JP2011023310A - Led lighting lamp - Google Patents
Led lighting lamp Download PDFInfo
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- JP2011023310A JP2011023310A JP2009169699A JP2009169699A JP2011023310A JP 2011023310 A JP2011023310 A JP 2011023310A JP 2009169699 A JP2009169699 A JP 2009169699A JP 2009169699 A JP2009169699 A JP 2009169699A JP 2011023310 A JP2011023310 A JP 2011023310A
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- main body
- wiring board
- mounting grooves
- translucent cover
- led
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- 239000000758 substrate Substances 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
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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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
- F21V19/0045—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by tongue and groove connections, e.g. dovetail interlocking means fixed by sliding
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- 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
- F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
-
- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
- F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
-
- 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
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- 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
- F21Y2113/00—Combination of light sources
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
【課題】所要部品点数が少なく、組み立ても容易で、製造コストを軽減できるとともに、据付場所の状況に応じてLED素子の照射方向を設定でき、その照射方向が振動等により無用に変わってしまうおそれがなく、かつまた放熱性もよいLED照明灯を提供する。
【解決手段】アルミニウムを押出成形することにより成形された一定長の等断面の本体10と、LED素子42が実装された配線基板41と、透光性カバー体50と、端部蓋体60とを備え、本体10の前面に設けられた基板収容部18の相対する壁内面に該本体の長手方向に延びた取付溝19,21,22を形成し、かつその少なくとも片側の壁内面には取付溝を複数条形成し、配線基板41を取付溝21,22のうちのいずれかに入れてスライドさせ装着することで該配線基板の向きを変更し得るようにする。
【選択図】図4[PROBLEMS] To reduce the number of required parts, facilitate assembly, reduce the manufacturing cost, and set the irradiation direction of the LED element according to the situation of the installation location, and the irradiation direction may change unnecessarily due to vibration or the like. There is provided an LED illuminating lamp which has no heat dissipation and good heat dissipation.
A body 10 having a constant length and formed by extruding aluminum, a wiring board 41 on which an LED element 42 is mounted, a translucent cover body 50, an end lid body 60, and the like. And mounting grooves 19, 21, 22 extending in the longitudinal direction of the main body are formed on the opposing wall inner surface of the substrate housing portion 18 provided on the front surface of the main body 10, and the mounting grooves 19, 21, 22 are attached to at least one of the wall inner surfaces. A plurality of grooves are formed, and the wiring board 41 is inserted into one of the mounting grooves 21 and 22 and slid and mounted so that the orientation of the wiring board can be changed.
[Selection] Figure 4
Description
本発明は、光源として多数個のLED(発光ダイオード)素子を使用したLED照明灯に関し、さらに詳しくはその照射方向を調整可能にすると共に組立を容易にした構造に関するものである。 The present invention relates to an LED illuminating lamp using a plurality of LED (light emitting diode) elements as a light source, and more particularly to a structure that allows adjustment of the irradiation direction and facilitates assembly.
一般にLED素子は、消費電力が少なく寿命も長いことから、蛍光灯に代わって街路灯として使用することのメリットは大きいと云えるが、街路灯としての明るさを得るためには多数個のLED素子を設ける必要があり、そのために従来では、図6に示したように、取付基板aを適宜角度の折板状に形成し、複数個のLED素子bが実装された配線基板cを該取付基板aの前面にスペーサdを介してビスeにより固着する構造が採られていた。 In general, LED elements consume less power and have a long life, so it can be said that the advantage of using as a street light instead of a fluorescent lamp is great, but in order to obtain the brightness as a street light, a large number of LEDs are used. Therefore, conventionally, as shown in FIG. 6, the mounting substrate a is formed in a folded plate shape with an appropriate angle, and the wiring substrate c on which a plurality of LED elements b are mounted is attached. A structure is adopted in which the front surface of the substrate a is fixed by screws e via spacers d.
また、下記特許文献1は、複数個のLED素子を可撓性の基板に所定間隔で取付けることにより、該LED素子を任意の形状に配置できるようにした照明装置を開示するものである。
また、下記特許文献2は、LED素子が取り付けられた取付板の両側縁にジョイント部が一体に形成され、複数枚の取付板の隣り合うものどうしを該ジョイント部によって屈折可能に連結することにより、所期の屈折状態にして該取付板をハウジング内に固定し得るようにしたLED照明灯を開示するものである。
Patent Document 1 below discloses a lighting device in which a plurality of LED elements are attached to a flexible substrate at predetermined intervals so that the LED elements can be arranged in an arbitrary shape.
Further, in Patent Document 2 below, joint portions are integrally formed on both side edges of a mounting plate to which an LED element is mounted, and adjacent ones of a plurality of mounting plates are connected to be able to be refracted by the joint portion. The LED illumination lamp is disclosed in which the mounting plate can be fixed in the housing in an intended refractive state.
ところで、上記図6に示した構造では、配線基板cの取付,組立に手間が掛かるという問題があると共に、取付基板aは容易には変形できないので、例えば街路灯設置現場の状況に合わせて個々の配線基板cのLED素子bの照射方向を微調整するようなことができないものであった。また、LED素子b等の発熱により配線基板cが高温度になることがあるが、上記構造では該配線基板cが取付基板aから離間しているので、配線基板cの放熱が効率的になされないという問題があった。
また、特許文献1に示された可撓性の基板では、取付後にもLED素子が振動等により無用に動いてしまうおそれがある。
また、特許文献2に示されたLED照明灯は、取付板をハウジング内に固定する構造であるので、ハウジング内に熱がこもるという問題があるほか、ハウジングと取付板とを夫々成形することを要するため部品点数が多くなり組立にも手間を要するので製造コストが掛かるという問題がある。
本発明はこのような課題を解決しようとするものである。
Incidentally, in the structure shown in FIG. 6, there is a problem that it takes time to mount and assemble the wiring board c, and the mounting board a cannot be easily deformed. The irradiation direction of the LED element b of the wiring board c cannot be finely adjusted. Moreover, although the wiring board c may become high temperature due to heat generation of the LED element b or the like, in the above structure, the wiring board c is separated from the mounting board a, so that the heat radiation of the wiring board c is efficient. There was a problem of not being.
Moreover, in the flexible board | substrate shown by patent document 1, there exists a possibility that an LED element may move uselessly by vibration etc. after attachment.
Moreover, since the LED illuminating lamp shown in Patent Document 2 has a structure in which the mounting plate is fixed in the housing, there is a problem that heat is trapped in the housing, and the housing and the mounting plate are molded respectively. As a result, the number of parts is increased, and it takes time to assemble.
The present invention is intended to solve such problems.
そのために本発明に係るLED照明灯は、アルミニウムを押出成形することにより成形された一定長の等断面の本体と、LED素子が実装された配線基板と、透光性の合成樹脂により成形された前記本体と同じ長さの透光性カバー体と、端部蓋体とを備え、前記本体の前面に設けられた基板収容部の相対する壁内面に該本体の長手方向に延びた取付溝をそれぞれ形成し、かつその少なくとも片側の壁内面にはその取付溝を複数条形成し、前記配線基板を該複数条の取付溝のうちのいずれかに入れてスライドさせ装着することで該配線基板の向きを変更し得るようにすると共に、該本体の両側縁部に前記透光性カバー体の両側縁を止着して該透光性カバー体により該本体の前面を覆い、該本体および該透光性カバー体の両端部に前記端部蓋体を被着してなることを特徴とする。 Therefore, the LED lighting lamp according to the present invention is formed by a constant-length body having a constant length formed by extruding aluminum, a wiring board on which the LED elements are mounted, and a translucent synthetic resin. A translucent cover body having the same length as the main body and an end lid body, and a mounting groove extending in the longitudinal direction of the main body is formed on the opposing wall inner surface of the substrate housing portion provided on the front surface of the main body. A plurality of mounting grooves are formed on the inner wall surface of at least one side of each, and the wiring board is inserted into one of the plurality of mounting grooves and slid to be mounted. The direction can be changed, and both side edges of the translucent cover body are fastened to both side edges of the main body, and the front surface of the main body is covered with the translucent cover body. The end cover is attached to both ends of the light cover body. Characterized in that it is formed by wearing.
本発明のLED照明灯は、所要部品点数が少なく、組み立ても容易であるので、製造コストを大幅に軽減できると共に、据付場所の状況に応じてLED素子の照射方向を設定でき、照射方向が振動等により無用に変わってしまうおそれがなく、さらには放熱性もよい。 Since the LED lighting of the present invention requires a small number of parts and is easy to assemble, the manufacturing cost can be greatly reduced, and the irradiation direction of the LED element can be set according to the situation of the installation place, and the irradiation direction vibrates. There is no risk of unnecessarily changing due to, for example, good heat dissipation.
次に本発明の実施形態を説明する。図において、10はアルミニウムを押出成形することにより成形された一定長の等断面の本体で、該本体10は、図4に示されるように、建物の天井や壁に取り付けられるように背面壁11が平面状に形成され、該背面壁11から前方に双璧状に壁部12,12を形成することにより基板収容部13を形成し、該基板収容部の相対する壁内面に該本体の長手方向に延びる一対の取付溝14,14と一対の取付溝15,15を形成している。また、本体10の横断面が略逆台形状となるように該壁部12,12の外方に三角形状の張出部16,16を一体に形成し、該張出部の先端に壁部12,12の外側面と相対する壁部17,17を形成することにより基板収容部18,18を形成し、壁部12,12の外側面に該本体の長手方向に延びる取付溝19,19を形成し、該取付溝19,19と相対する壁部17,17の内面に該本体の長手方向に延びる取付溝21,21を形成し、該取付溝21,21と隣り合うように壁部17,17の内面に取付溝22,22を形成してなる。また、該壁部17,17の外側には縁壁23,23を形成することにより蟻溝24,24を形成してなる。なお、25,25は壁部12,12の先端縁に形成された切欠円形状のビス止用溝、26,26は背面壁11に形成された切欠円形状のビス止用溝、27,27,28,28は縁壁23,23の外側面に形成された切欠円形状のビス止用溝である。
Next, an embodiment of the present invention will be described. In the figure,
30はLED素子の点灯を制御するプリント基板からなる配線基板で、該配線基板の両側縁を取付溝14,14中にスライドさせることにより、該配線基板30を基板収容部13の奥部に収容している。なお、31は該配線基板と前記背面壁11とを接触させることにより該配線基板30の熱を背面壁11に熱伝導するために設けられた放熱板である。
また、40,41,41は前面に多数のLED素子42が実装された長方形状のプリント基板からなる配線基板である。配線基板40は、両側縁を取付溝15,15中に入れてスライドさせることにより、基板収容部13の前面部に装着される。一方、配線基板41,41は、片側の側縁を取付溝19,19中に入れ、他側の側縁を取付溝21,21又は取付溝22,22に入れてスライドさせることにより、基板収容部18,18に装着する。なお、取付溝21,21と取付溝22,22とは壁部17,17の内面に隣り合うように形成されているので、そのいずれにも入れることができるが、図4に破断線で示したように、取付溝21,21に入れるか取付溝22,22に入れるかによって、該配線基板41,41の向きが変えられる。このため、LED素子42の照射方向を据付場所の要請に応じて常に適切に設定することができる。
50はポリカーボネイト等の透光性の合成樹脂により横断面ドーム形に成形された本体10と同じ長さの透光性カバー体で、該カバー体の両側縁に一体に係合縁51,51が形成され、該係合縁を前記蟻溝24,24に挿入することにより、本体10の前面が該透光性カバー体により覆われる。そして、本体10および該透光性カバー体50の両端部に端部蓋体60,60を被着し、該端部蓋体の外側からビス61〜64を前記ビス止用溝25,25,26,26,27,27,28,28に螺入することにより該端部蓋体を止着する。
このように本発明に係るLED照明灯は、アルミニウムの押出成形品である本体と、LED素子の配線基板と、本体の前面を覆う透光性カバー体と、本体および透光性カバー体の両端部に被着される端部蓋体とから構成され、部品点数が少ないために、成形,組立が容易であり、従来のLED照明灯に比して製造コストを大幅に軽減することができる。また、本体に形成した取付溝によって配線基板が支持されるようにしたので、振動等によりLED素子の照射方向が無用に変わってしまうようなおそれがないと共に、取付溝を複数条形成したことでLED素子の照射方向を据付場所の必要に応じて調整可能になる。さらに、配線基板が本体に直接支持されていると共に、該本体はハウジングを兼ねていて該本体の背面壁が建物の天井や壁に取り付けられるようにしたことから、配線基板の熱が熱伝導性の高いアルミニウムを介して外部に伝達され易く放熱が容易になるので、LED素子等の劣化の原因となる過熱が防止される。 Thus, the LED illuminating lamp according to the present invention includes a main body that is an extruded product of aluminum, a wiring board for the LED element, a translucent cover body that covers the front surface of the main body, and both ends of the main body and the translucent cover body. Since it is composed of an end cover attached to the part and has a small number of parts, it is easy to mold and assemble, and the manufacturing cost can be greatly reduced as compared with a conventional LED lighting. In addition, since the wiring board is supported by the mounting groove formed in the main body, there is no possibility that the irradiation direction of the LED element is unnecessarily changed due to vibration or the like, and a plurality of mounting grooves are formed. The irradiation direction of the LED element can be adjusted according to the installation location. Furthermore, the wiring board is directly supported by the main body, and the main body also serves as a housing so that the back wall of the main body can be attached to the ceiling or wall of the building. Since it is easily transmitted to the outside through high-aluminum aluminum and heat dissipation is facilitated, overheating that causes deterioration of the LED elements and the like is prevented.
なお、図5は本発明の他の実施形態を示したLED照明灯の断面拡大図である。この実施形態に示した本体10は、下面が開口した横断面箱状に形成され、該開口に板状の透光性カバー体50が装着されるようにすると共に、該本体10内に形成した垂下部12,12の相対する内面に取付溝15,15を形成し、該取付溝15,15に両側縁を装入することにより配線基板40を該本体10内中央に水平に配設する一方、該垂下部12,12の外側対称位置に取付溝19,19を形成し、該取付溝19,19と相対する本体内面に取付溝21,21および該取付溝21,21と隣り合う取付溝22,22を形成し、一対の配線基板41,41の片側の側縁が取付溝19,19中に装入され、該各配線基板41,41の他側の側縁が取付溝21,21又は取付溝22,22に装入されるようにしたもので、このように配線基板40の両側に一対の配線基板41,41を内向きに設けることも可能である。
FIG. 5 is an enlarged cross-sectional view of an LED illuminating lamp showing another embodiment of the present invention. The
本発明に係るLED照明灯は、室内灯,街路灯として、或いは、駅ホーム,地下街などの照明に広く利用することができる。 The LED illuminating lamp according to the present invention can be widely used as an indoor lamp, a street lamp, or for illumination of a station platform, an underground mall, and the like.
10 本体
11 背面壁
12 壁部
13 基板収容部
14,15 取付溝
16 張出部
17 壁部
18 基板収容部
19,21,22 取付溝
23 縁壁
24 蟻溝
30,40,41 配線基板
42 LED素子
50 透光性カバー体
51 係合縁
60 端部蓋体
DESCRIPTION OF
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009169699A JP2011023310A (en) | 2009-07-21 | 2009-07-21 | Led lighting lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009169699A JP2011023310A (en) | 2009-07-21 | 2009-07-21 | Led lighting lamp |
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| JP2011023310A true JP2011023310A (en) | 2011-02-03 |
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| JP (1) | JP2011023310A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012003993A (en) * | 2010-06-17 | 2012-01-05 | Toshiba Lighting & Technology Corp | Lighting fixture |
| JP2017010676A (en) * | 2015-06-18 | 2017-01-12 | アイリスオーヤマ株式会社 | LED lighting device |
| WO2017154906A1 (en) * | 2016-03-07 | 2017-09-14 | アイリスオーヤマ株式会社 | Light-emitting unit and illumination device |
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| JP2002124104A (en) * | 2000-08-22 | 2002-04-26 | Koninkl Philips Electronics Nv | lighting equipment |
| JP3145640U (en) * | 2008-08-01 | 2008-10-16 | 佐野 明宏 | Light emitting device |
| WO2008137618A1 (en) * | 2007-05-07 | 2008-11-13 | Koninklijke Philips Electronics N V | Led-based lighting fixtures for surface illumination with improved heat dissipation and manufacturability |
| JP3148527U (en) * | 2008-11-10 | 2009-02-19 | 珍通能源技術股▲ふん▼有限公司 | Light-emitting diode lamp tube with multistage adjustment of circuit board position |
| JP3151501U (en) * | 2008-12-22 | 2009-06-25 | 馨意科技股▲分▼有限公司 | Structure of light-emitting diode lamp tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002124104A (en) * | 2000-08-22 | 2002-04-26 | Koninkl Philips Electronics Nv | lighting equipment |
| WO2008137618A1 (en) * | 2007-05-07 | 2008-11-13 | Koninklijke Philips Electronics N V | Led-based lighting fixtures for surface illumination with improved heat dissipation and manufacturability |
| JP3145640U (en) * | 2008-08-01 | 2008-10-16 | 佐野 明宏 | Light emitting device |
| JP3148527U (en) * | 2008-11-10 | 2009-02-19 | 珍通能源技術股▲ふん▼有限公司 | Light-emitting diode lamp tube with multistage adjustment of circuit board position |
| JP3151501U (en) * | 2008-12-22 | 2009-06-25 | 馨意科技股▲分▼有限公司 | Structure of light-emitting diode lamp tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012003993A (en) * | 2010-06-17 | 2012-01-05 | Toshiba Lighting & Technology Corp | Lighting fixture |
| JP2017010676A (en) * | 2015-06-18 | 2017-01-12 | アイリスオーヤマ株式会社 | LED lighting device |
| WO2017154906A1 (en) * | 2016-03-07 | 2017-09-14 | アイリスオーヤマ株式会社 | Light-emitting unit and illumination device |
| JPWO2017154906A1 (en) * | 2016-03-07 | 2019-01-31 | アイリスオーヤマ株式会社 | Light emitting unit and lighting device |
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