EP0632228A1 - Stylistisches oder optisches Element- mit glänzendem Aussehen und neutraler Farbe- für Kfz-Beleuchtungs- oder Anzeige-Scheinwerfer - Google Patents
Stylistisches oder optisches Element- mit glänzendem Aussehen und neutraler Farbe- für Kfz-Beleuchtungs- oder Anzeige-Scheinwerfer Download PDFInfo
- Publication number
- EP0632228A1 EP0632228A1 EP94401475A EP94401475A EP0632228A1 EP 0632228 A1 EP0632228 A1 EP 0632228A1 EP 94401475 A EP94401475 A EP 94401475A EP 94401475 A EP94401475 A EP 94401475A EP 0632228 A1 EP0632228 A1 EP 0632228A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- element according
- glass
- light
- indicator
- plastic material
- 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.)
- Granted
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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
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
-
- 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
-
- 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
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
Definitions
- the present invention relates to a new aspect and / or optical processing element for a lighting or signaling device of a motor vehicle.
- a headlight type housing for a motor vehicle generally comprises a housing closed at the front by a window and at the rear by a cap.
- This box houses one or more mirrors each carrying a lamp.
- This mirror can be tilted horizontally and / or vertically to vary the orientation of the beam for adjustment purposes.
- it is however necessary to leave between the anterior edge of the lower cheek (and if necessary of the upper cheek) of the mirror a relatively large space which, when the projector is off, reveals a dark area between the lower cheek of the mirror and the glass, both of which are generally shiny and neutral in color.
- This space is masked in a known manner by placing a painted or varnished or metallized cover or trim between the reflector and the glass having an appearance similar to that of the mirror, the best result being obtained with metallization.
- This metallization is generally carried out by aluminizing, which gives the part an appearance close to that of the reflector.
- the surface of the hubcap is then fragile and can be easily scratched or scratched, or allow fingerprints to appear, during its handling.
- the cost of a varnishing or aluminizing is high.
- this extension defined with the window base a difficult to clean cavity, in which dirt comes accumulate. This accumulation creates a completely horizontal aesthetic undesirable horizontal area between the body and the glass from the foot of the glass.
- the closing light of which comprises several illuminating surfaces located at the right of several cavities each housing one or more lamps, one very generally notes, when the lights are off, an aspect of the non-homogeneous indicator in the transition region between these illuminating surfaces, caused in particular by the presence of the partitions between these cavities and by arrangements for fixing the sight glass on these partitions.
- the present invention aims in particular to overcome these drawbacks by proposing an element for a lighting or signaling device for a motor vehicle which generally makes it possible to obtain good uniformity in the appearance of headlamps or blocks of signaling lights when 'they are extinct, while being very fragile and extremely economical to manufacture.
- the subject of the present invention is an element for a motor vehicle lighting or signaling device, characterized in that it consists at least partially of a transparent plastic material charged with light reflecting particles.
- the light-reflecting particles are preferably made of glitter of shiny, opaque and neutral-tinted metal, such as aluminum.
- the element constitutes a projector glass. At least part of a peripheral region of the glass, not crossed by the beam of the projector, is made of transparent plastic material loaded with light-reflecting particles, the rest of the glass being made of transparent plastic material which is not charged.
- this part of the peripheral region of the ice is superimposed on a foot of ice and preferably located on the inner side of the foot of ice.
- the element advantageously comprises the same plastic material for the charged and uncharged parts.
- the element constitutes an intermediate masking element for a projector, extending between a front edge of a mirror of the projector and a lens of the projector and distinct from the mirror and the lens.
- It is preferably made entirely of transparent plastic material loaded with reflective particles.
- the element constitutes an indicator for at least one signaling light. It has a low density of reflective particles in an area of the light forming the illuminating surface of the light (s), and a high density of particles in an area of the indicator not forming an illuminating surface.
- the indicator element comprises a high density of particles in an area of the indicator located at the transition between two adjacent illuminating surfaces.
- the transparent plastic can in this case be colored.
- the element constitutes a reflector for a traffic light with a large angular range of emission.
- the invention also provides projectors and signaling lights equipped with elements as defined above.
- a window 1 for a motor vehicle headlamp is made of transparent plastic and comprises a generally flat part 2 for the passage of light and a re-entrant peripheral foot of glass 3 intended for mounting the glass on the edge of the front opening of a housing (not shown).
- Part 2 of the glass is intended to be placed at a certain distance, of the order of one to a few centimeters, in front of the front edge of a reflector (not shown), to allow adjustment of the inclination of this last and therefore the orientation of the generated beam.
- the window 1 comprises in this case, in one piece, an extension 4 upwards, intended to ensure a generally smooth transition with the part of the vehicle body (generally the front cover) located at the - above the projector.
- the extension 4 and the adjacent part of the foot of ice 3 define a practically inaccessible space which, as indicated above, becomes dirty over time.
- the extension 4 is made of transparent plastic, identical to that of the rest of the glass, but loaded with light-reflecting particles.
- the extension 4 has, when the projector is turned off, a very close to that of the rest of the ice, that is to say shiny and neutral, thanks to the reflection of light on the particles in random directions.
- the fouling of the aforementioned cavity is hidden from the outside because the reflecting particles have clouded the extension 4.
- the glass equipped with its extension can be produced either by a single molding step with two materials, one for the optical part 2 and the base 3 and the other, preferably identical but loaded with the particles, for the extension 4 , or by molding in two successive stages with the two materials.
- FIG 2 there is shown a glass which differs from that of Figure 1 in that the upper region of the glass base 3 is also made of transparent plastic loaded with reflective particles.
- the appearance of the switched off projector is also improved when there is a large space between the upper edge of the extension 4 and the surrounding bodywork.
- the extension 4 is made of transparent plastic material not loaded with reflecting particles, and only the upper part of the glass base 3 is loaded with reflecting particles.
- This embodiment may prove to be appropriate when the cavity defined between the upper part of the foot of the window 3 and the extension 4 is well sheltered and not very subject to fouling. In this case, the upper part of the foot of the glass ensures a certain homogeneity of appearance of the region of the projector which can be observed through the extension 4.
- FIG. 4 there is shown a window which does not have an extension 4.
- the entire base of the window 3 is made of plastic loaded with reflective particles.
- We obtain in this way a much more homogeneous appearance of the projector turned off in the transition region between the central part 2 of the lens and the front edge of the reflector. More precisely, when the projector is observed from a bird's-eye view, the dark parts situated below the lower part of the ice-cream foot are masked by the ice-cream foot, and at the same time the latter has a surface appearance similar to that of the lower cheek of the reflector located nearby.
- the plastic material used for both the transparent parts and those loaded with reflective particles is preferably that which is conventionally used for plastic lenses.
- the weld between the parts of the glass molded successively is of good quality.
- the choice between making the glass by bi-material molding or by molding in two stages will be made according to the nature of the part to be produced.
- the reflective particles are preferably aluminum flakes. Their size can vary within fairly wide limits.
- the form factor (ratio between the largest dimension and the smallest dimension) of the flakes can also vary widely, as can the density of the flakes.
- a loaded plastic material according to the invention makes it possible to eliminate the problems of brittleness, and generally of surface defect, of the varnished, aluminized or painted parts of the prior art, the particles reflective being embedded in the material.
- the cost price of parts produced according to the invention is significantly lower than that of a varnishing or aluminizing.
- the masking of the space located between the reflector and the central part 2 of the lens 1 is carried out starting from an ordinary lens made of plastic or even glass, and by overmolding on the pre-existing ice a thick layer 5 of transparent plastic material charged with reflective particles.
- this layer is produced on the inside face (turned downwards) of the upper part of the ice cream base 3.
- This layer can also be produced on the outside face of the ice cream base. It is also of course possible to coat the entire base of ice 3 with this layer loaded with reflective particles.
- FIG. 6 Another embodiment, illustrated in FIG. 6, consists in producing on a pre-existing glass preferably made of plastic a peripheral skirt 6, extending at a certain distance from the glass base 3 inside of it , this skirt playing the role of transition mask between the glass and the front edges of the reflector. In this embodiment, these edges penetrate into the peripheral channel defined between the glass base 3 and the skirt 6, without being in contact with these elements, so as to preserve a possibility of movement when beam adjustments are made.
- the skirt 6 is preferably produced by overmolding, the assembly obtained being in one piece.
- a hubcap 7 is conventionally used per se, again intended to minimize the discontinuities in appearance between the glass and the front edges of the metallized reflector.
- This hubcap conventionally has in itself a section in the general shape of a "V”, and is placed in the transition region between glass and mirror. According to the invention, it is produced entirely by injection molding of a transparent plastic material loaded with reflective particles.
- FIG. 8 illustrates an application of the present invention to the production of an indicator light 10 for a block of signaling lights, in particular at the rear of a vehicle.
- the block of signaling lights comprises several lamps received in respective cavities defined by a common base. This base is capped by a closing indicator made in one or more parts.
- This indicator light 10 includes illuminating areas 9 corresponding to the various signaling functions, these illuminating areas being separated by transition zones 9 having no optical role. It is in these transition zones that the indicator is fixed, by gluing or the like, on partitions or the like forming part of the base, and the conventional light unit therefore suffers from a lack of uniformity of appearance when the functions are off, because the fixing arrangements appear behind the indicator in the form of darker lines.
- the areas of the indicator forming illuminating surfaces are made of a transparent plastic material, possibly colored when the indicator must give the light functions their charged color. with a low density of reflective particles, while the transition zones 9 are made of the same plastic material, but having a higher density of reflective particles.
- the low density of the flakes present at the level of the illuminating surfaces favors the dispersion of the light flux over a wide angular extent, which is generally desirable with regard to the regulations in terms of photometry.
- the high density of glitter present in the transition zones 8 opacifies the indicator sufficiently to mask the dark lines linked to the attachment of the indicator.
- FIG. 9 Another application of the invention is illustrated in FIG. 9. It consists in making a rear luminous flux recuperator of a signaling light in a transparent plastic material charged with reflective particles.
- a rear luminous flux recuperator of a signaling light in a transparent plastic material charged with reflective particles.
- the light rays emitted by the lamp towards the recuperator are reflected by the metallic flakes in a random manner, the reflected rays being distributed regularly around an average direction of emission.
- Such a recuperator therefore opens the angle of emission of the light beam. It is therefore particularly suitable for signaling devices which must have a large augular range of emission, such as flashing lights.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9308061A FR2708334B1 (fr) | 1993-07-01 | 1993-07-01 | Elément de style ou d'optique, d'aspect brillant et de teinte neutre, pour éclairage ou signalisation automobile. |
FR9308061 | 1993-07-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0632228A1 true EP0632228A1 (de) | 1995-01-04 |
EP0632228B1 EP0632228B1 (de) | 1997-01-02 |
Family
ID=9448792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94401475A Expired - Lifetime EP0632228B1 (de) | 1993-07-01 | 1994-06-29 | Stylistisches oder optisches Element- mit glänzendem Aussehen und neutraler Farbe- für Kfz-Beleuchtungs- oder Anzeige-Scheinwerfer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0632228B1 (de) |
DE (1) | DE69401314T2 (de) |
ES (1) | ES2097011T3 (de) |
FR (1) | FR2708334B1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2734885A1 (fr) * | 1995-05-30 | 1996-12-06 | Bosch Gmbh Robert | Projecteur pour vehicule comprenant un ecran de couleur fixe au boitier de maniere amovible |
EP1191280A1 (de) * | 2000-09-25 | 2002-03-27 | Valeo Vision | Beleuchtungs-oder Signal-Vorrichtung für Kraftfahrzeug mit verbessertem Aussehen |
DE4434667B4 (de) * | 1994-09-28 | 2006-12-28 | Automotive Lighting Reutlingen Gmbh | Scheinwerfer für Fahrzeuge |
ITVR20100191A1 (it) * | 2010-10-05 | 2012-04-06 | Borromini S R L | Procedimento di stampaggio ad iniezione ed apparecchiatura per la realizzazione di detto procedimento |
EP2650098A1 (de) * | 2012-04-11 | 2013-10-16 | Valeo Vision | Transparente Element für Vorrichtung zur Beleuchtung und/oder Signalisierung |
WO2014207414A3 (fr) * | 2013-06-28 | 2015-04-16 | Automotive Lighting Rear Lamps France | Dispositif a éclairage indirect pour feu arrière de véhicule automobile |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2765665B1 (fr) * | 1997-07-07 | 1999-09-24 | Valeo Vision | Projecteur de vehicule automobile equipe d'un enjoliveur entre glace et miroir |
DE19807409A1 (de) * | 1998-02-21 | 1999-08-26 | Volkswagen Ag | Scheinwerfer oder Leuchte |
DE29809618U1 (de) * | 1998-05-28 | 1998-07-30 | Hella Kg Hueck & Co | Scheinwerfer für Fahrzeuge, insbesondere Zusatzscheinwerfer für Kraftfahrzeuge |
DE10333606B4 (de) * | 2003-07-24 | 2006-07-20 | GM Global Technology Operations, Inc., Detroit | Kraftfahrzeug-Leuchte |
DE102007033709A1 (de) | 2007-07-17 | 2009-01-22 | Volkswagen Ag | Fahrzeugleuchtvorrichtung mit einer lichtstreuenden Zwischenlichtscheibe |
DE102007033706B4 (de) | 2007-07-17 | 2014-05-28 | Volkswagen Ag | Fahrzeugleuchtvorrichtung mit einer dreidimensionalen mehrfarbigen Zwischenlichtscheibe |
DE102007033711A1 (de) | 2007-07-17 | 2009-01-22 | Volkswagen Ag | Fahrzeugleuchtvorrichtung mit einem Zusatzreflektor zum seitlichen Umlenken eines Lichtteils einer Lichtquelle |
DE102013226570A1 (de) * | 2013-12-19 | 2015-06-25 | Bayerische Motoren Werke Aktiengesellschaft | Frontscheinwerfer für ein Kraftfahrzeug |
FR3016684B1 (fr) | 2014-01-21 | 2019-05-10 | Psa Automobiles Sa. | Dispositif d'eclairage de vehicule, en particulier d'eclairage diurne, et vehicule ainsi equipe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2564945A1 (fr) * | 1984-05-25 | 1985-11-29 | Cibie Projecteurs | Perfectionnements aux projecteurs de vehicules automobiles. |
GB2254686A (en) * | 1991-04-12 | 1992-10-14 | Valeo Vision | An optical unit for a vehicle,having an embellisher |
-
1993
- 1993-07-01 FR FR9308061A patent/FR2708334B1/fr not_active Expired - Lifetime
-
1994
- 1994-06-29 EP EP94401475A patent/EP0632228B1/de not_active Expired - Lifetime
- 1994-06-29 DE DE69401314T patent/DE69401314T2/de not_active Expired - Lifetime
- 1994-06-29 ES ES94401475T patent/ES2097011T3/es not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2564945A1 (fr) * | 1984-05-25 | 1985-11-29 | Cibie Projecteurs | Perfectionnements aux projecteurs de vehicules automobiles. |
GB2254686A (en) * | 1991-04-12 | 1992-10-14 | Valeo Vision | An optical unit for a vehicle,having an embellisher |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4434667B4 (de) * | 1994-09-28 | 2006-12-28 | Automotive Lighting Reutlingen Gmbh | Scheinwerfer für Fahrzeuge |
FR2734885A1 (fr) * | 1995-05-30 | 1996-12-06 | Bosch Gmbh Robert | Projecteur pour vehicule comprenant un ecran de couleur fixe au boitier de maniere amovible |
EP1191280A1 (de) * | 2000-09-25 | 2002-03-27 | Valeo Vision | Beleuchtungs-oder Signal-Vorrichtung für Kraftfahrzeug mit verbessertem Aussehen |
FR2814531A1 (fr) * | 2000-09-25 | 2002-03-29 | Valeo Vision | Dispositif d'eclairage ou de signalisation pour vehicule automobile d'aspect ameliore |
ITVR20100191A1 (it) * | 2010-10-05 | 2012-04-06 | Borromini S R L | Procedimento di stampaggio ad iniezione ed apparecchiatura per la realizzazione di detto procedimento |
WO2012046186A1 (en) * | 2010-10-05 | 2012-04-12 | Borromini S.R.L. | Injection molding process and apparatus for carrying out said process |
EP2650098A1 (de) * | 2012-04-11 | 2013-10-16 | Valeo Vision | Transparente Element für Vorrichtung zur Beleuchtung und/oder Signalisierung |
FR2989449A1 (fr) * | 2012-04-11 | 2013-10-18 | Valeo Vision | Element transparent pour dispositif d'eclairage et/ou de signalisation de vehicule, comprenant un moyen anti-retrait, et moule de fabrication d'un tel element |
WO2014207414A3 (fr) * | 2013-06-28 | 2015-04-16 | Automotive Lighting Rear Lamps France | Dispositif a éclairage indirect pour feu arrière de véhicule automobile |
CN105492824A (zh) * | 2013-06-28 | 2016-04-13 | 汽车照明后灯法国有限公司 | 用于机动车辆尾灯的间接照明装置 |
CN105492824B (zh) * | 2013-06-28 | 2019-07-30 | 汽车照明后灯法国有限公司 | 用于机动车辆尾灯的间接照明装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2708334B1 (fr) | 1995-10-20 |
FR2708334A1 (fr) | 1995-02-03 |
DE69401314D1 (de) | 1997-02-13 |
ES2097011T3 (es) | 1997-03-16 |
DE69401314T2 (de) | 1997-05-28 |
EP0632228B1 (de) | 1997-01-02 |
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