EP2607779A1 - Lampe de véhicule automobile - Google Patents

Lampe de véhicule automobile Download PDF

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Publication number
EP2607779A1
EP2607779A1 EP11194497.1A EP11194497A EP2607779A1 EP 2607779 A1 EP2607779 A1 EP 2607779A1 EP 11194497 A EP11194497 A EP 11194497A EP 2607779 A1 EP2607779 A1 EP 2607779A1
Authority
EP
European Patent Office
Prior art keywords
light
motor vehicle
prism
lens
light source
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.)
Withdrawn
Application number
EP11194497.1A
Other languages
German (de)
English (en)
Inventor
M.Sc. Marco Vollmer
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.)
Odelo GmbH
Original Assignee
Odelo GmbH
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.)
Filing date
Publication date
Application filed by Odelo GmbH filed Critical Odelo GmbH
Priority to EP11194497.1A priority Critical patent/EP2607779A1/fr
Publication of EP2607779A1 publication Critical patent/EP2607779A1/fr
Withdrawn legal-status Critical Current

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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
    • F21S43/20—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
    • 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
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the invention relates to a motor vehicle lamp according to the preamble of claim 1.
  • a motor vehicle lamp essentially comprises a lamp housing enclosed by a lamp housing and a lens, and at least one lamp housed therein for at least one light function of the motor vehicle lamp.
  • At least one reflector arranged behind at least one light source of the at least one luminous means can be accommodated in the luminaire interior.
  • the reflector can be formed at least in part by a separate component and / or by at least one part of the luminaire housing itself, for example by means of an at least partially reflective coating.
  • the reflector reflects at least one part of the light emitted by the light source in its direction, for example according to a desired for fulfilling a legally prescribed light distribution and defined by the predetermined light distribution emission characteristic of the motor vehicle light through the lens through the light inside out.
  • a lighting means for example at least one light source of the lighting means, may comprise one or more optical elements, such as at least one lens, at least one groove concentrator, e.g. at least one parabolic trough (CPC) or the like for shaping the defined emission characteristic. It is also conceivable that one or more optical elements are part of a luminous means or are covered by this.
  • optical elements such as at least one lens, at least one groove concentrator, e.g. at least one parabolic trough (CPC) or the like for shaping the defined emission characteristic. It is also conceivable that one or more optical elements are part of a luminous means or are covered by this.
  • CPC parabolic trough
  • the lens is formed by a transparent cover, which protects the interior of the lamp and the components housed by this against the weather.
  • At least one optical disk can be arranged in the beam path between at least one light source of the luminous means and the light disk, which can have, for example, a specific structure and / or masking, for example a clear one, for example for a viewer Depth effect causing lens to hide the bulb and / or its at least one light source.
  • the luminaire interior can be subdivided into one or more luminaire chambers of the same or different lighting functions.
  • the luminaire housing or the interior of the luminaire may be subdivided into a plurality of chambers, each with its own light sources and / or illuminants, possibly reflectors and / or optical elements and / or optical discs, as well as optionally light disks, of which several chambers can fulfill the same or each chamber a different light functions ,
  • a light function is a function of the motor vehicle light intended to fulfill a task.
  • Each motor vehicle light fulfills one or more tasks or functions depending on the design.
  • a light function of the motor vehicle light is provided.
  • Light functions are, for example, in a configuration as a headlamp a function illuminating the road surface, or in a configuration as a signal light, a signal function, such as a Wiederblinklichtfunktion to the direction indicator or a brake light function to indicate a braking action, or.
  • a limiting light function such as a taillight function, also referred to as a taillight function, and / or a side marker light function for ensuring visibility of the motor vehicle during the day and / or night, such as a taillight or daytime running light configuration.
  • motor vehicle lights are thesselbug, on the vehicle flanks and / or on the side mirrors and arranged at the rear of vehicle rear lights, exit lights, for example, ambient lighting, marker lights, brake lights, fog lamps, reversing lights, and typically high set third brake lights, so-called Central, High-Mounted Braking lights, daytime running lights, headlamps and fog lights used as turning or cornering lights, as well as combinations thereof.
  • the defined radiation characteristic serves to fulfill a light distribution of a light function of the motor vehicle light prescribed, for example, by legal requirements or requirements.
  • the light distribution is a predetermined for each light function of a motor vehicle lamp distribution of luminance in one or more different spatial directions of the fulfillment of a light function from at least one light source of at least one light source of a motor vehicle light emitted light.
  • the light in the motor vehicle light is deflected into corresponding preferred directions, which are necessary for obtaining the spatial directions at the exit from the motor vehicle light through the lens.
  • the defined emission characteristics to be fulfilled by prescribed light distributions in one or more preferred directions and luminances in this one or more preferred directions, which are to be fulfilled separately by the light functions of one or more motor vehicle lights or each motor vehicle light alone, are sight axes defined by the motor vehicle, such as defines the motor vehicle longitudinal axis or the motor vehicle transverse axis.
  • a luminous means for at least one light function comprises at least at least one light source, for example at least one incandescent lamp or at least one gas discharge lamp or at least one light-emitting diode and optionally combinations thereof.
  • LEDs come as light sources of lamps for automotive lighting, inter alia, because of their low power consumption LEDs increasingly used. These consist of at least one light-emitting diode semiconductor chip, short LED chip, as well as at least one, for example, molded by injection molding, the at least one LED chip completely or partially enveloping primary optics. Also, automotive lights are known in which pure LED chips are used without molded primary optics. In the following, therefore, for the sake of simplicity, no distinction is made between light-emitting diode and LED chip and, instead, the term LED is used uniformly for both embodiments, unless explicitly stated otherwise. Outstanding properties of LEDs compared to other, conventional light sources of bulbs are a much longer life and a significantly higher light output with the same power consumption. As a result, and among other things also because of their more compact dimensions can be realized by using LEDs as a light source of light bulbs particularly compact automotive lights, which can be adapted to almost every imaginable installation situation.
  • one or more light guides may be provided in a motor vehicle light.
  • a light source one or more light guides, in the light of at least one light source on at least one Lichteinkoppel requirements and is decoupled at least one of the Lichteinkoppel structure different light outcoupling surface again, and one or more, the light emitted by them at least partially in the at least comprise a light guide einkoppelnde light sources.
  • a targeted decoupling of light is achieved by a predetermined light deflection at one of the light outcoupling surface opposite Lichtumlenk characteristics with realized for example by provided on the Lichtumlenk nature prismatic Lichtumschettin.
  • An optical waveguide of such a luminous means can serve, for example, as a primary optic of one or more LEDs or be designed as such a primary optic.
  • the light guide can be housed as a separate component in the interior of the lamp.
  • the optical waveguide can be configured, for example, in the form of a bar as a so-called bar light guide and / or as a so-called planar light guide, with a light output surface arranged on its front side oriented, for example, normal to the main emission direction of a motor vehicle light.
  • one or more light guides may be provided to provide a desired light distribution, e.g. across the lens of the light emitted by one or more light sources.
  • the optical fiber contributes alone or in combination with an optical element mentioned at the beginning of compliance with a previously defined radiation characteristic.
  • the outer shape of a motor vehicle light is predetermined, for example, by the design of a motor vehicle and by the intended contour of the motor vehicle light and is reflected in the so-called strake course.
  • Another disadvantage of the prior art is that it is often not possible for. B. in a provided for fulfilling a light function lamp chamber, for example, provided for a reflector surfaces so that the required for obtaining the light distribution of the light function emission characteristic can be achieved. This is mainly due to shading occurring and due to manufacturing difficulties in the demolding example injection molded reflectors and / or luminaire housing.
  • An additional disadvantage of the prior art also lies in the cost and time-consuming production of the surfaces provided for a reflector. This is in particular the cost of producing a mirrored surface of the usually complex three-dimensionally designed reflector surfaces.
  • a good mirror-image quality of the reflector is necessary.
  • a first processing step in which first a molded part corresponding to the outer shape of the reflector is produced, this is then vapor-deposited or sputtered in a second processing step, for example with aluminum or silver, in order to obtain a reflector of high geometric and optical quality.
  • a second processing step for example with aluminum or silver
  • the optical quality in conjunction with a reflector is limited due to reflection losses occurring on mirrored surfaces.
  • optical quality is dependent on the alignment accuracy of the light source and reflector, resulting in a high assembly cost associated with high costs.
  • DE 100 15 759 A1 is a motor vehicle light with a housed in one of a lamp housing and a lens enclosed luminaire interior lighting with at least one light source and a reflector known.
  • the reflector reflects light emitted by the light source in the direction of a light aperture enclosed by the light aperture.
  • An aperture prevents the direct beam path of the light from the light source to the outlet opening.
  • the diaphragm is designed on its side facing the light source as a shielding reflector, which reflects light emitted by the light source in the direction of the reflector.
  • a motor vehicle lamp in which a prism is arranged in the direct beam path of a protruding through a lamp hole in a first reflector light source to a lens.
  • the prism deflects the incident on it part of the direct beam path to a second reflector surrounding the first reflector.
  • the side facing the lens of the prism is designed as a retroreflector and retroreflected from outside of the lens on the prism striking light. A light emission of the light emitted by the light source through the trained as a retroreflector, the lens facing side of the prism is not provided.
  • the invention is based on the object to develop a motor vehicle lamp, which provides a lasting improvement over the prior art quality impression and, for example, in a highly curved Strakverlauf a high optical quality while maintaining a targeted light extraction according to at least one predetermined light distribution for at least has a light function and preferably also characterized by a comparison with the prior art reduced manufacturing and assembly costs and concomitantly reduced manufacturing costs.
  • a motor vehicle lamp is provided with a lamp housing enclosed by a light and a lens interior to solve the problem.
  • the interior of the lamp can be divided into at least one lamp chamber or be provided with at least one lamp chamber, which can be provided to fulfill the same and / or different lighting functions.
  • at least one light source is housed with at least one light source.
  • the at least one light source is arranged in a region of the interior of the luminaire which is not visible from outside the motor vehicle light through the lens, for example behind a diaphragm.
  • At least one deflecting prism arranged in front of at least one light source and arranged in a region of the luminaire interior visible from outside the motor vehicle light provides for deflecting the light emitted by the at least one light source in the direction of the lens according to an example prescribed by law Light distribution of at least one light function of the motor vehicle light defined emission.
  • the deflection prism is an optical component in the form of the geometric body prism, which is used for deflecting one of at least one light source of at least one luminous means of the motor vehicle luminaire.
  • the geometric body prism is a geometric body which has a polygon as the base surface, as well as a boundary surface which is displaced along a mathematical curve, preferably a straight line in space, as the cover surface.
  • the base can be flat.
  • the top surface can also be flat.
  • the flat top surface may correspond to a parallel displacement of the base along the line.
  • the top surface and the bottom surface may be congruent or the top surface may be a geometrical similarity image of the base surface.
  • the similarity mapping may, for example, the distance to the base linearly proportional or variable according to any mathematical function have continuous course. In the extreme case, the similarity image can result in an infinitesimal small, then point-shaped top surface. If the proportionality of the similarity image decreases linearly with respect to the distance from the base surface, the geometric body corresponds to the prism of a pyramid.
  • the geometric body prism may be in the form of an oblique or straight cylinder or an oblique or straight pyramid or truncated pyramid with a triangular or polygonal base. In the case of a pyramid, the top surface is punctiform.
  • the geometric body prism in the form of an oblique or straight cylinder is created by parallel displacement of a congruent to a flat surface top surface.
  • the geometric body prism in the form of an oblique or straight pyramid or truncated pyramid is created by parallel displacement by performing a similar to the distance to the base linearly decreasing similarity in the case of a cone or truncated cone along the lying in this plane straight lines in space. If the parallel shift perpendicular to the base, it is a straight prism, otherwise it is a crooked prism.
  • the entirety of all other boundary surfaces of the geometric body prism forms the shell of the prism or the deflecting prism connecting the base and top surfaces.
  • the jacket consists of one of the number of corners of the base corresponding number of lateral surfaces.
  • the lateral surfaces are, for example, parallelograms, rectangles, triangles, trapezoids.
  • the side edges of the base can be parallel and the same length.
  • the deflection prism can be a geometric body prism in the form of a straight cylinder with a triangle as the base surface.
  • the optical properties of the deflecting prism depend essentially on the corner angles of the base surface or the position of the optically effective lateral surfaces relative to one another and on the refractive index of the material used for the deflecting prism, transparent to the light at least in the wavelength range visible to the human eye.
  • the material used is preferably glass or a transparent plastic, for example polymethylmethacrylate (PMMA) or polycarbonate (PC).
  • the light emitted by the at least one light source enters at least one first lateral surface in the deflecting prism and at at least one second lateral surface different from the first lateral surface again from the deflecting prism.
  • the deflection of the light at one or more preferably from the at least one first lateral surface and the at least one second lateral surface different third lateral surface of the shell instead.
  • the deflecting prism in the hot state when the light source is switched on, preferably itself, the entire intended to fulfill the light function or For example, legally required light area.
  • the deflecting prism is preferably made of a colorless material, so that the legally prescribed colors of the light functions can be met by the radiated colors of the one or more light sources. It is also conceivable to use a colored, at least for certain wavelengths transparent Umlenkprisma for color filtering. As a result, for example, white or colorless light sources, such as incandescent lamps in combination with a transparent lens can be used. As a result, it is possible to dispense with complex, expensive, for example red, pink or yellow light disks, which are complex and expensive to produce.
  • the deflection can take place by means of total reflection and / or directed reflection at one or more third lateral surfaces.
  • a deflecting prism over, for example, a mirror arrangement, as is formed by the reflector in a conventional motor vehicle luminaire, include the positional immutability of the reflecting surfaces and the compact construction. Also, such a deflecting prism is easier to handle in terms of manufacturing and assembly with respect to tolerances since deviations in mirrors are more pronounced.
  • the mirror shape errors are twice as strong as in the case of transparent optics, since in the case of mirror arrangements, a shape error has a double effect due to the equivalence of the angle of incidence to the angle of reflection.
  • At least a third lateral surface may be coated with metal, for example.
  • the jacket of the deflecting prism sections with a reflective coating to be mirrored, wherein the mirrored and non-mirrored portions can be assigned to different light functions.
  • the light emitted by at least one light source preferably strikes the at least one first lateral surface assigned to at least one light source.
  • the transmittance for unpolarized light is maximum, and the splitting of the light depending on the wavelength or the polarization is avoided since light incident perpendicular to an interface is not refracted.
  • a first lateral surface and / or a second lateral surface may be present Forming lateral surface of a first beam path form a third lateral surface of a second beam path and / or vice versa.
  • the deflection prism can fulfill different predetermined light distributions of different light functions of the motor vehicle light.
  • the deflecting prism may have a plurality of first and / or second and / or third lateral surfaces.
  • the deflecting prism can provide a light deflection in a plurality of the fulfillment of different predetermined light distributions of different light functions of the motor vehicle light serving directions.
  • the deflecting prism can be designed such that it satisfies both the fulfillment of a first defined emission characteristic sufficient to obtain the light distribution of a first light function, for example a tail light function, and the fulfillment of a second defined emission characteristic sufficient to obtain the light distribution of a second light function, for example a side marker light function enforcement.
  • a first defined emission characteristic sufficient to obtain the light distribution of a first light function
  • a second defined emission characteristic sufficient to obtain the light distribution of a second light function
  • the third lateral surfaces are defined by interfaces of the material of the Deflection prisms to a surrounding medium, typically air, formed.
  • the deflection prism can be made of several materials with different optical refractive indices.
  • Each optical interface forming between the materials with different refractive indices may form a third lateral surface and provide a deflection in a direction of a defined emission characteristic serving to fulfill a predetermined light distribution of a light function of the motor vehicle light.
  • a reflector can be accommodated on a side facing away from the lens of the deflection prism.
  • the deflecting prism can divert most of the light in the direction according to a radiation characteristic defined by a predetermined light distribution of at least one light function of the motor vehicle light; a remaining part of the light can emerge diffusely scattered in the direction of the reflector, for example, to produce a glowing backlight of the at least one realized by the deflecting prism To obtain light function by means of the reflected back into the reflector light.
  • the backlight may also be useful to z. B. to meet the specified requirements for certain lighting functions according to certain requirements of the size of the illuminated area, which are necessary for a license in particular of motor vehicle lights.
  • a backlit surface can in certain cases be added to the luminous area.
  • the deflecting prism can be suspended, cantilever or standing housed in the interior of the lamp.
  • the deflecting prism can be provided on its at least one of the lens facing and through this visible from outside the lamp chamber, forming a front or light exit side of the Umlenkprismas lateral surface with a structure that seen the structure of seen from outside the lamp interior through the lens through visible Inside the lamp interior or the lamp chamber corresponds, for example, a reflector housed therein.
  • At least one lamp of the motor vehicle light may comprise at least one LED as the light source.
  • the invention can be implemented by means of a deflecting prism housed in the interior of the light from a hidden from outside the lens arranged light source radiated light to obtain a legally prescribed light distribution according to a required for this purpose luminance distribution in one or more preferred directions defined radiation characteristic is deflected.
  • the deflection prism is arranged in any case spaced from the light source in the lamp chamber.
  • the deflection prism can be totally reflective.
  • the jacket of the deflecting prism can be mirrored in sections with a reflective coating, wherein the mirrored and non-mirrored sections can be assigned to different light functions. Stray light emerging from the deflection prism can serve for a glimmering background illumination of the luminaire interior, which only forms a decorative reflector.
  • the lamp chamber in conjunction with a colorless, transparent, for example, clear lens, can be colored arbitrarily, for example, black to produce a special depth effect in the cold state, or in the exterior color of a motor vehicle to the entire, for example designed as a taillight motor vehicle light visually with the Merging motor vehicle.
  • the fulfillment of the light function by the deflection prism reduces the requirement for the alignment accuracy of a reflector housed in the interior of the luminaire with respect to a light source.
  • Vehicle light 01 illustrated completely or in substantial parts has a light interior 04 surrounded by a light housing 02, which is only partially shown, and a clear, transparent light lens 03, for example, which is clear.
  • a light interior 04 which is subdivided, for example, into one or more luminaire chambers
  • at least one luminous means with at least one luminous means in the in Fig. 1 to Fig. 3 represented views through the lens 03 through non-visible light source 05 for at least one light function of the motor vehicle light 01 accommodated.
  • the at least one light source 05 is not seen in an outside of the motor vehicle light 01 through the lens 03 through Visible area of the lamp interior 04 arranged.
  • the non-visible area can be made for example by a diaphragm 06, which denies the view of the light source 05 from outside the lamp interior 04 through the lens 03 therethrough.
  • the deflecting prism 07 has a preferably flat base surface 08 and a cover surface 09 which is preferably parallel to this, and a jacket 10 connecting the base surface 08 and the cover surface 09 with at least three different lateral surfaces 11, 12, 13.
  • the light emitted by at least one light source 05 enters the deflecting prism 07 at at least one first lateral surface 11 forming a coupling surface for the light and at least one second lateral surface 12 forming a coupling-out surface for the light again from the deflecting prism at at least one first lateral surface 11 07 off.
  • a deflection of at least part of the light in the direction of the lens 03 preferably according to a radiation characteristic defined by, for example, a legally prescribed light distribution of at least one light function of the motor vehicle light, on at least one of the at least one first lateral surface 11 and the at least one second lateral surface 12 different, forming a deflection surface for the light, third lateral surface 13 of the shell 10 instead.
  • the lateral surfaces 11, 12, 13 are at preferred angles to each other.
  • phases, intermediate surfaces, etc. may be attached to the edges.
  • the at least one third lateral surface 13 is defined by boundary surfaces of the material of Umlenkprismas 07 to a surrounding medium, typically air, formed.
  • the deflection prism 07 may be made of a plurality of materials having different optical refractive indices. Each optical interface forming between the materials with different refractive indices may form a third lateral surface 13 and provide a deflection in a direction of a defined emission characteristic serving to fulfill a predetermined light distribution of a light function of the motor vehicle light.
  • the one or more light sources 05 may be mounted, for example, on the edge of a lamp chamber of the lamp interior 04.
  • the light emerging from the light source 05 may, for. B. prepared by a front lens, Aufsetzlinse, a CPC and / or reflector and / or bundled before it hits the Umlenkprisma 07.
  • a large part of the light emitted by the light source 05 can be collimated or bundled and sent in the direction of the deflection prism 07.
  • the at least one light source 05 and the at least one first lateral surface 11 associated therewith are aligned with one another such that the light emitted by the light source 05 strikes the first lateral surface 11 perpendicularly in order to achieve the highest possible degree of transmission for the optical path of the light.
  • the deflection of the light in the deflection prism 07 takes place by means of total reflection and / or directed reflection at one or more third lateral surfaces 13.
  • the jacket 10 of the deflecting prism 07 may be partially mirrored with a reflective coating.
  • the mirrored and non-mirrored sections can be assigned to different light functions of the motor vehicle light 01.
  • a partially reflective coating can be produced by a, for example strip-shaped, coating applied to the deflecting surface of deflecting prism 07 formed by one or more third lateral surfaces 13, in order thus to define part of the light in accordance with a light function defined by a first light function Redirecting radiation characteristic over the mirroring, and to direct a remaining part of the light according to a defined by a second light function emission characteristic that does not meet the mirroring, according to different.
  • the deflecting prism 07 forms in the hot state when the light source 05 is switched on, preferably even the entire luminous surface which fulfills a light distribution.
  • the deflecting prism 07 may be made of a colorless material, so that the legally prescribed colors of the light functions can be met by the emitted colors of the one or more light sources 05.
  • a first lateral surface 11 and / or a second lateral surface 12 of a first optical path can form a third lateral surface 13 of a second optical path.
  • Several beam paths in the deflecting prism 07 occur, for example, when a plurality of their light via different first lateral surfaces 11 in the Umlenkprisma 07 einstrahlende light sources 05 are provided, and / or when radiated into the Umlenkprisma 07 light exits via several different second lateral surfaces 12 from the Umlenkprisma 07.
  • a deflection prism 07 may have a plurality of first lateral surfaces 11 and / or second lateral surfaces 12 and / or third lateral surfaces 13, whereby the deflecting prism 07 may fulfill different predetermined light distributions of different light functions of the motor vehicle light 01.
  • the deflecting prism 07 can be designed such that it fulfills both the fulfillment of a first defined emission characteristic sufficient to obtain the light distribution of a first light function, for example a tail light function, and the fulfillment of a second condition sufficient to obtain the light distribution of a second light function, for example a side marker light function Emission characteristic complies.
  • a third lateral surface 13 serving as a light deflection surface for a first light function can also be used simultaneously as a second lateral surface 12 serving as a light output surface for a second light function.
  • the deflecting prism 07 can be arranged horizontally or vertically in various geometric positions, for example cantilevered, upright or suspended, but also through the lamp interior.
  • a reflector 14 may be provided for example in the lamp interior 04.
  • the reflector 14 may be formed by a reflective coating of at least a portion of the lamp interior 04.
  • the deflecting prism 07 can divert most of the light in the direction according to a radiation characteristic defined by a predetermined light distribution of at least one light function of the motor vehicle light 01, a remaining part of the light can emerge diffusely scattered in the direction of the reflector 14, for example, by a glimmering background illumination by the deflecting prism 07 realized to receive at least one light function by means of the reflected back into the reflector 14 light.
  • the deflecting prism 07 may be provided on its at least one of the lens 03 facing and visible through the outside of the lamp interior 04, a front or light exit side of Umlenkprismas 07 forming lateral surface 12 with a structure which the structure of the outside of the lamp interior 04 Seen through the lens 03 through visible inside of the lamp interior 04 and the lamp chamber corresponds, for example a herein harbored reflector 14. This can be in the cold state of the impression generated by the Umlenkprisma 07 a seemingly light source-free lighting chamber or a light source-free light interior 04 to be reinforced.
  • scattering structures, rolls, cushions or the like can be applied to the second lateral surface 12 forming a decoupling surface of the deflecting prism 07.
  • These elements are optically effective and can also pick up the pad division of an underlying reflector 14.
  • Fig. 2 and Fig. 3 have shown a Kissenander of seen from outside the motor vehicle light 01 through the lens 03 through behind the Umlenkprisma 07 arranged reflector 14.
  • this reflector 14 does not have to fulfill any real optical function and can therefore be designed exclusively according to design requirements.
  • This also emblems or logos can be used in one or more the lamp interior 04 optionally subdividing lighting chambers that are visible in the cold design, but not necessarily shine and also do not cause, for example, in hot condition optically effective surfaces are limited in their function.
  • the diaphragm 06 in addition to a lamination of the light source 05 can also fulfill other functions.
  • the surface of the diaphragm 06 facing the light source 05 may be embodied, for example, as a primary reflector in order, for example, to focus and / or scatter light emitted by the light source 05.
  • the invention is particularly industrially applicable in the field of production of motor vehicle lights.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
EP11194497.1A 2011-12-20 2011-12-20 Lampe de véhicule automobile Withdrawn EP2607779A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11194497.1A EP2607779A1 (fr) 2011-12-20 2011-12-20 Lampe de véhicule automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11194497.1A EP2607779A1 (fr) 2011-12-20 2011-12-20 Lampe de véhicule automobile

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EP2607779A1 true EP2607779A1 (fr) 2013-06-26

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099408B (de) * 1958-08-05 1961-02-09 Westfaelische Metall Ind K G H Signalleuchte, insbesondere fuer Kraftfahrzeuge
DE1868936U (de) * 1961-11-06 1963-03-14 Westfaelische Metall Ind K G H Kraftfahrzeugsignalleuchte.
EP0404990A1 (fr) 1989-06-30 1991-01-02 Hella KG Hueck & Co. Feu pour véhicule
DE4417695C2 (de) 1994-05-20 1998-01-29 Reitter & Schefenacker Gmbh Kraftfahrzeugleuchte
DE19646042A1 (de) * 1996-11-08 1998-05-14 Bosch Gmbh Robert Beleuchtungseinrichtung für Fahrzeuge
DE29919032U1 (de) * 1999-10-29 1999-12-30 Hella KG Hueck & Co., 59557 Lippstadt Innenleuchte für Kraftfahrzeuge
US6050706A (en) * 1996-10-17 2000-04-18 Koito Manufacturing Co., Ltd. Vehicle turn signal lamp having light bulb covered with transparent cap and transparent lens for enhancing vehicle lamp appearance
DE20013330U1 (de) 2000-08-02 2001-01-11 FER Fahrzeugelektrik GmbH, 99817 Eisenach Kraftfahrzeugleuchte
DE10015759A1 (de) 2000-03-30 2001-10-11 Sidler Gmbh & Co Kraftfahrzeugleuchte mit indirektem Innenlicht
DE20200571U1 (de) * 2002-01-15 2002-04-11 FER Fahrzeugelektrik GmbH, 99817 Eisenach Fahrzeugleuchte
JP2006236588A (ja) * 2005-02-22 2006-09-07 Koito Mfg Co Ltd 光照明装置及び車両用灯具
DE202005021061U1 (de) * 2005-02-15 2007-01-25 Wagner, Norbert Beleuchtungseinrichtung mit einer Lichtquelle und einem Leuchtengehäuse
DE102007019687A1 (de) * 2007-04-24 2008-10-30 Hella Kgaa Hueck & Co. Beleuchtungseinrichtung für Fahrzeuge
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* Cited by examiner, † Cited by third party
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DE1099408B (de) * 1958-08-05 1961-02-09 Westfaelische Metall Ind K G H Signalleuchte, insbesondere fuer Kraftfahrzeuge
DE1868936U (de) * 1961-11-06 1963-03-14 Westfaelische Metall Ind K G H Kraftfahrzeugsignalleuchte.
EP0404990A1 (fr) 1989-06-30 1991-01-02 Hella KG Hueck & Co. Feu pour véhicule
DE4417695C2 (de) 1994-05-20 1998-01-29 Reitter & Schefenacker Gmbh Kraftfahrzeugleuchte
US6050706A (en) * 1996-10-17 2000-04-18 Koito Manufacturing Co., Ltd. Vehicle turn signal lamp having light bulb covered with transparent cap and transparent lens for enhancing vehicle lamp appearance
DE19646042A1 (de) * 1996-11-08 1998-05-14 Bosch Gmbh Robert Beleuchtungseinrichtung für Fahrzeuge
DE29919032U1 (de) * 1999-10-29 1999-12-30 Hella KG Hueck & Co., 59557 Lippstadt Innenleuchte für Kraftfahrzeuge
DE10015759A1 (de) 2000-03-30 2001-10-11 Sidler Gmbh & Co Kraftfahrzeugleuchte mit indirektem Innenlicht
DE20013330U1 (de) 2000-08-02 2001-01-11 FER Fahrzeugelektrik GmbH, 99817 Eisenach Kraftfahrzeugleuchte
DE20200571U1 (de) * 2002-01-15 2002-04-11 FER Fahrzeugelektrik GmbH, 99817 Eisenach Fahrzeugleuchte
DE202005021061U1 (de) * 2005-02-15 2007-01-25 Wagner, Norbert Beleuchtungseinrichtung mit einer Lichtquelle und einem Leuchtengehäuse
JP2006236588A (ja) * 2005-02-22 2006-09-07 Koito Mfg Co Ltd 光照明装置及び車両用灯具
DE102007019687A1 (de) * 2007-04-24 2008-10-30 Hella Kgaa Hueck & Co. Beleuchtungseinrichtung für Fahrzeuge
DE102009035741A1 (de) 2009-08-01 2011-02-03 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugleuchte

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