WO2013053197A1 - 具反射装置的发光二极管灯具 - Google Patents

具反射装置的发光二极管灯具 Download PDF

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Publication number
WO2013053197A1
WO2013053197A1 PCT/CN2012/001317 CN2012001317W WO2013053197A1 WO 2013053197 A1 WO2013053197 A1 WO 2013053197A1 CN 2012001317 W CN2012001317 W CN 2012001317W WO 2013053197 A1 WO2013053197 A1 WO 2013053197A1
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WIPO (PCT)
Prior art keywords
light
substrate
reflecting
reflecting device
lamp
Prior art date
Application number
PCT/CN2012/001317
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English (en)
French (fr)
Inventor
陈烱勋
Original Assignee
Chen Jeong-Shiun
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 Chen Jeong-Shiun filed Critical Chen Jeong-Shiun
Publication of WO2013053197A1 publication Critical patent/WO2013053197A1/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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
    • 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 present invention relates to an LED lamp, and more particularly to a reflecting device that produces lateral astigmatism. Background technique
  • LED lamps have been widely used in the field of lighting devices and gradually replaced traditional lighting, such as incandescent lamps.
  • traditional lighting such as incandescent lamps.
  • the prior art generally requires the addition of additional light distribution means to enhance the sidelights, while matching the shades Block the direct illumination of the part to meet the requirements of the opposite side of the light.
  • the light distribution device has a complicated geometric configuration, thereby generating desired side light, such as a multilayer reflective surface structure having a special reflective layer, thereby not only adding materials, but also adding additional manufacturing processes. , affecting the yield of the product and the reliability of the actual operation. Accordingly, there is a need for an LED luminaire having a reflective device that utilizes a relatively simple reflective device to address the above-discussed prior art problems. Summary of the invention
  • the main object of the present invention is to provide a light-emitting diode lamp with a reflecting device, comprising a substrate, at least one light-emitting diode chip, a reflecting device, a lamp cover, a lamp housing and a joint, wherein at least one light-emitting diode chip and a reflecting device are disposed on the substrate,
  • the reflective device is located near or in the center of the substrate, and the LED chips are distributed around the reflecting device.
  • the lamp cover covers the substrate, the LED chip and the reflecting device, and the edge of the lamp cover connects the outer edge of the substrate to form a closed space and provide isolation protection. In effect, the edge of the lamp cover further connects the lamp housing, and the lamp housing further connects the connector.
  • the reflecting device has a downwardly reflecting surface, such as a single concave surface or a plane or a plurality of concave surfaces or planes having different reflection angles, and the original emitted light emitted by the LED chip can be reflected obliquely downward through the reflecting surface of the reflecting device.
  • Sidelight and penetrate the lampshade. Therefore, the LED lamp of the present invention can provide oblique downward light by means of a reflecting device, and is very suitable for an application field that does not need to directly illuminate light but only needs to slant downward side light, for example, using a top shield to block direct upward illumination.
  • FIG. 1 is a schematic view showing an LED lamp with a reflecting device of the present invention
  • FIG. 2 is a schematic view showing an LED lamp with a reflecting device according to another embodiment of the present invention. detailed description
  • FIG. 1 is a schematic view of an LED lamp with a reflecting device according to the present invention. As shown
  • the LED lamp of the present invention comprises a substrate 10, at least one light emitting diode (LED) chip 20, a reflecting device 30, a lamp cover 40, a lamp housing and a joint (wherein the lamp housing and the joint are not shown).
  • the LED chip 20 and the reflecting device 30 are disposed on the substrate 10, and the reflecting device 30 is located near or at the center of the substrate 10, and the LED chip 20 is evenly distributed around the reflecting device 30.
  • the lampshade 40 is light transmissive and covers the substrate 10, the LED chip 20 and the reflecting device 30, and the lampshade
  • the edge of 40 joins the outer edge of substrate 10 to form a closed space providing isolation protection. Further, the edge of the lamp cover 40 is further coupled to the lamp housing, and the lamp housing is further coupled to the connector, and the connector and the lamp cover 40 are located on opposite sides of the lamp housing, wherein the connector is electrically connected to the LED chip 20 on the substrate 10. Therefore, the lampshade 40, the lamp housing and the joint form an overall appearance.
  • the connector is connected to an external power source (not shown) for driving the LED chip 20 to produce the original emitted light L1.
  • the surface of the reflecting device 30 has a reflective layer for reflecting light, and the reflecting device 30 has a downwardly reflecting surface, such as a reflective concave surface in the drawing, and the original emitted light L1 emitted by the LED chip 20 can pass through the reflecting device 30. After the reflecting surface reflects, the oblique downward side light L2 is formed and penetrates the lamp cover 40.
  • the reflecting surface of the reflecting means 30 may further have a plurality of concave circular holes or a plurality of pyramidal lower concave surfaces for enhancing the function of oblique downward reflection.
  • the reflecting device 30 of Fig. 1 may also have a plurality of reflecting surfaces (not shown) for elastically adjusting the angular range of the oblique downward side light L2.
  • the top region of the lampshade 40 can be coated with a reflective layer (not shown) to reflect the original emitted light L1 of the LED chip 20 upward, thereby blocking the upwardly directed original emitted light L1, and only reflected.
  • the obliquely downward side light L2 of the device 30 can penetrate the globe 40.
  • FIG. 2 is a schematic illustration of another embodiment of the present invention.
  • this embodiment The LED luminaire is similar to the embodiment of Fig. 1.
  • the reflecting device 32 of Fig. 2 has a plurality of plane reflecting surfaces with different reflection angles, instead of concave surfaces, and the remaining components are the same, and therefore will not be described again.
  • each of the reflecting surfaces described above may further have a plurality of concave circular holes or a plurality of pyramidal lower concave surfaces.
  • the LED lamp of the present invention is characterized in that the reflective device can be used to provide oblique downward side light, which is very suitable for applications that do not need to directly illuminate the light directly but only need to slant downward side light, such as using a top shield to block the Park trail lights, indoor mood lights or lighting that directly illuminate the light.

Landscapes

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

Abstract

一种具反射装置的发光二极管灯具，包括基板（10）、至少一发光二极管芯片（20）、反射装置（30）、灯罩（40）、灯壳以及接头。发光二极管芯片（20）及反射装置（30）安置在基板（10）上，且反射装置（30）靠近或位于基板（10）的中央，发光二极管芯片（20）均匀分布在反射装置（30）周围。灯罩覆盖基板（10）、发光二极管芯片（20）及反射装置（30），且灯罩的边缘连接基板（10）的外缘，由此形成封闭空间，提供隔绝保护作用。灯罩的边缘再连接灯壳，灯壳进一步连接接头。反射装置（30）具有斜向下的反射面，可反射发光二极管芯片（20）发射的原始光以形成斜向下侧光，并穿透灯罩（40），适合不需要直接照射光而需要加强侧光的情形。

Description

具反射装置的发光二极管灯具
技术领域
本发明涉及一种发光二极管灯具， 尤其是具有产生侧向散光的反射装 置。 背景技术
随着节能减碳的环保风潮的日益风行， 发光二极管灯具己广泛的被应用 于照明装置领域， 并逐步取代传统照明， 比如白炽灯。 对于需要侧光而非直 接发射光的特定应用领域， 比如公园步道灯或餐桌灯， 由于发光二极管本身 为点光源， 因此现有技术一般需要增加额外的配光装置以加强侧光， 同时配 合灯罩阻挡部分的直接照射光， 以满足对侧光的要求。
然而， 现有技术的缺点在于配光装置具有复杂的几何构造， 藉以产生所 需侧光， 比如具有特殊反射层的多层状反射面结构， 因此不仅增加材料， 而 且还需增加额外的制造工序， 影响产品的良率及实际操作使用上的可靠度。 因此， 需要一种具反射装置的发光二极管灯具， 利用构造简单的反射装置， 以解决上述现有技术的问题。 发明内容
本发明的主要目的在于提供一种具反射装置的发光二极管灯具， 包括基 板、 至少一发光二极管芯片、 反射装置、 灯罩、 灯壳以及接头， 其中至少一 发光二极管芯片以及反射装置安置在基板上， 且反射装置靠近或位于基板的 中央， 发光二极管芯片均勾分布在反射装置周围， 灯罩覆盖基板、 发光二极 管芯片及反射装置， 且灯罩的边缘连结基板的外缘， 藉以形成封闭空间， 提 供隔绝保护作用， 灯罩的边缘进一步连结灯壳， 而灯壳进一步连结接头。
反射装置具有斜向下的反射面， 比如单一凹面或平面或多个具有不同反 射角度的凹面或平面， 且发光二极管芯片所发射的原始发射光可经反射装置 的反射面反射后形成斜向下侧光， 并穿透灯罩。 因此， 本发明的发光二极管 灯具可藉反射装置提供斜向下侧光， 非常适合不需朝上直接照射光而只需要 斜向下侧光的应用领域， 比如利用顶部屏蔽以遮挡朝上直接照射光的公园步 道灯或室内情境灯。 附图说明
图 1显示本发明具反射装置的发光二极管灯具的示意图； 以及
图 2显示本发明另一实施例具反射装置的发光二极管灯具的示意图。 具体实施方式
以下配合说明书附图对本发明的实施方式做更详细的说明， 以使本领域 技术人员在研读本说明书后能据以实施。
参考图 1， 图 1为本发明具反射装置的发光二极管灯具的示意图。 如图
1 所示， 本发明的发光二极管灯具包括基板 10、 至少一发光二极管 (LED) 芯片 20、 反射装置 30、 灯罩 40、 灯壳以及接头 (其中灯壳及接头未显示于图 中)。 LED芯片 20以及反射装置 30是安置在基板 10上， 且反射装置 30靠 近或位于基板 10的中央，而 LED芯片 20是均匀分布在反射装置 30的周围。
灯罩 40.具透光性并覆盖基板 10、 LED芯片 20及反射装置 30， 且灯罩
40的边缘连结基板 10的外缘， 藉以形成封闭空间， 提供隔绝保护作用。 此 夕卜， 灯罩 40 的边缘进一步连结灯壳， 而灯壳再进一步连结接头， 且接头及 灯罩 40是位于灯壳的二相对面侧， 其中接头电气连接至基板 10上的 LED 芯片 20。 因此， 灯罩 40、 灯壳及接头形成整体外观。
接头连接外部电源 (图中未显示)，用以驱动 LED芯片 20，而产生原始发 射光 Ll。反射装置 30的表面具反射层， 用以反射光线， 且反射装置 30具有 斜向下的反射面， 比如图中的反射凹面， 且 LED芯片 20所发射的原始发射 光 L1可经反射装置 30的反射面反射后形成斜向下侧光 L2，并穿透灯罩 40。 反射装置 30 的反射面可进一步具有多个下凹圆洞或多个角锥形下凹面， 藉 以加强斜向下反射的功能。另外，图 1的反射装置 30也可具有多个反射面 (图 中未显示)， 藉以弹性调节斜向下侧光 L2的角度范围。
此外， 灯罩 40的顶部区域可藉涂布反射层 (图中未显示)， 而使 LED芯 片 20朝上的原始发射光 L1 向下反射， 因而阻挡朝上的原始发射光 L1 , 而 只有经反射装置 30的斜向下侧光 L2可穿透灯罩 40。
参考图 2， 图 2为本发明另一实施例的示意图。 如图 2所示， 本实施例 的发光二极管灯具类似于图 1的实施例， 其主要差异点在于图 2的反射装置 32具有多个不同反射角度的平面状的反射面， 而非凹面， 其余组件相同， 因 此不再赘述。 此外， 上述的每个反射面可进一步具有多个下凹圆洞或多个角 锥形下凹面。
因此， 本发明发光二极管灯的特点在于， 可利用反射装置提供斜向下侧 光， 非常适合不需朝上直接照射光而只需要斜向下侧光的应用领域， 比如利 用顶部屏蔽以遮挡朝上直接照射光的公园步道灯、 室内情境灯或灯饰。
以上所述仅为用以解释本发明的较佳实施例， 并非企图据以对本发明做 任何形式上的限制， 因此， 凡有在相同的创作精神下所作有关本发明的任何 修饰或变更， 皆仍应包括在本发明意图保护的范畴。

Claims

权利要求
1.一种具反射装置的发光二极管灯具， 其特征在于， 包括：
一基板；
一反射装置， 安置在靠近或位于该基板的中央， 该反射装置的表面具一 反射层， 用以反射光线， 且该反射装置具有斜向下的反射凹面的一反射面或 具有多个不同反射角度的平面状的反射面；
至少一发光二极管 LED 芯片， 安置在该基板上， 且均匀分布在该反射 装置的周围， 当作一光源；
一灯罩， 具透光性并覆盖该基板、 该至少一 LED 芯片及该反射装置， 且该灯罩的边缘连结该基板的外缘， 藉以形成封闭空间；
一灯壳， 连结该灯罩的边缘； 以及
一接头， 连结该灯壳， 且该接头以及该灯罩位于该灯壳的二相对面侧， 该接头并电气连接至该基板上的该至一 LED 芯片， 用以将外部电源电气连 接至该至一 LED芯片， 以产生一原始发射光，
其中该原始发射光经该反射装置的反射性凹面反射后形成一斜向下侧 光， 并穿透该灯罩。
2.如权利要求 1所述的发光二极管灯具， 其特征在于， 该反射装置的反 射凹面或该平面状的反射面进一步具有多个下凹圆洞或多个角锥形下凹面。
3.如权利要求 1所述的发光二极管灯具， 其特征在于， 该灯罩的一顶部 区域具有一反射层， 用以使该至少一 LED芯片朝上的原始发射光向下反射， 因而阻挡朝上的原始发射光穿透该灯罩。
PCT/CN2012/001317 2011-10-09 2012-09-27 具反射装置的发光二极管灯具 WO2013053197A1 (zh)

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CN2011203792131U CN202274361U (zh) 2011-10-09 2011-10-09 具反射装置的发光二极管灯具
CN201120379213.1 2011-10-09

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Publication number Priority date Publication date Assignee Title
CN202274361U (zh) * 2011-10-09 2012-06-13 九江正展光电有限公司 具反射装置的发光二极管灯具
TWI614451B (zh) 2017-06-13 2018-02-11 財團法人工業技術研究院 Ｌｅｄ光源模組及其光照射方法

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CN201715283U (zh) * 2010-02-25 2011-01-19 中山市琪朗灯饰厂有限公司 一种led灯
CN201739869U (zh) * 2010-08-20 2011-02-09 沈李豪 Led灯泡
CN201866672U (zh) * 2010-11-02 2011-06-15 杭州富光科技有限公司 一种船用led环照灯
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Publication number Priority date Publication date Assignee Title
CN201373273Y (zh) * 2009-03-12 2009-12-30 林峻毅 反射式led灯
CN201715283U (zh) * 2010-02-25 2011-01-19 中山市琪朗灯饰厂有限公司 一种led灯
CN201739869U (zh) * 2010-08-20 2011-02-09 沈李豪 Led灯泡
CN201866672U (zh) * 2010-11-02 2011-06-15 杭州富光科技有限公司 一种船用led环照灯
CN202274361U (zh) * 2011-10-09 2012-06-13 九江正展光电有限公司 具反射装置的发光二极管灯具

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