WO2009049475A1 - An optical lens - Google Patents

An optical lens Download PDF

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Publication number
WO2009049475A1
WO2009049475A1 PCT/CN2008/001631 CN2008001631W WO2009049475A1 WO 2009049475 A1 WO2009049475 A1 WO 2009049475A1 CN 2008001631 W CN2008001631 W CN 2008001631W WO 2009049475 A1 WO2009049475 A1 WO 2009049475A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
light
present
optical lens
aspect ratio
Prior art date
Application number
PCT/CN2008/001631
Other languages
French (fr)
Chinese (zh)
Inventor
Zhengfang Cao
Baoping Fan
Congqing Xiao
Ning Yang
Original Assignee
Shenzhen Jiuzhou Optoelectronics Co., Ltd
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 Shenzhen Jiuzhou Optoelectronics Co., Ltd filed Critical Shenzhen Jiuzhou Optoelectronics Co., Ltd
Publication of WO2009049475A1 publication Critical patent/WO2009049475A1/en

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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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • 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
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses

Definitions

  • the present invention relates to the field of optics, and in particular to an optical lens, and more particularly to a lens capable of shifting a direction of propagation of a light source and generating a spot having an aspect ratio of 2:1, the lens being mainly used for street lighting, In order to improve the lighting utilization rate of the lamps, it is safe to drive at night.
  • the current traffic road lighting design usually adopts the light distribution curve of the conventional light source to have a wide-angle circumferential normal distribution.
  • most of the road lighting design adopts single-sided illumination, which will cause the local light source to be wasted where there is no need for illumination, but the road direction.
  • the street light spacing is 3 times higher than the light, it creates a dark area where some light sources cannot be illuminated. This not only causes waste of energy, but also brings great inconvenience to night driving, creating safety hazards.
  • an object of the present invention is to provide an optical lens that is mounted on the outside of a street light source, and optically processes the light emitted by the street light source through the lens to shift the direction of propagation to improve the lamp. Lighting utilization, to ensure the safety of driving at night.
  • the present invention is mainly achieved by the following technical solutions:
  • the aspect ratio of the rectangle on the lens is 2:1.
  • the light emitting chip and the lens are packaged as a whole.
  • the lens in the present invention is a rectangular shape with rounded corners, which is mounted on the light-emitting chip, wherein the lens has an anti-reflection film on the rectangular surface, and the other surface of the lens and the light-emitting chip are provided with a reflective film, when the light source emits light. When the light is diverging around, it is reflected after encountering the reflective film. After multiple reflections, it is finally emitted by the anti-reflection film on the rectangular surface of the lens.
  • the invention adopts a special structural design of the lens to make the light more concentrated and avoid waste. , effectively improve the utilization of light.
  • Figure 1 is a perspective view of a lens of the present invention.
  • FIG. 2 is a schematic view showing the structure of a lens of the present invention.
  • Figure 3 is a side view of the lens of the present invention.
  • Fig. 4 is a schematic view showing the state in which light rays are emitted from a lens of the present invention.
  • the core idea of the present invention is: mounting an optical lens having a special structure on a light source, wherein the lens is a rectangular rectangle having an aspect ratio of 2:1, which is mounted on a light-emitting wafer, wherein the lens An anti-reflection film is provided on the rectangular surface. Since the rectangular aspect ratio of the lens is 2:1, the height of the half-light flux of the horizontal and vertical axes of the light distribution curve of the light source can be ensured by adjusting the height between the lens and the light-emitting chip. :1.
  • the lens 1 of the present invention is fixedly mounted on the illuminating wafer 2, and the illuminating wafer 2 is located on the fixing base 3, and the illuminating light source is disposed on the fixing base 3.
  • the lens 1 is mounted above the light-emitting wafer 2, and has a rounded rectangle having an aspect ratio of 2:1, and an anti-reflection film 101 is provided on the rectangular surface.
  • the lens 1 is connected to the fixing base 3, and a cavity is formed between the lens 1 and the illuminating wafer 2.
  • the illuminating wafer 2 is mounted and fixed on the fixing base 3 and is in the cavity. Potting with high temperature resistant silicone to reduce multiple reflections of light in the cavity, directly refracting through the lens.
  • the antireflection film 101 is provided on the rectangular light-emitting surface of the rounded corner directly above the light-emitting chip, the emitted light 5 is brighter.
  • the rectangle with rounded corners maintains a certain slope with the horizontal plane, and the light is deflected by the refraction of the light.
  • the lens of the present invention can shift the direction of propagation of light, and can generate a light spot with an aspect ratio of 2:1 according to the aspect ratio of the rectangle, so that between adjacent spots There is no shadow, and a bright illumination strip can be formed on the road surface, thus conforming to the lighting design of the current traffic road, and also improving the lighting utilization of the lamp.
  • optical lens provided by the present invention has been described in detail above, and the principles and embodiments of the present invention are described herein by using specific examples. The description of the above embodiments is only for helping to understand the method and core of the present invention. The present invention is not limited by the scope of the present invention, and the description of the present invention is not limited to the scope of the present invention.
  • the lens of the present invention can shift the direction of light propagation, and can generate a light spot with an aspect ratio of 2:1 according to the aspect ratio of the rectangle, so that no shadow appears between the adjacent spots.
  • a bright illumination strip is formed on the road surface, thus conforming to the lighting design of the current traffic road, and also improving the lighting utilization rate of the lamp.

Landscapes

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

Abstract

An optical lens (1) has the shape of rectangle with rounded corners, wherein an antireflection film (101) is provided on the rectangular surface of the lens (1). The lens (1) can be mounted on a light-emitting chip (2).

Description

一种光学透镜 技术领域  Optical lens
本发明涉及光学领域， 具体涉及一种光学透镜， 更具体的是一种能够 使光源的传播方向发生偏移并生成长宽比为 2:1的光斑的透镜，该透镜主要 应用于路灯照明， 以提高灯具的照明利用率， 从而保证夜间行车安全。  The present invention relates to the field of optics, and in particular to an optical lens, and more particularly to a lens capable of shifting a direction of propagation of a light source and generating a spot having an aspect ratio of 2:1, the lens being mainly used for street lighting, In order to improve the lighting utilization rate of the lamps, it is safe to drive at night.
背景技术 Background technique
现在的交通道路照明设计通常采用常规光源的配光曲线呈广角度圆周 正态分布， 而现在道路照明设计大都采用单侧照明， 这样就会造成局部光 源浪费在不需要照明的地方， 可是道路方向因为路灯间距是 3 倍于灯高， 从而造成有些光源无法照明的黑暗地带。 这不仅造成能源的浪费， 也给夜 间行驶带来很大的不便， 产生安全隐患。  The current traffic road lighting design usually adopts the light distribution curve of the conventional light source to have a wide-angle circumferential normal distribution. Nowadays, most of the road lighting design adopts single-sided illumination, which will cause the local light source to be wasted where there is no need for illumination, but the road direction Because the street light spacing is 3 times higher than the light, it creates a dark area where some light sources cannot be illuminated. This not only causes waste of energy, but also brings great inconvenience to night driving, creating safety hazards.
发明内容 Summary of the invention
为解决上述问题， 本发明的目的在于提供一种光学透镜， 安装在路灯 发光光源外侧， 通过该透镜对路灯发光光源发出的光进行光学处理， 使其 传播方向发生偏移， 以达到提高灯具的照明利用率， 保证夜间行车安全的 目的。  In order to solve the above problems, an object of the present invention is to provide an optical lens that is mounted on the outside of a street light source, and optically processes the light emitted by the street light source through the lens to shift the direction of propagation to improve the lamp. Lighting utilization, to ensure the safety of driving at night.
为实现上述目的， 本发明主要通过以下技术方案实现的：  To achieve the above object, the present invention is mainly achieved by the following technical solutions:
一种光学透镜， 固定安装在发光晶片上， 其中该透镜为带圆角的矩形， 且所述矩形面上设有增透膜。  An optical lens fixedly mounted on a light-emitting wafer, wherein the lens is a rectangular shape with rounded corners, and an anti-reflection film is disposed on the rectangular surface.
其中所述透镜上矩形的长宽比为 2:1。 其中所述发光晶片和透镜可封装为一整体。 本发明中的透镜为一个带圆角的矩形， 它安装在发光晶片上， 其中所 述透镜矩形面上设有增透膜， 而透镜其他面以及发光晶片上则设置有反光 膜， 当光源发光时， 光线向四周发散， 遇到反光膜后则被反射， 经过多次 反射后最终由透镜矩形面上的增透膜发射出去， 本发明通过透镜特殊的结 构设计， 使光线更加集中， 避免浪费， 有效的提高了光的利用率。 Wherein the aspect ratio of the rectangle on the lens is 2:1. Wherein the light emitting chip and the lens are packaged as a whole. The lens in the present invention is a rectangular shape with rounded corners, which is mounted on the light-emitting chip, wherein the lens has an anti-reflection film on the rectangular surface, and the other surface of the lens and the light-emitting chip are provided with a reflective film, when the light source emits light. When the light is diverging around, it is reflected after encountering the reflective film. After multiple reflections, it is finally emitted by the anti-reflection film on the rectangular surface of the lens. The invention adopts a special structural design of the lens to make the light more concentrated and avoid waste. , effectively improve the utilization of light.
附图说明 DRAWINGS
图 1为本发明透镜立体示意图。  Figure 1 is a perspective view of a lens of the present invention.
图 2为本发明透镜结构示意图。  2 is a schematic view showing the structure of a lens of the present invention.
图 3为本发明透镜侧视图。  Figure 3 is a side view of the lens of the present invention.
图 4为本发明光线由透镜出射状态示意图。  Fig. 4 is a schematic view showing the state in which light rays are emitted from a lens of the present invention.
具体实施方式 detailed description
本发明的核心思想是： 在发光光源上安装具有特殊结构的光学透镜， 其中该透镜的为一个长宽比为 2: 1的带圆角的矩形， 它安装在发光晶片上， 其中所述透镜矩形面上设有增透膜， 由于透镜上矩形长宽比为 2:1， 因此通 过调整透镜与发光晶片之间的高度可以以保证光源的配光曲线横纵轴的半 光通量全角也接近 2:1。  The core idea of the present invention is: mounting an optical lens having a special structure on a light source, wherein the lens is a rectangular rectangle having an aspect ratio of 2:1, which is mounted on a light-emitting wafer, wherein the lens An anti-reflection film is provided on the rectangular surface. Since the rectangular aspect ratio of the lens is 2:1, the height of the half-light flux of the horizontal and vertical axes of the light distribution curve of the light source can be ensured by adjusting the height between the lens and the light-emitting chip. :1.
下面将结合附图和具体实施例对本发明做进一步详细说明。  The invention will be further described in detail below with reference to the drawings and specific embodiments.
请参见图 1，本发明所述的透镜 1固定安装在发光晶片 2上方， 而发光 晶片 2则位于固定座 3上， 在固定座 3上设置有发光光源。  Referring to Fig. 1, the lens 1 of the present invention is fixedly mounted on the illuminating wafer 2, and the illuminating wafer 2 is located on the fixing base 3, and the illuminating light source is disposed on the fixing base 3.
如图 2所示， 透镜 1安装在发光晶片 2上方， 其顶部为一个长宽比为 2: 1的带圆角的矩形， 该矩形面上设有增透膜 101。  As shown in Fig. 2, the lens 1 is mounted above the light-emitting wafer 2, and has a rounded rectangle having an aspect ratio of 2:1, and an anti-reflection film 101 is provided on the rectangular surface.
如图 3所示， 透镜 1与固定座 3相连接， 且与发光晶片 2之间形成一 个空腔， 发光晶片 2安装固定在固定座 3上并处于该空腔中， 该空腔应该 用耐高温硅胶灌封， 以减少光线在空腔中的多次反射， 直接通过透镜折射 出去。 As shown in FIG. 3, the lens 1 is connected to the fixing base 3, and a cavity is formed between the lens 1 and the illuminating wafer 2. The illuminating wafer 2 is mounted and fixed on the fixing base 3 and is in the cavity. Potting with high temperature resistant silicone to reduce multiple reflections of light in the cavity, directly refracting through the lens.
如图 4所示， 由于位于发光晶片正上方的带圆角的矩形出光面上设有 增透膜 101， 发出的光线 5则较为明亮。而此带圆角的矩形与水平面保持一 定的斜度， 通过光线的折射成为达到光线偏移的目的。  As shown in Fig. 4, since the antireflection film 101 is provided on the rectangular light-emitting surface of the rounded corner directly above the light-emitting chip, the emitted light 5 is brighter. The rectangle with rounded corners maintains a certain slope with the horizontal plane, and the light is deflected by the refraction of the light.
由以上可以看出， 本发明所述的透镜， 可以使光线的传播方向发生偏 移， 而且根据矩形的长宽比可以产生长宽比为 2:1的光斑， 这样相邻的光斑 之间则不会出现阴影， 可以在路面上形成一条明亮的照明光带， 因而符合 现在的交通道路的照明设计， 而且还提高了灯具的照明利用率。  It can be seen from the above that the lens of the present invention can shift the direction of propagation of light, and can generate a light spot with an aspect ratio of 2:1 according to the aspect ratio of the rectangle, so that between adjacent spots There is no shadow, and a bright illumination strip can be formed on the road surface, thus conforming to the lighting design of the current traffic road, and also improving the lighting utilization of the lamp.
以上对本发明所提供的一种光学透镜进行了详细介绍， 本文中应用了 具体个例对本发明的原理及实施方式进行了阐述， 以上实施例的说明只是 用于帮助理解本发明的方法及其核心思想； 同时， 对于本领域的一般技术 人员， 依据本发明的思想， 在具体实施方式及应用范围上均会有改变之处， 综上所述， 本说明书内容不应理解为对本发明的限制。  The optical lens provided by the present invention has been described in detail above, and the principles and embodiments of the present invention are described herein by using specific examples. The description of the above embodiments is only for helping to understand the method and core of the present invention. The present invention is not limited by the scope of the present invention, and the description of the present invention is not limited to the scope of the present invention.
工业应用性 Industrial applicability
本发明所述的透镜， 可以使光线的传播方向发生偏移， 而且根据矩形 的长宽比可以产生长宽比为 2:1的光斑，这样相邻的光斑之间则不会出现阴 影， 可以在路面上形成一条明亮的照明光带， 因而符合现在的交通道路的 照明设计， 而且还提高了灯具的照明利用率。  The lens of the present invention can shift the direction of light propagation, and can generate a light spot with an aspect ratio of 2:1 according to the aspect ratio of the rectangle, so that no shadow appears between the adjacent spots. A bright illumination strip is formed on the road surface, thus conforming to the lighting design of the current traffic road, and also improving the lighting utilization rate of the lamp.

Claims

权利要求书 Claim
1、 一种光学透镜， 固定安装在发光晶片 （2) 上， 其特征在于： 该透 镜 （1) 为带圆角的矩形， 且^ 1述矩形面上设有增透膜 （101)。 1, an optical lens, a light emitting fixedly mounted on the wafer (2), characterized in that: the lens (1) is rectangular with rounded corners, and with ^ AR coating (101) one of said rectangular surface.
2、 根据权利要求 1 所述的光学透镜， 其特征在于： 所述透镜 （1) 上 矩形的长宽比为 2:1。  The optical lens according to claim 1, characterized in that the aspect ratio of the rectangle on the lens (1) is 2:1.
3、 根据权利要求 1所述的光学透镜， 其特征在于： 所述发光晶片 （2) 和透镜 （1) 可封装为一整体。  3. Optical lens according to claim 1, characterized in that the illuminating wafer (2) and the lens (1) are packaged as one piece.
PCT/CN2008/001631 2007-09-24 2008-09-19 An optical lens WO2009049475A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710077238.4 2007-09-24
CNA2007100772384A CN101398492A (en) 2007-09-24 2007-09-24 Optical lens

Publications (1)

Publication Number Publication Date
WO2009049475A1 true WO2009049475A1 (en) 2009-04-23

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Application Number Title Priority Date Filing Date
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Country Status (2)

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WO (1) WO2009049475A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865417B (en) * 2009-04-14 2013-06-05 富准精密工业(深圳)有限公司 Luminous assembly
CN103453338A (en) * 2012-05-31 2013-12-18 台达电子工业股份有限公司 Lens element used for light source module and illuminating lamp
CN105240758A (en) * 2015-11-17 2016-01-13 江苏永信光学仪器有限公司 Led lamp

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CN2426640Y (en) * 2000-05-19 2001-04-11 张开开 Directional light high-efficiency LED
CN2481961Y (en) * 2001-03-27 2002-03-13 上海康耐司信号设备有限公司 High-brightness luminophor structure
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JP2004233788A (en) * 2003-01-31 2004-08-19 Matsushita Electric Ind Co Ltd Light emitting device
JP2007035427A (en) * 2005-07-26 2007-02-08 Matsushita Electric Works Ltd Light emitting device
CN1996624A (en) * 2006-01-04 2007-07-11 *** Light-emitting diode-LED and its encapsulation method and application
CN2938410Y (en) * 2006-01-04 2007-08-22 *** LED and luminous device, lamp, display screen and luminous ornament
US20070211485A1 (en) * 2006-03-07 2007-09-13 Valeo Vision Optical module for a motor vehicle headlight provided with an optical deviation element
CN101067663A (en) * 2007-06-15 2007-11-07 清华大学 Lens used for LED light source
CN101230968A (en) * 2008-01-23 2008-07-30 生茂光电科技股份有限公司 Lens for LED light source package

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305585A1 (en) * 1991-08-31 1994-08-25 Hella Kg Hueck & Co Signal luminaire for motor vehicles
CN2426640Y (en) * 2000-05-19 2001-04-11 张开开 Directional light high-efficiency LED
US20020135280A1 (en) * 2001-03-23 2002-09-26 Hitoshi Taniuchi Projector type lamp
CN2481961Y (en) * 2001-03-27 2002-03-13 上海康耐司信号设备有限公司 High-brightness luminophor structure
JP2004233788A (en) * 2003-01-31 2004-08-19 Matsushita Electric Ind Co Ltd Light emitting device
JP2007035427A (en) * 2005-07-26 2007-02-08 Matsushita Electric Works Ltd Light emitting device
CN1996624A (en) * 2006-01-04 2007-07-11 *** Light-emitting diode-LED and its encapsulation method and application
CN2938410Y (en) * 2006-01-04 2007-08-22 *** LED and luminous device, lamp, display screen and luminous ornament
US20070211485A1 (en) * 2006-03-07 2007-09-13 Valeo Vision Optical module for a motor vehicle headlight provided with an optical deviation element
CN101067663A (en) * 2007-06-15 2007-11-07 清华大学 Lens used for LED light source
CN101230968A (en) * 2008-01-23 2008-07-30 生茂光电科技股份有限公司 Lens for LED light source package

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