EP3546823A1 - Vehicle lighting fixture - Google Patents

Vehicle lighting fixture Download PDF

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Publication number
EP3546823A1
EP3546823A1 EP19165091.0A EP19165091A EP3546823A1 EP 3546823 A1 EP3546823 A1 EP 3546823A1 EP 19165091 A EP19165091 A EP 19165091A EP 3546823 A1 EP3546823 A1 EP 3546823A1
Authority
EP
European Patent Office
Prior art keywords
region
extension
outer lens
housing
lighting fixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19165091.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Akira Umemoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP3546823A1 publication Critical patent/EP3546823A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/30—Ventilation or drainage of lighting devices
    • F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps

Definitions

  • the present disclosure relates to a vehicle lighting fixture, and more particularly, to a structure of an extension installed around a lamp.
  • Motor vehicles are equipped with vehicle lighting fixtures, such as headlights and taillights.
  • vehicle lighting fixtures lamps are housed in housings which are recessed inward into holes defined in bodies of the vehicles. Openings of the housings facing toward the outside of the bodies are covered with outer lenses, and light emitted from the lamps is projected from the motor vehicles through the outer lenses.
  • the vehicle lighting fixtures include spaces enclosed by the outer lenses and the housings, in which moisture in air may be condensed depending on the structure of the spaces or on atmospheric conditions, resulting in fogging of the outer lenses.
  • Patent Document 1 JP 2004-119198 A
  • Patent Document 2 JP 2012-003958 A
  • Patent Document 1 JP 2004-119198 A
  • Patent Document 1 JP 2004-119198 A describes a conventional problem in that because the temperature of a region equipped with a lamp for high beam lighting that is less frequently used tends to become lower than that of a region equipped with a lamp for low beam lighting that is more frequently used, air becomes stagnant in the region equipped with the lamp for high beam lighting, which causes the outer lens to easily get fogged.
  • Patent Document 1 JP 2004- 119198 A suggests a structure in which a baffle plate is installed between the lamp for low beam lighting and the lamp for high beam lighting to eliminate stagnation of air.
  • a region where a driving beam lamp (also referred to as a high beam lamp) is installed is separated by a partition plate from a region where a pass-by beam lamp (also referred to as a low beam lamp) is installed.
  • a pass-by beam lamp also referred to as a low beam lamp
  • a design component referred to as an extension is installed around a lamp in a vehicle lighting fixture.
  • the extension is designed to close an opening of a housing in the vicinity of the lamp, and is covered together with the lamp by an outer lens.
  • an outer lens There has been a problem to be solved in connection with the design of the extension as described below. That is, when the extension is exposed to sunlight, a space having a temperature lower than that of an adjacent space is created depending on the shape, conditions of a coating, or other features of the extension, between the extension and the outer lens. When such a space having the lower temperature is present, moisture in air that has flowed from the adjacent space into the space having the lower temperature is often condensed, which easily causes fogging of the outer lens.
  • the present disclosure is characterized by including an extension installed around a lamp, an outer lens which covers the extension on an outer side thereof, a housing which covers the extension on an inner side thereof, and an air vent formed in the extension, the air vent allowing a space between the outer lens and the extension to communicate with a space between the housing and the extension.
  • the extension includes a first region and a second region adjacent to the first region, the first region and the second region being located at different distances from the outer lens, in which a distance from the outer lens to the second region is greater than a distance from the outer lens to the first region, and the air vent being formed in the second region.
  • the second region is depressed inward relative to the first region.
  • the extension includes a first region and a second region adjacent to the first region, the first region and the second region being warmed at different rates by sunlight, wherein the second region is less apt to be warmed by sunlight, and the air vent is formed in the second region.
  • the extension has a reflective region in which a reflection treatment is applied to a surface on an outer lens side of the extension, and a non-reflective region adjacent to the reflective region, the non-reflective region having no reflection treatment is applied to the surface on the outer lens side of the extension, and the air vent being formed in the reflective region.
  • the extension has a light shielding structure configured to block light which is emitted from the lamp into the housing and propagates toward the air vent.
  • an antifog coating is applied to an inner surface of the outer lens.
  • the vehicle lighting fixture further includes a ventilation hole formed in the housing, the ventilation hole allowing a space between the housing and the extension to communicate with a space outside the housing.
  • an inner surface of the housing includes a light diffusing surface which is configured to irregularly reflect light incident thereon.
  • a vehicle lighting fixture according to an embodiment of this disclosure will be described with reference to the drawings.
  • terms representing an outward direction and an inward direction indicate a direction from the body of a motor vehicle toward the outside and a direction from the outside toward the inside of the body of the motor vehicle, respectively.
  • terms of above and below, right and left, and front and rear are used for indicating positions and orientations viewed from the vehicle lighting fixture along a light radiating direction.
  • positions above and below, right and left of, and front and rear of the vehicle lighting fixture coincide with positions above and below, right and left of, and front and rear of an occupant of the motor vehicle.
  • FIG. 1 shows the vehicle lighting fixture according to an embodiment of this disclosure together with a motor vehicle on which the vehicle lighting fixture is mounted.
  • the vehicle lighting fixture includes a lamp for nighttime driving 14 (hereinafter referred to as a nighttime lamp 14), a housing 12, an extension 16, and an outer lens 18.
  • the nighttime lamp 14 is housed with its light radiating direction being directed forward in the housing 12 which is inwardly depressed into a hole defined in a body 20.
  • the extension 16 is installed around the nighttime lamp 14. An opening of the housing 12 facing the outside of the body 20 is covered with the extension 16 which is covered on its outer side with the outer lens 18. Light emitted from the nighttime lamp 14 is radiated through the outer lens 18 to the outside of the motor vehicle.
  • FIG. 2 shows a perspective view of the vehicle lighting fixture from which the outer lens 18 and the extension 16 are removed.
  • the housing 12 is formed in the shape of a boat which is deformed so as to conform to a curved contour of a body front portion.
  • the housing 12 has, on its inner surface, an uneven shape which is projected and depressed in accordance with layout of components installed in the vehicle lighting fixture.
  • An inwardly swollen region is formed in a forward left region of the housing 12, in which a first auxiliary lamp hole 22 and a second auxiliary lamp hole 24 are formed so as to be situated side by side along a vertical direction in a front surface of the inwardly swollen region.
  • Auxiliary lamps such as a clearance lamp and a blinker lamp, are fixed in the first auxiliary lamp hole 22 and the second auxiliary lamp hole 24.
  • the housing 12 has, in its rear region, a main lamp hole 26.
  • the nighttime lamp is fixed in the main lamp hole 26.
  • a lamp which can function as both a low beam lamp and a high beam lamp may be used.
  • a bottom wall of the housing on a rear side of the main lamp hole 26 12 is designed to constitute a part of a cylindrical shape extending rearward. The design is intended to secure a space for accommodating components in a region corresponding to the rear side of the main lamp hole 26 on the outside of the housing 12.
  • Ventilation holes 32 are defined in both a further front surface of the swollen region on the forward left region and a wall surface on a rear side, for allowing an internal space of the housing 12 to communicate with a space outside the housing 12. With the ventilation holes 32 it is possible to prevent air contained in the vehicle lighting fixture from expanding at high temperatures, to thereby exert mechanical stress on the components in the vehicle lighting fixture. However, in some cases, such as a case where clearances are defined between component attachment holes and components, ventilation is provided between the internal space of the housing and the space outside the housing 12 by the clearances or the like. In these cases, the ventilation holes 32 may not necessarily be provided.
  • FIG. 3 shows a perspective view of the extension 16.
  • the nighttime lamp 14 is also illustrated together with the extension 16.
  • the extension 16 is formed in the shape of a boat for closing the opening of the housing 12 shown in FIG. 2 , and includes a hole into which the nighttime lamp 14 is inserted and projections and depressions which are provided for ornamental purposes.
  • a cylindrical structure 36 extending along a front and rear direction is formed around the frontal lamp hole 34, and a frontal auxiliary lamp hole 38 which allows light from the auxiliary lamp to pass through is formed in a region on the left of the cylindrical structure 36.
  • An edge 50 projecting in the shape of a bank is formed above and on the left of a region in which the frontal lamp hole 34, the cylindrical structure 36, and the frontal auxiliary lamp hole 38 are formed. The edge 50 extends from a rear portion to a front portion on an upper side of the extension 16.
  • the edge 50 is, at its forward end, turned back on itself so as to surround the frontal auxiliary lamp hole 38, and further extends to a position below the cylindrical structure 36.
  • a region projected in the shape of a cliff is formed from the position below the cylindrical structure 36 to the upper side of the rear portion.
  • FIG. 4 shows a cross section view taken along line AA indicated in FIG. 3 (hereinafter referred to as an AA cross section).
  • FIG. 5 shows a cross section view taken along line BB indicated in FIG. 4 (hereinafter referred to as a BB cross section), and
  • FIG. 6 shows a cross section view taken along line CC indicated in FIG. 4 (hereinafter referred to as a CC cross section).
  • the outer lens 18 which covers a front region (an outer region) of the extension 16 and the housing 12 which covers a rear region (an inner region) of the extension 16 are also illustrated together with the extension 16.
  • the housing 12 extends from a rear portion to a front portion shifted to the left while being bent at positions corresponding to the components to be installed.
  • the ventilation hole 32 is provided in a rear part of the housing 12.
  • the nighttime lamp 14 is fixed to the main lamp hole 26 in the housing 12.
  • a head part of the nighttime lamp 14 is projected forward from the frontal lamp hole 34 formed in the extension 16.
  • the extension 16 is warped leftward while extending from the rear end to a front portion, and forms a right side of a side wall of the cylindrical structure 36.
  • the extension 16 further extends from a position on an inner side of the side wall of the cylindrical structure 36 to a front portion shifted to the left, defines the frontal lamp hole 34, and again extends obliquely forward and to the left.
  • the extension 16 is bent forward to form a left side of the side wall of the cylindrical structure 36.
  • the extension 16 defines the frontal auxiliary lamp hole 38 in a front region on the left side of the cylindrical structure 36, and further extends obliquely forward and to the left until reaching the end on the left side.
  • the edge 50 is projected forward in a region from the side wall of the cylindrical structure 36 to the left end.
  • the outer lens 18 extends forward from its rear end along the contour of the extension 16 while shifting to the left toward a forward end. Right and left ends of the outer lens 18 are brought into contact with right and left edges of the housing 12. An inner surface of the outer lens 18 may be applied with an antifog coating to prevent a fog.
  • an upper edge portion and a lower edge portion of the housing 12 include upper and lower lens receiving grooves 44 and 46 formed in the shape of a letter U which is open toward the outside.
  • An upper edge of the outer lens 18 is inserted into the upper lens receiving groove 44 and fixed thereto by means of an adhesive agent 48.
  • a lower edge of the outer lens 18 is inserted into the lower lens receiving groove 46 and fixed thereto by means of the adhesive agent 48.
  • the outer lens 18 has a curved surface which is bulged outward between the upper lens receiving groove 44 and the lower lens receiving groove 46.
  • the housing 12 extends downward from the upper lens receiving groove 44, followed by extending oblique downward while constituting a forwardly bulged curve.
  • a space below the forwardly bulged curve corresponds to a space on the rear side of the nighttime lamp.
  • the housing 12 further extends toward the outside, and is, at a certain point, bent to extend upward until reaching the lower lens receiving groove 46.
  • the extension 16 extends downward from its upper end while slanting outward, followed by extending outward, and forms the edge 50 in the shape of a letter V projected outward. Sharing a portion from the top to a lower end of the edge 50, the extension 16 forms a valley region 52 in the shape of a letter V projected inward, and is subsequently bent downward to extend downward until reaching its lower end.
  • a distance from the valley region 52 to the outer lens 18 is greater than a distance from an upper region 54 located above the valley region 52 to the outer lens 18. Further, the distance from the valley region 52 to the outer lens 18 is also greater than a distance from a lower region 56 located below the valley region 52 to the outer lens 18. In other words, an upper space 60 sandwiched between the upper region 54 and the outer lens 18 is narrower than a valley space 58 sandwiched between the valley region 52 and the outer lens 18. Similarly, a lower space 62 sandwiched between the lower region 56 and the outer lens 18 is narrower than the valley space 58.
  • each region of the extension 16 and the outer lens 18 is defined, for example, as an average value of lengths of vertical line segments drawn from points on the region to an inner surface of the outer lens 18 along a direction vertical to the inner surface.
  • the distance may be defined as the length of a vertical line segment drawn from a point of the barycenter of each region defined on the extension 16 to the inner surface of the outer lens 18 along the direction vertical to the inner surface.
  • the distance may be defined as a maximum value among lengths of vertical line segments drawn from points on each region defined on the extension 16 to the inner surface of the outer lens 18 along the direction vertical to the inner surface.
  • the antifog coating is applied to the inner surface of the outer lens 18, a certain component contained in the antifog coating may be dissolved in the condensed moisture, and the inner surface of the outer lens 18 may be soiled with the dissolved component.
  • an air vent 66 is formed in the extension 16 to allow a lens side space between the outer lens 18 and the extension 16 to communicate with a housing side space between the extension 16 and the housing 12.
  • the air vent 66 is designed to direct moist air from the lens side space into the housing side space when a temperature difference arises between the lens side space and the housing side space, and accordingly prevent the outer lens 18 from getting fogged.
  • the CC cross section is taken at a position slightly shifted to the left from a position at which the BB cross section is taken, and shows the structure which is almost identical to the structure shown in the BB cross section other than the structure around the air vent 66.
  • the extension 16 extends downward from its upper end while slanting outward, followed by extending outward, forms the edge 50 in the shape of the letter V projected outward, and then extends into the housing 12 until reaching a lower end within the housing 12.
  • a portion of the extension 16 extends outward again over an interstice between that portion and a region of the extension 16 extending from the edge 50 into the housing 12, and is subsequently bent downward to extend below until reaching the lower end.
  • the air vent 66 is formed between the region of the extension 16 extending from the edge 50 into the housing 12 and the portion of the extension 16 extending outward again.
  • a region of the extension 16 extending from an upper edge of the air vent 66 into the housing 12 constitutes a part of a light shielding structure 68 which will be described below.
  • FIG. 7 shows a perspective view of a region around the air vent 66.
  • the perspective view is an enlarged view showing a portion encircled by a dotted dashed circle 40 indicated in FIG. 3 .
  • the air vent 66 of a rectangular shape which is elongated in a lateral direction is formed in a deepest region of a lower inclined surface of the edge 50; i.e. a deepest region of an upper inclined surface of the valley region 52.
  • FIG. 8 shows the region illustrated in FIG. 7 in a perspective view which is viewed from an inner side of the region.
  • the air vent 66 is covered on its inner side with the light shielding structure 68.
  • the light shielding structure 68 has a front wall 72, a rear wall 74, a top plate 76, and an inner wall 78.
  • An outer edge of the front wall 72 is in contact with a forward end of the air vent 66, and an outer edge of the rear wall 74 is in contact with a rear end of the air vent 66.
  • An outer edge of the top plate 76 is in contact with an upper end of the air vent 66, and front and rear edges of the top plate 76 connect with an upper edge of the front wall 72 and an upper edge of the rear wall 74, respectively.
  • An upper edge of the inner wall 78 connects with an inner edge of the top plate 76, and front and rear edges of the inner wall 78 connect with an inner edge of the front wall 72 and an inner edge of the rear wall 74, respectively.
  • the inner wall 78 is extended downward beyond the front wall 72 and the rear wall 74.
  • the front wall 72, the rear wall 74, the top plate 76, and the inner wall 78 constitute the light shielding structure 68 in the shape of a hood which is open both in an outward direction and in a downward direction, and is configured to cover the air vent 66 on its inner side.
  • the light shielding structure 68 blocks optical paths of light propagating toward the air vent 66 from every location within the housing. In this way, the light shielding structure 68 is configured to block light which is emitted from the nighttime lamp into the housing, and propagates toward the air vent 66 within the housing.
  • FIG. 9 shows an enlarged view of a region around the air vent 66 in the CC cross section.
  • a phenomenon occurring in the vehicle lighting fixture will be described.
  • the vehicle lighting fixture is exposed to sunlight, because the upper space 60 and the lower space 62 are both smaller than the valley space 58, temperatures of the upper space 60 and the lower space 62 are apt to become higher than that of the valley space 58.
  • the higher temperatures of the upper space 60 and the lower space 62 than the temperature of the valley space 58 cause air to flow from both the upper space 60 and the lower space 62 toward the valley space 58 as indicated by arrows 70.
  • the space inside the housing 12 tends to have a temperature lower than that of the valley space 58.
  • the temperature of the space inside the housing 12 that is lower than the temperature of the valley space 58 causes the air having flowed from the upper space 60 and the lower space 62 into the valley space 58 to further flow through the air vent 66 into the housing 12.
  • the ventilation hole 32 (shown in FIG. 4 ) formed in the housing 12 connects the space inside the housing 12 to a space outside the housing 12. In this way, air is allowed to flow easily within the housing 12, which encourages a phenomenon in which air flows from the upper space 60 and the lower space 62 into the valley space 58, and then further flows through the air vent 66 into the housing 12.
  • the air having entered the valley space 58 further flows through the air vent 66 into the housing 12. This hampers moisture in the air from condensing in the valley space 58, and accordingly prevents fogging of the outer lens 18. Further, when the antifog coating is applied to the inner surface of the outer lens 18, the above-described structure reduces the possibility that a particular component contained in the antifog coating may be dissolved in the condensed moisture, thereby soiling the outer lens 18.
  • a light diffusing surface may be formed on an inner surface of the housing 12.
  • the light diffusing surface may be a surface on which fine asperities are formed by surface texturing, horning, or other processing. Light incident upon the light diffusing surface undergoes irregular reflection, which avoids causing light emitted from the nighttime lamp 14 into the housing 12 to be reflected only toward the air vent 66.
  • a light diffusing surface 64 is formed around an inner corner of a bottom surface of the housing 12.
  • the extension has a first region and a second region adjacent to the first region, which are located at different distances from the outer lens 18, and in the extension, the air vent 66 is provided in the second region which is located at a greater distance from the outer lens 18.
  • the above-described upper region 54 and the lower region 56 correspond to the first region
  • the valley region 52 corresponds to the second region (see FIG. 6 ).
  • the second region may be a region which is depressed inward relative to the first region, and the air vent may be provided in the region depressed inward.
  • the extensions 16 shown in FIG. 3 there are various extensions for the vehicle lighting fixture, and some of the extensions may have an uneven shape in which projections and depressions are defined in accordance with ornamental designs.
  • the air vent may be provided in an inwardly depressed region of a typical extension having an uneven shape.
  • the air vent may be provided in a region of the extension opposed to the depressed region of the outer lens.
  • FIG. 10 shows a cross section view of a vehicle lighting fixture according to another embodiment.
  • the cross section view of FIG. 10 corresponds to the CC cross section in the previous embodiment.
  • the same components as those of the previous embodiment shown in FIGs. 1 to 9 are designated by the same reference numerals as those of the previous embodiment, and the descriptions related to the components will be simplified.
  • an extension 90 does not have any edge or any valley region, and is designed to have a curved surface which is outwardly swollen. A region constituting the outwardly swollen curved surface has the air vent 66, and the air vent 66 is covered on its inner side with the light shielding structure 68.
  • the extension 90 extends downward from the air vent 66 to a lower end.
  • a reflection treatment for an ornamental purpose is applied to an outer surface (a surface on an outer lens 18 side) of a reflective region 82 provided around the air vent 66, with a reflective material 80 being deposited on the outer surface of the reflection region 82.
  • the reflection treatment may include metal vapor deposition and coating of a light reflecting paint.
  • the reflection treatment is not applied to an outer surface of non-reflective regions 84 located above and below the reflective region 82, and the surface of the material which forms the extension 90 is exposed.
  • a reflective space 86 sandwiched between the reflective region 82 and the outer lens 18 and a non-reflective space 88 sandwiched between the non-reflective region 84 and the outer lens 18 have a characteristic feature as described below. That is, when the vehicle lighting fixture is exposed to sunlight, the non-reflective space 88 is more apt to be increased in temperature than the reflective space 86. This is because the non-reflective region 84 has an emissivity (a rate of radiation) higher than that of the reflective region 82, and therefore absorbs heat easily from sunlight. For this reason, a flow of air exhibits a strong tendency to occur in a direction from the non-reflective space 88 toward the reflective space 86 when the vehicle lighting fixture is exposed to sunlight.
  • emissivity a rate of radiation
  • the air vent 66 is provided in the reflective region 82 in the vehicle lighting fixture shown in FIG. 10 . Due to occurrence of the same phenomenon as that described with reference to FIG. 9 , air, which has flowed from the non-reflective space 88 into the reflective space 86, further moves through the air vent 66 into the housing 12. This hampers moisture in the air from condensing within the reflective space 86, which contributes to suppression of fogging of the outer lens 18. In addition, when the antifog coating is applied to the inner surface of the outer lens 18, the possibility that a particular component contained in the antifog coating may be dissolved in the condensed moisture, resulting in soiling of the outer lens 18 is reduced.
  • the extension has a first region and a second region adjacent to the first region which are warmed at different rates by sunlight, and, in the extension, the air vent 66 is formed in the second region which is less apt to be warmed.
  • a value indicative of the rate of being easily warmed by sunlight may be the emissivity.
  • the above-described non-reflective region 84 corresponds to the first region
  • the reflective region 82 corresponds to the second region. That is, because the reflective region 82 being the second region is less apt to be warmed by sunlight than the non-reflective region 84 being the first region, the air vent 66 is arranged in the reflective region 82.
  • two regions which are warmed at different rates may be, in addition to the above-described pair of the reflective region 82 and the non-reflective region 84, two regions coated with paints of different color.
  • a region coated with paint of a pale color is less apt to become warm than a region coated with a paint of a dark color. Accordingly, the air vent may be formed in the region coated with the paint of a pale color.
  • the two regions which are warmed at different rates may be two regions formed of different materials whose emissivities differ from each other, or two regions applied with different surface treatments (such as matte finishing or glossy finishing).
  • the vehicle lighting fixture has been described with reference to the example in which the vehicle lighting fixture is used as a headlight on the right side of a motor vehicle.
  • a headlight on the left side of the motor vehicle has a structure which is mirror symmetrical to the headlight on the right side.
  • the vehicle lighting fixture according to this disclosure may be implemented as other lighting fixtures, such as a taillight and a fog lamp.
  • extension used as a design component has been described.
  • extensions functioning as a reflector which is configured to reflect light from a lamp to a forward region.
  • This disclosure may be implemented as the extension functioning as the reflector.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP19165091.0A 2018-03-26 2019-03-26 Vehicle lighting fixture Withdrawn EP3546823A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018057467A JP6984516B2 (ja) 2018-03-26 2018-03-26 車両用灯具

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EP3546823A1 true EP3546823A1 (en) 2019-10-02

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EP19165091.0A Withdrawn EP3546823A1 (en) 2018-03-26 2019-03-26 Vehicle lighting fixture

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JP (1) JP6984516B2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4435499A2 (en) 2019-09-18 2024-09-25 Mitsui Chemicals, Inc. Benzotriazole compound, light absorber, and resin composition

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19814300A1 (de) * 1998-03-31 1999-10-07 Volkswagen Ag Scheinwerfer oder Leuchte
US6224247B1 (en) * 1997-09-04 2001-05-01 Koito Manufacturing Co., Ltd. Vehicular lamp
JP2004119198A (ja) 2002-09-26 2004-04-15 Kanto Auto Works Ltd 自動車用ランプ
WO2010104552A2 (en) * 2009-03-13 2010-09-16 Gore Enterprise Holdings, Inc. Moisture resistant coatings for polymeric enclosures
JP2012003958A (ja) 2010-06-17 2012-01-05 Ichikoh Ind Ltd 車両用前照灯
DE102014205602A1 (de) * 2013-03-29 2014-10-02 Honda Motor Co., Ltd. Scheinwerfereinrichtung für ein Kraftrad
DE202016105206U1 (de) * 2015-10-07 2016-09-30 Hyundai Mobis Co., Ltd. Lüftungsvorrichtung für ein Leuchtenmodul in einem Fahrzeug

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6224247B1 (en) * 1997-09-04 2001-05-01 Koito Manufacturing Co., Ltd. Vehicular lamp
DE19814300A1 (de) * 1998-03-31 1999-10-07 Volkswagen Ag Scheinwerfer oder Leuchte
JP2004119198A (ja) 2002-09-26 2004-04-15 Kanto Auto Works Ltd 自動車用ランプ
WO2010104552A2 (en) * 2009-03-13 2010-09-16 Gore Enterprise Holdings, Inc. Moisture resistant coatings for polymeric enclosures
JP2012003958A (ja) 2010-06-17 2012-01-05 Ichikoh Ind Ltd 車両用前照灯
DE102014205602A1 (de) * 2013-03-29 2014-10-02 Honda Motor Co., Ltd. Scheinwerfereinrichtung für ein Kraftrad
DE202016105206U1 (de) * 2015-10-07 2016-09-30 Hyundai Mobis Co., Ltd. Lüftungsvorrichtung für ein Leuchtenmodul in einem Fahrzeug

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JP6984516B2 (ja) 2021-12-22
JP2019169403A (ja) 2019-10-03

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