WO2010028594A1 - Led路灯透镜装置 - Google Patents

Led路灯透镜装置 Download PDF

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Publication number
WO2010028594A1
WO2010028594A1 PCT/CN2009/073828 CN2009073828W WO2010028594A1 WO 2010028594 A1 WO2010028594 A1 WO 2010028594A1 CN 2009073828 W CN2009073828 W CN 2009073828W WO 2010028594 A1 WO2010028594 A1 WO 2010028594A1
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WO
WIPO (PCT)
Prior art keywords
lens
led
convex lens
street lamp
light
Prior art date
Application number
PCT/CN2009/073828
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English (en)
French (fr)
Inventor
李镭
Original Assignee
Li Lei
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 Li Lei filed Critical Li Lei
Publication of WO2010028594A1 publication Critical patent/WO2010028594A1/zh

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Classifications

    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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]

Definitions

  • the utility model relates to a divergent light source lens device, in particular to a lens device applied in the fields of street lamps, floodlights, projection lamps and the like. Background technique
  • LED Light Emitting Diode
  • LED has the characteristics of high luminous intensity and low energy consumption. Therefore, more and more LEDs are applied to the field of street lamps to achieve energy saving.
  • the LED emits a beam of light instead of diverging light
  • a diverging lens convex lens
  • the spot after the convex lens diverges is a circular spot and is not suitable for the condition of the road surface. Since the distance between the two street lamps on the road is generally larger than the width of the road surface, a suitable street lamp should emit a flat long light spot, covering as much as possible the distance between the road surface and especially the two street lamps.
  • the LED street light source disclosed in CN1936417A and the lamp head of the high-brightness LED street lamp disclosed in CN2896006Y change the illumination direction of a part of the LED to increase the length of illumination.
  • the number of LEDs is small, such as CN1936417A, the illumination effect is not ideal, and obvious spots and blind spots will appear.
  • the number of LEDs is large, such as CN2896006Y, the energy consumed is also more, and the cost is increased. Not suitable for widespread promotion.
  • CN101251231A discloses an LED street lamp adopting a lenticular lens manner, but still However, there are obvious problems with the traces of the spots.
  • CN201074752Y A high-power LED street lamp disclosed adopts a structure of a polarizing lens, and the problem still exists that the transition effect is not good, and the problem of spot marks is not solved.
  • the high-power LED street lamp disclosed in CN201066057Y adopts a relatively complicated deflection angle design, and its design and production cost are relatively high, and is not suitable for widespread promotion as with CN2896006Y.
  • the commonly used high-power LED lamps mostly use a single lens structure, and the disadvantages are only concentrating light and not evenly dispersing the light, the spot is round, the controllability is poor, and the LED high-power light source of 1 W or more cannot be satisfied. usage of. It also needs less than 10 meters of street lights, high-rise buildings, floodlights and other high-traffic or far-reaching lights.
  • the lens device disclosed in the present invention can effectively solve the above problems. Utility model content
  • the purpose of the utility model is to provide an LED street lamp lens device, which adopts a lens group to realize uniform light divergence, and overcomes the problems of attenuation and uneven spot when the common street lamp source is diverged.
  • An LED street lamp lens device comprises an LED lamp, a convex lens, a casing and a bracket fixed inside the casing, wherein the LED lamp is located at a bottom side of the casing, and the LED lamp is fixed on the radiator and closely connected with the radiator.
  • the convex lens is located at the front end of the LED lamp, and the convex lens is fixed on the bracket, and further comprises an arc lens.
  • the curved lens has a semi-cylindrical shape and is located outside the convex lens.
  • the use of a curved lens allows for a smooth transition while increasing the illumination area. Effectively control the light decay, improve the effective luminosity of the LED light source, increase the optical path of the LED light source, and make the light shine farther.
  • the utility model has the advantages that the controllability of the LED light source is increased, and the light spot of the lamp is long oval or diamond shaped, which enlarges the effective illumination area of the light, and the utility model has the purpose of diverging compared with the traditional street lamp relying on the refraction reflection of the lamp. The new divergence effect is better, and the uniformity of the spot is good, without obvious shadow light and markings.
  • Figure 1 is a front structural view of an embodiment of the present invention
  • Figure 2 is a schematic cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a schematic cross-sectional view taken along line B-B of Figure 1.
  • the LED street lamp lens device of the present invention comprises an LED lamp 1, a convex lens 2, a casing 3 and a bracket 4 fixed inside the casing 3.
  • the LED lamp 1 is located in the casing 3.
  • the inner side of the LED lamp 1 is fixed on the heat sink and is closely connected to the heat sink.
  • the convex lens 2 is located at the front end of the LED lamp 1.
  • the convex lens 2 is fixed on the bracket 4, and the curved lens 5 is also included.
  • the mirror is semi-cylindrical and is located outside the convex lens 2.
  • the convex lens 2 adopts a lenticular lens, and geometric centers of the LED lamp 1, the convex lens 2 and the curved lens 5 are located on the same straight line, and the three are parallel to each other.
  • the two curved surfaces on the lenticular lens 2 can adjust the intensity of light emission by different convex curvatures, and the curved lens 5 can be used to adjust the spot shape of the illuminated surface.
  • the illumination principle of the LED street lamp lens device of the present invention is: the light emitted by the LED lamp 1 is irradiated to the center of the convex lens 2, and the convex lens 2 refracts the incident light to form a circular divergent light, and the circular divergent light
  • the plane of the curved lens 5 is irradiated.
  • a convex lens is used to further diverge the light, and in the longitudinal direction of the curved lens 5, a plurality of flat lenses having different thicknesses are not diverge, and the incident light does not have a diverging effect.
  • the effect of the lateral divergence of the longitudinal divergence is formed, thereby forming a long elliptical or diamond-shaped divergent light, which can better illuminate the longitudinal direction of the road surface in the case of laterally adapting the width of the road surface.
  • the transition effect is smooth and stable, and the street lamp adopting the reflective structure can effectively reduce the light decay, improve the effective illuminance of the light source, and increase the light of the light source.
  • the process of illuminating the light further increases the effective illumination area of the light.
  • high-power LED street lamps are subject to structural constraints, and all use synthetic transparent materials as lenses. Due to the influence of light and temperature, they are easily aging and affect light transmission, which is one of the important factors that cause the illuminance value of lamps to decrease.
  • This lens can be made with K9 glass material. It has long life, anti-aging, corrosion resistance and stability.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

技术领域
本实用新型涉及一种发散光源透镜装置， 特别是一种应用在路 灯、 泛光灯、 投射灯等领域的透镜装置。 背景技术
LED (发光二极管） 具有发光强度高， 耗能少的特点， 所以目前 越来越多的将 LED应用到路灯领域， 以达到节能的目的。
但是由于 LED所发出的是一束光而不是发散光，所以为了适应路 面的状况， 一般需要在 LED 前加设一个发散透镜 （凸透镜）， 如 CN201016464Y公开的 LED路灯。 但是经过凸透镜发散后的光斑是一 个圆形的光斑， 不适合路面的状况。 由于路面两个路灯之间的距离一 般要比路面的宽度更大， 所以比较适合的路灯应该是发出扁长形光 斑， 尽可能地覆盖路面特别是两个路灯之间的距离。
所以为了提供相对更长的照射长度， CN1936417A公开的 LED路 灯光源和 CN2896006Y公开的高亮度 LED路灯的灯头，改变了部分 LED 的照射方向以加大照射的长度。 但是如果 LED 数量较少的话， 如 CN1936417A, 其照射效果不理想， 会出现明显的光斑和盲点， 而如果 LED数量较多的话， 如 CN2896006Y, 所消耗的能量也较多， 并造成成 本的提高， 不适合广泛推广。
CN101251231A公开的一种 LED路灯采用双凸透镜的方式， 但仍 然存在光斑痕迹明显的问题。 CN201074752Y 公开的一种大功率 LED 路灯采用偏光透镜的结构， 而其存在的问题仍然是过渡效果不好， 没 有解决光斑痕迹的问题。
CN201066057Y公开的大功率 LED路灯， 采用了比较复杂的偏转 角度设计， 其设计和生产成本都比较高， 同 CN2896006Y—样不适于 广泛推广。
所以综上所述， 目前常用的大功率 LED 灯多采用单一的透镜结 构， 其缺点只是聚光而不能将光均匀分散， 光斑呈圆形， 可控性差， 亦不能满足 1W以上 LED大功率光源的使用。更达不到 10米以上路灯、 高层楼寓泛光灯等光程较高或较远灯的需要。本实用新型公开的透镜 装置可以有效解决上述问题。 实用新型内容
本实用新型的目的是提供一种 LED路灯透镜装置，采用一个透镜 组实现光的均匀发散，克服常用路灯光源发散时存在衰减以及光斑不 均匀的问题。
本实用新型的目的是通过以下技术方案来实现：
一种 LED路灯透镜装置， 包括 LED灯、 凸透镜、 壳体和固定在壳 体内部的支架， 所述 LED灯位于壳体内部底侧， LED灯固定在散热器 上并与散热器紧密连接， 所述凸透镜位于 LED灯的前端， 凸透镜固定 在支架上， 还包弧形透镜， 所述弧形透镜呈半圆柱状， 位于凸透镜的 外侧。
采用弧形透镜可以在增大照射面积的同时， 实现平稳的过渡， 有 效地控制了光衰， 提高了 LED光源的有效发光率， 增大了 LED光源的 光程， 使灯光照得更远。其优点还在于增加了 LED光源的可控性， 使 灯的光斑呈长椭圆形或菱形， 扩大了灯光的有效照射面积， 相比于传 统路灯依靠灯具的折射反射所要达到发散的目的，本实用新型的发散 效果更好， 并且光斑的均匀性好， 无明显阴影光和斑紋。 附图说明
下面根据附图和实施例对本实用新型作进一步详细说明。
图 1是本实用新型实施例的正面结构图；
图 2是图 1中 A-A截面示意图；
图 3是图 1中 B-B截面示意图。
图中：
1、 LED灯； 2、 凸透镜； 3、 壳体； 4、 支架； 5、 弧形透镜。 具体实施方式
如图 1-3所示， 本实用新型所述的 LED路灯透镜装置， 包括 LED 灯 1、 凸透镜 2、 壳体 3和固定在壳体 3内部的支架 4， 所述 LED灯 1 位于壳体 3内部底侧， LED灯 1固定在散热器上并与散热器紧密连接， 所述凸透镜 2位于 LED灯 1的前端， 凸透镜 2固定在支架 4上， 还包 弧形透镜 5， 所述弧形透 5镜呈半圆柱状， 位于凸透镜 2的外侧。 优 选的， 所述的凸透镜 2采用双面凸透镜， 并且 LED灯 1、 凸透镜 2和 弧形透镜 5的几何中心位于同一直线上， 并且三者相互平行。双面凸 透镜 2上的两个曲面可通过凸起弧度不同调节光射出的强度，弧形透 镜 5可用来调节被照射面的光斑形态。 本实用新型所述的 LED路灯透镜装置的发光原理是： LED灯 1发 射出的光线照射到凸透镜 2的中心，凸透镜 2对入射光线折射后形成 一束圆形的发散光， 圆形的发散光照射到弧形透镜 5的平面。在弧形 透镜 5的横向相当于一个凸透镜， 对光线进行进一步发散， 在弧形透 镜 5的纵向相当于若干个薄厚不等的平面透镜，对入射光线不起发散 作用。这样就形成了横向进一步发散纵向发散程度不变的效果， 从而 形成了长椭圆或者菱形的发散光， 可以在横向适应路面宽度的情况 下， 更好的对路面的纵向进行照射。
而由于本装置的发散采用弧形的透镜 5来实现，过渡效果平缓稳 定， 相比较那些采用反射结构的路灯， 可以有效的减小光衰， 提高光 源的有效发光率， 增大了光源的光程， 使灯光照射的更远， 从而扩大 了灯光的有效照射面积。
目前， 大功率 LED路灯受结构制约， 均采用合成透明材料做透镜， 因 光照和温度的影响， 极易老化， 影响透光， 是造成灯照度值降低的重 要因素之一。本透镜可使用 K9玻璃材料制作透镜其寿命长、抗老化、 耐腐蚀、 稳

Claims

权利 要 求 书
1、 一种 LED路灯透镜装置， 包括 LED灯、 凸透镜、 壳体和固定 在壳体内部的支架， 所述 LED灯位于壳体内部底侧， 凸透镜固定在支 架上， 其特征在于， 还包弧形透镜， 所述弧形透镜呈半圆柱状， 位于 凸透镜的外侧， 所述凸透镜位于 LED灯的前端。
2、 根据权利要求 1所述的 LED路灯透镜装置， 其特征在于， 所 述凸透镜为双面凸透镜。
3、根据权利要求 1或 2所述的 LED路灯透镜装置， 其特征在于， LED灯、 凸透镜和弧形透镜的几何中心位于同一直线上， 并且三者相 互平行。
PCT/CN2009/073828 2008-09-11 2009-09-09 Led路灯透镜装置 WO2010028594A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2008201365050U CN201259147Y (zh) 2008-09-11 2008-09-11 Led路灯透镜装置
CN200820136505.0 2008-09-11

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WO2010028594A1 true WO2010028594A1 (zh) 2010-03-18

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201259147Y (zh) * 2008-09-11 2009-06-17 李镭 Led路灯透镜装置
CN101915383A (zh) * 2010-08-24 2010-12-15 李镭 用于高速公路的led光源路灯
CN202056619U (zh) * 2011-05-26 2011-11-30 佛山市开信光电有限公司 一种带有多芯集成平面led光源的投射灯
CN102679221A (zh) * 2012-05-17 2012-09-19 长春长光奥立红外技术有限公司 内聚焦式可变发光角度照明系统

Citations (7)

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US20070195541A1 (en) * 2006-02-17 2007-08-23 Automotive Lighting Reutlingen Gmbh Illumination device
US20070291484A1 (en) * 2006-06-14 2007-12-20 Young Optics Inc. Illumination system and projection apparatus
CN101105272A (zh) * 2007-02-12 2008-01-16 吴娟 Led路灯及其透镜
CN101105271A (zh) * 2007-08-09 2008-01-16 复旦大学 一种形成矩形光斑的led路灯装置
CN201016464Y (zh) * 2007-01-12 2008-02-06 孙亚东 Led路灯
CN201180933Y (zh) * 2008-03-13 2009-01-14 鹤山丽得电子实业有限公司 汽车前照灯
CN201259147Y (zh) * 2008-09-11 2009-06-17 李镭 Led路灯透镜装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070195541A1 (en) * 2006-02-17 2007-08-23 Automotive Lighting Reutlingen Gmbh Illumination device
US20070291484A1 (en) * 2006-06-14 2007-12-20 Young Optics Inc. Illumination system and projection apparatus
CN201016464Y (zh) * 2007-01-12 2008-02-06 孙亚东 Led路灯
CN101105272A (zh) * 2007-02-12 2008-01-16 吴娟 Led路灯及其透镜
CN101105271A (zh) * 2007-08-09 2008-01-16 复旦大学 一种形成矩形光斑的led路灯装置
CN201180933Y (zh) * 2008-03-13 2009-01-14 鹤山丽得电子实业有限公司 汽车前照灯
CN201259147Y (zh) * 2008-09-11 2009-06-17 李镭 Led路灯透镜装置

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