[go: up one dir, main page]

WO2016021675A1 - Dispositif d'éclairage utilisant une diode électroluminescente - Google Patents

Dispositif d'éclairage utilisant une diode électroluminescente Download PDF

Info

Publication number
WO2016021675A1
WO2016021675A1 PCT/JP2015/072309 JP2015072309W WO2016021675A1 WO 2016021675 A1 WO2016021675 A1 WO 2016021675A1 JP 2015072309 W JP2015072309 W JP 2015072309W WO 2016021675 A1 WO2016021675 A1 WO 2016021675A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
guide plate
emitting diode
light emitting
phosphor
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/JP2015/072309
Other languages
English (en)
Japanese (ja)
Inventor
正生 野口
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.)
Caravell Co Ltd
Original Assignee
Caravell 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
Application filed by Caravell Co Ltd filed Critical Caravell Co Ltd
Publication of WO2016021675A1 publication Critical patent/WO2016021675A1/fr
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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • F21V9/45—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity by adjustment of photoluminescent elements
    • 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
    • F21V13/12—Combinations of only three kinds of elements
    • F21V13/14—Combinations of only three kinds of elements the elements being filters or photoluminescent elements, reflectors and refractors
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details

Definitions

  • the present invention relates to an illuminating device using a light emitting diode, and more particularly to an illuminating device realized by combining a diode and a phosphor having the property of being excited and emitting light.
  • the first is to package each blue, green, and red light emitting diode and simultaneously emit light to create pseudo white light.
  • the other is a method of placing a yellow phosphor on the upper layer of the blue light-emitting diode, which creates a pseudo-white light by synthesizing the blue component and the yellow component.
  • the latter method which has advantages suitable for a wider range of applications, is now mainstream, and a method for compensating for this color rendering is a problem.
  • the first thought as a method of controlling the color was a method of adjusting each light emitting component of a light emitting diode packaged with the three primary colors according to the application.
  • the light emitting diode since the light emitting diode is structurally expensive, it has not been widely used.
  • a number of light emitting diodes of the three primary colors are arranged on the substrate, and a method of adjusting each component is also adopted, but the structure is not simple and there is also a problem with the uniformity of the illumination color. It is difficult to say that it is generally popular.
  • the following method that can be considered as a method for controlling the color tone is also a method of effectively using phosphors that have been improved.
  • a blue light emitting diode is disposed as a light source, and the phosphor is not integrated with the upper layer, but the phosphor is disposed on another support, so that the relative relationship between the light source and the phosphor
  • a method for realizing a structure that can change the position and adjusting the color of the illumination light has been proposed. According to this method, there is an advantage that no electrical control is required to adjust the color, and the adjustment can be easily performed.
  • Patent Document 3 instead of changing the relative position of the light source and the phosphor, the reflectance for each color component of the reflection sheet of the light guide plate necessary for surface illumination is locally changed and moved. There has been proposed a method for adjusting the color tone by adjusting the color tone. Even in this method, electrical control is not necessary for adjusting the color, and the color can be changed with a relatively simple structure.
  • blue light problem there is an increasing concern about the effect of blue light components on human health, which is collectively referred to as the “blue light problem”.
  • Products such as filters that reduce the color of blue light components are already in widespread use on computer displays, but there is a demand for reducing the color of blue light components in lighting devices that use light-emitting diodes.
  • the present invention has been made in view of such a situation, and in a lighting device using a light emitting diode, a color changing function having sufficiently uniform color and brightness is realized with a simple structure as much as possible. It is an object of the present invention to provide a device that is allowed to operate. Another object of the present invention is to provide a device that can solve the “blue light problem” in a lighting device using a light emitting diode.
  • the present inventors have made an illumination device that allows light from a light source composed of a group of light-emitting diodes to be incident from the side of the light guide plate and emits illumination light from a surface orthogonal to the incident direction.
  • discontinuous phosphor groups are arranged on the light incident surface of the light guide plate, and light emitting diode groups are arranged corresponding to these so that the mutual positional relationship can be changed, thereby allowing light emission to enter the light guide plate. It was found that uniform illumination light with different colors can be obtained by changing the ratio of direct light from the diode group and emission from the fluorescent spot group.
  • an illuminating device that makes light from a light source composed of a light emitting diode group incident from the side of the light guide plate and emits illumination light from a surface orthogonal to the incident direction.
  • a phosphor group that converts the wavelength of light from the light source is discontinuously disposed on at least one light incident surface of the light guide plate, and by changing the position of at least one of the light guide plate or the light emitting diode group,
  • ⁇ 2> The shape of the cross section of the light guide plate parallel to the light incident direction is rectangular, the light emitting diode group is installed in parallel to the phosphor group, and at least one of the light guide plate and the light emitting diode group slides.
  • the cross-sectional shape of the light guide plate parallel to the light incident direction is circular, the phosphor group and the light emitting diode group are arranged on a circumference having the same center as the light guide plate, and the light guide plate
  • ⁇ 4> In an illuminating device that makes light from a light source composed of a light-emitting diode group incident from the side of the light guide plate and emits illumination light from a surface perpendicular to the incident direction.
  • An illumination device using a light emitting diode wherein a phosphor group that converts a wavelength component of blue contained in the light source into another wavelength component is disposed on at least one light incident surface of the light guide plate.
  • a phosphor group that converts a wavelength component of blue contained in the light source into another wavelength component is disposed on at least one light incident surface of the light guide plate.
  • ⁇ 6> In an illuminating device that makes light from a light source composed of a light emitting diode group incident from the side of the light guide plate and emits illumination light from a surface perpendicular to the incident direction.
  • a phosphor that converts the wavelength component of blue contained in the light source into a wavelength component of green on at least one light incident surface of the light guide plate, and a wavelength component that changes the wavelength component of blue contained in the light source from yellow to red Light emission characterized in that a phosphor group composed of at least two kinds of phosphors for wavelength conversion is arranged in an overlapping manner so that the one that converts the wavelength component from yellow to red is close to the light source Lighting device using diodes.
  • the illuminating device using the light emitting diode of the present invention it is possible to realize illumination capable of changing the color while sufficiently securing the light amount and uniformity with a very simple structure and method. Moreover, according to the illuminating device using the light emitting diode of the present invention, bright white illumination in which the blue light problem is solved can be realized.
  • the figure which compares the structure of the general light emitting diode lighting device and the structure of the lighting device using the light emitting diode of the present invention The figure which shows one Example of the illuminating device using the light emitting diode of this invention.
  • the figure which showed one Example of the illuminating device using the light emitting diode of this invention of FIG. 3 in three dimensions The figure which shows one Example of the illuminating device using the light emitting diode of this invention.
  • the figure which shows one Example of the illuminating device using the light emitting diode of this invention The figure which shows one Example of the illuminating device using the light emitting diode of this invention.
  • the figure which shows one Example of the illuminating device using the light emitting diode of this invention The figure which shows the wavelength spectrum at the time of mixing a fluorescent substance in the illuminating device using the light emitting diode of this invention of FIG.
  • the figure which shows one Example of the illuminating device using the light emitting diode of this invention The figure which shows the wavelength spectrum of the illuminating device using the light emitting diode of this invention of FIG.
  • the figure which shows one Example of the illuminating device using the light emitting diode of this invention The figure which shows one Example of the illuminating device using the light emitting diode of this invention.
  • FIG. 1 (a) schematically shows a cross section of a surface illumination device using a general light guide plate.
  • a light source is disposed on the side of the light guide plate 101.
  • the light guide plate 101 is formed so that the shape or the diffusion pattern continuously changes so that the amount of light emitted to the irradiation surface side is adjusted according to the distance from the light source to be arranged, and the light amount distribution in the illumination surface. Is designed to be uniform.
  • the light source is a light emitting diode
  • the light emitting diode 103 is disposed on the substrate 102.
  • a method in which a yellow phosphor 104 is integrated on a light emitting surface of a blue light emitting diode 103 and pseudo white light is generated by combining blue and yellow has become common.
  • the pseudo white light thus produced enters the light guide plate from the side surface of the light guide plate 101 and is prevented from leaking to the back side by the reflection plate 105 disposed on the back surface of the light guide plate 101.
  • a diffusion plate 106 is disposed on the illumination surface side of the light guide plate 101, and the light amount distribution made uniform to some extent by the light guide plate 101 is further diffused to improve the uniformity.
  • FIG. 1 (b) schematically shows a cross section of a lighting apparatus using the light emitting diode of the present invention.
  • a general structure in which the reflecting plate 112 is disposed on the back side of the light guide plate 111 and the diffusion plate 113 is disposed on the illumination side is employed.
  • the reflection plate 112 and / or the diffusion plate 113 may be integrated with the light guide plate 111 or may be directly formed on the light guide plate 111 by a method such as printing.
  • Light emitted from a light emitting diode 115 such as blue light disposed on the substrate 114 is incident from the side surface of the light guide plate 111, but the phosphor 116 is not integrated with the light emitting diode 115 but on the side surface of the light guide plate 111. It is a feature of the lighting device using the light emitting diode of the present invention to be disposed in the position.
  • the phosphors 116 are discontinuously disposed on the side surfaces of the light guide plate 111, and movable means is provided on at least one of the light emitting diode substrate 114 and the light guide plate 111. Thereby, the covering region of the light emitting diode 115 by the phosphor 116 changes. Therefore, since the ratio of the direct light from the light emitting diode 115 and the light wavelength-converted by the phosphor 116 is changed, these lights are uniformly mixed in the light guide plate 111, and illumination colors having different colors are realized. .
  • the phosphor 116 is a method in which a tape or the like disposed on a transparent support is attached to the side surface of the light guide plate 111, or a method in which a large number of depressions are provided in the side surface of the light guide plate 111 and the phosphor 116 is filled therein Etc., and is fixed at a predetermined position on the side surface of the light guide plate.
  • the light emitting diode 115 may be a white light emitting diode that is integrated with the phosphor itself. In this case, the phosphor 116 is not a yellow phosphor, but orange or red that slightly changes the color of white light. Or a color filter that changes the light transmittance for each wavelength band.
  • FIG. 2 shows a structure in which a light guide plate has a rectangular shape as an embodiment of a lighting device using a light emitting diode of the present invention.
  • a rectangular light guide unit 202 is incorporated and fixed inside the housing 201.
  • the light guide unit 202 has a diffusion structure on the illumination direction side of the light guide plate and a reflection structure on the back side thereof.
  • a phosphor spot group 203 is formed on the side surface (light incident surface) of the light guide unit 202 by a method such as printing or embedding.
  • the phosphor spot group 203 is excited by the radiated light from the light emitting diode group 205, and emits light in a wavelength band that can generate pseudo white light when mixed with the radiated light. With spots. Further, a substrate 204 on which the light emitting diode group 205 is mounted is disposed at a position adjacent to the phosphor spot group 203 so that sufficient excitation light can be supplied. A substrate installation groove 206 is provided in the housing 201 so that the substrate 204 can be slid and adjusted in parallel with the phosphor spot group 203, whereby the direct light component from the light emitting diode group 205 and the phosphor spot group are arranged. The illumination color can be changed by changing the ratio of the light emitting components from 203. When it is necessary to increase the amount of light, a similar structure may be provided on a plurality of side surfaces of the light guide unit 202 as shown in FIG.
  • a phosphor group that converts the wavelength of light from the light source
  • Illumination characterized in that the wavelength distribution of illumination light is changed by discontinuously disposing on at least one light incident surface of the light guide plate and changing the position of at least one of the light guide plate or the light emitting diode group.
  • the light guide plate has a rectangular cross-sectional shape parallel to the light incident direction, the light emitting diode group is installed in a groove parallel to the phosphor group, and the light emitting diode group can slide.
  • a device using a light emitting diode is not limited to a light emitting diode.
  • the illuminating device using the light emitting diode of the present invention shown in FIG. 2 since the same effect can be obtained even if the light guide plate is slid, it may have the following characteristics.
  • a phosphor group that converts the wavelength of light from the light source Illumination characterized in that the wavelength distribution of illumination light is changed by discontinuously disposing on at least one light incident surface of the light guide plate and changing the position of at least one of the light guide plate or the light emitting diode group.
  • FIG. 3 shows a structure in which the light guide plate has a circular shape as another embodiment of the lighting device using the light emitting diode of the present invention.
  • a circular light guide unit 302 is incorporated in the housing 301.
  • a phosphor spot group 303 is formed on a side surface (light incident surface) of the light guide unit 302 by a method such as printing or embedding.
  • a substrate 304 on which the light emitting diode group 305 is mounted is arranged concentrically close enough to supply sufficient excitation light to the phosphor spot group 303. Since the light emitting diode group 305 must be arranged on the circumference, a separate substrate is prepared as shown in FIG. 3, or the substrate is manufactured as a single substrate using a flexible flexible substrate.
  • the light guide unit 302 When the light guide unit 302 is circular, it is structurally easier to change the relative position of the light emitting diode group and the phosphor spot group by rotating the light guide unit 302. Therefore, the light guide unit 302 is rotated toward the reflector side of the light guide unit 302. It is preferable to provide a shaft structure and to provide a hole for housing the rotating shaft on the housing 301 side.
  • FIG. 4 is a three-dimensional view of the structure shown in FIG. 3 as a perspective view.
  • a circular recess is provided in the center of the housing 401, and a diffusion plate 402 is provided on the illumination direction side.
  • a light emitting diode group 403 is installed on the side surface of the circular depression.
  • a circular light guide plate 404 is accommodated in the recess, and a plurality of discontinuous phosphor spot groups 405 are provided on the side surface of the light guide plate 404.
  • a reflection plate 406 is installed on the surface opposite to the irradiation direction of the light guide plate 404, and a rotation shaft 407 is provided at the center thereof.
  • the light guide plate 404, the diffusion plate 402, and the reflection plate 406 may be integrated in advance.
  • a phosphor group that converts the wavelength of light from the light source
  • Illumination characterized in that the wavelength distribution of illumination light is changed by discontinuously disposing on at least one light incident surface of the light guide plate and changing the position of at least one of the light guide plate or the light emitting diode group.
  • the light guide plate has a circular cross-sectional shape parallel to the light incident direction, and the phosphor group and the light emitting diode group are arranged on a circumference having the same center as that of the light guide plate.
  • the structure shown in FIG. 5 may be used.
  • the circular light guide plate 501 has a side surface that is not perpendicular to the irradiation surface and has an angle of 45 to 60 degrees
  • the surface having the reflection plate 502 is the surface having the diffusion plate 503, that is, irradiation. It has a larger radius than the surface.
  • the reflection plate 502 is formed with a radius similar to that of the diffusion plate 503, so that the outer periphery of the light guide plate 501 on the reflection plate side is not covered with the reflection plate.
  • the phosphor spot group 504 is discontinuously formed here. Deploy.
  • the substrate 506 on which the phosphor diode group 505 is mounted can be formed in a planar shape, and therefore a strong substrate material is used. can do.
  • the reflection ring 507 is installed on the outer peripheral slope of the light guide plate 501.
  • the reflection ring 507 may also be integrated with the diffusion plate by a method such as printing.
  • a planar substrate can be used without using a complicated structure as shown in FIG. That is, as shown in FIG. 6, a phosphor spot group 602 is disposed on the side surface of a circular diffusion plate 601, and a ring-shaped substrate 604 is disposed so as to surround the outer periphery thereof. If the side-emitting light emitting diode group 603 is installed on this substrate, irradiation light is generated on the side of the substrate 604, so that it is possible to achieve light entering the diffusion plate 601.
  • the structure to be used is selected in view of the assumed cost and strength.
  • a circular light guide plate 701 can be rotated integrally with the diffusion plate 702 by bonding or the like. In this state, it is housed in the housing 703. At this time, the outer periphery of the diffusion plate 702 or a part thereof, for example, three points at positions rotated by 120 degrees from the center are formed on the circular inner wall of the housing 703. Contact. Further, a rib structure 704 having a smaller radius than the outer periphery of the diffusion plate 702 is provided on the illumination side of the housing 703.
  • the light guide plate 701 and the diffusion plate 702 can rotate inside the housing 703, and the phosphor 705 disposed on the side surface of the light guide plate 701 and the housing 703 side. Since the arranged light emitting diodes 706 are not in contact with each other, they are not worn by friction.
  • the diffuser plate has a larger diameter than the light guide plate, or a part of the diffuser plate protrudes and comes into contact with the inner wall of the housing so that the distance between the phosphor and the light emitting diode can be rotated while being kept constant.
  • a similar structure may be provided on the housing side, that is, a circular recess that accommodates the diffusion plate or a protrusion structure that prevents the diffusion plate from approaching within a certain distance from the inner wall of the housing.
  • a knob hole 707 is provided on the illumination side of the casing 703, and the knob 708 on the illumination side of the diffuser plate protrudes outside the casing through this hole. Accordingly, the color can be adjusted by rotating the diffusion plate 702 and the light guide plate 701 that moves integrally with the diffusion plate 702 while holding the knob 708 with a finger.
  • the knob 708 may be on the back side instead of the lighting side. Since the rotation movable range of the light guide plate 701 is determined by the length of the knob hole 707 in the circumferential direction, it is possible to eliminate a possibility that the light guide plate 701 is rotated more than necessary and causes a failure.
  • the illumination device using the light emitting diode of the present invention as a phosphor group arranged on at least one light incident surface of the light guide plate, wavelength conversion of a blue wavelength component contained in the light source into another wavelength component is performed.
  • the phosphor group that converts the wavelength component of blue contained in the light source into another wavelength component may be a continuous phosphor group or a discontinuous phosphor group.
  • a discontinuous phosphor group it is naturally possible to use it for the construction of an illumination device using the light emitting diode of the present invention from FIG. 2 to FIG. Adopted as appropriate.
  • a green phosphor may be mixed with a yellow or orange phosphor 116. It is done. However, when such mixing is actually performed, there is a problem in that the overall fluorescence intensity is reduced and the illumination becomes dark.
  • FIG. 8A shows a wavelength spectrum 801 having the configuration shown in FIG. 1B.
  • a wavelength spectrum 802 shown in FIG. Not only the blue component near the wavelength of 460 nm but also the component from green to red around the wavelength of 520 nm to 660 nm is reduced.
  • the lighting device using the light emitting diode of the present invention in the basic configuration of the lighting device using the light emitting diode of the present invention shown in FIG. A configuration in which the obtained phosphor layer is divided into two in a direction perpendicular to the incident direction of the light source is adopted as necessary.
  • the light emitted from the light emitting diode 902 toward the side surface of the light guide plate 901 undergoes different wavelength conversion by the phosphor X903 or the phosphor Y904 and enters the light guide plate 901.
  • the phosphor X903 is a yellow or orange color
  • the phosphor Y904 is a green phosphor having a high absorbance with respect to blue
  • the wavelength spectrum is such that the yellow and orange components decrease and the green component increases. Since the phosphor layer is divided into two parts, the component converted into green light does not receive the secondary absorption as described above, so that the blue component is reduced as in the wavelength spectrum 1001 shown in FIG. By increasing the other visible light components, it is possible to realize bright white illumination that solves the blue light problem.
  • the characteristics of the lighting device using the light emitting diode of the present invention shown in FIG. 9 are summarized as follows.
  • a phosphor that converts the wavelength component of blue contained in the light source into a wavelength component of green on at least one light incident surface of the light guide plate, and a wavelength component that changes the wavelength component of blue contained in the light source from yellow to red
  • An illuminating device using a light emitting diode characterized in that phosphor groups composed of at least two types of phosphors for wavelength conversion are arranged so that different types of phosphors do not overlap each other.
  • the phosphor X1103 and the phosphor Y1104 are layered, and the light emitted from the light emitting diode 1102 is always incident on the light guide plate 1101 through these two layers.
  • the phosphor Y1104 transmits blue light without being subjected to wavelength conversion by the phosphor X1103. It absorbs a part of and converts to green.
  • a phosphor group composed of at least two kinds of phosphors for wavelength conversion is arranged in an overlapping manner so that the one that converts the wavelength component from yellow to red is close to the light source Lighting device using diodes.
  • phosphor X903, phosphor Y904, phosphor X1103, and phosphor Y1104 are all continuous phosphor groups.
  • a discontinuous phosphor group may be used.
  • the light emitting diode of the present invention from FIG. 2 to FIG. 7 is used.
  • it can be used for the configuration of the lighting device, and is appropriately adopted as necessary.
  • the lighting device using the light emitting diode of the present invention can be used mainly for applications such as indoor lighting, image processing, and product design examination.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Planar Illumination Modules (AREA)
  • Led Device Packages (AREA)

Abstract

L'objectif de la présente invention est de pourvoir à un dispositif d'éclairage utilisant une diode électroluminescente, possédant une structure aussi simple que possible et pouvant changer de couleur tout en assurant l'uniformité et la quantité de lumière. La présente invention porte sur un dispositif d'éclairage destiné à recevoir de la lumière incidente, par le côté d'une plaque de guidage de lumière, en provenance d'une source de lumière comprenant un groupe de diodes électroluminescentes, et à émettre de la lumière d'éclairage par une surface s'étendant droit dans la direction d'incidence, un groupe de corps fluorescents discontinus étant disposés sur la surface d'incidence de la plaque de guidage de lumière, un groupe de diodes électroluminescentes étant disposées de manière à leur correspondre, et les relations de position entre eux étant modifiables, permettant de réaliser un éclairage uniforme de couleurs différentes par modification du rapport entre la lumière directe, incidente sur la plaque de guidage de lumière en provenance du groupe de diodes électroluminescentes, et la lumière émise par le groupe de corps fluorescents. En outre, il est possible d'obtenir un éclairage vif en lumière blanche pour résoudre le problème de lumière bleue, par utilisation d'un groupe de corps fluorescents servant à réaliser une conversion de longueur d'onde d'une composante de longueur d'onde bleue comprise dans la source de lumière en une autre composante de longueur d'onde, à titre de groupe de corps fluorescents à disposer sur une ou plusieurs surfaces d'incidence de la plaque de guidage de lumière.
PCT/JP2015/072309 2014-08-06 2015-08-06 Dispositif d'éclairage utilisant une diode électroluminescente Ceased WO2016021675A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-160890 2014-08-06
JP2014160890A JP2017199454A (ja) 2014-08-06 2014-08-06 発光ダイオードを利用した照明装置

Publications (1)

Publication Number Publication Date
WO2016021675A1 true WO2016021675A1 (fr) 2016-02-11

Family

ID=55263932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/072309 Ceased WO2016021675A1 (fr) 2014-08-06 2015-08-06 Dispositif d'éclairage utilisant une diode électroluminescente

Country Status (2)

Country Link
JP (1) JP2017199454A (fr)
WO (1) WO2016021675A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017104281U1 (de) * 2017-07-19 2018-10-25 Zumtobel Lighting Gmbh Leuchte
US12191429B2 (en) 2021-04-08 2025-01-07 Nichia Corporation Light emitting device
CN119620467A (zh) * 2024-12-31 2025-03-14 深圳创维显示科技有限公司 背光模组及显示装置
US12352409B2 (en) 2021-12-14 2025-07-08 Nichia Corporation Light source device
US12410904B2 (en) 2022-03-29 2025-09-09 Nichia Corporation Light emitting module

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7373357B2 (ja) * 2019-10-29 2023-11-02 シーシーエス株式会社 検査システム、及び、検査用照明装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007149500A (ja) * 2005-11-28 2007-06-14 Sony Corp 光源装置、表示装置、及び光源装置の製造方法
JP2008010556A (ja) * 2006-06-28 2008-01-17 Stanley Electric Co Ltd Ｌｅｄ光源装置およびそれを使用したｌｅｄバックライト
JP2012169120A (ja) * 2011-02-14 2012-09-06 Minebea Co Ltd 面状照明装置
JP2012199227A (ja) * 2011-03-21 2012-10-18 Zhongshan Weiqiang Technology Co Ltd Ｌｅｄ導光板照明器具モジュール

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007149500A (ja) * 2005-11-28 2007-06-14 Sony Corp 光源装置、表示装置、及び光源装置の製造方法
JP2008010556A (ja) * 2006-06-28 2008-01-17 Stanley Electric Co Ltd Ｌｅｄ光源装置およびそれを使用したｌｅｄバックライト
JP2012169120A (ja) * 2011-02-14 2012-09-06 Minebea Co Ltd 面状照明装置
JP2012199227A (ja) * 2011-03-21 2012-10-18 Zhongshan Weiqiang Technology Co Ltd Ｌｅｄ導光板照明器具モジュール

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017104281U1 (de) * 2017-07-19 2018-10-25 Zumtobel Lighting Gmbh Leuchte
US12191429B2 (en) 2021-04-08 2025-01-07 Nichia Corporation Light emitting device
US12352409B2 (en) 2021-12-14 2025-07-08 Nichia Corporation Light source device
US12410904B2 (en) 2022-03-29 2025-09-09 Nichia Corporation Light emitting module
CN119620467A (zh) * 2024-12-31 2025-03-14 深圳创维显示科技有限公司 背光模组及显示装置

Also Published As

Publication number Publication date
JP2017199454A (ja) 2017-11-02

Similar Documents

Publication Publication Date Title
WO2016021675A1 (fr) Dispositif d'éclairage utilisant une diode électroluminescente
JP6138799B2 (ja) 混合光学部品を有するｌｅｄベース照明器具
JP5724245B2 (ja) 光源装置、照明装置及び投影表示装置
JP6166723B2 (ja) 照明装置および投影装置
CN103339549B (zh) 发光装置
JP2009016058A (ja) 照明装置及びこれを用いた照明器具
JP5398742B2 (ja) 発光デバイス
WO2012124637A1 (fr) Dispositif d'éclairage
JP2013037788A (ja) 発光体を用いた面照明光源装置
JP2009245712A (ja) 照明器具
JP2014508387A (ja) 調整可能な光出力を有する点灯アセンブリ
WO2012050983A2 (fr) Traitement du bord d'un élément optique pour un dispositif d'éclairage
JP2011204657A (ja) 光束制御部材およびこれを用いた照明装置
CN105339827A (zh) 照明设备
JP6133306B2 (ja) ランプシェードを有する照明ユニット
CN109891152B (zh) 包括具有类似关闭状态外观的多个不同光源的照明设备
KR100999446B1 (ko) 하이브리드 조명 시스템
JP2012099331A (ja) 照明装置
TW201424048A (zh) 可調變色溫的燈具
CN102934242B (zh) 用以控制白色发光二极管(led)的光通量的色度的方法及用以执行该方法的装置
TWI557369B (zh) 照明用罩以及照明裝置
JP5628017B2 (ja) 電球形ｌｅｄ光源
JP5565775B2 (ja) Ｌｅｄ照明装置
JP2016225311A (ja) 照明器具
JP5631226B2 (ja) 照明装置

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: 15829340

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: 15829340

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP