JPS6333878A - Light-emitting diode structure - Google Patents
Light-emitting diode structureInfo
- Publication number
- JPS6333878A JPS6333878A JP61177434A JP17743486A JPS6333878A JP S6333878 A JPS6333878 A JP S6333878A JP 61177434 A JP61177434 A JP 61177434A JP 17743486 A JP17743486 A JP 17743486A JP S6333878 A JPS6333878 A JP S6333878A
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting diode
- light emitting
- convex lens
- diode structure
- 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.)
- Granted
Links
- 229920000620 organic polymer Polymers 0.000 claims description 18
- 239000000758 substrate Substances 0.000 description 10
- 239000004593 Epoxy Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000036626 alertness Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- 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
- F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective 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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- 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]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、種々の照明燈などに使用する発光ダイオード
構造物に関し、詳細には自動車の照明燈（ヘッドランプ
、フォグランプなど）、信号燈及び標識燈（テールラン
プ、ストップランプ、ターンシグナルランプ、パーキン
グランプなど）のうち、特に自動車用のストップランプ
の発光源として最適な発光ダイオード構造物に関するも
のである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a light emitting diode structure used in various lighting lights, etc., and in particular, it is used in automobile lighting lights (headlamps, fog lamps, etc.), signal lights, and This invention relates to a light emitting diode structure that is particularly suitable as a light source for stop lamps for automobiles among sign lights (tail lamps, stop lamps, turn signal lamps, parking lamps, etc.).
〔従来の技術・発明が解決しようとする問題点〕従来、
この種の特に自動車のストップランプなどの発光源とし
ては、たとえばフィラメントを使用したものがあるが、
フィラメントを使用したランプは消費電力が２〜１０Ａ
と比較的多く、そのため発熱が著しいので断線し易く、
しかもランプ自体が大きくかつ重くなる。このような問
題点を解決するために、市販されている発光ダイオード
を複数個用いて基板上に縦横に整列して取付けた発光ダ
イオード構造物をフィラメントの代わりに発光源として
用いたものがある。これをランプの発光源として用いた
場合は、発光ダイオードがフィラメントよりも低電圧・
低電流で発光するため、消費電力がＩＡ程度以下と非常
に少なく、断線するようなことはないので、半永久的に
使用することができ、加えてランプ自体も軽くかつ小さ
くなる。[Problems to be solved by conventional technology/invention] Conventionally,
This type of light source, especially for automobile stop lamps, uses filaments, for example.
Lamps using filament consume 2-10A of power.
This is relatively common, and as a result, it generates a lot of heat and is easily disconnected.
Moreover, the lamp itself becomes large and heavy. In order to solve these problems, there is a light emitting diode structure in which a plurality of commercially available light emitting diodes are mounted on a substrate in rows and columns and used as a light emitting source instead of a filament. When this is used as a light source for a lamp, the light emitting diode has a lower voltage than the filament.
Since it emits light with a low current, the power consumption is very low, less than about IA, and there is no possibility of wire breakage, so it can be used semi-permanently, and in addition, the lamp itself is lighter and smaller.
しかしながら従来のこの種発光ダイオード構造物は、そ
の発光が散乱して前方に効率良く光を取り出すことがで
きないので発光光度が余り高くなく、そのため通常の表
示燈などに用いる場合には支障はないが、自動車のスト
ップランプ用などとしては不適であった。その理由は、
自動車用ストップランプでは十分な明るさの光（通常は
赤色光）を外部に発散して視覚に対して注意を強力に働
き掛け、確実に視認できるようにする必要があり、その
ため自動車のストップランプに使用するには日本工業規
格（Ｊ Ｉ Ｓ）の自動車用ランプ類（Ｄ５５００）の
光度規準またはアメリカ自動車技術協会（ＳＡＥ）の光
度基準を満足するものでなければならないが、従来の発
光ダイオード構造物はその規準に達するものではない。However, in conventional light-emitting diode structures of this type, the luminous intensity is not very high because the emitted light is scattered and the light cannot be efficiently extracted forward, so there is no problem when using it for ordinary indicator lights, etc. , it was unsuitable for use in automobile stop lamps, etc. The reason is,
Stop lamps for automobiles must emit light of sufficient brightness (usually red light) to the outside to strongly attract visual attention and ensure visibility. In order to be used, it must meet the Japanese Industrial Standards (JIS) luminous intensity standards for automotive lamps (D5500) or the Society of Automotive Engineers of America (SAE) luminous intensity standards, but conventional light emitting diode structures cannot be used. does not meet that standard.
従って本発明の目的は、種々のランプの発光源として最
適な発光ダイオード構造物を提供することにあり、特に
ＪＩＳまたはＳＡＥの所定の光度規準を満たし、自動車
のストップランプとして十分に使用可能な発光ダイオー
ド構造物を提供することにある。Therefore, an object of the present invention is to provide a light emitting diode structure that is optimal as a light emitting source for various lamps, and in particular, to provide a light emitting diode structure that satisfies predetermined luminous intensity standards of JIS or SAE and can be used satisfactorily as a stop lamp for an automobile. An object of the present invention is to provide a diode structure.
本発明の発光ダイオード構造物は、前述した如く特に自
動車のストップランプの発光源に適したものであるが、
ここでいうストップランフ゛は、自動車のりャバンパの
上方の位置に取付けられている通常のストップランプの
みではなく、たとえば車室の内部において後部窓ガラス
を通して自動車の後方から良く見える位置に取付けるス
トップランプをも包含するものであり、このストップラ
ンプは通常のストップランプよりも高い位置に取付ける
ということからハイマウント・ストップランプと呼称さ
れている。As mentioned above, the light emitting diode structure of the present invention is particularly suitable as a light source for a stop lamp of an automobile.
The term stop lamp here refers not only to a normal stop lamp installed above the rear bumper of a car, but also to a stop lamp installed inside the passenger compartment in a position that is clearly visible from the rear of the car through the rear window glass. This stop lamp is called a high-mount stop lamp because it is installed at a higher position than a normal stop lamp.
前記目的は、透光性の有機高分子にて頂部が凸レンズと
なるようにモールドした発光ダイオードの多数を平面上
に配列してなり、且つ各発光ダイオードは発光光をそれ
ぞれ前方に反射するためのパラボラ反射鏡を有すること
を特徴とする発光ダイオード構造物により達成される。The purpose is to arrange a large number of light emitting diodes molded with a light-transmitting organic polymer so that the top part becomes a convex lens on a plane, and each light emitting diode has a structure for reflecting the emitted light forward. This is achieved by a light emitting diode structure characterized in that it has a parabolic reflector.
発光ダイオードとして透光性の有機高分子にて頂部が凸
レンズとなるようにモールドしたものを用いることによ
り、当該発光ダイオードから前記の配列平面に対して垂
直方向またはそれに近い方向に放出される光は前記凸レ
ンズにより集光されて前方に放出される。一方、発光ダ
イオードから前記の配列平面に対して水平方向または垂
直方向に対して斜めの方向に放出される光は一般に散乱
光となり勝ちであるが、本発明における各発光ダイオー
ドはパラボラ反射鏡を有しており前記の光の少なくとも
一部は当該反射鏡により前方に反射・集光される。した
がって、発光ダイオード１個あたりの前方方向への光量
が従来品のそれと比較して格段に大きくなる。By using a light-emitting diode molded with a transparent organic polymer so that the top becomes a convex lens, the light emitted from the light-emitting diode in a direction perpendicular to or close to the above-mentioned arrangement plane can be The light is collected by the convex lens and emitted forward. On the other hand, light emitted from the light emitting diodes in a direction horizontal to the arrangement plane or oblique to the vertical direction generally tends to become scattered light, but each light emitting diode in the present invention has a parabolic reflecting mirror. At least a portion of the light is reflected and focused forward by the reflecting mirror. Therefore, the amount of light emitted in the forward direction per light emitting diode is significantly larger than that of conventional products.
以下、本発明の発光ダイオード構造物を実施例に基づい
て説明する。Hereinafter, the light emitting diode structure of the present invention will be explained based on Examples.
第１図は、本発明実施例の断面図であって、１は基板、
２は基板１の上に縦横に整列して基盤目状に取付けられ
た多数の有機高分子モールド発光ダイオード、３はパラ
ボラ反射鏡である。FIG. 1 is a cross-sectional view of an embodiment of the present invention, in which 1 is a substrate;
Reference numeral 2 designates a large number of organic polymer molded light emitting diodes which are arranged in rows and columns in a grid pattern on the substrate 1, and reference numeral 3 is a parabolic reflecting mirror.
基板１としては、たとえばガラス、セラミ、り、有機高
分子（エポキシ、ガラスエポキシ等）等からなる１勿が
用いられる。As the substrate 1, a substrate made of, for example, glass, ceramic, resin, organic polymer (epoxy, glass epoxy, etc.) is used.
有機高分子モールド発光ダイオード２の構造につき説明
すると、発光ダイオード２１が金メツキ処理などを施し
た導電性を呈するステム電極２２の中央の凹部に導電性
エポキシ樹脂系接着剤によってダイボンディングされて
いる。さらに発光ダイオード２１は、正電極子のリード
端子２３の上側突出端部と金などのワイヤ２５を用いて
ワイヤポンディングされている。また、ステム電極２２
は負電極−のリード端子２４に接続されている。To explain the structure of the organic polymer molded light emitting diode 2, a light emitting diode 21 is die-bonded with a conductive epoxy resin adhesive to a concave portion at the center of a conductive stem electrode 22 which is plated with gold or the like. Further, the light emitting diode 21 is wire bonded to the upper protruding end of the lead terminal 23 of the positive electrode using a wire 25 made of gold or the like. In addition, the stem electrode 22
is connected to the lead terminal 24 of the negative electrode.
このリード端子２３．２４を有する発光ダイオード２１
は透光性の優れた有機高分子、たとえばクリアエポキシ
にてモールドされたモールド部２６を有し、また当該モ
ールド部２６の頂部は凸レンズ２６１となっている。Light emitting diode 21 with this lead terminal 23, 24
has a molded part 26 molded with an organic polymer with excellent translucency, such as clear epoxy, and the top of the molded part 26 is a convex lens 261.
発光ダイオード２１としては、市販されているもので構
わず、その発光色にも別に特定はなく、たとえば自動車
のストップランプに使用する場合は赤色、ターンシグナ
ルランプの場合は黄色、緑色の信号燈では緑色など、用
途に応じて所望の発光色のものを選択すればよい。しか
して、ＪＩＳ及びＳＡＥの光度規準を満たすと言う観点
から、できるだけ発光輝度の高いものを使用することが
好ましい。その−例として、特に本発明の発光ダイオー
ド構造物を自動車のストップランプに使用する場合にそ
の構造物に用いる発光ダイオードとしては、特願昭６１
−９２８９５号明細君に記載されている発光ダイオード
、すなわち活性層のギヤリア濃度が１０１５〜１０′９
／ｃＪ、好ましくは１０１５〜１０１５／ｃ−で、ダブ
ルヘテロ構造を有するものを使用することが好ましい。The light emitting diode 21 may be any commercially available light emitting diode, and there is no particular restriction on its emitted light color; for example, it may be red when used in a car stop lamp, yellow when used in a turn signal lamp, or yellow when used in a green signal light. A desired luminescent color, such as green, may be selected depending on the application. Therefore, from the viewpoint of meeting the luminous intensity standards of JIS and SAE, it is preferable to use a material with as high luminance as possible. As an example, particularly when the light emitting diode structure of the present invention is used as a stop lamp of an automobile, the light emitting diode used in the structure is disclosed in Japanese Patent Application No. 61
- The light emitting diode described in the specification of No. 92895, that is, the gearia concentration of the active layer is 1015 to 10'9.
/cJ, preferably 1015 to 1015/c-, and preferably has a double heterostructure.
前記明細書に記載の発光ダイオードは、通常の発光ダイ
オードよりも低電圧で高い発光輝度が得られ、低電圧に
より熱の発生量が少なくなると共に、チップにおける発
光輝度の不良が少なく、量産が可能となりコストを低く
することができ、本発明の発光ダイオード構造物に最適
である。The light-emitting diode described in the above specification can obtain higher luminance at a lower voltage than a normal light-emitting diode, generates less heat due to the lower voltage, and has fewer defects in luminance in the chip, and can be mass-produced. Therefore, the cost can be reduced and it is most suitable for the light emitting diode structure of the present invention.
パラボラ反射鏡３としては、発光ダイオード２１からの
発光を反射・集束させて効率良くパラボラ反射鏡の前方
に集束光として放射するものであれば各種構造のものが
特に制限はなく用いられシ。たとえばパラボラ反射鏡自
体が金、銀、アルミニウム、ニッケル、クロム、亜鉛、
錫等の金属を蒸着またはメツキしたガラスや合成樹脂か
らなるもの、あるいは表面を鏡面仕上げしたステンレス
板、アルミニウム板からなるもの等がある。As the parabolic reflecting mirror 3, there are no particular restrictions and any structure may be used as long as it reflects and focuses the light emitted from the light emitting diode 21 and efficiently radiates the focused light in front of the parabolic reflecting mirror. For example, the parabolic reflector itself can be made of gold, silver, aluminum, nickel, chromium, zinc,
Examples include those made of glass or synthetic resin on which metal such as tin is vapor-deposited or plated, or stainless steel plates or aluminum plates with mirror-finished surfaces.
パラボラ反射鏡による発光の集束の度合は当該反射鏡の
深さによって異なり、これを深くすると集束の度合が高
まり、浅くすれば光が一部発散される。したがって本発
明の用途に応じて種々の深さ及び形状を採用すればよい
。たとえば、ハイマウント・ストップランプ用として好
適には、反射２１の深さが一般に２〜３Ｑｍｍ、好まし
くは３〜２３ｍｍ、さらに好ましくは４〜１５１であり
、パラボラ形状の焦点に発光ダイオード２１を配置する
とよい。The degree of convergence of light emitted by a parabolic reflector differs depending on the depth of the reflector; the deeper the reflector, the higher the degree of convergence, and the shallower the reflector, the more the light is partially diverged. Therefore, various depths and shapes may be employed depending on the application of the present invention. For example, preferably for a high-mount stop lamp, the depth of the reflection 21 is generally 2 to 3 Qmm, preferably 3 to 23 mm, and more preferably 4 to 15 mm, and the light emitting diode 21 is arranged at the focal point of a parabolic shape. good.
第２図は、本発明の他の実施例についての断面図であっ
て２段の曲面を有するパラボラ反射鏡３を備えたもので
ある。FIG. 2 is a sectional view of another embodiment of the present invention, which includes a parabolic reflecting mirror 3 having a two-stage curved surface.
同図に示す釣鐘型の有機高分子モールド発光ダイオード
２は、製造が容易であり且つ集光性の良好なモールド構
造の１種であるが、発光ダイオード２１からの光の一部
は、反射並びに屈折を経て図示する通りの経路で進み、
モールド部２６の頂部（すなわち凸レンズ２６１の頂部
）より基板１に対して略平行方向に放出される。このよ
うな光を反射・集光して前面に放出するように本実施例
で用いるパラボラ反射鏡３は、前記したように２段の曲
面、即ち曲面３１と曲面３２とを存しており、上記の光
は曲面３２により反射・集光されて前方方向に放出され
る。The bell-shaped organic polymer molded light-emitting diode 2 shown in the figure is a type of molded structure that is easy to manufacture and has good light-gathering properties, but part of the light from the light-emitting diode 21 is reflected and Proceed through the refraction and follow the path shown in the diagram.
The light is emitted from the top of the mold part 26 (that is, the top of the convex lens 261) in a direction substantially parallel to the substrate 1. The parabolic reflector 3 used in this embodiment to reflect and condense such light and emit it to the front surface has two curved surfaces, that is, the curved surface 31 and the curved surface 32, as described above. The above light is reflected and condensed by the curved surface 32 and emitted in the forward direction.
第２図に示す釣鐘型の有機高分子モールド発光ダイオー
ドに限らず、基板１に対して略平行方向に光が放出され
る場合には、上記した構造のパラボラ反射鏡の採用が望
ましい。Not only the bell-shaped organic polymer molded light emitting diode shown in FIG. 2, but also when light is emitted in a direction substantially parallel to the substrate 1, it is desirable to employ a parabolic reflector having the above structure.
第３図は、本発明の更に他の実施例についての断面図で
あって、有機高分子モールド発光ダイオード２のモール
ド部２６は、凸レンズ２６１、外表面が発光ダイオード
の存在位置を中心として半径ｒの球面を呈する部分２６
２、および残部下位部分２６３とからなっている。FIG. 3 is a cross-sectional view of still another embodiment of the present invention, in which the mold part 26 of the organic polymer molded light emitting diode 2 has a convex lens 261, and the outer surface has a radius r around the position of the light emitting diode. A portion 26 exhibiting a spherical surface of
2, and the remaining lower portion 263.
凸レンズ２６１に入射しない光は、一般に散乱光となり
易く、このために前方へは放出し難い室光に述べたが、
第３図に示す実施例においては、発光ダイオード２１か
ら半径ｒの球面を呈する部分２６２の外表面に向かって
進む光（すなわち第３図における角度θ１の範囲内の光
）は、前記外表面の法線上を通過するために、有機高分
子モールドの材質（屈折率）”の如何を問わず前記外表
面において屈折することなく更に直進してパラボラ反射
鏡３に至るので散乱を生じることなく反射・集光されて
効果的に前方に放出される。したがって凸レンズ２６１
に入射し、屈折・集光される光と相乗して前方への放出
光が強力となる。As mentioned above, the light that does not enter the convex lens 261 is generally likely to become scattered light, and therefore is difficult to emit forward.
In the embodiment shown in FIG. 3, the light traveling from the light emitting diode 21 toward the outer surface of the portion 262 exhibiting a spherical surface with radius r (that is, the light within the range of angle θ1 in FIG. 3) is Because it passes on the normal line, it goes straight to the parabolic reflector 3 without being refracted at the outer surface, regardless of the material (refractive index) of the organic polymer mold, so it is reflected and reflected without scattering. The light is condensed and effectively emitted forward.Therefore, the convex lens 261
When combined with the light that enters, is refracted and focused, the light emitted forward becomes more powerful.
凸レンズ２６１を除いて、球面を呈する部分２６２が半
球に近い程、換言すれば角度θ１が９０度に近い程パラ
ボラ反射鏡に直進させる光量が多くなるが、実際上は発
光ダイオード２１から基板１に対して平行に近い低角度
（第３図において角度θ２の領域）で放出される光量は
全発光量からみれば少量であるので上記の角度θ１を無
理に大きくする必要はなく、所望光量、発光ダイオード
の発光特性、ステム電極２２の中央の四部（該凹部の内
壁は反射面となっている）の深さ、あるいはその他の種
々の要素を考慮して最適角度を決定すればよい。角度θ
、を可及的に小さくすることにより有機高分子モールド
発光ダイオード２の径を小さくすることができ、自動車
用ストップランプのように一定面積の基板上に多数の有
機高分子モールド発光ダイオードを配置する場合に有利
とてる。したがって、上記の角度θ２は少なくとも１０
度、特に少なくとも２０度とし、一方角度θ、 （部分
２６２）は１０〜５０度、特に１５〜３０度とすること
が好ましい。Excluding the convex lens 261, the closer the spherical portion 262 is to a hemisphere, in other words, the closer the angle θ1 is to 90 degrees, the more light will be sent straight to the parabolic reflector. On the other hand, the amount of light emitted at a low angle close to parallel (the area of angle θ2 in Figure 3) is small compared to the total amount of light emitted, so there is no need to forcefully increase the angle θ1, and the desired amount of light and emitted light are The optimum angle may be determined in consideration of the light emitting characteristics of the diode, the depth of the four central portions of the stem electrode 22 (the inner walls of the recesses are reflective surfaces), or other various factors. Angle θ
By making , as small as possible, the diameter of the organic polymer molded light emitting diode 2 can be made small, and a large number of organic polymer molded light emitting diodes can be arranged on a substrate of a fixed area like an automobile stop lamp. It is advantageous in some cases. Therefore, the above angle θ2 is at least 10
degree, in particular at least 20 degrees, while angle θ, (portion 262) is preferably between 10 and 50 degrees, especially between 15 and 30 degrees.
この発光ダイオード構造物を実際に自動車のハンマラン
ト・ストップランプに使用する場合には第４図に示すよ
うに、パラボラ反射鏡３の上に赤色拡散カバー４を取付
け、または取付けることなく、第５図に示す如くハンマ
ラント・ストップランプのケーシング５に組み込んで、
自動車の車室内において後部窓ガラスを通して自動車の
後方から良く見える位置に取付ける。この場合、赤色拡
散カバー４から発散される光が赤色であれば、発光ダイ
オードの発光色や拡散カバーの色には特に制限はなく、
たとえば、赤色発光ダイオード及び赤色の拡散カバーを
使用してもよいが、赤色発光ダイオードを用いた場合は
必ずしも赤色の拡散カバーを使用する必要はなく、たと
えば無色の拡散カバーであっても構わない。本発明の発
光ダイオード構造物は、前述したように従来の発光ダイ
オード構造物よりも一段と発光光度が向上したものであ
るため、これを自動車のストップランプに使用すれば１
．鮮明な赤色光を外部に発散して、視覚に対して注、怠
を強力に働き掛け、確実に視認擦ることができ、交通安
全上においても大変有用である。When this light emitting diode structure is actually used in a hammer-and-stop lamp of an automobile, a red diffusion cover 4 is attached on top of the parabolic reflector 3 as shown in FIG. As shown in the figure, it is incorporated into the casing 5 of the hammerant stop lamp,
To be installed in the interior of a car in a position that can be clearly seen from the rear of the car through the rear window glass. In this case, as long as the light emitted from the red diffusion cover 4 is red, there are no particular restrictions on the emitted light color of the light emitting diode or the color of the diffusion cover.
For example, a red light emitting diode and a red diffuser cover may be used, but when a red light emitting diode is used, it is not necessary to use a red diffuser cover; for example, a colorless diffuser cover may be used. As mentioned above, the light-emitting diode structure of the present invention has a much higher luminous intensity than the conventional light-emitting diode structure, so if it is used for an automobile stop lamp,
．． It emits a clear red light to the outside, strongly stimulating visual attention and alertness, making it possible to reliably see and check, which is also very useful for traffic safety.
以上説明したように、本発明の発光ダイオード構造物は
、発光ダイオードとして透光性の有機高分子にて頂部が
凸レンズとなるようにモールドしたものを用い、かつ個
々の発光ダイオードはパラボラ反射鏡をも有しているの
で発光ダイオード１個あたりの前方方向への光量が従来
品のそれと比較して格段に大きくなる。したがって本発
明の発光ダイオード＋Ｉｌ造物は、特に自動車のストッ
プランプのＪＩＳ及びＳＡＥの光度規準を満足するもの
であり、ハイマウント・ストップランプに使用すれば、
より高い発光度により視認性の向上が計れるため、交通
安全上有効なものである。As explained above, the light emitting diode structure of the present invention uses a light emitting diode molded with a transparent organic polymer so that the top becomes a convex lens, and each light emitting diode has a parabolic reflecting mirror. Since the light emitting diode also has a light emitting diode, the amount of light emitted in the forward direction per light emitting diode is significantly larger than that of conventional products. Therefore, the light emitting diode + Il structure of the present invention particularly satisfies the JIS and SAE luminous intensity standards for automobile stop lamps, and when used in high-mounted stop lamps,
It is effective for traffic safety because visibility can be improved due to higher luminous intensity.
第１図は、本発明実施例の断面図であって、ｌは基板、
２は基板１の上に縦横に整列して基盤目状に取付けられ
た多数の有機高分子モールド発光ダイオード、３はパラ
ボラ反射鏡である。
第２図は、本発明の他の実施例についての断面図であっ
て２段の曲面を有するパラボラ反ルＩ Ｓｎ ３を備え
たものである。
第３図は、本発明の更に他の実施例についての断面図で
あって、有機高分子モールド発光ダイオード２のモール
ド部２６は、凸レンズ２６１、外表面が発光ダイオード
の存在位置を中心として半径ｒの球面を呈する部分２６
２、および残部下位部分２６３とからなっている。
第４図は第１図に示した構造物を自動車のハイマウント
・ストップランプに使用す−（く赤色拡散カバーを取付
けた時の断面図、第５図は第４図に示したランプを自動
車のハイマウント・ストップランプのケーシングに組み
込んだ時の斜視図である。FIG. 1 is a cross-sectional view of an embodiment of the present invention, where l is a substrate;
Reference numeral 2 designates a large number of organic polymer molded light emitting diodes which are arranged in rows and columns in a grid pattern on the substrate 1, and reference numeral 3 is a parabolic reflecting mirror. FIG. 2 is a cross-sectional view of another embodiment of the present invention, which includes a parabolic curve I Sn 3 having a two-stage curved surface. FIG. 3 is a cross-sectional view of still another embodiment of the present invention, in which the mold part 26 of the organic polymer molded light emitting diode 2 has a convex lens 261, and the outer surface has a radius r around the position of the light emitting diode. A portion 26 exhibiting a spherical surface of
2, and the remaining lower portion 263. Figure 4 is a cross-sectional view of the structure shown in Figure 1 used in a high-mounted stop lamp for an automobile. FIG. 2 is a perspective view of the high-mounted stop lamp when it is assembled into a casing.
Claims (5)
うにモールドした発光ダイオードの多数を平面上に配列
してなり、且つ各発光ダイオードは発光光をそれぞれ前
方に反射するためのパラボラ反射鏡を有することを特徴
とする発光ダイオード構造物。(1) A large number of light-emitting diodes molded with a light-transmitting organic polymer so that the top becomes a convex lens are arranged on a plane, and each light-emitting diode is a parabola that reflects the emitted light forward. A light emitting diode structure characterized by having a reflecting mirror.
１０＾１５〜１０＾１＾９／ｃｍ＾３で、ダブルヘテロ
構造を有するものであることを特徴とする特許請求の範
囲第（１）項記載の発光ダイオード構造物。(2) The light emitting diode is characterized in that the active layer has a carrier concentration of 10^15 to 10^1^9/cm^3 and has a double heterostructure. The light emitting diode structure described in .
ンズ頂部から前記平面に対して略平行方向に進む光を前
方に反射する鏡面を有することを特徴とする特許請求の
範囲第（１）項記載の発光ダイオード構造物。(3) The parabolic reflecting mirror has a mirror surface that forwardly reflects light traveling in a direction substantially parallel to the plane from the top of the convex lens of the organic polymer mold. light emitting diode structure.
下部の一部または全部が発光ダイオードの存在位置を中
心とする球面となっていることを特徴とする特許請求の
範囲第（１）項記載の発光ダイオード構造物。(4) A light emitting device according to claim (1), characterized in that a portion or the entire portion of the organic polymer mold below the convex lens portion is a spherical surface centered at the position of the light emitting diode. diode structure.
ンプであることを特徴とする特許請求の範囲第（１）項
乃至第（４）項のいずれかに記載の発光ダイオード構造
物。(5) The light emitting diode structure according to any one of claims (1) to (4), wherein the light emitting diode structure is an automobile stop lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61177434A JPH06101593B2 (en) | 1986-07-28 | 1986-07-28 | Light emitting diode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61177434A JPH06101593B2 (en) | 1986-07-28 | 1986-07-28 | Light emitting diode structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6333878A true JPS6333878A (en) | 1988-02-13 |
| JPH06101593B2 JPH06101593B2 (en) | 1994-12-12 |
Family
ID=16030876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61177434A Expired - Lifetime JPH06101593B2 (en) | 1986-07-28 | 1986-07-28 | Light emitting diode structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06101593B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4987843A (en) * | 1988-01-29 | 1991-01-29 | Pegasus Sewing Machine Co., Ltd. | Upper feed adjusting mechanism for seing machine |
| JP2005109172A (en) * | 2003-09-30 | 2005-04-21 | Citizen Electronics Co Ltd | Light emitting diode |
| WO2006059422A1 (en) * | 2004-11-30 | 2006-06-08 | Kabushikikaisha Mirai | Illumination unit and illumination apparatus |
| WO2007026696A1 (en) * | 2005-08-30 | 2007-03-08 | Kabushikikaisha Mirai | Lighting panel and lighting device |
| WO2007026695A1 (en) * | 2005-08-30 | 2007-03-08 | Kabushikikaisha Mirai | Lighting device |
| JP2008039359A (en) * | 2006-08-10 | 2008-02-21 | Matsushita Electric Ind Co Ltd | Storage device |
| WO2008035693A1 (en) * | 2006-09-20 | 2008-03-27 | Osram Gesellschaft Mit Beschraenkter Haftung | Led lamp |
| GB2466633A (en) * | 2008-12-12 | 2010-07-07 | Glory Science Co Ltd | Method of manufacturing a light emitting unit |
| JP2011014505A (en) * | 2009-07-06 | 2011-01-20 | Erumu:Kk | Led bulb |
| JP2011040196A (en) * | 2009-08-07 | 2011-02-24 | Konica Minolta Opto Inc | Led lighting device, street light, and reflector for led lighting |
| DE10245933B4 (en) * | 2002-09-30 | 2013-10-10 | Osram Opto Semiconductors Gmbh | Device for generating a bundled luminous flux |
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| JPS5118488A (en) * | 1974-08-06 | 1976-02-14 | Matsushita Electric Works Ltd | Hatsukodaioodono toritsukesochi |
| JPS52109477U (en) * | 1976-02-16 | 1977-08-19 | ||
| JPS55179075U (en) * | 1979-06-11 | 1980-12-23 | ||
| JPS5990973A (en) * | 1982-11-16 | 1984-05-25 | Nec Corp | Semiconductor light-emitting diode |
| JPS60254180A (en) * | 1984-05-31 | 1985-12-14 | 東芝ライテック株式会社 | Display |
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|---|---|---|---|---|
| JPS5118488A (en) * | 1974-08-06 | 1976-02-14 | Matsushita Electric Works Ltd | Hatsukodaioodono toritsukesochi |
| JPS52109477U (en) * | 1976-02-16 | 1977-08-19 | ||
| JPS55179075U (en) * | 1979-06-11 | 1980-12-23 | ||
| JPS5990973A (en) * | 1982-11-16 | 1984-05-25 | Nec Corp | Semiconductor light-emitting diode |
| JPS60254180A (en) * | 1984-05-31 | 1985-12-14 | 東芝ライテック株式会社 | Display |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4987843A (en) * | 1988-01-29 | 1991-01-29 | Pegasus Sewing Machine Co., Ltd. | Upper feed adjusting mechanism for seing machine |
| DE10245933B4 (en) * | 2002-09-30 | 2013-10-10 | Osram Opto Semiconductors Gmbh | Device for generating a bundled luminous flux |
| JP2005109172A (en) * | 2003-09-30 | 2005-04-21 | Citizen Electronics Co Ltd | Light emitting diode |
| WO2006059422A1 (en) * | 2004-11-30 | 2006-06-08 | Kabushikikaisha Mirai | Illumination unit and illumination apparatus |
| KR100846043B1 (en) * | 2005-08-30 | 2008-07-11 | 가부시키가이샤 미라이 | Illuminating device |
| WO2007026695A1 (en) * | 2005-08-30 | 2007-03-08 | Kabushikikaisha Mirai | Lighting device |
| US7407307B2 (en) | 2005-08-30 | 2008-08-05 | Kabushikikaisha Mirai | Illuminating panel and illuminating device |
| US7547126B2 (en) | 2005-08-30 | 2009-06-16 | Kabushikikaisha Mirai | Illuminating device |
| WO2007026696A1 (en) * | 2005-08-30 | 2007-03-08 | Kabushikikaisha Mirai | Lighting panel and lighting device |
| JP2008039359A (en) * | 2006-08-10 | 2008-02-21 | Matsushita Electric Ind Co Ltd | Storage device |
| WO2008035693A1 (en) * | 2006-09-20 | 2008-03-27 | Osram Gesellschaft Mit Beschraenkter Haftung | Led lamp |
| JP2008077899A (en) * | 2006-09-20 | 2008-04-03 | Osram-Melco Ltd | Led lamp |
| US8425080B2 (en) | 2006-09-20 | 2013-04-23 | Osram Gesellschaft Mit Beschrankter Haftung | LED lamp |
| GB2466633A (en) * | 2008-12-12 | 2010-07-07 | Glory Science Co Ltd | Method of manufacturing a light emitting unit |
| JP2011014505A (en) * | 2009-07-06 | 2011-01-20 | Erumu:Kk | Led bulb |
| JP2011040196A (en) * | 2009-08-07 | 2011-02-24 | Konica Minolta Opto Inc | Led lighting device, street light, and reflector for led lighting |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06101593B2 (en) | 1994-12-12 |
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