WO2011033551A1 - Appareil d'éclairage - Google Patents

Appareil d'éclairage Download PDF

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Publication number
WO2011033551A1
WO2011033551A1 PCT/JP2009/004594 JP2009004594W WO2011033551A1 WO 2011033551 A1 WO2011033551 A1 WO 2011033551A1 JP 2009004594 W JP2009004594 W JP 2009004594W WO 2011033551 A1 WO2011033551 A1 WO 2011033551A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
led light
shape
lighting device
board
Prior art date
Application number
PCT/JP2009/004594
Other languages
English (en)
Japanese (ja)
Inventor
中垣忠彦
山本和明
Original Assignee
アリスト・エンジニアリング プライベート リミテッド
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 アリスト・エンジニアリング プライベート リミテッド filed Critical アリスト・エンジニアリング プライベート リミテッド
Priority to PCT/JP2009/004594 priority Critical patent/WO2011033551A1/fr
Publication of WO2011033551A1 publication Critical patent/WO2011033551A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/50—Light sources with three-dimensionally disposed light-generating elements on planar substrates or supports, but arranged in different planes or with differing orientation, e.g. on plate-shaped supports with steps on which light-generating elements are mounted
    • 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]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Definitions

  • the present invention relates to a lighting device suitable for use in internally illuminated signboards.
  • the interior lighting signboard is a signboard that has been used extensively in various fields including stores, with a lighting device such as a fluorescent lamp installed in the signboard to enhance the notification effect at night.
  • FIG. 4 is a structural diagram of an internally illuminated signboard.
  • an internally illuminated signboard 1 covers a front opening of a box 3 with a diffusing plate 2 made of acrylic or the like on which characters or figures are drawn, and further an illumination device 4 is arranged inside the box 3. is there.
  • the illuminating device 4 fluorescent lamps and incandescent bulbs have been used for a long time.
  • LED light sources that are advantageous in terms of power saving performance and lifetime have come to be used.
  • the LED light source is a semiconductor element (Light Emitting Diode) that emits light when a DC voltage is applied between electrodes (anode and cathode), and has high brightness comparable to that of an incandescent light bulb.
  • LED light source is a semiconductor element (Light Emitting Diode) that emits light when a DC voltage is applied between electrodes (anode and cathode), and has high brightness comparable to that of an incandescent light bulb.
  • it is a “point light source” that emits light at a pinpoint, uneven brightness tends to occur when used for the above-mentioned internally illuminated signboards, and a device for uniformly illuminating the entire signboard Is required.
  • LED light sources arranged in a plurality of rows are known.
  • the entire diffuser plate 2 is uniformly and uniformly illuminated by the n rows ⁇ m LED light sources 10, luminance unevenness is eliminated and the above-described disadvantages are avoided.
  • the conventional technology has a configuration in which a large number of LED light sources are spread on the bottom surface of the signboard box, the number of LED light sources is proportional to the size of the signboard, particularly in large signboards. There is a problem that it increases, leading to an increase in cost.
  • the applicant of the present invention was previously arranged obliquely with respect to the bottom surface of the internally illuminated signboard as an illuminating device capable of performing uniform illumination while suppressing uneven brightness without increasing the number of LED light sources.
  • An illumination device is characterized in that an LED light source is attached to a substrate (Japanese Patent Application No. 2009-92610).
  • the technology related to the lighting device is referred to as “already proposed technology”.
  • the first lighting device 14 on the left side of the drawing opens the two substrates 16 and 17 in a square shape, and the outside of the two substrates 16 and 17 opened in a square shape.
  • a plurality of LED light sources 18 and 19 are mounted on the surface, and similarly, the second lighting device 15 on the right side of the drawing also opens the two substrates 20 and 21 in a letter C shape.
  • FIG. 4 This is different from the prior art (FIG. 4) in that a plurality of LED light sources 22 and 23 are mounted on the outer surfaces of the substrates 20 and 21 that are opened in a square shape.
  • the diffuser plate 12 is transmitted and illuminated from the back by light from two illumination devices (first and second illumination devices 14 and 15). Specifically, the left side part (a part) of the diffusion plate 12 is illuminated by the light P1 from the LED light source 18 of the first lighting device 14, and the right side part (a part) of the diffusion plate 12 is the second lighting device. Illuminated by the light P2 from the 15 LED light sources 23, and further, the central portion (C) of the diffusion plate 12 is illuminated by the lights P3 and P4 from the LED light sources 19 and 22 of the first illumination device 14 and the second illumination device 15. Illuminated.
  • an object of the present invention is to provide an illuminating device capable of performing uniform illumination while suppressing occurrence of luminance unevenness even when, for example, a narrow-angle LED light source is used.
  • the invention according to claim 1 is an illumination device applied to an internally illuminated signboard, and includes a first substrate and a second substrate disposed obliquely with respect to a bottom surface of the internally illuminated signboard, The substrate and the second substrate are formed in a comb shape, and the comb teeth of the first substrate and the second substrate are alternately crossed and combined, and the surfaces of the first substrate and the second substrate facing each other. It is an illuminating device characterized by arranging an LED light source in each.
  • the invention according to claim 2 is the illumination device according to claim 1, wherein a plurality of sets of the first substrate and the second substrate are provided on the bottom surface of the internally illuminated signboard.
  • each of the first substrate and the second substrate has a long flat plate portion and a plurality of protruding portions protruding at equal intervals from one side of the flat plate portion.
  • the lighting device according to claim 1 wherein an LED light source is attached to the portion.
  • the cross-sectional shape is an X shape, a V shape, a Y shape, or a mixed shape thereof.
  • the lighting device according to claim 1 wherein:
  • the invention according to claim 5 is characterized in that the number of LED light sources arranged on each of the facing surfaces of the comb teeth of the first substrate and the second substrate is plural per comb tooth.
  • an illuminating device that can perform uniform illumination while suppressing occurrence of luminance unevenness even when a narrow-angle LED light source is used.
  • an illuminating device 31 includes an elongated base member 32 and two substrates (hereinafter referred to as the following) that are placed on the base member 32 and whose lower end engages with an inner groove 32a of the base member 32.
  • a plurality (four in each case) of LED light sources 39 are arranged in each case.
  • FIG. 2 is a single plan view (a), a combined view (b), and a combined sectional view (c) of the first and second substrates 33 and 34.
  • substrate 33 has what is called the elongate flat plate part 33a and the some protrusion part 33b protruded from the one side of the flat plate part 33a at equal intervals.
  • the LED light source 39 is attached to each protrusion 33b.
  • the second substrate 34 also has the same comb-teeth shape as the first substrate 33 (exactly the same shape as the first substrate 33 rotated by 180 degrees in the horizontal direction), and is the same as the first substrate 33.
  • a plurality of protrusions 34b protruding at equal intervals from one side of the flat plate part 34a, and an LED light source 39 is attached to each of the protrusions 34b.
  • the first and second substrates 33 and 34 having such a unitary shape are combined so that their comb teeth (protruding portions 33b) alternately intersect, and (c ), The other sides of the flat plate portions 33a and 34b (sides without the protruding portions 33b and 34b) are engaged with the inner groove 32a of the base member 32 and assembled.
  • the cross-sectional shape of the first and second substrates 33 and 34 when viewed from the short side is a shape similar to the alphabet “X”.
  • the cross-sectional shape is referred to as an X shape.
  • FIG. 3 is a structural diagram of an internally illuminated signboard using the lighting device 31 of the embodiment.
  • an internally illuminated signboard 40 has a diffusion plate 41 made of acrylic or the like on which characters or figures are drawn, and a box 42 whose front opening is closed by the diffusion plate 41.
  • a plurality of illumination devices 31 of the embodiment are arranged on the bottom surface.
  • the number of the illuminating devices 31 in the illustrated example is set to two for convenience.
  • the two illuminating devices 31 on the left side of the drawing are the first illuminating device 31L and the drawing.
  • the one on the right side is referred to as a second lighting device 31R.
  • the LED light source 39 used in the first and second lighting devices 31L and 31R is a narrow-angle type, for example, a light spreading angle of 90 degrees.
  • Pa, Pb, Pc, and Pd represent the light emitted from the first and second lighting devices 31L and 31R.
  • Pa is attached to the first substrate 33 of the first lighting device 31L.
  • Pb is light from the LED light source 39 attached to the second substrate 34 of the first illumination device 31L
  • Pc is from the LED light source 39 attached to the first substrate 33 of the second illumination device 31R.
  • Pd represents light from the LED light source 39 attached to the second substrate 34 of the second illumination device 31R.
  • the LED light source 39 of the present embodiment is a “90-degree narrow-angle type”, the light spreading angles of Pa, Pb, Pc, and Pd are all 90 degrees.
  • the left part of the diffusion plate 41 is referred to as A part, the central part as B part, and the right part as C part.
  • a part is an illumination part by Pa
  • B part is an illumination part by Pb and Pc
  • C part is an illumination part by Pd.
  • Part A and part B overlap in part
  • part B and part C also overlap in part. Accordingly, since these A to C portions are continuously illuminated, there is no bright and dark stripe pattern as in the previously proposed technique (see FIG. 5) (the diffuser plate 41 has no luminance unevenness and is uniform. It is shining now).
  • the internally illuminated signboard 40 using the lighting device 31 of the present embodiment can eliminate uneven brightness even when the narrow-angle LED light source 39 is used. Although it is superior to the previously proposed technology (see FIG. 5), the reason can be explained as follows.
  • the LED has strong light straightness, and does not irradiate omnidirectionally (360 degree irradiation) like the light from a fluorescent tube, but irradiates light that is narrowed to some extent.
  • LEDs having such light directivity characteristics can be classified into those having a wide light spreading angle and those having a narrow light spreading angle. As described above, a narrow one is referred to as a “narrow angle type”, and a wide one is referred to as a “wide angle type” for convenience.
  • the entire diffuser plate 41 can be illuminated uniformly and uniformly
  • the entire diffuser plate 41 can be illuminated uniformly and uniformly
  • the first and second illumination devices 31L and 31R (1) having two substrates (first substrate 33 and second substrate 34) crossed in an X-shape; (2) facing surfaces of these two substrates (first substrate 33 and second substrate 34); Two points of attaching the LED light source 39 to each are at least essential constituent requirements.
  • the radiation angle (whether it is a narrow angle type or a wide angle type) of the LED light source 39 is not an essential requirement. This is because the X-shaped intersection angle between the two substrates (the first substrate 33 and the second substrate 34) may be set appropriately in accordance with the radiation angle of the LED light source 39 to be used. Therefore, the LED light source 39 used in the present invention may be of a wide angle type.
  • the two substrates intersect with each other in an X shape, but the present invention is not limited to this.
  • the substrates may be crossed in a V shape or Y shape, or any or all of X shape, V shape, Y shape are mixed. An aspect may be sufficient.
  • one LED light source 39 is attached to each of the protruding portions 33b of the two substrates (the first substrate 33 and the second substrate 34).
  • a plurality of LED light sources 39 may be attached to each portion 33b.
  • the number of LED light sources 39 to be attached may be appropriately determined according to the required light amount.
  • the lower ends of the two substrates (hereinafter referred to as the first substrate 33 and the second substrate 34) are engaged with the inner groove 32a of the base member 32 and held. Is not limited to this example. In short, it is sufficient that two substrates (hereinafter, the first substrate 33 and the second substrate 34) are firmly held by the base member 32 (shape, etc.).
  • Illumination device 33 First substrate 33b Protruding part (comb teeth) 34 2nd board

Abstract

L'invention porte sur un appareil d'éclairage, qui peut produire un éclairage uniforme, tout en supprimant une génération de non-uniformité de luminance dans le cas de l'utilisation d'une source de lumière à diodes électroluminescentes à angle étroit. Un appareil d'éclairage (31) pouvant être appliqué à un panneau éclairé intérieurement (40) est configuré par le fait qu'il comprend une première plaque (33) et une deuxième plaque (34) disposées en diagonale par rapport à la surface inférieure du panneau éclairé intérieurement (40), par la mise en forme de la première plaque (33) et de la deuxième plaque (34) sous une forme de peigne, par la combinaison de dents de peigne (33b, 34b) de la première plaque (33) et de la deuxième plaque (34) par réalisation d'un croisement mutuel en alternance des dents de peigne, et par la disposition de sources de lumière à diodes électroluminescentes (39) sur les surfaces en vis-à-vis des dents de peigne (33b, 34b) de la première plaque (33) et de la troisième plaque (34), respectivement.
PCT/JP2009/004594 2009-09-15 2009-09-15 Appareil d'éclairage WO2011033551A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/004594 WO2011033551A1 (fr) 2009-09-15 2009-09-15 Appareil d'éclairage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/004594 WO2011033551A1 (fr) 2009-09-15 2009-09-15 Appareil d'éclairage

Publications (1)

Publication Number Publication Date
WO2011033551A1 true WO2011033551A1 (fr) 2011-03-24

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PCT/JP2009/004594 WO2011033551A1 (fr) 2009-09-15 2009-09-15 Appareil d'éclairage

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WO (1) WO2011033551A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013247371A (ja) * 2012-05-29 2013-12-09 ▲さん▼圓光電股▲ふん▼有限公司 発光素子、発光装置及び装置用ベース
US8845131B2 (en) 2008-12-12 2014-09-30 The Sloan Company, Inc. Angled light box lighting system
WO2014138295A3 (fr) * 2013-03-06 2014-11-13 The Sloan Company, Inc. Dba Sloanled Système d'éclairage à boîte de lumière en angle
US9200788B2 (en) 2008-12-12 2015-12-01 The Sloan Company, Inc. Angled light box lighting system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3002375U (ja) * 1994-03-25 1994-09-20 キムラ電機株式会社 Ｌｅｄ面照光装置
JP2008277174A (ja) * 2007-04-27 2008-11-13 Litehouse Technologies Corp 発光装置及び装着用フレーム
JP2009123709A (ja) * 2003-03-31 2009-06-04 Sharp Corp 面照明装置及びそれを用いた液晶表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3002375U (ja) * 1994-03-25 1994-09-20 キムラ電機株式会社 Ｌｅｄ面照光装置
JP2009123709A (ja) * 2003-03-31 2009-06-04 Sharp Corp 面照明装置及びそれを用いた液晶表示装置
JP2008277174A (ja) * 2007-04-27 2008-11-13 Litehouse Technologies Corp 発光装置及び装着用フレーム

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8845131B2 (en) 2008-12-12 2014-09-30 The Sloan Company, Inc. Angled light box lighting system
US9200788B2 (en) 2008-12-12 2015-12-01 The Sloan Company, Inc. Angled light box lighting system
JP2013247371A (ja) * 2012-05-29 2013-12-09 ▲さん▼圓光電股▲ふん▼有限公司 発光素子、発光装置及び装置用ベース
WO2014138295A3 (fr) * 2013-03-06 2014-11-13 The Sloan Company, Inc. Dba Sloanled Système d'éclairage à boîte de lumière en angle

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