JPS6110243Y2 - - Google Patents
Info
- Publication number
- JPS6110243Y2 JPS6110243Y2 JP15542481U JP15542481U JPS6110243Y2 JP S6110243 Y2 JPS6110243 Y2 JP S6110243Y2 JP 15542481 U JP15542481 U JP 15542481U JP 15542481 U JP15542481 U JP 15542481U JP S6110243 Y2 JPS6110243 Y2 JP S6110243Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- inner lens
- lamp
- light
- outer lens
- 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
- 238000005452 bending Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000519695 Ilex integra Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は車輌用灯具に関し、特にアウターレン
ズとインナーレンズとの２枚構成のレンズを持つ
車輌用灯具に関するものである。[Detailed Description of the Invention] The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp having a two-lens structure of an outer lens and an inner lens.
自動車用の信号灯の場合には、ハウジングの内
部に光源バルブを配設すると共に、前面に２枚構
成のレンズ、すなわちアウターレンズとインナー
レンズを被装して灯具を構成している。この場
合、レンズは車体の取付条件、配光特性、灯具の
大さ等の各種の条件に合うようにレンズの形状、
プリズム構成が設計される。例えば、レンズの断
面形状が平坦でなくて、周縁で曲折して、正面部
と傾斜側面部とで形成されているような場合に
は、両者の境界に稜線が出来る。上記のようなレ
ンズを２枚構成に並置させた場合には、正面から
見たレンズの発光具合や配光設計上に前記の稜線
の相対位置が影響してくる。 In the case of a signal light for an automobile, a light source bulb is disposed inside a housing, and a two-lens lens, that is, an outer lens and an inner lens, is mounted on the front surface to form a lamp. In this case, the shape of the lens is adjusted to suit various conditions such as vehicle mounting conditions, light distribution characteristics, and the size of the lamp.
A prism configuration is designed. For example, if the cross-sectional shape of the lens is not flat but curved at the periphery and is formed by a front part and an inclined side part, a ridge line will be formed at the boundary between the two parts. When two lenses as described above are arranged side by side, the relative positions of the ridge lines have an influence on the light emitting condition of the lenses when viewed from the front and the light distribution design.
従来の例を第１図及び第２図を参照して説明す
ると、ハウジングｃの底部にバルブｄを配設し、
前面にアウターレンズａ及びインナーレンズｂの
２枚構成のレンズを被装した灯具に於て、両レン
ズの断面形状は、アウターレンズａは正面部a1と
傾斜側面部a2との稜線Ａをもちインナーレンズｂ
は正面部b1と傾斜側面部b2との稜線Ｂとを持つて
いて、両レンズは小空間を隔てて並行的に配設さ
れている。しかし乍ら、灯具の正面からレンズ面
を見ると、稜線Ａ，Ｂは一致せず、ある間隔だけ
ずれているために、２条の稜線となつて現われて
くる。また点灯時に於ては、２つの稜線による暗
影帯を生ずる。すなわち、第２図の光路図で明ら
かなように、ハウジングｃから反射する反射光
LAのうち、インナーレンズｂの傾斜側面部b2に
入射してアウターレンズａの稜線Ａに入る光は、
微少の屈折を含めてＡ１−Ａ２と分散し、この角
度範囲では暗影帯となる。また、インナーレンズ
ｂにはプリズムを刻成しているので多少分散光と
なり、Ａ１′−Ａ２′の範囲に拡がるが、暗影帯Ａ
１−Ａ２をゼロにすることはできない。更にイン
ナーレンズｂの稜線Ｂに入射する反射光LBは、
アウターレンズａの正面部a1からＢ１−Ｂ２に分
散して暗影帯となる。こゝで前記同様に正面部a1
にはプリズムを刻成しているので、分散角はＢ
１′−Ｂ２′位に拡散されるが、暗影帯Ｂ１−Ｂ２
をゼロにすることはできない。 A conventional example will be explained with reference to FIGS. 1 and 2. A valve d is disposed at the bottom of a housing c,
In a lamp equipped with two lenses, an outer lens a and an inner lens b, on the front surface, the cross-sectional shape of both lenses is such that the outer lens a has a ridge line A between a front part a 1 and an inclined side part a 2 . mochi inner lens b
has a ridge line B consisting of a front part b1 and an inclined side part b2 , and both lenses are arranged in parallel with a small space between them. However, when looking at the lens surface from the front of the lamp, the ridge lines A and B do not match, but are shifted by a certain distance, so they appear as two ridge lines. Furthermore, when the light is turned on, a dark shadow zone is created by two ridge lines. In other words, as is clear from the optical path diagram in Fig. 2, the reflected light reflected from the housing c
Of LA, the light that enters the inclined side surface b2 of the inner lens b and enters the ridge line A of the outer lens a is:
It is dispersed as A1-A2, including a slight refraction, and becomes a dark band in this angular range. In addition, since a prism is engraved on the inner lens b, the light becomes somewhat dispersed and spreads to the range A1'-A2', but the dark band A
1-A2 cannot be zero. Furthermore, the reflected light LB incident on the ridge line B of the inner lens b is
A dark band is distributed from the front part a1 of the outer lens a to B1-B2. Here, as before, the front part a 1
Since a prism is engraved on , the dispersion angle is B.
1'-B2', but the dark band B1-B2
cannot be made zero.
上記のように、点灯時にはＡ１−Ａ２及びＢ１
−Ｂ２の２条の暗影帯となつて視認される。ま
た、配光のためのプリズム設計は、上記２つの稜
線Ａ，Ｂのずれの影響で設計、計算が煩雑となつ
て目的の配光を達成することが困難となる。ま
た、上記のように、２重の稜線のために見栄えも
悪く、かつ配光上の欠陥を持つている。 As mentioned above, when lit, A1-A2 and B1
- It is visible as two dark shadow bands in B2. In addition, when designing a prism for light distribution, the design and calculation become complicated due to the influence of the deviation between the two ridge lines A and B, making it difficult to achieve the desired light distribution. In addition, as described above, the double ridgeline makes it look bad and has defects in light distribution.
上記の事情に鑑み、本考案は、アウターレンズ
とインナーレンズの稜線のずれをなくして合致さ
せることによつて、外観上の見栄えを良好にし、
かつ配光設計を容易にできる車輌用灯具を提供す
ることを目的とする。 In view of the above circumstances, the present invention improves the appearance by eliminating the misalignment of the ridge lines of the outer lens and the inner lens and making them match.
Another object of the present invention is to provide a vehicular lamp that facilitates light distribution design.
以下、本考案に係る車輌用灯具の一例を添付図
面を参照して説明する。第３図及び第４図は本考
案の実施の一例であつて、放物面の反射部Ｐを有
する椀状のハウジング１の底部には、前記放物面
反射部Ｐの中心軸Ｘ−Ｘ上の焦点にフイラメント
２１が位置するようにバルブ２がソケツト５に係
着されている。しかして、２枚構成レンズの内、
外側のアウターレンズ３は正面部３１と傾斜側面
部３２とを稜線Ｏを介して折曲げ形成し、又内側
のインナーレンズ４は正面部４１と傾斜側面部４
２とを稜線Ｉを介して折曲げ形成し、かつ、上記
稜線Ｏ及びＩが灯具正面から見る放物面反射部Ｐ
の外周より内側で中心軸Ｘ−Ｘに並行な同一線上
にあるようにアウターレンズ３とインナーレンズ
４を小間隔をあけて配設し、そのそれぞれの脚部
３３、脚部４３をハウジング１の開口部周縁１１
に接合固定されている。 An example of a vehicle lamp according to the present invention will be described below with reference to the accompanying drawings. 3 and 4 show an example of the implementation of the present invention, in which the bottom of a bowl-shaped housing 1 having a parabolic reflecting portion P has a center axis X-X of the parabolic reflecting portion P. The bulb 2 is attached to the socket 5 so that the filament 21 is located at the upper focal point. However, among the two-element lenses,
The outer lens 3 on the outside is formed by bending a front part 31 and an inclined side part 32 through the ridge line O, and the inner lens 4 on the inside is formed by bending a front part 31 and an inclined side part 4.
2 are bent through the ridge line I, and the ridge lines O and I form a parabolic reflecting part P as seen from the front of the lamp.
The outer lens 3 and the inner lens 4 are arranged at a small interval so that they are on the same line parallel to the central axis X-X inside the outer periphery of the housing 1, and their respective legs 33 and 43 Opening periphery 11
The joint is fixed.
上記のように、アウターレンズ３とインナーレ
ンズ４とが配設されている場合の光路は、バルブ
２のフイラメント２１から放物面反射部Ｐに入射
して反射する反射光Ｌは中心軸Ｘ−Ｘと並行にな
ることは明らかである。上記反射光Ｌがインナー
レンズ４の稜線Ｉを通る光束として考えた場合、
稜線Ｉを透過後直進する光Ｉ１と多少屈折する光
Ｉ２とにより、更にアウターレンズ３の稜線Ｏに
入射する時には直進して出て来る直進光O1と屈
折光Ｏ２に分散する。この場合アウターレンズ３
の傾斜側面部３２にプリズムが刻成されて屈折が
多くなると分散光Ｏ２′となる場合もあるが、上
記のように、稜線Ｏ及びＩが一線上に列設されて
いるので、暗影帯Ｏ１−Ｏ２の一線が発生するだ
けであり、外観上見苦しいことはない。また、レ
ンズ設計上条件が単純であるため配光のプリズム
設計が容易である。この他無点灯時でも、上記の
稜線Ｏ及びＩが一線上にあるためレンズ面の外観
上の見苦しさはない。 As described above, when the outer lens 3 and the inner lens 4 are disposed, the optical path is such that the reflected light L that enters the parabolic reflection part P from the filament 21 of the bulb 2 and is reflected is the central axis X- It is clear that it will be parallel to X. When the reflected light L is considered as a light flux passing through the ridgeline I of the inner lens 4,
After passing through the ridgeline I, the light I1 goes straight and the light I2 is slightly refracted, and when it enters the ridgeline O of the outer lens 3, it is further dispersed into straight light O1 and refracted light O2. In this case, outer lens 3
If a prism is engraved on the inclined side surface 32 of the screen and refraction increases, it may become dispersed light O2', but as mentioned above, since the ridge lines O and I are arranged in a line, the dark band O1 Only a line of -O2 is generated, and the appearance is not unsightly. Furthermore, since the lens design conditions are simple, the prism design for light distribution is easy. In addition, even when the lens is not lit, the ridge lines O and I are on a straight line, so the lens surface does not look unsightly.
上述述べたように、本考案の車輌用灯具は、ハ
ウジングとその前面のアウターレンズとインナー
レンズとにより画成された灯室内に光源バルブを
配置し、前面アウターレンズとインナーレンズと
はその周辺に稜線を介して側面部を折曲げて形成
した車輌用灯具において、前記アウターレンズと
インナーレンズの折曲部分の各稜線を灯具の正面
からみて放物面反射部の外周より内側で中心軸に
平行な同一線上にあるように構成したので、灯具
の見栄えが良好となり、しかも配光のためのレン
ズ設計が容易となる等の効果がある。 As described above, in the vehicle lamp of the present invention, the light source bulb is arranged in the lamp chamber defined by the housing and the outer lens and inner lens on the front side of the housing, and the front outer lens and inner lens are arranged around the housing. In a vehicle lamp formed by bending the side portions along ridge lines, each ridge line of the bent portion of the outer lens and the inner lens is parallel to the central axis inside the outer periphery of the parabolic reflecting portion when viewed from the front of the lamp. Since the lamps are arranged so that they are on the same line, the appearance of the lamp is good, and lens design for light distribution is facilitated.
第１図及び第２図は従来例の灯具を示し、第１
図は断面図、第２図はレンズの稜線附近の光路を
示す図である。第３図及び第４図は本考案の実施
例を示し、第３図は断面図、第４図はレンズの稜
線附近の光路を示す図である。
１……ハウジング、Ｐ……放物面反射部、２…
…バルブ、３……アウターレンズ、４……インナ
ーレンズ、Ｏ，Ｉ……稜線。
Figures 1 and 2 show conventional lamps.
The figure is a sectional view, and FIG. 2 is a diagram showing the optical path near the ridgeline of the lens. 3 and 4 show an embodiment of the present invention, with FIG. 3 being a sectional view and FIG. 4 being a diagram showing the optical path near the ridgeline of the lens. 1...housing, P...parabolic reflection section, 2...
...Bulb, 3...Outer lens, 4...Inner lens, O, I...Ridge line.
Claims (1)
ナーレンズとにより画成された灯室内に光源バル
ブを配置し、前記アウターレンズとインナーレン
ズとはその周辺に稜線を介して側面部を折曲げて
形成した車輌用灯具において、前記アウターレン
ズとインナーレンズの折曲部分の各稜線を正面か
ら見て放物面反射部の外周より内側で、かつ、中
心軸に平行な同一線上にあるように構成したこと
を特徴とする車輌用灯具。 For vehicles, a light source bulb is arranged in a lamp chamber defined by a housing and an outer lens and an inner lens on the front thereof, and the outer lens and inner lens are formed by bending a side part through a ridge line around the outer lens and the inner lens. The lamp is characterized in that each ridgeline of the bent portion of the outer lens and the inner lens is configured to be located inside the outer periphery of the parabolic reflecting portion and on the same line parallel to the central axis when viewed from the front. Lighting equipment for vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15542481U JPS5860804U (en) | 1981-10-21 | 1981-10-21 | Vehicle lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15542481U JPS5860804U (en) | 1981-10-21 | 1981-10-21 | Vehicle lights |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5860804U JPS5860804U (en) | 1983-04-23 |
| JPS6110243Y2 true JPS6110243Y2 (en) | 1986-04-02 |
Family
ID=29948002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15542481U Granted JPS5860804U (en) | 1981-10-21 | 1981-10-21 | Vehicle lights |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5860804U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4627246B2 (en) * | 2005-10-27 | 2011-02-09 | スタンレー電気株式会社 | Vehicle lighting |
-
1981
- 1981-10-21 JP JP15542481U patent/JPS5860804U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5860804U (en) | 1983-04-23 |
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