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JP5675203B2 - Vehicle lighting - Google Patents

Vehicle lighting Download PDF

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Publication number
JP5675203B2
JP5675203B2 JP2010172956A JP2010172956A JP5675203B2 JP 5675203 B2 JP5675203 B2 JP 5675203B2 JP 2010172956 A JP2010172956 A JP 2010172956A JP 2010172956 A JP2010172956 A JP 2010172956A JP 5675203 B2 JP5675203 B2 JP 5675203B2
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Prior art keywords
angle
inclined surface
lamp
convex portion
convex
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JP2012033413A (en
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雅典 大野
雅典 大野
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

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

Description

本発明は、車両用灯具に係り、特に灯具の点灯時の配光性能の向上、および灯具の点灯時、非点灯時の意匠性の向上に関するものである。 The present invention relates to a vehicular lamp, and more particularly, to an improvement in light distribution performance when the lamp is turned on, and an improvement in design when the lamp is turned on or not.

従来、LEDを用いた車両用灯具の分野においては、図８に図示のように、LEDチップ８の導電パターン、車体色の塗料を塗装した絶縁基板上に、導電パターンと複数のLEDチップ８が実装され、LEDチップ８に対応した凸レンズを含む透明樹脂によって覆われ、凸レンズ１２以外の表面に車体色の塗料を塗布した塗装部２１とで構成されたものがある。 Conventionally, in the field of vehicular lamps using LEDs, as shown in FIG. 8, a conductive pattern and a plurality of LED chips 8 are formed on an insulating substrate coated with a conductive pattern of the LED chip 8 and a body color paint. There are some which are mounted and covered with a transparent resin including a convex lens corresponding to the LED chip 8, and are configured by a coating portion 21 in which a body color paint is applied to the surface other than the convex lens 12.

実開平５−２５６０４号公報Japanese Utility Model Publication No. 5-25604

しかしながら、上記特許文献の車両用灯具４によれば、車体色が黒いものであれば灯具を正面から見たときに、レンズの中が黒く見えてしまい非点灯時の意匠性が低下する。また車体色が明るい色のものであれば灯具を正面から見たときに、LEDチップから出射した光のうち凸レンズの入射面で反射される光が絶縁基板に入射した後、再度凸レンズに入射し、出射する際に灯具の照射方向とは異なる照射方向に光が照射され、グレア光の原因となる問題がある。 However, according to the vehicle lamp 4 of the above-mentioned patent document, if the vehicle body color is black, when the lamp is viewed from the front, the inside of the lens looks black and the design when not lit decreases. Also, if the body color is light, when the lamp is viewed from the front, light reflected from the incident surface of the convex lens out of the light emitted from the LED chip enters the insulating substrate and then enters the convex lens again. When emitted, light is irradiated in an irradiation direction different from the irradiation direction of the lamp, causing a problem of causing glare light.

本願は、上記問題点に鑑みてなされたものであり、灯具非点灯時の意匠性を向上させ、灯具の点灯時にはグレア光を無くすことを目的とするものである。 The present application has been made in view of the above-described problems, and has an object to improve the design when the lamp is not lit and to eliminate glare when the lamp is lit.

上記課題を解決するため、請求項１に記載の発明は光学レンズと、基板上に搭載された発光素子と、前記基板上の少なくとも発光素子の周縁に遮蔽部材を塗布または貼り付けることにより形成された遮蔽部と、からなり、前記遮蔽部は前記光学レンズの焦点位置よりも灯具の照射方向X後方に位置し、前記遮蔽部のうち灯具の断面形状において前記発光素子の下側に位置する光源周縁下方部には傾斜面を有する複数の凸状部が形成され、前記凸状部を形成する傾斜面の傾斜角度を前記凸状部の頂点から30°〜60°の範囲で形成されている車両用灯具を特徴とする。 In order to solve the above problems, the invention described in claim 1 is formed by applying or pasting an optical lens, a light emitting element mounted on a substrate, and a shielding member on at least a periphery of the light emitting element on the substrate. A light source located at the rear of the illumination direction X of the lamp relative to the focal position of the optical lens, and located below the light emitting element in the sectional shape of the lamp of the shield. A plurality of convex portions having inclined surfaces are formed in the lower peripheral portion, and the inclination angle of the inclined surfaces forming the convex portions is formed in a range of 30 ° to 60 ° from the apex of the convex portions. Features a vehicular lamp.

請求項１に記載の発明によれば、本発明の車両用灯具の基板上の少なくとも光源周縁に前記遮蔽部材を設けたことによって、光学レンズを通して車両用灯具を見た場合、発光素子周囲の給電パターン、取付構造等の光源の周辺部品を隠せるものとなった。 According to the first aspect of the present invention, when the vehicular lamp is viewed through an optical lens by providing the shielding member at least on the periphery of the light source on the substrate of the vehicular lamp of the present invention, power feeding around the light emitting element is performed. Peripheral parts of the light source such as patterns and mounting structures can be hidden.

また、請求項１に記載の発明によれば、前記遮蔽部のうち、光源周縁下方部に設けられた凸状部の作用により光源から照射され、光学レンズ入射面で反射される光が前記凸状部で反射されることにより、グレア光が減少されるものとなる。 According to the first aspect of the present invention, the light that is irradiated from the light source by the action of the convex portion provided at the light source peripheral lower portion of the shielding portion and reflected by the optical lens incident surface is the convex portion. The glare light is reduced by being reflected by the shape portion.

また、請求項１に記載の発明によれば、前記遮蔽部のうち、光源周縁下方部に設けられた凸状部の作用により、灯具の非点灯時には灯具の外部から入射した光を反射し光学レンズ内に入射することによりレンズが明るく見え車両用灯具の意匠性を向上させるものとなる。 Further, according to the first aspect of the present invention, the light incident from the outside of the lamp is reflected and optically reflected when the lamp is not lit by the action of the convex portion provided at the lower portion of the light source peripheral edge of the shielding portion. By entering the lens, the lens looks bright and the design of the vehicular lamp is improved.

請求項２に記載の発明は、前記光源周縁下方部の凸状部を形成する一方の傾斜面は、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xの下方向に伸びるように形成され、且つ前記凸状部の傾斜面の法線がレンズ内を通るように形成された凸状部において、前記光源から出た光が前記光学レンズの入射面で反射され前記凸状部へ入射する光の光線と、前記凸状部の傾斜面に入射し前記凸状部の傾斜面に入射した点と前記光学レンズ入射面の下端部とを結ぶ線とによって形成される角度領域において、前記凸状部の傾斜面の法線によって前記角度領域を分割し、前記分割された角度領域のうち発光素子に近い領域の角度を第１の角度とし、発光素子と離れた領域の角度を第２の角度としたとき、第1の角度≧第2の角度となる請求項1に記載の車両用灯具であることを特徴とする。 According to a second aspect of the present invention, the one inclined surface forming the convex portion at the lower portion of the light source periphery has a normal line of the inclined surface of the convex portion below the irradiation direction X of the lamp in the sectional shape of the lamp. The light emitted from the light source is reflected by the incident surface of the optical lens in the convex portion formed so as to extend in the direction and the normal line of the inclined surface of the convex portion passes through the lens. forming a beam of light incident on the convex portion, by a line connecting the lower end portion of the a point that is incident on the inclined surface of the convex portion is incident on the inclined surface of the convex portions optical lens entrance surface In the angle region, the angle region is divided by the normal line of the inclined surface of the convex portion, and the angle of the region close to the light emitting element among the divided angle regions is set as the first angle, and is separated from the light emitting element. If the angle of the area is the second angle, the first angle ≧ the second angle It characterized in that it is a vehicle lamp according to claim 1.

請求項２に記載の発明によれば、前記凸状部の傾斜面が、光源から出射し光学レンズの入射面で反射され凸状部材の傾斜面に入射した光を1回の反射によりレンズ外に照射するためグレアの原因となる光を減少するものとなる。 According to the second aspect of the present invention, the inclined surface of the convex portion has the light emitted from the light source, reflected by the incident surface of the optical lens, and incident on the inclined surface of the convex member. As a result, the light that causes glare is reduced.

また、請求項２に記載の発明によれば、前記凸状部の傾斜面が、非点灯時に外部からの入射した光を傾斜面で反射した場合に1回の反射により光学レンズ内に入射するものとなるため光学レンズ内を明るく見せ灯具の意匠性を向上させることができる。 According to the second aspect of the present invention, the inclined surface of the convex portion enters the optical lens by a single reflection when light incident from the outside is reflected by the inclined surface when not turned on. As a result, the interior of the optical lens can be brightened and the design of the lamp can be improved.

請求項３に記載の発明は、前記光源周縁下方部の凸状部を形成する一方の傾斜面は、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xよりも上方向に伸び、前記光学レンズ内を通るように形成され、前記光源から出た光が前記光学レンズの入射面で反射され遮蔽部の凸状部の傾斜面へ入射する光の光線と、前記凸状部の傾斜面に入射した点と前記光学レンズ入射面の上端部とを結ぶ線とによって形成される角度領域において、前記凸状部の傾斜面の法線によって前記角度領域を分割し、前記分割された角度領域のうち、発光素子に近い領域の角度を第３の角度とし、発光素子と離れた領域の角度を第４の角度としたとき、第４の角度≧第３の角度となる請求項1に記載の車両用灯具であることを特徴とする。 According to a third aspect of the present invention, the one inclined surface forming the convex portion at the lower portion of the light source periphery has a normal line of the inclined surface of the convex portion in the cross-sectional shape of the lamp rather than the irradiation direction X of the lamp. A light beam extending upward and passing through the optical lens, and the light emitted from the light source is reflected by the incident surface of the optical lens and incident on the inclined surface of the convex portion of the shielding portion; and In the angle region formed by the line connecting the point incident on the inclined surface of the convex portion and the upper end portion of the optical lens incident surface, the angular region is divided by the normal of the inclined surface of the convex portion, Of the divided angular regions, when the angle of the region close to the light emitting element is the third angle and the angle of the region away from the light emitting element is the fourth angle, the fourth angle ≧ the third angle The vehicle lamp according to claim 1, wherein

請求項３に記載の発明によれば前記凸状部の傾斜面が光学レンズの入射面で反射され凸状部材の傾斜面に入射した光を1回の反射によりレンズ外に照射するためグレアの原因となる光を減少するものとなる。 According to the third aspect of the present invention, since the inclined surface of the convex portion is reflected by the incident surface of the optical lens and incident on the inclined surface of the convex member is irradiated outside the lens by a single reflection, It will reduce the light that causes it.

請求項４に記載の発明は、前記光源周縁下方部の凸状部を形成する一方の傾斜面のうち、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xの下方向を向くように形成され、且つ前記凸状部の傾斜面の法線がレンズの外を通るように形成された凸状部において、前記灯具の照射方向Xと平行方向で凸状部の傾斜面の中間点を通る線と前記凸状部の法線とで形成される角度を第５の角度とし、前記灯具の照射方向Xと平行方向で凸状部の傾斜面の中間点を通る線と前記凸状部の傾斜面の反射した点と前記光学レンズ入射面の下端部とを結ぶ線を第６の角度としたとき、第５の角度≧第６の角度となる請求項1に記載の車両用灯具であることを特徴とする。 According to a fourth aspect of the present invention, the normal of the inclined surface of the convex portion in the cross-sectional shape of the lamp among the one inclined surface forming the convex portion at the lower portion of the light source periphery is the irradiation direction X of the lamp. In the convex part formed so as to face downward and the normal of the inclined surface of the convex part passes outside the lens, the convex part is parallel to the irradiation direction X of the lamp. The angle formed by the line passing through the intermediate point of the inclined surface and the normal line of the convex portion is the fifth angle, and passes through the intermediate point of the inclined surface of the convex portion in a direction parallel to the irradiation direction X of the lamp. The fifth angle ≧ the sixth angle, wherein a line connecting the line and a reflected point of the inclined surface of the convex portion and a lower end portion of the optical lens incident surface is a sixth angle. It is a vehicle lamp as described.

請求項４に記載の発明によれば前記凸状部の傾斜面が、光学レンズの入射面で反射された光を1回反射することによりレンズ外に照射する光と、隣接する凸状部へ反射した後、レンズ内に照射する光とに拡散し、グレアの原因となる光を減少するものとなる。 According to the fourth aspect of the present invention, the inclined surface of the convex portion reflects the light reflected from the incident surface of the optical lens once to irradiate the lens and the adjacent convex portion. After reflection, the light diffuses into the light irradiated into the lens, and the light causing the glare is reduced.

請求項５に記載の発明は前記光源周縁下方部の凸状部を形成する一方の傾斜面のうち、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xの上方向に伸びるように形成され、且つ前記凸状部の傾斜面の法線がレンズの外を通るように形成された凸状部において、灯具の照射方向Xと、前記凸状部の傾斜面の法線とで形成される角度を第７の角度とし、灯具の照射方向X、前記凸状部の傾斜面の中間点とレンズの入射面の上端部とで形成される角度を第８の角度としたとき、第７の角度≧第８の角度となる請求項1に記載の車両用灯具であることを特徴とする。 According to a fifth aspect of the present invention, the normal of the inclined surface of the convex portion in the cross-sectional shape of the lamp among the one inclined surface forming the convex portion of the light source peripheral lower portion is above the irradiation direction X of the lamp. In the convex part formed so as to extend in the direction and the normal line of the inclined surface of the convex part passes outside the lens, the irradiation direction X of the lamp and the inclined surface of the convex part The angle formed by the normal line is the seventh angle, and the lamp irradiation direction X, the angle formed by the midpoint of the inclined surface of the convex portion and the upper end of the incident surface of the lens is the eighth angle. The vehicle lamp according to claim 1, wherein the seventh angle ≧ the eighth angle.

請求項５に記載の発明によれば前記凸状部の傾斜面が、光学レンズの入射面で反射された光を1回反射することにより灯具下方のレンズ外に照射する光と、隣接する凸状部へ反射された後、レンズ内に照射する光とに拡散しグレアの原因となる光を減少するものとなる。 According to the fifth aspect of the present invention, the inclined surface of the convex portion reflects the light reflected from the incident surface of the optical lens once to irradiate the light below the lamp and the adjacent convex portion. After being reflected by the shape portion, it diffuses into the light irradiated into the lens and reduces the light that causes glare.

以上のように、本発明によれば、灯具の非点灯時の意匠性を向上させることが可能となりるとともに灯具の点灯時にはグレア光を無くすことが可能となるものである。 As described above, according to the present invention, it is possible to improve the designability when the lamp is not lit and to eliminate glare light when the lamp is lit.

は本発明の第１の実施形態を示す車両用灯具１００の斜視図である。1 is a perspective view of a vehicular lamp 100 showing a first embodiment of the present invention. FIG. は本発明第1実施例である車両用灯具の正面図を示す。FIG. 1 shows a front view of a vehicular lamp that is a first embodiment of the present invention. は図１に示した車両用灯具１００のA−A断面図を示す。FIG. 2 is a cross-sectional view of the vehicular lamp 100 shown in FIG. (a)(b)は本発明の第２の実施例、光源周縁部を示す車両用灯具１００のA−A拡大断面図である。(a) (b) is AA expanded sectional drawing of the vehicle lamp 100 which shows the 2nd Example of this invention, and a light source peripheral part. は本発明の第２の実施例、光源周縁部を示す車両用灯具１００のA−A拡大断面図である。These are AA expanded sectional views of the vehicle lamp 100 which shows the 2nd Example of this invention, and a light source peripheral part. は本発明の第３の実施例、光源周縁部を示す車両用灯具１００のA−A拡大断面図である。These are the AA expanded sectional views of the vehicle lamp 100 which shows the 3rd Example of this invention, and a light source peripheral part. は本発明の第３の実施例、光源周縁部を示す車両用灯具１００のA−A拡大断面図である。These are the AA expanded sectional views of the vehicle lamp 100 which shows the 3rd Example of this invention, and a light source peripheral part. は従来の車両用灯具を示す。Indicates a conventional vehicular lamp.

以下に、本発明を実施例に基づいて説明する。 Hereinafter, the present invention will be described based on examples.

本実施形態の車両用灯具１００はヘッドランプなどに用いられるものであり、図１および図３に示すように灯具の照射方向Xに向かって非球面の光学レンズ１０１、車両用灯具の光源となるLED光源１０２、LEDを搭載した基板１０３、基板１０３の背面には放熱部材としてヒートシンク１０７が形成され、基板１０３と光学レンズ１０１の間には基板１０３と光学レンズを固定する固定部材１０６が形成され、前記基板１０３上には黒色もしくは灰色や緑、青色などの他の色の塗装、もしくはシール状のフィルムなどの遮蔽部材を基板に塗布、貼り付けた遮蔽部１０４が形成されている。また、図２の光源と基板の正面図に図示のように、遮蔽部１０４のうち光源周縁の光源の下方に位置する光源周縁下方部１０５には、図３〜７に図示のように傾斜面を備えた例えばポリカーボネイトなどの複数の耐熱性部材で形成された凸状部１１０が形成されている。また、図示はしていないが本発明の車両用灯具には、ヒートシンク１０７の後方にヒートシンク１０７、LED光源１０２を覆うように灯具のカバー、光学レンズの前方にアウターレンズなどが設けられる。 The vehicular lamp 100 according to the present embodiment is used for a headlamp or the like. As shown in FIGS. 1 and 3, the aspherical optical lens 101 in the lamp irradiation direction X is used as a light source for the vehicular lamp. A heat sink 107 is formed as a heat radiating member on the back surface of the LED light source 102, the LED 103, and the substrate 103. A fixing member 106 for fixing the substrate 103 and the optical lens is formed between the substrate 103 and the optical lens 101. On the substrate 103, there is formed a shielding portion 104 in which a coating member of black or gray, green, blue, or other colors, or a shielding member such as a sealing film is applied and pasted to the substrate. Further, as shown in the front view of the light source and the substrate in FIG. 2, the light source peripheral lower portion 105 located below the light source in the light source peripheral portion of the shielding portion 104 has an inclined surface as shown in FIGS. For example, a convex portion 110 made of a plurality of heat-resistant members such as polycarbonate is provided. Although not shown, the vehicular lamp of the present invention is provided with a heat sink 107 behind the heat sink 107, a lamp cover so as to cover the LED light source 102, and an outer lens in front of the optical lens.

遮蔽部１０４は、黒色もしくは灰色や緑、青色などの他の色の塗装、もしくはシール状のフィルムを遮蔽部材として基板に塗布、貼り付けたことによって、光学レンズを通して車両用灯具を見た場合、発光素子周囲の給電パターン、取付構造等の光源の周辺部品を隠せるものとなる。また、図２には基板全面に遮蔽部材を塗布するように図示しているが、基板上の光源の周辺部品や給電パターンなどを隠すことが出来ればよいので、本発明では少なくとも光源周縁下方部にだけ遮蔽部材を塗布したものであっても良い。 When the shielding unit 104 is viewed through the optical lens by coating or pasting a black or gray, green, blue, or other color or other color coating or sealing film on the substrate as a shielding member, The peripheral parts of the light source such as the power feeding pattern and the mounting structure around the light emitting element can be hidden. 2 shows that the shielding member is applied to the entire surface of the substrate. However, since it is sufficient that the peripheral components of the light source and the power supply pattern on the substrate can be concealed, in the present invention, at least the light source peripheral lower portion. The shielding member may be applied only to the surface.

図３に記載の車両用灯具１００の凸状部１１０の傾斜面は、凸状部１１０の頂点から ３０〜６０°の角度の範囲で傾斜した傾斜面を備えて形成されており、前記角度の範囲で凸状部の傾斜面を形成したことにより、LED光源１０２から出射した光のうち光学レンズ１０１の入射面１１１で反射した光を受けた後、隣接する凸状部１１０の傾斜面で複数回反射され光学レンズから出射するものとなる。さらに灯具の非点灯時には、光学レンズの外部から入射する光を凸状部の傾斜面で反射した後、光学レンズ１０１から出射するものとなる。このように本発明の第１の実施例では灯具の点灯時にはグレア光の原因となる光が緩和され、非点灯時には外部光を反射して光学レンズが明るく見えるようにしたものである。 The inclined surface of the convex portion 110 of the vehicular lamp 100 shown in FIG. 3 is formed with an inclined surface inclined at an angle of 30 to 60 ° from the apex of the convex portion 110, and the angle By forming the inclined surface of the convex portion in the range, after receiving the light reflected from the incident surface 111 of the optical lens 101 out of the light emitted from the LED light source 102, a plurality of the inclined surfaces of the adjacent convex portions 110 are received. The light is reflected once and emitted from the optical lens. Further, when the lamp is not lit, the light incident from the outside of the optical lens is reflected by the inclined surface of the convex portion and then emitted from the optical lens 101. As described above, in the first embodiment of the present invention, light that causes glare light is alleviated when the lamp is turned on, and external light is reflected when the lamp is not turned on so that the optical lens looks bright.

図４に図示の車両用灯具の断面図は本発明の第２の実施例であり、光源周縁下方部１０５の凸状部１１０の傾斜面を30〜60°の角度範囲とし、さらに凸状部１１０の傾斜面の法線１０８が、灯具の照射方向Xよりも下方向に伸び、レンズ内を通るように形成された凸状部において、光源１０２から出た光が非球面光学レンズ１０１の入射面１１１で反射され凸状部１１０の傾斜面へ入射する光の光線と、前記凸状部の傾斜面の入射した点と前記光学レンズ入射面の下端部とを結ぶ線Zとによって形成される角度領域において、凸状部１１０の傾斜面の法線１０８によって前記角度領域を分割し、分割された角度領域のうち、LED光源１０２に近い領域の角度をa１とし、LED光源１０２と離れた領域の角度をa2とし、前記角度領域の角度がa1≧a2となるように形成したものである。 The sectional view of the vehicular lamp shown in FIG. 4 is a second embodiment of the present invention, in which the inclined surface of the convex portion 110 of the light source peripheral lower portion 105 has an angle range of 30 to 60 °, and the convex portion. The normal 108 of the inclined surface 110 extends downward from the illumination direction X of the lamp, and the light emitted from the light source 102 is incident on the aspherical optical lens 101 in a convex portion formed so as to pass through the lens. and the ray of incident light is reflected by the surface 111 to the inclined surface of the convex portion 110 is formed by a line Z connecting the lower end of the the point where the incident of the inclined surfaces of the convex portions optical lens entrance surface In the angle region, the angle region is divided by the normal 108 of the inclined surface of the convex portion 110. Of the divided angle regions, the angle of the region close to the LED light source 102 is set to a1, and the distance from the LED light source 102 is separated. The angle of the area is a2, and the angle of the angle area is a1 ≧ a2. It is obtained by forming in.

それにより図４(a)に図示のように灯具の点灯時には、LED光源１０２から出射した光のうち光学レンズ１０１の入射面１１１で反射した光を凸状部材１１０の傾斜面で反射し、光学レンズの外側に出射するものとなる。さらに灯具の非点灯時には、図４(ｂ)に図示のように光学レンズ１０１の外部から入射する光を凸状部の傾斜面で反射した後、光学レンズ１０１から出射するものとなる。 4A, when the lamp is turned on, the light reflected from the incident surface 111 of the optical lens 101 out of the light emitted from the LED light source 102 is reflected by the inclined surface of the convex member 110, and optical. The light is emitted to the outside of the lens. Further, when the lamp is not lit, light incident from the outside of the optical lens 101 is reflected by the inclined surface of the convex portion and then emitted from the optical lens 101 as shown in FIG.

さらに本発明の第２の実施例によれば図５に図示のように、光源周縁下方部１０５の凸状部１１０の傾斜面を30〜60°の角度範囲とし、光源周縁下方部１０５の凸状部１１０の傾斜面の法線１０８が灯具の照射方向Xよりも上方向に伸び、レンズ内を通るように形成され、LED光源１０２から出た光が非球面光学レンズ１０１の入射面１１１で反射され凸状部１１０の傾斜面へ入射する光の光線と、前記凸状部の傾斜面に入射した点と前記光学レンズ入射面の上端部とを点結ぶ線Zとによって形成される角度領域において、凸状部１１０の傾斜面の法線１０８によって前記角度領域を分割し、前記分割された角度領域のうち、LED光源１０２に近い領域の角度をb1とし、LED光源１０２と離れた領域の角度をb2としたとき、b2≧b1となるように形成したものである。 Further, according to the second embodiment of the present invention, as shown in FIG. 5, the inclined surface of the convex portion 110 of the light source peripheral lower portion 105 is set to an angle range of 30 to 60 °, and the light source peripheral lower portion 105 is convex. The normal 108 of the inclined surface of the shaped portion 110 extends upward from the illumination direction X of the lamp and passes through the lens. The light emitted from the LED light source 102 is incident on the incident surface 111 of the aspherical optical lens 101. An angle region formed by a light beam reflected and incident on the inclined surface of the convex portion 110, and a line Z connecting the point incident on the inclined surface of the convex portion and the upper end portion of the optical lens incident surface. , The angle region is divided by the normal 108 of the inclined surface of the convex portion 110, and the angle of the region close to the LED light source 102 among the divided angle regions is b1, and the region away from the LED light source 102 is Formed so that b2 ≧ b1 when the angle is b2. It is.

それにより、図５に図示のように灯具の点灯時には、LED光源１０２から出射した光のうち光学レンズ１０１の入射面１１１で反射した光１００aを凸状部材１１０の傾斜面で反射され光学レンズの外側に出射するものとなる。このように本発明の第２の実施例の凸状部材の作用により灯具の点灯時には光学レンズ１０１の外側へと光を出射し、グレア光の原因となる光が第１の実施例よりもさらに減少し、非点灯時には外部光を１回の反射により光学レンズ１０１に入射させるものとなるため、光学レンズ１０１が第１の実施例よりもより明るく見えるようにしたものである。 As a result, when the lamp is turned on as shown in FIG. 5, the light 100a reflected by the incident surface 111 of the optical lens 101 out of the light emitted from the LED light source 102 is reflected by the inclined surface of the convex member 110, and the optical lens The light is emitted to the outside. As described above, the convex member according to the second embodiment of the present invention emits light to the outside of the optical lens 101 when the lamp is turned on, and the light causing the glare light is further increased than in the first embodiment. When the light is not turned on, external light is incident on the optical lens 101 by one reflection, so that the optical lens 101 appears brighter than the first embodiment.

図６に図示の車両用灯具の断面図は本発明の第３の実施例であり、光源周縁下方部１０５の凸状部１１０の傾斜面を30〜60°の角度範囲とし、さらに凸状部１１０の一方の傾斜面の法線１０８が灯具の照射方向Xよりも下方向を向くように形成され、且つ凸状部１１０の傾斜面の法線１０８が光学レンズ１０１の外を通るように形成され、灯具の照射方向Xと平行方向であり、LED光源１０２から出射し、光学レンズ１０１の入射面１１１で反射された光が入射する凸状部の傾斜面の点を通る線Yと、凸状部１１０の法線１０８とで形成される角度をe２とし、灯具の照射方向Xと平行方向であり、凸状部の傾斜面に光学レンズの入射面１１１で反射された光が入射する傾斜面の点を通る線Yと、凸状部１１０の傾斜面に光学レンズ１０１の入射面１１１で反射された光が入射する点からレンズの端部へと伸びる線Zとで形成される角度をe1としたとき、e２≧e１となるように形成したものである。 The sectional view of the vehicular lamp shown in FIG. 6 is a third embodiment of the present invention, in which the inclined surface of the convex portion 110 of the light source peripheral lower portion 105 has an angle range of 30 to 60 °, and the convex portion. 110 is formed such that the normal 108 of one inclined surface faces downward from the illumination direction X of the lamp, and the normal 108 of the inclined surface of the convex portion 110 is formed so as to pass outside the optical lens 101. A line Y passing through the point of the inclined surface of the convex portion where the light emitted from the LED light source 102 and reflected by the incident surface 111 of the optical lens 101 enters is parallel to the irradiation direction X of the lamp. The angle formed by the normal line 108 of the shaped part 110 is e2, and is in a direction parallel to the irradiation direction X of the lamp, and the angle at which the light reflected by the incident surface 111 of the optical lens enters the inclined surface of the convex part The incident surface 111 of the optical lens 101 on the line Y passing through the surface point and the inclined surface of the convex portion 110. When the angle is reflected light which is formed by a line Z extending to the end of the lens from the point of incidence was e1, it is obtained by forming such that e2 ≧ e1.

それにより図６に図示のようにLED光源１０２から出射した光のうち光学レンズ１０１の入射面１１１で反射した光を凸状部１１０の傾斜面で受けた後、隣接する凸状部１１０の傾斜面で反射され光学レンズ１０１から出射するものとなる。また、凸状部１１０の傾斜面の位置によっては隣接する凸状部へ反射せずレンズ外に反射する光も形成するものとなる。さらに灯具の非点灯時には、図示しないが、光学レンズの外部から入射する光を凸状部の傾斜面で反射した後、光学レンズ１０１から出射するものとなる。このように本発明の第３の実施例では灯具の点灯時にはグレア光の原因となる光が緩和され、非点灯時には外部光を反射して光学レンズが明るく見えるようになるものである。 6, the light reflected from the incident surface 111 of the optical lens 101 out of the light emitted from the LED light source 102 is received by the inclined surface of the convex portion 110, and then the adjacent convex portion 110 is inclined. The light is reflected from the surface and emitted from the optical lens 101. Further, depending on the position of the inclined surface of the convex portion 110, light that does not reflect to the adjacent convex portion but reflects outside the lens is also formed. Further, when the lamp is not turned on, although not shown, light incident from the outside of the optical lens is reflected by the inclined surface of the convex portion and then emitted from the optical lens 101. As described above, in the third embodiment of the present invention, light that causes glare light is alleviated when the lamp is turned on, and external light is reflected when the lamp is not turned on so that the optical lens looks bright.

さらに本発明の第３の実施例によれば図７に記載のように、光源周縁下方部１０５の凸状部１１０の一方の傾斜面を30〜60°の角度範囲とし、さらに凸状部１１０の傾斜面の法線１０８が灯具の照射方向Xよりも上方向を向くように形成され、且つ凸状部１１０の傾斜面の法線１０８が光学レンズ１０１の外を通るように形成された凸状部１１０であり、灯具の照射方向Xと、凸状部１１０の傾斜面の法線１０８とで形成される角度をｄ２とし、灯具の照射方向Xと、凸状部１１０の傾斜面の中間点からとレンズの入射面の上端部へと伸びる線Zとで形成される角度をｄ１としたとき、ｄ２≧ｄ１となるように形成したものである。
Further, according to the third embodiment of the present invention, as shown in FIG. 7, one inclined surface of the convex portion 110 of the light source peripheral lower portion 105 is set to an angle range of 30 to 60 °, and the convex portion 110 is further formed. Is formed so that the normal 108 of the inclined surface is directed upward from the irradiation direction X of the lamp, and the normal 108 of the inclined surface of the convex portion 110 is formed so as to pass outside the optical lens 101. The angle formed by the illumination direction X of the lamp and the normal 108 of the inclined surface of the convex part 110 is d2, and the illumination direction X of the lamp and the intermediate part of the inclined surface of the convex part 110. When the angle formed by the point Z and the line Z extending to the upper end of the incident surface of the lens is d1, d2 ≧ d1.

それにより図７に図示のようにLED光源１０２から出射した光のうち光学レンズ１０１の入射面１１１で反射した光１００aは凸状部１１０の傾斜面で反射され光学レンズ１０１から出射するものとなる。さらに灯具の非点灯時には、図示しないが、光学レンズ１０１の外部から入射する光を凸状部１１０の傾斜面で反射した後、光学レンズ１０１から出射するものとなる。このように本発明の第４の実施例では灯具の点灯時にはグレア光の原因となる光が緩和され、非点灯時には外部光を反射して光学レンズが明るく見えるようになるものである。 7, the light 100a reflected by the incident surface 111 of the optical lens 101 out of the light emitted from the LED light source 102 is reflected by the inclined surface of the convex portion 110 and emitted from the optical lens 101. . Further, when the lamp is not turned on, although not shown, light incident from the outside of the optical lens 101 is reflected by the inclined surface of the convex portion 110 and then emitted from the optical lens 101. As described above, in the fourth embodiment of the present invention, light that causes glare light is alleviated when the lamp is turned on, and when the lamp is not turned on, external light is reflected to make the optical lens appear brighter.

本発明の第４の実施例としては、前記本発明の第１〜第３の実施例を適宜組み合わせたものとしてもかまわないものとする。また、図３〜７にはLED光源１０２の光軸が灯具の照射方向Xと同方向となるように配置されて図示されているが、灯具の照射方向が図示のようにX方向にあれば光源は灯具の縦断面形状において傾斜させて基板に搭載したとしても良いものとなる。 As the fourth embodiment of the present invention, the first to third embodiments of the present invention may be appropriately combined. 3 to 7 are illustrated with the optical axis of the LED light source 102 arranged in the same direction as the illumination direction X of the lamp. However, if the illumination direction of the lamp is in the X direction as illustrated, The light source may be mounted on the substrate while being inclined in the longitudinal sectional shape of the lamp.

１００…車両用灯具
１０１…光学レンズ
１０２…LED光源
１０３…基板
１０４…遮蔽部
１０５…光源周縁下方部
１０６…固定部材
１０７…ヒートシンク
１０８…法線
１１０…凸状部 DESCRIPTION OF SYMBOLS 100 ... Vehicle lamp 101 ... Optical lens 102 ... LED light source 103 ... Board | substrate 104 ... Shielding part 105 ... Light source peripheral lower part 106 ... Fixing member 107 ... Heat sink 108 ... Normal 110 ... Convex part

Claims (5)

光学レンズと、
基板上に搭載された発光素子と、
前記基板上の少なくとも発光素子の周縁に遮蔽部材を塗布または貼り付けることにより形成された遮蔽部と、からなり、前記遮蔽部は前記光学レンズの焦点位置よりも灯具の照射方向X後方に位置し、前記遮蔽部のうち灯具の断面形状において前記発光素子の下側に位置する光源周縁下方部には傾斜面を有する複数の凸状部が形成され、前記凸状部を形成する傾斜面の傾斜角度を前記凸状部の頂点から30°〜60°の範囲で形成されていることを特徴する車両用灯具。
An optical lens,
A light emitting device mounted on a substrate;
And a shielding part formed by applying or sticking a shielding member on at least the periphery of the light emitting element on the substrate, and the shielding part is located behind the irradiation direction X of the lamp from the focal position of the optical lens. A plurality of convex portions having inclined surfaces are formed in the light source peripheral lower portion located below the light emitting element in the cross-sectional shape of the lamp in the shielding portion, and the inclined surfaces forming the convex portions are inclined. A vehicular lamp characterized in that an angle is formed in a range of 30 ° to 60 ° from the apex of the convex portion.
前記光源周縁下方部の凸状部を形成する一方の傾斜面は、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xの下方向に伸びるように形成され、且つ前記凸状部の傾斜面の法線がレンズ内を通るように形成された凸状部において、前記光源から出た光が前記光学レンズの入射面で反射され前記凸状部へ入射する光の光線と、前記凸状部の傾斜面に入射し前記凸状部の傾斜面に入射した点と前記光学レンズ入射面の下端部とを結ぶ線とによって形成される角度領域において、前記凸状部の傾斜面の法線によって前記角度領域を分割し、前記分割された角度領域のうち発光素子に近い領域の角度を第１の角度とし、発光素子と離れた領域の角度を第２の角度としたとき、第１の角度≧第２の角度となることを特徴とする請求項１に記載の車両用灯具。 The one inclined surface forming the convex portion at the lower portion of the light source periphery is formed such that the normal line of the inclined surface of the convex portion extends downward in the irradiation direction X of the lamp in the sectional shape of the lamp, and In the convex part formed so that the normal of the inclined surface of the convex part passes through the lens, the light emitted from the light source is reflected by the incident surface of the optical lens and is incident on the convex part. ray and, in an angular region formed by a line connecting the lower end portion of the optical lens entrance surface and the point that has entered the inclined surface of the incident on the inclined surface of the convex portion and the convex portion, the convex The angle region is divided by the normal line of the inclined surface of the part, the angle of the region close to the light emitting element among the divided angle regions is defined as the first angle, and the angle of the region away from the light emitting element is the second angle. The first angle is equal to or greater than the second angle. The vehicle lamp as described in 2. 前記光源周縁下方部の凸状部を形成する一方の傾斜面は、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xよりも上方向に伸び、前記光学レンズ内を通るように形成され、前記光源から出た光が前記光学レンズの入射面で反射され遮蔽部の凸状部の傾斜面へ入射する光の光線と、前記凸状部の傾斜面に入射した点と前記光学レンズ入射面の上端部とを結ぶ線とによって形成される角度領域において、前記凸状部の傾斜面の法線によって前記角度領域を分割し、前記分割された角度領域のうち、発光素子に近い領域の角度を第３の角度とし、発光素子と離れた領域の角度を第４の角度としたとき、第４の角度≧第３の角度となることを特徴とする請求項１に記載の車両用灯具。 The one of the inclined surfaces forming the convex portion of the light source peripheral lower portion extends upward than the irradiation direction X of the normals lamp of the inclined surface of the convex portion in the cross-sectional shape of the lamp, in the optical lens The light emitted from the light source is reflected by the incident surface of the optical lens and is incident on the inclined surface of the convex portion of the shielding portion and the inclined surface of the convex portion. In the angle region formed by the line connecting the point and the upper end portion of the optical lens entrance surface, the angle region is divided by the normal of the inclined surface of the convex portion, and among the divided angle regions, 2. The fourth angle ≧ the third angle, wherein an angle of a region close to the light emitting element is a third angle and an angle of a region far from the light emitting element is a fourth angle. The vehicle lamp as described in 2. 前記光源周縁下方部の凸状部を形成する一方の傾斜面のうち、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xの下方向を向くように形成され、且つ前記凸状部の傾斜面の法線がレンズの外を通るように形成された凸状部において、前記灯具の照射方向Xと平行方向で凸状部の傾斜面の中間点を通る線と前記凸状部の法線とで形成される角度を第５の角度とし、前記灯具の照射方向Xと平行方向で凸状部の傾斜面の中間点を通る線と前記凸状部の傾斜面の反射した点と前記光学レンズ入射面の下端部とを結ぶ線を第６の角度としたとき、第５の角度≧第６の角度となることを特徴とする請求項１に記載の車両用灯具。 Of the one inclined surface forming the convex portion of the light source peripheral lower portion, the normal of the inclined surface of the convex portion in the cross-sectional shape of the lamp is formed so as to face the lower direction of the irradiation direction X of the lamp, And in the convex part formed so that the normal line of the inclined surface of the convex part passes outside the lens, a line passing through the intermediate point of the inclined surface of the convex part in a direction parallel to the irradiation direction X of the lamp; The angle formed by the normal line of the convex portion is a fifth angle, and the line passing through the midpoint of the inclined surface of the convex portion in a direction parallel to the irradiation direction X of the lamp and the inclined surface of the convex portion 2. The vehicle-use vehicle according to claim 1, wherein a fifth angle ≧ sixth angle is satisfied when a line connecting the reflected point and a lower end portion of the optical lens incident surface is a sixth angle. Light fixture. 前記光源周縁下方部の凸状部を形成する一方の傾斜面のうち、灯具の断面形状において前記凸状部の傾斜面の法線が灯具の照射方向Xの上方向に伸びるように形成され、且つ前記凸状部の傾斜面の法線がレンズの外を通るように形成された凸状部において、灯具の照射方向Xと、前記凸状部の傾斜面の法線とで形成される角度を第７の角度とし、灯具の照射方向X、前記凸状部の傾斜面の中間点とレンズの入射面の上端部とで形成される角度を第８の角度としたとき、第７の角度≧第８の角度となることを特徴とする請求項1に記載の車両用灯具。 Of the one inclined surface forming the convex portion of the light source peripheral lower portion, the normal of the inclined surface of the convex portion in the cross-sectional shape of the lamp is formed to extend upward in the irradiation direction X of the lamp, And in the convex part formed so that the normal line of the inclined surface of the convex part passes outside the lens, the angle formed by the irradiation direction X of the lamp and the normal line of the inclined surface of the convex part Is the seventh angle, and the irradiation angle X of the lamp and the angle formed by the midpoint of the inclined surface of the convex portion and the upper end of the incident surface of the lens is the eighth angle, the seventh angle 2. The vehicular lamp according to claim 1, wherein ≧ 8th angle is satisfied.
JP2010172956A 2010-07-30 2010-07-30 Vehicle lighting Expired - Fee Related JP5675203B2 (en)

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