EP0758070A1 - Signalleuchte mit gleichmässigem Erscheinungsbild - Google Patents

Signalleuchte mit gleichmässigem Erscheinungsbild Download PDF

Info

Publication number: EP0758070A1
Authority: EP; European Patent Office
Prior art keywords: light; mirror; front wall; windscreen; signaling
Prior art date: 1995-07-12
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.): Granted

Application number

EP96401546A

Other languages

English (en)

French (fr)

Other versions

EP0758070B1 (de

Inventor

Jean-François Louy

Michel Grebert

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Valeo Vision SAS

Original Assignee

Valeo Vision SAS

Priority date (The priority date 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 date listed.)

1995-07-12

Filing date

1996-07-12

Publication date

1997-02-12

1996-07-12 Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS

1997-02-12 Publication of EP0758070A1 publication Critical patent/EP0758070A1/de

2002-09-18 Application granted granted Critical

2002-09-18 Publication of EP0758070B1 publication Critical patent/EP0758070B1/de

2016-07-12 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/255—Filters

Definitions

the present invention relates generally to the signal lights of motor vehicles, and more particularly to a new signal light having a homogeneous appearance when it is switched off, and for example a so-called "deep” aspect, that is to say that is, giving the observer in front of the fire an illusion of great depth of the fire cavity.
Such a light with a deep appearance is produced, in a conventional manner, by providing on a first element of the light a plurality of relatively wide streaks and of large radius, and by providing on a second element of the light or streaks, also relatively wide and of large radius, oriented substantially perpendicular to the grooves of the mirror.
a drawback of this known type of fire is that, despite the aspect of depth, it has a non-homogeneous appearance due to the presence of the lamp, which is particularly visible.
Signaling lights are also known comprising a windscreen around the lamp, in particular so as to tint and / or deflect the radiation emitted by the lamp. The latter is clearly noticeable.
the first object of the present invention is to overcome these drawbacks and to propose a fire comprising such a windscreen and therefore the external appearance when it is extinguished has good uniformity of appearance over its entire extent, while possibly having an appearance of satisfactory depth where appropriate.
the present invention thus provides a signaling light for a motor vehicle as defined in claim 1.
the present invention therefore also aims to propose a signaling light having the advantages mentioned above and which, in addition, makes it possible, with a given external color when it is off, to generate a light beam of different color. This object is achieved by claims 5 and 6.
a signaling light which mainly comprises a filament lamp (not shown), a mirror 1 defined by a light base and at the bottom of which is formed an opening for the lamp , a windscreen 2 surrounding the lamp and comprising a front face 3, and a sight glass 4 located in front of the mirror 1 and defining with it a cavity.
the part 4 may be an intermediate screen, in which case there is further provided an external indicator, smooth on its two faces, to form a fire called "display fire".
the mirror 1 has a base surface 11 which can be a paraboloid or a surface defined mathematically to produce a desired angular distribution of the light beam, and on this base surface are produced a plurality of ridges 12 which are in this case oriented vertically so as to generate or strengthen the horizontal spread of light. These streaks preferably all have the same width in projection and a large radius of curvature.
the indicator 4 has on its inner face a plurality of ridges 42 oriented perpendicular to the ridges 12 of the mirror, and therefore in this case horizontally, these streaks preferably all having the same width, of the same order of magnitude as the width of the streaks 12, and a large radius of curvature.
the streaks 12 and 42 cooperate to give the extinguished signal light an aspect of depth.
the indicator light in this example has a pink tint, obtained for example by mixing a standard red translucent plastic material with a colorless transparent plastic material in proportions of about 20% -80%.
the translucent windshield 2 has a light passage part 21, for example generally cylindrical, which is produced with a shade chosen so that in combination with the shade of the indicator light 4, the desired shade is obtained for the light beam generated. . More particularly, to obtain an essentially colorless beam, corresponding to a reversing light, the lens 2 is tinted blue. On the other hand, to obtain an amber beam, corresponding to a flashing direction indicator light, the lens is dyed yellow green.
the windshield 2 has a front face 3, visible from the outside, which is designed to merge as much as possible with the appearance of the mirror 1 when the fire is out.
this front face 3 has a concavity similar to that of the mirror, ridges 32 preferably having a width and a curvature close to those of the ridges 12 of the mirror, as well as reflection properties close to those of the mirror 1.
the front face 3 is preferably also.
the streaks 32 also cooperate with the streaks of the indicator to give the fire an aspect of depth as homogeneous as possible when it is extinguished.
this front face 34 masks the color of the part 21 of the windscreen, so that the pink appearance of the extinguished fire, given by the color of the indicator light 4, is practically not disturbed by the color of said part 21, which contrasts quite strongly with that of the indicator light.
This masking of the shade of the windscreen is all the more effective as the base surface 11 chosen for the mirror 1 is distant from an ordinary paraboloid, being for example designed to ensure by itself a large, horizontal spreading and if necessary vertical, light from the lamp.
a traffic light is thus produced which has a pink appearance, different from the color of the beam to be emitted, and which at the same time has an aspect of regular depth over its entire extent, and in particular at the level of the lamp.
the mirror 1 and the front face 3 of the lens are devoid of streaks, and therefore smooth.
streaks may if necessary be provided on a transparent intermediate screen situated between the mirror and the lens on the one hand, and the sight glass on the other hand, these streaks extending perpendicular to those of the sight glass.
FIG. 2 illustrates a first alternative embodiment of the present invention.
the windscreen 2 has an ordinary shape, with a generally cylindrical side wall 21 through which the light coming from the lamp passes in the direction of the mirror, and a generally hemispherical apex 23, as well as means 22 for wedging backwards. from the mirror.
the wall 3 ′ provided with the ridges 32 is in this case produced integrally with the base which defines the mirror 1, by being connected to the bottom region of said mirror for example by a plurality of thin branches 33.
FIG. 3 it is on the top 23 of the windscreen 2 that directly formed the reflective coating, this being produced only on a part of this vertex and arranged for example in strips 34 having for example the same orientation and the same width as the ridges 12 of the mirror 1.
This alternative embodiment is suitable for avoiding the black hole phenomena caused, when the fire is on, if the front wall of the lens completely obscures the light.
the coating formed on the front wall 3 or 3 ′ can be a semi-transparent coating, that is to say having from the outside, when the fire is out, a generally reflective appearance and similar to that of the mirror, but letting pass a substantial proportion of light from the lamp towards the outside when the fire is lit .
the reflective coating of the mirror can be produced with the same technique, the difference being that the semi-transparency properties of this coating are not exploited for the mirror.

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Non-Portable Lighting Devices Or Systems Thereof (AREA)
Optical Elements Other Than Lenses (AREA)
Lighting Device Outwards From Vehicle And Optical Signal (AREA)

EP96401546A 1995-07-12 1996-07-12 Signalleuchte mit gleichmässigem Erscheinungsbild Expired - Lifetime EP0758070B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR9508446		1995-07-12
FR9508446A FR2736705B1 (fr)	1995-07-12	1995-07-12	Feu de signalisation a aspect de profondeur, susceptible d'emettre un faisceau d'une couleur differente de celle de son voyant

Publications (2)

Publication Number	Publication Date
EP0758070A1 true EP0758070A1 (de)	1997-02-12
EP0758070B1 EP0758070B1 (de)	2002-09-18

Family

ID=9480932

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96401546A Expired - Lifetime EP0758070B1 (de)	1995-07-12	1996-07-12	Signalleuchte mit gleichmässigem Erscheinungsbild

Country Status (4)

Country	Link
EP (1)	EP0758070B1 (de)
DE (1)	DE69623708T2 (de)
ES (1)	ES2182957T3 (de)
FR (1)	FR2736705B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19737549A1 (de) *	1996-09-20	1998-03-26	Valeo Vision	Signalleuchte mit einem Spiegel mit gerillter Oberfläche
DE19727982A1 (de) *	1997-07-01	1999-01-07	Hella Kg Hueck & Co	Leuchte für Fahrzeuge

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3607019B2 (ja) *	1996-10-17	2005-01-05	株式会社小糸製作所	車輌用灯具
WO2014106599A1 (en) *	2013-01-07	2014-07-10	Smr Patents Sarl	A light reflector arrangement
ITPD20130352A1 (it) *	2013-12-20	2015-06-21	Automotive Lighting Italia Spa	Dispositivo di illuminazione e/o segnalazione per veicoli

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2108256A (en) *	1981-10-09	1983-05-11	Wipac Dev Limited	Vehicle lamp
GB2196729A (en) *	1986-10-25	1988-05-05	Swf Auto Electric Gmbh	Signal lamp especially for motor vehicles
EP0340328A1 (de) *	1988-05-06	1989-11-08	Hella KG Hueck & Co.	Mehrkammerleuchte für Kraftfahrzeuge
DE4021987A1 (de) *	1989-07-11	1991-02-07	Koito Mfg Co Ltd	Fahrzeugbeleuchtungsvorrichtung

1995
- 1995-07-12 FR FR9508446A patent/FR2736705B1/fr not_active Expired - Lifetime
1996
- 1996-07-12 EP EP96401546A patent/EP0758070B1/de not_active Expired - Lifetime
- 1996-07-12 ES ES96401546T patent/ES2182957T3/es not_active Expired - Lifetime
- 1996-07-12 DE DE69623708T patent/DE69623708T2/de not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2108256A (en) *	1981-10-09	1983-05-11	Wipac Dev Limited	Vehicle lamp
GB2196729A (en) *	1986-10-25	1988-05-05	Swf Auto Electric Gmbh	Signal lamp especially for motor vehicles
EP0340328A1 (de) *	1988-05-06	1989-11-08	Hella KG Hueck & Co.	Mehrkammerleuchte für Kraftfahrzeuge
DE4021987A1 (de) *	1989-07-11	1991-02-07	Koito Mfg Co Ltd	Fahrzeugbeleuchtungsvorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19737549A1 (de) *	1996-09-20	1998-03-26	Valeo Vision	Signalleuchte mit einem Spiegel mit gerillter Oberfläche
DE19727982A1 (de) *	1997-07-01	1999-01-07	Hella Kg Hueck & Co	Leuchte für Fahrzeuge
EP0889284A3 (de) *	1997-07-01	2000-12-20	Hella KG Hueck & Co.	Leuchte für Fahrzeuge

Also Published As

Publication number	Publication date
DE69623708D1 (de)	2002-10-24
DE69623708T2 (de)	2003-06-12
ES2182957T3 (es)	2003-03-16
FR2736705B1 (fr)	1997-10-03
EP0758070B1 (de)	2002-09-18
FR2736705A1 (fr)	1997-01-17

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2001-02-28	17Q	First examination report despatched	Effective date: 20010110
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