CN103782089A - 带有照射特征改变膜的灯 - Google Patents

带有照射特征改变膜的灯 Download PDF

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CN103782089A
CN103782089A CN201280043458.4A CN201280043458A CN103782089A CN 103782089 A CN103782089 A CN 103782089A CN 201280043458 A CN201280043458 A CN 201280043458A CN 103782089 A CN103782089 A CN 103782089A
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lamp
film
support chip
dazzling screen
housing
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CN103782089B (zh
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于尔根·拉普
克莱门斯·胡默尔
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Herbert Waldmann GmbH and Co KG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
    • 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
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
    • 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
    • F21W2131/403—Lighting for industrial, commercial, recreational or military use for machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • F21Y2101/00—Point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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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  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

一种灯（1），其带有壳体（10），设于所述壳体（10）中的多个发光体（3），沿照射方向（A）闭合所述壳体（10）的遮光片（5），及用于改变所述发光体（3）的照射特征的膜（6），所述膜（6）沿所述照射方向（A）设于所述发光体（3）的前方，其中所述膜（6）设于所述遮光片（5）与支撑片（7）之间，其中所述膜（6）与所述遮光片（5）和所述支撑片（7）直接接触。

Description

带有照射特征改变膜的灯
技术领域
本发明涉及权利要求1的前序部分所述的灯。
背景技术
此类灯一般包括壳体，所述壳体内设有多个发光体。沿照射方向使用遮光片闭合壳体的前部。此外，在沿照射方向在发光体的前方设置膜，所述膜用于改变发光体的照射特征，例如，使得发射光均匀或将其导向至某一方向。
例如，在设有壳体内的发光体生成多个光锥的情况下，可能需要使得发射光均匀的膜，因为作为工作灯或加工灯使用时，光锥会投射出多个阴影。为了防止这一情况的发生，需要所谓的扩散膜，其通过光学折射来分散单个发光光锥并由此防止投射出单个阴影。此外，此类膜还可引起单个发光体的发光光锥的形状修整，例如，通过将其反射至某一照射角度。
高能发光体的问题在于灯材料会因为不同的热膨胀系数而在不同的温度发生膨胀，从而诱导热应力。此类热应力会导致膜起皱和起泡，尤其是粘附至遮光片或卡合入壳体中的膜，这样，膜的发光特性因膜具有的高热膨胀系数α（范围在70～80x10-6K-1之间）而丧失。比较而言，铝制壳体的热膨胀系数接近于23x10-6K-1，而所用遮光片的热膨胀系数则为3～4.5x10-6K-1。由于这些重大的差别，特别是膜的强力膨胀，会导致明显的结构翘曲，即，起皱和起泡。
此外，已经提出了这样的灯，即，通过遮光片的拉丝表面对例如由LED发光体产生的高亮度光点进行稍微的散射或均质，但这无法防止投射出多个阴影。对光进行导向使之通过设于发光体前方的透镜也无法解决这一问题。
发明内容
本发明旨在解决上述问题。
一种灯，其带有壳体，多个发光体设于所述壳体中。所述壳体由遮光片沿照射方向闭合，并包括用于改变所述发光体的照射特征的膜，所述膜沿所述照射方向设于所述发光体的前方。根据本发明，所述膜设于所述遮光片与支撑片之间，其中所述膜与所述遮光片和所述支撑片直接接触。
由于在所述遮光片和所述支撑片之间设置了用于改变发光体照射特征并且与之直接接触的膜，可达成所述遮光片和所述支撑片之间的浮动安装，从而使得所述膜能够沿所有方向进行移动补偿，尤其是响应热诱导膨胀沿沿长度方向和宽度方向进行移动补偿，从而防止起泡或起皱。浮动安装膜的另一个优点是可不使用任何粘合剂而将膜安装在所述遮光片和所述支撑片之间。由此，膜可独立于所述遮光片和所述支撑片而膨胀或收缩，并且，即使所用材料的热膨胀系数明显不同，也能以无应力的方式安装。
较佳实施例中，所述遮光片和所述支撑片中至少有一个以弹性方式安装。
所述遮光片和所述支撑片中至少有一个以弹性方式安装使得也可对膜的厚度变化进行补偿。此外，所述遮光片和所述支撑片中至少有一个以弹性方式安装使得可沿照射方向（即其厚度方向）以预应力的方式安装所述膜，从而以此方式额外地防止起泡或起皱。
特别简单的实例中，弹性安装所述支撑片。
弹性安装支撑片的优点在于，通常沿照射方向设于支撑片后方并且朝外部遮盖壳体的遮光片可刚性连接至壳体，尤其可较容易地与外部环境形成密封性。
然而，若需要，也可以弹性方式安装所述遮光片；例如，可与所述壳体形成为互锁。
如前所述，所述支撑片最好设于朝向发光体的一侧。
例如，可利用支撑支座安装所述支撑片。支撑支座的优点在于，这一安装方式不会妨碍支撑片沿长度方向和宽度方向的膨胀，从而使得可以基本无应力的方式将支撑片弹性安装在壳体内。
此类支撑支座的简单实施例可为固化粘性珠。此类固化粘性珠可例如设于支撑片的相对侧壁上，或者壳体上的相应位置上。若在将支撑片插入壳体之前粘附并且固化所述粘性珠，则其在固化之后具有某种程度的挠性并且可弹性地安装支撑片，同时使得支撑片可沿长度方向和宽度方向膨胀。
除固化粘性珠之外，也可使用具有挠性设计的支撑支座。一种可想到的代替物为绕整个圆周设置的O形环。
若沿所述支撑片的方向在压缩负载下将所述遮光片安装入所述壳体则可非常有效地防止起泡或起皱。由遮光片沿支撑片的方向施加并且由弹性支撑支座吸收的一定接触压力可使得所述膜在遮光片和支撑片之间保持平坦。
可通过绕着壳体周围设置粘合而达成遮光片的简单安装。此外，可利用此类圆周粘合使得壳体对于周围物体是密封的。
此外，膜的中央最好设有屏。为此，所述屏最好为圆周设计，应确保膜仍然能够沿长度方向和宽度方向膨胀。
或者，可仅将屏印在遮光片上，从而使得膜可在遮光片的整个覆盖区域内膨胀。
附图说明
参考附图下文将根据实施例更详细地描述本发明，其中：
图1示出了根据本发明的灯的剖视图；
图2为示出图1所示灯的立体图。
具体实施方式
图1为根据本发明的灯1的剖视图，其根据灯盒原理设计。灯1包括壳体10，壳体10带有底板和圆周侧壁，并且多个发光体3设于壳体10中。本实例中，发光体3设计为发光二极管（LED）并且均匀分布在壳体10的底板上。壳体10最好为铝制并且在底板的外侧设有多个冷却肋条20，以排出发光二极管生成的废热。沿照射方向A，以夹层结构在壳体10中设置支撑片7，改变发光体3照射特征的膜6，及遮光片5。
支撑片7安装在绕整个圆周设置的第一台阶部11上的弹性支座上。本实施例中，弹性支座14为在安装支撑片7之前粘附的固化粘性珠。本实施例中，该固化粘性珠仅粘附在壳体10的两个侧壁处的第一台阶11上。
由此，支撑片7可响应热暴露而沿长度方向和宽度方向膨胀，并且因此浮动安装在壳体内。所述浮动安装的另一相关特征在支撑片7围绕整个圆周离壳体10的侧壁有适当距离，所述侧壁在第二台阶部12上连续。
改变发光体3照射特征的膜6设于支撑片7的中心。本实施例中，在遮光片5上印有屏（screen）以使得膜6与屏之间设有足够的间隙以允许沿长度方向和宽度方向进行热膨胀。因此，从灯的外部覆盖膜6的边界区域而使其不可见。
膜6具体可设计为使得照射特征均匀的光导膜6。
遮光片5通过圆周粘合部16安装在壳体10中的第二台阶部12上，在安装入壳体10的过程中抵抗施加至弹性安装座14上的弹簧负载效应将遮光片推入壳体。由此，膜6安装为承受支撑片7与遮光片5之间的压缩负载，从而可有效防止膜6的热诱导起泡或起皱。
图2示出了图1的剖视图所示的根据本发明的灯1的立体图。
图2特别清楚地显示了灯1的沿照射方向由遮光片5遮盖的槽形壳体10。本实施例中，一方面通过具有接头插头的侧部30以及另一方面通过不具有接头插头的侧部40来闭合细长的壳体10。沿灯1的长度方向将两个侧部30，40用螺丝钉拧入壳体10。
此外，图2清楚地显示了印于遮光片5上的屏，所述屏覆盖粘至遮光片5的边界区域的圆周向的粘合部16以及膜6的边界区域，由此从外部不可见。
图2未示出图1所示的位于壳体10下部的冷却肋条20。冷却肋条20形成在壳体10的绕整个圆周的边缘的后方，由此，从外部可观察到壳体10的闭合侧壁。
标号列表
1 灯
2 发光体（多个）
5 遮光片
6 膜
7 支撑片
10 壳体
11 第一台阶部
12 第二台阶部
14 弹性支座
16 圆周粘合部
20 冷却肋条
A 照射方向

Claims (14)

1.一种灯（1），其带有壳体（10），设于所述壳体（10）中的多个发光体（3），沿照射方向（A）闭合所述壳体（10）的遮光片（5），及用于改变所述发光体（3）的照射特征的膜（6），所述膜（6）沿所述照射方向（A）设于所述发光体（3）的前方，其特征在于，
所述膜（6）设于所述遮光片（5）与支撑片（7）之间，其中所述膜（6）与所述遮光片和所述支撑片（5，7）直接接触。
2.根据权利要求1所述的灯（1），其特征在于，
以非粘合的方式安装所述膜（6）。
3.根据前述权利要求中任一项所述的灯（1），其特征在于，
所述遮光片和所述支撑片（5，7）中至少有一个以弹性方式安装。
4.根据权利要求3所述的灯（1），其特征在于，
以弹性方式安装所述支撑片（7）。
5.根据权利要求3所述的灯（1），其特征在于，
以弹性方式安装所述遮光片（5）。
6.根据前述权利要求中任一项所述的灯（1），其特征在于，
所述支撑片（7）设于所述膜（6）的面对所述发光体（3）的一侧。
7.根据前述权利要求中任一项所述的灯（1），其特征在于，
所述支撑片（7）安装于支撑支座上。
8.根据权利要求7所述的灯（1），其特征在于，
设置至少一个固化粘性珠作为所述支撑支座。
9.根据权利要求8所述的灯（1），其特征在于，
设置两个固化粘性珠，其设于所述支撑片（7）或所述壳体（10）的相对侧壁上。
10.根据前述权利要求中任一项所述的灯（1），其特征在于，
沿所述支撑片（7）的方向在压缩负载下将所述遮光片（5）安装入所述壳体（10）。
11.根据前述权利要求中任一项所述的灯（1），其特征在于，
所述遮光片（5）与所述壳体（10）具有沿圆周方向的粘合。
12.根据前述权利要求中任一项所述的灯（1），其特征在于，
通过屏将所述膜（6）保持在中心。
13.根据权利要求1～11中任一项所述的灯（1），其特征在于，所述遮光片（5）上设有屏，尤其是印在所述遮光片（5）上。
14.根据权利要求12或13所述的灯（1），其特征在于，所述屏绕整个圆周设置。
CN201280043458.4A 2011-09-09 2012-09-06 带有照射特征改变膜的灯 Expired - Fee Related CN103782089B (zh)

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PCT/DE2012/100270 WO2013034152A1 (de) 2011-09-09 2012-09-06 Leuchte mit folie zur veränderung der abstrahlcharakteristik

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CN103782089B (zh) 2017-02-15
US20160245496A1 (en) 2016-08-25
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JP6063465B2 (ja) 2017-01-18

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