JPH0424561Y2 - - Google Patents
Info
- Publication number
- JPH0424561Y2 JPH0424561Y2 JP1987009912U JP991287U JPH0424561Y2 JP H0424561 Y2 JPH0424561 Y2 JP H0424561Y2 JP 1987009912 U JP1987009912 U JP 1987009912U JP 991287 U JP991287 U JP 991287U JP H0424561 Y2 JPH0424561 Y2 JP H0424561Y2
- Authority
- JP
- Japan
- Prior art keywords
- envelope
- light emitting
- light
- lamp
- light distribution
- 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.)
- Expired
Links
- 239000004065 semiconductor Substances 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- IHGSAQHSAGRWNI-UHFFFAOYSA-N 1-(4-bromophenyl)-2,2,2-trifluoroethanone Chemical compound FC(F)(F)C(=O)C1=CC=C(Br)C=C1 IHGSAQHSAGRWNI-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—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
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L24/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は多数の発光ダイオードを光源として使
用する自動車用灯具に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an automotive lamp that uses a large number of light emitting diodes as a light source.
近年、半導体技術の発達により輝度の高い発光
ダイオード（以下LEDと略す）が開発され、安
価に入手できるようになつたこと、また赤、緑、
黄など各種の発光色が得られるようになつたこと
から自動車の尾灯、制動灯や、電気機器の表示器
などの光源として普及使用されるに至つている。
第１０図および第１１図はこの種のLEDを使用
した照明装置の従来例を示すもので、１はケー
ス、２はケース１の前面開口部を塞ぐ前面レン
ズ、３はケース１内に配設されたプリント基板、
４はプリント基板３の表面に所定の間隔をおいて
ｍ×ｎのマトリツクス状に実装されたLEDであ
る。
In recent years, with the development of semiconductor technology, high brightness light emitting diodes (hereinafter referred to as LEDs) have been developed and are now available at low cost.
Since it has become possible to obtain various luminescent colors such as yellow, it has come to be widely used as a light source for automobile taillights, brake lights, and indicators of electrical equipment.
Figures 10 and 11 show conventional examples of lighting devices using this type of LED, where 1 is a case, 2 is a front lens that closes the front opening of case 1, and 3 is arranged inside case 1. printed circuit board,
Reference numeral 4 denotes LEDs mounted on the surface of the printed circuit board 3 in an m×n matrix at predetermined intervals.
LED４は、通常ガリウム燐（GaP），ガリウム
アルミニウム燐（GaAlP）、ガリウム砒素燐
（GaAsP）など金属間化合物半導体のPN接合ダ
イオードとして作られたものが多く、PN接合に
順方向電流を流した時に特定の波長の光が出るも
ので、半導体チツプ５と、エポキシ樹脂等の透明
度の高い樹脂によつて略砲弾型に形成され前記半
導体チツプ５を外気から保護する外囲器６と、一
対のリード線７Ａ，７Ｂおよびボンデイング線８
等で構成されている。外囲器６の先端部はドーム
状に形成され、光の指向性を高める光学レンズと
しての機能を果している。 LED4 is usually made as a PN junction diode of an intermetallic compound semiconductor such as gallium phosphide (GaP), gallium aluminum phosphide (GaAlP), or gallium arsenide phosphide (GaAsP), and when a forward current is passed through the PN junction, It emits light of a specific wavelength, and includes a semiconductor chip 5, an envelope 6 made of highly transparent resin such as epoxy resin, and shaped like a bullet to protect the semiconductor chip 5 from the outside air, and a pair of leads. Wires 7A, 7B and bonding wire 8
It is composed of etc. The tip of the envelope 6 is formed into a dome shape and functions as an optical lens that increases the directivity of light.
ところで、LED４は発光出力の指向性が強い
ため第１２図に示すように光軸周りの光度が著し
く高く、したがつてその配光パターンについて見
れば第１３図に示すように円形または楕円形とな
るため自動車用灯具において要求される矩形の配
光パターンを満足させることができないという問
題がある。
By the way, since LED4 has a strong directivity of light emitting output, the luminous intensity around the optical axis is extremely high as shown in Fig. 12. Therefore, when looking at its light distribution pattern, it has a circular or elliptical shape as shown in Fig. 13. Therefore, there is a problem that the rectangular light distribution pattern required for automobile lamps cannot be satisfied.
〔問題点を解決するための手段〕
本考案に係る自動車用灯具は上述したような問
題点を解決すべくなされたもので、透明樹脂から
なる外囲器内に半導体チツプをモールドしてなる
発光ダイオードをケース内に多数個収納配置した
自動車用灯具において、前記各発光ダイオードの
外囲器はレンズ作用を有するドーム部を有し、光
軸と直交する方向における断面形状を矩形とさ
れ、且つ一体成形されることによりユニツト化さ
れているものである。[Means for Solving the Problems] The automotive lamp according to the present invention has been developed to solve the above-mentioned problems. In an automobile lamp in which a large number of diodes are housed in a case, the envelope of each light emitting diode has a dome portion having a lens function, has a rectangular cross-sectional shape in a direction perpendicular to the optical axis, and is integrally arranged. It is made into a unit by being molded.
本考案においては外囲器の断面形状を矩形にし
たので、自動車用灯具として最適な矩形の配光パ
ターンを容易に得ることができる。また、発光ダ
イオードは外囲器の一体成形によつてユニツト化
されており、灯具内への組込み作業を容易にす
る。
In the present invention, since the cross-sectional shape of the envelope is rectangular, it is possible to easily obtain a rectangular light distribution pattern that is optimal for an automobile lamp. Furthermore, the light emitting diode is made into a unit by integrally molding the envelope, making it easy to incorporate it into the lamp.
以下、本考案を図面に示す実施例に基づいて詳
細に説明する。
Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
第１図は本考案に係る自動車用灯具の一実施例
を示す要部正面図、第２図は第１図−線断面
図、第３図は第１図−線断面図である。な
お、図中第１０図および第１１図と同一構成部品
については同一符号を以つて示し、その説明を省
略する。これらの図において、プリント基板３に
実装される多数のLED４は一体に形成されるこ
とにより、各外囲器６の基部が連結基部２０によ
つて縦、横一連に連結されている。また、各外囲
器６は、そのドーム部２１側から見た形状、言い
換えれば光軸（中心軸）と直交する断面形状が矩
形で、光軸上に半導体チツプ５が配設されてい
る。 FIG. 1 is a front view of essential parts showing an embodiment of an automobile lamp according to the present invention, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIG. 3 is a sectional view taken along the line of FIG. 1. Components that are the same as those in FIGS. 10 and 11 are designated by the same reference numerals, and their explanations will be omitted. In these figures, a large number of LEDs 4 mounted on a printed circuit board 3 are integrally formed, so that the base of each envelope 6 is connected vertically and horizontally by a connecting base 20. Further, each envelope 6 has a rectangular shape when viewed from the dome portion 21 side, in other words, a cross section perpendicular to the optical axis (center axis), and the semiconductor chip 5 is disposed on the optical axis.
かくして、このような構成からなる自動車用灯
具においては、外囲器６の断面形状からして第４
図に示す如く各辺が内側に歪んだ矩形の配光パタ
ーンを得ることができるものである。したがつ
て、矩形の配光パターンが要求される自動車用灯
具として最適である。また、発光ダイオードは外
囲器の一体成形によつてユニツト化されているの
で、取り扱いが著しく容易で、部品点数およびプ
リント基板への組付工数を削減することができ、
また全ての発光ダイオードを整一に配列すること
ができて、傾き、取付高さ、配列ピツチの誤差等
を生じず、したがつて調整作業が不要で、良好な
配光特性を得ることができる。 Thus, in the automobile lamp having such a configuration, the fourth
As shown in the figure, a rectangular light distribution pattern with each side distorted inward can be obtained. Therefore, it is most suitable as an automotive lamp that requires a rectangular light distribution pattern. Furthermore, since the light emitting diode is made into a unit by integrally molding the envelope, it is extremely easy to handle, and the number of parts and the number of man-hours for assembling it to the printed circuit board can be reduced.
In addition, all the light emitting diodes can be arranged evenly, eliminating errors in tilt, mounting height, arrangement pitch, etc. Therefore, there is no need for adjustment work, and good light distribution characteristics can be obtained. .
なお、本実施例においては各外囲器６が連結基
部２０によつて一連に連結されているので、各
LED４の間隔、向き（傾き）がすべて一定で、
プリント基板３に対する組付誤差を生じず、した
がつて組付誤差による明暗差の発生を防止でき、
均一照明を可能にするという利点も有している。 In addition, in this embodiment, since each envelope 6 is connected in series by the connection base 20, each
The interval and direction (tilt) of LED4 are all constant,
There is no assembly error with respect to the printed circuit board 3, and therefore it is possible to prevent differences in brightness due to assembly error.
It also has the advantage of allowing uniform illumination.
第５図はLEDの他の実施例を示す正面図、第
６図は同LEDの−線断面図である。この実
施例は外囲器６の上面部（第５図斜線部）を光軸
Ｌと略平行にカツトすることによりドーム部２１
から上方に向つて出射する光の量を減じ、第７図
に示すような上、下非対称で下方により大きく歪
んだ矩形の配光パターンを得るようにしたもので
ある。このような配光パターンが要求される灯具
としては、車体後部の側縁寄りに配設される方向
指示灯とか、リアウインドの内側に配設されブレ
ーキ時に点灯して後続車ドライバーに注意をより
一層喚起させるハイマウントストツプランプなど
が挙げられる。特に、ハイマウントストツプラン
プに適用した場合は、該ランプより出射し上方に
向う光がリアウインドを透過する際、上方に屈折
してしまうため、この屈折する光を考慮してあら
かじめ外囲器６の上面部を前述した通り切除して
おくと、上方に向う光が少なくなるので下方へ歪
んだ配光パターンが得られ、後続車ドライバーに
よる視認性を向上させることができ、その意義大
である。 FIG. 5 is a front view showing another embodiment of the LED, and FIG. 6 is a sectional view taken along the - line of the same LED. In this embodiment, the dome portion 21 is cut by cutting the upper surface portion of the envelope 6 (the shaded portion in FIG. 5) substantially parallel to the optical axis L.
The amount of light emitted upward is reduced to obtain a rectangular light distribution pattern that is asymmetrical upwardly and downwardly and is more distorted downwardly, as shown in FIG. Lights that require such a light distribution pattern include direction indicator lights placed near the side edges of the rear of the vehicle, and lights placed inside the rear window that light up when braking to alert drivers of following vehicles. Examples include high-mounted stump lamps that make it even more evocative. In particular, when applied to a high-mount stop lamp, the light emitted from the lamp and directed upward will be refracted upward when it passes through the rear window. If the upper surface is removed as described above, less light will be directed upwards, resulting in a downwardly distorted light distribution pattern, which will improve visibility for drivers of following cars, which is of great significance. .
第８図は本考案のさらに他の実施例を示す
LEDの断面図である。この実施例は外囲器６の
ドーム部２１の曲率半径を光軸Ｌより上方のドー
ム部分２１ａと、下方のドーム部分２１ｂとで変
え、上方のドーム部分２１ａの半径R1を下方の
ドーム部分２１ｂの半径R2より小さく（R2＞R1）
したものである。このような構成においては半導
体チツプ５から出た光のうち上方のドーム部分２
１ａを透過する光４６がR2＞R1により下方のド
ーム部分２１ｂを透過する光４５に比してより大
きく下方に屈折するため、第５図および第６図に
示した実施例と同様に、第７図に示すような配光
パターンを得ることができる。したがつて、本実
施例では外囲器６の上面部を切除する必要がな
い。 FIG. 8 shows yet another embodiment of the present invention.
FIG. 3 is a cross-sectional view of an LED. In this embodiment, the radius of curvature of the dome portion 21 of the envelope 6 is changed between the dome portion 21a above the optical axis L and the dome portion 21b below, and the radius R 1 of the upper dome portion 21a is changed from the radius R 1 of the dome portion 21a below the optical axis L. The radius of 21b is smaller than R 2 (R 2 > R 1 )
This is what I did. In such a configuration, the upper dome portion 2 of the light emitted from the semiconductor chip 5
Since the light 46 transmitted through the dome 1a is refracted downward to a greater extent than the light 45 transmitted through the lower dome portion 21b due to R 2 > R 1 , it is similar to the embodiment shown in FIGS. 5 and 6. , a light distribution pattern as shown in FIG. 7 can be obtained. Therefore, in this embodiment, there is no need to cut out the upper surface of the envelope 6.
第９図は本考案のさらに他の実施例を示す要部
の斜視図である。この実施例はAl等の金属製基
板５０の表面に半導体チツプ５を配設した所謂オ
ン・ボートタイプと呼ばれるもので、基板５０の
表面に多数の収納凹部５２を適宜間隔をおいて形
成すると共にこれらの収納凹部５２を含む表面の
一部に絶縁層５４を介して導電層５５を蒸着等に
よつて形成し、この導電層５５上に半導体チツプ
５を設け、かつ金線５６によつて半導体チツプ５
と導電層５５を直列に接続したものである。各半
導体チツプ５は収納凹部５２内に配置され、これ
を外囲器としての透明な樹脂５８によつてモール
ドし、外気から保護している。樹脂５８は基板５
０の表面全体に設けられ、各収納凹部５２に対応
する部分の表面には略方形の突部５９が一体に突
設され、その先端面は曲面をなしレンズ機能を有
している。 FIG. 9 is a perspective view of main parts showing still another embodiment of the present invention. This embodiment is a so-called on-board type in which semiconductor chips 5 are disposed on the surface of a metal substrate 50 such as Al, and a large number of storage recesses 52 are formed at appropriate intervals on the surface of the substrate 50. A conductive layer 55 is formed by vapor deposition or the like on a part of the surface including these storage recesses 52 via an insulating layer 54, and a semiconductor chip 5 is provided on this conductive layer 55. Chip 5
and a conductive layer 55 are connected in series. Each semiconductor chip 5 is placed in a storage recess 52 and is molded with a transparent resin 58 as an envelope to protect it from the outside air. The resin 58 is the substrate 5
A substantially rectangular protrusion 59 is provided on the entire surface of the housing 0, and a substantially rectangular protrusion 59 is integrally protruded from the surface of the portion corresponding to each storage recess 52, and its distal end surface is curved and has a lens function.
このような構成においても同様な効果が得られ
ることは明らかであろう。 It is obvious that similar effects can be obtained with such a configuration.
以上述べたように本考案に係る照明または表示
装置は、発光ダイオードの外囲器の断面形状を矩
形にしているので、略矩形の配光パターンを得る
ことができ、車輌用灯具に適用して好適である。
また、各半導体チツプを保護する外囲器を一体成
形して発光ダイオードのユニツト化を図るように
したので、取り扱いが著しく容易で、部品点数お
よびプリント基板への組付工数を大幅に削減する
ことができ、また全ての発光ダイオードを整一に
配列することができるため、傾き、取付高さ、配
列ピツチの誤差等を生じず、したがつて調整作業
が不要で、良好な配光特性を得ることができる。
As described above, since the lighting or display device according to the present invention has a rectangular cross-sectional shape of the envelope of the light emitting diode, it is possible to obtain a substantially rectangular light distribution pattern, and it can be applied to a vehicle lamp. suitable.
In addition, the envelope that protects each semiconductor chip is integrally molded to form a unit of light emitting diodes, making it extremely easy to handle and greatly reducing the number of parts and the number of man-hours required for assembly to the printed circuit board. In addition, since all the light emitting diodes can be arranged evenly, there will be no errors in tilt, mounting height, or arrangement pitch, and therefore no adjustment work is required and good light distribution characteristics can be obtained. be able to.
第１図は本考案に係る照明または表示装置の一
実施例を示す要部正面図、第２図は第１図−
線断面図、第３図は第１図−線断面図、第４
図は配光パターンを示す図、第５図は本考案によ
るLEDの他の実施例を示す正面図、第６図は同
LEDの第５図−線断面図、第７図は配光パ
ターンを示す図、第８図は本考案によるLEDの
さらに他の実施例を示す断面図、第９図は本考案
のさらに他の実施例を示す要部斜視図、第１０図
は従来装置の一例を示す一部破断正面図、第１１
図は第１０図−線断面図、第１２図は光度の
分布図、第１３図は配光パターンを示す図であ
る。
１……ケース、２……前面レンズ、３……プリ
ント基板、４……LED、５……半導体チツプ、
６……外囲器、７Ａ，７Ｂ……リード線、２０…
…連結基部、２１……ドーム部。
FIG. 1 is a front view of essential parts showing an embodiment of the illumination or display device according to the present invention, and FIG.
The line sectional view, Figure 3 is the line sectional view of Figure 1 - line sectional view, Figure 4.
The figure shows the light distribution pattern, Figure 5 is a front view showing another embodiment of the LED according to the present invention, and Figure 6 is the same.
FIG. 5 is a line sectional view of the LED, FIG. 7 is a diagram showing the light distribution pattern, FIG. 8 is a sectional view showing still another embodiment of the LED according to the present invention, and FIG. 9 is a diagram showing still another embodiment of the LED according to the present invention. FIG. 10 is a partially cutaway front view showing an example of a conventional device; FIG.
The figures are a sectional view taken along the line of FIG. 10, FIG. 12 is a distribution diagram of luminous intensity, and FIG. 13 is a diagram showing a light distribution pattern. 1... Case, 2... Front lens, 3... Printed circuit board, 4... LED, 5... Semiconductor chip,
6... Envelope, 7A, 7B... Lead wire, 20...
...Connection base, 21...Dome part.
Claims (1)
ールドしてなる発光ダイオードをケース内に多数
個収納配置した自動車用灯具において、前記各発
光ダイオードの外囲器はレンズ作用を有するドー
ム部を有し、光軸と直交する方向における断面形
状を矩形とされ、且つ一体成形されることにより
ユニツト化されていることを特徴とする自動車用
灯具。 In an automotive lamp in which a large number of light emitting diodes each formed by molding a semiconductor chip in an envelope made of transparent resin are housed in a case, the envelope of each light emitting diode has a dome portion having a lens function. An automotive lamp characterized in that the cross-sectional shape in the direction perpendicular to the optical axis is rectangular, and the lamp is integrally formed into a unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987009912U JPH0424561Y2 (en) | 1987-01-28 | 1987-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987009912U JPH0424561Y2 (en) | 1987-01-28 | 1987-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63120303U JPS63120303U (en) | 1988-08-04 |
| JPH0424561Y2 true JPH0424561Y2 (en) | 1992-06-10 |
Family
ID=30795677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987009912U Expired JPH0424561Y2 (en) | 1987-01-28 | 1987-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424561Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2504533B2 (en) * | 1988-09-02 | 1996-06-05 | 同和鉱業株式会社 | LED light emitting device and method of manufacturing light emitting block used in the device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61179003A (en) * | 1985-02-04 | 1986-08-11 | スタンレー電気株式会社 | Light source for vehicle lamp apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5563138U (en) * | 1978-10-23 | 1980-04-30 | ||
| JPS57112405U (en) * | 1980-12-29 | 1982-07-12 | ||
| JPS60130001U (en) * | 1984-02-10 | 1985-08-31 | 日立工機株式会社 | Tilt angle adjustment mechanism of portable electric circular saw machine |
| JPS60135239U (en) * | 1984-02-21 | 1985-09-09 | 株式会社東芝 | vehicle tail light |
-
1987
- 1987-01-28 JP JP1987009912U patent/JPH0424561Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61179003A (en) * | 1985-02-04 | 1986-08-11 | スタンレー電気株式会社 | Light source for vehicle lamp apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63120303U (en) | 1988-08-04 |
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