EP3526514B1 - Projecteur de vehicle avec filtre de couleur pour reduire les franges colorées - Google Patents

Projecteur de vehicle avec filtre de couleur pour reduire les franges colorées Download PDF

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Publication number
EP3526514B1
EP3526514B1 EP17781467.0A EP17781467A EP3526514B1 EP 3526514 B1 EP3526514 B1 EP 3526514B1 EP 17781467 A EP17781467 A EP 17781467A EP 3526514 B1 EP3526514 B1 EP 3526514B1
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EP
European Patent Office
Prior art keywords
wavelength range
color filter
lens
focal point
bis
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EP17781467.0A
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German (de)
English (en)
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EP3526514A1 (fr
Inventor
Wilfried Haese
Rafael Oser
Michael Roppel
Alexander Von Hoffmann
Martin Gebhard
Bernhard Heck
Alena Taranka
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Georg Simon Ohm Hochschule fuer Angewandte Wissenschaften Fachhochschule Nurnberg
Covestro Intellectual Property GmbH and Co KG
Original Assignee
Georg Simon Ohm Hochschule fuer Angewandte Wissenschaften Fachhochschule Nurnberg
Covestro Intellectual Property GmbH and Co KG
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Publication of EP3526514A1 publication Critical patent/EP3526514A1/fr
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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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout 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
    • F21S41/10—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
    • F21S41/10—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
    • F21S41/16—Laser light sources
    • 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
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • 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
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a projection headlight module, comprising a reflector with a first and a second focal point, an LED light source whose light is composed of a first wavelength range a and light from a second wavelength range b, the light source being in the first focal point of the Reflector or is arranged approximately in the first focal point of the reflector, a lens which has its focal point in common with the second focal point of the reflector, and an aperture system.
  • the subject matter of the invention is also the use of such projection headlight modules.
  • the projection module of a motor vehicle headlight usually comprising a light source, a reflector and an optical lens, usually has a relatively clearly formed light-dark boundary in the light path, which is produced by using a diaphragm.
  • the stop is usually located between the lens and reflector of the projection module where the second focal point of the reflector and the focal point of the lens coincide.
  • the aperture is positioned in the lower part of the light path between the light source and the reflector.
  • the shape of the light-dark boundary is determined by the contour of the lens. Due to the inverting properties of the lens, the cast shadow is shifted to the upper light path.
  • a color fringe is a band of colored light caused by chromatic aberration.
  • blue color fringes in particular are not only perceived as annoying, but can also confuse oncoming traffic, since at first glance they can be mistaken for the blue lights of the police or ambulance.
  • the DE102013227194 A1 describes a motor vehicle headlamp with two light wavelength-selective screens, each having a central light-transmissive area surrounded by an area with a color filter or interference filter in order to compensate for longitudinal and lateral color errors caused by chromatic aberration.
  • the U.S. 7,175,323 B2 describes a motor vehicle projection module that uses a transparent substrate with applied masking to produce the light-dark boundary as a screen.
  • the sharpness of the light-dark boundary should be influenced by the design of the masking and the color fringe should also be softened.
  • the use of a color filter somewhere in the light path, on the inside of the lens and/or the substrate to address chromatic aberration is described.
  • the task was therefore to provide a projection module for a lighting device, in particular for a motor vehicle headlight, in which the color fringes, in particular the blue fringes, are effectively reduced with the least possible change in the contrast or sharpness of the light-dark boundary .
  • the present invention is preferably concerned with such projection modules in which an ellipsoidal reflector or a free-form surface reflector is used.
  • This type of reflector has two conjugate foci. After being reflected, the light from one focal point passes through the other focal point. Due to the shape of the reflector in combination with the arrangement of the light source in or close to the first focal point, a relatively large part of the total emitted light is collected by the reflector. If light of different wavelengths is used, a different focal point results for the reflected light of different wavelengths.
  • the reflector is a free-form surface reflector.
  • the color fringe in particular the blue fringe
  • the typically are homogeneous or perforated, color filters - possibly with screens - are used as a screen system and positioned in a targeted manner.
  • the spectral absorption coefficients are selected in such a way that the spectral absorption coefficient of the color filter is adapted to the spectral light intensity distribution of the light source, ie that the respective Absorption coefficient is lower in the spectral ranges in which spectrally resolved less light intensity is emitted by the light source.
  • this method is less preferred due to the technically significantly more complex implementation.
  • the VIS range is the range of the spectrum that is essential for the present invention.
  • the "dominant wavelength" of the respective wavelength range of the light is to be understood as the wavelength that is determined by the intersection of a straight line between the achromatic point and the color point of the light source in this wavelength range with the spectral curve for a 2° observer (definition according to CIE 15:2004).
  • the “peak wavelength” is the wavelength of maximum intensity.
  • a radiation-equivalent variable such as flux or irradiance is measured with spectral resolution and displayed in a Cartesian coordinate system.
  • the radiation-equivalent variable is plotted on the y-axis and the wavelengths on the x-axis.
  • the absolute maximum of this curve is the "peak wavelength” (definition according to DIN 5031-1 (1982)).
  • the light intensity is determined according to DIN 5031-3 (1982).
  • the present invention is concerned in particular with novel light sources, LED light sources, which provide white or approximately white light, for example by combining blue-emitting InGaN chips with suitable phosphor converters which generate yellow light.
  • light sources which have a phosphor excited by a laser.
  • the light from such light sources usually has a correlated color temperature, determined according to CIE 15:2004, from 2500 K to 10000 K, preferably from 5000 to 6000 K.
  • the reflector is preferably an ellipsoidal reflector or a free-form surface reflector.
  • this has further lenses in addition to the one lens.
  • the projection headlight module comprises a plurality of lenses, these can be arranged either directly adjacent to one another or at a distance from one another. These lenses can be made of the same or different materials.
  • a glass material a thermoplastic material, a duroplastic material, for example an aliphatic polycarbonate, or a silicone can be used as the lens material, with compositions containing these materials and usual additives are meant.
  • thermoplastic materials are polyamides, polyesters, polyphenylene sulfides, polyphenylene oxides, polyether sulfones, polysulfones, poly(meth)acrylates, polyimides, polyetherimides, polyether ketones such as PEK, PEEK or PEKK, and polycarbonates.
  • a polycarbonate-based composition is preferably used as the lens material. "Based on polycarbonate” means that the thermoplastic composition contains at least 50% by weight, preferably at least 60% by weight, more preferably at least 75% by weight, very particularly preferably at least 85% by weight, of polycarbonate, in particular aromatic polycarbonate. contains.
  • polycarbonates are both homopolycarbonates and copolycarbonates and/or polyester carbonates; the polycarbonates can be linear or branched in a known manner. Mixtures of polycarbonates can also be used according to the invention.
  • thermoplastic polycarbonates including the thermoplastic, aromatic polyester carbonates, have average molecular weights M w (determined by measuring the relative viscosity at 25° C. in CH 2 Cl 2 and a concentration of 0.5 g per 100 ml CH 2 Cl 2 ) of 20,000 g/ mol to 32,000 g/mol, preferably from 23,000 g/mol to 31,000 g/mol, in particular from 24,000 g/mol to 31,000 g/mol.
  • a portion, up to 80 mol %, preferably from 20 mol % to 50 mol %, of the carbonate groups in the polycarbonates used according to the invention can be replaced by aromatic dicarboxylic acid ester groups.
  • aromatic polyester carbonates Such polycarbonates, which contain both acid residues of carbonic acid and acid residues of aromatic dicarboxylic acids built into the molecular chain, are referred to as aromatic polyester carbonates. In the context of the present invention, they are subsumed under the generic term of thermoplastic, aromatic polycarbonates.
  • the polycarbonates are produced in a known manner from dihydroxyaryl compounds, carbonic acid derivatives, any chain terminators and any branching agents, with some of the carbonic acid derivatives being replaced by aromatic dicarboxylic acids or derivatives of the dicarboxylic acids to produce the polyester carbonates, depending on the amount to be replaced in the aromatic polycarbonates Carbonate structural units through aromatic dicarboxylic acid ester structural units.
  • dihydroxyaryl compounds are: dihydroxybenzenes, dihydroxydiphenyls, bis(hydroxyphenyl)alkanes, bis(hydroxyphenyl)cycloalkanes, bis(hydroxyphenyl)aryls, bis(hydroxyphenyl) ethers, bis(hydroxyphenyl) ketones, bis -(Hydroxyphenyl) sulfides, bis(hydroxyphenyl) sulfones, bis(hydroxyphenyl) sulfoxides, 1,1'-bis(hydroxyphenyl)diisopropylbenzenes and their nucleus-alkylated and nucleus-halogenated compounds.
  • Dihydroxyaryl compounds suitable for the production of the polycarbonates to be used according to the invention are, for example, hydroquinone, resorcinol, dihydroxydiphenyl, bis(hydroxyphenyl) alkanes, bis(hydroxyphenyl) cycloalkanes, bis(hydroxyphenyl) sulfides, bis(hydroxyphenyl) ethers, bis -(Hydroxyphenyl) ketones, bis(hydroxyphenyl) sulfones, bis(hydroxyphenyl) sulfoxides, a,a'-bis(hydroxyphenyl)diisopropylbenzenes and their alkylated, nucleus-alkylated and nucleus-halogenated compounds.
  • Preferred dihydroxyaryl compounds are 4,4'-dihydroxydiphenyl, 2,2-bis(4-hydroxyphenyl)-1-phenylpropane, 1,1-bis(4-hydroxyphenyl)phenylethane, 2,2-bis(4-hydroxyphenyl).
  • Particularly preferred diphenols are 4,4'-dihydroxydiphenyl, 1,1-bis(4-hydroxyphenyl)phenylethane, 2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(3,5 -dimethyl-4-hydroxyphenyl)propane, 1,1-bis(4-hydroxyphenyl)cyclohexane and 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane (Bisphenol TMC).
  • the monofunctional chain terminators required to regulate the molecular weight such as phenols or alkyl phenols, in particular phenol, p-tert. Butylphenol, iso-octylphenol, cumylphenol, their chlorocarbonic acid esters or acid chlorides of monocarboxylic acids or mixtures of these chain terminators are either added to the reaction with the bisphenolate or the bisphenolates or added at any point in the synthesis as long as there are still phosgene or chlorocarbonic acid end groups in the reaction mixture are present, or in the case of acid chlorides and chloroformic acid esters as chain terminators, as long as there are sufficient phenolic end groups of the polymer being formed.
  • the chain terminator(s) are preferably added after the phosgenation at a point or at a time when there is no longer any phosgene but the catalyst has not yet been metered in, or they are metered in before the catalyst, together with the catalyst or in parallel.
  • Branching agents or branching agent mixtures to be used are added to the synthesis in the same way, but usually before the chain terminators.
  • Trisphenols, quaternary phenols or acid chlorides of tri- or tetracarboxylic acids are usually used, or else mixtures of the polyphenols or the acid chlorides.
  • Examples of some of the compounds having three or more than three phenolic hydroxyl groups that can be used as branching agents are phloroglucinol, 4,6-dimethyl-2,4,6-tri-(4-hydroxyphenyl)-2-heptene, 4,6-dimethyl-2, 4,6-tri(4-hydroxyphenyl)heptane, 1,3,5-tris(4-hydroxyphenyl)benzene, 1,1,1-tri(4-hydroxyphenyl)ethane, tris(4 -hydroxyphenyl)phenylmethane, 2,2-bis[4,4-bis(4-hydroxyphenyl)cyclohexyl]propane, 2,4-bis(4-hydroxyphenylisopropyl)phenol, tetra-(4 -hydroxyphenyl) -methane.
  • trifunctional compounds are 2,4-dihydroxybenzoic acid, trimesic acid, cyanuric chloride and 3,3-bis(3-methyl-4-hydroxyphenyl)-2-oxo-2,3-dihydroindole.
  • Preferred branching agents are 3,3-bis(3-methyl-4-hydroxyphenyl)-2-oxo-2,3-dihydroindole and 1,1,1-tri(4-hydroxyphenyl)ethane.
  • the amount of any branching agents to be used is 0.05 mol % to 2 mol %, again based on moles of diphenols used in each case.
  • the branching agents can either be initially introduced with the diphenols and the chain terminators in the aqueous alkaline phase or, dissolved in an organic solvent, be added before the phosgenation.
  • aromatic dicarboxylic acids suitable for preparing the polyester carbonates are orthophthalic acid, terephthalic acid, isophthalic acid, tert-butylisophthalic acid, 3,3'-diphenyldicarboxylic acid, 4,4'-diphenyldicarboxylic acid, 4,4-benzophenonedicarboxylic acid, 3,4'-benzophenonedicarboxylic acid, 4,4 '-Diphenyletherdicarboxylic acid, 4,4'-diphenylsulfonedicarboxylic acid, 2,2-bis(4-carboxyphenyl)propane, trimethyl-3-phenylindane-4,5'-dicarboxylic acid.
  • aromatic dicarboxylic acids particular preference is given to using terephthalic acid and/or isophthalic acid.
  • dicarboxylic acids are the dicarboxylic acid dihalides and the dicarboxylic acid dialkyl esters, in particular the dicarboxylic acid dichlorides and the dicarboxylic acid dimethyl esters.
  • the replacement of the carbonate groups by the aromatic dicarboxylic acid ester groups is essentially stoichiometric and also quantitative, so that the molar ratio of the reactants is also found in the finished polyester carbonate.
  • the aromatic dicarboxylic acid ester groups can be incorporated either randomly or in blocks.
  • Preferred production methods for the polycarbonates to be used according to the invention, including the polyester carbonates, are the known interfacial process and the known melt transesterification process (cf. e.g. WO 2004/063249 A1 , WO 2001/05866 A1 , US 5,340,905A , U.S. 5,097,002A , US-A 5,717,057 A ).
  • the acid derivatives used are preferably phosgene and optionally dicarboxylic acid dichlorides, in the latter case preferably diphenyl carbonate and optionally dicarboxylic acid diesters.
  • Catalysts, solvents, processing, reaction conditions, etc. for polycarbonate production and polyester carbonate production are adequately described and known in both cases.
  • a copolycarbonate which is stable at high temperatures is particularly preferably used as the lens material.
  • Copolycarbonates with monomer units of the formula (1e) and in particular their production are in the WO 2015/052106 A2 described.
  • the copolycarbonate preferably contains monomer units of the general formula (1a).
  • the copolycarbonates with monomer units of the general formulas (1b), (1c) and/or (1d) have high heat resistance and low thermal shrinkage.
  • the Vicat temperature determined according to ISO 306:2013, is usually between 170°C and 230°C.
  • the monomer unit(s) of the general formula (1b), (1c) and/or (1d) are introduced via one or more corresponding diphenols of the general formulas (1b ⁇ ), (1c') and (1d'): in which R 3 is a C 1 - to C 4 -alkyl radical, aralkyl radical or aryl radical, preferably a methyl radical or phenyl radical, very particularly preferably a methyl radical.
  • the monomer unit(s) of the general formula (2) are introduced via one or more corresponding dihydroxyaryl compounds of the general formula (2a): where R 7 , R 8 and Y each have the meaning already mentioned in connection with formula (2).
  • dihydroxyaryl compounds of the formula (2a) which can be used in addition to the dihydroxyaryl compounds of the formula (1a'), (1b'), (1c') and/or (1d') are hydroquinone, resorcinol, dihydroxybiphenyls, bis- (hydroxyphenyl) alkanes, bis(hydroxyphenyl) sulfides, Bis(hydroxyphenyl) ether, bis(hydroxyphenyl) ketones, bis(hydroxyphenyl) sulfones, bis(hydroxyphenyl) sulfoxides, ⁇ , ⁇ '-bis(hydroxyphenyl)diisopropylbenzenes, and their nucleus-alkylated and nucleus-halogenated ones Compounds and also called ⁇ , ⁇ -bis(hydroxyphenyl)polysiloxanes.
  • Examples of preferred dihydroxyaryl compounds of the formula (2a) are 4,4'-dihydroxybiphenyl (DOD), 4,4'-dihydroxybiphenyl ether (DOD ether), 2,2-bis(4-hydroxyphenyl)propane (bisphenol A), 2 ,4-bis(4-hydroxyphenyl)-2-methylbutane, 1,1-bis(4-hydroxyphenyl)-1-phenylethane, 1,1-bis[2-(4-hydroxyphenyl)-2-propyl]- benzene, 1,3-bis[2-(4-hydroxyphenyl)-2-propyl]benzene (bisphenol M), 2,2-bis(3-methyl-4-hydroxyphenyl)propane, 2,2-bis -(3-chloro-4-hydroxyphenyl)propane, bis(3,5-dimethyl-4-hydroxyphenyl)methane, 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, bis -(3,5-di
  • dihydroxyaryl compounds examples include 2,2-bis(4-hydroxyphenyl)propane (bisphenol A), 4,4'-dihydroxybiphenyl (DOD), 4,4'-dihydroxybiphenyl ether (DOD ether), 1,3-bis [2-(4-hydroxyphenyl)-2-propyl]benzene (bisphenol M), 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, 1,1-bis(4-hydroxyphenyl). )-1-phenylethane, 2,2-bis(3,5-dichloro-4-hydroxyphenyl)propane and 2,2-bis(3,5-dibromo-4-hydroxyphenyl)propane.
  • the dihydroxyaryl compound (2c) is particularly preferred here.
  • the dihydroxyaryl compounds of the general formula (2a) can be used either alone or as a mixture with one another.
  • the dihydroxyaryl compounds are known from the literature or can be prepared by methods known from the literature (see, for example, H. J. Buysch et al., Ullmann's Encyclopedia of Industrial Chemistry, VCH, New York 1991, 5th Ed., Vol. 19, p. 348 ).
  • the total proportion of the monomer units of the formulas (1a), (1b), (1c) and (1d) in the copolycarbonate is preferably 0.1-88 mol %, particularly preferably 1-86 mol %, very particularly preferably 5-84 mol -% and in particular 10-82 mol% (based on the sum of the moles of dihydroxyaryl compounds used).
  • the diphenolate units of the copolycarbonates according to component A are preferably derived from monomers having the general structures of the above-described formulas (1a′), more preferably (1a′′), and (2a), very particularly preferably (2c).
  • the diphenolate units of the copolycarbonates according to component A are derived from monomers having the general structures of the formulas (2a) and (1b'), (1c') and/or (1d') described above.
  • a preferred copolycarbonate is made up of 17 to 62% by weight of bisphenol A and 83 to 38% by weight of comonomer of the general formula (1b), (1c) and/or (1d), the amounts of bisphenol A and comonomer of the general formulas (1b), (1c) and/or (1d) add up to 100% by weight.
  • the proportion of the monomer units of the formula (1a), preferably bisphenol TMC, in the copolycarbonate is 10-95% by weight, particularly preferably 44-85% by weight.
  • the monomer of formula (2) used is preferably bisphenol A, the proportion of which is preferably 15 to 56% by weight.
  • the copolycarbonate is particularly preferably composed of the monomers bisphenol TMC and bisphenol A.
  • the copolycarbonates used according to the invention preferably have a Vicat softening point, determined according to ISO 306:2013, from 150 to 230° C., more preferably from 160° C. to 220° C., particularly preferably 175° C. to 220° C., very particularly preferably from 180°C to 218°C.
  • copolycarbonates can be in the form of block and random copolycarbonates. Statistical copolycarbonates are particularly preferred.
  • the ratio of the frequency of the diphenolate monomer units in the copolycarbonate results from the molar ratio of the dihydroxyaryl compounds used.
  • the relative solution viscosity of the copolycarbonates is preferably in the range from 1.15 to 1.35.
  • the weight-average molar masses Mw of the copolycarbonates are preferably 15,000 to 40,000 g/mol, particularly preferably 17,000 to 36,000 g/mol, very particularly preferably 17,000 to 34,000 g/mol, and are determined by means of GPC in methylene chloride against a polycarbonate calibration.
  • the panel system is a combination of a first panel with a first color filter and a second panel with a second color filter, i.e. the panel system comprises a first and a second color filter.
  • the first and/or the second screen can each consist of only one color filter.
  • the first and/or the second screen each have a frame next to the color filter.
  • one or more further screens are additionally provided, which are preferably located between the first and the second screen.
  • the first and/or the second color filter has a flat surface or a curved surface, "surface” meaning the surface through which the optical axis runs.
  • the first and second color filters are preferably shaped the same, i.e. the contour of both color filters is the same when viewed along the optical axis, with the thickness of both panels, i.e. the extension along the optical axis (panel depth ), same or different.
  • the wavelength range a preferably corresponds to blue light, while the wavelength range b preferably corresponds to yellow light. If the two color filters are optimally positioned in the respective focal points, the color fringe can be completely eliminated.
  • An “arrangement of the light source in the first focal point of the lens” ideally leads to a point light source in a parallel beam path of the projected light. According to the invention, such arrangements are included in which the light source in the vicinity of the first focus - "approximately in the first focus” - is arranged. Such arrangements lead to an approximately parallel beam path of the projected light. "Approximately” here means a deviation of 5%, preferably 2%, more preferably 1%, based on the total distance between the mutually arranged surfaces of the lens and reflector along the optical axis. If the system comprises several lenses, this means the lens that is closest to the reflector along the optical axis. This definition of "approximately” also applies to the other uses of the word within the scope of the description of this invention, as is done in relation to the positioning of the various elements of the projection headlight module.
  • the color filters used differ in their respective spectral transmittance, adapted to the spectral properties of the focal points of emissions.
  • One or both color filters are preferably selected from the group of dichroic filters or gel-type filters.
  • the average degree of internal transmittance i.e. the transmission without surface reflection, determined according to CIE 38:1977, preferably varies within a color filter perpendicular to the optical axis.
  • the color filter as such simultaneously assumes the function of a diaphragm, which is required to generate low beam. Therefore, apart from the color filter, the panel does not have to include any further components, in particular no frame.
  • a variation of the average spectral pure transmittance of the color filter perpendicular to the optical axis can preferably be achieved by printing, preferably with substrate material otherwise remaining the same over the entire color filter, by laser structuring and/or thin-film technology or by varying the filter thickness depending on the location. The latter can be achieved in particular by the color filter being designed in the shape of a wedge.
  • spectral range of the light for a color range is particularly wide and several wavelengths are similarly dominant
  • other color filters can also be used, which are arranged in the corresponding focal points of the other "dominant" wavelengths.
  • a color fringe can be further reduced in a projection headlight module according to the invention if the color filters are provided with a bevel.
  • the bevel is preferably wedge-shaped.
  • the transmittance determined according to CIE 38:1977, is also location-dependent in the area of the bevel.
  • a "bevel” is a beveled surface on an edge of a color filter.
  • a chamfer preferably has an angle of 45° to the plane.
  • the chamfering is preferably carried out by grinding, lasering or by means of plastic injection molding.
  • the bevels of the color filters are preferably oriented in the same way. However, even with a different orientation of the bevels, a reduction in the intensity of the color fringe can be measured compared to a system made of unchamfered color filters. If the fibers are oriented differently, however, more scattering effects occur.
  • thermoplastic compositions for example based on polycarbonate, are preferably used as the material for the color filters.
  • a color filter made of a polycarbonate composition is preferably used.
  • "Based on” means that the thermoplastic composition contains at least 50% by weight, preferably at least 60% by weight, more preferably at least 75% by weight, very particularly preferably at least 85% by weight, of polycarbonate.
  • polycarbonate compositions which can be used for the color filters as has been said for the polycarbonate compositions of the lens.
  • the use of high-temperature stable copolycarbonates is also particularly preferred here.
  • thermoplastic compositions for the color filters are, for example, those based on polystyrene, polyamides, polyesters, especially polyethylene terephthalate, polyphenylene sulfides, polyphenylene oxides, polysulfones, poly(meth)acrylates, especially polymethyl methacrylate, polyimides, polyetherimides, polyetherketones.
  • a glass material is preferably used as the material for the color filters.
  • the light beams are preferably not deflected from their direction by the thermoplastic material as far as possible when they pass through the color filters.
  • the surface of the color filter must be as smooth as possible and the thermoplastic material should be free of volume scatterers, in particular scattering particles and air inclusions.
  • one of the color filters is based on a thermoplastic material and the other color filter is based on a glass material.
  • Projection headlight modules according to the invention are preferred for lighting in the automotive sector, commercial vehicles, rail vehicles, bicycles, in particular as headlights, on ships, as theater headlights, as architectural lighting, e.g. for the illumination of facades or shop windows, or as aircraft lighting, e.g. as cabin lighting or landing lights.
  • figure 1 shows a projection headlight module according to the invention.
  • the optical axis runs along the z-axis.
  • An ellipsoidal reflector 1, a lens 2 and a light source 3 lie on the optical axis.
  • Apertures with color filters 4a, 4b are positioned in the determined focal points 5a, 5b of the respective dominant wavelength of the individual spectral ranges perpendicular to the optical axis between the ellipsoidal reflector 1 and the lens 2.
  • figure 2 shows a variant figure 1 , in which the diaphragms also include frames 6a, 6b in addition to the color filters 4a, 4b.
  • the color filters 4a, 4b are provided with a bevel 7a, 7b at a 45° angle.
  • the bevels 7a, 7b of the two color filters 4a, 4b are oriented differently here.
  • the bevel 7a of the color filter 4a is oriented toward the reflector 1, while the bevel 7b of the color filter 4b is oriented toward the lens 2.
  • bevels 7a, 7b are oriented in the same way and both point in the direction of the reflector 1.
  • the projection headlight module for a low beam was simulated.
  • the setup included a spatially expanded -cylindrical- light source with a radius of 0.61 mm and a length of 5 mm, whose surface emits with Lambertian emission properties and the spectrum of an Osram OSTAR LED ultra white with a luminous flux of 1150 Im.
  • the center of gravity of the cylindrical light source was arranged in the first focal point of a free-form surface reflector.
  • the first focal length of the reflector whose shape in the Figures 5a to 5d shown was 15 mm, the second focal length was 70 mm.
  • the radius of the reflector in the x-direction was 46 mm and in the y-direction 35 mm.
  • the lens was an aspherical lens with a lens diameter of 70 mm and a focal length of 30 mm.
  • the lens material was a polycarbonate composition with a refractive index of 1.586 (at a wavelength of 589 nm).
  • the refractive index of the lens varied depending on the wavelength ⁇ . ⁇ [nm] n 400 1,619 500 1,596 600 1,584 700 1,576 800 1,571
  • the distance between lens and reflector was 100 mm.
  • the system was suitable for generating a light distribution according to ECE R98.
  • the screens each had a material thickness of 0.5 mm and consisted of a color filter made of a polycarbonate material.
  • the first color filter had an average spectral transmittance, determined according to CIE 38:1977, which was 5% for the wavelength range a - 380 nm to 474 nm and a value of 100% for the wavelength range b - 475 nm to 780 nm. exhibited
  • the second color filter had a spectral transmittance determined according to CIE 38:1977, which has a value of 100% for the wavelength range a and a value of 5% for the wavelength range b.
  • a second test setup corresponding to the test described above was chosen, in which the two color filters had a bevel.
  • the bevels (45°) of the two color filters were mirrored to each other ( 3 ).
  • a third test set-up corresponding to the tests described above was chosen, in which the two color filters also had a bevel.
  • the bevels (45°) of the two color filters had the same orientation ( 4 ).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (15)

  1. Module projecteur, comprenant un réflecteur ayant un premier foyer et un second foyer,
    une source de lumière LED, dont la lumière est composée d'une première plage de longueurs d'onde a de 380 nm à 474 nm et d'une lumière d'une seconde plage de longueurs d'onde b de 475 nm à 780 nm, la source de lumière étant disposée au premier foyer du réflecteur ou au voisinage du premier foyer du réflecteur,
    une lentille, qui a son foyer commun au second foyer du réflecteur, et
    un système de diaphragme, caractérisé en ce que le système de diaphragme comprend un premier et un second filtre coloré,
    dans lequel
    le premier filtre coloré est disposé au foyer de la lentille ou au voisinage du foyer de la lentille pour une caractéristique de la plage de longueurs d'onde a ou au centre de gravité, moyenné en fonction de l'intensité lumineuse, des foyers des faisceaux lumineux pour les longueurs d'onde individuelles de la plage de longueurs d'onde a de la lentille
    et
    le second filtre coloré est disposé au foyer de la lentille ou au voisinage du foyer de la lentille pour une caractéristique de la plage de longueurs d'onde b ou au centre de gravité, moyenné en fonction de l'intensité lumineuse, des foyers des faisceaux lumineux, ou au voisinage de ce centre de gravité, pour les longueurs d'onde individuelles de la plage de longueurs d'onde b de la lentille, l'intensité lumineuse étant dans chaque cas déterminée selon DIN 5031-3 (1982),
    et dans lequel
    le premier filtre coloré présente un facteur de transmission interne spectral moyen, déterminé selon CIE 38:1977, qui pour la plage de longueurs d'onde a présente une valeur d'au plus 15 % et pour la plage de longueurs d'onde b une valeur d'au moins 85 %,
    et
    le second filtre coloré présente un facteur de transmission interne spectral moyen, déterminé selon CIE 38:1977, qui présente pour la plage de longueurs d'onde a une valeur d'au moins 85 % et pour la plage de longueurs d'onde b une valeur d'au plus 15 %.
  2. Module projecteur selon la revendication 1, caractérisé en ce que le filtre coloré est disposé au foyer de la lentille ou au voisinage du foyer de la lentille pour la longueur d'onde dominante de la plage de longueurs d'onde a
    et le second filtre coloré est disposé au foyer de la lentille ou au voisinage du foyer de la lentille pour la longueur d'onde dominante de la plage de longueurs d'onde b.
  3. Module projecteur selon la revendication 1, caractérisé en ce que le premier filtre coloré est disposé au foyer de la lentille pour la longueur d'onde de l'intensité maximale de la plage de longueurs d'onde a et le second filtre coloré est disposé au foyer de la lentille pour la longueur d'onde de l'intensité maximale de la plage de longueurs d'onde b.
  4. Module projecteur selon la revendication 1, caractérisé en ce que le premier filtre coloré est disposé au centre de gravité, moyenné en fonction de l'intensité lumineuse, des foyers des faisceaux lumineux, ou au voisinage de ce centre de gravité, pour les longueurs d'onde individuelles de la plage de longueurs d'onde a de la lentille,
    et le second filtre coloré est disposé au centre de gravité, moyenné en fonction de l'intensité lumineuse, des foyers des faisceaux lumineux, ou au voisinage de ce centre de gravité, pour les longueurs d'onde individuelles de la plage de longueurs d'onde b de la lentille, l'intensité lumineuse étant déterminée selon DIN 5031-3 (1982).
  5. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que le réflecteur est un réflecteur ellipsoïdal.
  6. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que le réflecteur est un réflecteur à surface de forme libre.
  7. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que les filtres colorés présentent un biseau.
  8. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que les biseaux des filtres colorés ont la même orientation.
  9. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que la source de lumière comprend un luminophore excité par un laser.
  10. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que la lumière de la source de lumière présente une température de couleur corrélée, déterminée selon CIE 15:2004, de 5 000 à 6 000 K.
  11. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que le premier filtre coloré présente un facteur de transmission interne spectral moyen, déterminé selon CIE 38:1977, qui présente pour la plage de longueurs d'onde a une valeur d'au plus 5 % et pour la plage de longueurs d'onde b une valeur d'au moins 99 %, et
    le second filtre présente un facteur de transmission interne spectral moyen, déterminé selon CIE 38:1977, qui présente pour la plage de longueurs d'onde a une valeur d'au moins 99 % et pour la plage de longueurs d'onde b une valeur d'au plus 5 %.
  12. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que le matériau du premier et/ou du second filtre coloré est une composition à base d'un polycarbonate.
  13. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que le matériau de la lentille est une composition à base d'un polycarbonate.
  14. Module projecteur selon l'une des revendications précédentes, caractérisé en ce que le facteur de transmission interne spectral, déterminé selon CIE 38:1977, à l'intérieur d'au moins un filtre coloré varie perpendiculairement à l'axe optique.
  15. Utilisation d'un module projecteur selon l'une des revendications précédentes pour l'éclairage dans le domaine automobile, de véhicules utilitaires, de véhicules sur rail, de deux roues, de bateaux, en tant que projecteur de théâtre, en tant qu'éclairage en architecture ou pour l'éclairage d'aéronefs.
EP17781467.0A 2016-10-14 2017-10-09 Projecteur de vehicle avec filtre de couleur pour reduire les franges colorées Active EP3526514B1 (fr)

Applications Claiming Priority (2)

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EP16193831 2016-10-14
PCT/EP2017/075652 WO2018069235A1 (fr) 2016-10-14 2017-10-09 Dispositif de réduction de franges colorées

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EP3526514B1 true EP3526514B1 (fr) 2022-08-24

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112312032B (zh) * 2020-10-21 2022-03-25 Tcl通讯（宁波）有限公司 一种屏下摄像头摄像方法、装置、存储介质及移动终端

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1007996B (de) 1955-03-26 1957-05-09 Bayer Ag Verfahren zur Herstellung thermoplastischer Kunststoffe
US2991273A (en) 1956-07-07 1961-07-04 Bayer Ag Process for manufacture of vacuum moulded parts of high molecular weight thermoplastic polycarbonates
US3148172A (en) 1956-07-19 1964-09-08 Gen Electric Polycarbonates of dihydroxyaryl ethers
US2999846A (en) 1956-11-30 1961-09-12 Schnell Hermann High molecular weight thermoplastic aromatic sulfoxy polycarbonates
US2999835A (en) 1959-01-02 1961-09-12 Gen Electric Resinous mixture comprising organo-polysiloxane and polymer of a carbonate of a dihydric phenol, and products containing same
GB1122003A (en) 1964-10-07 1968-07-31 Gen Electric Improvements in aromatic polycarbonates
NL152889B (nl) 1967-03-10 1977-04-15 Gen Electric Werkwijze ter bereiding van een lineair polycarbonaatcopolymeer, alsmede orienteerbare textielvezel van dit copolymeer.
DE2036052A1 (en) 1970-07-21 1972-01-27 Milchwirtschafthche Forschungs und Untersuchungs Gesellschaft mbH, 2100 Hamburg Working up of additives in fat and protein - contng foodstuffs
DE2063050C3 (de) 1970-12-22 1983-12-15 Bayer Ag, 5090 Leverkusen Verseifungsbeständige Polycarbonate, Verfahren zu deren Herstellung und deren Verwendung
DE2063052A1 (de) 1970-12-22 1972-07-13 Bayer Verseifungsbeständige Polycarbonate
US3879348A (en) 1970-12-22 1975-04-22 Bayer Ag Saponification-resistant polycarbonates
DE2211956A1 (de) 1972-03-11 1973-10-25 Bayer Ag Verfahren zur herstellung verseifungsstabiler blockcopolycarbonate
DE3241713A1 (de) * 1982-11-11 1984-05-17 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter scheinwerfer fuer kraftfahrzeuge
JPS6486401A (en) 1987-09-29 1989-03-31 Koito Mfg Co Ltd Head light of vehicle
EP0351168B1 (fr) 1988-07-11 1997-11-05 General Electric Company Procédé de préparaton de polycarbonates
DE3832396A1 (de) 1988-08-12 1990-02-15 Bayer Ag Dihydroxydiphenylcycloalkane, ihre herstellung und ihre verwendung zur herstellung von hochmolekularen polycarbonaten
NO170326C (no) 1988-08-12 1992-10-07 Bayer Ag Dihydroksydifenylcykloalkaner
JPH02103801A (ja) * 1988-10-12 1990-04-16 Stanley Electric Co Ltd プロジエクタ型前照灯
CN2039378U (zh) * 1988-10-29 1989-06-14 重庆大学 激光彩霞投射装置
JP2754690B2 (ja) 1989-03-31 1998-05-20 市光工業株式会社 プロジェクタ型前照灯
DE3918406A1 (de) 1989-06-06 1990-12-13 Bayer Ag Verwendung von polycarbonatmischungen in der optik
JP3099417B2 (ja) * 1991-06-03 2000-10-16 オムロン株式会社 照明装置及び検査装置
JP2707391B2 (ja) 1992-09-01 1998-01-28 株式会社小糸製作所 プロジェクタ型前照灯
DE4238123C2 (de) 1992-11-12 2000-03-09 Bayer Ag Verfahren zur Herstellung von thermoplastischen Polycarbonaten
US5717057A (en) 1994-12-28 1998-02-10 General Electric Company Method of manufacturing polycarbonate
JPH10302506A (ja) * 1997-04-22 1998-11-13 Ichikoh Ind Ltd 車両用灯具
DE19933132A1 (de) 1999-07-19 2001-01-25 Bayer Ag Verfahren zur Herstellung von modifizierten Polycarbonaten
US20040158300A1 (en) * 2001-06-26 2004-08-12 Allan Gardiner Multiple wavelength illuminator having multiple clocked sources
US7055967B2 (en) * 2002-05-17 2006-06-06 Bierhuizen Serge J A Illumination systems employing corrective optics for use in reduced étendue color video projection systems
DE10300598A1 (de) 2003-01-10 2004-07-22 Bayer Ag Verfahren zur Herstellung von Polycarbonaten
JP2005044574A (ja) * 2003-07-25 2005-02-17 Stanley Electric Co Ltd 車両用灯具
DE10355747B4 (de) 2003-08-28 2014-10-09 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer zur Erzeugung unterschiedlicher Leuchtfunktionen
FR2866413B1 (fr) 2004-02-13 2006-06-30 Valeo Vision Projecteur elliptique equipe d'un ecran d'occultation en matiere transparente.
CA2562438A1 (fr) * 2004-04-08 2005-10-27 Federal-Mogul Corporation Phare projecteur avec correction de l'aberration chromatique
FR2868828B1 (fr) * 2004-04-09 2007-03-16 Valeo Vision Sa Projecteur lumineux pour vehicule automobile avec faisceau a coupure, et ensemble de cache pour un tel projecteur
TWI255962B (en) * 2004-08-20 2006-06-01 Coretronic Corp Dimensional image projector
US7706072B2 (en) * 2004-12-27 2010-04-27 Nikon Corporation Optical integrator, illumination optical device, photolithograph, photolithography, and method for fabricating device
US20090247406A1 (en) * 2005-10-12 2009-10-01 David De Corte Encapsulated Luminescent Pigments
CN201562100U (zh) * 2009-12-12 2010-08-25 浙江海盛科技股份有限公司 一种lcos数字电视机照明装置
US9400420B2 (en) * 2013-01-08 2016-07-26 Covestro Deutschland Ag Rear-projection film having a “day/night” effect
AT514161B1 (de) * 2013-04-09 2016-05-15 Zizala Lichtsysteme Gmbh Leuchteinheit mit Blende mit zumindest einem Lichtfenster
CN203258423U (zh) * 2013-04-11 2013-10-30 深圳市绎立锐光科技开发有限公司 Led单元模组、发光装置以及光源系统
JP6621739B2 (ja) 2013-10-08 2019-12-18 コベストロ、ドイチュラント、アクチエンゲゼルシャフトＣｏｖｅｓｔｒｏ Ｄｅｕｔｓｃｈｌａｎｄ Ａｇ 弱酸の塩を用いてポリシロキサン−ポリカーボネートブロック共縮合物を調製する方法
DE102013227194A1 (de) * 2013-12-27 2015-07-02 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer
CN203810244U (zh) * 2014-04-25 2014-09-03 江苏洪昌科技股份有限公司 双模组光斑叠加式汽车led前照灯的近光光学系统
DE102015201300A1 (de) * 2015-01-26 2016-07-28 Osram Gmbh Beleuchtungsvorrichtung mit Lichtquelle und Reflektor mit ellipsoidaler Reflexionsfläche

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US10619815B2 (en) 2020-04-14
WO2018069235A1 (fr) 2018-04-19
CN109996990A (zh) 2019-07-09
US20190234574A1 (en) 2019-08-01
CN109996990B (zh) 2021-12-28
EP3526514A1 (fr) 2019-08-21

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