JP6011943B2 - 発光装置、及びその発光装置用合成樹脂グローブの製造方法 - Google Patents
発光装置、及びその発光装置用合成樹脂グローブの製造方法 Download PDFInfo
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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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
-
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/506—Cooling arrangements characterised by the adaptation for cooling of specific components of globes, bowls or 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- 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
- F21V3/049—Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
-
- 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
- F21V3/061—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being glass
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/007—Using fluid under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/747—Lightning equipment
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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
- F21K9/60—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
- 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
- F21K9/90—Methods of manufacture
-
- 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
- F21V13/02—Combinations of only two kinds of 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
本発明の実施例によるグローブ6の断面形状を図1Aに示す。グローブ6の材料には、拡散材料を含有した合成樹脂材料(ポリメチルメタアクリレート、ポリスチレン、ABS,AS,ポリアセタール、ポリエチレン、ポリカーボネート、ポリエステル、ポリプロピレン、塩化ビニルなど)を使用している。下記の成形でも同じ樹脂を使用している。上記拡散材料の含有量は、グローブ6での光の透過率を90%以上に確保できる程度に抑えている。図1Aにおいて、グローブ6内壁の下方部には凹凸部13が形成されており、凹凸部13に入射した光17は凹凸部13で屈折してグローブ6から拡散し、光18として放射される。凹凸部13は、ランダムな半球面形状でも良く、また、リング状のフレネルレンズ形状でも良い。凹凸部13がグローブ6の内壁に設けられている理由は、グローブ6の外周に凹凸部13を設けた場合には、照明装置として外観に問題があり、ゴミや埃がつきやすいからである。
次に、本発明の実施例による製造方法を説明する。まず、本発明の実施例では、図3(a)に示す中間品8を射出成形法により成形する。中間品8の高さ寸法は、図3(b)で示すブロー成形後に形成されるグローブ6の高さ寸法よりも△hだけ高くしている。△hの寸法を大きくすることにより、ブロー成形によって膨張する中間品(パリソン)8の量を少なくして、厚みの変化量を少なくすることができる。
ここで、中間品8は、全体の大きさが、60〜70mmの直径の球体であり、Δhは、約1割の7mm程度必要である。
中間品8は、図3(a)で示したように、射出成形により内壁の下方部に凹凸部13が予め形成されている。図4(a)から図4(d)を用いて、射出成形金型の構成と射出成形のプロセスを間単に説明する。
本発明の実施例における加熱具の構成を図5(a)から図5(c)に示す。図示しない架台に固定されたプリヒートベース301にはヒータ303及び温度センサー304が設けられており、プリヒートベース301の温度は、樹脂材料の荷重たわみ温度より高い一定の温度に制御されている(ポリカーボネート樹脂材料の場合、180℃〜230℃)。プリヒートベース301にはパリソンホルダー302が固定されており、パリソンホルダー302は、プリヒートベース301からの熱伝導で樹脂材料の荷重たわみ温度より高い温度に保持されている(ポリカーボネート樹脂材料の場合、150℃〜200℃)。ここで、パリソンホルダー302と中間品(パリソン)8との隙間は0.1mm〜0.5mmと近距離に設定され、パリソンホルダー302表面には撥水性の高いセラミックコーティングを施している。
軟化した中間品8をブロー成形型に搬送した後のプロセスに関しては、図6と図7を用いて説明する。
2 基台
4 ヒートシンク
5 金具
6 グローブ
8 中間品
9 ホルダー部
10 ブロー成形型
12 切断面
13 凹凸部
14〜18 光
21 半導体発光素子
31 第1反射板
32 第2反射板
61 光線通過部
62 ヒートシンクへの挿入部
71、72、73 光
81 通過部
82 押さえ代
101 金型ベース
102 固定側型板
103 可動側型板
104 スプリングガイド
105 スプリング
106 くさびガイド
107 くさび
108 ホルダー
109 シャフト
110 圧縮空気供給口
111 圧縮空気排出口
201 スプルーブッシュ
202 スプルー部
203 固定側取付板
204 ランナーストリッパープレート
205 ストップボルト
206 プラーボルト
207 サポートピン
208 ランナー部
209 ランナーゲート
210 外周形状
211 固定側型板
212 引張りリンク
213 中子
214 ストリッパープレート
215 エジェクトピン
216 可動側型板
217 エジェクトプレート
218 エジェクトロッド
219 空隙部
210 スプルーランナー
301 プリヒートベース
302 パリソンホルダー
303 ヒータ
304 温度センサー
305 プリヒートブロック
306 バンドヒータ
307 温度センサー
311 窓部
401 合成樹脂シート
402 分割金型
403 クランプ
404 プラグ
405 開口部
406 通気孔
407 通路
408 型面
409 成形品
410 密着した合成樹脂シート
501 リング型
502 溶融ガラス
503 成形ガラス
504 凹所
505 予備金型
506 突出部
507 本金型
Claims (13)
- 半導体発光素子を実装した基台と、
前記半導体発光素子から発生した光を前記半導体発光素子の上方にて反射する反射板と、
前記基台と前記半導体発光素子と前記反射板とを覆うグローブと、を備える発光装置であって、
前記グローブ内壁において、前記反射板より下方部のみに凹凸形状を設け、
前記反射板は、第1反射板と、前記第1反射板と別体である第2反射板とを備え、それぞれの反射板にて、前記半導体発光素子から前記光を直接受け反射して、前記光を異なる方向へ変える発光装置。 - 前記第1反射板は、前記光を下方向に方向を変え、
前記第2反射板は、前記光を横方向に方向を変える請求項1記載の発光装置。 - 前記第1反射板は、窓部を有し、前記窓部を通過した前記光は、前記第2反射板で反射する請求項2記載の発光装置。
- 前記第1反射板は、窓部を有し、前記窓部を通過した前記光は、前記グローブへ導かれる請求項2または3記載の発光装置。
- 前記グローブ内壁において、前記第1反射板で反射して下方向に方向を変えた光が入射する範囲のみに凹凸形状を設けた請求項2〜4のいずれか1項に記載の発光装置。
- 前記凹凸形状は、第1凹凸と、前記第1凹凸上に設けられた第2凹凸とを備え、
前記第2凹凸は、前記第1凹凸より小さく、1つの前記第1凹凸上に複数の前記第2凹凸が位置する請求項1から5のいずれか1項に記載の発光装置。 - 前記第1凹凸および前記第2凹凸は、球面形状である請求項6記載の発光装置。
- 前記凹凸形状の厚みは、前記グローブ内壁から0.1mm以下である請求項1記載の発光装置。
- 前記第2凹凸の厚みは、前記第1凹凸面から、0.15mm以下である請求項6から8のいずれか1項に記載の発光装置。
- 前記基台の下部に配置される部分と前記グローブの下部に位置する部分とで構成される
ヒートシンクをさらに有し、
前記ヒートシンクに組み合わされる前記グローブの外壁面に段差を設け、
前記段差の厚みが前記グローブの厚みより薄くした請求項1〜9のいずれか1項に記載の発光装置。 - 前記段差は、前記グローブの光通過部と、前記グローブのヒートシンクへの挿入部との間に設けられた請求項10記載の発光装置。
- 前記段差の下部の厚みが、前記段差の上部の厚みの3分の2より薄い請求項10記載の発光装置。
- 前記段差の下部の厚みが0.4mm以上である請求項10に記載の発光装置。
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US9383074B2 (en) | 2016-07-05 |
EP2687772B1 (en) | 2017-05-03 |
WO2012124351A1 (ja) | 2012-09-20 |
EP2687772A1 (en) | 2014-01-22 |
JPWO2012124351A1 (ja) | 2014-07-17 |
EP2687772A4 (en) | 2014-06-25 |
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