WO2018094880A1 - 一种超薄背光源透镜 - Google Patents

一种超薄背光源透镜 Download PDF

Info

Publication number
WO2018094880A1
WO2018094880A1 PCT/CN2017/073762 CN2017073762W WO2018094880A1 WO 2018094880 A1 WO2018094880 A1 WO 2018094880A1 CN 2017073762 W CN2017073762 W CN 2017073762W WO 2018094880 A1 WO2018094880 A1 WO 2018094880A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emitting
top surface
center
incident
Prior art date
Application number
PCT/CN2017/073762
Other languages
English (en)
French (fr)
Inventor
张志才
Original Assignee
深圳市明智塑胶制品有限公司
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 CN201621258811.2U external-priority patent/CN206321913U/zh
Priority claimed from CN201621258812.7U external-priority patent/CN206504274U/zh
Application filed by 深圳市明智塑胶制品有限公司 filed Critical 深圳市明智塑胶制品有限公司
Priority to JP2019540478A priority Critical patent/JP6857739B2/ja
Priority to KR1020197010563A priority patent/KR102264371B1/ko
Publication of WO2018094880A1 publication Critical patent/WO2018094880A1/zh
Priority to US16/378,548 priority patent/US10838256B2/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
    • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Definitions

  • the present invention relates to the field of lens technologies, and in particular, to an ultra-thin backlight lens.
  • Liquid crystal televisions generally use a direct-lit LED backlight as a light source behind the liquid crystal panel.
  • the direct-lit LED backlight is usually composed of an LED lamp and a lens.
  • the lens can evenly illuminate the LED lamp to achieve uniform brightness of the liquid crystal panel, further improving the picture quality of the LCD TV.
  • the LED lamp is generally disposed at the center of the lens, the light is emitted from the lens, and the light emitted from the center is relatively strong, resulting in a brighter center and a darker surrounding, which makes the luminance unevenly distributed.
  • Conventional illumination distances are typically 15-35 mm.
  • Irradiation distance and lens thickness are important factors in determining the thickness of LCD TVs.
  • the technical problem to be solved by the present invention is to provide a uniform light divergence according to the above-mentioned deficiencies of the prior art.
  • An ultra-thin backlight lens includes a lens body that is rotationally symmetric along a central axis, the lens body includes a light-emitting top surface and a light-reflecting bottom surface that are horizontally disposed, and a vertically disposed light-emitting side surface on the light-emitting side surface
  • the edge and the lower edge are respectively connected to the outer edge of the light-emitting top surface and the outer edge of the reflective bottom surface, and the light-receiving bottom surface is provided with a light source mounting hole, and the inner wall of the light source mounting hole is a light-incident surface, and the light-incident surface a lower edge is connected to an inner edge of the reflective bottom surface;
  • a center of the light-emitting top surface is provided with an upwardly convex light-emitting bump, and a center of the light-incident surface is provided with a downwardly convex light-incident bump;
  • Top central area The surface of the domain is coated with a reflective coating
  • the surface of the light-emitting bump and the light-incident bump are curved surfaces.
  • the light-emitting bump is covered or inserted into the light-transmitting hole by the reflective coating.
  • the shape of the reflective coating and the position of the light-transmissive hole are rotationally symmetric with respect to the center of the light-emitting top surface
  • the center of the light-emitting top surface is provided with an arc-shaped recess.
  • the light-emitting side surface is formed by connecting a plurality of light-emitting planes and a plurality of light-emitting arc surfaces.
  • the reflective bottom surface is provided with a Fresnel ring groove centered on a plurality of centers of the reflective bottom surface
  • the surface of the Fresnel ring groove is provided with a fire pattern road.
  • the light incident surface is composed of a light incident top surface and a light incident surface, and an upper edge and a lower edge of the light incident side are respectively opposite to an outer edge of the light incident top surface and an inner edge of the reflective bottom surface Connecting; the light incident bump is disposed at a center of the light incident top surface.
  • the light-emitting top surface is provided with a mounting blind hole
  • the light-emitting side surface is provided with a mounting step
  • the reflective bottom surface is provided with a mounting pillar.
  • the illumination distance of the lens body is 6mm; (7) The cooperation of the light-emitting bump and the curved concave portion reduces the unnecessary top surface of the light-emitting surface and horizontally sets, thereby lowering the lens The thickness of the body.
  • 1 is a perspective view of an embodiment of the present invention.
  • 2 is a perspective view (another angle) of an embodiment of the present invention.
  • FIG. 3 is a plan view of an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3.
  • FIG. 5 is a light path diagram of a cymbal using an embodiment of the present invention.
  • an embodiment of the present invention provides an ultra-thin backlight lens including a lens body a that is rotationally symmetric along a central axis, and the lens body a includes a light-emitting top surface that is horizontally disposed. 10 and a reflective bottom surface 30, and a vertically disposed light exit side 20.
  • the upper edge and the lower edge of the light-emitting side surface 20 are respectively connected to the outer edge of the light-emitting top surface 10 and the outer edge of the light-reflecting bottom surface 30.
  • the light-reflecting bottom surface 30 is centrally provided with a light source mounting hole, and the inner wall of the light source mounting hole The entrance edge of the light incident surface 40 is connected to the inner edge of the reflective bottom surface 30.
  • the center of the light-emitting top surface 10 is provided with an upwardly protruding head bump 11 , and the light-incident surface 40 is disposed at the center with a downwardly convex light-incident bump 41; wherein, the head bump 11 and the light entering the light
  • the bump 41 diverges the light passing through the center of the lens body a by refraction, thereby preventing the luminance of the center of the lens body a from being excessively large.
  • the surfaces are all curved surfaces; wherein the curved surface can expand the diffusion angle of the light-emitting bumps 11 and the light-incident bumps 41 to the light.
  • the surface of the central portion of the light-emitting top surface 10 is coated with a reflective coating 12, the reflective coating 12 is provided with a plurality of light-transmissive holes 13, the shape of the reflective coating 12 and the position of the light-transmitting holes 13 are
  • the light-emitting top surface 10 is rotationally symmetrical in the center.
  • the shape of the reflective coating 12 and the position of the transmission hole are set according to the intensity distribution of the light passing through the light-emitting top surface 10, so that the intensity of the light emitted from the light-emitting top surface 10 is distributed as evenly as possible.
  • the exit bump 11 is covered or inserted into the light-transmitting hole 13 by the reflective coating 12.
  • the protruding bump 11 is covered by the reflective coating 12 to reflect the light to the reflective bottom surface 30 through the exit bump 11 and further reflected by the reflective bottom surface 30.
  • those skilled in the art can also insert the protruding bumps 11 into the through holes according to actual needs, that is, the reflective protrusions do not cover the protruding bumps 11, so that the light rays directly diverge through the protruding bumps 11 ⁇ .
  • the arc-shaped recessed portion 14 is disposed at the center of the light-emitting top surface 10.
  • the curved recess 14 can further refract and emit the light emitted from the light-emitting top surface 10, thereby increasing the diffusion angle of the light-emitting top surface 10 and diffusing the light uniformly.
  • the cooperation of the protruding bump 11 and the curved recessed portion 14 reduces the unnecessary top surface of the light-emitting top surface 10 and is horizontally disposed, thereby reducing the thickness of the lens body a.
  • the light exiting side surface 20 is formed by connecting a plurality of light exiting surfaces 21 and a plurality of light exiting curved surfaces 22 end to end.
  • the light-emitting side surface 20 is formed by connecting four light-emitting planes 21 and four light-emitting arc surfaces 22 end to end.
  • the light-emitting top surface 10 and the light-emitting curved surface 22 form a positioning step 23, and the positioning step 23 is used for mounting and positioning of the lens body a.
  • the reflective bottom surface 30 is provided with a Fresnel ring groove 31 centered on the center of a plurality of the reflective bottom surfaces 30, and the surface of the Fresnel ring groove 31 is provided with a fire pattern road (not shown).
  • the Fresnel ring groove 31 reduces the unnecessary bottom surface of the reflective bottom surface 30 and horizontally, thereby reducing the thickness of the lens body a.
  • the spark pattern is used to process the stray light, allowing the lens body a to project a uniform spot.
  • the light incident surface 40 is composed of a light incident top surface 42 and a light incident side surface 43, and an upper edge and a lower edge of the light incident side surface 43 and an outer edge of the light incident top surface 42 and a reflective bottom surface 30, respectively.
  • the inner edge is connected; the light incident bump 41 is disposed at the center of the light incident top surface 42.
  • the matching of the curved entrance surface 42 and the incident light bump 41 enables the light passing through the center of the lens body a to be uniformly refracted and diverged, thereby avoiding excessive brightness of the center of the lens body a; the light incident side surface 43 is mainly used for The stray light is refracted to the Fresnel ring groove 31 so that the Fresnel ring groove 31 is opposite to the light Further processing.
  • the light-emitting top surface 10 is provided with a mounting blind hole 15, and the light-emitting side surface 20 is provided with a mounting step 24, and the reflective bottom surface 30 is provided with a mounting post 32.
  • the blind hole 15 is installed, the mounting step 24, and the mounting post 3
  • the lens body a is mounted on the PCB board b, and the LED lamp c is mounted on the center of the light source mounting hole of the lens body a, and the light is radiated from the LED lamp c and refracted and reflected by the lens body a.
  • the lens body a diverges.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

一种超薄背光源透镜，包括透镜体(a)，透镜体(a)包括均水平设置的出光顶面(10)和反光底面(30)，以及垂直设置的出光侧面(20)，出光侧面(20)的上边缘和下边缘分别与出光顶面(10)的外边缘、反光底面(30)的外边缘连接，反光底面(30)中心设置有光源安装孔，光源安装孔的内壁为入光面(40)，入光面(40)的下边缘与反光底面(30)的内边缘连接；出光顶面(10)中心设置有向上凸起的出光凸点(11)，入光面(40)中心设置有向下凸起的入光凸点(41)；出光顶面(10)中心区域表面涂覆有反光涂层(12)，反光涂层(12)设置有若干透光孔(13)。入光凸点(41)和出光凸点(11)将经过透镜体(a)中心的光线发散开，避免透镜体(a)中心的辉度过大；反光涂层(12)通过反射降低经过透镜体(a)中心的光线强度，透光孔(13)允许部分光线射出用于调节中心区域的辉度。

Description

一种超薄背光源透镜
技术领域
[0001] 本发明涉及透镜技术领域， 尤其涉及一种超薄背光源透镜。
背景技术
[0002] 液晶电视通常采用直下式 LED背光源作为液晶面板后方的发光源。 直下式 LED 背光源通常由 LED灯和透镜组合而成， 透镜可以使 LED灯的光线均匀照射， 使液 晶面板实现均匀辉度， 进一步提高液晶电视的画质。
[0003] 由于 LED灯一般设置于透镜的中心位置， 因而光线从透镜发射出去吋， 中心位 置发出的光线较为强烈， 导致中心较亮， 周围较暗， 使辉度分布得不均匀。 为 了避免直下式 LED背光源辉度分布不均匀， 通常需要在透镜与液晶面板之间设置 一段照射距离， 使光线进一步发散， 实现辉度分布均匀。 传统的照射距离一般 为 15-35mm。
[0004] 随着液晶电视的不断发展， 人们越来越钟情于购买厚度较低的液晶电视。 其中
， 照射距离和透镜厚度是决定液晶电视厚度的重要因素。
技术问题
问题的解决方案
技术解决方案
[0005] 本发明要解决的技术问题是根据上述现有技术的不足， 提供一种光线发散均匀
、 厚度低的背光源透镜。
[0006] 本发明的技术方案如下：
[0007] 一种超薄背光源透镜， 包括沿中心轴旋转对称的透镜体， 所述透镜体包括均水 平设置的出光顶面和反光底面， 以及垂直设置的出光侧面， 所述出光侧面的上 边缘和下边缘分别与所述出光顶面的外边缘、 反光底面的外边缘连接， 所述反 光底面中心设置有光源安装孔， 所述光源安装孔的内壁为入光面， 所述入光面 的下边缘与所述反光底面的内边缘连接； 所述出光顶面中心设置有向上凸起的 出光凸点， 所述入光面中心设置有向下凸起的入光凸点； 所述出光顶面中心区 域表面涂覆有反光涂层， 所述反光涂层设置有若干透光孔。
[0008] 进- 步地， 所述出光凸点和入光凸点的表面均为弧面。
[0009] 进- 步地， 所述出光凸点被所述反光涂层覆盖或插设于所述透光孔。
[0010] 进- 步地， 所述反光涂层的形状和透光孔的位置以所述出光顶面中心旋转对称
[0011] 进- 步地， 所述出光顶面中心设置有弧形凹陷部。
[0012] 进- 步地， 所述出光侧面由若干出光平面和若干出光弧面首尾连接而成。
[0013] 进- 步地， 所述反光底面设置有以若干所述反光底面中心为圆心的菲涅尔环槽
， 所述菲涅尔环槽表面设置有火花纹路。
[0014] 进一步地， 所述入光面由入光顶面和入光侧面组成， 所述入光侧面的上边缘和 下边缘分别与所述入光顶面的外边缘、 反光底面的内边缘连接； 所述入光凸点 设置于所述入光顶面中心。
[0015] 进一步地， 所述出光顶面设置有安装盲孔， 所述出光侧面设置有安装台阶， 所 述反光底面设置有安装柱脚。
发明的有益效果
有益效果
[0016] ( 1) 设置有入光凸点和出光凸点， 通过折射将经过透镜体中心的光线发散幵 ， 避免透镜体中心的辉度过大； （2) 反光涂层通过反射降低经过透镜体中心的 光线强度， 透光孔允许部分光线射出用于调节中心区域的辉度； （3) 菲涅尔环 槽使反光底面减少不必要的自由曲面且水平设置， 进而降低透镜体的厚度； （4 ) 火花纹路用于处理杂散光吋， 让透镜体投射出均匀的光斑； （5) 设置有弧形 凹陷部、 出光弧面、 入光顶面和入光侧面， 进一步对光线进行折射， 使光线发 射的角度更大； （6) 透镜体的照射距离为 6mm; (7) 出光凸点和弧形凹陷部 的配合， 使出光顶面减少不必要的自由曲面且水平设置， 进而降低透镜体的厚 度。
对附图的简要说明
附图说明
[0017] 图 1是本发明实施例的立体图。 [0018] 图 2是本发明实施例的立体图 (另-一角度） 。
[0019] 图 3是本发明实施例的俯视图。
[0020] 图 4是图 3中 A-A处的剖面图。
[0021] 图 5是本发明实施例使用吋的光路图。
[0022] 附图标记
[0023] 10、 出光顶面， 11、 出光凸点， 12、 反光涂层，
[0024] 13、 透光孔， 14、 弧形凹陷部， 15、 安装盲孑 L ;
[0025] 20、 出光侧面， 21、 出光平面， 22、 出光弧面，
[0026] 23、 定位台阶， 24、 安装台阶；
[0027] 30、 反光底面， 31、 菲涅尔环槽 : , 32、 安装柱脚
[0028] 40、 入光面， 41、 入光凸点， 42、 入光顶面， 43、 入光侧面；
[0029] a、 透镜体， b、 PCB板板，， cc、 、 LLEEDD灯灯。。
实施该发明的最佳实施例
本发明的最佳实施方式
[0030] 在此处键入本发明的最佳实施方式描述段落。
本发明的实施方式
[0031] 为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明作进 一步地详细描述。
[0032] 如图 1-4所示， 本发明提供的实施例， 一种超薄背光源透镜， 包括沿中心轴旋 转对称的透镜体 a， 所述透镜体 a包括均水平设置的出光顶面 10和反光底面 30， 以 及垂直设置的出光侧面 20。 所述出光侧面 20的上边缘和下边缘分别与所述出光 顶面 10的外边缘、 反光底面 30的外边缘连接， 所述反光底面 30中心设置有光源 安装孔， 所述光源安装孔的内壁为入光面 40， 所述入光面 40的下边缘与所述反 光底面 30的内边缘连接。
[0033] 所述出光顶面 10中心设置有向上凸起的出头凸点 11， 所述入光面 40中心设置有 向下凸起的入光凸点 41 ; 其中， 出头凸点 11和入光凸点 41通过折射将经过透镜 体 a中心的光线发散幵， 避免透镜体 a中心的辉度过大。 出头凸点 11和入光凸点 41 的表面均为弧面； 其中， 弧面能够扩大出头凸点 11和入光凸点 41对光线的扩散 角。
[0034] 所述出光顶面 10中心区域表面涂覆有反光涂层 12， 所述反光涂层 12设置有若干 透光孔 13， 所述反光涂层 12的形状和透光孔 13的位置以所述出光顶面 10中心旋 转对称。 反光涂层 12的形状以及透过孔的位置根据经过出光顶面 10的光线强度 分布设置， 使从出光顶面 10射出的光线强度尽可能地均匀分布。
[0035] 所述出头凸点 11被所述反光涂层 12覆盖或插设于所述透光孔 13。 其中， 本实施 例中， 优选出头凸点 11被反光涂层 12覆盖， 使光线经过出头凸点 11吋反射到反 光底面 30， 再由反光底面 30进一步反射。 当然， 本领域的技术人员也可根据实 际需要， 把出头凸点 11插设于透过孔中， 即反光突出不覆盖出头凸点 11， 使光 线经过出头凸点 11吋直接发散出去。
[0036] 所述出光顶面 10中心设置有弧形凹陷部 14。 其中， 弧形凹陷部 14能把从出光顶 面 10发射出去的光线进行进一步折射并发射出去， 提高出光顶面 10对光线的扩 散角， 使光线扩散均匀。 同吋， 出头凸点 11和弧形凹陷部 14的配合， 使出光顶 面 10减少不必要的自由曲面且水平设置， 进而降低透镜体 a的厚度。
[0037] 所述出光侧面 20由若干出光平面 21和若干出光弧面 22首尾连接而成。 本实施例 中， 优选出光侧面 20由四个出光平面 21和四个出光弧面 22首尾连接而成。 其中 ， 出光顶面 10与出光弧面 22构成一定位台阶 23， 定位台阶 23用于透镜体 a的安装 定位。
[0038] 所述反光底面 30设置有以若干所述反光底面 30中心为圆心的菲涅尔环槽 31， 所 述菲涅尔环槽 31表面设置有火花纹路 （图中未画出） 。 菲涅尔环槽 31使反光底 面 30减少不必要的自由曲面且水平设置， 进而降低透镜体 a的厚度。 并且， 火花 纹路用于处理杂散光吋， 让透镜体 a投射出均匀的光斑。
[0039] 所述入光面 40由入光顶面 42和入光侧面 43组成， 所述入光侧面 43的上边缘和下 边缘分别与所述入光顶面 42的外边缘、 反光底面 30的内边缘连接； 所述入光凸 点 41设置于所述入光顶面 42中心。 其中， 弧形的入光顶面 42和入光凸点 41的配 合， 能使经过透镜体 a中心的光线均匀折射发散， 避免透镜体 a中心的辉度过大； 入光侧面 43主要用于将杂散光折射到菲涅尔环槽 31， 以便菲涅尔环槽 31对光线 进一步处理。
[0040] 所述出光顶面 10设置有安装盲孔 15， 所述出光侧面 20设置有安装台阶 24， 所述 反光底面 30设置有安装柱脚 32。 其中， 安装盲孔 15、 安装台阶 24以及安装柱脚 3
2都用于将透镜体 a安装在 PCB板上。
[0041] 如图 5所示， 透镜体 a安装于 PCB板 b上， LED灯 c安装于透镜体 a的光源安装孔中 心， 光线从 LED灯 c发散出来经过透镜体 a的折射和反射并从透镜体 a发散幵。
[0042] 以上所揭露的仅为本发明较佳实施例而已， 当然不能以此来限定本发明之权利 范围， 因此依本发明权利要求所作的等同变化， 仍属本发明所涵盖的范围。

Claims

权利要求书
一种超薄背光源透镜， 其特征在于： 包括沿中心轴旋转对称的透镜体 ， 所述透镜体包括均水平设置的出光顶面和反光底面， 以及垂直设置 的出光侧面， 所述出光侧面的上边缘和下边缘分别与所述出光顶面的 外边缘、 反光底面的外边缘连接， 所述反光底面中心设置有光源安装 孔， 所述光源安装孔的内壁为入光面， 所述入光面的下边缘与所述反 光底面的内边缘连接； 所述出光顶面中心设置有向上凸起的出光凸点 ， 所述入光面中心设置有向下凸起的入光凸点； 所述出光顶面中心区 域表面涂覆有反光涂层， 所述反光涂层设置有若干透光孔。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述出光 凸点和入光凸点的表面均为弧面。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述出光 凸点被所述反光涂层覆盖或插设于所述透光孔。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述反光 涂层的形状和透光孔的位置以所述出光顶面中心旋转对称。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述出光 顶面中心设置有弧形凹陷部。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述出光 侧面由若干出光平面和若干出光弧面首尾连接而成。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述反光 底面设置有以若干所述反光底面中心为圆心的菲涅尔环槽， 所述菲涅 尔环槽表面设置有火花纹路。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述入光 面由入光顶面和入光侧面组成， 所述入光侧面的上边缘和下边缘分别 与所述入光顶面的外边缘、 反光底面的内边缘连接； 所述入光凸点设 置于所述入光顶面中心。
根据权利要求 1所述的一种超薄背光源透镜， 其特征在于： 所述出光 顶面设置有安装盲孔， 所述出光侧面设置有安装台阶， 所述反光底面 设置有安装柱脚。
PCT/CN2017/073762 2016-11-23 2017-02-16 一种超薄背光源透镜 WO2018094880A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019540478A JP6857739B2 (ja) 2016-11-23 2017-02-16 超薄バックライトレンズ
KR1020197010563A KR102264371B1 (ko) 2016-11-23 2017-02-16 초박형 백라이트 렌즈
US16/378,548 US10838256B2 (en) 2016-11-23 2019-04-08 Ultra-thin backlight lens

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201621258811.2U CN206321913U (zh) 2016-11-23 2016-11-23 一种广角背光透镜
CN201621258811.2 2016-11-23
CN201621258812.7 2016-11-23
CN201621258812.7U CN206504274U (zh) 2016-11-23 2016-11-23 一种csp背光透镜

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/378,548 Continuation US10838256B2 (en) 2016-11-23 2019-04-08 Ultra-thin backlight lens

Publications (1)

Publication Number Publication Date
WO2018094880A1 true WO2018094880A1 (zh) 2018-05-31

Family

ID=62194708

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2017/073762 WO2018094880A1 (zh) 2016-11-23 2017-02-16 一种超薄背光源透镜
PCT/CN2017/073761 WO2018094879A1 (zh) 2016-11-23 2017-02-16 一种椭球面广角背光源透镜

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/073761 WO2018094879A1 (zh) 2016-11-23 2017-02-16 一种椭球面广角背光源透镜

Country Status (4)

Country Link
US (2) US10838256B2 (zh)
JP (2) JP6857739B2 (zh)
KR (2) KR102264371B1 (zh)
WO (2) WO2018094880A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210511507U (zh) * 2017-01-19 2020-05-12 莱迪尔公司 用于改变光分布的装置、照明器系统和模具
CN109597241A (zh) * 2018-08-21 2019-04-09 深圳明智超精密科技有限公司 一种椭球面广角背光源透镜
US11346542B2 (en) * 2019-06-13 2022-05-31 Apple Inc. Electronic device with diffusively illuminated housing portions

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010186142A (ja) * 2009-02-13 2010-08-26 Panasonic Corp 照明用レンズ、発光装置、面光源および液晶ディスプレイ装置
CN103388776A (zh) * 2012-05-11 2013-11-13 扬升照明股份有限公司 背光模块
CN203907479U (zh) * 2014-07-04 2014-10-29 佛山市中山大学研究院 一种直下式背光模组的led透镜
US20150029728A1 (en) * 2013-07-26 2015-01-29 Hon Hai Precision Industry Co., Ltd. Lens and led module using the same
TWI479107B (zh) * 2012-11-20 2015-04-01 E Pin Optical Industry Co Ltd 發光二極體光分配透鏡及其光源裝置
CN205354578U (zh) * 2016-01-18 2016-06-29 深圳市鑫希叶光电有限公司 一种广告灯箱背光led透镜

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6724543B1 (en) * 2002-10-23 2004-04-20 Visteon Global Technologies, Inc. Light collection assembly having mixed conic shapes for use with various light emitting sources
KR101136344B1 (ko) * 2005-04-06 2012-04-18 삼성전자주식회사 광학 렌즈, 이를 갖는 광학 모듈, 이를 갖는 백라이트어셈블리 및 이를 갖는 표시 장치
CN100426037C (zh) 2005-04-07 2008-10-15 鸿富锦精密工业（深圳）有限公司 非球面会聚镜片
EP1717627A1 (en) 2005-04-26 2006-11-02 LG Electronics, Inc. Optical lens, light emitting device package using the optical lens, and backlight unit
JP4724618B2 (ja) * 2005-11-11 2011-07-13 株式会社 日立ディスプレイズ 照明装置及びそれを用いた液晶表示装置
KR100649758B1 (ko) * 2005-11-15 2006-11-27 삼성전기주식회사 균일한 광량 분포를 위한 렌즈 및 이를 이용한 발광 장치
TWI346820B (en) 2006-11-06 2011-08-11 Au Optronics Corp Lens and backlight module of display utilizing the same
JP4496299B1 (ja) * 2010-02-24 2010-07-07 シャープ株式会社 レンズ体、光源ユニット及び照明装置
US8455888B2 (en) * 2010-05-20 2013-06-04 Industrial Technology Research Institute Light emitting diode module, and light emitting diode lamp
KR101752405B1 (ko) * 2010-10-13 2017-06-29 엘지이노텍 주식회사 렌즈 및 이를 포함하는 발광 소자 패키지
WO2013081417A1 (en) * 2011-12-02 2013-06-06 Seoul Semiconductor Co., Ltd. Light emitting module and lens
KR101962121B1 (ko) * 2011-12-12 2019-03-28 삼성디스플레이 주식회사 렌즈, 및 이를 포함하는 백라이트 어셈블리 및 표시 장치
TW201235707A (en) * 2011-12-14 2012-09-01 E Pin Optical Industry Co Ltd LED lens and light emitting device using the same
JP6016190B2 (ja) * 2012-07-13 2016-10-26 オムロン株式会社 光偏向素子並びに当該素子を用いた照光スイッチ及び面光源装置
CN103574498A (zh) * 2012-07-18 2014-02-12 全亿大科技（佛山）有限公司 透镜及照明装置
TW201416619A (zh) * 2012-10-19 2014-05-01 Hon Hai Prec Ind Co Ltd 透鏡及具有該透鏡的光源模組
JP2014093481A (ja) * 2012-11-06 2014-05-19 Ledlink Optics Inc 発光ダイオードレンズの構造
TWI535977B (zh) * 2012-12-14 2016-06-01 鴻海精密工業股份有限公司 發光二極體透鏡及發光二極體背光源
JP2014174316A (ja) * 2013-03-08 2014-09-22 Ledlink Optics Inc 光学レンズ
TW201438295A (zh) * 2013-03-27 2014-10-01 鴻海精密工業股份有限公司 透鏡組合及採用該透鏡組合的發光模組
CN104235756A (zh) * 2013-06-11 2014-12-24 全亿大科技（佛山）有限公司 透镜以及具有该透镜的照明装置
KR20160072168A (ko) * 2013-11-13 2016-06-22 정해운 발광 장치
KR20150066847A (ko) * 2013-12-09 2015-06-17 엘지이노텍 주식회사 광속 제어 부재, 발광 장치 및 표시장치
CN204141490U (zh) * 2014-08-04 2015-02-04 四川新力光源股份有限公司 一种矩形出光的led透镜及具有该透镜的led模组
KR101572495B1 (ko) * 2014-08-20 2015-12-02 주식회사 루멘스 발광 소자 패키지의 제조 방법과, 발광 소자 패키지용 정렬 지그와, 발광 소자 패키지용 리드 프레임 스트립 및 발광 소자 패키지용 렌즈 스트립
KR101498628B1 (ko) * 2014-09-04 2015-03-04 서용덕 다중입사면이 구비된 확산렌즈
CN104317100B (zh) * 2014-10-13 2017-03-22 青岛海信电器股份有限公司 一种发光器件及背光源
CN204300975U (zh) * 2014-11-13 2015-04-29 济南坤锐光学科技有限公司 双椭球路灯亮度均匀性偏光配光透镜及应用此透镜的路灯
KR101528731B1 (ko) 2014-12-18 2015-06-15 서동필 확산렌즈 구조체 및 이를 포함하는 발광 장치
TWI711787B (zh) * 2015-01-08 2020-12-01 韓商Ｌｇ伊諾特股份有限公司 光學透鏡及具有光學透鏡之發光模組
JP6589293B2 (ja) * 2015-02-27 2019-10-16 三菱電機株式会社 照明器具およびレンズ
WO2016158243A1 (ja) * 2015-03-31 2016-10-06 ソニー株式会社 光源用レンズ、照明装置および表示装置
TWI618890B (zh) * 2015-05-04 2018-03-21 鴻海精密工業股份有限公司 光學透鏡
CN205079173U (zh) * 2015-11-02 2016-03-09 张洪才 一种改良的双凹面背光源透镜

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010186142A (ja) * 2009-02-13 2010-08-26 Panasonic Corp 照明用レンズ、発光装置、面光源および液晶ディスプレイ装置
CN103388776A (zh) * 2012-05-11 2013-11-13 扬升照明股份有限公司 背光模块
TWI479107B (zh) * 2012-11-20 2015-04-01 E Pin Optical Industry Co Ltd 發光二極體光分配透鏡及其光源裝置
US20150029728A1 (en) * 2013-07-26 2015-01-29 Hon Hai Precision Industry Co., Ltd. Lens and led module using the same
CN203907479U (zh) * 2014-07-04 2014-10-29 佛山市中山大学研究院 一种直下式背光模组的led透镜
CN205354578U (zh) * 2016-01-18 2016-06-29 深圳市鑫希叶光电有限公司 一种广告灯箱背光led透镜

Also Published As

Publication number Publication date
JP6857739B2 (ja) 2021-04-14
JP2019531586A (ja) 2019-10-31
JP6768972B2 (ja) 2020-10-14
KR102264371B1 (ko) 2021-06-11
US20190235314A1 (en) 2019-08-01
WO2018094879A1 (zh) 2018-05-31
KR102264373B1 (ko) 2021-06-11
KR20190053893A (ko) 2019-05-20
JP2019531514A (ja) 2019-10-31
KR20190053894A (ko) 2019-05-20
US10838256B2 (en) 2020-11-17
US20190235319A1 (en) 2019-08-01
US10585309B2 (en) 2020-03-10

Similar Documents

Publication Publication Date Title
US7967478B2 (en) Device for redirecting the luminous flux emitted by one or more LED
KR101652509B1 (ko) 백라이트 유닛용 엘이디 렌즈
JP5957364B2 (ja) 光束制御部材、発光装置、面光源装置および表示装置
TWI526652B (zh) 發光裝置
JP6629601B2 (ja) 光束制御部材、発光装置、面光源装置および表示装置
KR101299529B1 (ko) 발광다이오드용 렌즈, 이를 구비하는 백라이트유닛 및 표시장치
WO2017067515A1 (zh) 透镜组合及应用透镜组合的照明装置
WO2018072695A1 (zh) 透镜组合及应用透镜组合的照明装置
WO2018094880A1 (zh) 一种超薄背光源透镜
JP6682229B2 (ja) 光束制御部材、発光装置、面光源装置および表示装置
JP2015176862A (ja) 発光装置、面光源装置および表示装置
CN111812885A (zh) 光学透镜、背光模组和显示装置
US7850342B2 (en) Luminaire reflector with light-modifying flange
JP2020518869A (ja) 拡散レンズ及びこれを採用した発光装置
TWI547741B (zh) 薄型背光模組
KR20170129520A (ko) 장식렌즈 및 이를 구비한 직하형 led 면조명 장치
KR102060790B1 (ko) 광학 구조체 및 백라이트 유닛
CN109471297A (zh) 一种超薄背光源透镜
TWI486687B (zh) 直下式背光模組
JP2006155964A (ja) 表示装置のバックライト
KR102352404B1 (ko) 백라이트 장치
WO2018228207A1 (zh) 一种光学元件及应用该光学元件的照明装置
CN215929472U (zh) 透镜及灯具
CN214790664U (zh) 照明装置
JP7383465B2 (ja) 光束制御部材、発光装置、面光源装置および表示装置

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: 17873519

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019540478

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20197010563

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17873519

Country of ref document: EP

Kind code of ref document: A1