WO2014063435A1 - 一种照明灯具 - Google Patents

一种照明灯具 Download PDF

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Publication number
WO2014063435A1
WO2014063435A1 PCT/CN2013/000737 CN2013000737W WO2014063435A1 WO 2014063435 A1 WO2014063435 A1 WO 2014063435A1 CN 2013000737 W CN2013000737 W CN 2013000737W WO 2014063435 A1 WO2014063435 A1 WO 2014063435A1
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WO
WIPO (PCT)
Prior art keywords
reflective
lighting fixture
light
fixture according
reflective component
Prior art date
Application number
PCT/CN2013/000737
Other languages
English (en)
French (fr)
Inventor
王耀海
Original Assignee
欧普照明股份有限公司
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Filing date
Publication date
Application filed by 欧普照明股份有限公司 filed Critical 欧普照明股份有限公司
Publication of WO2014063435A1 publication Critical patent/WO2014063435A1/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
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F21V7/0033—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following
    • F21V7/0041—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following for avoiding direct view of the light source or to prevent dazzling
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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 invention relates to a luminaire, in particular to a luminaire.
  • the LED ceiling lamps on the market generally adopt a direct-type structure, that is, the LED light source is disposed on the reflective bottom plate, and the light exit port of the ceiling lamp is provided with a diffusion panel, and the light emitted by the light source is emitted from the diffusion panel.
  • the LED ceiling lamp has a relatively simple structure and a relatively high light efficiency; however, the uniformity of the light is poor, and sometimes the LED particles can be seen. Summary of invention
  • the technical problem to be solved by the present invention is to provide a lighting fixture.
  • the lighting fixture of the present invention includes a light source, a first reflecting member and a second reflecting member, the first reflecting member for reflecting light emitted by the light source to the second reflecting member, the second The reflecting member is configured to reflect the light reflected by the first reflecting member toward the light exit opening of the lighting fixture.
  • the second reflective component is a bottom plate of the lighting fixture.
  • the first reflective member is disposed on a side of the second reflective member adjacent to the light exit opening, and the light source is disposed between the first reflective member and the second reflective member.
  • the first reflecting member is a lens provided with a reflecting surface.
  • the light incident surface of the lens is a circular arc stretched surface; or a part of the light incident surface of the lens is a circular arc stretched surface, and another part thereof is a plane; or the light incident surface of the lens is a flat surface.
  • the light emitting surface of the lens is a plane or a curved surface.
  • the reflective surface of the first reflective member is provided with a reflective plating layer.
  • the light exiting surface of the lens is provided with an array of microprisms.
  • the first reflective component is a reflective plate.
  • the reflecting plate is injection molded from plastic, and the reflecting surface of the reflecting plate is provided with a reflective plating layer; or the reflecting plate is made of aluminum or aluminum alloy.
  • the reflective surface of the reflector is provided with a reflective protrusion.
  • the substrate of the light source is in contact with the second reflective member for dissipating heat through the second reflective member.
  • the lighting fixture is a circular ceiling lamp, and the first reflecting component is annular.
  • the first reflecting member comprises n discrete reflecting units, n 2 .
  • the lighting fixture is a square lamp panel, and the first reflecting component has a strip shape.
  • the light source is an LED.
  • the working principle of the present invention is as follows: The light emitted by the light source is reflected by the first reflecting member to the second reflecting member, and then reflected by the second reflecting member to the light exit port of the lighting fixture for illumination.
  • the first reflecting member and the second reflecting member by providing the first reflecting member and the second reflecting member, the light emitted by the light source of the lighting fixture of the present invention is reflected to the light exiting port through the first reflecting member and the second reflecting member, thereby greatly increasing the stroke of the light.
  • the stroke of the light is greatly increased without increasing the thickness of the illuminator, so that the light of the light source is more uniform, and the unevenness of light such as graininess is avoided.
  • Figure 1 is a schematic view of Embodiment 1 of a lighting fixture of the present invention
  • Figure 2 is a transverse cross-sectional view of the lighting fixture of Figure 1;
  • Figure 3 is a longitudinal cross-sectional view of the lighting fixture of Figure 1;
  • Figure 4 is an enlarged view of a portion A in Figure 3;
  • Figure 5 is a schematic view of a lens suitable for use in the lighting fixture of Figure 1;
  • Figure 6 is a schematic illustration of another lens suitable for use in the lighting fixture of Figure 1;
  • Figure 7 is a schematic view of a third lens suitable for use in the lighting fixture of Figure 1;
  • Figure 8 is a perspective view of Embodiment 2 of the lighting fixture of the present invention.
  • Figure 9 is a cross-sectional view of the lighting fixture of Figure 8.
  • Figure 10 is a schematic view of Embodiment 3 of the lighting fixture of the present invention.
  • Figure 11 is a transverse cross-sectional view of the lighting fixture of Figure 10;
  • Figure 12 is a longitudinal cross-sectional view of the lighting fixture of Figure 10;
  • Figure 13 is an enlarged view of a portion B in Figure 12;
  • Figure 14 is a schematic view of a reflector suitable for use in the lighting fixture of Figure 10;
  • FIG 15 is a schematic illustration of another reflector suitable for use in the lighting fixture of Figure 10;
  • Figure 16 is an enlarged view of a portion C of Figure 15. Summary of the invention
  • a ceiling lamp as an embodiment of the lighting fixture of the present invention includes a light source 9, a first reflecting member 3, and a second reflecting member.
  • the first reflecting member 3 is for reflecting the light emitted by the light source 9 toward the second reflecting member.
  • the second reflecting member is configured to reflect light emitted by the light source 9 and reflected by the first reflecting member 3 to a light exit opening of the lighting fixture.
  • the light exit port is provided with a diffusing mask 1 made of acrylic or blow molded by mixing and diffusing particles of PC material.
  • the second reflective component is the bottom plate 2 of the ceiling lamp
  • the material of the bottom plate 2 may be a steel plate, a pure aluminum plate or an aluminum alloy plate, and the reflective surface of the bottom plate 2 may also be coated with reflective properties. Good material, or a reflective sheet with good reflection properties to improve reflection efficiency.
  • the shape of the bottom plate 2 may be a flat surface or a curved surface.
  • the lighting fixture is a circular ceiling lamp
  • the first reflective component 3 is annular in shape
  • the first reflective component 3 includes eight reflective units disposed separately. The reflecting units are connected end to end, so that the first reflecting member as a whole has a regular octagon shape.
  • the first reflecting member 3 is disposed on a side of the bottom plate 2 adjacent to the light exit opening, and the light source 9 is disposed between the first reflecting member 3 and the bottom plate 2 .
  • the first reflecting member 3 is a lens provided with a reflecting surface 32.
  • the reflecting surface 32 is provided with a reflective plating layer, and the material of the plating layer may be silver, copper or the like.
  • the first reflecting member 3 further includes a light incident surface 31 and a light exit surface 33.
  • FIG. 5 is a schematic view of a lens suitable for use in the present embodiment.
  • the light incident surface 31 of the lens is a semi-circular curved surface, and the reflecting surface 32 is a curved surface, and the light emitting surface 33 is a flat surface.
  • the light incident surface 31 of the lens has a circular arc shape, and the light source 9 is disposed at a center position of the circular arc light incident surface 31.
  • the substrate 91 of the light source 9 is kept in contact with the bottom plate 2 to dissipate heat through the bottom plate 2, and the substrate 91 is an aluminum substrate, a ceramic substrate or the like.
  • the central portion of the ceiling lamp is provided with a central reflection ring 5 and a decorative panel 6 covering the central reflection ring 5.
  • the central reflection ring 5 functions to prevent light from entering the non-light-emitting area, and is more advantageous for improving the luminous efficiency of the lamp.
  • the center reflection ring 5 can be made of a reflection sheet having a diffuse reflection effect.
  • Decorative panel 6 can make the product beautiful, with anti-mosquito and anti-ash The effect of dust.
  • an infrared receiving probe can be placed on the decorative panel 6 to achieve the purpose of remotely adjusting the color of the lighting.
  • a reflective unit is disposed on a substrate, a plurality of LED light sources are disposed on the substrate, and the first reflective member 3 includes eight reflective units arranged in a regular octagon shape.
  • the working principle of the present invention is as follows: The light emitted by the light source is reflected by the first reflecting member to the second reflecting member, and then reflected by the second reflecting member to the light exit port of the lighting fixture for illumination.
  • the illumination lamp of the invention has a long stroke of light, and greatly increases the stroke of the light without increasing the thickness of the lamp, so that the light of the light source is more uniform, and the light of the grain is not avoided. The situation of both hooks.
  • the light-emitting surface 33 of the lens is provided with a microprism array which allows light to be diffused in a predetermined direction.
  • the lens is further provided with a protrusion 36, which is provided with a through hole through which a screw passes, for fixing the lens with a screw;
  • a protrusion 36 By providing the bumps 36, incident light in the direction of the bumps 36 can be removed.
  • the large-angle direction of the light incident surface of the lens is a plane, and the light can be emitted closer to the horizontal direction; the light-emitting surface 33 is also provided as a curved surface, so that the light can be emitted farther.
  • the first reflecting member may also have a circular shape as a whole and be composed of a plurality of reflecting units.
  • Example 2 Example 2:
  • a light panel as an embodiment of the lighting fixture of the present invention includes a light source 9, a first reflecting member 3 and a second reflecting member.
  • the first reflecting member 3 is for reflecting the light emitted by the light source 9 toward the second reflecting member.
  • the second reflecting member is configured to reflect light emitted by the light source 9 and reflected by the first reflecting member 3 toward a light exit opening of the lamp panel.
  • the light The mouth is provided with a diffusion mask 1 made of acrylic or blow molded by mixing of PC material with diffusion particles.
  • the second reflective component is the bottom plate 2 of the lamp panel, and the material of the bottom plate 2 may be a steel plate, a pure aluminum plate or an aluminum alloy plate, and the reflective surface of the bottom plate 2 may also be coated with reflective properties.
  • the shape of the bottom plate 2 may be a flat surface or a curved surface.
  • the first reflecting member 3 is a lens provided with a reflecting surface 32.
  • the reflecting surface 32 is provided with a reflective plating layer, and the material of the plating layer may be silver, copper or the like.
  • the first reflecting member 3 further includes a light incident surface 31 and a light exit surface 33.
  • the working principle of the present invention is as follows: The light emitted by the light source is reflected by the first reflecting member to the second reflecting member, and then reflected by the second reflecting member to the light exit port of the lighting fixture for illumination.
  • the illumination lamp of the invention has a long stroke of light, and greatly increases the stroke of the light without increasing the thickness of the lamp, so that the light of the light source is more uniform, and the light of the grain is not avoided. Uniform situation.
  • Example 3 Example 3:
  • a ceiling light as an embodiment of the lighting fixture of the present invention includes a light source 9, a first reflecting member 3 and a second reflecting member.
  • the first reflecting member 3 is for reflecting the light emitted by the light source 9 toward the second reflecting member.
  • the second reflecting member is configured to reflect the light emitted by the light source 9 and reflected by the first reflecting member 3 toward the light exit opening of the ceiling lamp.
  • the light exit port is provided with a diffusing mask 1 made of acrylic or blow molded by mixing and diffusing particles of PC material.
  • the second reflective component is the bottom plate 2 of the ceiling lamp
  • the material of the bottom plate 2 may be a steel plate, a pure aluminum plate or an aluminum alloy plate, or
  • the reflective surface of the bottom plate 2 is coated with a material having good reflection properties, or a reflective sheet having good reflection properties is attached to improve reflection efficiency.
  • the shape of the bottom plate 2 may be a flat surface, or may be a curved surface, which is a curved surface in this embodiment.
  • the ceiling lamp has a circular shape
  • the first reflective member 3 has a ring shape as a whole
  • the first reflective member 3 includes eight reflective units disposed separately.
  • the reflecting units are connected end to end, so that the first reflecting member as a whole has a regular octagon shape.
  • the first reflecting member 3 is disposed on a side of the bottom plate 2 adjacent to the light exit opening, and the light source 9 is disposed between the first reflecting member 3 and the bottom plate 2 .
  • the first reflecting member 3 is a reflecting plate. As shown in Fig.
  • a reflecting plate suitable for the present embodiment is injection-molded from a plastic such as ABS or PC, and a vacuum coating film is provided on the reflecting surface for the purpose of improving the reflection effect.
  • the substrate 91 of the light source 9 is in contact with the bottom plate 2 to dissipate heat through the bottom plate 2, and the substrate 91 is an aluminum substrate, a ceramic substrate or the like.
  • the central portion of the ceiling lamp is provided with a central reflection ring 5 and a decorative panel 6 covering the central reflection ring 5.
  • the central reflection ring 5 functions to prevent light from entering the non-light-emitting area, and is more advantageous for improving the luminous efficiency of the lamp.
  • the center reflection ring 5 can be made of a reflection sheet having a diffuse reflection effect.
  • the decorative panel 6 can make the product beautiful and has anti-mosquito and anti-dust effects.
  • an infrared receiving probe can be placed on the decorative panel 6 to achieve the purpose of remotely adjusting the color of the lighting.
  • a reflective unit is disposed on a substrate, a plurality of LED light sources are disposed on the substrate, and the first reflective member 3 includes eight reflective units arranged in a regular octagon shape.
  • the reflecting plate is made of a metal material such as an aluminum plate or an aluminum alloy having a high reflectance.
  • the reflection of the reflector The surface is provided with a reflection protrusion 100 to diffuse light in a predetermined direction.
  • the first reflecting member has a circular shape as a whole, and is formed by connecting a plurality of reflecting units end to end.
  • the working principle of the present invention is such that the light emitted by the light source is reflected by the first reflecting member to the second reflecting member, and then reflected by the second reflecting member to the light exit port of the lighting fixture for illumination.
  • the illumination lamp of the invention has a long stroke of light, and greatly increases the stroke of the light without increasing the thickness of the lamp, so that the light of the light source is more uniform, and the light of the grain is not avoided. Uniform situation.

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

Abstract

一种照明灯具，包括光源（9）、第一反射部件（3）和第二反射部件（2），所述第一反射部件（3）用于将所述光源（9）发出的光反射到第二反射部件（2），所述第二反射部件（2）用于将所述第一反射部件（3）反射过来的光向所述照明灯具的出光口反射。该照明灯具的光的行程较长，在不需要增加灯具厚度的情况下，大幅增加了光的行程，从而使光源的光线更加均匀，避免出现颗粒感等光线不均匀的情况。

Description

一种照明灯具 技术领域
本发明涉及一种灯具， 尤其涉及一种照明灯具。 技术背景
目前， 市场上的 LED吸顶灯一般采用直下式结构， 即 LED光源设置在 反射底板上，吸顶灯的出光口设有扩散面板，光源发出的光从扩散面板射出。 这种 LED吸顶灯结构较为简单， 光效也比较高； 但光线的均匀度较差， 有 时甚至可以看到 LED颗粒。 发明概要
本发明所要解决的技术问题是提供一种照明灯具。
为了解决以上技术问题， 本发明的照明灯具包括光源、第一反射部件和 第二反射部件，所述第一反射部件用于将所述光源发出的光反射到第二反射 部件，所述第二反射部件用于将所述第一反射部件反射过来的光向所述照明 灯具的出光口反射。
优选地， 所述第二反射部件为所述照明灯具的底板。
优选地，所述第一反射部件设置于所述第二反射部件的靠近所述出光口 的一侧， 所述光源设置于所述第一反射部件与所述第二反射部件之间。
优选地， 所述第一反射部件为设有反射面的透镜。
优选地， 所述透镜的入光面为圆弧拉伸面； 或者所述透镜的入光面一部 分为圆弧拉伸面， 其另一部分为平面； 或者所述透镜的入光面为平面。 优选地， 所述透镜的出光面为平面或者曲面。
优选地， 所述第一反射部件的反射面设有反射镀层。
优选地， 所述透镜的出光面设有微棱镜阵列。
优选地， 所述第一反射部件为反射板。
优选地， 所述反射板由塑料注塑而成， 所述反射板的反射面设有反射镀 层； 或者所述反射板由铝或者铝合金制成。
优选地， 所述反射板的反射面上设有反射凸起。
优选地，所述光源的基板与所述第二反射部件保持接触以便通过所述第 二反射部件散热。
优选地， 所述照明灯具为圆形吸顶灯， 所述第一反射部件呈环状。 优选地， 所述第一反射部件包括 n个分体设置的反射单元， n 2。 优选地， 所述照明灯具为方形灯盘， 所述第一反射部件呈条状。
优选地， 所述光源为 LED。
本发明的工作原理是这样的： 光源发出的光由第一反射部件反射到第二 反射部件上， 再由第二反射部件反射到照明灯具的出光口进行照明。 相对于 现有技术， 通过设置第一反射部件和第二反射部件， 本发明的照明灯具的光 源发出的光经第一反射部件和第二反射部件反射到出光口， 大幅增加了光的 行程， 并且是在不增加灯具厚度的情况下大幅增加了光的行程， 从而使光源 的光线更加均匀， 避免出现颗粒感等光线不均匀的情况。
图 1是本发明的照明灯具的实施例 1的示意图； 图 2是图 1中的照明灯具的横向剖视图；
图 3是图 1中的照明灯具的纵向剖视图；
图 4是图 3中局部 A的放大图；
图 5是适用于图 1中照明灯具的一种透镜的示意图；
图 6是适用于图 1中照明灯具的另一种透镜的示意图；
图 7是适用于图 1中照明灯具的第三种透镜的示意图；
图 8是本发明的照明灯具的实施例 2的透视图；
图 9是图 8中的照明灯具的剖视图；
图 10是本发明的照明灯具的实施例 3的示意图；
图 11是图 10中的照明灯具的横向剖视图；
图 12是图 10中的照明灯具的纵向剖视图；
图 13是图 12中局部 B的放大图；
图 14是适用于图 10中照明灯具的一种反射板的示意图；
图 15是适用于图 10中照明灯具的另一种反射板的示意图；
图 16是图 15局部 C的放大图。 发明内容
实施例 1:
如图 1-7所示， 作为本发明照明灯具的一种实施例的吸顶灯， 包括光源 9、 第一反射部件 3和第二反射部件。 所述第一反射部件 3用于向所述第二 反射部件反射所述光源 9发出的光。所述第二反射部件用于将所述光源 9发 出的并经所述第一反射部件 3反射过来的光向所述照明灯具的出光口反射。 所述出光口设有扩散面罩 1， 所述扩散面板 1为亚克力制成， 或者由 PC材 料混合扩散粒子吹塑制成。 在本实施例中， 所述第二反射部件为所述吸顶灯 的底板 2， 所述底板 2的材料可以是钢板、 纯铝板或者铝合金板， 还可以在 底板 2的反射面涂覆反射性能好的材料， 或者贴上反射性能好的反射片， 以 提高反射效率。底板 2的形状可以是平面，或者也可以是弧面。如图 2所示， 在本实施例中， 所述照明灯具为圆形吸顶灯， 所述第一反射部件 3整体呈环 形， 所述第一反射部件 3包括 8个分体设置的反射单元， 所述反射单元首尾 相连， 使第一反射部件整体呈正八边形。 所述第一反射部件 3设置于所述底 板 2的靠近所述出光口的一侧，所述光源 9设置于所述第一反射部件 3与所 述底板 2之间。 这样， 光到达第一反射部件 3后再从底板 2反射， 增加了光 的行程， 而不会增加灯具的厚度， 使灯具的出射光线更加均匀， 厚度更薄、 更美观。 在本实施例中， 所述第一反射部件 3为设有反射面 32的透镜， 为 了提高其反射效果， 所述反射面 32设有反射镀层， 所述镀层的材料可以为 银、 铜等材料。 如图 4所示， 所述第一反射部件 3还包括入光面 31和出光 面 33。 图 5是适用于本实施例的一种透镜的示意图。 该透镜的入光面 31为 半圆弧拉伸面， 其反射面 32为曲面， 其出光面 33为平面。 该透镜的入光面 31的截面呈圆弧形， 所述光源 9设置于所述圆弧形入光面 31的圆心位置。 所述光源 9的基板 91与所述底板 2保持接触以便通过所述底板 2散热， 所 述基板 91 为铝基板、 陶瓷基板等。 在本实施例中， 所述吸顶灯的中部设有 中心反射环 5和遮盖中心反射环 5的装饰板 6。 中心反射环 5的作用是阻止 光进入非出光区域， 更有利于提高灯具的发光效率， 中心反射环 5可以由具 有漫反射效果的反射片制成。装饰板 6可以使产品美观， 具有防蚊虫和防灰 尘的效果。 同时， 可以在装饰板 6上放置红外接收探头， 以达到灯具遥控调 光调色的目的。 在本实施例中， 一个基板上放置有一个反射单元， 基板上设 置若干个 LED光源， 第一反射部件 3包括 8个呈正八边形排布的反射单元。
本发明的工作原理是这样的： 光源发出的光由第一反射部件反射到第二 反射部件上， 再由第二反射部件反射到照明灯具的出光口进行照明。相对于 现有技术， 本发明的照明灯具的光的行程较长， 在不需要增加灯具厚度的情 况下， 大幅增加了光的行程， 从而使光源的光线更加均匀， 避免出现颗粒感 等光线不均勾的情况。
作为本实施例的简单变形， 如图 6所示， 所述透镜的出光面 33上设有 微棱镜阵列， 可以使光向预定的方向扩散。
作为本实施例的另一种简单变形，如图 7所示，所述透镜还设有凸块 36， 该凸块 36设有供螺钉穿过的通孔， 用于配合螺钉固定透镜； 并且， 通过设 置凸块 36， 可以去除凸块 36方向的入射光。 另外， 该透镜的入光面的大角 度方向为平面， 可以使光更接近水平方向射出； 所述出光面 33也设置成曲 面， 这样使光可以射得更远些。 作为本实施例的简单变形， 所述第一反射部 件整体上也可以呈圆环形， 由若干个反射单元组成。 实施例 2：
如图 8-9所示， 作为本发明照明灯具的一种实施例的灯盘， 包括光源 9、 第一反射部件 3和第二反射部件。所述第一反射部件 3用于向所述第二反射 部件反射所述光源 9发出的光。所述第二反射部件用于将所述光源 9发出的 并经所述第一反射部件 3反射过来的光向所述灯盘的出光口反射。所述出光 口设有扩散面罩 1， 所述扩散面板 1为亚克力制成， 或者由 PC材料混合扩 散粒子吹塑制成。 在本实施例中， 所述第二反射部件为所述灯盘的底板 2， 所述底板 2的材料可以是钢板、 纯铝板或者铝合金板， 还可以在底板 2的反 射面涂覆反射性能好的材料， 或者贴上反射性能好的反射片， 以提高反射效 率。 底板 2的形状可以是平面， 或者也可以是弧面。 在本实施例中， 所述第 一反射部件 3为设有反射面 32的透镜， 为了提高其反射效果， 所述反射面 32设有反射镀层， 所述镀层的材料可以为银、铜等材料。所述第一反射部件 3还包括入光面 31和出光面 33。
本发明的工作原理是这样的： 光源发出的光由第一反射部件反射到第二 反射部件上， 再由第二反射部件反射到照明灯具的出光口进行照明。相对于 现有技术， 本发明的照明灯具的光的行程较长， 在不需要增加灯具厚度的情 况下， 大幅增加了光的行程， 从而使光源的光线更加均匀， 避免出现颗粒感 等光线不均匀的情况。 实施例 3:
如图 10-16所示， 作为本发明照明灯具的一种实施例的吸顶灯， 包括光 源 9、 第一反射部件 3和第二反射部件。 所述第一反射部件 3用于向所述第 二反射部件反射所述光源 9发出的光。 所述第二反射部件用于将所述光源 9 发出的并经所述第一反射部件 3反射过来的光向所述吸顶灯的出光口反射。 所述出光口设有扩散面罩 1， 所述扩散面板 1为亚克力制成， 或者由 PC材 料混合扩散粒子吹塑制成。 在本实施例中， 所述第二反射部件为所述吸顶灯 的底板 2， 所述底板 2的材料可以是钢板、 纯铝板或者铝合金板， 还可以在 底板 2的反射面涂覆反射性能好的材料， 或者贴上反射性能好的反射片， 以 提高反射效率。 底板 2的形状可以是平面， 或者也可以是弧面， 在本实施例 中为弧面。 如图 11 所示， 在本实施例中， 所述吸顶灯呈圆形， 所述第一反 射部件 3整体呈环形， 所述第一反射部件 3包括 8个分体设置的反射单元， 所述反射单元首尾相连， 使第一反射部件整体呈正八边形。 所述第一反射部 件 3设置于所述底板 2的靠近所述出光口的一侧，所述光源 9设置于所述第 一反射部件 3与所述底板 2之间。 这样， 光到达第一反射部件 3后再从底板 2反射， 增加了光的行程， 而不会增加灯具的厚度， 使灯具的出射光线更加 均匀， 厚度更薄更美观。 在本实施例中， 所述第一反射部件 3为反射板。 如 图 14所示， 作为适用于本实施例的一种反射板， 由 ABS或者 PC等塑料注 塑而成， 为提高反射效果， 在其反射面设置真空镀膜。所述光源 9的基板 91 与所述底板 2保持接触以便通过所述底板 2散热， 所述基板 91为铝基板、 陶瓷基板等。 在本实施例中， 所述吸顶灯的中部设有中心反射环 5和遮盖中 心反射环 5的装饰板 6。 中心反射环 5的作用是阻止光进入非出光区域， 更 有利于提高灯具的发光效率， 中心反射环 5可以由具有漫反射效果的反射片 制成。 装饰板 6可以使产品美观， 具有防蚊虫和防灰尘的效果。 同时， 可以 在装饰板 6上放置红外接收探头， 以达到灯具遥控调光调色的目的。在本实 施例中， 一个基板上放置有一个反射单元， 基板上设置若干个 LED光源， 第一反射部件 3包括 8个呈正八边形排布的反射单元。
作为本实施例的一种简单变形， 所述反射板由反射率高的铝板、铝合金 等金属材料制成。
作为本实施例的另一种简单变形， 如图 15-16所示， 所述反射板的反射 面设有反射凸起 100， 以使光线向预定方向扩散。
作为本实施例的第三种简单变形， 所述第一反射部件整体上呈圆环形， 由若干个反射单元首尾连接而成。
本发明的工作原理是这样的：光源发出的光由第一反射部件反射到第二 反射部件上， 再由第二反射部件反射到照明灯具的出光口进行照明。 相对于 现有技术， 本发明的照明灯具的光的行程较长， 在不需要增加灯具厚度的情 况下， 大幅增加了光的行程， 从而使光源的光线更加均匀， 避免出现颗粒感 等光线不均匀的情况。

Claims

权利要求
1、 一种照明灯具， 包括光源、 第一反射部件和第二反射部件， 所述第 一反射部件用于将所述光源发出的光反射到第二反射部件，所述第二反射部 件用于将所述第一反射部件反射过来的光向所述照明灯具的出光口反射。
2、 根据权利要求 1所述的照明灯具， 其特征在于， 所述第二反射部件 为所述照明灯具的底板。
3、 根据权利要求 1 所述的照明灯具， 其特征在于， 所述第一反射部件 设置于所述第二反射部件的靠近所述出光口的一侧。
4、 根据权利要求 1 所述的照明灯具， 其特征在于， 所述第一反射部件 为设有反射面的透镜。
5、 根据权利要求 4所述的照明灯具， 其特征在于， 所述第一反射部件 的反射面设有反射镀层。
6、 根据权利要求 4所述的照明灯具， 其特征在于， 所述透镜的出光面 设有微棱镜阵列。
7、 根据权利要求 4所述的照明灯具， 其特征在于， 所述透镜的入光面 为圆弧拉伸面； 或者所述透镜的入光面一部分为圆弧拉伸面， 其另一部分为 平面； 或者所述透镜的入光面为平面。
8、 根据权利要求 4所述的照明灯具， 其特征在于， 所述透镜的出光面 为平面或者曲面。
9、 根据权利要求 1所述的照明灯具， 其特征在于， 所述第一反射部件 为反射板。
10、 根据权利要求 9所述的照明灯具， 其特征在于， 所述反射板由塑料 注塑而成， 所述反射板的反射面设有反射镀层； 或者所述反射板由铝或者铝 合金制成。
11、 根据权利要求 9所述的照明灯具， 其特征在于， 所述反射板的反射 面上设有反射凸起。
12、 根据权利要求 1所述的照明灯具， 其特征在于， 所述光源的基板与 所述第二反射部件保持接触以便通过所述第二反射部件散热。
13、 根据权利要求 1所述的照明灯具， 其特征在于， 所述光源为 LED。
14、 根据权利要求 1所述的照明灯具， 其特征在于， 所述照明灯具为圆 形吸顶灯， 所述第一反射部件呈圆环形或者正多边形。
15、 根据权利要求 1所述的照明灯具， 其特征在于， 所述第一反射部件 包括 n个分体设置的反射单元， n 2。
16、 根据权利要求 1所述的照明灯具， 其特征在于， 所述照明灯具为方 形灯盘， 所述第一反射部件呈条状。
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