JP6768972B2 - 楕円体形状の広角バックライトレンズ - Google Patents
楕円体形状の広角バックライトレンズ Download PDFInfo
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- JP6768972B2 JP6768972B2 JP2019540477A JP2019540477A JP6768972B2 JP 6768972 B2 JP6768972 B2 JP 6768972B2 JP 2019540477 A JP2019540477 A JP 2019540477A JP 2019540477 A JP2019540477 A JP 2019540477A JP 6768972 B2 JP6768972 B2 JP 6768972B2
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- 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
- 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
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- 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
- 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
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- 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)
Description
x1 2/a1 2+y1 2/b1 2+z1 2/c1 2=1,
x2 2/a2 2+y2 2/b2 2+z2 2/c2 2=1,
x3 2/a3 2+y3 2/b3 2+z3 2/c3 2=1で表される。ここでは、a1>b1>c1,c2>b2>a2,b3>c3>a3となる。
さらに、a1:b1:c1,c2:b2:a2,b3:c3:a3の任意の2つまたは3つは同じである。
(1)光入射凸点を設置することで、レンズ体の中心を通った光線が屈折によって拡散し、レンズ体の中心での輝度の過大を回避する。(2)楕円体形状構造によれば、レンズ体に入出射した光線を屈折させることで、光線の出射角度が大きくなり、その結果、液晶パネルに対するLEDバックライトの照射面積を増大させ、LEDランプの使用個数や液晶テレビの消費電力を減らす。(3)スパークによる粒状表面を用いて迷光を処理することで、レンズ体から均一な光スポットを投光することができる。
x1 2/a1 2+y1 2/b1 2+z1 2/c1 2=1,
x2 2/a2 2+y2 2/b2 2+z2 2/c2 2=1,
x3 2/a3 2+y3 2/b3 2+z3 2/c3 2=1で表される。ここでは、a1>b1>c1,c2>b2>a2,b3>c3>a3,a1>a2>a3,b1>b2>b3,c1>c2>c3となる。さらに、a1:b1:c1,c2:b2:a2,b3:c3:a3の任意の2つまたは3つは同じである。本実施例では、好適には、a1:b1:c1=c2:b2:a2=b3:c3:a3、これにより、光線が光出射頂面10、光入射面40及び光入射凸点41の表面を通る場合の屈折角度を一致させ、レンズ体から出射された光線を均一に分布させる。
20 光出射側面
30 光反射底面
31 取付脚
32 取付穴
40 光入射面
41 光入射凸点
A レンズ体
B PCB基板
C LEDランプ
Claims (5)
- レンズ体を含み、
前記レンズ体には、光出射頂面、光出射側面及び光反射底面が設置され、
前記光出射側面の上縁及び下縁は、それぞれ前記光出射頂面の外縁、光反射底面の外縁に連結され、
前記光反射底面の中心には、光源取付穴が設置され、
前記光源取付穴の内壁は、光入射面であり、
前記光入射面の下縁は、前記光反射底面の内縁に連結される楕円体形状の広角バックライトレンズであって、
前記光源取付穴の頂部の中心には、下向きに凸になる光入射凸点が設置され、
前記光出射頂面、光入射面及び光入射凸点の表面は、いずれも楕円体形状の構造に形成され、
前記光反射底面の中心を直交座標系の原点Oとし、前記光出射頂面の表面を構成する楕円体の長軸方向をX軸、前記光入射面の表面を構成する楕円体の長軸方向をZ軸、これらに直交する軸をY軸と設定したとき、
前記光出射頂面の表面の方程式は、x 1 2 /a 1 2 +y 1 2 /b 1 2 +z 1 2 /c 1 2 =1で表され、
前記光入射面の表面の方程式は、x 2 2 /a 2 2 +y 2 2 /b 2 2 +z 2 2 /c 2 2 =1で表され、
前記光入射凸点の表面の方程式は、x 3 2 /a 3 2 +y 3 2 /b 3 2 +z 3 2 /c 3 2 =1で表され、
ここでは、a 1 >b 1 >c 1 ,c 2 >b 2 >a 2 ,b 3 >c 3 >a 3 となり、
a 1 :b 1 :c 1 =c 2 :b 2 :a 2 =b 3 :c 3 :a 3 であることを特徴とする楕円体形状の広角バックライトレンズ。 - a1>a2>a3,b1>b2>b3,c1>c2>c3となることを特徴とする請求項1に記載の楕円体形状の広角バックライトレンズ。
- 前記光出射側面は、円柱面であることを特徴とする請求項1に記載の楕円体形状の広角バックライトレンズ。
- 前記光出射側面及び光反射底面には、粒状表面が設けられることを特徴とする請求項1または3に記載の楕円体形状の広角バックライトレンズ。
- 前記光反射底面には、取付脚及び取付穴が設置されることを特徴とする請求項1に記載の楕円体形状の広角バックライトレンズ。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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CN201621258811.2 | 2016-11-23 | ||
CN201621258812.7 | 2016-11-23 | ||
CN201621258811.2U CN206321913U (zh) | 2016-11-23 | 2016-11-23 | 一种广角背光透镜 |
CN201621258812.7U CN206504274U (zh) | 2016-11-23 | 2016-11-23 | 一种csp背光透镜 |
PCT/CN2017/073761 WO2018094879A1 (zh) | 2016-11-23 | 2017-02-16 | 一种椭球面广角背光源透镜 |
Publications (2)
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JP2019531514A JP2019531514A (ja) | 2019-10-31 |
JP6768972B2 true JP6768972B2 (ja) | 2020-10-14 |
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JP2019540478A Active JP6857739B2 (ja) | 2016-11-23 | 2017-02-16 | 超薄バックライトレンズ |
JP2019540477A Active JP6768972B2 (ja) | 2016-11-23 | 2017-02-16 | 楕円体形状の広角バックライトレンズ |
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JP2019540478A Active JP6857739B2 (ja) | 2016-11-23 | 2017-02-16 | 超薄バックライトレンズ |
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US (2) | US10838256B2 (ja) |
JP (2) | JP6857739B2 (ja) |
KR (2) | KR102264373B1 (ja) |
WO (2) | WO2018094880A1 (ja) |
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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 |
CN107407473B (zh) * | 2015-03-31 | 2020-08-28 | 索尼公司 | 用于光源的透镜、照明装置和显示装置 |
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 |
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 |
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