JPS58209802A - Downward headlight for vehicle - Google Patents
Downward headlight for vehicleInfo
- Publication number
- JPS58209802A JPS58209802A JP58084271A JP8427183A JPS58209802A JP S58209802 A JPS58209802 A JP S58209802A JP 58084271 A JP58084271 A JP 58084271A JP 8427183 A JP8427183 A JP 8427183A JP S58209802 A JPS58209802 A JP S58209802A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- reflector
- longitudinal section
- focal point
- prism
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/265—Composite lenses; Lenses with a patch-like shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/28—Cover glass
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、シェル形反射器が設けられており、この反射
器の内側反射面が、軸線方向長手断面においてそれぞれ
だ円の一部を形成しており、これらだ円の頂点および所
属の焦点が一致しており、力）つこれらだ円の離心率が
、軸線方向垂直長手断面力）ら軸線方向水平長手断面の
方に増大しており、また反射器の軸線方向垂直長手断面
に生じるだ円の第２焦点の垂直面内に配Ｎされかつ明暗
境界を作る調光器、および反射器の軸線方向水平長手断
面内に生じるだ円の第２焦点に配置された収束凸レンズ
が設けられており、このレンズの底面が長方形である、
車両用下向き前照灯に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that a shell-shaped reflector is provided, and the inner reflective surfaces of the reflector each form a part of an ellipse in an axial longitudinal section, and The vertices and the focal points of the ellipses coincide, and the eccentricity of these ellipses increases from the axial vertical longitudinal section force) to the axial horizontal longitudinal section, and the axial direction of the reflector A dimmer that is arranged in the vertical plane of the second focal point of the ellipse that occurs in the vertical longitudinal section and creates a bright/dark boundary, and a dimmer that is arranged in the second focal point of the ellipse that occurs in the horizontal longitudinal section in the axial direction of the reflector. A converging convex lens is provided, and the bottom surface of this lens is rectangular.
Related to downward headlights for vehicles.
ドイツ連邦共和国特許出願公開第２４４６５２１号明細
書には、反射器を使用した車両用下向き前照灯が記載さ
れており、この反射器は、軸線方向長手断面においてそ
れぞれだ円の一部をなしており、これらだ円の頂点およ
び所属の焦点は一致しており、かつこれらだ円の離心率
は、軸線方向垂直長手断面から軸線方向水平長手断面の
方に増大している。反射器の軸線方向垂直長手断面に生
じるだ円の第２焦点の垂直平面内に調光器が配置されて
おり、この調光器の上縁が明暗境界を作る。反射器の軸
線方向水平長手断面に生じるだ円の第２焦点には収束凸
レンズが配置されており、このレンズの焦点面は、反射
器の軸線方向垂直断面に生じるだ円の焦点にある。この
ような前照灯は、垂直方向に強力に収束した光を発生す
るが、この光は水平方向には散乱して生じる。し力）し
横方向散乱はいぜんとしてわずかであり、例えば交通標
識のような側方道路縁にある物体は十分に照明されない
。German Patent Application No. 2 446 521 describes a downward-directing headlamp for a vehicle using reflectors, which reflectors each form part of an ellipse in longitudinal section in the axial direction. The vertices and associated foci of the ellipses coincide, and the eccentricity of the ellipses increases from the axial vertical longitudinal section to the axial horizontal longitudinal section. A dimmer is arranged in the vertical plane of the second focal point of the ellipse occurring in the axial vertical longitudinal section of the reflector, the upper edge of this dimmer forming a bright/dark boundary. A converging convex lens is arranged at the second focal point of the ellipse occurring in the axial horizontal longitudinal section of the reflector, the focal plane of this lens being at the focal point of the ellipse occurring in the axial vertical longitudinal section of the reflector. Such headlights produce light that is strongly focused in the vertical direction, but this light is scattered in the horizontal direction. However, the lateral scattering is still small and objects on the side road edges, such as traffic signs, are not well illuminated.
これらの欠点？除去するため、ドイツ連邦共和国特許出
願公開第２４２５３３６号明細書には、すでに次のこと
が提案されている。すなわち収束凸レンズと明暗境界を
作る調光器との間において反射器軸線の横および上にそ
れぞれ反射器の一部が配置されており、それにより側部
範囲を一層強力に照明するようにする。調光器と凸レン
ズの間に配置された側方反射器部分が、主反射器に対し
て正確かつ確実に取付けるため多くの費用を要するとい
うことは、この構造の前照灯において不利である。These drawbacks? In order to eliminate this, the following has already been proposed in DE 24 25 336 A1. That is, between the converging convex lens and the dimmer that creates the bright/dark boundary, portions of the reflector are arranged respectively laterally and above the reflector axis, thereby providing more intense illumination of the lateral areas. It is a disadvantage in a headlamp of this construction that the side reflector parts, which are arranged between the dimmer and the convex lens, require a high degree of expense to be mounted accurately and securely to the main reflector.
ざらに収束レンズと調光器の間の距離は、実際には主反
射器の水平および垂直長手断面に生じるだ内部分の間の
離心率の相違によってあらかじめ決められている。実際
にはこの距離は、十分大きな反射面を得るために知力）
すぎる。The distance between the roughly converging lens and the dimmer is actually predetermined by the difference in eccentricity between the inner portions occurring in the horizontal and vertical longitudinal sections of the main reflector. In practice this distance is required to obtain a large enough reflective surface)
Too much.
本発明の課題は、道路縁と車両直前の範囲を一層良好に
照明するように、前記公知の前照灯の光分布を改善する
ことにある。ざらに前照灯の構造を改善し、側方道路照
明を行う部品を一層簡単にかつ一層大きな許容公差で作
り力）つ取付けること ５−
ができるようにする。The object of the invention is to improve the light distribution of the known headlamp in order to better illuminate the road edge and the area directly in front of the vehicle. Generally, the structure of headlamps is improved so that parts providing side road lighting can be manufactured and installed more easily and with greater tolerances.
本発明によれば、この課題は次のようにして解決される
。すなわちレンズの底面が、縦に置かれた長方形であり
、この長方形の辺の比が１．２ ： １よりも大きく、
またレンズの側方にプリズム板が配置されており、この
プリズム板が、白熱電球から直接用た光を垂直方向に収
束し、かつ全体としテ下方に転向し、かつ水平方向には
レンズ軸線の方へ転向する。According to the present invention, this problem is solved as follows. In other words, the bottom surface of the lens is a rectangle placed vertically, and the ratio of the sides of this rectangle is greater than 1.2:1.
In addition, a prism plate is arranged on the side of the lens, and this prism plate converges the light directly used from the incandescent light bulb in the vertical direction, deflects the light as a whole downward, and horizontally focuses the light directly on the lens axis. turn towards
凸レンズを狭く構成することにより、プリズム板を幅広
く構成することができるので、プリズム板に一層大きな
立体角の直接光が当たる。凸レンズに並べてプリズム板
を配置すれば、公知技術に対してなお別の利点が得られ
る。すなわち光の転向の他になお信号面４の機能も有す
る照明された光学的じゃへい板が大きくなる。前照灯は
、公知のように車両運転者に見易いように車両前方を照
明する役割だけでなく、ざらに対向相手に車両の接近を
知らせる信号灯の機能も有する。By configuring the convex lens narrowly, the prism plate can be configured to be wide, so that direct light of a larger solid angle hits the prism plate. The arrangement of the prism plate next to the convex lens provides yet further advantages over the prior art. This means that the illuminated optical shield, which in addition to light deflection also has the function of signal plane 4, is enlarged. As is well known, headlights not only have the role of illuminating the front of the vehicle so that the vehicle driver can easily see them, but also have the function of a signal light to notify oncoming vehicles of the approach of the vehicle.
ざらに収束レンズを平凸収束レンズとして構成 ６−
し、かつこのレンズの平らな面を、少なくともほぼ反射
器反射面の軸線方向水平断面に生じるだ内部分の外側焦
点に配置することは有利である。それによりレンズは特
に狭く構成でき、力）つ調光器縁の結像は、レンズの中
央範囲に行われ、それにより明確な結像が行われる。It is advantageous to configure the roughly converging lens as a plano-convex converging lens and to arrange the flat surface of this lens at least approximately at the outer focal point of the radial portion occurring in the axial horizontal section of the reflector reflection surface. be. As a result, the lens can be configured particularly narrowly, and the imaging of the dimmer edge takes place in the central area of the lens, which results in clear imaging.
高温のため、収束凸レンズをガラスから構成すると有利
とわかった。プリズム板は、簡単かつ正確に製造できる
ので、プラスチックで作ると有利である。ざらに凸レン
ズの両側にプリズム板を配置すると有利であり、それに
より車両の前の光分布が、必要かつ有利である限り対称
であるようにする。光が直接白熱電球からレンズの両側
に配置されたプリズム板にできるだけ直角に当たるよう
にするため、これらプリズム板は互いに鈍角をなしてい
る。ざらに両方のプリズム板を一体に構成し、かつレン
ズをプリズム板の中央開口に接着することは有利である
。Due to the high temperatures, it has been found advantageous to construct the converging convex lens from glass. The prism plate is advantageously made of plastic, since it can be manufactured easily and precisely. It is advantageous to arrange prism plates on both sides of the roughly convex lens, so that the light distribution in front of the vehicle is as symmetrical as is necessary and advantageous. The prism plates are at obtuse angles to each other in order to ensure that the light falls directly from the incandescent bulb onto the prism plates placed on either side of the lens at as perpendicular a angle as possible. It is advantageous to roughly construct both prism plates in one piece and to glue the lens into the central opening of the prism plates.
本発明の実施例を以下図面によって説明する。Embodiments of the present invention will be described below with reference to the drawings.
第１図に、半だ円を形成する反射器１が示ぎれており、
この半だ円は、半分の軸ａおよびｂと内側焦点Ｐおよび
外側焦点Ｆ１を有する。焦点Ｆｌの垂直面内に調光器２
が配置されており、この調光器の上側の大体において水
平に延びた縁は明暗境界を形成している。FIG. 1 shows a reflector 1 forming a semi-ellipse,
This semi-ellipse has half axes a and b and an inner focus P and an outer focus F1. Dimmer 2 in the vertical plane of the focal point Fl
is arranged, and the upper, generally horizontally extending edge of this dimmer forms a bright/dark boundary.
第２図には、半分の軸ａｌおよび１）１と焦点Ｆ′ｆｔ
有する反射器ｌの水平断面が示されている。半分の軸ａ
ｌとｂｌは、垂直断面の半分の軸ａとｂよりも長くなっ
ている。反射器の水平断面と垂直断面の間の断面は、同
様に互いに連続的に移行する半だ円をなしている。すべ
てのだ円は、同じ焦点Ｆおよび同じ頂点Ｓを有する。反
射器ｌの軸線方向水平長手断面に生じるだ円の外側の第
２焦点Ｆ２に、収束凸レンズ３が配置されている。この
収束レンズの焦点距離は、ＩＦＩとＦ２の間の距離に相
当する。FIG. 2 shows the half axes al and 1) 1 and the focal point F'ft
A horizontal section through a reflector l is shown. half axis a
l and bl are longer than the half axes a and b of the vertical section. The cross-sections between the horizontal and vertical cross-sections of the reflector likewise form semi-ellipses that transition continuously into one another. All ellipses have the same focus F and the same vertex S. A converging convex lens 3 is arranged at a second focal point F2 on the outside of the ellipse formed in the axial horizontal longitudinal section of the reflector l. The focal length of this converging lens corresponds to the distance between IFI and F2.
収束凸レンズ３の底面４は、長方形になっており、縦に
置かれた長方形を形成するようになっており、この長方
形の辺の比は１．２ ： １より大きい。The bottom surface 4 of the converging convex lens 3 is rectangular and forms a vertically placed rectangle, the ratio of the sides of this rectangle being greater than 1.2:1.
レンズの側面５と６にはつばぎのようにプリズム板７と
８が配置されており、これらプリズム板は、焦点Ｆに配
置された白熱電球から直接用た光を転向する。光線９は
、プリズム１０によりほぼ平行に収束され、力）つすべ
ての光束は道路の方に向けられる。垂直面において光線
１１は、同時に反射器１の中心軸線Ｘでもある前照灯の
中心軸線Ｘの方にプリズム１２によって転向される。し
かし光線１１は、転向後にもまだ発散するので、大きな
側方散乱が生じる。つばぎのように構成されたプリズム
板７と８は一体に形成されている。その際レンズ３は、
一体フＩＪズム板の中央開口に挿入されている。On the sides 5 and 6 of the lens are arranged prism plates 7 and 8, which deflect the light directly from the incandescent bulb placed at the focal point F. The light rays 9 are focused approximately parallel by the prism 10 and the entire beam is directed towards the road. In the vertical plane, the light ray 11 is deflected by the prism 12 towards the central axis X of the headlamp, which is at the same time the central axis X of the reflector 1. However, the light ray 11 still diverges after turning, so that a large side scattering occurs. The prism plates 7 and 8, which are configured like wings, are integrally formed. At that time, lens 3 is
It is inserted into the central opening of the integrated IJ system board.
第１図は、本発明による前照灯の軸線方向垂直長手断面
図、第２図は、同じく軸線方向水平長手断面図、第３図
は、Ａ−Ａ線に沿った断面図である。
１・・・反射器、２・・・調光器、３．・・・レンズ、
７．８・・・プリズム板
９−FIG. 1 is an axial vertical longitudinal sectional view of a headlamp according to the present invention, FIG. 2 is an axial horizontal longitudinal sectional view, and FIG. 3 is a sectional view taken along line A--A. 1...Reflector, 2...Dimmer, 3. ···lens,
7.8... Prism plate 9-
Claims (8)
内側反射面が、軸線方向長手断面においてそれぞれだ円
の一部を形成しており、これらだ円の頂点および所属の
焦点が一致しており、力）つこれらだ円の離心率が、軸
線方向垂直長手断面から軸線方向水平長手断面の方に増
大しており、また反射器の軸線方向垂直長手断面に生じ
るだ円の第２焦点の垂直面内に配置され力）つ明暗境界
を作る調光器、および反射器の軸線方向水平長手断面内
に生じるだ円の第２焦点に配置された収束凸レンズが設
けられており、このレンズの底面が長方形である、車両
用下向き前照灯において、 レンズの底面（４）が、縦に置かれた長方形であり、こ
の長方形の辺の比が１．２ ： １よりも大きく、また
レンズ（３〕の側方にプリズム板（７，８〕が配置され
ており、このプリズム板が、白熱電球から直接量た光（
１０，１１）を垂直方向に収束 １− し、ｉＪ）つ全体として下方に転向し、力）っ水平方向
にはレンズ軸線（Ｘ）の方へ転向することな特徴とする
、車両用下向き前照灯。(1) A shell-shaped reflector is provided, the inner reflective surfaces of which in axial longitudinal section each form part of an ellipse, the vertices of which and the associated focal point being aligned. The eccentricity of these ellipses increases from the axial vertical longitudinal section to the axial horizontal longitudinal section, and the eccentricity of the ellipses occurring in the axial vertical longitudinal section of the reflector A dimmer is arranged in the vertical plane of the focal point and creates a bright/dark boundary, and a converging convex lens is arranged at the second focal point of the ellipse formed in the axial horizontal longitudinal section of the reflector. In a downward-facing headlamp for a vehicle in which the bottom surface of the lens is rectangular, the bottom surface (4) of the lens is a vertically placed rectangle, and the ratio of the sides of this rectangle is greater than 1.2:1, and A prism plate (7, 8) is placed on the side of the lens (3), and this prism plate receives the light (7, 8) directly from the incandescent bulb.
10, 11) is vertically converged, iJ) is turned downward as a whole, and force) is turned horizontally towards the lens axis (X). Lighting.
ており、力）っこのレンズの平らな面が、少なくともほ
ぼ反射器（１）反射面の軸線方向水平断面に生じるだ内
部分の外側焦点（Ｆ２）にある、特許請求の範囲第１項
記載の前照灯。(2) The converging lens (3) is configured as a plano-convex lens, and the flat surface of this lens is at least approximately outside the radial portion of the reflector (1) that occurs in the axial horizontal section of the reflective surface. 2. A headlamp according to claim 1, which is at the focal point (F2).
ズム板（７，８）がプラスチック力）ら成る、特許請求
の範囲第１項または第２項記載゛の前照灯。(3) The headlamp according to claim 1 or 2, wherein the converging convex lens (3) is made of glass, and the prism plates (7, 8) are made of plastic.
，８）が配置されている、特許請求の範囲第１項ないし
第３項の１つに記載の前照灯。(4) Prism plates (7) on both sides (5, 6) of the lens (3)
, 8) are arranged, the headlamp according to one of claims 1 to 3.
板（７，８）が、互いに鈍角をなしている、特許請求の
範囲第１項ないし第４項の１つに記載の前照灯。(5) Len 7: The headlight according to one of claims 1 to 4, wherein the prism plates (7, 8) arranged on both sides of (3) form an obtuse angle with each other. light.
おり、かつレンズ（３）が、プリズム板（７、２− ８）の中央開口内に接着されている、特許請求の範囲第
１項ないし第５項の１つに記載の前照灯。(6) Claims in which both prism plates (7, 8) are integrally formed and the lens (3) is glued within the central opening of the prism plates (7, 2-8). Headlamp according to one of clauses 1 to 5.
わん曲している、特許請求の範囲第１項ないし第６項の
１つに記載の前照灯。(7) A headlamp according to one of claims 1 to 6, in which the prism plates (7, 8) are curved concavely when viewed from the reflector.
、この円筒部分の中心が反射器（１）の焦点ＣＦ）であ
る、特許請求の範囲第７項記載の前照灯。(8) A headlamp according to claim 7, wherein the prism plates (7, 8) form a cylindrical part, the center of which is the focal point CF of the reflector (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823218703 DE3218703A1 (en) | 1982-05-18 | 1982-05-18 | Dimmed vehicle headlights |
| DE32187033 | 1982-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58209802A true JPS58209802A (en) | 1983-12-06 |
Family
ID=6163938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58084271A Pending JPS58209802A (en) | 1982-05-18 | 1983-05-16 | Downward headlight for vehicle |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0094519B1 (en) |
| JP (1) | JPS58209802A (en) |
| AU (1) | AU1448783A (en) |
| DD (1) | DD209890A5 (en) |
| DE (1) | DE3218703A1 (en) |
| ES (1) | ES279983Y (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3525041C2 (en) * | 1985-07-13 | 1994-06-16 | Bosch Gmbh Robert | Low beam or fog lights for motor vehicles |
| DE3529546C1 (en) * | 1985-08-17 | 1987-02-05 | Hella Kg Hueck & Co | Dimmed vehicle headlights with an ellipsoidal reflector |
| US4857794A (en) * | 1986-09-03 | 1989-08-15 | Koito Seisakusho Co., Ltd. | Single-filament headlamp unit capable of throwing both upper and lower beams |
| DE3718642C1 (en) * | 1987-06-04 | 1988-10-20 | Friemann & Wolf Gmbh | Dimmed vehicle headlights for mine vehicles |
| DE3942310A1 (en) * | 1989-12-21 | 1991-06-27 | Bayerische Motoren Werke Ag | MOTOR VEHICLE HEADLIGHT |
| DE4224865A1 (en) * | 1992-07-28 | 1994-02-03 | Bayerische Motoren Werke Ag | Motor vehicle headlights |
| DE59813700D1 (en) | 1997-07-10 | 2006-10-12 | Automotive Lighting Reutlingen | Headlights for vehicles |
| DE19740315C1 (en) * | 1997-09-13 | 1999-02-18 | Bosch Gmbh Robert | Motor vehicle headlamp with lens arrangement |
| FR2770618B1 (en) * | 1997-11-04 | 2000-02-04 | Valeo Vision | ELLIPTICAL SPOTLIGHT WITH ENLARGED LIGHTING RANGE |
| DE19813597A1 (en) * | 1998-03-27 | 1999-09-30 | Volkswagen Ag | Automobile headlamp using projection principle |
| DE19814479B4 (en) * | 1998-04-01 | 2008-04-30 | Automotive Lighting Reutlingen Gmbh | Vehicle headlights according to the projection principle |
| DE19814480B4 (en) | 1998-04-01 | 2006-07-20 | Automotive Lighting Reutlingen Gmbh | Headlamp for vehicles according to the projection principle |
| DE19841557B4 (en) * | 1998-09-11 | 2008-01-10 | Automotive Lighting Reutlingen Gmbh | vehicle headlights |
| CN101266031B (en) * | 2008-05-13 | 2011-04-06 | 郭廷麟 | Headlight for motor-driven vehicle |
| JP6199104B2 (en) * | 2013-07-19 | 2017-09-20 | 株式会社小糸製作所 | Vehicle lighting |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1353573A (en) * | 1919-06-17 | 1920-09-21 | Esmarian Garabed | Demountable rim |
| US1393573A (en) * | 1920-10-21 | 1921-10-11 | John A Ritter | Headlamp |
| GB320693A (en) * | 1929-04-08 | 1929-10-24 | Sidney Philip Holloway | An improvement in glare free headlamps for motor cars, lorries and similar vehicles |
| DE6913127U (en) * | 1968-04-15 | 1969-08-07 | Sylvania Electric Prod | MOTOR VEHICLE HEADLIGHTS |
| GB1463313A (en) * | 1973-05-25 | 1977-02-02 | Lucas Electrical Ltd | Vehicle lamp assembly |
| GB1476297A (en) * | 1973-09-29 | 1977-06-10 | Lucas Electrical Ltd | Motor vehicle lamp assemblies |
-
1982
- 1982-05-18 DE DE19823218703 patent/DE3218703A1/en not_active Withdrawn
-
1983
- 1983-04-20 EP EP83103844A patent/EP0094519B1/en not_active Expired
- 1983-05-11 DD DD83250846A patent/DD209890A5/en unknown
- 1983-05-12 AU AU14487/83A patent/AU1448783A/en not_active Abandoned
- 1983-05-16 JP JP58084271A patent/JPS58209802A/en active Pending
- 1983-05-17 ES ES1983279983U patent/ES279983Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3218703A1 (en) | 1983-11-24 |
| EP0094519A2 (en) | 1983-11-23 |
| ES279983U (en) | 1984-12-16 |
| EP0094519A3 (en) | 1984-11-28 |
| EP0094519B1 (en) | 1986-10-15 |
| DD209890A5 (en) | 1984-05-23 |
| AU1448783A (en) | 1983-11-24 |
| ES279983Y (en) | 1985-06-16 |
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