EP1077471A1 - Farbige Leuchte mit pigmentbeschichteter Lampe - Google Patents
Farbige Leuchte mit pigmentbeschichteter Lampe Download PDFInfo
- Publication number
- EP1077471A1 EP1077471A1 EP00202907A EP00202907A EP1077471A1 EP 1077471 A1 EP1077471 A1 EP 1077471A1 EP 00202907 A EP00202907 A EP 00202907A EP 00202907 A EP00202907 A EP 00202907A EP 1077471 A1 EP1077471 A1 EP 1077471A1
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- EP
- European Patent Office
- Prior art keywords
- pigment
- lamp
- layer
- pigments
- red
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
Definitions
- the invention relates to a colored light, in particular a colored signal light for Automobile equipped with a lamp and a lamp cover in which the lamp a piston with a coating with a layer containing an organic pigment, Has.
- Colored lights are used in various places in automobiles, for example for brake lights, indicators and fog lamps.
- conventional colored lights is the bulb of the lamp made of clear glass and the lamp under a colored, mostly red or yellow lamp cover arranged.
- a more recent development is going for colored ones Shine colored lamps under a colorless or neutral colored cover to use. This allows different colored signal lamps as a lamp ensemble a uniform fluorescent cover.
- Lights with colored lamps under a colorless or neutral colored cover have the advantage that they have a flexible, visually appealing design for integrated Allow front and rear lights. They are also cheaper than lights with multi-colored ones Housing or multi-colored covers. These lights are also even safer to drive, because the difference between on and off lighting in daylight on luminaires with colored lamps and colorless or neutral colored Luminaire cover is more recognizable.
- the object is achieved by a colored lamp equipped with a lamp and a lamp cover in which the lamp has a bulb coating with a first pigment-containing layer, which is a pigment selected from the group of Perylene pigments, perinone pigments, isoindoline pigments and the thioindigo pigments contains, has.
- a first pigment-containing layer which is a pigment selected from the group of Perylene pigments, perinone pigments, isoindoline pigments and the thioindigo pigments contains, has.
- a lamp with such a lamp has a long lifespan. It is caused by UV light, Moisture and road salt are not attacked and are resistant to temperatures between 250 and 350 ° C. Colored lights with bulb coatings with these pigments alone or together with other pigments for color correction Color standards for automotive lights, such as those for Europe by the E.C.E. and for USA by the S.A.E. are defined.
- the first pigment-containing layer additionally contains an iron oxide pigment.
- An iron oxide pigment in the layer corrects the color value the organic pigment, for example in the bluish area, e.g. from yellow to amber or from orange-red to red. In the event that the lamp in the lamp exposed to temperatures above 250 ° C for a long time, this lamp still has emergency running properties.
- the first pigment-containing layer is an iron oxide pigment and contains a silicon-oxygen compound. Such a layer adheres very well the glass of the lamp bulb.
- a second pigment-containing layer is arranged on the first pigment-containing layer, which contains an iron oxide pigment. If the lamp is too strong and too frequent This embodiment is also exposed to changes in temperature and the top layer flakes off the emergency running properties of the lamp.
- the lamp has a transparent cover layer, which is a silicon-oxygen compound contains, has to the scratch resistance of the pigmented coating to increase
- the invention also relates to a lamp with a bulb with a coating a layer containing a pigment selected from the group of perylene pigments, perinone pigments, Contains isoindoline pigments and the thioindigo pigments.
- a colored lamp according to the invention is with a lamp and a lamp cover equipped in which the lamp has a bulb with a coating of a Layer containing a pigment selected from the group of perylene pigments, perinone pigments, Has isoindoline pigments and which contains thioindigo pigments.
- the colored lamp can still be used with other components, e.g. Attachment means the lamp in the lamp, means of protection against dust, damage and Moisture and the components necessary for energy supply, e.g. Versions, Lines, ballasts, starters, ignition devices and connecting terminals equipped his.
- a desired light distribution and glare limitation can be achieved by optical reflectors, clear or cloudy cover trays, grid made of metal or plastic, Scatter glasses and prism reflectors can be achieved.
- the invention comprises the lamp two or more colored lamps under a common Luminaire cover that is colorless or neutral colored.
- Perylene, perinone, isoindoline or thioindigo pigments are used for the first pigment-containing layer on the flask.
- the pigments used are polycyclic Pigments that have long been known for dyeing textile fibers.
- the pigments are subsequently based on their chemical constitution or the Color Index (C.I.), by the Society of Dyers and Colorists together with the American Association of Textile Chemists and Colorists is published.
- Perinones [CAS4424-06-0 (trans-Perinon), CAS 4216-02-8 (cis-Perinon)) are derivatives the 1,4,5,8-naphthaline tetracarboxylic acid. Cis and trans perinone are obtained as a cis / trans isomer mixture by heating 1,4,5,8-naphthalene tetracarboxylic acid in the form of the Monoanhydrides, e.g. in glacial acetic acid at 120 ° C, with o-phenylenediamine. If you look at the isomers separates, the trans-perinone is obtained with a pure orange-yellow color and the cis-perinon with red hue.
- the perylene pigments are derivatives of 3,4,9,10-perylenetetracarboxylic acid.
- the perylene pigments are made from 3,4,9,10-perylenetetracarboxylic anhydride by reaction with primary aliphatic amines or substituted anilines, optionally in the presence of a catalyst.
- PY 139 (CAS 36888-99-0) with the summation formula C 16 H 9 N 5 O 6 has an orange color and is very thermally stable.
- PY 185 (CAS 76199-85-4) has a yellow color and is also very good thermal resistance.
- the thioindigo pigments are especially those with chlorine and / or with methyl groups substituted derivatives suitable for the invention.
- Tetrachlorothioindigo PR 88 (CAS 14295-43-3) has a red-violet color, which is used to adjust other red pigments suitable is.
- the perylene, perinone, isoindoline or thioindigo pigments are preferred in finely divided, colloidal shape with a grain size of 2nm ⁇ d ⁇ 200 nm used to make transparent To get layers.
- the first pigment-containing Layer in addition to the perylene, perinone, isoindoline and thioindigo pigments contain an iron oxide pigment.
- Iron oxide pigments have a wide range of colors from yellow to orange to red, brown and black.
- the natural and synthetic iron oxide pigments used consist of well-defined compounds with a known crystal structure.
- ⁇ -Fe 2 O 3 hematite
- ⁇ -Fe 2 O maghemite
- ⁇ -FeOOH triasporic structure
- ⁇ -FeOOH boethite
- ⁇ -FeOOH boehmite structure changes its color from yellow to orange with increasing particle size.
- These iron oxides are iron (III) oxides.
- the red-violet to black Fe 3 O 4 (magnetite) with spinel structure is only suitable in exceptional cases.
- the transparent iron oxide pigments are preferably used in finely divided, colloidal form with a grain size of 2 ⁇ d ⁇ 15 nm in order to obtain transparent layers.
- Transparent yellow iron oxide CI PY 42: 77492 is ⁇ -FeOOH (goethite) with a diasporic structure. When heated, it changes into the preferred transparent brown-red ⁇ -Fe 2 O 3 (hematite) CI PR 101: 77491. Orange nuances develop with a shorter temperature treatment. They can also be obtained by mixing yellow and red pigments.
- the iron oxide pigments with a grain size of 2 nm ⁇ d ⁇ 200 nm are preferred.
- the first pigment-containing layer is a silicon-oxygen compound contains, e.g. amorphous or crystalline silicon dioxide, quartz, a silica gel or a Silica or a silicate, i.e. Salts or esters of silicas, especially tetraethyl orthosilicate (TEOS), a silicone or a siloxane.
- a silicon-oxygen compound contains, e.g. amorphous or crystalline silicon dioxide, quartz, a silica gel or a Silica or a silicate, i.e. Salts or esters of silicas, especially tetraethyl orthosilicate (TEOS), a silicone or a siloxane.
- TEOS tetraethyl orthosilicate
- the pigments and the silicon-oxygen compounds can be in a single color layer be applied.
- the colored piston coating also have a variable multilayer structure. It always includes a first colored layer, which is a pigment selected from the group of perylene pigments, perinone pigments, isoindoline pigments and which contains thioindigo pigments.
- a layer containing iron oxide can first be placed on the Lamp bulb be applied.
- the iron oxide-containing layer can either be the iron oxide contained as a finely divided pigment or as a precipitate from a sol-gel process.
- the iron oxide is applied as a pigment, it comes as a manufacturing process both a dry, e.g. electrostatic deposition, as well as wet application, e.g. as an aqueous suspension - by dipping or spraying.
- the multilayer structure for the coating of the lamp bulb is such that an iron oxide-containing layer is first applied to the inside or outside of the lamp bulb.
- the iron oxide can be applied either as a fine pigment or in a sol-gel process.
- a temperature-resistant, transparent protective layer which contains a silicon-oxygen compound, for example an SiO 2 or a quartz glass layer, is applied over the layer containing iron oxide.
- the pigment-containing layer is in turn applied to this.
- the multi-layer structure for the Coating the lamp bulb so that between the bulb and the first pigmented Layer a transparent layer that contains a silicon-oxygen compound contains is arranged.
- a temperature-resistant, transparent cover layer can be arranged over the pigment-containing layers.
- the cover layer contains a silicon-oxygen compound, for example amorphous or crystalline silicon dioxide, quartz, a silica gel or a silica or a silicate, ie salts or esters of silica, in particular tetraethylorthosilcat (TEOS).
- TEOS tetraethylorthosilcat
- this additional top layer can also be a temperature-resistant, transparent, colorless or dye-containing lacquer or a transparent ceramic layer, for example made of Al 2 O 3 or enamel. If the coatings are applied to the inside of the flask, the top layer prevents chemical changes in the pigments. If the coating is applied on the outside, the cover layer forms a scratch-resistant surface, which facilitates further processing of the bulb in lamp production.
- a cover layer with a suitable refractive index is preferably used, which has the Scattering of the pigment-containing layers is reduced.
- conventional Processes for coating complex shaped substrates can be used. These include the wet coating processes such as Spraying, dipping and brushing on. Dry coating processes, e.g. electrostatically assisted dusting are suitable for applying the pigment-containing coating to the lamp bulb.
- the pigments For wet coating processes, the pigments must be dispersed in water, an organic solvent or a binder preparation, optionally together with a dispersant, a surfactant and an antifoam.
- Suitable for binder preparations for a lamp according to the invention are organic or inorganic binders which can withstand an operating temperature of 250 ° C to 350 ° C without decomposition, embrittlement or discoloration.
- a layer thickness of 0.5 to 2.0 ⁇ m can be sufficient.
- Binder-containing layers generally have a layer thickness of 1 to 50 ⁇ m.
- the pigment coated lamps were subjected to an accelerated thermal stress test in which the lamps were kept at 300 ° C permanently. The color location changed only minimally within a period of 150 hours within the range specified by the ECE and the SAE for the color specification. Even with regular lamp operation over a period of 500 h, the color point remained within the ECE color specification.
- a very suitable iron oxide pigment is hematite.
- a coating is obtained in particular together with a mixture. which has a very good color point saturation in the red area and good light transmission.
- a surfactant for example a polyether-modified polysiloxane, can also be added to the dispersion.
- the cleaned and heated lamp bulbs are immersed in this dispersion and then baked at 250 ° C.
- 180 g of tetraethyl orthosilicate are mixed with 2077 g of ethanol, 146 g in hydrochloric acid and 27 ml of an anionic surfactant.
- the pre-coated lamp bulbs are dipped into this mixture and briefly heated at 300 ° C in order to convert tetraethyl orthosilicate into a silicon dioxide layer.
- a very suitable iron oxide pigment is hematite.
- an organic red pigment which is applied as the first layer in a temperature-resistant silicone resin, a coating is obtained which has very good color point saturation in the red area and good light transmission.
- a dispersion of 15% by weight of transparent iron oxide pigment PR 101, 3% by weight of a 25% solution of sodium in a polycarboxylic acid as a dispersing agent, 0.075% by weight of potyethylene propylene oxide as an anti-foaming agent is first wet with water in a stirred mill milled until the agglomerated pigment is dispersed. The dispersion is filtered to remove contaminants and hard agglomerates.
- a surfactant for example a polyether-modified polysiloxane
- the dispersion is diluted to a pigment concentration of 8.7% by weight.
- the cleaned and heated lamp bulbs are immersed in this dispersion, dried and then baked at 450 ° C.
- a transparent hematite layer approximately 0.5 ⁇ m thick is obtained.
- Another pigment dispersion is obtained by grinding the organic red pigment Dimethylperylimide PR 179 in a ball mill. 6% by weight of pigment in one Solvent mixture of xylene and cyclohexanone (ratio 5: 1) with the addition of a Dispersing agent ground until the pigment agglomerates are dispersed.
- a dispersant a pigment-affine block copolymer in a concentration of 18% by weight based on the amount of pigment used.
- the dispersion is filtered and with a Siliconhar solution mixed.
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the silicone resin solution has a polymer content of 50% by weight in a solvent mixture like this has already been used to grind the pigment.
- the ready-to-use mixture contains 32% by weight silicone and 12% by weight dimethylperylimide pigment PR 179.
- the already Lamp droppings covered with a hematite layer are sprayed with the pigment containing dimethylperylimide Silicone resin solution covered.
- the solvent is evaporated and crosslinked the silicone resin at 250 ° C.
- a red, 8 to 10 ⁇ m thick silicone resin layer is obtained as the outer cover layer of the lamp.
- the two-layer hematite coating and dimethylperylimide PR 179 results in a transparent red coating on the lamp, which complies with the ECE and SAE standards for red signal lamps.
- a very suitable iron oxide pigment is hematite.
- an organic yellow pigment which is applied as the first layer in a temperature-resistant silicone resin, a coating is obtained which has very good color point saturation in the amber area and good light transmission.
- the hematite layer to be applied first to the lamp bulb is obtained by grinding the iron oxide pigment PR101 in water as described in Example 2.
- the ground hematite dispersion is diluted to 5.5% by weight of pigment.
- the lamp bulb is coated by dipping.
- the dried and baked hematite layer at 450 ° C has a thickness of 0.3 ⁇ m.
- the layer is transparent and colored red-brown. The color point does not yet meet the ECE standard for amber-colored signal lamps.
- the isoindoline pigment PY 139 is ground in a solvent mixture with the addition of a pigment-affine block copolymer as a dispersant.
- the grinding is carried out according to the method given in Example 2 for the dimethylperylimide pigment.
- the yellow pigment dispersion and the silicone resin solution described in working example 2 are mixed in a ratio. that the concentration of isoindoline yellow pigment is 1.6% by weight and that of silicone is 35% by weight.
- the lamp bulb which is already covered with a hematite layer, is covered by spraying with the silicone resin solution containing isoindoline pigment.
- the solvent is evaporated and the silicone mixture is crosslinked at 250 ° C.
- An approximately 10-15 ⁇ m thick transparent yellow silicone resin coating is obtained on the hematite-coated lamp, which shifts the color point of the lamp into the ECE standard range for amber-colored signal lamps.
- a very suitable mixture of two organic pigments is the use of an organic red pigment (PR 149, bis-dimethylphenylperylimide) and an organic yellow pigment (PY139, isoindoline yellow pigment) in a silicone resin.
- PR 149 bis-dimethylphenylperylimide
- PY139 isoindoline yellow pigment
- a coating is obtained which has very good color point saturation in the amber region and good light transmission.
- the yellow isoindoline pigment PY 139 is ground in a solvent mixture with the addition of a pigment-affine block copolymer as a dispersant. The grinding is carried out according to the method given in Example 2 for the dimethylperylimide pigment.
- the yellow pigment dispersion and a 50% by weight silicone resin solution which is a mixture of 80 parts of reactive methylphenyl silicone and 20 parts of reactive polyester-modified methylphenyl silicone, are mixed in a ratio such that the concentration of isoindoline yellow pigment 2.4 % By weight and 35% by weight of silicone.
- the red bis-dimethylphenylperylimide pigment PR149 is ground in a solvent mixture with the addition of a pigment-affine block copolymer as a dispersant. The grinding is carried out according to the method given in Example 2 for the dimethylperylimide pigment.
- the red pigment dispersion and a 50% by weight silicone resin solution which is a mixture of 80 parts of reactive methyl-phenyl silicone and 20 parts of reactive polyester-modified methyl-phenyl silicone, are mixed in a ratio such that the concentration of red bis-dimethylphenylperylimide Pigment is 0.8% by weight and 35% by weight of silicone.
- the two pigment dispersions are mixed in equal proportions and applied to the lamp bulb by spraying.
- the solvent is evaporated and the silicone resin crosslinked at 250 ° C. A transparent, amber-colored silicone resin layer with a thickness of 10 to 15 ⁇ m is obtained, which corresponds to the ECE standard for signal lamps.
- a coating is obtained which has very good color point saturation in the red color range and good light transmission when the organic red pigment bis-dimethylphenylperylimide pigment PR149 is used in a silicone resin.
- the red bis-dimethylphenylperylimide pigment PR149 is ground in a solvent mixture with the addition of a pigment-affine block copolymer as a dispersant. The grinding is carried out according to the method given in Example 2 for the dimethylperylimide pigment.
- the red pigment dispersion and a 50% by weight silicone resin solution are mixed in a ratio such that the concentration of red bisdimethylphenylperylimide pigment is 2.9% by weight and that of silicone 33% by weight.
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the lamp bulb is sprayed with the red, pigment-containing silicone resin solution.
- the solvent is evaporated and the silicone resin crosslinked at 250 ° C.
- An approximately 15 ⁇ m thick transparent red silicone resin coating is obtained which has a color point which corresponds to the ECE and SAE standards for red signal lamps.
- a particularly hard and scratch-resistant coating is obtained which has a very good color saturation in the red color range and good light transmission if a layer of the organic red pigment bis-dimethylphenylperylimide PR149 is covered with a silicon dioxide sol-gel layer.
- a dispersion of 10% by weight bis-dimethylphenylperylimide PR14), 10% by weight of a 40% aqueous solution of a pigment-affine block copolymer as a dispersant, 0.075% by weight polyethylene propylene oxide as an antifoam with water in a ball mill is first used milled until the agglomerated pigment is dispersed. The dispersion is filtered to remove contaminants and hard agglomerates.
- a surfactant for example a polyether-modified polysiloxane
- a surfactant can be added to improve the wetting of the lamp bulb.
- the cleaned and heated lamp bulbs are immersed in this dispersion, dried and then baked at 250 ° C.
- a transparent pigment layer approximately 1.5 ⁇ m thick is obtained.
- 180 g of tetraethyl orthosilicate are mixed with 2077 g of ethanol, 146 g in hydrochloric acid and 27 ml of an anionic surfactant.
- the pre-coated lamp bulbs are dipped into this mixture and briefly heated at 300 ° C in order to convert tetraethyl orthosilicate into a silicon dioxide layer.
- a scratch-resistant, transparent red coating is obtained which has a color point which corresponds to the ECE and SAE standards for red signal lamps.
- a coating is obtained which has very good color point saturation in the red area and good light transmission if a mixture of the very suitable iron oxide pigment hematite with the organic red pigment dimethylperylimide PR179 is used.
- a pigment dispersion of the organic red pigment dimethylperylimide PR 179 is obtained by grinding in a ball mill. For this purpose, 6% by weight of pigment is ground in a solvent mixture of xylene and cyclohexanone (ratio 5: 1) with the addition of a dispersant until the pigment agglomerates are dispersed.
- a pigment-affine block copolymer in a concentration of 18% by weight, based on the amount of pigment, is used as the dispersant.
- a further pigment dispersion is obtained by grinding iron oxide pigment PR 101.
- the solvent is a mixture of xylene and cyclohexanone (ratio 5: 1).
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the pigment dispersions are filtered to remove contaminants and hard agglomerates and mixed with a silicone resin solution.
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the mixture suitable for spray coating contains 42% by weight of silicone, 2.2% by weight of dimethylperylimide pigment and 2.8% by weight of iron oxide pigment PR 101.
- the lamp bulb is sprayed with the red, pigment-containing silicone resin solution.
- the solvent is evaporated and the silicone resin crosslinked at 250 ° C.
- An approximately 15 to 20 ⁇ m thick transparent red silicone resin coating is obtained which has a color point which corresponds to the ECE and SAE standards for red signal lamps.
- a coating is obtained which has very good color point saturation in the red area and good light transmission if a mixture of the very suitable transparent iron oxide pigment Hematite PR101 with the isoindoline yellow pigment PY139 is used.
- 15% by weight of transparent iron oxide pigment PR 101 and 3.75% by weight of a pigment-affine block copolymer as a dispersant are ground in a 25% by weight solution of a phenyl-methyl-silicone resin in a ball mill.
- the solvent is a mixture of xylene and cyclohexanone (ratio 5: 1).
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- Another pigment dispersion is obtained by grinding a yellow isoindoline pigment, PY 139, in a ball mill. For this purpose, 6% by weight of pigment is ground in a solvent mixture of xylene and cyclohexanone (ratio 5: 1) with the addition of a dispersant until the pigment agglomerates have been dispersed. A pigment-affine block copolymer in a concentration of 18% by weight, based on the amount of pigment, is used as the dispersant. The dispersions are filtered and mixed with a silicone resin solution.
- the silicone resin is a reactive phenyl-methyl silicone, which is dissolved in a solvent mixture of xylene and cyclohexanone (ratio 5: 1).
- the mixture suitable for spray coating contains 35% by weight of silicone, 2.8% by weight of iron oxide pigment PR 101 and 1.6% by weight of isoindoline yellow pigment PY 139.
- the lamp bulb is spray-coated with the pigment-containing silicone resin solution.
- the solvent is evaporated and the silicone resin crosslinked at 250 ° C.
- a transparent, amber-colored silicone resin layer approximately 15 ⁇ m thick is obtained, which corresponds to the ECE standard for signal lamps.
- a coating is obtained which has very good color saturation in the amber color range and good Lichuransmission when using the organic isoindoline yellow pigment PY185.
- the yellow isoindoline pigment PY185 is ground in a solvent mixture with the addition of a pigment-affine block copolymer as a dispersant. The grinding is carried out according to the method given in Example 2 for the dimethylperylimide pigment.
- the yellow pigment dispersion and a 50% by weight silicone resin solution are mixed in a ratio such that the concentration of yellow isoindoline pigment is 2.9% by weight and that of silicone 33% by weight.
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the lamp bulb is sprayed with the yellow, pigment-containing silicone resin solution covered.
- the solvent is evaporated and the silicone resin crosslinked at 250 ° C.
- An approximately 20 ⁇ m thick transparent yellow coating is obtained which has a color point which complies with the ECE and SAE standards for amber-colored signal lamps.
- a coating is obtained which has very good color point saturation in the red color range and good light transmission when using the red pigment dichlorodiketopyrrolo-pyrrole PR254.
- the red pigment dichloro-diketopyrrolo-pyrrole (PR254) is ground in a solvent mixture with the addition of a pigment-affine block copolymer as a dispersant. The grinding is carried out according to the method specified in Example 5.
- the red pigment dispersion and a 50% by weight silicone resin solution are mixed in a ratio such that the concentration of red dichloro-diketopyrrolo-pyrrole pigment is 2.9% by weight and that of silicone is 33% by weight.
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the lamp bulb is sprayed with the red, pigment-containing silicone resin solution.
- the solvent is evaporated and the silicone resin crosslinked at 250 ° C.
- An approximately 15 to 20 ⁇ m thick transparent red coating is obtained, which has a color point which corresponds to the ECE and SAE standards for red signal lamps.
- a coating is obtained which has very good color point saturation in the red area and good light transmission when a mixture of the very suitable iron oxide pigment Hematite PR101 with the organic red pigment tetrachlorothioindigo PR88 is used.
- a pigment dispersion of the organic red pigment tetrachlorothioindigo PR88 is obtained by grinding in a ball mill. For this purpose, 8.5% by weight of pigment is ground in a solvent mixture of xylene and cyclohexanone (ratio 5: 1) with the addition of a dispersant until the pigment agglomerates are dispersed.
- a pigment-affine block copolymer in a concentration of 15% by weight, based on the amount of pigment, is used as the dispersant.
- a further pigment dispersion is obtained by grinding iron oxide pigment PR 101. 15% by weight of transparent iron oxide pigment PR 101 and 3.75% by weight of a pigment-affine block copolymer are used as dispersing agents in a 25% by weight solution of a phenyl-methyl-silicone resin in one Ball mill ground.
- the solvent is a mixture of xylene and cyclohexanone (ratio 5: 1).
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the pigment dispersions are filtered to remove contaminants and hard agglomerates and mixed with a silicone resin solution.
- the silicone resin is a reactive phenyl-methyl silicone that is thermally cross-linked and then stable up to temperatures of 500 ° C.
- the mixture suitable for spray coating contains 37% by weight of silicone, 3.2% by weight of tetrachlorothioindigo PR88 and 2.8% by weight of iron oxide pigment PR 101.
- the lamp bulb is sprayed with the red, pig-containing silicone resin solution.
- the solvent is evaporated and the silicone resin crosslinked at 250 ° C.
- An approximately 15 ⁇ m thick transparent red coating is obtained which has a color point which corresponds to the ECE and SAE standards for red signal lamps.
Abstract
Sie wird durch UV-Licht, Feuchtigkeit und Streusalz nicht angegriffen und ist beständig gegen Temperaturen zwischen 250 und 350°C. Farbige Leuchten mit Kolbenbeschichtungen mit diesen Pigmenten allein oder zusammen mit weiteren Pigmenten zur Farbkorrektur erfüllen die Farbnormen für Automobilleuchten.
Description
Für bindemittelfreie, pigmenthaltige Schichten kann eine Schichtdicke von 0.5 bis 2.0 µm ausreichend sein. Bindemittelhaltige Schichten haben im allgemeinen eine Schichtdicke von 1 bis 50 µm.
Die pigmentbeschichteten Lampen wurden einem beschleunigten Temperaturbelastungstest ausgesetzt, bei dem die Lampen permanent auf 300 °C gehalten wurden. Der Farbort veränderte sich in einem Zeitraum von 150 h nur minimal innerhalb des durch die E.C.E und die S.A. E. festgelegten Bereichs für die Farbspezifikation. Auch bei einem regulären Lampenbetrieb über einen Zeitraum von 500 h blieb der Farbpunkt innerhalb der E.C.E. Farbspezifikation.
Zur Herstellung der Kolbenbeschichtung wird zunächst eine Dispersion aus 7.5 Gew.-% cis/trans-Perinon-Pigment VR 54 und 7.5 Gew.-% transparentem Eisenoxidpigment PR 101, 0.75 Gew.-% Natriumpolyacrylat als Dispergiermittel, 0.075 Gew.-% Polyethylen-propylenoxid als Antischaurmmittel mit Wasser in einer Rührwerksmühle naß gemahlen, solange bis das agglomerierte Pigment dispergiert sind. Der Dispersion kann weiterhin ein Tensid z.B. ein polyether-modifiziertes Polysiloxan zugesetzt werden. Die gereinigten und ausgeheizten Lampenkolben werden in diese Dispersion getaucht und anschließend bei 250°C eingebrannt.
180 g Tetraethylorthosilikat werden mit 2077 g Ethanol, 146 g in Salzsäure und 27 ml eines anionischen Tensid gemischt. In diese Mischung werden die vorbeschichteten Lampenkolben getaucht und kurzzeitig bei 300°C ausgeheizt, um Tetraethylorthosilikat in eine Siliciumdioxidschicht umzuwandeln.
Zur Herstellung der Lampenbeschichtung wird zunächst eine Dispersion aus 15 Gew.-% transparentem Eisenoxidpigment PR 101, 3 Gew.-% einer 25 %igen Lösung eines Natriumsatzes einer Polycarboxylsäure als Dispergiermittel, 0.075 Gew.-% Potyethylenpropylenoxid als Antischaummittel mit Wasser in einer Rührwerksmühle naß gemahlen, solange bis das agglomerierte Pigment dispergiert ist. Die Dispersion wird filtriert, um Verunreinigungen und harte Agglomerate zu entfernen. Zur besseren Benetzung des Lampenkolbens wird ein Tensid z.B. ein polyether-modifiziertes Polysiloxan zugesetzt. Die Dispersion wird auf eine Pigmentkonzentrarion von 8.7 Gew.% verdünnt. Die gereinigten und ausgeheizten Lampenkolben werden in diese Dispersion getaucht, getrocknet und anschließend bei 450°C eingebrannt. Man erhält eine transparente Hämatitschicht von ca. 0.5 µm Dicke.
Die auf den Lampenkolben zuerst aufzutragende Hamatitschicht erhält man durch Mahlen des Eisenoxidpigmentes PR101 in Wasser wie es in Ausführungsbeispiel 2 beschrieben ist. Die gemahlenen Hämatitdispersion wird auf 5.5 Gew.% Pigmentanteil verdünnt. Der Lampenkolben wird durch Tauchen beschichret. Die getrocknete und bei 450°C eingebrannte Hämatirschicht hat eine Dicke von 0.3 µm. Die Schicht ist transparent und rotbraun gefärbt. Der Farbpunkt genügt noch nicht der ECE Norm für amberfarbene Signallampen. Deshalb ist eine weitere Beschichtung mit einem geeigneten Gelbpigment notwendig, um eine Farbpunktkorrektur entsprechend der ECE Norm vorzunehmen.
Das Isoindolinpigment PY 139, wird in einem Lösungsmittelgemisch unter Zusatz eines pigmentaffinen Blockcopolymers als Dispergiermittel gemahlen. Die Mahlung erfolgt nach der in Ausführungsbeispiel 2 angegebenen Methode für das Dimethylperylimid-Pigment. Die gelbe Pigmentdispersion und die in Ausführungsbeispiel 2 beschriebene Siliconharzlösung werden in einem Verhältnis gemischt. dass die Konzentration an Isoindolin-Gelbpigment 1.6 Gew.% und an Silicon 35 Gew.% beträgt. Der bereits mit einer Hämatitschicht bedeckte Lampenkolben wird durch Sprühen mit der Isoindolin -pigmenthaltigen Siliconharzlösung bedeckt. Das Lösungsmittel wird verdampft und das Siliconhatz bei 250°C vernetzt. Man erhält eine etwa 10 - 15 µm dicke transparente gelbe Siliconharzbeschichtung auf der Hämatit beschichteten Lampe, die den Farbpunkt der Lampe in den ECE Normbereich für amberfarbene Signallampen verschiebt.
Das gelbe Isoindolinpigment PY 139, wird in einem Lösungsmittelgemisch unter Zusatz eines pigmentaffinen Blockcopolymers als Dispergiermittel gemahlen. Die Mahlung erfolgt nach der in Ausführungsbeispiel 2 angegebenen Methode für das Dimethylperylimid-Pigment. Die gelbe Pigmentdispersion und eine 50 Gew.%ige Siliconharzlösung, die eine Mischung aus 80 Teilen reaktivem Methyl-Phenyl-Silicon und 20 Teilen reaktivem polyestermodifiziertem Methyl-Phenyl-Silicon ist, werden in einem Verhältnis gemischt, dass die Konzentration an Isoindolin-Gelbpigment 2.4 Gew.% und an Silicon 35 Gew.% beträgt.
Das rote Bis-dimethylphenylperylimid-Pigment PR149 wird in einem Lösungsmittelgemisch unter Zusatz eines pigmentaffinen Blockcopolymers als Dispergiermittel gemahlen. Die Mahlung erfolgt nach der in Ausführungsbeispiel 2 angegebenen Methode für das Dimethylperylimid-Pigment. Die rote Pigmentdispersion und eine 50 Gew.%ige Siliconharzlösung, die eine Mischung aus 80 Teilen reaktivem Methyl-Phenyl-Silicon und 20 Teilen reaktivem polyestermodifiziertem Methyl-Phenyl-Silicon ist, werden in einem Verhältnis gemischt, dass die Konzentration an rotem Bis-dimethylphenylperylimid-Pigment 0.8 Gew.% und an Silicon 35 Gew.% beträgt.
Die beiden Pigmentdispersionen werden zu gleichen Anteilen gemischt und durch Sprühen auf den Lampenkolben aufgetragen. Das Lösungsmittel wird verdampft und das Siliconharz bei 250°C vernetzt. Man erhält eine transparente, amberfarbene Siliconharzschicht von 10 bis 15 µm Dicke, die der ECE Norm für Signallampen entspricht.
Das rote Bis-dimethylphenylperylimid-Pigment PR149 wird in einem Lösungsmittelgemisch unter Zusatz eines pigmentaffinen Blockcopolymers als Dispergiermittel gemahlen. Die Mahlung erfolgt nach der in Ausführungsbeispiel 2 angegebenen Methode für das Dimethylperylimid-Pigment. Die rote Pigmentdispersion und eine 50 Gew.%ige Siliconharzlösung werden in einem Verhältnis gemischt, dass die Konzentration an rotem Bisdimethylphenylperylimid-Pigment 2.9 Gew.% und an Silicon 33 Gew.% beträgt. Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon, das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist.
Der Lampenkolben wird durch Sprühen mit der roten, pigmenthaltigen Siliconharzlösung bedeckt. Das Lösungsmittel wird verdampft und das Siliconharz bei 250°C vernetzt. Man erhält eine etwa 15 µm dicke transparente rote Siliconharzbeschichtung, die einen Farbpunkt aufweist, der den ECE und SAE Normen für rote Signallampen entspricht.
Zur Herstellung der Lampenbeschichtung wird zunächst eine Dispersion aus 10 Gew.-% Bis-dimethylphenylperylimid PR14), 10 Gew.-% einer 40 %igen wässrigen Lösung eines pigmentaffinen Blockcopolymers als Dispergiermittel, 0.075 Gew.-% Polyethylenpropylenoxid als Antischaummittel mit Wasser in einer Kugelmühle gemahlen, solange bis das agglomerierte Pigment dispergiert ist. Die Dispersion wird filtriert, um Verunreinigungen und harte Agglomerate zu entfernen. Zur besseren Benetzung des Lampenkolbens kann ein Tensid z.B. ein polyether-modifiziertes Polysiloxan zugesetzt werden.
Die gereinigten und ausgeheizten Lampenkolben werden in diese Dispersion getaucht, getrocknet und anschließend bei 250°C eingebrannt. Man erhält eine transparente Pigmentschicht von etwa 1.5 µm Dicke.
180 g Tetraethylorthosilikat werden mit 2077 g Ethanol, 146 g in Salzsäure und 27 ml eines anionischen Tensid gemischt. In diese Mischung werden die vorbeschichteten Lampenkolben getaucht und kurzzeitig bei 300°C ausgeheizt, um Tetraethylorthosilikat in eine Siliciumdioxidschicht umzuwandeln. Man erhält eine kratzfeste, transparente rote Beschichtung, die einen Farbpunkt aufweist, der den ECE und SAE Normen für rote Signallampen entspricht.
Eine Pigmentdispersion des organischen Rotpigments Dimethylperylimid PR 179 erhält man durch Mahlen in einer Kugelmühle. Dazu wird 6 Gew.-% Pigment in einem Lösurtgsmittelgemisch aus Xylol und Cyclohexanon (Verhältnis 5:1) unter Zusatz eines Dispergiermittels gemahlen bis die Pigmentagglomerate dispergiert sind. Als Dispergiermittel wird ein pigmentaffines Blockcopolymer in einer Konzentration von 18 Gew.% bezogen auf die Pigmentmenge verwendet.
Eine weitere Pigmentdispersion erhält man durch Mahlen von Eisenoxidpigment PR 101. Es werden 15 Gew.-% transparentes Eisenoxidpigment PR 101 und 3.75 Gew.-% eines pigmentaffinen Bockcopolymers als Dispergiermittel in einer 25 Gew.-%igen Lösung eines Phenyl-Methyl-Siliconharzes in einer Kugelmühle gemahlen. Das Lösungsmittel ist ein Gemisch aus Xylol und Cyclohexanon (Verhältnis 5:1). Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon, das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist.
Die Pigmentdispersionen werden filtriert, um Verunreinigungen und harte Agglomerate zu entfernen und mit einer Siliconharzlösung gemischt. Das Silconharz ist ein reaktives Phenyl-Methyl-Silicon, das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist. Die zum Sprühbeschichten geeignete Mischung enthält 42 Gew.% Silicon, 2.2 Gew.% Dimethylperylimid-Pigment und 2.8 Gew.% Eisenoxidpigment PR 101.
Der Lampenkolben wird durch Sprühen mit der roten, pigmenthaltigen Siliconharzlösung bedeckt. Das Lösungsmittel wird verdampft und das Siliconharz bei 250°C vernetzt. Man erhält eine etwa 15 bis 20 µm dicke transparente rote Siliconharzbeschichtung, die einen Farbpunkt aufweist, der den ECE und SAE Normen für rote Signallampen entspricht.
Es werden 15 Gew.-% transparentes Eisenoxidpigment PR 101 und 3.75 Gew.-% eines pigmentaffinen Blockcopolymers als Dispergiermittel in einer 25 Gew.%igen Lösung eines Phenyl-Methyl-Siliconharzes in einer Kugelmühle gemahlen. Das Lösungsmittel ist ein Gemisch aus Xylol und Cyclohexanon (Verhältnis 5:1). Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon, das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist.
Eine weitere Pigmentdispersion erhält man durch Mahlen von einem gelben Isoindolinpigment, PY 139, in einer Kugelmühle. Dazu wird 6 Gew.-% Pigment in einem Lösungsmittelgemisch aus Xylol und Cyclohexanon (Verhältnis 5:1) unter Zusatz eines Dispergiermittels gemahlen bis die Pigmentagglomerate dispergiert sind. Als Dispergiermittel wird ein pigmentaffines Blockcopolymer in einer Konzentration von 18 Gew.% bezogen auf die Pigmentmenge verwendet.
Die Dispersionen werden filtriert und mit einer Siliconharzlösung gemischt. Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon, das in einem Lösungsmittelgemisch aus Xylol und Cyclohexanon (Verhältnis 5:1) gelöst ist. Die zum Sprühbeschichten geeignete Mischung enthält 35 Gew.% Silicon, 2.8 Gew.% Eisenoxidpigment PR 101 und 1.6 Gew.% Isoindolin-Gelbpigment PY 139.
Der Lampenkolben wird durch Sprühen mit der pigmenthaltrigen Siliconharzlösung bedeckt. Das Lösungsmittel wird verdampft und das Siliconharz bei 250°C vernetzt. Man erhält eine transparente, amberfarbene Siliconharzschicht von etwa 15 µm Dicke, die der ECE Norm für Signallampen entspricht.
Das gelbe Isoindolinpigments PY185 wird in einem Lösungsmittelgemisch unter Zusatz eines pigmentaffinen Blockcopolymers als Dispergiermittel gemahlen. Die Mahlung erfolgt nach der in Ausführungsbeispiel 2 angegebenen Methode für das Dimethylperylimid-Pigment. Die gelbe Pigmentdispersion und eine 50 Gew.%ige Siliconharzlösung werden in einem Verhältnis gemischt, dass die Konzentration an gelbem Isoindolinpigment 2.9 Gew.% und an Silicon 33 Gew.% beträgt. Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon, das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist.
Das rote Pigment Dichloro-diketopyrrolo-pyrrol (PR254) wird in einem Lösungsmittelgemisch unter Zusatz eines pigmentaffinen Blockcopolymers als Dispergiermittel gemahlen. Die Mahlung erfolgt nach der in Ausführungsbeispiel 5 angegebenen Methode. Die rote Pigmentdispersion und eine 50 Gew.%ige Siliconharzlösung werden in einem Verhältnis gemischt, dass die Konzentration an rotem Dichloro-diketopyrrolo-pyrrol- Pigment 2.9 Gew.% und an Silicon 33 Gew.% beträgt. Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon, das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist. Der Lampenkolben wird durch Sprühen mit der roten, pigmenthaltigen Siliconharzlösung bedeckt. Das Lösungsmittel wird verdampft und das Siliconharz bei 250°C vernetzt. Man erhält eine etwa 15 bis 20 µm dicke transparente rote Beschichtung, die einen Farbpunkt aufweist, der den ECE und SAE Normen für rote Signallampen entspricht.
Eine Pigmentdispersion des organischen Rotpigments Tetrachloro-thioindigo PR88 erhält man durch Mahlen in einer Kugelmühle. Dazu wird 8.5 Gew.-% Pigment in einem Lösungsmittelgemisch aus Xylol und Cyclohexanon (Verhältnis 5:1) unter Zusatz eines Dispergiermittels gemahlen bis die Pigmentagglomerate dispergiert sind. Als Dispergiermittel wird ein pigmentaffines Blockcopolymer in einer Konzentration von 15 Gew.% bezogen auf die Pigmentmenge verwendet.
Eine weitere Pigmentdispersion erhäit man durch Mahlen von Eisenoxidpigment PR 101. Es werden 15 Gew.-% transparentes Eisenoxidpigment PR 101 und 3.75 Gew.-% eines pigmentaffinen Bockcopolymers als Dispergiermttrel in einer 25 Gew.%igen Lösung eines Phenyl-Methyl-Siliconharzes in einer Kugelmühle gemahlen. Das Lösungsmittel ist ein Gemisch aus Xylol und Cyclohexanon (Verhältnis 5:1). Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon, das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist.
Die Pigmentdispersionen werden filtriert, um Verunreinigungen und harte Agglomerate zu entfernen und mit einer Siliconharzlösung gemischt. Das Siliconharz ist ein reaktives Phenyl-Methyl-Silicon das thermisch vernetzt wird und dann bis zu Temperaturen von 500°C stabil ist. Die zum Sprühbeschichten geeignete Mischung enthält 37 Gew.% Silicon, 3.2 Gew.% Tetrachloro-thioindigo PR88 und 2.8 Gew.% Eisenoxidpigment PR 101.
Der Lampenkolben wird durch Sprühen mit der roten, pigmenrhaltigen Siliconharzlösung bedeckt. Das Lösungsmittel wird verdampft und das Siliconharz bei 250°C vernetzt. Man erhält eine etwa 15 µm dicke transparente rote Beschichtung, die einen Farbpunkt aufweist, der den ECE und SAE Normen für rote Signallampen entspricht.
Claims (7)
- Farbige Leuchte, ausgestattet mit einer Lampe und einer Leuchtenabdeckung, in der die Lampe einen Kolben mit einer Beschichtung mit einer ersten pigmenthaltigen Schicht, die ein Pigment ausgewählt aus der Gruppe der Perylen-Pigmente, Perinon-Pigmente, Isoindolin-Pigmente und der Thioindigo-Pigmente enthält, hat.
- Farbige Leuchte gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die erste pigmenthaltige Schicht zusätzlich ein Eisenoxidpigment enthält. - Farbige Leuchte gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die erste pigmenthaltige Schicht ein Eisenoxidpigment und eine Silicium-Sauerstoff-Verbindung enthält. - Farbige Leuchte gemäß Anspruch 1,
dadurch gekennzeichnet,
daß zwischen dem Kolben und der ersten pigmenthaltigen Schicht eine zweite pigmenthaltige Schicht angeordnet ist, die ein Eisenoxidpigment enthält. - Farbige Leuchte gemäß Anspruch 1,
dadurch gekennzeichnet,
daß zwischen dem Kolben und der ersten pigmenthaltigen Schicht eine transparente Schicht, die eine Silicium-Sauerstoff-Verbindung enthält, angeordnet ist. - Farbige Leuchte gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die Lampe eine transparente Deckschicht, die eine Silicium-Sauerstoff-Verbindung enthält, hat. - Lampe mit einem Kolben mit einer pigmenthaltigen Beschichtung, die ein Pigment ausgewählt aus der Gruppe der Perylen-Pigmente, Perinon-Pigmente, Isoindolin-Pigmente und der Thioindigo-Pigmente enthält.
Applications Claiming Priority (2)
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DE19938700A DE19938700A1 (de) | 1999-08-14 | 1999-08-14 | Farbige Leuchte mit pigmentbeschichteter Lampe |
DE19938700 | 1999-08-14 |
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EP1077471A1 true EP1077471A1 (de) | 2001-02-21 |
Family
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EP00202907A Withdrawn EP1077471A1 (de) | 1999-08-14 | 2000-08-07 | Farbige Leuchte mit pigmentbeschichteter Lampe |
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US (1) | US6520664B1 (de) |
EP (1) | EP1077471A1 (de) |
JP (1) | JP2001101996A (de) |
KR (1) | KR20010021280A (de) |
CN (1) | CN1288250A (de) |
DE (1) | DE19938700A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1119020A2 (de) * | 2000-01-18 | 2001-07-25 | Philips Patentverwaltung GmbH | Warmton-Leuchtstofflampe |
EP1125998A2 (de) * | 2000-02-18 | 2001-08-22 | Ichikoh Industries Limited | Mittel zur Färbung und gefärbte Lampe |
WO2004044486A2 (en) * | 2002-11-14 | 2004-05-27 | Koninklijke Philips Electronics N.V. | Light-transmitting substrate provided with a light-absorbing coating |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003346516A (ja) * | 2002-05-30 | 2003-12-05 | Koito Mfg Co Ltd | 車両用灯具 |
US20050024874A1 (en) * | 2003-07-28 | 2005-02-03 | Yu-Peng Liu | Decorative bulbs |
US7345414B1 (en) * | 2006-10-04 | 2008-03-18 | General Electric Company | Lamp for night vision system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52135582A (en) * | 1976-05-06 | 1977-11-12 | Matsushita Electronics Corp | Red lamp |
JPS6067545A (ja) * | 1983-09-26 | 1985-04-17 | Dainichi Seika Kogyo Kk | 装飾材料の製造方法 |
JPS60116958A (ja) | 1983-11-30 | 1985-06-24 | Nissan Motor Co Ltd | 液面安定機構 |
US5143443A (en) * | 1990-08-31 | 1992-09-01 | Integrated Systems Engineering, Inc. | Light permeable, color adding, self-securing stressed covers for large display light-emitting devices, and methods |
WO1997012000A1 (en) * | 1995-09-29 | 1997-04-03 | Minnesota Mining And Manufacturing Company | Fluorescent dye blends |
JPH09124976A (ja) * | 1995-10-27 | 1997-05-13 | Koito Mfg Co Ltd | ターンシグナルランプ用着色コーチング剤およびターンシグナルランプ |
JPH09320545A (ja) * | 1996-05-30 | 1997-12-12 | Toshiba Lighting & Technol Corp | カラーランプおよび表示装置 |
WO1999016847A1 (en) * | 1997-09-29 | 1999-04-08 | Minnesota Mining And Manufacturing Company | Fluorescent dye blends |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4215390A (en) * | 1978-12-26 | 1980-07-29 | J. W. Speaker Corporation | Warning light |
DE2908890A1 (de) * | 1979-03-07 | 1980-09-18 | Patra Patent Treuhand | Quecksilberdampf-niederdruckentladungslampe |
TW311694U (en) * | 1991-06-19 | 1997-07-21 | Toshiba Co Ltd Kk | Anti-reflection film |
-
1999
- 1999-08-14 DE DE19938700A patent/DE19938700A1/de not_active Withdrawn
-
2000
- 2000-08-07 EP EP00202907A patent/EP1077471A1/de not_active Withdrawn
- 2000-08-11 CN CN00130600A patent/CN1288250A/zh active Pending
- 2000-08-11 KR KR1020000046660A patent/KR20010021280A/ko not_active Application Discontinuation
- 2000-08-11 JP JP2000243630A patent/JP2001101996A/ja active Pending
- 2000-08-14 US US09/638,552 patent/US6520664B1/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52135582A (en) * | 1976-05-06 | 1977-11-12 | Matsushita Electronics Corp | Red lamp |
JPS6067545A (ja) * | 1983-09-26 | 1985-04-17 | Dainichi Seika Kogyo Kk | 装飾材料の製造方法 |
JPS60116958A (ja) | 1983-11-30 | 1985-06-24 | Nissan Motor Co Ltd | 液面安定機構 |
US5143443A (en) * | 1990-08-31 | 1992-09-01 | Integrated Systems Engineering, Inc. | Light permeable, color adding, self-securing stressed covers for large display light-emitting devices, and methods |
WO1997012000A1 (en) * | 1995-09-29 | 1997-04-03 | Minnesota Mining And Manufacturing Company | Fluorescent dye blends |
JPH09124976A (ja) * | 1995-10-27 | 1997-05-13 | Koito Mfg Co Ltd | ターンシグナルランプ用着色コーチング剤およびターンシグナルランプ |
JPH09320545A (ja) * | 1996-05-30 | 1997-12-12 | Toshiba Lighting & Technol Corp | カラーランプおよび表示装置 |
WO1999016847A1 (en) * | 1997-09-29 | 1999-04-08 | Minnesota Mining And Manufacturing Company | Fluorescent dye blends |
Non-Patent Citations (4)
Title |
---|
DATABASE WPI Section Ch Week 197751, Derwent World Patents Index; Class L03, AN 1977-91329Y, XP002155005 * |
DATABASE WPI Section Ch Week 198522, Derwent World Patents Index; Class E24, AN 1985-130998, XP002155004 * |
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09 30 September 1997 (1997-09-30) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1119020A2 (de) * | 2000-01-18 | 2001-07-25 | Philips Patentverwaltung GmbH | Warmton-Leuchtstofflampe |
EP1119020A3 (de) * | 2000-01-18 | 2003-02-12 | Philips Corporate Intellectual Property GmbH | Warmton-Leuchtstofflampe |
EP1125998A2 (de) * | 2000-02-18 | 2001-08-22 | Ichikoh Industries Limited | Mittel zur Färbung und gefärbte Lampe |
EP1125998A3 (de) * | 2000-02-18 | 2002-07-03 | Ichikoh Industries Limited | Mittel zur Färbung und gefärbte Lampe |
WO2004044486A2 (en) * | 2002-11-14 | 2004-05-27 | Koninklijke Philips Electronics N.V. | Light-transmitting substrate provided with a light-absorbing coating |
WO2004044486A3 (en) * | 2002-11-14 | 2004-07-29 | Koninkl Philips Electronics Nv | Light-transmitting substrate provided with a light-absorbing coating |
Also Published As
Publication number | Publication date |
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JP2001101996A (ja) | 2001-04-13 |
DE19938700A1 (de) | 2001-05-23 |
US6520664B1 (en) | 2003-02-18 |
CN1288250A (zh) | 2001-03-21 |
KR20010021280A (ko) | 2001-03-15 |
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