JPH035001B2 - - Google Patents
Info
- Publication number
- JPH035001B2 JPH035001B2 JP57112736A JP11273682A JPH035001B2 JP H035001 B2 JPH035001 B2 JP H035001B2 JP 57112736 A JP57112736 A JP 57112736A JP 11273682 A JP11273682 A JP 11273682A JP H035001 B2 JPH035001 B2 JP H035001B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- light
- lamp
- parallel
- light source
- 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
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
【発明の詳細な説明】
<産業上の利用分野>
本発明は自動車用灯具に使用されるレンズに関
するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a lens used in an automobile lamp.
<従来の技術>
ヨーロツパ向けの自動車用灯具は、正面方向だ
けでなく80°横方向への配光規格も満足させなけ
ればならない為、従来では第1図に示す如く、灯
体1の前面に拡散レンズステツプを形成したアウ
ターレンズ2と、フレネルレンズステツプを形成
したインナーレンズ3とを並列に設置し、更に灯
体1内にサイドリフレクタ4を設置させて80°横
方向に対する配光規格を満足させるようにしてい
た。その為に、自動車用灯具を構成する際に部品
点数および組付工数が多くなり、コスト高となる
不具合があつた。しかも、灯具を正面から見た場
合、インナーレンズに形成したフレネルレンズス
テツプのステツプ模様がはつきりと見えてしまう
為、灯具外観の見映えを損う不具合があつた。<Conventional technology> Automotive lamps for Europe must satisfy light distribution standards not only in the front direction but also in the 80° lateral direction. The outer lens 2 with a diffused lens step and the inner lens 3 with a Fresnel lens step are installed in parallel, and a side reflector 4 is installed inside the lamp body 1 to satisfy the light distribution standard in the 80° horizontal direction. I was trying to let him do it. For this reason, when constructing an automobile lamp, the number of parts and the number of assembly steps are increased, resulting in a problem of high cost. Furthermore, when the lamp is viewed from the front, the step pattern of the Fresnel lens step formed on the inner lens is clearly visible, which has the problem of detracting from the external appearance of the lamp.
<発明が解決しようとする課題>
本発明はこの様な従来の不具合に鑑みてなされ
たものであり、灯具に組込んだ際、正面方向の配
光を満足させることが出来ることは勿論、格別に
サイドリフレクタやアウターレンズを使用せずと
も、光源(バルブ)からの光を十分に横方向へ配
光することが出来、従つて80°横方向への配光規
格を満足させる自動車用灯具を製造する場合に、
従来品より部品点数および組付工数を減らし、コ
ストの低減化を図ることが出来、しかも灯具に組
込んで正面から見た時に、内部のフレネルレンズ
ステツプのステツプ模様が見えず、灯具外観の見
映えを向上させることが出来る自動車用灯具のレ
ンズを提供せんとするものである。<Problems to be Solved by the Invention> The present invention has been made in view of such conventional problems, and when incorporated into a lamp, it is possible to satisfy the light distribution in the front direction, and also to achieve an exceptional It is possible to sufficiently distribute the light from the light source (bulb) in the lateral direction without using a side reflector or outer lens, thus creating an automotive lamp that satisfies the 80° lateral light distribution standard. When manufacturing,
It is possible to reduce the number of parts and assembly man-hours compared to conventional products, and to reduce costs.Moreover, when it is assembled into a lamp and viewed from the front, the step pattern of the internal Fresnel lens step is not visible, which improves the external appearance of the lamp. It is an object of the present invention to provide a lens for an automobile lamp that can improve the appearance.
<課題を解決するための手段>
斯る目的を達成する本発明自動車用灯具のレン
ズは、光源と相対する内側面の全面に光源からの
光を光軸と平行となるようにコントロールするフ
レネルレンズステツプを形成し、該フレネルレン
ズステツプと反対側の外側面全面にには光を横方
向に屈折又は拡散させるための直線又は曲線状に
連続した凸条又は凹条に形成した複数のレンズ素
子を一定の間隔部をおいて互いに平行に並列形成
してなる事を特徴としたものである。<Means for Solving the Problem> The lens of the automotive lamp of the present invention that achieves the above object is a Fresnel lens that controls the light from the light source so that it is parallel to the optical axis on the entire inner surface facing the light source. A step is formed, and on the entire outer surface opposite to the Fresnel lens step, a plurality of lens elements are formed in continuous straight or curved convex or concave lines for laterally refracting or diffusing light. It is characterized by being formed parallel to each other with a certain interval between them.
<実施例>
以下、本発明実施の一例を図面に基づいて説明
する。<Example> Hereinafter, an example of implementing the present invention will be described based on the drawings.
灯体1はその内部に光源となるバルブ5を収納
設置し、前面に本発明に係るレンズ6を設置する
と共に、必要に応じてレンズ6の外側位置に適宜
間隔をおいてアウターレンズ2を設置する。尚、
アウターレンズ2には従来品と同様に、レンズ6
を通過した光を適当に拡散又は屈折させるための
レンズステツプ2aを形成してなる。 The lamp body 1 houses and installs a bulb 5 serving as a light source inside thereof, and a lens 6 according to the present invention is installed on the front side, and an outer lens 2 is installed at an appropriate interval outside the lens 6 as necessary. do. still,
As with the conventional product, the outer lens 2 has a lens 6.
A lens step 2a is formed to appropriately diffuse or refract the light that has passed through the lens.
レンズ6は光源(バルブ)5と相対する内側面
の全面に光源(バルブ)5の直射光イ,ロ,ハを
光軸lと平行となるようにコントロールする為の
フレネルレンズステツプ6aを形成し、該フレネ
ルレンズステツプ6aと反対側の外側面全面には
フレネルレンズステツプ6aを通過した光の一部
イ,ハ,を横方向へ屈折又は拡散させるための筋
状のレンズ素子6bを適宜数平行に並列形成して
構成される。 The lens 6 has a Fresnel lens step 6a formed on the entire inner surface facing the light source (bulb) 5 to control the direct light beams A, B, and C of the light source (bulb) 5 so that they are parallel to the optical axis l. On the entire outer surface opposite to the Fresnel lens step 6a, an appropriate number of striped lens elements 6b are arranged in parallel in order to laterally refract or diffuse part of the light that has passed through the Fresnel lens step 6a. are formed in parallel.
フレネルレンズステツプ6aは光源(バルブ)
5からの直射光イ,ロ,ハを光軸lと平行になる
ようにコントロールするものであり、周知のよう
に多数のレンズステツプを同心円状に突出形成し
てなり、その中央部6a′は所用に応じて凸レンズ
様又は凹レンズ様に形成するか、或いはレンズ作
用を持たないノンステツプに形成する。 Fresnel lens step 6a is a light source (bulb)
It controls the direct light beams A, B, and C from 5 so that they are parallel to the optical axis l, and as is well known, it is made up of a number of concentrically protruding lens steps, and the central part 6a' is Depending on the need, it may be formed like a convex lens or a concave lens, or it may be formed into a non-step shape that does not have a lens function.
レンズ素子6bはフレネルレンズステツプ6a
を通過した光の一部イ,ハを更に横方向(例えば
80°横方向)へ屈折又は拡散させる為のものであ
り、直線又は曲線状の筋状、すなわち直線又は曲
線状に連続した凸条又は凹条の筋状に形成してレ
ンズ6の外側面全面に一定の間隔部6cをおいて
互いに平行に並列させて形成するものである。ま
た、このレンズ素子6bはその断面形状を三角プ
リズム状に突出形成する(第2図、第3図の例)
か、略弾頭形状に突出形成する(第4図の例)
か、或いは逆に略弾頭形状に抉り形成し(第5図
の例)、フレネルレンズステツプ6aを通過した
光の一部イ,ハを横方向へ屈折(第2図、第3図
の例)又は拡散(第4,5図の例)させる。 The lens element 6b is a Fresnel lens step 6a.
A part of the light that has passed through A and C is further transversely (e.g.
It is for refraction or diffusion in the 80° lateral direction), and is formed in the form of straight or curved lines, that is, continuous straight or curved lines of protrusions or grooves, and covers the entire outer surface of the lens 6. They are formed parallel to each other with a constant interval 6c between them. Further, this lens element 6b has a protruding cross-sectional shape in the shape of a triangular prism (examples shown in FIGS. 2 and 3).
Or, form a protrusion approximately in the shape of a warhead (example in Figure 4).
Or, conversely, it is hollowed out into a roughly warhead shape (example in Figure 5), and part of the light that has passed through the Fresnel lens step 6a is refracted laterally (examples in Figures 2 and 3). Or diffuse (examples in Figures 4 and 5).
又、各レンズ素子6bの間に形成配置される間
隔部6cは、第2図及び第3図に示した実施例の
如くレンズ作用を持たないノンステツプに形成す
るも、または第4図に示した実施例の如く凸レン
ズ様に形成するも、或いは第5図に示した実施例
の如く凹レンズ様に形成するも自由であり、所用
に応じて採択し得、フレネルレンズステツプ6a
を通過してコントーロールされた光の大部分ロは
この間隔部6cを通過して灯体1の前方へ配光さ
れる。 Furthermore, the spacing portion 6c formed between each lens element 6b may be formed in a non-step shape having no lens function as in the embodiment shown in FIGS. 2 and 3, or may be formed in a non-step shape as shown in FIG. The Fresnel lens step 6a can be formed as a convex lens as in the embodiment, or as a concave lens as in the embodiment shown in FIG.
Most of the controlled light passes through the spacer 6c and is distributed to the front of the lamp body 1.
尚、以上の説明ではバルブ5からの直射光イ,
ロ,ハをコトロールする例を述べたが、反射鏡を
用いて反射鏡からの反射光をコントロールするこ
とも出来ることは容易に理解されるだろう。 In addition, in the above explanation, direct light from the bulb 5,
Although we have described an example of controlling B and C, it will be easily understood that the reflected light from the reflector can also be controlled using a reflector.
<発明の効果>
本発明自動車用灯具のレンズは斯様に、光源と
相対する内側面の全面に光源からの光を光軸と平
行となるようにコントロールするフレネルレンズ
ステツプを形成し、外側面の全面には光を横方向
に屈折又は拡散させるための直線又は曲線状に連
続した凸条又は凹条に形成した複数のレンズ素子
を一定の間隔部をおいて互いに平行に並列形成し
てなるので、灯具に組込んだ際、光源からの大部
分はフレネルレンズステツプでコントロールされ
た後各筋状のレンズ素子の間隔部を通して灯具の
正面方向に配光され、各レンズ素子に入射した光
が灯具の横方向に配光されるようになる。従つ
て、本発明レンズを使用すれば、正面方向の配光
を満足させることが出来ることは勿論、従来の灯
具の様に格別にサイドリフレクタやアウターレン
ズを使用せずとも、光源からの光(バルブからの
直射光又は反射鏡からの反射光)を十分に灯具の
横方向へも配光させて、80°横方向への配光規格
を満足させることが出来、従つて80°横方向への
配光規格を満足させる自動車用灯具を製造するの
に従来品より部品点数および組付工数が少なくて
済み、よつてコストの低減化を図ることが出来
る。<Effects of the Invention> In this way, the lens of the automotive lamp of the present invention has a Fresnel lens step formed on the entire inner surface facing the light source to control the light from the light source so that it is parallel to the optical axis, and a Fresnel lens step on the outer surface. A plurality of lens elements formed in continuous straight or curved convex or concave stripes for refracting or diffusing light in the lateral direction are formed parallel to each other at regular intervals on the entire surface of the lens. Therefore, when incorporated into a lamp, most of the light from the light source is controlled by the Fresnel lens step, and then distributed in the front direction of the lamp through the space between each striped lens element, and the light incident on each lens element is Light is now distributed horizontally on the lamp. Therefore, by using the lens of the present invention, not only can the light distribution in the front direction be satisfied, but also the light from the light source ( Direct light from the bulb or reflected light from the reflector) can be sufficiently distributed in the lateral direction of the lamp to satisfy the 80° lateral light distribution standard. In order to manufacture an automotive lamp that satisfies the light distribution standards of 2008, fewer parts and fewer assembly steps are required than conventional products, and costs can therefore be reduced.
しかも、各レンズ素子でもつて横方向へ配光さ
せるのに、各筋状のレンズ素子に入射される光は
予めフレネルレンズステツプでもつて光軸と平行
にコントロールされているので、各レンズ素子で
のコントロールが容易となり、各レンズ素子の光
学的設計も容易となる。 Moreover, even though each lens element distributes light in the horizontal direction, the light incident on each striped lens element is controlled in advance to be parallel to the optical axis by a Fresnel lens step, so Control becomes easier, and optical design of each lens element becomes easier.
更に、レンズの外側面全面に一定の間隔部をお
いて筋状のレンズ素子を互いに平行に並列形成し
てなるので、灯具に組込んで正面から見た時、内
側面に形成したフレネルレンズステツプのステツ
プ模様がほとんど見えなくなり、灯具外観の見映
えを向上させることが出来る。 Furthermore, since the striped lens elements are formed parallel to each other at regular intervals on the entire outer surface of the lens, when assembled into a lamp and viewed from the front, the Fresnel lens steps formed on the inner surface are visible. The step pattern becomes almost invisible, and the external appearance of the lamp can be improved.
よつて、所期の目的を達成し得る。 Therefore, the intended purpose can be achieved.
第1図は従来例を示す断面図、第2図乃至第5
図は本発明レンズの一実施例を示し、第2図は灯
具に組込んだ状態の断面図、第3図は同レンズの
斜視図、第4図は他の実施例を示すレンズの要部
断面図、第5図は更に他の実施例を示すレンズの
要部断面図である。
図中、1は灯体、5は光源、6はレンズ、6a
はフレネルレンズステツプ、6bはレンズ素子、
6cは間隔部、である。
Figure 1 is a sectional view showing a conventional example, Figures 2 to 5
The figures show one embodiment of the lens of the present invention, Fig. 2 is a sectional view of the lens assembled into a lamp, Fig. 3 is a perspective view of the same lens, and Fig. 4 is a main part of the lens showing another embodiment. 5 is a cross-sectional view of a main part of a lens showing still another embodiment. In the figure, 1 is a lamp body, 5 is a light source, 6 is a lens, 6a
is a Fresnel lens step, 6b is a lens element,
6c is a spacing section.
Claims (1)
を光軸と平行となるようにコントロールするフレ
ネルレンズステツプを形成し、該フレネルレンズ
ステツプと反対側の外側面全面には光を横方向に
屈折又は拡散させるための直線又は曲線状に連続
した凸条又は凹条に形成した複数のレンズ素子を
一定の間隔部をおいて互いに平行に並列形成して
なる事を特徴とする自動車用灯具のレンズ。1 A Fresnel lens step that controls the light from the light source so that it is parallel to the optical axis is formed on the entire inner surface facing the light source, and a Fresnel lens step that controls the light from the light source so that it is parallel to the optical axis is formed on the entire outer surface opposite to the Fresnel lens step. An automobile lamp characterized in that a plurality of lens elements formed in straight or curved continuous convex or concave lines for refraction or diffusion are arranged in parallel with each other at a certain interval. lens.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57112736A JPS593804A (en) | 1982-06-30 | 1982-06-30 | Lens of lamp for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57112736A JPS593804A (en) | 1982-06-30 | 1982-06-30 | Lens of lamp for vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS593804A JPS593804A (en) | 1984-01-10 |
JPH035001B2 true JPH035001B2 (en) | 1991-01-24 |
Family
ID=14594255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57112736A Granted JPS593804A (en) | 1982-06-30 | 1982-06-30 | Lens of lamp for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS593804A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59166303U (en) * | 1983-04-25 | 1984-11-07 | スタンレー電気株式会社 | Vehicle lamp with inner lens |
JPH0731932B2 (en) * | 1987-01-07 | 1995-04-10 | 三菱電機株式会社 | Dielectric porcelain material |
JPH01275466A (en) * | 1988-04-26 | 1989-11-06 | Mitsubishi Mining & Cement Co Ltd | Dielectric ceramic composition |
JPH0637328B2 (en) * | 1988-09-13 | 1994-05-18 | 株式会社住友金属セラミックス | Dielectric porcelain composition |
JP2012069250A (en) * | 2010-09-21 | 2012-04-05 | Stanley Electric Co Ltd | Optical lens for led lamp fitting |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5242081B2 (en) * | 1972-08-01 | 1977-10-22 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5013489U (en) * | 1973-05-29 | 1975-02-12 | ||
JPS5436627Y2 (en) * | 1975-09-19 | 1979-11-05 |
-
1982
- 1982-06-30 JP JP57112736A patent/JPS593804A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5242081B2 (en) * | 1972-08-01 | 1977-10-22 |
Also Published As
Publication number | Publication date |
---|---|
JPS593804A (en) | 1984-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5081564A (en) | Vehicular lighting device | |
US6097549A (en) | Bireflective lens element | |
US6398988B1 (en) | Thin light managing system for directing and distributing light from one or more light sources and method for making optics structures for use in the system | |
US6019492A (en) | Vehicle lamp with a transparent covering | |
GB1598038A (en) | Reflector for lighting and/or indicator devices especially for vehicles | |
JPH03173005A (en) | Reflector and illuminator including the same | |
JPH0366764B2 (en) | ||
US4644455A (en) | Vehicle lamp assembly | |
US5570239A (en) | Directional screen for a lighting fixture and method of making same | |
EP0869312A2 (en) | Vehicle signal lamp | |
US5040103A (en) | Light assembly for wide area illumination | |
US5556194A (en) | Vehicular lamp having glittering appearance | |
JPH035001B2 (en) | ||
KR20220074732A (en) | Lighting device for a motor vehicle and motor vehicle headlamp having such a lighting device | |
JP4196056B2 (en) | Fresnel lens for spotlight | |
US6273594B1 (en) | Vehicle indicator lamp | |
US7061690B1 (en) | Apparatus for establishing substantially uniform distribution of light | |
JPH0810564B2 (en) | Vehicle lighting | |
JPH0140090Y2 (en) | ||
JPS6115522Y2 (en) | ||
JPS6242404Y2 (en) | ||
EP0971166A2 (en) | Motor-vehicle light having segmented fresnel lenses | |
JPH07230706A (en) | Marker lamp for car | |
JPS6144322Y2 (en) | ||
JPH0725508U (en) | Vehicle lighting |