EP3540295B1 - Ensemble de phare de véhicule - Google Patents
Ensemble de phare de véhicule Download PDFInfo
- Publication number
- EP3540295B1 EP3540295B1 EP18161797.8A EP18161797A EP3540295B1 EP 3540295 B1 EP3540295 B1 EP 3540295B1 EP 18161797 A EP18161797 A EP 18161797A EP 3540295 B1 EP3540295 B1 EP 3540295B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- exit surface
- light emitter
- entry
- optical axis
- 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.)
- Active
Links
- 230000003287 optical effect Effects 0.000 claims description 26
- 238000005286 illumination Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
-
- 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
- F21S41/27—Thick lenses
-
- 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
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
Definitions
- the invention relates to a vehicle light assembly, as known from DE 10 2010 018 119 A1 or DE 20 2013 101 509 U1 .
- a vehicle light assembly disclosed in Taiwanese Patent No. I582335 , includes a light emitter module 1 and a heat dissipation member 2.
- the light emitter module 1 includes a lens 11 and a light emitter 12.
- the lens 1 has a light entry surface 111, a light exit surface 112 spaced apart from the light entry surface 111 along an optical axis (L), and two opposite flank surfaces 113 connecting the light entry surface 111 to the light exit surface 112 along the optical axis (L).
- the light emitter 12 emits light rays into the lens 11 through the light entry surface 111.
- Some light rays (A) (see arrow A in Fig. 2 ), which beam forwardly and exit from the light exit surface 112, are concentrated to a central area in front of the vehicle light assembly.
- Some light rays (B) (see arrow B in Fig. 2 ) are transmitted forwardly by multiple reflections between the flank surfaces 113 to exit from the light exit surface 112.
- the light rays (B), which are reflected from a left one of the flank surfaces 113 to the light exit surface 112, are emitted forward and rightward from the light exit surface 112 after exiting the light exit surface 112.
- the light rays (B), which are reflected from a right one of the flank surfaces 113 to the light exit surface 112, are emitted forward and leftward from the light exit surface 112 after exiting the light exit surface 112.
- the light rays (A) and (B) project a non-continuous light pattern on an illuminated plane which forms three discrete bright regions. Because dark regions appear between adjacent bright regions, the non-continuous light pattern is unable to provide satisfactory visual effects. Furthermore, because the flank surfaces 113 are essentially utilized for light reflection, the light pattern provided by the vehicle light assembly is significantly affected by the flank surfaces 113. Hence, it is impossible to vary greatly the profile and curvature of the flank surfaces 113 for improving design varieties.
- an object is to provide a vehicle light assembly that can alleviate at least one of the drawbacks of the prior art.
- a vehicle light assembly with the features of indenpendent claim 1 is provided.
- a vehicle light assembly includes a light emitter module 3.
- the light emitter module 3 includes a lens 4, a light emitter 5 disposed at a rear side of the lens 4, and a circuit board 51.
- the lens 4 includes a curved light exit surface 42 disposed at a front side of the lens 4, a light entry surface 41, left and right reflection surfaces 43, left and right bridge surfaces 44, and left and right flank surfaces 45.
- the light entry surface 41 is spaced apart from the curved light exit surface 42 along an optical axis (L), and is disposed adjacent to the light emitter 5.
- the light entry surface 41 has a first light entry portion 411, a base portion 410, and a second light entry portion 412.
- the optical axis (L) passes through the first light entry portion 411.
- the first light entry portion 411 is convexed rearwardly in a direction away from the curved light exit surface 42.
- the base portion 410 is flat and disposed around the optical axis (L) rearwardly of the first light entry portion 411.
- the second light entry portion 412 is connected between an annular inner periphery of the base portion 410 and the first light entry portion 411.
- the first and second light entry portions 411, 412 cooperatively bound a light entry hole 413.
- the light entry hole 413 has an opening 414 that faces rearward and that is formed in the base portion 410.
- the light entry hole 413 is immediately disposed at the front of the light emitter 5
- the first light entry portion (411) is immediately disposed at the front of the light entry hole 413.
- the first light entry portion 411 is convexed rearwardly into the light entry hole 413.
- the base portion 410 is close to the light emitter 5.
- the curved light exit surface 42 has an exit surface top side 42a, an exit surface bottom side 42b, an exit surface left side 42c, and an exit surface right side 42d (see Figs. 3 and 8 ).
- the curved light exit surface 42 protrudes arcuately and forwardly from the exit surface top and bottom sides 42a, 42b to a region disposed midway between the exit surface top and bottom sides 42a, 42b so that the exiting light rays can be directed forward and downward.
- the curved light exit surface 42 indents rearwardly and arcuately from the exit surface left and right sides 42c, 42d to a region disposed midway between the exit surface left and right sides 42c, 42d so that the exiting light rays slant slightly leftward and rightward to increase the range of illumination in a left-right direction.
- the left and right reflection surfaces 43 are respectively connected to left and right sides of the light entry surface 41 to reflect light rays of the light emitter 5 incident on the light entry surface 41 toward the curved light exit surface 42. Particularly, the left and right reflection surfaces 43 are respectively connected to left and right sides of the base portion 410. Each of left and right reflection surfaces 43 is a parabolic surface. The left or right reflection surface 43 should not be large. The length of the left or right reflection surface 43 in a front-rear direction is shorter than that of the left or right flank surface 45.
- the left and right bridge surfaces 44 respectively extend leftward and rightward from the left and right reflection surfaces 43 and connect rear ends of the left and right flank surfaces 45.
- the left and right flank surfaces 45 are respectively disposed at the left side of the left reflection surface 43 and the right side of the right reflection surface 43 and extend forwardly from the respective left and right bridge surfaces 44 to connect the curved light exit surface 42.
- a minimum distance (d1) of each of the left and right flank surfaces 45 from the optical axis (L) is greater than a maximum distance (d2) of each of the left and right reflection surfaces 43 from the optical axis (L).
- the light emitter 5 such as an LED, is mounted on the circuit board 51, and both of them are located rearward of the base portion 410 of the light entry surface 41.
- the light emitter 5 faces the first light entry portion 411 and the opening 414 of the light entry hole 413.
- the light emitter 5 has a center located at the optical axis (L), and the light emitter module 3 functions as a high beam light bulb.
- the light emitter module 3 functions as a low beam light bulb.
- the first light entry portion 411 which protrudes rearward, facilitates converging of the light rays after refraction.
- the left and right reflection surfaces 43 reflect the light rays to be closer to the optical axis (L) rather than toward the left and right flank surfaces 45. Afterwards, the light rays exit the curved light exit surface 42.
- the left reflection surface 43 reflects the light rays toward the curved light exit surface 42 at the left side of the optical axis (L).
- the right reflection surface 43 reflects the light rays to the curved light exit surface 42 at the right side of the optical axis (L).
- the curved light exit surface 42 can generate an illumination area sufficiently large to provide a light distribution pattern and brightness required by vehicle lighting regulations. Because the vehicle light assembly of the present invention can enable the exiting light rays to provide uniformly and continuously distributed lighting regions, occurrence of dark regions that interrupt or discontinue the light distribution pattern can be avoided.
- the light rays of the light emitter 5 are reflected by the left and right reflection surfaces 43, the light rays almost do not travel to the left and right flank surfaces 45.
- the left and right flank surfaces 45 are not main functional surfaces for reflecting the light rays and controlling the light distribution pattern. Accordingly, the left and right flank surfaces 45 may be provided with other design varieties, such as different extension directions, different curvatures, different slopes, different embossed patterns, etc., without affecting the desired light distribution pattern.
- the left and right reflection surfaces 43 are parabolic surfaces having respective focal points (F) disposed at a same location that has a distance from the entry surface 41 more longer than a distance of the light emitter 5 from the entry surface 41 and that is offset from the optical axis (L).
- the focal point (F) is at the rear side of the light emitter 5.
- the focal point (F) of the left and right reflection surfaces 43 falls to the location of the light emitter 5, or between the first light entry portion 411 of the light entry surface 41 and the light emitter 5 (i.e., at the front side of the light emitter 5), in order to achieve the desired optical effects, the light entry surface 41 will have to be located more forwardly and the curved light exit surface 42 will have to be adjusted and shifted forwardly. That is to say, the lens 4 will need an increased front-rear length (i.e., an increased distance between the base portion 410 and the curved light exit surface 42), which is not beneficial for miniaturization of the lens 4.
- the focal point (F) of the left and right reflection surfaces 43 is offset from the optical axis (L) and disposed at the distance from the entry surface 41 more longer than the distance of the light emitter 5 from the entry surface 41, the front-rear length of the lens 4 can be shortened for minimizing the lens 4.
- the optical axis (L) intersects the opening 414 at an intersection point (C).
- the first light entry portion 411 of the light entry surface 41 has a focal point located at the intersection point (C).
- the curved light exit surface 42 has a focal point located at the intersection point (C) or located in vicinity of the intersection point (C).
- a vehicle light assembly includes a plurality of the light emitter modules 3 juxtaposed to each other.
- One of the left and right flank surfaces 45 of each of the juxtaposed light emitter modules 3 faces one of left and right the flank surfaces 45 of the other one of the juxtaposed light emitter modules 3.
- the light emitter modules 3 are, but not limited to, juxtaposed to each other in a row. Every two adjacent light emitter modules 3 may be spaced apart from each other, or may adjoin each other. Further, at least one of the light emitter modules 3 functions as a high beam light bulb, and at least one of the light emitter modules 3 functions as a low beam light bulb. Therefore, the vehicle light assembly of the present invention can be controlled to provide the low beam function or high beam function. In other embodiments, all of the light emitter modules 3 may function as high or low beam light bulbs.
- the lenses 4 of the light emitter modules 3 can be juxtaposed to each other by adjoining the left and right flank surfaces 45 of every two adjacent ones of the lenses 4.
- a vehicle light assembly includes a plurality of the light emitter modules 3 juxtaposed to each other along a line and are integrally formed as one piece.
- the front-rear lengths of the light emitter modules 3 are different.
- a vehicle light assembly includes a plurality of the light emitter modules 3 are integrally interconnected and arranged to have an L-shaped configuration.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Claims (10)
- Ensemble phare de véhicule comprenant :au moins un module émetteur de lumière (3) incluant une lentille (4) et un émetteur de lumière (5) disposé du côté arrière de ladite lentille (4), ladite lentille (4) incluantune surface de sortie de lumière incurvée (42) disposée du côté avant de ladite lentille (4),une surface d'entrée de lumière (41) espacée de ladite surface de sortie de lumière (42) le long d'un axe optique (L) et disposée de manière adjacente audit émetteur de lumière (5), ladite surface d'entrée de lumière (41) ayant une première partie d'entrée de lumière (411) à travers laquelle passe l'axe optique (L),des surfaces de réflexion gauche et droite (43) respectivement reliées aux côtés gauche et droit de ladite surface d'entrée de lumière (41) pour réfléchir la lumière dudit émetteur de lumière (5) passant à travers ladite surface d'entrée de lumière (41) vers ladite surface de sortie de lumière incurvée (42), chacune desdites surfaces de réflexion gauche et droite (43) étant une surface parabolique et ayant un point focal (F) qui est disposé à une distance de ladite surface d'entrée (41) plus longue que la distance dudit émetteur de lumière (5) de ladite surface d'entrée (41) et qui est décalée par rapport à l'axe optique (L), etdes surfaces de flanc gauche et droite (45) respectivement disposées sur un côté gauche de ladite surface de réflexion gauche (43) et un côté droit de ladite surface de réflexion droite (43) et s'étendant vers l'avant pour relier ladite surface de sortie de lumière incurvée (42) dans une vue en coupe supérieure de ladite lentille,caractérisé en ce que :chacune desdites surfaces de flanc gauche et droite (45) présente une distance minimale (d1) de l'axe optique (L), chacune desdites surfaces de réflexion gauche et droite (43) présente une distance maximale (d2) de l'axe optique (L), la distance minimale (d1) de chacune desdites surfaces de flanc gauche et droite (45) étant supérieure à la distance maximale (d2) de chacune desdites surfaces de réflexion gauche et droite (43) ; etladite première partie d'entrée de lumière (411) est convexe vers l'arrière dans une direction opposée à ladite surface de sortie de lumière incurvée (42) dans une vue en coupe supérieure de ladite lentille ;dans lequel ladite surface d'entrée de lumière (41) présente en outre une partie de base (410) et une seconde partie d'entrée de lumière (412), ladite partie de base (410) étant disposée autour de l'axe optique (L) à l'arrière de ladite première partie d'entrée de lumière (411), ladite seconde partie d'entrée de lumière (412) étant reliée entre une périphérie intérieure annulaire de ladite partie de base (410) et ladite première partie d'entrée de lumière (411), lesdites première et seconde parties d'entrée de lumière (411, 412) délimitant de manière coopérative un trou d'entrée de lumière (413) ; etdans lequel ledit point focal (F) de chacune desdites surfaces de réflexion gauche et droite (43) se trouve du côté arrière dudit émetteur de lumière (5).
- Ensemble phare de véhicule selon la revendication 1, caractérisé en ce que ladite surface de sortie de lumière incurvée (42) présente un côté supérieur de surface de sortie, un côté inférieur de surface de sortie, un côté gauche de surface de sortie et un côté droit de surface de sortie, ladite surface de sortie de lumière incurvée faisant saillie en arc et vers l'avant depuis lesdits côtés supérieur et inférieur de surface de sortie jusqu'à une région située à mi-chemin entre lesdits côtés supérieur et inférieur de surface de sortie.
- Ensemble phare de véhicule selon la revendication 2, caractérisé en ce que ladite surface de sortie de lumière incurvée (42) se creuse vers l'arrière et en arc depuis lesdits côtés gauche et droit de surface de sortie jusqu'à une région située à mi-chemin entre lesdits côtés gauche et droit de surface de sortie.
- Ensemble phare de véhicule selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit émetteur de lumière (5) a un centre situé sur l'axe optique (L), ledit au moins un module émetteur de lumière (3) fonctionnant comme une ampoule de feu de route.
- Ensemble phare de véhicule selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit émetteur de lumière (5) a un bord situé sur l'axe optique (L), ledit au moins un module émetteur de lumière (3) fonctionnant comme une ampoule de feu de croisement.
- Ensemble phare de véhicule selon la revendication 1, caractérisé en ce que ledit au moins un module émetteur de lumière inclut une pluralité de modules émetteurs de lumière (3) juxtaposés les uns aux autres, l'une desdites surfaces de flanc gauche et droite (45) de chacun desdits modules émetteurs de lumière (3) faisant face à l'une desdites surfaces de flanc gauche et droite (45) de l'autre desdits modules émetteurs de lumière (3).
- Ensemble phare de véhicule selon la revendication 1, caractérisé en ce que ledit au moins un module émetteur de lumière inclut une pluralité de modules émetteurs de lumière (3) juxtaposés les uns aux autres, au moins l'un desdits modules émetteurs de lumière (3) fonctionnant comme une ampoule de feu de route, au moins l'un desdits modules émetteurs de lumière (3) fonctionnant comme une ampoule de feu de croisement.
- Ensemble phare de véhicule selon la revendication 1, caractérisé en ce que ledit au moins un module émetteur de lumière (3) inclut une pluralité de modules émetteurs de lumière (3) juxtaposés les uns aux autres, qui fonctionnent tous comme des ampoules de feu de route ou de feu de croisement.
- Ensemble phare de véhicule selon la revendication 1, caractérisé en ce que :
ladite surface d'entrée de lumière (41) présente en outre un trou d'entrée de lumière (413) disposé immédiatement à l'avant dudit émetteur de lumière (5), ladite première partie d'entrée de lumière (411) étant disposée immédiatement à l'avant dudit trou d'entrée de lumière (413), l'axe optique (L) passant par ledit trou d'entrée de lumière (413) et ladite première partie d'entrée de lumière (411), ladite première partie d'entrée de lumière (411) étant convexe vers l'arrière dans ledit trou d'entrée de lumière (413). - Ensemble phare de véhicule selon la revendication 9, caractérisé en ce que ledit trou d'entrée de lumière (413) présente une ouverture (414) formée dans ladite partie de base (410), lesdites surfaces de réflexion gauche et droite (43) étant reliées aux côtés gauche et droit de ladite partie de base (410), ladite partie de base (410) étant proche dudit émetteur de lumière (5).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES18161797T ES2965827T3 (es) | 2018-03-14 | 2018-03-14 | Conjunto de faros delanteros para vehículos |
EP18161797.8A EP3540295B1 (fr) | 2018-03-14 | 2018-03-14 | Ensemble de phare de véhicule |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18161797.8A EP3540295B1 (fr) | 2018-03-14 | 2018-03-14 | Ensemble de phare de véhicule |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3540295A1 EP3540295A1 (fr) | 2019-09-18 |
EP3540295B1 true EP3540295B1 (fr) | 2023-09-20 |
Family
ID=61683592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18161797.8A Active EP3540295B1 (fr) | 2018-03-14 | 2018-03-14 | Ensemble de phare de véhicule |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3540295B1 (fr) |
ES (1) | ES2965827T3 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021130729B3 (de) | 2021-11-24 | 2023-01-26 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4767172A (en) * | 1983-01-28 | 1988-08-30 | Xerox Corporation | Collector for an LED array |
DE102010018119B4 (de) * | 2010-04-24 | 2023-06-22 | HELLA GmbH & Co. KGaA | Optikelement für eine Beleuchtungseinrichtung eines Fahrzeugs |
DE202013101509U1 (de) * | 2013-04-09 | 2013-04-23 | Fu An Industrial Co., Ltd. | Optische Linse für Streifenbeleuchtungen |
DE102013207845A1 (de) * | 2013-04-29 | 2014-10-30 | Automotive Lighting Reutlingen Gmbh | Lichtmodul für einen Kraftfahrzeugscheinwerfer |
JP6241875B2 (ja) * | 2013-12-06 | 2017-12-06 | スタンレー電気株式会社 | 車両用前照灯 |
DE202014003078U1 (de) * | 2014-04-10 | 2014-04-17 | Osram Gmbh | Optisches Element und Beleuchtungseinrichtung mit optischem Element |
TWI582335B (zh) | 2015-02-26 | 2017-05-11 | T Y C Brother Industrial Co Ltd | Lights |
AT518557B1 (de) * | 2016-04-29 | 2018-04-15 | Zkw Group Gmbh | Beleuchtungseinheit für einen Kraftfahrzeugscheinwerfer zum Erzeugen eines Lichtbündels mit Hell-Dunkel-Grenze |
-
2018
- 2018-03-14 ES ES18161797T patent/ES2965827T3/es active Active
- 2018-03-14 EP EP18161797.8A patent/EP3540295B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
ES2965827T3 (es) | 2024-04-17 |
EP3540295A1 (fr) | 2019-09-18 |
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