WO2012035841A1 - Dispositif d'éclairage à diode électroluminescente - Google Patents

Dispositif d'éclairage à diode électroluminescente Download PDF

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Publication number
WO2012035841A1
WO2012035841A1 PCT/JP2011/064303 JP2011064303W WO2012035841A1 WO 2012035841 A1 WO2012035841 A1 WO 2012035841A1 JP 2011064303 W JP2011064303 W JP 2011064303W WO 2012035841 A1 WO2012035841 A1 WO 2012035841A1
Authority
WO
WIPO (PCT)
Prior art keywords
led
lighting device
led lighting
diffusion material
light
Prior art date
Application number
PCT/JP2011/064303
Other languages
English (en)
Japanese (ja)
Inventor
洋治 椋田
Original Assignee
株式会社ブリンツテクノロジー
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
Application filed by 株式会社ブリンツテクノロジー filed Critical 株式会社ブリンツテクノロジー
Publication of WO2012035841A1 publication Critical patent/WO2012035841A1/fr

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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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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]

Definitions

  • the present invention relates to an illuminating device (including an illuminator and an illuminating lamp) using a light emitting diode (hereinafter referred to as “LED”).
  • LED light emitting diode
  • the light emitted by the LED has a strong directivity and has the property of emitting light in a specific direction. If an angle representing a range in which the value is 1/2 or more with respect to the front luminance of the LED is called a radiation angle, the luminance is rapidly attenuated at an angle larger than the radiation angle. For this reason, if the LEDs are simply arranged side by side to emit light, the periphery of the LEDs becomes dim. As measures to solve this problem, methods such as tilting the direction of the mounted LED, reflecting the light emitted from the LED with a reflecting plate, diffusing with a diffusing plate, etc. are used.
  • Patent Document 1 Japanese Patent Laid-Open No. 10-282915
  • An object of the present invention is to provide a method for improving the above-described problems of the prior art and brightening the periphery of an LED with a simple configuration while avoiding a decrease in front luminance.
  • an LED illuminating device in which a light source is an LED, and along the optical axis direction of the LED at a location around the LED where a part of light emitted from the LED can enter.
  • a light source is an LED
  • an LED lighting device in which a diffusing material having a function of diffusing, scattering, or refracting light from the LED is disposed.
  • the following effects are realized by the configuration of the LED illumination device. 1. It becomes possible to illuminate the LED mounting surface, which could not be realized in the past, or the vicinity of the foot (installation location) of the LED with the light emitted by the LED itself. 2.
  • Light that is not diffused, scattered, or refracted by a diffusing material is a luminance characteristic that is inherent to LEDs.
  • the diffusion material may be arranged in parallel with the optical axis of the light emitted from the LED or with an angle to the optical axis.
  • the diffusion material may be disposed on the entire periphery or a part of the LED.
  • Both the inner surface and the outer surface of the diffusion material or either one of them may be flat or uneven.
  • the diffusion material may have a three-dimensional shape such as a round bar, a square bar, or a prismatic bar.
  • the diffusion material may be a material in which two or more bars such as round bars, square bars, or prismatic bars are connected in a plate shape or a sheet shape.
  • two or more LEDs are arranged concentrically on the central part and the outer periphery thereof, linearly, in a ring shape, or in a ring shape and concentrically in two or more rounds. You may be comprised so that it may arrange
  • FIG. 1A is a plan view showing an example of a lighting device of the present invention
  • FIG. 1B is a cross-sectional view
  • FIG. 2 is an explanatory diagram showing the progress of light in the illumination device of the present invention
  • FIGS. 3A to 3G are explanatory diagrams of examples of different shapes of the cylindrical diffusion material in the LED lighting device of the present invention.
  • 4 (a) and 4 (b) are explanatory views of different mounting examples of the LED lighting device of the present invention to the ceiling or wall surface.
  • FIG. 5 is an explanatory view of the appearance of an example of the LED lighting device of the present invention.
  • 6A is an explanatory view showing an example in which two or more LEDs are arranged in a row
  • FIGS. 7A to 7D are plan views of examples in which the inner and outer surfaces of the cylindrical diffusion material of the LED lighting device of the present invention have different shapes.
  • one LED is arranged at the center (center), and a plurality of LEDs are arranged at intervals on the outer periphery.
  • a cylindrical diffusion material 1 is concentrically arranged on the outer periphery and the outer periphery of the outer LED.
  • Each diffusion material 1 is arranged along the optical axis direction of the LED on the spread angle (emission angle) of the light emitted from the LED, and a part of the light emitted from the central LED is diffused on the outer diffusion material 1 ( 1a), a part of the light emitted from the outer LED can enter the outer diffusion material 1 (1b) and the inner diffusion material 1 (1a) from the vertical direction, and the incident light is diffused respectively.
  • the material 1 diffuses, scatters, or refracts (the traveling direction of light changes to the side). In this case, it is preferable to leave the diffusing material 1 in the open state in the optical axis direction ahead of the light emitted from the LED. Incidentally, when the diffusing material 1 is arranged ahead in the optical axis direction, the progress of light emitted from the LEDs is hindered. As shown in FIG. 1B, the LEDs are arranged on the wiring board B.
  • the angle L is smaller than the angle formed by the distance L and the height H point. If the angle is within the range, the light O1 emitted from the LED (FIG. 2) enters the diffusion material 1, diffuses, scatters, or refracts to the side and exits from the diffusion material 1 (emitted light O2). Irradiate the surrounding area (side).
  • O3 in FIG. 2 is light output from the LED and is not affected by the diffusion material 1.
  • the diffusing material 1 When the diffusing material 1 is arranged at an angle larger than the emission angle, a part of the light transmitted through the diffusing material 1 reduces the brightness, but does not pass through the diffusing material 1 and does not decrease the brightness. A part of the light transmitted through the diffusion material 1 is diffused, scattered, or refracted by the diffusion material 1 to illuminate a range of angles larger than the emission angle.
  • the material of the diffusion material for example, a semi-translucent and heat-resistant material such as tracing paper, shoji paper, and a translucent resin sheet is suitable. Of course, anything that has optical characteristics so that light is refracted and scattered may be used.
  • the diffusion material 1 may be colored. Tracing paper and shoji paper are more diffusible than thick paper.
  • the shape of the diffusion material 1 is not limited to a cylindrical shape, but a square cylindrical shape shown in FIG. 3A, a diamond-shaped cylindrical shape shown in FIG. 3B, a cylindrical shape shown in FIG.
  • the triangular shape shown in d), the streamlined cylindrical shape shown in FIG. 3 (e), the rectangular cylindrical shape shown in FIG. 3 (f), and other desired shapes can be obtained, as shown in FIG. 3 (g).
  • the diffusion material 1 can be formed into an uneven shape or a three-dimensional shape instead of a flat surface on either the inner surface or the outer surface, or either one of the inner surface and the outer surface in any of a cylindrical shape, a plate shape, a sheet shape, and the like.
  • the inner surface has triangular wavy irregularities
  • the inner and outer surfaces have wavy irregularities
  • the cylinders can be arranged in a ring shape into a cylindrical shape. It is also possible to form a three-dimensional shape in which prisms are arranged in a ring shape to form a cylinder.
  • the arrangement location of the diffusion material 1 may not be the same plane as the LED mounting position (surface), and the arrangement may not be parallel to the optical axis, but may have an angle with the optical axis. Moreover, you may arrange
  • the LED illuminating device (LED illuminating lamp) shown in FIG. 5 includes the base 2 on the base side, and the wiring board B, the LED, and the diffusion material 1 of the LED illuminating device in the heat radiating case 3 having an open end.
  • the tip of the LED and the diffusion material 1 is disposed on the opening 4 side of the tip of the case 3, and a dome-shaped cover 5 is put on the tip of the opening 4 and the LED and the diffusion material 1. is there.
  • the case 3 is preferably made of another material excellent in heat transfer, such as aluminum, which is excellent in heat dissipation and lightweight.
  • a fin 6 is provided on the outer periphery of the case 3 to enhance heat dissipation.
  • the base 2 is a base for an incandescent lamp, it can be used by being attached to a socket for the incandescent lamp.
  • the cover 5 may have other shapes.
  • the case 3 is built in (embedded in) the ceiling or the wall 7, and the LED and the cover 5 are mounted on the ceiling or the wall.
  • the power supply unit 8 can be connected to the LEDs in the case 3.
  • a hole 9 can be formed in the ceiling or wall 7, and an LED lighting device can be arranged in the hole 9 and attached to the ceiling or wall 7.
  • FIG. 6A is an example of the LED lighting device of the present invention, and is an explanatory diagram showing an example in which two or more LEDs are arranged in a row
  • FIG. 6B is a diagram illustrating two or more LEDs. It is explanatory drawing which shows the example arranged in the ring shape.
  • FIGS. 6A and 6B the same reference numerals are used for the same components as those shown in FIG.
  • the LED lighting device of the present invention can be used in various fields including indoor lighting and outdoor lighting, instead of existing incandescent bulbs and fluorescent lamps. According to the LED lighting device according to the above-described embodiment of the present invention, the following effects are realized. 1. It becomes possible to illuminate the LED mounting surface, which could not be realized in the past, or the vicinity of the foot (installation location) of the LED with the light emitted by the LED itself. 2. Light that is not diffused, scattered, or refracted by a diffusing material is a luminance characteristic that is inherent to LEDs. Therefore, by appropriately selecting the location where the diffusing material is installed, it is possible to minimize the change in luminance where lighting is required. Is possible. 3.

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

Abstract

L'invention porte sur un dispositif d'éclairage à diode électroluminescente, dont la source de lumière est une diode électroluminescente, et qui est caractérisé en ce qu'un matériau de diffusion ayant pour fonction de diffuser, de disperser ou de réfracter la lumière provenant de la diode électroluminescente est disposé dans la périphérie de la diode électroluminescente le long de la direction de l'axe optique de la diode électroluminescente sur un emplacement dans lequel une partie de la lumière émise à partir de la diode électroluminescente peut entrer.
PCT/JP2011/064303 2010-09-16 2011-06-22 Dispositif d'éclairage à diode électroluminescente WO2012035841A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010208259A JP2014075176A (ja) 2010-09-16 2010-09-16 Ｌｅｄ照明装置
JP2010-208259 2010-09-16

Publications (1)

Publication Number Publication Date
WO2012035841A1 true WO2012035841A1 (fr) 2012-03-22

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Application Number Title Priority Date Filing Date
PCT/JP2011/064303 WO2012035841A1 (fr) 2010-09-16 2011-06-22 Dispositif d'éclairage à diode électroluminescente

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JP (1) JP2014075176A (fr)
WO (1) WO2012035841A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016540345A (ja) * 2013-11-11 2016-12-22 フィリップス ライティング ホールディング ビー ヴィ 照明器具
JP2017123347A (ja) * 2017-04-12 2017-07-13 三菱電機株式会社 照明ランプ
US10989368B2 (en) 2017-04-13 2021-04-27 Carrier Corporation Notification device for a surface of a building interior

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019129082A (ja) * 2018-01-25 2019-08-01 大光電機株式会社 照明装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004347714A (ja) * 2003-05-20 2004-12-09 Kokuyo Denko Kk 照明パネル
JP2007200612A (ja) * 2006-01-24 2007-08-09 Kondo Kogei:Kk 照明ユニットおよび照明装置
JP2008137434A (ja) * 2006-11-30 2008-06-19 Lecip Corp マーカーランプ
JP2009212087A (ja) * 2008-02-08 2009-09-17 Toshiba Lighting & Technology Corp 照明装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004347714A (ja) * 2003-05-20 2004-12-09 Kokuyo Denko Kk 照明パネル
JP2007200612A (ja) * 2006-01-24 2007-08-09 Kondo Kogei:Kk 照明ユニットおよび照明装置
JP2008137434A (ja) * 2006-11-30 2008-06-19 Lecip Corp マーカーランプ
JP2009212087A (ja) * 2008-02-08 2009-09-17 Toshiba Lighting & Technology Corp 照明装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016540345A (ja) * 2013-11-11 2016-12-22 フィリップス ライティング ホールディング ビー ヴィ 照明器具
US9644815B2 (en) 2013-11-11 2017-05-09 Philips Lighting Holding B.V. Luminaire
JP2017123347A (ja) * 2017-04-12 2017-07-13 三菱電機株式会社 照明ランプ
US10989368B2 (en) 2017-04-13 2021-04-27 Carrier Corporation Notification device for a surface of a building interior

Also Published As

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