WO2015192544A1 - 照明装置 - Google Patents

照明装置 Download PDF

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Publication number
WO2015192544A1
WO2015192544A1 PCT/CN2014/088081 CN2014088081W WO2015192544A1 WO 2015192544 A1 WO2015192544 A1 WO 2015192544A1 CN 2014088081 W CN2014088081 W CN 2014088081W WO 2015192544 A1 WO2015192544 A1 WO 2015192544A1
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Prior art keywords
light
electronic
illumination
lamp cover
voltage
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PCT/CN2014/088081
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English (en)
French (fr)
Inventor
李文波
武延兵
董烨飞
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京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/443,715 priority Critical patent/US9863599B2/en
Publication of WO2015192544A1 publication Critical patent/WO2015192544A1/zh

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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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/003—Controlling the distribution of the light emitted by adjustment of elements by interposition of elements with electrically controlled variable light transmissivity, e.g. liquid crystal elements or electrochromic 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F21Y2115/15—Organic light-emitting diodes [OLED]

Definitions

  • Embodiments of the invention relate to a lighting device.
  • lighting fixtures have undergone earth-shaking evolution with the advancement of the economy and society and the emergence of new light sources such as fluorescent lamps, energy-saving lamps and LED lamps.
  • new light sources such as fluorescent lamps, energy-saving lamps and LED lamps.
  • the rich and diverse selection of light sources has also opened a new chapter in the development of the lighting industry. City squares, traffic roads, new repair communities, home decor, shopping malls and office buildings all require the decoration of lighting products and the custom requirements for lighting products.
  • Embodiments of the present invention provide a lighting device including: a support member, a light emitting member mounted on the support member, and an electronic lamp cover mounted on the support member and surrounding the light emitting member; wherein when applied to work The electronic lampshade exhibits different light transmission states when different voltage values are within the voltage interval.
  • the light transmittance of the electronic lampshade increases as the applied voltage value within the operating voltage interval increases.
  • the electronic lamp cover includes: two opposite electrodes disposed opposite to each other, an electro-optic transmittance variable layer disposed between the two layers of electrodes, and a control electrode between the two layers of electrodes Poor voltage control circuit.
  • the material of the electro-optic transmittance variable layer is a photo-crystal or a polymer liquid crystal.
  • the photovoltaic crystal is KH 2 PO 4 , NH 4 H 2 PO 4 , KH 2 AsO 4 or KD 2 PO 4 .
  • the polymer liquid crystal is a polymer dispersed liquid crystal or a polymer cholesteric liquid crystal.
  • the light emitting component is an LED light or an OLED light.
  • a lighting control circuit that controls illumination of the LED lamp or the OLED lamp and a voltage control circuit for controlling a voltage differential between two layers of electrodes in the electronic lampshade are integrated on the same circuit board.
  • the illumination device further includes: a strip grating disposed between the electronic lamp cover and the light emitting member, and adjusting means for adjusting a light exit angle of the light transmitting region of the strip grating.
  • FIG. 1 is a schematic structural diagram of a lighting device according to an embodiment of the present invention.
  • FIG. 2 is a corresponding relationship diagram between an operating voltage and an illumination brightness of a lighting device according to an embodiment of the present invention
  • 3a and 3b are schematic diagrams showing the operation of an electronic lampshade in a lighting device according to an embodiment of the present invention
  • 4a and 4b are respectively a second schematic structural view of a lighting device according to an embodiment of the present invention.
  • An illumination device includes a support member 10 , a light-emitting component 20 mounted on the support member 10 , and an electronic lamp cover 30 mounted on the support member 10 and surrounding the light-emitting component 20 .
  • the electronic lampshade 30 exhibits different light transmitting states.
  • the lighting device will be described as an example of a ceiling light.
  • the illumination device can be secured to the ceiling 40 using the support 10 in the illumination device.
  • the illumination device provided in this embodiment can also be used as a lighting fixture such as a wall lamp, which is not limited herein.
  • the illumination device provided by the embodiment of the present invention is provided with an electronic lamp cover 30 surrounding the light-emitting component 20, and the electronic lamp cover 30 can exhibit different light-transmissive states according to different voltage values applied in the working voltage interval, thereby changing the illumination device.
  • Illumination angle and illumination brightness For example, in electricity
  • the sub-light cover 30 is in a transparent state, the light emitted from the light-emitting member 20 can pass directly to form light having a specific illumination angle and a certain illumination brightness.
  • the electronic lamp cover 30 exhibits a scattering state, the light emitted from the light-emitting member 20 is partially refracted by the electronic lamp cover 30 to form a light having a certain illumination intensity that is diverging around.
  • the illumination device provided by the embodiment of the present invention can change the illumination angle and the illumination brightness of the illumination device by adjusting the light transmission state of the electronic lamp cover 30.
  • the light transmission state of the electronic lamp cover 30 may be changed according to the change of the applied voltage.
  • the light transmittance of the electronic lamp cover 30 increases as the voltage value applied in the operating voltage range increases, and the light transmittance of the electronic lamp cover 30 increases as the illumination brightness of the illumination device increases.
  • the correspondence between the operating voltage of the electronic lampshade 30 and the illumination brightness of the illumination device can be established.
  • each of the electronic lampshades 30 has a fixed saturation operating voltage. When the saturation operating voltage is applied to the electronic lampshade 30, the light transmittance of the electronic lampshade 30 can be maximized. 80%-90% or so.
  • the operating voltage range of the electronic lamp cover 30 can be preset according to the saturation operating voltage of the electronic lamp cover 30, and the electronic component is selected within the operating voltage range.
  • the operating voltage applied by the lampshade 30 ensures that the electronic lampshade 30 has a good life.
  • an exemplary structure of the electronic lamp cover 30 is as shown in FIGS. 3a and 3b, including: oppositely disposed two-layer electrodes 31 and 32, which are disposed on the two-layer electrode An electro-optic transmittance variable layer 33 between 31 and 32, and a voltage control circuit 34 for controlling the voltage difference between the two layers of electrodes 31 and 32.
  • the voltage difference between the two layers of electrodes 31 and 32 can be controlled by the voltage control circuit 34 to change the light transmittance of the electro-optic transmittance variable layer 33, thereby adjusting the illumination of the illumination device. brightness.
  • the material of the electro-optic transmittance variable layer in the electronic lamp cover 30 may be selected from a material such as a photoelectric crystal or a polymer liquid crystal, and these materials may change the alignment direction of the molecules according to the applied voltage, thereby affecting the transmitted light path. , to achieve the effect of adjusting the light transmittance.
  • the photovoltaic crystal may include KH 2 PO 4 (KDP), NH 4 H 2 PO 4 (ADP), KH 2 AsO 4 (KDA) or KD 2 PO 4 (KD*P), and the like.
  • the polymer liquid crystal may include a polymer dispersed liquid crystal or a polymer cholesteric liquid crystal or the like.
  • the polymer dispersed liquid crystals are arranged in an orderly manner so that the incident light passes directly (indicated by an arrow in the figure), and the intensity of the incident light is transmitted through the polymer. There is substantially no loss after dispersing the liquid crystal, and therefore, the final illumination device emits light having a specific illumination angle and total illumination brightness.
  • the light-emitting component 20 in the illumination device provided by the embodiment of the present invention may be a new lamp system such as an LED lamp or an OLED lamp, or a conventional lamp system such as an incandescent lamp, and is not limited herein.
  • the driving voltage is generally a fixed value, and it is difficult to change the illumination brightness of the lamp by the conventional varistor, and the electronic lamp cover 30 in the above lighting device provided by the embodiment of the present invention can be conveniently used. The light and dark adjustment of the above lamp is realized.
  • the illumination control circuit for controlling the illumination of the LED lamp or the OLED lamp can be A voltage control circuit 34 for controlling the voltage difference between the two layers of electrodes in the electronic lampshade is integrated on the same circuit board to save space and cost.
  • the illumination device 20 can further include: setting, in order to adjust the emission angle of the light emitted by the light-emitting component 20 in the illumination device.
  • the light exit angle of the light-transmitting region of the strip-shaped grating 50 can be adjusted by the adjusting device as needed, for example, from the light-transmitting region of the strip-shaped grating 50 shown in FIG. 4a.
  • the emission angle is changed to the oblique direction shown in FIG. 4b in the vertical direction, so that the irradiation angle of the light emitted from the light-emitting member 20 changes with the light emission angle of the light-transmitting region, and the directional illumination function of changing the illumination device is realized.
  • the strip grating 50 in the above illumination device provided by the embodiment of the present invention generally has a certain thickness d to facilitate changing the light exit angle of the light transmitting region.
  • the strip grating 50 may be an active grating such as a liquid crystal grating, or may be a strip grating composed of blades connected by a rotating shaft, which is not limited herein.
  • the illumination device provided by the embodiment of the invention is provided with an electronic lamp cover surrounding the light-emitting component, and the electronic lamp cover can exhibit different light-transmissive states according to different voltage values applied in the preset working voltage interval, thereby changing the illumination of the illumination device.
  • Irradiation angle and illumination brightness For example, when the electronic lampshade is in a transparent state, the light emitted by the light-emitting component can pass directly to form light having a specific illumination angle and a certain illumination brightness; when the electronic lamp cover exhibits a scattering state, the light-emitting component emits The light is partially refracted by the electronic lampshade to form a divergent light having a certain illumination intensity. Therefore, the illumination device provided by the embodiment of the present invention can change the illumination angle and the illumination brightness of the illumination device by adjusting the light transmission state of the electronic lamp cover.

Abstract

一种照明装置，设置有包围发光部件（20）的电子灯罩（30），该电子灯罩（30）可以根据在工作电压区间内施加的不同电压值，呈现不同的透光状态，从而可改变照明装置发光的照射角度和照射亮度。

Description

照明装置 技术领域
本发明的实施例涉及一种照明装置。
背景技术
照明器具作为日常消耗品，随着经济社会的进步以及荧光灯、节能灯、LED灯等新型光源的出现，已经发生了翻天覆地的演进。光源的丰富和多样选择性也使照明灯具行业的发展展开了新的一页。城市广场、交通道路、新修社区、家庭装饰、商城与写字楼等，都需要照明产品的装饰，并对照明产品提出了客制需求。
发明内容
本发明实施例提供了一种照明装置，包括：支撑件，安装于所述支撑件上的发光部件，以及安装于所述支撑件上且包围所述发光部件的电子灯罩；其中当施加以工作电压区间内的不同电压值时，所述电子灯罩呈现不同的透光状态。
在一个示例中，所述电子灯罩的光透过率随着施加的在工作电压区间内的电压值的增大而增大。
在一个示例中，所述电子灯罩包括：相对设置的两层电极，设置于所述两层电极之间的电致光透过率可变层，以及用于控制所述两层电极之间压差的电压控制电路。
在一个示例中，所述电致光透过率可变层的材料为光电晶体或聚合物液晶。
在一个示例中，所述光电晶体为KH2PO4，NH4H2PO4，KH2AsO4或KD2PO4。
在一个示例中，所述聚合物液晶为聚合物分散液晶或聚合物胆甾相液晶。
在一个示例中，所述发光部件为LED灯或OLED灯。
在一个示例中，控制所述LED灯或所述OLED灯发光的发光控制电路和用于控制所述电子灯罩中的两层电极之间压差的电压控制电路集成在同一个电路板上。
在一个示例中所述照明装置还包括：设置于所述电子灯罩和所述发光部件之间的条状光栅，以及用于调节所述条状光栅的透光区域的光出射角度的调节装置。
附图说明
图1为本发明实施例提供的照明装置的结构示意图之一；
图2为本发明实施例提供的照明装置的工作电压和照射亮度的对应关系图；
图3a和图3b分别为本发明实施例提供的照明装置中电子灯罩的工作示意图；
图4a和图4b分别为本发明实施例提供的照明装置的结构示意图之二。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅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无需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。
附图中各区域的形状和大小不反映照明装置的真实比例，目的只是示意说明本发明内容。
发明人注意到：目前的照明产品往往只能实现普通照明功能，并不具备改变照明光线的照射角度和照射亮度的功能。
本发明实施例提供的一种照明装置，如图1所示，包括：支撑件10，安装于支撑件10上的发光部件20，以及安装于支撑件10上且包围发光部件20的电子灯罩30当对电子灯罩30施加在工作电压区间内的不同电压值时，电子灯罩30呈现不同的透光状态。
在本实施例中以该照明装置作为吊顶灯为例进行说明。例如，如图1所示，可以利用照明装置中的支撑件10将照明装置固定于天花板40上。当然本实施例提供的照明装置也可以作为壁灯等照明灯具，在此不做限定。
本发明实施例提供的上述照明装置，设置有包围发光部件20的电子灯罩30，该电子灯罩30可以根据在工作电压区间内施加的不同电压值，呈现不同的透光状态，从而可改变照明装置发光的照射角度和照射亮度。例如，在电 子灯罩30呈现透明状态时，发光部件20发出的光线可以直接通过，形成具有特定照射角度和一定照射亮度的光线。在电子灯罩30呈现散射状态时，发光部件20发出的光线被电子灯罩30部分折射出来，形成向四周发散的具有一定照射亮度的光线。本发明实施例提供的上述照明装置通过调节电子灯罩30的透光状态，可以改变照明装置光线的照射角度和照射亮度。
本发明实施例提供的上述照明装置中，电子灯罩30的透光状态可以根据施加电压的变化而变化。电子灯罩30的光透过率会随着施加在工作电压区间内的电压值的增大而增大，而电子灯罩30的光透过率越大照明装置的照射亮度相对越大。如图2所示，可以建立电子灯罩30的工作电压与照明装置照射亮度的对应关系。例如，根据电子灯罩30的具体结构不同，各电子灯罩30会具有一固定的饱和工作电压，在对电子灯罩30施加该饱和工作电压时，电子灯罩30的光透过率可达到最大，一般在80％-90％左右。在电子灯罩30未施加电压时，电子灯罩30的光透过率最小，因此，可以根据电子灯罩30的饱和工作电压预先设定电子灯罩30的工作电压区间，在此工作电压区间内选取对电子灯罩30施加的工作电压，以保证电子灯罩30具有良好的寿命。
为了实现采用施加电压的不同来调节电子灯罩30的光透过率，电子灯罩30的示例结构如图3a和图3b所示，包括：相对设置的两层电极31和32，设置于两层电极31和32之间的电致光透过率可变层33，以及用于控制两层电极31和32之间压差的电压控制电路34。在电子灯罩30工作时，可以利用电压控制电路34控制两层电极31和32之间的电压差，以改变电致光透过率可变层33的光透过率，从而调节照明装置的照射亮度。
例如，在电子灯罩30中的电致光透过率可变层的材料可以选用光电晶体或聚合物液晶等材料，这些材料可以根据施加的电压而改变分子排列方向，从而影响透过的光线路径，达到调节光透过率作用。
光电晶体可以包括KH2PO4(KDP)，NH4H2PO4(ADP)，KH2AsO4(KDA)或KD2PO4(KD*P)等。
聚合物液晶可以包括聚合物分散液晶或聚合物胆甾相液晶等。
图3a和图3b中是以聚合物分散液晶作为电致光透过率可变层33的材料为例进行说明的。可以看出在如图3a所示的对电子灯罩30未加电压的情况下，聚合物分散液晶无序排列，使入射光呈现散射状态出射(图中箭头所示)，且入射光的强度在透过聚合物分散液晶后会有所损失，因此，最终照明装置 出射向四周发散的具有部分照射亮度的光线。在如图3b所示的对电子灯罩30施加饱和工作电压的情况下，聚合物分散液晶有序排列，使入射光直接通过(图中箭头所示)，且入射光的强度在透过聚合物分散液晶后基本无损失，因此，最终照明装置出射具有特定照射角度和全部照射亮度的光线。
本发明实施例提供的上述照明装置中的发光部件20，可以采用LED灯或者OLED灯等新型灯系，也可以采用白炽灯等传统灯系，在此不做限定。LED灯或者OLED灯等新型灯系，其驱动电压一般为固定值，很难通过常规变阻的方式改变灯的照射亮度，而采用本发明实施例提供的上述照明装置中的电子灯罩30可以方便的实现上述灯的明暗调节。
例如，在本发明实施例提供的照明装置中，为了节省空间和成本，由于电子灯罩30和LED灯或OLED灯均需要电路控制，因此，可以将控制LED灯或OLED灯发光的发光控制电路和用于控制电子灯罩中的两层电极之间压差的电压控制电路34集成在同一个电路板上，以节省空间和成本。
例如，为了能对发光部件20发出的光线在照明装置中的出射角度进行更加明显的调节，在本发明实施例提供的上述照明装置中，如图4a和图4b所示，还可以包括：设置于电子灯罩30和发光部件20之间的条状光栅50，以及用于调节条状光栅50的透光区域的光出射角度的调节装置(图中未示出)。
在本发明实施例提供的上述照明装置工作时，可以根据需要通过调节装置调节条状光栅50的透光区域的光出射角度，例如从图4a所示的条状光栅50的透光区域的光出射角度为竖直方向变为图4b所示的倾斜方向，从而使发光部件20发出光线的照射角度随着透光区域的光出射角度而变化，实现变更照明装置不同的定向照射功能。
例如，本发明实施例提供的上述照明装置中的条状光栅50一般具有一定的厚度d，以方便变更透光区域的光出射角度。例如，条状光栅50可以为液晶光栅等主动光栅，也可以为由转轴连接的叶片组成的条状光栅，在此不做限定。
本发明实施例提供的上述照明装置，设置有包围发光部件的电子灯罩，该电子灯罩可以根据在预设工作电压区间内施加的不同电压值，呈现不同的透光状态，从而可改变照明装置发光的照射角度和照射亮度。例如，在电子灯罩呈现透明状态时，发光部件发出的光线可以直接通过，形成具有特定照射角度和一定照射亮度的光线；在电子灯罩呈现散射状态时，发光部件发出 的光线被电子灯罩部分折射出来，形成向四周发散的具有一定照射亮度的光线。因此，本发明实施例提供的上述照明装置通过调节电子灯罩的透光状态，可以改变照明装置光线的照射角度和照射亮度。
以上实施例仅用于说明本发明，而并非对本发明的限制，有关技术领域的普通技术人员，在不脱离本发明的精神和范围的情况下，还可以做出各种变化和变型，因此所有这样的变化和变形以及等同的技术方案也属于本发明的范畴，本发明的专利保护范围应由权利要求限定。
本申请要求于2014年06月19日提交的名称为“一种照明装置”的中国专利申请No.201410276910.2的优先权，其全文以引用方式合并于本文。

Claims (9)

  1. 一种照明装置，包括：支撑件，安装于所述支撑件上的发光部件，以及安装于所述支撑件上且包围所述发光部件的电子灯罩；
    其中当对所述电子灯罩施加在工作电压区间内的不同电压值时，所述电子灯罩呈现不同的透光状态。
  2. 如权利要求1所述的照明装置，其中所述电子灯罩的光透过率随着施加的在工作电压区间内的电压值的增大而增大。
  3. 如权利要求1或2所述的照明装置，其中所述电子灯罩包括：相对设置的两层电极，设置于所述两层电极之间的电致光透过率可变层，以及用于控制所述两层电极之间压差的电压控制电路。
  4. 如权利要求3所述的照明装置，其中所述电致光透过率可变层的材料包括光电晶体或聚合物液晶。
  5. 如权利要求4所述的照明装置，其中所述光电晶体包括KH2PO4，NH4H2PO4，KH2AsO4或KD2PO4。
  6. 如权利要求4所述的照明装置，其中所述聚合物液晶为聚合物分散液晶或聚合物胆甾相液晶。
  7. 如权利要求1-6任一项所述的照明装置，其中所述发光部件包括LED灯或OLED灯。
  8. 如权利要求7所述的照明装置，其中控制所述LED灯或所述OLED灯发光的发光控制电路和配置来控制所述电子灯罩中的两层电极之间压差的电压控制电路集成在同一个电路板上。
  9. 如权利要求1-8任一项所述的照明装置，还包括：设置于所述电子灯罩和所述发光部件之间的条状光栅，以及用于调节所述条状光栅的透光区域的光出射角度的调节装置。
PCT/CN2014/088081 2014-06-19 2014-10-01 照明装置 WO2015192544A1 (zh)

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