element of showcase - Google Patents

Dust-and-fog-preventer for lighting element of showcase Download PDF

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Publication number
WO2008049302A1
WO2008049302A1 PCT/CN2007/002255 CN2007002255W WO2008049302A1 WO 2008049302 A1 WO2008049302 A1 WO 2008049302A1 CN 2007002255 W CN2007002255 W CN 2007002255W WO 2008049302 A1 WO2008049302 A1 WO 2008049302A1
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WO
WIPO (PCT)
Prior art keywords
light guiding
light
total reflection
dust
air
Prior art date
Application number
PCT/CN2007/002255
Other languages
French (fr)
Chinese (zh)
Inventor
Chia-Yi Hsu
Original Assignee
Chia-Yi Hsu
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Publication date
Application filed by Chia-Yi Hsu filed Critical Chia-Yi Hsu
Publication of WO2008049302A1 publication Critical patent/WO2008049302A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/001—Devices for lighting, humidifying, heating, ventilation
    • 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
    • G02B6/0093—Means for protecting the light guide
    • 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
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
    • 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer

Definitions

  • the invention relates to a dustproof and anti-fog device for a display cabinet lighting device, in particular to a display cabinet illumination device using a total reflection principle, a total reflection interface between a first light guiding medium light guide and a second light guiding medium
  • the utility model relates to a dustproof and anti-fog device, in particular to a dustproof and anti-fog device of a transparent lighting module device of a display cabinet.
  • the dustproof and anti-fog device of the display cabinet lighting device of the invention is particularly suitable for a low-temperature transparent display cabinet. Background technique
  • Some lighting devices that use the principle of total reflection can often achieve some special lighting purposes, for example, to isolate the heat generated by the light source body and the light source from the display cabinet, eliminate the temperature rise caused by the lighting fixture in the display cabinet, and eliminate The visual interference caused by the lighting fixtures in the display cabinet makes the viewer's line of sight unobstructed, so as to improve the display cabinet's effectiveness in display and heat insulation.
  • the patent name is: transparent lighting module
  • Chinese patent application number is: 2 0 0 5 1 0 0 0 8 0 0 6 .
  • a transparent lighting module applied to the display cabinet, the transparent lighting module,
  • the illumination light generated by the light source guides the light to a proper position by means of a transparent light guide along the transparent wall of the display cabinet, and then deflects the light into the interior of the display cabinet with a beveled total reflection surface, illuminating the display Display objects in the cabinet.
  • the invisible air around the transparent lighting module actually plays a very important position, but the air is an unstable component, especially the moisture and dust in it.
  • the total reflection performance of the transparent lighting module has a destructive effect. When there is a temperature difference between the inside and outside of the cabinet, the wall of the display cabinet often condenses the mist.
  • the object of the present invention is to provide a dustproof and anti-fog device for a display cabinet lighting device, which is configured to totally reflect the transparent lighting module lighting device, which is invisible to the air layer, and is sealed and sealed to make the transparent lighting module
  • the interface for total reflection is not affected by condensation or falling dust.
  • Another object of the present invention is to ensure the illumination efficiency of the transparent lighting module of the display cabinet, even if the wall of the transparent lighting module of the display cabinet is condensed by the moisture in the air, the total reflection performance of the transparent lighting module is not affected.
  • Another object of the present invention is to enhance the dustproof performance of the transparent lighting module of the display cabinet, so that the transparent photo The total reflection interface of the module does not change performance due to dust.
  • the object of the present invention is achieved by the transparent illumination module of the display cabinet illumination device, which guides the illumination light generated by the light source through the transparent light guide member along the transparent wall direction to guide the light to a proper position by total reflection, and then obliquely
  • the cut total reflection surface turns the light into the interior of the display cabinet to illuminate the display objects in the display cabinet.
  • the transparent auxiliary member has a beveled surface which is matched with the beveled total reflection surface of the transparent light guiding member, and an air gap formed by combining with the transparent light guiding member, on the one hand, assists the total reflection surface to complete total reflection, and on the other hand, when viewing the interior of the display cabinet , the presence of the chamfered total reflection surface and air gap is not felt.
  • the display cabinet transparent lighting module lighting device dustproof and anti-fog device is a gas-sealed sleeve made of double-layer transparent sheet.
  • the envelope is sealed with dry gas.
  • the dust-proof and anti-fog device can also be divided into several sections to facilitate assembly. Between the dustproof and anti-fog device and the light guide, it is bonded with a transparent glue.
  • the air layer interface on which the light guide member is totally reflected is sealed inside the gas seal sleeve, and the dry gas in the envelope does not contain moisture, and no condensation water droplets are generated, so that the above water droplets do not cause the light scattering. Dust and condensation droplets deposited on the top surface of the transparent lighting module will not affect the total reflection air layer interface and will not reduce the total reflection efficiency.
  • Another embodiment of the dustproof and anti-fog device of the transparent lighting module of the display cabinet is a gas-sealed sleeve made of a single-layer transparent sheet, the sealing gas is sealed in the envelope, and the single-layer transparent sheet of the dust-proof and anti-fog device is directly sealed.
  • the light member including a beveled total reflection surface, the light is diverted into the interior of the display cabinet. The light is turned into the light entrance section of the interior of the display cabinet. Because it is not required for total reflection, it can be used as a transparent glue bonding area between the dustproof anti-fog device and the light guide.
  • the light incident port can also be attached with other scattering or Concentrating piece.
  • FIG. 1 is a functional explanatory diagram of a lighting device of a display cabinet transparent lighting module
  • FIG. 2 is a functional explanatory diagram of an embodiment of a dustproof and anti-fog device for a lighting device of a transparent lighting module;
  • FIG. 3 is a functional explanatory diagram of another embodiment of a dustproof and anti-fog device for a transparent lighting module lighting device. detailed description
  • the transparent lighting module 1 is a functional explanatory diagram of a lighting device for a transparent lighting module of a display cabinet.
  • the transparent lighting module 1 guides the light illuminating light 3 generated by the light source 2 through a transparent light guiding member 4 in a transparent wall direction to guide light to a proper reflection manner. Position, then through the beveled total reflection surface 5, the light is turned into the interior of the display cabinet 6, illuminating the inside of the display cabinet Show objects.
  • the transparent auxiliary member 17 has a slope which is matched with the beveled total reflection surface 5, and the air gap formed by the combination assists the total reflection surface 5 to complete the total reflection, and on the other hand, when viewing the interior of the display cabinet via the line of sight 18, the feeling The presence of the total reflection surface 5 and the air gap is not obtained.
  • the air 7 around the transparent illumination module actually plays a very important position, but the air is an unstable component, especially the moisture and dust therein, which will be transparent lighting module.
  • the total reflection performance has a destructive effect.
  • the wall of the display cabinet often condenses the mist 8 , which replaces the air, changes the total reflection interface of the transparent illumination module, and causes the light to scatter 9 .
  • the dust 10 will also change the total reflection interface of the transparent lighting module, reducing the total reflection efficiency.
  • 1 1 and 1 2 are glass layers, and the transparent light guiding member 4 is protected from scratches and the like.
  • the air gaps 1 3, 14 between the glass layer 1 1 , 1 2 and the light guide 4 are necessary for the total reflection of the light guide 4, if the glass layer 1 1 , 1 2 and the light guide 4 are , bonded by transparent glue, the total reflection interface is moved to the contact faces 15 5 , 16 of the glass layer 1 1 , 1 2 and air.
  • the outer wall of the display cabinet will condense water, as shown in Figure 8 of Figure 1, these small water droplets 8 will cause light to scatter, as shown in Figure 9, the top surface of the transparent lighting module 1 1 5, there will be dust 10 accumulation, destroying the total reflection interface. Small water droplets 8 and falling dust 10 will reduce the total reflection efficiency.
  • the object of the present invention is to eliminate the effects of small water droplets 8 and falling dust 10 .
  • FIG. 2 is a functional explanatory diagram of an embodiment of a dustproof and anti-fog device for a lighting device of a transparent lighting module.
  • the dustproof and anti-fog device 20 is a gas-sealed sleeve made of a double-layer transparent sheet, and the sealing gas is sealed with a dry gas A.
  • the dust anti-fog device 20 can also be divided into several sections for assembly. As shown in Fig.
  • the dust-proof and anti-fog device 2 0 is bonded to the total reflection surface of the light guide 4 with a transparent adhesive.
  • the air layer interface for causing the light guide 4 to be totally reflected is sealed inside the gas seal sleeve, and the dry gas A in the envelope contains no moisture and does not cause condensation water droplets, so that there is no such problem that the water droplets cause scattering of light.
  • the dust 10 10 accumulated on the top surface of the transparent lighting module 1 and the small water droplets 8 will not affect the total reflection air layer interface, and will not reduce the total reflection efficiency.
  • FIG. 3 is an explanatory view of another embodiment of a dustproof and anti-fog device for a transparent lighting module lighting device, and a dustproof and anti-fog device
  • 3 0 is a gas-tight sleeve made of a single-layer transparent sheet, the envelope is sealed with a dry gas A, and the dust-proof and anti-fog device 30 is directly sealed on the periphery of the total reflection surface of the light guide 4, including the entire chamfer Reflecting surface 5.
  • the transparent adhesive bond area of the piece 4, the light incident port section W may also be attached with other scattering or concentrating members.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

A dust-and-fog-preventer (20,30) for lighting element of showcase comprises a light guide (4) formed by a first light-guiding medium and an airproof dust-and-fog-preventer (20,30) formed by a double-layer transparent pane. A second light-guiding medium which is air (A) is sealed in the airproof dust-and-fog-preventer (20,30). An interface of the first light-guiding medium for totally reflecting the guided light is enclosed in the airproof dust-and-fog-preventer (20,30). The airproof dust-and-fog-preventer (20,30) is agglutinated with the interface of the first light-guiding medium for totally reflecting the guided light. The second light-guiding medium which is air (A) sealed in the airproof dust-and-fog-preventer (20,30) is tied in with the light guide (4) formed by a first light-guiding medium.

Description

展示柜照明装置防尘防雾装置 技术领域  Dustproof and anti-fog device for display cabinet lighting device
本发明涉及一种展示柜照明装置的防尘防雾装置， 特别是涉及一种利用全反射 原理的展示柜照明装置中， 第一导光介质光导与第二导光介质间的全反射界面的一种 防尘防雾装置， 尤其是涉及一种展示柜的透明照明模块装置的防尘防雾装置， 本发明 的展示柜照明装置防尘防雾装置， 特别适用于低温透明展示柜。 背景技术  The invention relates to a dustproof and anti-fog device for a display cabinet lighting device, in particular to a display cabinet illumination device using a total reflection principle, a total reflection interface between a first light guiding medium light guide and a second light guiding medium The utility model relates to a dustproof and anti-fog device, in particular to a dustproof and anti-fog device of a transparent lighting module device of a display cabinet. The dustproof and anti-fog device of the display cabinet lighting device of the invention is particularly suitable for a low-temperature transparent display cabinet. Background technique
一些应用全反射原理的照明装置， 常能达成一些特殊的照明目的， 例如， 为了 将光源本体与光源产生的热隔绝于展示柜之外， 消除照明灯具在展示柜内造成的温 升， 并消除照明灯具在展示柜内造成的视觉干扰， 使观看者视线不受阻挡， 以改善展 示柜在展示效果和隔热节能方面的效益。 专利名称为： 透明照明模块， 中国专利申请 号为： 2 0 0 5 1 0 0 0 8 0 0 6 . 4， 公幵了一种应用于展示柜的透明照明模块， 所述透明照明模块， 将光源产生的照明光线， 通过沿展示柜透明壁方向的透明导光 件， 以全反射方式导引光线至适当位置， 再以斜切的全反射面， 将光线转向导入展示 柜内部， 照亮展示橱柜内的展示对象。 在进行全反射导引光线的过程中， 透明照明模 块周围， 看起来无形的空气， 实际上占有非常关键的地位， 但空气是成分不稳定的物 质， 尤其是其中的水气和灰尘， 会对透明照明模块的全反射性能造成破坏性影响， 当 低温展示橱柜内外有温差时， 展示柜的壁面常会凝结雾气， 这些小水滴取代了空气， 改变了透明照明模块的全反射界面， 使光线形成散射， 降低甚至破坏了透明照明模块 的照明效率； 落尘也会改变透明照明模块的全反射界面， 降低全反射效率。 发明内容  Some lighting devices that use the principle of total reflection can often achieve some special lighting purposes, for example, to isolate the heat generated by the light source body and the light source from the display cabinet, eliminate the temperature rise caused by the lighting fixture in the display cabinet, and eliminate The visual interference caused by the lighting fixtures in the display cabinet makes the viewer's line of sight unobstructed, so as to improve the display cabinet's effectiveness in display and heat insulation. The patent name is: transparent lighting module, Chinese patent application number is: 2 0 0 5 1 0 0 0 8 0 0 6 . 4, a transparent lighting module applied to the display cabinet, the transparent lighting module, The illumination light generated by the light source guides the light to a proper position by means of a transparent light guide along the transparent wall of the display cabinet, and then deflects the light into the interior of the display cabinet with a beveled total reflection surface, illuminating the display Display objects in the cabinet. In the process of total reflection guiding light, the invisible air around the transparent lighting module actually plays a very important position, but the air is an unstable component, especially the moisture and dust in it. The total reflection performance of the transparent lighting module has a destructive effect. When there is a temperature difference between the inside and outside of the cabinet, the wall of the display cabinet often condenses the mist. These water droplets replace the air, changing the total reflection interface of the transparent illumination module to scatter the light. , reducing or even destroying the lighting efficiency of the transparent lighting module; falling dust will also change the total reflection interface of the transparent lighting module, reducing the total reflection efficiency. Summary of the invention
本发明的目的在于， 提供一种展示柜照明装置防尘防雾装置， 将透明照明模块 照明装置， 赖以进行全反射， 看起来无形的空气层，'干燥密封起来， 使透明照明模块 赖以进行全反射的界面， 不受凝结水滴或落尘的影响。  The object of the present invention is to provide a dustproof and anti-fog device for a display cabinet lighting device, which is configured to totally reflect the transparent lighting module lighting device, which is invisible to the air layer, and is sealed and sealed to make the transparent lighting module The interface for total reflection is not affected by condensation or falling dust.
本发明的另一目的， 在于确保展示柜透明照明模块的照明效率， 即使在展示柜 的透明照明模块壁面， 因空气中的水气而凝结雾气时， 也不会影响透明照明模块的全 反射性能； 本发明的再一目的， 在于加强展示柜透明照明模块的防尘性能， 使透明照 明模块的全反射界面， 不因落尘而改变性能。 Another object of the present invention is to ensure the illumination efficiency of the transparent lighting module of the display cabinet, even if the wall of the transparent lighting module of the display cabinet is condensed by the moisture in the air, the total reflection performance of the transparent lighting module is not affected. Another object of the present invention is to enhance the dustproof performance of the transparent lighting module of the display cabinet, so that the transparent photo The total reflection interface of the module does not change performance due to dust.
本发明的目的是这样达成的- 展示柜照明装置的透明照明模块， 将光源产生的照明光线， 通过沿透明壁方向 的透明导光件， 以全反射方式导引光线至适当位置， 再经斜切的全反射面， 将光线转 向导入展示柜内部， 照亮展示柜内的展示对象。 透明辅助件， 有一与透明导光件斜切 的全反射面契合的斜面， 与透明导光件组合后形成的空气隙， 一方面協助全反射面完 成全反射， 一方面使观看展示柜内部时， 感觉不到斜切的全反射面及空气隙的存在。  The object of the present invention is achieved by the transparent illumination module of the display cabinet illumination device, which guides the illumination light generated by the light source through the transparent light guide member along the transparent wall direction to guide the light to a proper position by total reflection, and then obliquely The cut total reflection surface turns the light into the interior of the display cabinet to illuminate the display objects in the display cabinet. The transparent auxiliary member has a beveled surface which is matched with the beveled total reflection surface of the transparent light guiding member, and an air gap formed by combining with the transparent light guiding member, on the one hand, assists the total reflection surface to complete total reflection, and on the other hand, when viewing the interior of the display cabinet , the presence of the chamfered total reflection surface and air gap is not felt.
展示柜透明照明模块照明装置防尘防雾装置， 是由双层透明薄片制成的气密封 套， 封套内封入干燥气体， 防尘防雾装置亦可分为数段， 以利组装。 防尘防雾装置与 导光件之间， 以透明胶粘合。 使导光件赖以产生全反射的空气层界面， 被封在气密封 套内部， 而封套内的干燥气体， 不含水分， 不会产生凝结水滴， 故无前述水滴造成光 线散射的困扰。 透明照明模块顶面上堆积的落尘与凝结小水滴， 也不会影响全反射空 气层界面， 不会降低全反射效率。  The display cabinet transparent lighting module lighting device dustproof and anti-fog device is a gas-sealed sleeve made of double-layer transparent sheet. The envelope is sealed with dry gas. The dust-proof and anti-fog device can also be divided into several sections to facilitate assembly. Between the dustproof and anti-fog device and the light guide, it is bonded with a transparent glue. The air layer interface on which the light guide member is totally reflected is sealed inside the gas seal sleeve, and the dry gas in the envelope does not contain moisture, and no condensation water droplets are generated, so that the above water droplets do not cause the light scattering. Dust and condensation droplets deposited on the top surface of the transparent lighting module will not affect the total reflection air layer interface and will not reduce the total reflection efficiency.
展示柜透明照明模块照明装置防尘防雾装置另一实施例， 是由单层透明薄片制 成的气密封套， 封套内封入干燥气体， 防尘防雾装置单层透明薄片直接封死在导光件 的全反射面周边上， 包括斜切的全反射面， 将光线转向导入展示柜内部。 将光线转向 导入展示柜内部的光线入射口段， 因无全反射功能需要， 可作为防尘防雾装置与导光 件的透明胶粘合区， 此光线入射口段也可贴附其它散射或聚光件。 附图说明 .  Another embodiment of the dustproof and anti-fog device of the transparent lighting module of the display cabinet is a gas-sealed sleeve made of a single-layer transparent sheet, the sealing gas is sealed in the envelope, and the single-layer transparent sheet of the dust-proof and anti-fog device is directly sealed. On the periphery of the total reflection surface of the light member, including a beveled total reflection surface, the light is diverted into the interior of the display cabinet. The light is turned into the light entrance section of the interior of the display cabinet. Because it is not required for total reflection, it can be used as a transparent glue bonding area between the dustproof anti-fog device and the light guide. The light incident port can also be attached with other scattering or Concentrating piece. BRIEF DESCRIPTION OF THE DRAWINGS
为进一步说明本发明的具体技术内容， 以下结合实施例及附图详细说明如后， 其中：  In order to further illustrate the specific technical content of the present invention, the following detailed description will be made in conjunction with the embodiments and the accompanying drawings, in which:
图 1是展示柜透明照明模块照明装置功能说明图；  1 is a functional explanatory diagram of a lighting device of a display cabinet transparent lighting module;
图 2是透明照明模块照明装置防尘防雾装置实施例功能说明图；  2 is a functional explanatory diagram of an embodiment of a dustproof and anti-fog device for a lighting device of a transparent lighting module;
图 3是透明照明模块照明装置防尘防雾装置另一实施例功能说明图。 具体实施方式  3 is a functional explanatory diagram of another embodiment of a dustproof and anti-fog device for a transparent lighting module lighting device. detailed description
图 1是展示柜透明照明模块照明装置的功能说明图， 透明照明模块 1， 将光源 2产生的照明光线 3， 通过沿透明壁方向的透明导光件 4， 以全反射方式导引光线至 适当位置， 再经斜切的全反射面 5 , 将光线转向射入展示柜内部 6， 照亮展示柜内的 展示对象。 透明辅助件 1 7有一与斜切的全反射面 5契合的斜面， 组合后形成的空气 隙， 一方面協助全反射面 5完成全反射， 一方面使经由视线 1 8观看展示柜内部时， 感觉不到全反射面 5及空气隙的存在。 在进行全反射导引光线的过程中， 透明照明模 块周围的空气 7， 实际上占有非常关键的地位， 但空气是成分不稳定的物质， 尤其是 其中的水气和灰尘， 会对透明照明模块的全反射性能造成破坏性影响， 当低温展示柜 内外有温差时， 展示柜的壁面常会凝结雾气 8 , 这些小水滴取代了空气， 改变了透明 照明模块的全反射界面， 使光线形成散射 9， 降低甚至破坏了透明照明模块的照明效 率， 落尘 1 0也会改变透明照明模块的全反射界面， 降低全反射效率。 图 1中 1 1、 1 2是玻璃层， 保护透明导光件 4， 免于刮伤等损伤。 玻璃层 1 1、 1 2与导光件 4 之间的空气隙 1 3、 1 4， 是导光件 4产生全反射的必要条件， 若玻璃层 1 1、 1 2 与导光件 4之间， 以透明胶粘合， 则全反射界面移至玻璃层 1 1、 1 2与空气的接触 面 1 5、 1 6。 当展示柜内的温度较低时， 展示柜外壁会凝结水气， 如图 1中 8所 示， 这些小水滴 8会造成光线散射， 如图 1中 9所示， 透明照明模块 1的顶面 1 5， 会有落尘 1 0堆积， 破坏全反射界面。 小水滴 8与落尘 1 0 , 会降低全反射效率。 本 发明的目的便是消除小水滴 8与落尘 1 0的影响。 1 is a functional explanatory diagram of a lighting device for a transparent lighting module of a display cabinet. The transparent lighting module 1 guides the light illuminating light 3 generated by the light source 2 through a transparent light guiding member 4 in a transparent wall direction to guide light to a proper reflection manner. Position, then through the beveled total reflection surface 5, the light is turned into the interior of the display cabinet 6, illuminating the inside of the display cabinet Show objects. The transparent auxiliary member 17 has a slope which is matched with the beveled total reflection surface 5, and the air gap formed by the combination assists the total reflection surface 5 to complete the total reflection, and on the other hand, when viewing the interior of the display cabinet via the line of sight 18, the feeling The presence of the total reflection surface 5 and the air gap is not obtained. In the process of total reflection guiding light, the air 7 around the transparent illumination module actually plays a very important position, but the air is an unstable component, especially the moisture and dust therein, which will be transparent lighting module. The total reflection performance has a destructive effect. When there is a temperature difference between the inside and outside of the low temperature display cabinet, the wall of the display cabinet often condenses the mist 8 , which replaces the air, changes the total reflection interface of the transparent illumination module, and causes the light to scatter 9 . Reduce or even destroy the lighting efficiency of the transparent lighting module, the dust 10 will also change the total reflection interface of the transparent lighting module, reducing the total reflection efficiency. In Fig. 1, 1 1 and 1 2 are glass layers, and the transparent light guiding member 4 is protected from scratches and the like. The air gaps 1 3, 14 between the glass layer 1 1 , 1 2 and the light guide 4 are necessary for the total reflection of the light guide 4, if the glass layer 1 1 , 1 2 and the light guide 4 are , bonded by transparent glue, the total reflection interface is moved to the contact faces 15 5 , 16 of the glass layer 1 1 , 1 2 and air. When the temperature inside the display cabinet is low, the outer wall of the display cabinet will condense water, as shown in Figure 8 of Figure 1, these small water droplets 8 will cause light to scatter, as shown in Figure 9, the top surface of the transparent lighting module 1 1 5, there will be dust 10 accumulation, destroying the total reflection interface. Small water droplets 8 and falling dust 10 will reduce the total reflection efficiency. The object of the present invention is to eliminate the effects of small water droplets 8 and falling dust 10 .
图 2是透明照明模块照明装置防尘防雾装置的一实施例功能说明图， 防尘防雾 装置 2 0， 是由双层透明薄片制成的气密封套， 封套内封入干燥气体 A， 防尘防雾装 置 2 0亦可分为数段以利组装， 如图 2所示， 分为 2 0、 2 1两段， 斜切的全反射面 5， 将光线转向， 通过光线入射口段 W， 射入展示柜内部 6， 入射口段 W， 因无全 反射功能需要， 气密封套可以取消， 也可贴附其它散射或聚光件。 防尘防雾装置 2 0 与导光件 4全反射面之间， 以透明胶粘合。 使导光件 4产生全反射的空气层界面， 被 封在气密封套内部， 而封套内的干燥气体 A, 不含水分， 不会产生凝结水滴， 故无前 述水滴造成光线散射的困扰。 同理， 透明照明模块 1顶面上堆积的落尘 1 0与凝结小 水滴 8 , 也不会影响全反射空气层界面， 不会降低全反射效率。  2 is a functional explanatory diagram of an embodiment of a dustproof and anti-fog device for a lighting device of a transparent lighting module. The dustproof and anti-fog device 20 is a gas-sealed sleeve made of a double-layer transparent sheet, and the sealing gas is sealed with a dry gas A. The dust anti-fog device 20 can also be divided into several sections for assembly. As shown in Fig. 2, it is divided into two sections of 2 0 and 2 1 , and the beveled total reflection surface 5 is turned, and the light is incident on the mouth section W, Injection into the interior of the display cabinet 6, the entrance section W, because of the need for total reflection, the hermetic sleeve can be eliminated, or other scattering or concentrating parts can be attached. The dust-proof and anti-fog device 2 0 is bonded to the total reflection surface of the light guide 4 with a transparent adhesive. The air layer interface for causing the light guide 4 to be totally reflected is sealed inside the gas seal sleeve, and the dry gas A in the envelope contains no moisture and does not cause condensation water droplets, so that there is no such problem that the water droplets cause scattering of light. Similarly, the dust 10 10 accumulated on the top surface of the transparent lighting module 1 and the small water droplets 8 will not affect the total reflection air layer interface, and will not reduce the total reflection efficiency.
图 3是透明照明模块照明装置防尘防雾装置另一实施例说明图， 防尘防雾装置 3 is an explanatory view of another embodiment of a dustproof and anti-fog device for a transparent lighting module lighting device, and a dustproof and anti-fog device
3 0 , 是由单层透明薄片制成的气密封套， 封套内封入干燥气体 A， 防尘防雾装置 3 0直接封死在导光件 4的全反射面周边上， 包括斜切的全反射面 5。 斜切的全反射面 5， 将光线转向， 通过光线入射口段 W， 射入展示柜内部 6， 入射口段 W, 因无全 反射功能需要， 可作为防尘防雾装置 3 0与导光件 4的透明胶粘合区， 此光线入射口 段 W, 也可贴附其它散射或聚光件。 以上所述的具体实施例， 对本发明的目的、 技术方案和效益进行了详细说明， 所应理解的是， 以上所述仅为本发明的具体实施例而已， 并不用于限制本发明， 凡在 本发明的精神和原则之内， 所做的任何修改、 等同替换、 改迸等， 均应包含在本发明 的保护范围之内。 3 0 , is a gas-tight sleeve made of a single-layer transparent sheet, the envelope is sealed with a dry gas A, and the dust-proof and anti-fog device 30 is directly sealed on the periphery of the total reflection surface of the light guide 4, including the entire chamfer Reflecting surface 5. The beveled total reflection surface 5, deflects the light, passes through the light incident port segment W, and enters the interior of the display cabinet 6, the entrance port segment W, which can be used as a dustproof and anti-fog device 30 and light guide because it has no total reflection function. The transparent adhesive bond area of the piece 4, the light incident port section W, may also be attached with other scattering or concentrating members. The embodiments, the technical solutions, and the advantages of the present invention are described in detail above. It is to be understood that the foregoing description is only exemplary embodiments of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, modifications, etc., which are within the spirit and scope of the invention, are intended to be included within the scope of the invention.

Claims

权 利 要 求 Rights request
1、 一种展示柜照明装置防尘防雾装置， 展示柜照明装置， 包括一第一导光介 质构成的光导， 以空气为第二导光介质进行内全反射导光， 其特征在于， 由双层透明 片制成的气密封套防尘防雾装置， 气密封套防尘防雾装置内， 封存有干燥的第二导光 介质， 空气； 第一导光介质执行内全反射导光的界面， 包覆于由双层透明片制成的气 密封套防尘防雾装置中， 气密封套防尘防雾装置内封存有千燥的第二导光介质空气， 气密封套防尘防雾装置与第一导光介质执行内全反射导光的界面以透明胶粘合， 气密 封套防尘防雾装置中封存的第二导光介质空气， 与第一导光介质光导， 结合为一体， 结合为一体后， 第一导光介质光导， 执行内全反射导光的空气界面与外界隔离， 不受 外界水气或灰尘影响。 1. A dustproof and anti-fog device for a display cabinet lighting device, wherein the display cabinet illumination device comprises a light guide formed by a first light guiding medium, and the air is the second light guiding medium for internal total reflection light guiding, wherein A gas-proof sleeve dust-proof and anti-fog device made of a double-layer transparent sheet, a gas-sealed sleeve dust-proof and anti-fog device, and a sealed second light guiding medium and air are sealed; the first light guiding medium performs internal total reflection light guiding The interface is covered in a gas-proof sleeve dust-proof and anti-fog device made of a double-layer transparent sheet, and the air-sealed sleeve dust-proof and anti-fog device is sealed with a dry second light guiding medium air, and the air sealing sleeve is dustproof The interface between the fog device and the first light guiding medium to perform internal total reflection light guiding is adhered by a transparent glue, and the second light guiding medium air sealed in the gas sealing sleeve dustproof and antifogging device is combined with the first light guiding medium light guide. Integral, integrated into one, the first light guiding medium light guide, the air interface that performs internal total reflection light guiding is isolated from the outside, and is not affected by external moisture or dust.
2、 一种展示柜照明装置防尘防雾装置， 展示柜照明装置包括一第一导光介质 构成的光导， 以空气为第二导光介质进行内全反射导光， 其特征在于， 由单层透明片 制成的气密封套防尘防雾装置， 气密封套防尘防雾装置， 包覆第一导光介质执行内全 反射导光的界面， 气密封套防尘防雾装置与第一导光介质执行内全反射导光的界面之 间， 封存有干燥的第二导光介质， 空气； 第二导光介质空气与第一导光介质光导结合 为一体， 结合为一体后， 第一导光介质光导执行内全反射导光的空气界面与外界隔 离， 不受外界水气或灰尘影响。  2. A dustproof and anti-fog device for a display cabinet lighting device, wherein the display cabinet illumination device comprises a light guide composed of a first light guiding medium, and the air is the second light guiding medium for internal total reflection light guiding, wherein A gas-tight sleeve dust-proof and anti-fog device made of a transparent sheet, a gas-tight sleeve dust-proof and anti-fog device, an interface for covering the first light-guide medium to perform internal total reflection light guide, a gas-tight sleeve dust-proof and anti-fog device and a first A light guiding medium performs an internal total reflection light guiding interface, and a dry second light guiding medium is sealed, air; the second light guiding medium air is combined with the first light guiding medium light guide, and integrated into one, The air interface of a light guiding medium light guide that performs internal total reflection and light guiding is isolated from the outside, and is not affected by external moisture or dust.
PCT/CN2007/002255 2006-10-25 2007-07-25 Dust-and-fog-preventer for lighting element of showcase WO2008049302A1 (en)

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Application Number Priority Date Filing Date Title
CN200610150410.X 2006-10-25
CNB200610150410XA CN100510524C (en) 2006-10-25 2006-10-25 Display cabinet illumination device dust-proof fog-free device

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222864A (en) * 1996-02-16 1997-08-26 Dainippon Printing Co Ltd Stained glass type display
JPH1195707A (en) * 1997-09-19 1999-04-09 Dainippon Printing Co Ltd Window
CN1258604A (en) * 1998-12-26 2000-07-05 章杰 Frost and dew preventer for window
CN1818459A (en) * 2005-02-07 2006-08-16 徐佳义 Transparent illuminating module

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222864A (en) * 1996-02-16 1997-08-26 Dainippon Printing Co Ltd Stained glass type display
JPH1195707A (en) * 1997-09-19 1999-04-09 Dainippon Printing Co Ltd Window
CN1258604A (en) * 1998-12-26 2000-07-05 章杰 Frost and dew preventer for window
CN1818459A (en) * 2005-02-07 2006-08-16 徐佳义 Transparent illuminating module

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CN101169239A (en) 2008-04-30

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