JP2017084727A - 照明モジュールおよび照明装置 - Google Patents
照明モジュールおよび照明装置 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- 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
- F21V23/005—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 is supporting also 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
- F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
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- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
- F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
- F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
- F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
- F21Y2105/18—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21Y2113/10—Combination of light sources of different colours
- F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
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- Microelectronics & Electronic Packaging (AREA)
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- Optics & Photonics (AREA)
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Abstract
Description
図1は、本実施形態の照明モジュールおよび照明装置の一例を示す分解斜視図である。照明装置11は、筐体21と、照明モジュール22と、制御回路23と、カバー24とを備える。制御回路23には外部の交流電源または直流電源から電力の供給を受ける配線が接続される。また、制御回路23と照明モジュール22との間も配線によって電気的に接続されている。
図2は、照明モジュール22の平面図を示す。照明モジュール22は、基板30と、基板30に配置された複数種の光源26を含む。光源26は複数の第1光源31および複数の第2光源32を含む。照明モジュール22において、第2光源32の数は、第1光源31の数よりも少ない。夜間に求められる室内の明るさ、つまり照度は、昼間に求められる照度よりも小さいからである。例えば、第2光源32の数は、第1光源31の数の4/5以下である。
本実施形態では、第1光源31および第2光源32が出射する光の波長帯域または相関色温度が互いに異なっている。第1光源31および第2光源32が異なった波長帯域または相関色温度の光を出射するため、第1光源31および第2光源32の点灯を切り替えたり、第1光源31および第2光源32へ供給する電力を調節したりすることによって、照明装置11から出射する光の色合いを調節、つまり、調色を行うことができる。
0.7≦OD/P1≦2.0
0.2≦OD/P2≦0.8 ・・・・(1)
の関係を満たしている。これらの関係を満たすことによって、上述したように、第1および第2光源31、32の点灯時において、照明装置11を見たときのカバー24における輝度のばらつきをより確実に抑制することができる。
照明モジュール22は例えば、以下の方法によって製造され得る。まず、第1および第2光源31、32の配置に応じたパターンの導体配線36を備えた基板30を用意する。次に、第1および第2発光素子41、42を基板30に接合する。例えば、フリップチップ接合によって、第1および第2発光素子41、42を基板30に実装する。
本発明の照明装置および照明モジュールは上記実施形態に限られず、種々の変形が可能である。
実施形態の照明装置の効果を確認するために、シミュレーションを行い評価した。具体的には、図2に示す通りに第1および第2光源31、32を配置した場合のカバーにおける輝度ムラを評価した。図2におけるピッチP1およびP2をそれぞれ、25mmおよび50mmに設定した。また、図7に示す基板30とカバー24との距離である光学距離ODを25mmに設定した。OD/P1=1であり、OD/P2=0.5である。これらの値は、不等式(1)の概ね中央値である。
21 筐体
21a〜21d側部
21e底部
22、22’、22’’ 照明モジュール
23 制御回路
23a電源回路
23b受信回路
24 カバー
25 リモコン
26 光源
27 反射板
27a反射面
27h孔
30 基板
31 第1光源
32 第2光源
35 基体
36 導体配線
37 絶縁部材
38 接続部材
41 第1発光素子
41a、42a出射面
42 第2発光素子
51 第1被覆部材
52 第2被覆部材
60 光源
61 波長変換部材
62 被覆部材
62h貫通孔
62p峰部
70 光源
72 被覆部材
72r凹部
81 光源
82 基板
83 発光素子
84 リフレクタ
84a反射面
85 被覆部材
85a上面
Claims (13)
- 基板と、
前記基板上に配置された複数の第1光源と、
前記基板上に配置された少なくとも1つの第2光源と、
を備え、
前記第1光源と前記第2光源とで、波長帯域または相関色温度が異なっており、
前記第1光源の数は、前記第2光源の数よりも多く、
前記第2光源の配光角は前記第1光源の配光角より大きい、
照明モジュール。 - 前記少なくとも1つの第2光源の数は2以上であり、前記複数の第1光源と前記少なくとも1つの第2光源とは混合して前記基板上に配列されている、請求項1に記載の照明モジュール。
- 前記複数の第1光源および前記少なくとも1つの第2光源は1次元または2次元に配置されている請求項1または2に記載の照明モジュール。
- 前記第1光源および前記第2光源はそれぞれ白色光を出射し、前記第2光源の相関色温度は、前記第1光源の相関色温度よりも低い、請求項1から3のいずれかに記載の照明モジュール。
- 前記第1光源は白色光を出射し、
前記第2光源は単色光を出射する、請求項1から3のいずれかに記載の照明モジュール。 - 前記第1光源および前記第2光源は単色光を出射し、
前記第1光源および前記第2光源の波長帯域は互いに異なる、請求項1から3のいずれかに記載の照明モジュール。 - 前記第1光源は、ランバート型またはこれに準ずる配光特性を有する請求項1から6のいずれかに記載の照明モジュール。
- 前記第2光源は、バットウイング型の配光特性を有する請求項1から7のいずれかに記載の照明モジュール。
- 前記第1光源および前記第2光源のそれぞれは、出射面と、前記出射面を覆う被覆部材とを含む請求項1から8のいずれかに記載の照明モジュール。
- 前記第1光源および前記第2光源のそれぞれは、前記基板に接合され、前記出射面を有するLEDを含み、
前記被覆部材は、前記LEDを覆って前記基板上に配置されている請求項9に記載の照明モジュール。 - 前記基板はフレキシブル基板である請求項1から10のいずれかに記載の照明モジュール。
- 請求項2から11のいずれかに記載の照明モジュールと
拡散板と
を備え、
前記基板の前記複数の第1光源および前記少なくとも1つの第2光源は、前記拡散板と前記基板との間に位置している、照明装置。 - 前記基板上における前記複数の第1光源の配列ピッチP1および前記基板上における前記少なくとも1つの第2光源の配列ピッチP2は、前記拡散板と前記基板との間隔ODを用いて、以下の関係
0.7≦OD/P1≦2.0
0.2≦OD/P2≦0.8
を満たしている、請求項12に記載の照明装置。
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