EP1092111A1 - Projecting headlight for motor vehicles - Google Patents
Projecting headlight for motor vehiclesInfo
- Publication number
- EP1092111A1 EP1092111A1 EP99931053A EP99931053A EP1092111A1 EP 1092111 A1 EP1092111 A1 EP 1092111A1 EP 99931053 A EP99931053 A EP 99931053A EP 99931053 A EP99931053 A EP 99931053A EP 1092111 A1 EP1092111 A1 EP 1092111A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- projection
- projection lens
- motor vehicles
- lens
- mirror
- 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
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
- F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
- F21S41/55—Attachment thereof
-
- 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
- F21S41/255—Lenses with a front view of circular or truncated circular outline
-
- 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
- F21S41/275—Lens surfaces, e.g. coatings or surface structures
-
- 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
- F21S41/29—Attachment thereof
- F21S41/295—Attachment thereof specially adapted to projection lenses
Definitions
- the invention relates to a projection headlight for motor vehicles, with essentially the following elements, a headlight housing, in which a lamp is arranged, a parabolic mirror, a projection lens and a holding frame at least for the projection lens according to the preamble of claim 1.
- a projection headlight essentially consists of the elements specified above.
- the illuminant, i. H. the lamp is arranged in a focus of a parabolic reflector.
- the lens is positioned with regard to its focal point. For this reason, given geometrical lighting ranges, which are prescribed for motor vehicles within a certain range, there are fixed geometric dimensions. These dimensions also depend on the lateral extent of the light cone when it hits the road.
- the individual elements must be held in a fixed position with respect to each other. This means that the lamp should adhere to the focus as far as possible except for slight vibrations.
- the projection lens The same applies to the projection lens.
- these optical elements which are coordinated with one another and with one another, are held with a frame, the holding frame in many cases connecting and holding all of the said elements together.
- the arrangement of these elements on a common holding frame means that they can be vibrationally coupled in such a way that vehicle vibrations cause the named three elements to vibrate together but never relative to one another can.
- Another aspect is the consideration of the required installation space within the
- DE 35 16 813 A1 discloses a dimmed vehicle headlight which is composed of an ellipsoidal reflector, a light source arranged in the first focal point of the reflector and, moreover, also with the elements already mentioned above.
- a tubular or better said cup-shaped frame or frame arrangement for holding the lens specified is disclosed.
- a likewise dimmed vehicle headlight in which a similar frame element is provided for the lens holder.
- This frame element in turn carries the various components of the headlight in the above-mentioned sense, but the construction is not designed to make optimum use of the installation space or to enlarge the optical impression of the projection lens in terms of dimensions.
- the present invention is therefore based on the object of further developing a projection headlight for motor vehicles of the generic type in such a way that the optical impression of the diameter of the projection lens is increased, and a clear gain in installation space is achieved in comparison with known headlights.
- the projection lens on the side facing the mirror has an inner, properly illuminated area which is surrounded by an annular, one-piece molding.
- This ring-shaped, one-piece molding on the projection lens shifts the actual lens body illuminated in the core area clearly beyond the holding frame to the front. In other words, this means that the holding frame is offset significantly behind the actual lens body, so that a considerable gain in installation space is achieved.
- the projection lens a convex outer contour that points outwards, that is, on the side facing away from the parabolic mirror.
- the by the convexity of the Projection lens designed according to the invention is larger than said illuminated inner region of the lens. This means that the headlight appears larger on the convex side of the projection lens, the actually illuminated area, in this case directly illuminated by the parabolic mirror, being smaller. In other words, this means that the projection lens is shown enlarged in its design, during which the actual direct illumination is smaller.
- the parabolic mirror and the other optical geometric dimensions are dimensioned such that the almost total core light portion falls on said inner illuminated area, which is smaller in diameter than that
- said annular, one-piece molding of the projection lens is machined optically tight on the side facing the mirror.
- the machined surface of the annular, one-piece molding can alternatively contain Fresnell structures in order to provide illumination of the surroundings.
- the said surface of the said formation can also be optically tight chrome-plated or otherwise metallized, or even etched. In the latter case, this leads to a diffuse scattering of the residual light, which is similar in effect to an optically dense design.
- the Fresnell structures mentioned above can also be optically tight chrome-plated or otherwise metallized, or even etched. In the latter case, this leads to a diffuse scattering of the residual light, which is similar in effect to an optically dense design. The same applies to the Fresnell structures mentioned above.
- the said optically tight covering is provided by sheet metal cladding elements attached to the holding frame.
- the lens is held by a frame that is mechanically fixed to the other headlight components. This means that the lens advantageously has lateral projections or a protruding edge that is clamped by clamping elements of said holding frame. Then on the opposite side in the area of these clamp elements
- Sheet metal cladding rings can also be arranged connected to said dimensions, which cause said optically sealed cover.
- Figure 1 representation of a projection headlight according to the invention in side view.
- FIG. 1 Detailed illustration of pitch circle A.
- Figure 1 shows the headlight in side view, only the most important components are shown.
- the headlight housing is not shown here, but only the headlight glass 10 delimiting towards the front.
- Behind it lies the projection lens 1, which is placed in a holding frame 4 or held by the same.
- the lamp element 6, which is arranged approximately in one of the foci of the parabolic mirror 7.
- the mechanically rigid connection between the holding frame 4 and the parabolic mirror 7 are also not shown here.
- the projection lens 1 has an edge region 2, which is formed in a ring and in one piece on the projection lens. In other words, this means that the projection lens is in one piece anyway and the edge area is formed by the appropriate grinding or the mechanical processing of the projection lens.
- On the side 3 of the projection lens 1 facing the lamp or the parabolic mirror 7 is a according to the inner illuminated area that can be seen across the entire area
- This flat ground area is that which is directly illuminated by the lamp element 6 above the parabolic mirror 7.
- the light thrown out here is the one defined above
- the molding 2 of the projection lens placed on the edge according to the invention is chamfered on the side also placed on the above-mentioned inner region 3.
- this bevel is only an example, so it is not mandatory. Through this bevel, stray light is coupled out of the actual core light cone. Otherwise, the inner area 3, which is essentially directly illuminated, is defined. This means that the concavity formed on the other side of the projection lens 1 extends beyond the inner region 3 also beyond the region of the projection 2. Outwardly, that is to say in terms of design optics, the diameter of the projection lens is larger than that for that
- Said shaping 2 can now be designed in a different manner according to the other figures. This area is therefore marked with a detailed circle A in FIG. This detail circle A is shown in detail in the following figures.
- Figure 2 shows in the corresponding circle of details that the molded part 2 is matted on the correspondingly beveled surface, or is optically processed in the manner already described above.
- This surface can be matted or optically covered, which is then the same in effect, namely to decouple the stray light.
- Figure 3 shows a corrugation of said surface to produce Fresnell structures, which also have the effect of the scattered light, i.e. the light outside of the core light cone, i.e. to use for ambient lighting.
- FIG. 4 shows a further possibility, namely to attach a sheet metal cladding to the holding frame 4, which covers the projection lens in this rear area until the extension of the chamfer 2 is fully extended.
- Another variant can consist in metallizing the sheet metal cladding 4 on the side facing the projection mirror and shaping it in such a way that the scattered light reflects back into the usable core light cone of the mirror. In addition to the aforementioned gain in installation space, this would also result in a higher luminous efficiency.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19829345 | 1998-07-01 | ||
DE19829345A DE19829345B4 (en) | 1998-07-01 | 1998-07-01 | Projection headlights for motor vehicles |
PCT/EP1999/004019 WO2000001983A1 (en) | 1998-07-01 | 1999-06-11 | Projecting headlight for motor vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1092111A1 true EP1092111A1 (en) | 2001-04-18 |
EP1092111B1 EP1092111B1 (en) | 2004-09-08 |
Family
ID=7872598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99931053A Expired - Lifetime EP1092111B1 (en) | 1998-07-01 | 1999-06-11 | Projecting headlight for motor vehicles |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1092111B1 (en) |
JP (1) | JP2002519839A (en) |
DE (2) | DE19829345B4 (en) |
WO (1) | WO2000001983A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004011090B4 (en) * | 2004-03-06 | 2007-01-04 | Daimlerchrysler Ag | Headlights for vehicles |
FR3005343A1 (en) * | 2013-05-06 | 2014-11-07 | Valeo Vision | LIGHTING DEVICE AND CORRESPONDING LENS FOR MOTOR VEHICLE |
JP6830850B2 (en) * | 2017-04-14 | 2021-02-17 | 株式会社小糸製作所 | Vehicle lighting |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2550847B1 (en) * | 1983-08-18 | 1988-07-01 | Cibie Projecteurs | ELLIPTICAL REFLECTOR WITH CUT BEAM FOR MOTOR VEHICLE |
DE3516813A1 (en) * | 1985-05-10 | 1986-11-13 | Hella KG Hueck & Co, 4780 Lippstadt | Dimmed vehicle headlights |
AT398337B (en) * | 1988-04-27 | 1994-11-25 | Zizala Lichtsysteme Gmbh | Vehicle headlight (headlamp) |
DE3827594A1 (en) * | 1988-08-13 | 1990-02-15 | Hella Kg Hueck & Co | METHOD FOR PRODUCING AND MANUFACTURED FRAME FOR A VEHICLE HEADLAMP USING THE PROJECTION METHOD |
DE4305633A1 (en) * | 1992-02-24 | 1993-10-07 | Valeo Vision | Headlamp with two-part lens holder esp for motor vehicle - has relative positions of lens and reflector fixed by heat-dissipating assembly which grips lens between coaxial collars |
DE19655357B4 (en) * | 1996-05-25 | 2009-01-15 | Automotive Lighting Reutlingen Gmbh | Vehicle headlights |
-
1998
- 1998-07-01 DE DE19829345A patent/DE19829345B4/en not_active Expired - Fee Related
-
1999
- 1999-06-11 JP JP2000558340A patent/JP2002519839A/en not_active Withdrawn
- 1999-06-11 EP EP99931053A patent/EP1092111B1/en not_active Expired - Lifetime
- 1999-06-11 WO PCT/EP1999/004019 patent/WO2000001983A1/en active IP Right Grant
- 1999-06-11 DE DE59910463T patent/DE59910463D1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0001983A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2002519839A (en) | 2002-07-02 |
WO2000001983A1 (en) | 2000-01-13 |
DE19829345B4 (en) | 2009-11-26 |
DE19829345A1 (en) | 2000-01-13 |
DE59910463D1 (en) | 2004-10-14 |
EP1092111B1 (en) | 2004-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19508472C2 (en) | Vehicle headlights with a number of lights | |
DE10100176B4 (en) | Luminaire with a reflector arrangement with a plurality of reflection surfaces, in particular for a motor vehicle | |
DE19853402B4 (en) | Headlamp with hyperbolic reflector and headlamp insert with such a headlamp | |
EP1070634B1 (en) | Direction indicating side light | |
DE102017204517A1 (en) | Optical projection system and projection headlamp for forming a dual light path and vehicle in which this optical system is used | |
DE2941227A1 (en) | LAMP FOR MOTOR VEHICLES | |
DE19907765A1 (en) | Improved unit containing at least one headlamp and indicator light for car | |
DE102014219426A1 (en) | vehicle headlights | |
DE4138082A1 (en) | MOTOR VEHICLE HEADLIGHTS | |
DE2726951A1 (en) | LAMP REFLECTOR AND LAMP UNIT | |
DE10052653A1 (en) | Lighting arrangement for motor vehicles | |
DE19519655B4 (en) | Lighting device arranged on a front part of a vehicle | |
DE2230584A1 (en) | Lens and reflex reflector | |
DE10161922A1 (en) | vehicle headlights | |
EP1092111A1 (en) | Projecting headlight for motor vehicles | |
DE102020215066A1 (en) | LIGHT FOR A VEHICLE | |
DE19829344B4 (en) | Headlight assembly for motor vehicles | |
DE69915716T2 (en) | Lamp with reflector for vehicles | |
DE2546174A1 (en) | LAMP | |
DE102005025481A1 (en) | Lighting device for a motor vehicle | |
EP0581048B1 (en) | Vehicular headlights | |
EP0969246B1 (en) | Headlamp device of the projection type for motor vehicles | |
EP0985871A2 (en) | Headlamp and method of making the same | |
EP1052449B1 (en) | Vehicle headlamp | |
DE864836C (en) | Anti-glare body for motor vehicle headlights |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20010201 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB |
|
17Q | First examination report despatched |
Effective date: 20020613 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040908 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040908 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59910463 Country of ref document: DE Date of ref document: 20041014 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041219 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20040908 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050609 |
|
EN | Fr: translation not filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080630 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100101 |