WO2016041430A1 - 一种led聚光灯 - Google Patents

一种led聚光灯 Download PDF

Info

Publication number
WO2016041430A1
WO2016041430A1 PCT/CN2015/087579 CN2015087579W WO2016041430A1 WO 2016041430 A1 WO2016041430 A1 WO 2016041430A1 CN 2015087579 W CN2015087579 W CN 2015087579W WO 2016041430 A1 WO2016041430 A1 WO 2016041430A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
optical axis
led
refracted
light source
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2015/087579
Other languages
English (en)
French (fr)
Inventor
王万林
邓诗涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opple Lighting Co Ltd
Original Assignee
Opple Lighting 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
Priority claimed from CN201420535919.6U external-priority patent/CN204141320U/zh
Priority claimed from CN201410474943.8A external-priority patent/CN105485557A/zh
Application filed by Opple Lighting Co Ltd filed Critical Opple Lighting Co Ltd
Publication of WO2016041430A1 publication Critical patent/WO2016041430A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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

Definitions

  • the invention relates to a lighting device, in particular to an LED spotlight.
  • LEDs have been popularized for lighting fixtures.
  • the color quality of LEDs is required to be higher and higher in specific illuminations, and the light color distribution requirements of the object surface are getting higher and higher to meet the humanized needs of the face.
  • the LED is 180° light, which has the characteristics of severe glare and uneven transition of the spot effect.
  • a narrow angle beam is needed, which requires the design of the optical system of the LED with the focused beam.
  • the invention discloses an LED spotlight, comprising: an LED light source, a collecting lens and a reflecting cup disposed outside the collecting lens, the collecting lens comprising an inner surface close to the LED light source and away from the LED light source An outer surface and an optical axis at a center of the concentrating lens; the inner surface including a toroid surrounding the optical axis and a top surface through which the optical axis passes; the light incident to the torus
  • the reflecting cup direction is refracted, and light incident on the top surface is refracted toward the optical axis; light transmitted from the annular surface is refracted through the outer surface and then emitted to the reflective cup, and the reflective cup is Reflected parallel to a first outgoing light of the optical axis; and light transmitted from the top surface is refracted by the outer surface and exits to form a second outgoing light that is adjacent to and parallel to the optical axis.
  • the outer surface is semi-circular or semi-circular with an axis of symmetry of the optical axis.
  • the top surface is a convex surface that is convex toward the LED light source.
  • the portion of the outer surface on which the second outgoing light is emitted is in a convex direction away from the convex surface of the LED light source.
  • the convex surface is made by matte sanding.
  • the ratio of the width of the LED light source to the width of the cavity formed by the collecting lens facing the inner surface of the LED light source is between 50% and 75%.
  • the angle of light refracted from the top surface is 0-20° with respect to the optical axis; the angle of light refracted from the torus is 20-70° from the optical axis.
  • the annulus is a cylindrical surface.
  • the top surface and the toroid are connected to a junction point; when the distance between the junction point and the LED light source increases, an angle between the light refracted by the top surface and the optical axis Increasing, an angle between the light refracted by the torus and the optical axis is decreased; when the distance between the boundary point and the LED light source is decreased, the light refracted by the top surface and the optical axis The angle of the light is reduced, and the angle between the light refracted by the torus and the optical axis is increased.
  • the LED light source is plural, and each of the LED light sources is provided with one of the collecting lenses; and the plurality of collecting lenses form a collecting lens group.
  • the light center obtained after the aggregation has high light intensity, low glare value and uniform spot;
  • the size of the reflector cup is greatly reduced, reducing the space occupied.
  • FIG. 1 is a schematic view showing the structure and light-emitting of an LED spotlight according to a preferred embodiment of the present invention.
  • Figure 2a is a first perspective view of the collecting lens of the present invention
  • Figure 2b is a second perspective view of the concentrating lens of the present invention.
  • the LED spotlight includes an LED light source 30 disposed inside, a condenser lens 10 disposed outside the LED light source 30 for collecting light emitted from the LED light source 30, and a light collecting lens 10 disposed outside the collecting lens 10 for transmitting the light from the collecting lens 10.
  • the reflective cup 20 is reflected by light.
  • the concentrating lens 10 includes an inner surface 11 adjacent to the LED light source 30, an outer surface 12 away from the LED light source 30, and an optical axis 13 at the center of the concentrating lens 10.
  • the light is first incident from the inner surface 11 into the collecting lens 10 and then emitted from the outer surface 12.
  • the concentrating lens 10 is disposed in an accommodating space formed by the reflecting cup 20 by a mounting base (not shown), and the reflecting cup 20 is also supported on the mounting base.
  • the transmitted and reflected light should be emitted independently of each other.
  • the concentrating lens 10 is configured as follows: the inner surface 11 includes a toroidal surface 111 and a top surface 112, the annular surface 111 is disposed around the optical axis 13 so as to surround the LED light source 30, and the optical axis 13 passes through the top surface 112, ie The top surface 112 faces the LED light source 30 with a slight offset from the LED light source 30 or with the optical axis 13. Due to different positional settings of different transmissive surfaces and the principle of refraction of light, the light incident on the toroidal surface 111 and the top surface 112 is deflected in a different direction after the first refraction.
  • the light incident on the toroidal surface 111 on the side is refracted toward the reflection cup 20, and the light incident on the top surface 112 of the end surface is refracted toward the optical axis 13. Then, after the first refraction, the optical paths of the light split to the toroidal surface 111 and the top surface 112 have been separated.
  • the outer surface 12 is twice refracted, and the light transmitted from the annular surface 111 is refracted by the outer surface 12 and then emitted to the reflective cup 20, and transmitted from the top surface 112.
  • the light is refracted through the outer surface 12 and is emitted from the light exit opening of the reflector cup 20.
  • the optical paths of the light split to the toroidal surface 111 and the top surface 112 are further separated, and the light transmitted by the annulus 111 is incident at an angle to the optical axis 13 to the reflective cup 20, and passes through the reflective cup 20
  • the first outgoing light A which is reflected and collimated to exit the parallel optical axis 13, the light transmitted by the top surface 112 forms a second outgoing light B near the optical axis 13 and parallel to the optical axis 13 after secondary refraction.
  • the first outgoing light is concentrated on a portion of the reflective cup 20 near the outer edge to form external concentrated light; and the second outgoing light is concentrated on a portion close to the optical axis 13 to form a central concentrated light having a higher light intensity.
  • the light from the LED light source 30 is separated into two beams, and each light is collected to achieve a concentrated distribution.
  • the light transmitted from the annulus 111 is more deflected toward the reflecting cup 20, so that the reflection incident on the reflecting cup 20 is closer to the bottom of the reflecting cup 20.
  • the reflection point is also relatively located outside the reflective cup 20, and when the reflection point is near the bottom, The size of the reflector cup 20 can be reduced a lot.
  • the angle of deflection of the refracted light is 10-40°, and the angle between the light projected onto the reflective cup 20 and the optical axis 13 is 50-80°, and accordingly, The angle between the light and the normal direction of the surface of the reflector cup 20 (i.e., the angle of incidence) is reduced. As the angle of incidence decreases and the point of reflection is closer to the outer surface 12, the size of the reflector cup 20 can be reduced.
  • the outer surface 12 may also be formed by symmetrical rotation of any free curved surface to perform secondary refraction of the emitted light, but the shape of the curved surface should ensure that the light reflected from the reflective cup 20 and the light emitted from the outer surface 12 are parallel to The first outgoing light A and the second outgoing light B of the optical axis 13.
  • the top surface 112 may be configured as a convex surface that is convex toward the LED light source 30.
  • the surface convex surface is used to enhance the refraction effect of the light incident on the LED light source 30 of the top surface 112, so that the center outgoing light is closer to the optical axis 13, and the center outgoing light is narrower, which can be applied to occasions requiring emphasis illumination.
  • the width of the central narrow beam and the peripheral wide beam are adjustable. Specifically, since the boundary between the incident top surface 112 and the annular surface 111 is at the connection surface between the center of the LED light source 30 and the boundary line between the top surface 112 and the annular surface 111, the area of the top surface 112 can be enlarged or reduced. The angle between the optical axis 13 and the above-mentioned interface is enlarged or reduced, and the larger the angle is, the wider the transmitted light is, and vice versa.
  • Another adjustment may be to adjust the height of the annulus 111.
  • the top surface 112 and the annular surface 111 are connected to a junction point, and the cross section of the collecting lens formed by the top surface 112 and the annular surface 111 can be regarded as a substantially rectangular shape.
  • the width of the annular surface 111 is fixed, that is, When the bottom of the rectangle is constant, the distance between the junction point and the LED light source 30 (ie, the height of the top surface 112 or the height of the rectangle) increases or decreases, and the diagonal of the rectangle (ie, the separation into the top surface 112)
  • the angle between the boundary line of the toroid 111 and the top surface 112 also increases or decreases.
  • the angle between the diagonal of the rectangle and the top surface 112 increases, the angle between the light refracted by the top surface 112 and the optical axis 13 increases, and the angle between the light refracted by the annular surface 111 and the optical axis 13 decreases.
  • the angle between the diagonal of the rectangle and the top surface 112 is decreased, the angle between the light refracted by the top surface 112 and the optical axis 13 is decreased, and the angle between the optical fiber refracted by the annular surface 111 and the optical axis 13 is increased. Therefore, in the above embodiment, the arrangement of 20° as the boundary angle separating the first outgoing light A and the second outgoing light B is variable, and can be freely selected between 0 and 90° depending on the actual situation.
  • a collecting lens 10 in the above embodiment is provided for each of the LED light sources 30, and the plurality of collecting lenses 10 form a collecting lens group.
  • the concentrating lens group can be integrally formed and matched on the corresponding LED light source 30.

Landscapes

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

Abstract

一种LED聚光灯，包括：LED光源（30）、聚光透镜（10）及设于聚光透镜外的反射杯（20），聚光透镜包括靠近LED光源的内表面（11）、远离LED光源的外表面（12）及位于聚光透镜中心的光轴（13）；内表面包括环绕光轴的环面（111）及中心由光轴穿过的顶面（112）；入射至环面的光向反射杯折射，入射至顶面的光向光轴折射；从环面透射的光经外表面折射后岀射至反射杯，并由反射杯反射出平行于光轴的第一出射光（A）；从顶面透射的光经外表面折射后岀射，形成一靠近且平行于光轴的第二出射光（B）。这种聚光灯，通过反射及透射的配合可配出一中心光强高、眩光值低且光色均匀的LED聚光。

Description

一种LED聚光灯 技术领域
本发明涉及照明设备，尤其涉及一种LED聚光灯。
技术背景
LED用于照明灯具已经开始普及，LED的光色品质要求在特定的照面也越来越高，被照物面的光色分布要求越来越高，来满足照面的人性化需求。但是LED是180°发光，其具有眩光严重，光斑效果过渡不均等特点。而在店铺、艺术馆、会议室等商业照明领域，需要用到窄角度光束，这就需要LED配合聚焦光束的光学系统设计。
目前通用的聚集光束技术是采用二次全反射式透镜，透镜是多个小透镜的阵列集成在一起，每个小透镜对单颗LED进行单独配光，来达到聚焦光线的目的。然而，这种技术存在中间障碍物在被照面上留下重影的缺点；另外一种技术是采用反射杯，反射杯直接对COB(板上芯片封装)的LED进行聚焦达到配光的目的，这种技术又存在光色不能完全混合均匀的缺陷，从而产生黄圈。
因此，亟需一种新型的LED聚光灯，其对LED光源的聚光效果更佳，具有减少重影、眩光的聚集效果，且其聚集的光中心光强高，光斑均匀。
发明概要
为了克服上述技术缺陷，本实用新型的目的在于提供一种LED聚光灯。
本发明公开了一种LED聚光灯，包括：LED光源、聚光透镜及设于所述聚光透镜外的反射杯，所述聚光透镜包括靠近所述LED光源的内表面、远离所述LED光源的外表面及位于所述聚光透镜中心的光轴；所述内表面包括环绕所述光轴的环面及中心由所述光轴穿过的顶面；入射至所述环面的光向所述反射杯方向折射，入射至所述顶面的光向所述光轴折射；从所述环面透射的光经所述外表面折射后出射至所述反射杯，并由所述反射杯反射出平行于 所述光轴的第一出射光；从所述顶面透射的光经所述外表面折射后出射，形成一靠近且平行于所述光轴的第二出射光。
优选地，所述外表面呈以所述光轴为对称轴的半圆形或类半圆形。
优选地，所述顶面为向所述LED光源凸起的凸面。
优选地，所述外表面上出射所述第二出射光的部分呈一凸起方向远离所述LED光源的凸透面。
优选地，所述凸透面经雾面磨砂制成。
优选地，所述LED光源的宽度与所述聚光透镜面向所述LED光源的内表面围设形成的空腔宽度的比值在50％～75％间。
优选地，从所述顶面折射的光与所述光轴的夹角为0‐20°；从所述环面折射的光与所述光轴的夹角为20‐70°。
优选地，所述环面为圆柱面。
优选地，所述顶面与所述环面连接于一交界点；当所述交界点与所述LED光源的距离增大时，所述顶面所折射的光线与所述光轴的夹角增大，所述环面所折射的光线与所述光轴的夹角减小；当所述交界点与所述LED光源的距离减小时，所述顶面所折射的光线与所述光轴的夹角减小，所述环面所折射的光线与所述光轴的夹角增大。
优选地，经所述外表面折射后投射至所述反射杯的光线与所述光轴的夹角为50‐80°。
优选地，所述LED光源为多个，每一所述LED光源外均设有一所述聚光透镜；多个所述聚光透镜形成一聚光透镜组。
采用了上述技术方案后，与现有技术相比，具有以下有益效果：
1.聚集后得到的光中心光强高、眩光值低、光斑均匀；
2.反射杯的尺寸大大减小，降低占用空间。
附图说明
图1为本发明一优选实施例中LED聚光灯的结构及出光示意图。
图2a为本发明聚光透镜的第一透视图；
图2b为本发明聚光透镜的第二透视图。
附图标记：
10‐聚光透镜、11‐内表面、111‐环面、112‐顶面、12‐外表面、121‐凸透面、13‐光轴、14‐固定面；
20‐反射杯；
30‐LED光源。
发明内容
以下结合附图与具体实施例进一步阐述本发明的优点。
参阅图1，为本发明一实施例中LED聚光灯的结构示意图。LED聚光灯包括有置于内部的LED光源30、设于LED光源30外部用作对LED光源30的出光进行聚集的聚光透镜10，以及设于聚光透镜10外用作对从聚光透镜10透射出的光进行反射的反射杯20。
结合图1、图2a及图2b，聚光透镜10包括有一靠近LED光源30的内表面11、远离LED光源30的外表面12及位于聚光透镜10中心的光轴13，则LED光源30的出光首先将从该内表面11射入至聚光透镜10内，再从外表面12射出。聚光透镜10通过一安装基础(未示出)设置在反射杯20形成的容纳空间内，反射杯20同样支撑于该安装基础上。为了使聚光透镜10及反射杯20透射、反射配合射出的光中心光强较高，无重叠影，则透射与反射的光应互相独立出射。因此，对聚光透镜10配置如下：内表面11包括有环面111及顶面112，环面111环绕光轴13设置，从而环绕LED光源30，而光轴13则穿过顶面112，即顶面112正对LED光源30或与光轴13稍稍偏移面对LED光源30。由于不同透射面的不同的位置设置，以及光的折射原理，使得射入环面111及顶面112的光在经过第一次折射后偏转方向不同， 入射至位于侧面的环面111的光向反射杯20即向外折射，而入射至位于端面的顶面112的光向光轴13折射。则经过第一次的折射后，分射至环面111及顶面112的光的光路已经分离。而LED光源30的出光从该外表面12射出时，由该外表面12进行二次折射，从环面111透射的光经外表面12折射后出射至反射杯20，而从顶面112透射的光经外表面12折射后从反射杯20的出光口射出。在该二次折射后，分射至环面111及顶面112的光的光路进一步地分离，由环面111透射的光与光轴13呈一角度射至反射杯20，并通过反射杯20反射并准直从而射出平行光轴13的第一出射光A，由顶面112透射的光在二次折射后形成靠近光轴13且平行于光轴13的第二出射光B。其中，第一出射光集中在反射杯20靠近外边缘的部分，以形成外部聚集光；而第二出射光集中在靠近光轴13的部分，以形成光强较高的中心聚光。通过聚光透镜10的内表面11及外表面12结构配置，以及与反射杯20的配合使用，将LED光源30的出光分离成两束出光，并对每一出光进行聚集，以达到聚集的配光。同时，由于二次折射的效果，使得从环面111透射而出的光出射时，更加偏向反射杯20，从而在入射到反射杯20的反射处更加靠近反射杯20的底部。通常而言，该出射光入射到反射杯20上时，由于与反射杯20呈的入射角较大，则反射点也相对地位于反射杯20较外部的位置，而当该反射点靠近底部后，反射杯20的尺寸就可降低许多。
在一实施例中，经过外表面12折射后，折射光线的偏折角度为10‐40°，则投射到反射杯20上的光线与光轴13的夹角为50‐80°，相应地，该光线与反射杯20表面法线方向的夹角(即入射角)减小。由于该入射角减小，反射点较靠近外表面12，反射杯20的尺寸便可减小。
对于外表面12的设置，其成形为以光轴13为对称轴的半圆形或类半圆形，以加强二次折射的折射效果。该二次折射效果越大时，入射到反射杯20的反射点也就越靠近反射杯20的底部，反射杯20的尺寸便可设计的更小。
上述实施例中，外表面12也可以是任意自由曲面对称旋转形成，对出光进行二次折射，但曲面的形状应保证从反射杯20反射出的光和从外表面12出射的光为平行于光轴13的第一出射光A及第二出射光B。
当需要对中心出射光的宽度要求更窄时，即两次折射后更靠近光轴13，则可将顶面112配置为向所述LED光源30凸起的凸面。利用表面凸起的透射面加强入射至顶面112的LED光源30的光的折射效果，从而中心的出射光更加靠近光轴13，中心出射光更窄，可应用在需要重点照明的场合上。
在上述实施例上进一步地或是可选地，外表面12的中心部分或其顶部，即出射第二出射光B的部分呈一凸起方向远离LED光源30的凸透面121。同样利用凸起的透射面，加强第二出射光B在经过外表面12时的折射效果，使其更加靠近光轴13。
上述实施例的结合或单一配置时，聚光透镜10的中心区域为双凸或平凸结构，根据需要对中心区域采用不同的实施方式如顶面112和外表面12的顶部择一或择二为凸起结构。
优选的实施方式中，凸透面121的制成过程中，经过雾面磨砂处理，避免凸透聚光透镜10产生凸透镜呈现的效果，使得第二出射光B为散射光，该散射光填充第一出射光A和第二出射光B之间的部分，从而使第一出射光A与第二出射光B结合形成一整体光束射出，并消除了产生眩光的可能。
由于对出射光光色均匀的要求，可将环面111设置为圆柱面，从环面111出射的光均匀出射，不会有光强分布不均匀的情况。
又一实施例中，LED光源30的宽度与聚光透镜10面向LED光源30的内表面11围设形成的空腔的宽度的比值在50％～70％之间，使得LED光源30被包覆在聚光透镜10的空腔内，不会紧贴造成LED光源30的热量消散至聚光透镜10上，同时也减少了聚光透镜10的占用空间，提高出光效果。
对于本发明实施例而言，中心窄光束与周边宽光束的宽度是可调节的。 具体为：由于入射至顶面112和环面111的分界在于LED光源30的中心与顶面112和环面111的交界线的连接面处，因此，扩大或缩小顶面112的面积，即可扩大或缩小光轴13与上述连界面间的夹角，该夹角越大中心透射光越宽，反之亦然。一优选实施例中，该夹角，即顶面112透射的光与光轴13的夹角为0‐20°间，从LED光源30发出的中心小角度光入射至顶面112，而环面111透射的光与光轴13的夹角为20‐70°间，从LED光源30发出的大角度光入射至反射杯20上，并由反射器准直，最终产生均匀光色分布的窄光束配光。
另一调节方式可以是调节环面111的高度。顶面112与环面111连接于一交界点，同时可把顶面112和环面111形成的聚光透镜的截面可看成一个基本呈矩形的形状，当环面111的宽度固定，也就是该矩形的底不变时，该交界点与LED光源30的距离(即顶面112的高度或上述矩形的高)增大或减小时，该矩形的对角线(即分隔射入顶面112和环面111的分界线)与顶面112间的夹角也随之增大或减小。当该矩形的对角线与顶面112的夹角增大时，顶面112折射的光线与光轴13的夹角增大，环面111折射的光线与光轴13的夹角减小；当该矩形的对角线与顶面112的夹角减小时，顶面112折射的光线与光轴13的夹角减小，环面111折射的光纤与光轴13的夹角增大。因此，上述实施例中将20°作为分隔第一出射光A和第二出射光B的分界角的配置是可变的，可根据实际情况在0‐90°间自由选择。
由于现有LED聚光灯中一般均设有多个LED光源30，对于每一LED光源30，均设有一上述实施例中的聚光透镜10，则多个聚光透镜10形成一聚光透镜组。该聚光透镜组可一体成型，匹配设置在对应的LED光源30上。
应当注意的是，本发明的实施例有较佳的实施性，且并非对本发明作任何形式的限制，任何熟悉该领域的技术人员可能利用上述揭示的技术内容变更或修饰为等同的有效实施例，但凡未脱离本发明技术方案的内容，依据本 发明的技术实质对以上实施例所作的任何修改或等同变化及修饰，均仍属于本发明技术方案的范围内。

Claims (11)

  1. 一种LED聚光灯，包括：LED光源、聚光透镜及设于所述聚光透镜外的反射杯，所述聚光透镜包括靠近所述LED光源的内表面、远离所述LED光源的外表面及位于所述聚光透镜中心的光轴，其特征在于，
    所述内表面包括环绕所述光轴的环面及中心由所述光轴穿过的顶面；
    入射至所述环面的光向所述反射杯方向折射，入射至所述顶面的光向所述光轴折射；
    从所述环面透射的光经所述外表面折射后出射至所述反射杯，并由所述反射杯反射出平行于所述光轴的第一出射光；
    从所述顶面透射的光经所述外表面折射后出射，形成一靠近且平行于所述光轴的第二出射光。
  2. 如权利要求1所述的LED聚光灯，其特征在于，
    所述外表面呈以所述光轴为对称轴的半圆形或类半圆形。
  3. 如权利要求1或2所述的LED聚光灯，其特征在于，
    所述顶面为向所述LED光源凸起的凸面。
  4. 如权利要求3所述的LED聚光灯，其特征在于，
    所述外表面上出射所述第二出射光的部分呈一凸起方向远离所述LED光源的凸透面。
  5. 如权利要求4所述的LED聚光灯，其特征在于，
    所述凸透面经雾面磨砂制成。
  6. 如权利要求1所述的LED聚光灯，其特征在于，
    所述LED光源的宽度与所述聚光透镜面向所述LED光源的内表面围设形成的空腔宽度的比值在50％～75％间。
  7. 如权利要求1所述的LED聚光灯，其特征在于，
    从所述顶面折射的光与所述光轴的夹角为0‐20°；
    从所述环面折射的光与所述光轴的夹角为20‐70°。
  8. 如权利要求1所述的LED聚光灯，其特征在于，
    所述环面为圆柱面。
  9. 如权利要求1所述的LED聚光灯，其特征在于，
    所述顶面与所述环面连接于一交界点；
    当所述交界点与所述LED光源的距离增大时，所述顶面所折射的光线与所述光轴的夹角增大，所述环面所折射的光线与所述光轴的夹角减小；
    当所述交界点与所述LED光源的距离减小时，所述顶面所折射的光线与所述光轴的夹角减小，所述环面所折射的光线与所述光轴的夹角增大。
  10. 如权利要求9所述的LED聚光灯，其特征在于，
    经所述外表面折射后投射至所述反射杯的光线与所述光轴的夹角为50‐80°。
  11. 如权利要求1所述的LED聚光灯，其特征在于，
    所述LED光源为多个，每一所述LED光源外均设有一所述聚光透镜；
    多个所述聚光透镜形成一聚光透镜组。
PCT/CN2015/087579 2014-09-17 2015-08-20 一种led聚光灯 Ceased WO2016041430A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201410474943.8 2014-09-17
CN201420535919.6U CN204141320U (zh) 2014-09-17 2014-09-17 一种led聚光灯
CN201410474943.8A CN105485557A (zh) 2014-09-17 2014-09-17 一种led聚光灯
CN201420535919.6 2014-09-17

Publications (1)

Publication Number Publication Date
WO2016041430A1 true WO2016041430A1 (zh) 2016-03-24

Family

ID=55532540

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/087579 Ceased WO2016041430A1 (zh) 2014-09-17 2015-08-20 一种led聚光灯

Country Status (1)

Country Link
WO (1) WO2016041430A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111947111A (zh) * 2020-09-16 2020-11-17 成都派斯光学有限公司 一种照射角度可调的透镜组件、灯具及其调光方法
CN114353013A (zh) * 2020-10-14 2022-04-15 台州市远大工业设计有限公司 一种led配光装置及用于替代卤素灯丝的led组合光源
CN114442403A (zh) * 2022-01-28 2022-05-06 普联技术有限公司 灯杯、照明系统以及监控设备
CN114963082A (zh) * 2021-09-16 2022-08-30 青岛易来智能科技股份有限公司 透镜及照明设备
CN116480982A (zh) * 2023-05-12 2023-07-25 冯光友 一种反射加折射的高光效组合灯杯
CN116518330A (zh) * 2023-06-20 2023-08-01 山东新华医疗器械股份有限公司 一种光学透镜、照明装置及手术灯

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2829103Y (zh) * 2005-05-09 2006-10-18 葛世潮 高效率发光二极管
CN201819153U (zh) * 2010-07-27 2011-05-04 叶秀敏 多功能光学组套
CN202017920U (zh) * 2011-02-14 2011-10-26 上海开特照明设备有限公司 一种宽幅照明的led照明灯及灯具
CN103307552A (zh) * 2013-06-20 2013-09-18 邱吉鼎 Led灯具的调光装置及led灯具
CN104024728A (zh) * 2011-09-09 2014-09-03 吉可多公司 具有清晰限定的场角的基于led光源
CN204141320U (zh) * 2014-09-17 2015-02-04 欧普照明股份有限公司 一种led聚光灯

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2829103Y (zh) * 2005-05-09 2006-10-18 葛世潮 高效率发光二极管
CN201819153U (zh) * 2010-07-27 2011-05-04 叶秀敏 多功能光学组套
CN202017920U (zh) * 2011-02-14 2011-10-26 上海开特照明设备有限公司 一种宽幅照明的led照明灯及灯具
CN104024728A (zh) * 2011-09-09 2014-09-03 吉可多公司 具有清晰限定的场角的基于led光源
CN103307552A (zh) * 2013-06-20 2013-09-18 邱吉鼎 Led灯具的调光装置及led灯具
CN204141320U (zh) * 2014-09-17 2015-02-04 欧普照明股份有限公司 一种led聚光灯

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111947111A (zh) * 2020-09-16 2020-11-17 成都派斯光学有限公司 一种照射角度可调的透镜组件、灯具及其调光方法
CN114353013A (zh) * 2020-10-14 2022-04-15 台州市远大工业设计有限公司 一种led配光装置及用于替代卤素灯丝的led组合光源
CN114963082A (zh) * 2021-09-16 2022-08-30 青岛易来智能科技股份有限公司 透镜及照明设备
CN114963082B (zh) * 2021-09-16 2024-02-06 青岛易来智能科技股份有限公司 透镜及照明设备
CN114442403A (zh) * 2022-01-28 2022-05-06 普联技术有限公司 灯杯、照明系统以及监控设备
CN116480982A (zh) * 2023-05-12 2023-07-25 冯光友 一种反射加折射的高光效组合灯杯
CN116518330A (zh) * 2023-06-20 2023-08-01 山东新华医疗器械股份有限公司 一种光学透镜、照明装置及手术灯

Similar Documents

Publication Publication Date Title
US10295153B2 (en) Optical system for producing uniform illumination
WO2016041430A1 (zh) 一种led聚光灯
US9772091B2 (en) Lens and omnidirectional illumination device including the lens
CN102853374B (zh) Led舞台灯透镜组及led舞台灯
US8950906B2 (en) Zoom lens with multi-layers for illumination
CN204141320U (zh) 一种led聚光灯
CN103631017A (zh) 一种led可变焦成像灯的光学系统
CN105221942A (zh) 一种照明灯具
JP2014115506A (ja) レンズ体及び光源ユニット
JP2013214449A (ja) トロイダルレンズおよび照明装置
CN215954056U (zh) 一种组合型光源收集器
JP6676616B2 (ja) 二焦点懐中電灯
CN105485557A (zh) 一种led聚光灯
CN102901045B (zh) 用于大功率led光源的菲涅尔透镜
CN205299189U (zh) 一种照明装置
WO2017071520A1 (zh) 一种照明灯具
US10794565B2 (en) Dielectric collimator with a rejecting center lens
JP2011049001A (ja) 照明装置
CN205090204U (zh) 一种照明灯具
CN211289688U (zh) 一种照明装置
CN104180200A (zh) 照明装置
CN204153700U (zh) 大功率led聚光透镜及led聚光透镜组
WO2021103892A1 (zh) 照明装置及照明系统
CN206514241U (zh) 一种可调焦的二次透镜组合结构
CN207080826U (zh) 一种复合全反射led射灯透镜

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15841839

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15841839

Country of ref document: EP

Kind code of ref document: A1