WO2018228224A1 - 一种灯具 - Google Patents

一种灯具 Download PDF

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Publication number
WO2018228224A1
WO2018228224A1 PCT/CN2018/089620 CN2018089620W WO2018228224A1 WO 2018228224 A1 WO2018228224 A1 WO 2018228224A1 CN 2018089620 W CN2018089620 W CN 2018089620W WO 2018228224 A1 WO2018228224 A1 WO 2018228224A1
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WO
WIPO (PCT)
Prior art keywords
light
reflector
internal reflection
total internal
housing
Prior art date
Application number
PCT/CN2018/089620
Other languages
English (en)
French (fr)
Inventor
王聪
鲜万春
Original Assignee
苏州欧普照明有限公司
欧普照明股份有限公司
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Publication of WO2018228224A1 publication Critical patent/WO2018228224A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V17/16—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 by deformation of parts; Snap action mounting
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors

Definitions

  • the present invention relates to the field of lighting technologies, and in particular, to a lighting fixture.
  • the light distribution component is an important part of the luminaire, and its light distribution capability is extremely important for the performance of the luminaire.
  • Current luminaires, especially spotlights generally use a reflector or a lens alone.
  • luminaires that use reflectors or lenses alone often have problems in actual use.
  • a luminaire using a lens alone has a large amount of stray light, which is liable to cause glare and cause discomfort to the user.
  • the illuminator of the reflector is separately used, part of the light is directly emitted, and the other part is reflected by the reflector, and the beam transition of the emitted light is not smooth enough.
  • the present invention provides a lamp which not only can fully utilize light energy, but also can reduce glare level and reduce user discomfort.
  • the present invention provides a light fixture comprising:
  • a reflector mounted to the housing, the reflector having an entrance opening and a light exit;
  • a total internal reflection lens mounted to the housing and located at a light entrance of the reflector, the total internal reflection lens comprising a light incident surface, a light exit surface opposite to the light incident surface, and a connection light incident surface And a total internal reflection surface of the light-emitting surface, the light-incident surface and the housing cooperate to form a light source cavity;
  • the light source module includes a light emitting unit located in the light source cavity.
  • the light source module further includes a light source panel supporting the light emitting unit, the light source panel is mounted to the housing, and the total internal reflection lens is mounted to the light source panel.
  • the housing includes an opening and a receiving cavity extending from the opening; the total internal reflection lens is located in the receiving cavity, and the reflector is installed between the total internal reflection lens and the opening.
  • the periphery of the light-emitting surface has a mounting ring; the inner wall of the receiving cavity has a circumferentially extending boss; the boss abuts the mounting ring.
  • the reflector is provided with a buckle that is engaged with the inner wall of the housing at the periphery of the light exit opening.
  • the total internal reflection lens is a rotating body;
  • the light incident surface includes a central light incident surface and a rotary light incident surface surrounding the central light incident surface.
  • the total internal reflection surface is a curved surface with a straight line, a parabola, a hyperbola or a spline as a bus bar.
  • the light-emitting surface is at least one of a plane, a spherical surface or a free-form surface; and the surface texture of the light-emitting surface is at least one of a polished surface, an etched surface or a spherical bead.
  • the reflector is an electroplated scale reflector; the busbar of the reflector is at least one of a straight line, a parabola, a hyperbola or a spline curve.
  • the total internal reflection lens has a light incident surface diameter of 17 to 20 mm, and a light exit surface diameter of 36 to 42 mm; the light entrance and the light exit opening of the reflector are 27.2 to 29.5 mm, and the outer diameter of the light entrance is 42 to 44mm, the outer diameter of the light exit is 56 ⁇ 58mm.
  • the luminaire provided by the present invention uses a total internal reflection lens and a reflector to illuminate the illuminating unit.
  • the luminaire fully utilizes light energy, has a large light effect, and can also reduce glare level and reduce User discomfort.
  • FIG. 1 is a perspective view of a lamp connected to a power module in an exemplary embodiment of the invention
  • Figure 2 is a cross-sectional view taken along line A-A of the lamp of Figure 1;
  • Figure 3 is an exploded view of the lamp of Figure 1;
  • Figure 4 is an exploded view of another angle of the lamp of Figure 1;
  • Figure 5 is a schematic view of a total internal reflection lens in the lamp of Figure 4.
  • Figure 6 is a light path diagram of the lamp of Figure 1.
  • 11-shell 111-opening; 112-inner bottom surface; 113-stud; 1131-mounting hole; 114-outer bottom surface; 1141-heat-dissipating fin; 115-wire hole; 116-threaded column;
  • 13-total internal reflection lens 131-light-in surface; 1311-center entrance surface; 1312-rotation into the surface; 132-light-emitting surface; 133-total internal reflection surface; 134-mounting ring; 135-connection surface;
  • 16-mounting assembly 161-face ring; 162-ring wall; 163-torsion spring;
  • a luminaire 10 is provided in the embodiment, and the luminaire can be electrically connected to the power module 20 to form the illuminating device 100 .
  • the luminaire 10 and the power module 20 are separately disposed such that the illuminating device 100 is adapted to various installation scenarios.
  • the power module 20 has an input terminal 21 connected to an external power source, which may be, for example, a mains AC power source or a DC power source such as a battery pack.
  • the power module 20 further includes an output end 22 electrically connected to the luminaire 10, and the output end 22 and the output end 21 can be embodied as power supply wires, which are not described herein.
  • the lamp 10 includes a housing 11, a reflector 12, a total internal reflection lens 13, and a light source module 14.
  • the reflector 12 is mounted to the housing 11, the reflector 12 has a light entrance 121 and a light exit 122; the total internal reflection lens 13 is mounted to the housing 11 and is located at the light entrance 121, and the total internal reflection lens 13 can be transparent by PMMA or PC.
  • the light source module 14 includes a plurality of light emitting units 141, and the light emitting unit 141 can be selected as a plurality of LED units.
  • the total internal reflection lens 13 has a light incident surface 131, a light exit surface 132 opposite to the light incident surface 131, and a total internal reflection surface 133 connected to the light surface 131 and the light exit surface 132.
  • the light incident surface 131 is directly connected to the housing 11.
  • the light emitting unit 141 is mounted in the light source cavity. The light emitted from the light-emitting unit 141 is sequentially emitted through the total internal reflection lens 13 and the reflector 12, and then emitted outward.
  • the light source module 14 includes a light source panel 142 that supports the light emitting unit 141 , and the light source module 14 is mounted to the housing 11 through the light source panel 142 .
  • the total internal reflection lens 13 is mounted to the light source panel 142 and mounted to the housing 11 through the light source panel 142.
  • the total internal reflection lens 13 is a rotating body, and a mounting ring 134 is disposed around the light emitting surface 132.
  • the mounting ring 134 is uniformly disposed with a through hole 1341 in the circumferential direction, and the total internal reflection lens 13 is positioned by the mounting ring 134. Thereafter, the fastener is installed through the through hole 1341 to mount the total internal reflection lens 13.
  • the total internal reflection lens 13 of the present embodiment has an annular connection surface 135 between the light incident surface 131 and the total internal reflection surface 133, and the connection surface 135 abuts on the light source panel 142.
  • the light incident surface 131 includes a central light incident surface 1311 and a rotary light incident surface 1312 surrounding the central light incident surface 1311. One end of the rotary light incident surface 1312 is connected to the central light incident surface 1311, and the other end is connected to the annular connecting surface 135.
  • the total internal reflection surface 13 may be a curved surface having at least one of a straight line, a parabola, a hyperbola, or a spline curve as a bus bar, and the light source incident from the light incident surface 131 is totally reflected to the light exit surface 132. That is, the busbar can be a straight line plus a parabola, or a parabola plus a hyperbola and so on. In this embodiment, a parabola is used as a bus bar of a curved surface.
  • the light-emitting surface 132 is at least one of a plane, a spherical surface, or a free-form surface, that is, the light-emitting surface 132 may be a plane as a whole, or a pattern in which the center of the spherical surface is a plane.
  • the surface texture of the light-emitting surface 132 may be at least one of a polished surface, an etched surface, or a spherical bead surface, that is, the surface texture of the entire light-emitting surface 132 may be a polished surface, or a pattern in which the center of the spherical bead surface is a polished surface.
  • the light-emitting surface 132 is a flat surface, and the surface texture of the light-emitting surface is a spherical bead surface (FIG. 5), which is more suitable for a plurality of medium-power LED array light sources.
  • the height of the total internal reflection lens 13 from the connection surface 135 to the light-emitting surface 132 is 15 to 17.5 mm, the outer diameter of the connection surface 135 is 17 to 20 mm, the outer diameter of the light-emitting surface 132 is 36 to 42 mm, and the diameter of the central light-incident surface 1311 is 8 to 9.5 mm, the height of the rotating light surface 1312 is 7.5 to 9 mm; the radius of the spherical beads on the light emitting surface 132 is 0.85 to 1.1 mm, and the height is 0.1 to 0.3 mm.
  • the light-injecting port 121 of the reflector 12 is disposed on the light-emitting surface 132 of the total internal reflection lens 13 and disposed coaxially with the total internal reflection lens 13.
  • the buckle 122 is disposed on the periphery of the light-emitting port 122.
  • the reflector 12 is a rotating body, and at least one of a straight line, a parabola, a hyperbola or a spline curve is a bus bar.
  • the reflector 12 is a parabola bus bar, and the reflector 12 is an electroplated scale reflector.
  • the inner reflective surface of the reflector 12 can also be a polished surface.
  • the height of the light entrance 121 to the light exit 122 of the reflector 12 is 27.2 to 29.5 mm, the diameter of the light entrance 121 is 42 to 44 mm, the diameter of the light exit 122 is 56 to 58 mm, and the thickness of the plating scale of the reflector 12 is 0.01 to 0.02. Mm.
  • a plurality of scales are uniformly arranged in the reflector 12, each of which has a width dimension extending from 3 to 3.5 mm in the circumferential direction of the reflector 12, and a length dimension extending in the axial direction of the reflector 12 of 4 to 4.5 mm.
  • the housing 11 has a circular opening 111 and a receiving cavity (not labeled) extending from the opening 111, and has an inner bottom surface 112 opposite to the opening 111, and an inner wall of the housing surrounding the receiving cavity.
  • On the inner wall of the receiving cavity between the inner bottom surface 112 and the opening 111 there is a boss 113 extending circumferentially and aligned with the mounting ring 134.
  • the boss 113 is uniformly disposed circumferentially aligned with the through hole on the mounting ring 134.
  • At least two card slots (not shown) aligned with the buckles 123 of the reflector 12 are circumferentially disposed on the inner wall between the boss 113 and the opening 111.
  • annular gasket 15 is further disposed between the mounting ring 134 and the boss 113.
  • the annular gasket 15 is uniformly disposed with a hole aligned with the through hole 1341 of the mounting ring 134 and the mounting hole 1131 of the boss 113.
  • the annular gasket 15 is made of silicone to increase the IP rating of the luminaire.
  • the housing 11 and the total internal reflection lens 13 can be isolated to prevent the heat on the housing 11 from accelerating the aging of the total internal reflection lens 13.
  • the light source module 14, the total internal reflection lens 13 and the reflector 12 are mounted in the receiving cavity of the housing 11 as follows: First, the light source panel 142 is mounted on the inner bottom surface 112 by fasteners, and the light emitting direction of the light emitting unit 141 is oriented. Opening; the connecting surface 135 of the total internal reflection lens 13 abuts against the light source plate 142, the mounting ring 134 of the total internal reflection lens 13 abuts against the boss 113, and the fastener sequentially passes through the through hole 1341 on the mounting ring 134. After the mounting hole 1131 of the 113, the total internal reflection lens 13 is fastened and mounted to the receiving cavity of the housing 11.
  • the light entrance 121 of the reflector 12 abuts on the light emitting surface 132 of the total internal reflection lens 13, and is pushed in from the opening.
  • the buckle 123 on the periphery of the light exit port 122 is engaged with the card slot of the inner wall of the housing 11 to realize the installation of the reflector.
  • the outer bottom surface 114 of the housing 11 has a hollow cylindrical portion and heat radiating fins 1141 extending radially outward from the cylindrical portion.
  • the housing 11 is made of a metal material having good thermal conductivity, such as aluminum, to facilitate heat dissipation of the light source module 14.
  • a wire hole 115 through which the wire passes is disposed between the inner bottom surface 112 and the outer bottom surface 114.
  • the luminaire 10 of the present embodiment further includes a mounting assembly 16 that is coupled to the housing 11 to mount the luminaire 10 to a predetermined position.
  • the mounting assembly 16 is mounted on the mounting threaded post 116 of the outer wall of the housing 11.
  • the mounting assembly 16 includes a face ring 161, an annular wall 162 extending from the face ring 161 toward the housing 11 and sleeved over the outer wall of the housing 11, and a pair
  • the torsion spring 163 is mounted on the annular wall 162. When the lamp 10 is mounted, the face ring 161 and the torsion spring 163 are snap-fitted to the preset mounting panel.
  • the light emitted by the light-emitting unit 141 is divided into three parts: the first portion is incident through the central light-incident surface 1311, and is emitted from the light-emitting surface 132 after being refracted a plurality of times, and the angle of the light emitted from the light-emitting surface 132 is small.
  • the light passes directly through the light inlet 121 and the light exit 122 of the reflector 12, and the second portion of the light is incident through the rotating light surface 1312, is reflected by the total internal reflection surface 133, and is emitted from the light emitting surface 132, and the light is directly worn.
  • the third portion is emitted from the light exit surface 132.
  • the light is incident on the inner surface of the reflector 12 and then reflected again, and finally exits through the light exit 122.

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

Abstract

本发明公开一种灯具，属于照明技术领域，该灯具包括：壳体；反光器，安装至所述壳体，所述反光器具有入光口和出光口；全内反射透镜，安装至所述壳体并位于所述反光器的入光口，所述全内反射透镜包括入光面、与所述入光面相对的出光面以及连接所述入光面和出光面的全内反射面，所述入光面和壳体配合形成光源腔；光源模组，包括位于所述光源腔内的发光单元。该灯具采用全内反射透镜和反光器两者为发光单元配光，该灯具充分利用光能，具有较大的光效，也能够降低眩光水平，减轻使用者的不适感。

Description

一种灯具 技术领域
本发明涉及照明技术领域，尤其涉及一种灯具。
背景技术
随着照明技术的快速发展，灯具已经是人们生活中不可或缺的组成部分。如何提高灯具的性能也成为业内研究的重点。
其中，配光元件作为灯具的重要组成部分，其配光能力对于灯具性能极为重要。目前的灯具，尤其射灯，其配光元件一般是单独采用反光杯或单独采用透镜的。然而，单独采用反光杯或透镜的灯具，在实际使用中往往存在问题。例如，单独采用透镜的灯具，其杂散光较多，容易产生眩光而导致用户使用不适。再例如单独配合反光杯的灯具，光一部分直接出射，另一部分是通过反光杯反射后射出，导致出射光的光斑过渡不够平滑。
发明内容
为了解决上述问题，本发明提供一种灯具，该灯具不仅能够充分利用光能，也能够降低眩光水平，减轻使用者的不适感。
为实现上述目的，本发明提供一种灯具，包括：
壳体；
反光器，安装至所述壳体，所述反光器具有入光口和出光口；
全内反射透镜，安装至所述壳体并位于所述反光器的入光口，所述全内反射透镜包括入光面、与所述入光面相对的出光面以及连接所述入光面和出光面的全内反射面，所述入光面和壳体配合形成光源腔；
光源模组，包括位于所述光源腔内的发光单元。
优选地，所述光源模组还包括支撑所述发光单元的光源板，所述光源板安装至所述壳体，所述全内反射透镜安装至所述光源板。
优选地，所述壳体包括开口和自开口延伸形成的收容腔；所述全内反射透镜位于所述收容腔，所述反光器安装在所述全内反射透镜与所述开口之间。
优选地，所述出光面的外围具有安装环；所述收容腔内壁上具有周向延伸的凸台；所述凸台抵持所述安装环。
优选地，所述反光器在出光口的外围设置有卡接所述壳体内壁的卡扣。
优选地，所述全内反射透镜呈回转体；所述入光面包括中心入光面和环绕所述中心入光面的回转入光面。
优选地，所述全内反射面是以直线、抛物线、双曲线或样条曲线为母线的回转曲面。
优选地，所述出光面为平面、球面或自由曲面中至少一种；所述出光面的表面纹理为抛光面、蚀刻面或球状珠面至少一种。
优选地，所述反光器为电镀鳞片反光杯；所述反光杯的母线为直线、抛物线、双曲线或样条曲线至少一种。
优选地，所述全内反射透镜的入光面直径17～20mm，出光面直径36～42mm；所述反光器的入光口和出光口间距为27.2～29.5mm，入光口外径为42～44mm，出光口外径为56～58mm。
与现有技术相比，本发明提供的灯具，采用全内反射透镜和反光器两者为发光单元配光，该灯具充分利用光能，具有较大的光效，也能够降低眩光水平，减轻使用者的不适感。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明一示范性实施例中的灯具连接电源模组的立体视图；
图2为图1所示灯具的A-A剖视图；
图3为图1所示灯具的分解图；
图4为图1所示灯具另一角度的分解图；
图5为图4所示灯具中全内反射透镜的示意图；
图6为图1所示灯具的光路图。
附图标记：
100-照明装置；10-灯具；
11-壳体；111-开口；112-内底面；113-凸台；1131-安装孔；114-外底面；1141-散热鳍片；115-过线孔；116-螺纹柱；
12-反光器；121-入光口；122-出光口；123-卡扣；
13-全内反射透镜；131-入光面；1311-中心入光面；1312-回转入光面；132-出光面；133-全内反射面；134-安装环；1341-通孔；135-连接面；
14-光源模组；141-发光单元；142-光源板；
15-环形垫圈；
16-安装组件；161-面环；162-环形壁；163-扭簧；
20-电源模组；21-输入端；22-输出端。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的实施例仅 是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1所示，本实施例提供的一种灯具10，该灯具能够电性连接电源模组20组成照明装置100。其中，灯具10和电源模组20被分离设置，使得照明装置100适配多样的安装场景。
电源模组20具有连接外部电源的输入端21，外部电源可以是例如市电的交流电源，也可以是例如电池包的直流电源。电源模组20还包括与灯具10电性连接的输出端22，输出端22和输出端21都可以体现为供电导线，在此不做赘述。
如图2所示，灯具10包括：壳体11、反光器12、全内反射透镜13以及光源模组14。反光器12安装至壳体11，反光器12具有入光口121和出光口122；全内反射透镜13安装至壳体11并位于入光口121，全内反射透镜13可以由PMMA或PC透明粒子制成；光源模组14包括若干发光单元141，发光单元141可选为若干个LED单元。
其中，全内反射透镜13具有入光面131、与入光面131相对的出光面132，以及连接入光面131和出光面132的全内反射面133，入光面131与壳体11直接配合形成光源腔(未标号)，发光单元141安装在光源腔内。发光单元141发出的光依次经过全内反射透镜13和反光器12后向外发出。
光源模组14包括支撑发光单元141的光源板142，通过光源板142将光源模组14安装至壳体11。全内反射透镜13安装至光源板142，并通过光源板142安装至壳体11。
结合图3和图4，全内反射透镜13呈回转体，其出光面132外围设置有安装环134，安装环134周向均匀设置有通孔1341，通过安装环134将全内反射透镜13定位后，紧固件穿过通孔1341将全内反射透镜13安装。本实施例的全内反射透镜13，在入光面131和全内反射面133之间具有环形的连接面135，连接面135抵接在光源板142上。入光面131包括中心入光面1311和环绕中心入光面1311的回转入光面1312，回转入光面1312的一端连接中心入光面1311，另一端连接环形的连接面135。
全内反射面13可以是以直线、抛物线、双曲线或样条曲线至少一种为母线的回转曲面，将从入光面131射入的光源全反射至出光面132处。即，母线可以是一段直线加一段抛物线，或者是一段抛物线加一段双曲线等等。本实施例中，以抛物线作为回转曲面的母线。
出光面132为平面、球面或自由曲面中至少一种，即出光面132可以整体为平面，或者是中心为球面外围为平面的模式等。出光面132的表面纹理可以为抛光面、蚀刻面或球状珠面至少一种，即可以出光面132整体的表面纹理为抛光面，或者是中心为球状珠面外围为抛光面的模式等。本实施例中，出光面132为平面，出光面的表面纹理为球状珠面(图5)，与多颗中功率LED阵列光源较为适配。
全内反射透镜13自连接面135到出光面132的高度为15～17.5mm，连接面135外径为17～20mm，出光面132外径为36～42mm；中心入光面1311直径为8～9.5mm，回转入光面1312高度为7.5～9mm；出光面132上的球状珠的半径为0.85～1.1mm，高度为0.1～0.3mm。
反光器12的入光口121环绕设置在全内反射透镜13的出光面132上，与全内反射透镜13同轴设置，其出光口122外围设置有卡扣123。反光器12呈回转体，以直线、抛物线、双曲线或样条曲线至少一种为母线。本实施例中，反光器12为以抛物线为母线，且反光器12是电镀鳞片反光杯。当然，反光器12的内反光面也可以为抛光面。
反光器12的入光口121到出光口122的高度为27.2～29.5mm，入光口121直径为42～44mm，出光口122直径为56～58mm，反光器12的电镀鳞片厚度为0.01～0.02mm。在反光器12内均匀排列多个鳞片，每一鳞片沿反光器12周向延伸的宽度尺寸为3～3.5mm，沿反光器12轴向延伸的长度尺寸为4～4.5mm。
壳体11具有圆形开口111和自开口111延伸形成的收容腔(未标号)，还具有与开口111相对的内底面112，以及环绕收容腔的壳体内壁。在内底面112与开口111之间的收容腔内壁上，具有周向延伸的并与上述安装环134对齐的凸台113，凸台113上周向均匀设置有与安装环134上的通孔对齐的安装孔1131。在凸台113和开口111之间的内壁上周向设置有至少两个与反光器12的卡扣123对齐的卡槽(图未示)。
本实施例的灯具，安装环134和凸台113之间还设置有环形垫圈15，环形垫圈15上周向均匀设置有与安装环134的通孔1341、凸台113的安装孔1131对齐的孔。环形垫圈15由硅胶制成，用于提高灯具的IP等级，另外，可以隔离壳体11和全内反射透镜13，避免壳体11上的热量加快全内反射透镜13的老化。
在壳体11的收容腔中安装光源模组14、全内反射透镜13和反光器12步骤如下：先将光源板142通过紧固件安装在内底面112上，其发光单元141的发光方向朝向开口；全内反射透镜13的连接面135抵接光源板142，全内反射透镜13的安装环134与凸台113抵接，紧固件依次穿过安装环134上的通孔1341、凸台113的安装孔1131后将全内反射透镜13紧固安装在壳体11的收容腔；反光器12的入光口121抵接在全内反射透镜13的出光面132上，其从开口推入容纳腔中过程中，出光口122外围的卡扣123与壳体11内壁的卡槽卡接，实现反光器的安装。
壳体11的外底面114上具有中空的柱状部，和自柱状部径向向外延伸的散热鳍片1141。该壳体11由具有良好导热性的金属材料制成，例如铝，有助于光源模组14的散热。在内底面112和外底面114之间贯通设置有供导线穿过的过线孔115。
本实施例的灯具10还包括与壳体11连接将灯具10安装到预设位置的安装组件16。安装组件16安装在壳体11外壁的安装螺纹柱116上，安装组件16包括面环161、从面环161向壳体11方向延伸并套设在壳体11外壁的环形壁162，以及一对安装于 环形壁162上的扭簧163，安装灯具10时，面环161和扭簧163卡持连接于预设的安装面板上。
如图6所示，发光单元141发出的光，分为三大部分：第一部分经过中心入光面1311入射，多次折射后从出光面132出射，其从出光面132出射的角度较小，光线直接穿过反光器12的入光口121和出光口122后射出；第二部分光经过回转入光面1312入射，在全内反射面133发生反射后从出光面132射出，光线直接穿过反光器12的入光口121和出光口122后射出；第三部分从出光面132出射的角度较大，光线入射到反光器12的内表面后再次反射出去，最终经出光口122出射。通过全内反射透镜13和反光器12的结合，既减轻了眩光问题，也能使得出射光的光斑过渡平滑。
以上所述的具体实例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种灯具，包括：
    壳体；
    反光器，安装至所述壳体，所述反光器具有入光口和出光口；
    全内反射透镜，安装至所述壳体并位于所述反光器的入光口，所述全内反射透镜包括入光面、与所述入光面相对的出光面以及连接所述入光面和出光面的全内反射面，所述入光面和壳体配合形成光源腔；
    光源模组，包括位于所述光源腔内的发光单元。
  2. 根据权利要求1所述的灯具，其中，所述光源模组还包括支撑所述发光单元的光源板，所述光源板安装至所述壳体，所述全内反射透镜安装至所述光源板。
  3. 根据权利要求1所述的灯具，其中，所述壳体包括开口和自开口延伸形成的收容腔；所述全内反射透镜位于所述收容腔，所述反光器安装在所述全内反射透镜与所述开口之间。
  4. 根据权利要求3所述的灯具，其中，所述出光面的外围具有安装环；所述收容腔内壁上具有周向延伸的凸台；所述凸台抵持所述安装环。
  5. 根据权利要求3所述的灯具，其中，所述反光器在出光口的外围设置有卡接所述壳体内壁的卡扣。
  6. 根据权利要求1-5任一项所述的灯具，其中，所述全内反射透镜呈回转体；所述入光面包括中心入光面和环绕所述中心入光面的回转入光面。
  7. 根据权利要求6所述的灯具，其中，所述全内反射面是以直线、抛物线、双曲线或样条曲线为母线的回转曲面。
  8. 根据权利要求6所述的灯具，其中，所述出光面为平面、球面或自由曲面中至少一种；所述出光面的表面纹理为抛光面、蚀刻面或球状珠面至少一种。
  9. 根据权利要求6所述的灯具，其中，所述反光器为电镀鳞片反光杯；所述反光杯的母线为直线、抛物线、双曲线或样条曲线至少一种。
  10. 根据权利要求1所述的灯具，其中，所述全内反射透镜的入光面直径17～20mm，出光面直径36～42mm；所述反光器的入光口和出光口间距为27.2～29.5mm，入光口外径为42～44mm，出光口外径为56～58mm。
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CN207349884U (zh) * 2017-06-13 2018-05-11 苏州欧普照明有限公司 一种灯具
CN109253417B (zh) * 2018-10-16 2023-12-29 苏州欧普照明有限公司 光学模组及光源模组

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