JPH0426161B2 - - Google Patents
Info
- Publication number
- JPH0426161B2 JPH0426161B2 JP60028012A JP2801285A JPH0426161B2 JP H0426161 B2 JPH0426161 B2 JP H0426161B2 JP 60028012 A JP60028012 A JP 60028012A JP 2801285 A JP2801285 A JP 2801285A JP H0426161 B2 JPH0426161 B2 JP H0426161B2
- Authority
- JP
- Japan
- Prior art keywords
- led
- lens
- shape
- attached
- lamp
- 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 - Lifetime
Links
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000004907 flux Effects 0.000 description 14
- 230000003760 hair shine Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明はLEDを光源とし、テール又はストツ
プランプとして使用される車輌用灯具に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vehicle lamp that uses an LED as a light source and is used as a tail or stop lamp.
[従来技術]
LEDを光源とする一般的な灯具又表示装置に
あつては、プリント基板に2本のリードフレーム
を介してLEDを取付け、該LEDから所定の配光
を得るためにレンズが取付けられる構成になつて
いる。[Prior art] In general lamps and display devices that use LEDs as light sources, the LEDs are attached to a printed circuit board via two lead frames, and a lens is attached to obtain a predetermined light distribution from the LEDs. It is structured so that it can be used.
このような構成のLEDを、仮りにテール又は
ストツプランプ等の車輌用灯具として使用する場
合には、第5〜6図に示した構成になるものと考
えられる。この場合の灯具は、ストツプランプの
例であり、例えば内部に2個のLED1,2が配
設されたものである。これらLEDは夫々2本の
リードフレーム3,4を介してプリント基板5に
取付けられ、該プリント基板5がベース6に取付
けられると共に正面視が長方形で且つ断面がコ字
状を呈するレンズ7が前記LED1,2を包む込
むようにしてベースに取付けられる。そして前記
レンズ7には正面側の内側に適宜のレンズカツト
7aが施されている。 If an LED having such a configuration is to be used as a vehicle lamp such as a tail lamp or stop lamp, the configuration shown in FIGS. 5 and 6 will be considered. The lamp in this case is an example of a stop lamp, and has, for example, two LEDs 1 and 2 disposed inside. These LEDs are attached to a printed circuit board 5 via two lead frames 3 and 4, respectively, and the printed circuit board 5 is attached to a base 6, and a lens 7, which is rectangular in front view and U-shaped in cross section, is attached to the It can be attached to the base so as to wrap around LEDs 1 and 2. The lens 7 is provided with a suitable lens cut 7a on the inside of the front side.
このような構成であると、LED1,2から放
射される前面側の光束aがレンズカツト7aを通
して外部に取出され、前面から見て範囲lの部分
が光輝する。又、LED1,2から放射される側
面への光束bはレンズ7の側面に向うだけである
から前面からは全く視認できない。従つて、単に
LEDをこの種灯具に使用したとしても、範囲l
の部分しか光輝しないため視認性が悪いという問
題点が生ずるばかりでなく、LEDから発生され
る光束の利用率が著しく悪く、しかも角形のレン
ズに対して円形のスポツト的照明となるので点灯
のフイリングも悪いという問題点が生ずることに
なる。 With such a configuration, the light beam a on the front side emitted from the LEDs 1 and 2 is extracted to the outside through the lens cut 7a, and the area l when viewed from the front shines. Further, the light flux b emitted from the LEDs 1 and 2 to the side faces only goes to the side faces of the lens 7, so it cannot be seen from the front at all. Therefore, simply
Even if LEDs are used in this type of lighting, the range
Not only does it cause the problem of poor visibility because only the part of the LED shines, but the utilization of the luminous flux generated by the LED is extremely poor, and the illumination is circular and spot-like compared to the rectangular lens, making it difficult to fill the lighting area. The problem arises that the quality is also poor.
[発明が解決しようとする問題点]
本発明は車輌用灯具の光源としてLEDを使用
した場合に生ずる視認性の問題点及び光束の利用
率の問題点、更には点灯のフイリングの問題点を
解決しようとするものである。[Problems to be Solved by the Invention] The present invention solves the visibility problem, the luminous flux utilization rate problem, and the lighting filling problem that occur when an LED is used as a light source for a vehicle lamp. This is what I am trying to do.
[問題点を解決するための手段]
本発明は前記した問題点を解決する具体的手段
として、ベースにLEDが配設されたプリント基
板を取付け、前記LEDに透明な反射部材を取付
け、該反射部材を取囲むようにしてレンズを配設
し、前記反射部材はその正面視の形状を長方形に
形成すると共に、略中央部に前記LEDが嵌る孔
を設け、背面側は前記LEDから側面に出る放射
光を前面に向けて略平行光線に反射させるドーム
状の曲面に形成し、前記中央部の孔はLEDが挿
着される部位を筒状に形成すると共に前面を角形
に形成し、前記筒状から角形に至る間を徐々に角
形に形成したことを特徴とする車輌用灯具を提供
しようとするものであつて、前記反射部材を
LEDに取付けることによつて、LEDの側面から
放射される光束を前面側への平行光線として利用
でき有効な光束を増すことによつて視認性が良好
となるばかりでなく、中央部の孔を角形にするこ
とによつて角形の灯具としての点灯フイリングが
良好となるのである。[Means for Solving the Problems] The present invention provides specific means for solving the above-mentioned problems by attaching a printed circuit board on which an LED is arranged to a base, attaching a transparent reflective member to the LED, and A lens is arranged so as to surround the member, and the reflecting member has a rectangular shape when viewed from the front, and a hole into which the LED fits is provided approximately in the center, and the back side has a hole for emitting light emitted from the LED to the side. is formed into a dome-shaped curved surface that reflects substantially parallel light toward the front, and the center hole has a cylindrical portion where the LED is inserted, and a rectangular front surface. An object of the present invention is to provide a vehicular lamp characterized in that the space leading to the rectangular shape is gradually formed into a rectangular shape, and the reflective member is
By attaching it to an LED, the luminous flux emitted from the side of the LED can be used as a parallel ray toward the front side, increasing the effective luminous flux, which not only improves visibility, but also improves visibility by increasing the effective luminous flux. By making it rectangular, the lighting filling as a rectangular lamp becomes better.
[実施例]
次に本発明を図示の実施例により更に詳しく説
明すると、図示の灯具は複数個のLEDを使用し
た場合のストツプランプである。11,12は光
源となるLEDであり、該LEDは一般に使用され
ているものがそのまま使用される。これらLED
11,12は夫々2本のリードフレーム13,1
4を介してプリント基板15に取付けられ、該プ
リント基板はベース16に取付けられる。このベ
ースにはストツプランプ用のレンズ17が取付け
られるが、該レンズ17の取付けに先立つて前記
各LED11,12に夫々同型の反射部材18が
取付けられる。[Example] Next, the present invention will be explained in more detail with reference to the illustrated embodiment. The illustrated lamp is a stop lamp using a plurality of LEDs. Reference numerals 11 and 12 indicate LEDs serving as light sources, and commonly used LEDs are used as they are. These LEDs
11 and 12 are two lead frames 13 and 1, respectively.
4 to a printed circuit board 15, and the printed circuit board is mounted to a base 16. A stop lamp lens 17 is attached to this base, but prior to attaching the lens 17, reflective members 18 of the same type are attached to each of the LEDs 11 and 12, respectively.
前記レンズ17の形状はストツプランプとして
適した正面視が長方形であると共に断面がコ字状
を呈し、前面側の内側面には適宜のレンズカツト
17aが施されている。 The shape of the lens 17 is rectangular in front view suitable as a stop lamp, and has a U-shape in cross section, and a suitable lens cut 17a is provided on the inner surface on the front side.
前記反射部材18は例えば透明プラスチツク又
はゴム等で形成され、正面視が長方形を呈する。
この場合の長方形の長辺の長さは前記したレンズ
17の約半分であり、2個のLED11,12に
取付けられて内側に収まる大きさである。尚両方
のLEDに取付けられる反射部材は実質的に同一
形状であるのでその一つについて説明する。 The reflecting member 18 is made of, for example, transparent plastic or rubber, and has a rectangular shape when viewed from the front.
In this case, the length of the long side of the rectangle is approximately half that of the lens 17 described above, and is large enough to be attached to the two LEDs 11 and 12 and fit inside. Note that the reflecting members attached to both LEDs have substantially the same shape, so one of them will be explained.
前記反射部材18は、第3図に示したように、
正面視が長方形であり、その中央部に背面側にま
で貫通する筒状の孔19が設けられ、該孔に前記
LED11が背面側から挿着して取付けられる。
従つて、この孔19はLEDが取付けられる背面
側の一定の流さ範囲、即ちLEDが取付けられる
部位19aをLEDの外形に合せて筒状に形成し、
反射部材18の前面に開口する部位19bを角形
(正方形又は長方形)に形成し、前記筒状の部位
から角形の部位置に至る間を筒形から角形に向け
て徐々に角形に形成してある。反射部材18の背
面側は取付けられたLED11から側面に放射さ
れる光束を前面側に向けて略平行光線になるよう
反射させるドーム状の曲面20に形成され、前記
ドーム状の曲面20と前記正面視の長方形の各辺
との境にカツト部21が成形されている。尚、背
面側には前記孔19の外周縁に沿つて壁部22が
設けられている。又、前記レンズ17におけるレ
ンズカツト17aは、凸レンズに限らず、第4図
に示したように凹レンズのレンズカツトを施すこ
とができることは勿論である。 The reflecting member 18, as shown in FIG.
It has a rectangular shape when viewed from the front, and a cylindrical hole 19 that penetrates to the back side is provided in the center of the rectangle.
The LED 11 can be installed by inserting it from the back side.
Therefore, this hole 19 has a certain flow range on the back side where the LED is attached, that is, the portion 19a where the LED is attached, is formed into a cylindrical shape to match the outer shape of the LED.
The portion 19b opening on the front surface of the reflecting member 18 is formed into a square shape (square or rectangle), and the portion from the cylindrical portion to the square portion position is gradually shaped into a square shape from the cylindrical shape to the square shape. . The back side of the reflecting member 18 is formed into a dome-shaped curved surface 20 that reflects the luminous flux emitted from the attached LED 11 to the side surface toward the front side so as to become approximately parallel rays, and the dome-shaped curved surface 20 and the front surface Cut portions 21 are formed at the boundaries of each side of the visible rectangle. Note that a wall portion 22 is provided along the outer peripheral edge of the hole 19 on the back side. Further, the lens cut 17a of the lens 17 is not limited to a convex lens, but it goes without saying that a concave lens can be formed as shown in FIG.
前記構成を有する本発明の車輌用灯具は、第2
図に示したように、LED11から放射される前
面側への光束aは、そのまま孔角形の部位19b
を通つてレンズ17に至り外部に取出され、側面
への光束bは前記反射部材18の曲面20によつ
て前面側への略平行光線に反射され、レンズ17
に通して外部に取出される。従つて、一般的に利
用されなかつたLEDから側面に出る光束を反射
部材18を使用することによつてほとんど全部前
面側に平行光線として反射させることができるの
で、前面側のレンズ全面が光輝し全体的な照度ア
ツプが図れるのである。この場合特に、中央部の
孔19が反射部材18の前面側において角形に形
成されているので、LED11の頂部即ち前面側
から出る光束が円形のスポツト的ではなく角形に
拡がつた状態となり、正面視において角形の灯具
の形状とマツチしたものとなり、しかもLED1
1の頂部から放射される光束が小さく円形に纒め
られることがないのでレンズ前面が略均等に光輝
し、それによつても視認性が良好となるのであ
る。尚、図示の実施例はストツプランプであるが
他のランプの場合でも同様である。 The vehicular lamp of the present invention having the above configuration has a second
As shown in the figure, the light flux a emitted from the LED 11 toward the front side is directly transmitted to the rectangular hole portion 19b.
The light beam b toward the side surface is reflected by the curved surface 20 of the reflecting member 18 into substantially parallel light beams toward the front side, and the light beam b reaches the lens 17 through the lens 17.
is taken out to the outside through the Therefore, by using the reflecting member 18, almost all of the luminous flux emitted from the side of the LED, which is not generally used, can be reflected to the front side as parallel rays, so that the entire surface of the lens on the front side shines. The overall illuminance can be increased. In this case, in particular, since the central hole 19 is formed in a square shape on the front side of the reflecting member 18, the light beam emitted from the top of the LED 11, that is, the front side, is not in a circular spot but spread out in a square shape. Visually, it matches the shape of a rectangular lamp, and LED1
Since the light beam emitted from the top of lens 1 is small and not concentrated in a circular shape, the front surface of the lens shines almost uniformly, which also improves visibility. Although the illustrated embodiment is a stop lamp, the same applies to other lamps.
[発明の効果]
以上説明したように本発明に係る車輌用灯具
は、正面視が角形で背面側がドーム状の曲面に形
成されるとともに中央部に筒状の孔を設けた反射
部材をLEDに取付けた構成にしたことにより、
LEDから放射される前面側への光束に加え、側
面に出る光束も前記曲面によつて、前面側への略
平行光線に反射し有効光線として利用できるので
光束の利用率を著しく向上させ、灯具全体の照度
アツプを図つて視認性を向上させることができる
と同時に、中央部に設けた孔をLEDが挿着され
る部位において筒状にし、前面側の部位において
角形に形成してあるので、LEDの取付状態が安
定すると共に、LEDの前面に放射される光束が
角形に拡がつて灯具形状にマツチし、点灯の体裁
が良いという優れた効果を奏する。[Effects of the Invention] As explained above, the vehicle lamp according to the present invention has a rectangular shape when viewed from the front, a dome-shaped curved surface on the back side, and a reflective member having a cylindrical hole in the center as an LED. By using the installed configuration,
In addition to the luminous flux emitted from the LED toward the front side, the luminous flux emitted from the side is also reflected by the curved surface into approximately parallel rays toward the front side and can be used as effective rays, so the utilization rate of the luminous flux is significantly improved, and the lighting The overall illuminance can be increased to improve visibility, and at the same time, the hole in the center is made cylindrical in the part where the LED is inserted, and square in the part on the front side. In addition to stabilizing the mounting condition of the LED, the luminous flux emitted from the front of the LED spreads out into a rectangular shape and matches the shape of the lamp, resulting in an excellent lighting effect.
又、反射部材をゴム等の軟質材料で形成するこ
とにより、LEDとの嵌着状態が安定し、更に反
射部材を灯具の形状に合せてその正面形状を種々
の形状に形成でき、その正面全体から光束が取出
せるので灯具照射面がスポツト的ではなく全体的
に光輝し、それによつても視認性が向上する等の
種々の優れた効果も奏する。 In addition, by forming the reflective member from a soft material such as rubber, the fitting state with the LED is stable, and the front face shape of the reflective member can be formed into various shapes to match the shape of the lamp. Since the luminous flux can be extracted from the lamp, the irradiated surface of the lamp shines not in spots, but as a whole, and this also brings about various excellent effects such as improved visibility.
第1図は本発明に係る車輌用灯具の一部を切欠
いて示した正面図、第2図は第1図の−線に
沿う断面図、第3図は同灯具に組込まれる反射部
材の斜視図、第4図は第2図ので示した部分の
他の例を示す断面図、第5図は一般的なLEDを
本発明と同じ灯具に配設した場合の第1図と同様
の正面図、第6図は第5図の−線に沿う断面
図である。
11,12……LED、13,14……リード
フレーム、15……プリント基板、16……ベー
ス、17……レンズ、17a……レンズカツト、
18……反射部材、19……孔、19a……筒状
の部位、19b……角形の部位、20……ドーム
状の曲面、21……カツト部。
Fig. 1 is a partially cutaway front view of a vehicle lamp according to the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a perspective view of a reflective member incorporated in the lamp. Figure 4 is a sectional view showing another example of the part shown in Figure 2, and Figure 5 is a front view similar to Figure 1 when a general LED is installed in the same lamp as the present invention. , FIG. 6 is a sectional view taken along the - line in FIG. 5. 11, 12... LED, 13, 14... Lead frame, 15... Printed circuit board, 16... Base, 17... Lens, 17a... Lens cut,
18... Reflective member, 19... Hole, 19a... Cylindrical portion, 19b... Square portion, 20... Dome-shaped curved surface, 21... Cut portion.
Claims (1)
取付け、前記LEDに透明な反射部材を取付け、
該反射部材を取囲むようにしてレンズを配設し、
前記反射部材はその正面視の形状を長方形に形成
すると共に、略中央部に前記LEDが嵌る孔を設
け、背面側は前記LEDから側面に出る放射光を
前面に向けて略平行光線に反射させるドーム状の
曲面に形成し、前記中央部の孔はLEDが挿着さ
れる部位を筒状に形成すると共に前面を角形に形
成し、前記筒状から角形に至る間を徐々に角形に
形成したことを特徴とする車輌用灯具。 2 前記反射部材を透明なプラスチツク又はゴム
で形成したことを特徴とする前記1項記載の車輌
用灯具。[Claims] 1. A printed circuit board on which an LED is arranged is attached to a base, a transparent reflective member is attached to the LED,
A lens is arranged to surround the reflective member,
The reflecting member has a rectangular shape when viewed from the front, and has a hole approximately in the center into which the LED fits, and the rear side reflects the emitted light emitted from the LED to the side into approximately parallel light rays toward the front. It is formed into a dome-shaped curved surface, and the center hole has a cylindrical part where the LED is inserted, and a square front surface, and the part between the cylindrical shape and the square shape is gradually shaped into a square shape. A vehicle lamp characterized by: 2. The vehicle lamp according to item 1, wherein the reflective member is made of transparent plastic or rubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60028012A JPS61188803A (en) | 1985-02-15 | 1985-02-15 | Lamp apparatus for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60028012A JPS61188803A (en) | 1985-02-15 | 1985-02-15 | Lamp apparatus for vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61188803A JPS61188803A (en) | 1986-08-22 |
JPH0426161B2 true JPH0426161B2 (en) | 1992-05-06 |
Family
ID=12236862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60028012A Granted JPS61188803A (en) | 1985-02-15 | 1985-02-15 | Lamp apparatus for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61188803A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH028335Y2 (en) * | 1985-05-07 | 1990-02-28 | ||
JP4182783B2 (en) * | 2003-03-14 | 2008-11-19 | 豊田合成株式会社 | LED package |
JP5703323B2 (en) * | 2013-03-13 | 2015-04-15 | 株式会社遠藤照明 | LED light distribution lens, LED illumination module including the LED light distribution lens, and lighting fixture including the LED illumination module |
-
1985
- 1985-02-15 JP JP60028012A patent/JPS61188803A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61188803A (en) | 1986-08-22 |
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