JPH0161201B2 - - Google Patents
Info
- Publication number
- JPH0161201B2 JPH0161201B2 JP57150619A JP15061982A JPH0161201B2 JP H0161201 B2 JPH0161201 B2 JP H0161201B2 JP 57150619 A JP57150619 A JP 57150619A JP 15061982 A JP15061982 A JP 15061982A JP H0161201 B2 JPH0161201 B2 JP H0161201B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- transmitting
- sets
- cover element
- lighting device
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
【発明の詳細な説明】
技術分野
本発明は、ランプが消灯しているときランプに
よつて作られるべき光の色の容易に認知すること
ができないタイプの乗物用灯火装置に関する。TECHNICAL FIELD The present invention relates to a type of vehicle lighting system in which the color of the light to be produced by the lamp is not easily perceptible when the lamp is off.
発明の目的
本発明の目的は、例えば太陽が照つていると
き、実際はランプが消灯していても点灯している
ように見える危険性を減少させることができる垂
物用灯火装置を提供することにある。OBJECT OF THE INVENTION It is an object of the present invention to provide a lighting device for hangings that can reduce the risk of the lamp appearing to be on even though it is actually off, for example when the sun is shining. be.
発明の構成
本発明は上記の目的を達成するために、
光源と、
上記光源の光軸方向前方に上記光軸を横断する
ように配設された光透過性カバー要素と、
上記光透過性カバー要素の内側後方に、該光透
過性カバー要素とほぼ平行に配設された光透過性
中間要素とを有し、
上記光透過性カバー要素の後面を、その垂直断
面形状が連続する鋸歯状を成すように凹凸面で構
成し、該凹凸面は、上記光透過性カバー要素の内
側面に沿つて水平方向に延びる角度の異なる２種
類の平らな表面要素で構成し、該表面要素のうち
の第１の組は、その法線の一端が上記光源方向上
方に延びるように傾斜させ、上記表面要素の第２
の組は上記光軸に対しほぼ平行にし、
上記光透過性中間要素の前面を、上記光透過性
カバー要素の凹凸面と相補形を成す鋸歯状の凹凸
面で構成し、該凹凸面は、上記光透過性カバー要
素の第１及び第２の組にそれぞれ対向した第３及
び第４の組で構成し、
上記第１及び第３の組相互間に、上記光透過性
カバー要素及び光透過性中間要素の屈折率よりも
小さい屈折率の媒介物を挟むとともに、上記第２
及び第４の組相互間に、光吸収手段を配設した乗
物用灯火装置を構成している。Configuration of the Invention In order to achieve the above object, the present invention includes: a light source; a light-transmitting cover element disposed in front of the light source in the optical axis direction so as to cross the optical axis; and the light-transmitting cover A light-transmitting intermediate element disposed substantially parallel to the light-transmitting cover element on the inner rear side of the element, the rear surface of the light-transmitting cover element having a continuous sawtooth shape in vertical cross section. The uneven surface is composed of two types of flat surface elements extending horizontally along the inner surface of the light-transmitting cover element and having different angles; The first set is inclined such that one end of its normal extends upward in the direction of the light source, and the second set of surface elements is
are substantially parallel to the optical axis, and the front surface of the light-transmitting intermediate element is configured with a sawtooth-like uneven surface complementary to the uneven surface of the light-transmitting cover element, and the uneven surface is The light-transmitting cover element and the light-transmitting cover element are arranged between the first and third sets, and the light-transmitting cover element and the light-transmitting sandwiching a medium having a refractive index smaller than that of the intermediate element, and
A vehicle lighting device is constructed in which a light absorbing means is disposed between the second set and the fourth set.
好ましくは、平行化された光源の光が光透過性
中間要素に直接照射するように光源を配設する。
この目的のため、光源にはフレネル系、放物面状
の反射器またはその両者を含む。 Preferably, the light source is arranged such that the collimated light from the light source directly irradiates the light-transmissive intermediate element.
For this purpose, the light source includes a Fresnel system, a parabolic reflector, or both.
作用および効果
本灯火装置には、光透過性カバー要素及び光透
過性中間要素に、法線の一端が光源方向上方に延
びるように傾斜させた第１及び第３の組の表面要
素を形成しているので、水平方向に進む光線は第
１及び第３の組の表面要素を横切つて伝達される
が、予め設定された入射角より大きい入射角で灯
火装置の外側から該装置に向かつて斜め下方に照
射される光線、又は同様に灯火装置の内側から外
側に向かつて斜め上方に照射される光線は、第１
及び第３の表面要素によつて下方及び上方に全反
射され、その後第２及び第４の表面要素の上に直
接に照射され、ここで光吸収手段によつて吸収さ
れる。この結果、もしも光透過性中間要素が着色
された材料で作られるか、光透過性中間要素と光
源との間に分離色フイルタが配設されている場
合、カバー要素又は中間要素に全反射しない角度
で入射する光のみが灯火装置の外側で着色光とし
て認知され得ることになる。Function and Effect The lighting device includes a light-transmitting cover element and a light-transmitting intermediate element having first and third sets of surface elements that are inclined so that one end of the normal line extends upward in the light source direction. , so that a horizontally traveling light ray is transmitted across the first and third sets of surface elements, but not directed toward the lighting device from outside the lighting device at an angle of incidence greater than the preset angle of incidence. A light beam that is emitted diagonally downward, or a light beam that is emitted diagonally upward from the inside of the lighting device to the outside, is the first
and is totally reflected downwardly and upwardly by the third surface element and then directly onto the second and fourth surface elements where it is absorbed by the light absorbing means. As a result, if the light-transmissive intermediate element is made of a colored material or if a separating color filter is arranged between the light-transmissive intermediate element and the light source, there is no total reflection on the cover element or the intermediate element. Only light incident at an angle can be perceived as colored light outside the lighting device.
この発明の一つの形態においては、第２及び第
４の組の表面要素間に配設される例えば金属又は
プラスチツク製の不透明な挿入部材をはじめとす
る種々の挿入部材は、カバー要素と中間要素との
間に所定の空気の〓間が維持されるようにこれら
両者を離間させる間〓保持材として機能する。中
間要素の内面にはレンズが形成され、光源からの
光がこのレンズによつて挿入部材から離れるよう
に偏向され、同時に所定の開度で発散する光を生
じさせる。また、光の分離発散要素がカバー部材
の外側に配設されるか、又はカバー部材自体を発
散器として機能するように設計しても良い。 In one form of the invention, various inserts, such as opaque inserts of metal or plastic, disposed between the second and fourth sets of surface elements are arranged between the cover element and the intermediate element. It functions as a holding material to keep these two apart so that a predetermined air gap is maintained between them. A lens is formed on the inner surface of the intermediate element, by which the light from the light source is deflected away from the insert, and at the same time produces a divergent light with a predetermined opening. The light separating and diverging element may also be arranged on the outside of the cover member, or the cover member itself may be designed to function as a diffuser.
実施例
以下、本発明を添付図面を参照して詳細に説明
する。EXAMPLES Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
図示する如く、乗物用信号灯として図示された
灯火装置は、放物面状の反射器１０を備え、反射
器１０の焦点に光源としてのフイラメント１４が
位置するように電球１２が配設される。合成レン
ズ体１６は反射器１０を覆つて配設される。レン
ズ体１６は、電球１２が消灯しているときに灯火
装置が呈することになつている外観に従つて着色
された光透過性カバー要素１８と、予め決められ
た機能に適した色、例えば方向指示灯は琥珀色、
ブレーキ灯は赤色を外部成分と結合して灯火装置
が放射するように着色された光透過性中間要素２
０を備えている。どのような環境においてもカバ
ー要素１８を中間灰色にするのが便利であり、こ
の場合、中間要素２０は放射される光に要求され
る実際の色にされる。 As shown in the figure, the lighting device illustrated as a vehicle signal light includes a parabolic reflector 10, and a light bulb 12 is disposed such that a filament 14 as a light source is located at the focus of the reflector 10. A composite lens body 16 is disposed to cover the reflector 10. The lens body 16 has a light-transmissive cover element 18 colored according to the appearance that the lighting device is to have when the bulb 12 is off, and a color suitable for a predetermined function, e.g. The indicator light is amber,
The brake light is a light-transmissive intermediate element 2 colored so that the lighting device emits red light in combination with an external component.
It is equipped with 0. In all circumstances it is convenient to have the cover element 18 in a medium gray color, in which case the intermediate element 20 is made in the actual color required for the emitted light.
レンズ体１６の２つの要素１８と２０との間の
境界は一般に鋸歯状の凹凸面からなり、カバー要
素１８の内面は交互の水平面（第２の組の表面要
素）２２と、下方かつ内側に傾斜しその法線の一
端が上記電球１２方向上方に延びる面（第１の組
の表面要素）２４を有し、中間要素２０の外面
は、カバー要素１８の前記部分２２，２４と相補
的な形状を成す水平面（第４の組の表面要素）２
６および傾斜した面（第３の組の表面要素）２８
を有する。２つの要素１８，２０の対向する面
は、それぞれ水平方向を向いた三角形のプリズム
の列を成し、カバー要素１８のプリズムは中間要
素２０のプリズムに対して逆を向いており、２つ
の要素１８，２０は傾斜した面（第１及び第３の
組の表面要素）２４と２８の間に狭い平行な間〓
を有して対向している。面（第２及び第４の組の
表面要素）２２と２６の間の不透明な隔壁要素
（光吸収手段としての挿入部材）３０は、それら
の面を光が通過するのを妨げると共に、面２４と
２８との間に所定の空気の〓間を保持するスペー
サとして機能する。 The interface between the two elements 18 and 20 of the lens body 16 consists of a generally serrated surface, and the inner surface of the cover element 18 has alternating horizontal surfaces (second set of surface elements) 22 downwardly and inwardly. The outer surface of the intermediate element 20 is complementary to the portions 22, 24 of the cover element 18, having a surface (first set of surface elements) 24 which is inclined and whose normal end extends upwardly in the direction of the bulb 12. Horizontal plane forming the shape (fourth set of surface elements) 2
6 and inclined surfaces (third set of surface elements) 28
has. The opposing faces of the two elements 18, 20 each form a row of horizontally oriented triangular prisms, the prisms of the cover element 18 being oriented oppositely to the prisms of the intermediate element 20; 18, 20 are narrow parallel gaps between the inclined surfaces (first and third sets of surface elements) 24 and 28.
are facing each other. An opaque barrier element (insert member as a light absorbing means) 30 between surfaces (second and fourth sets of surface elements) 22 and 26 prevents light from passing through those surfaces and It functions as a spacer to maintain a predetermined air gap between and 28.
傾斜した面２４の傾斜角度は水平方向に対して
予め設定された値（曲型的には30゜程度）より大
きい角度で、カバー要素１８に入射した光線３２
のような光線は、カバー要素１８の傾斜した面２
４で内側に全反射され、その結果、隣接する不透
明な隔壁要素３０に照射されてそこに吸収される
か、レンズ体１６の前面を通つて外側に戻される
光線とされる。これにより、このような光線は着
色された中間要素２０に到達せず、灯火装置の外
観が中間要素２０の色によつて影響されない。 The angle of inclination of the inclined surface 24 is greater than a preset value (approximately 30 degrees in terms of curved shape) with respect to the horizontal direction, and the light rays 32 incident on the cover element 18 are
A ray of light such as
4 and is totally reflected inward, resulting in a ray that is either irradiated to and absorbed by the adjacent opaque partition element 30 or is returned to the outside through the front surface of the lens body 16. Thereby, such light rays do not reach the colored intermediate element 20 and the appearance of the lighting device is not influenced by the color of the intermediate element 20.
傾斜した面２４において内側方向に全反射しな
いように十分に水平に近い角度で外部から灯火装
置に入射した光は反射器１０に照射され、光線３
４のように平行化されずに上方に向いた光を生ず
る。図示するように、この光源３４は中間要素２
０の傾斜した面２８で内側上方に全反射され、隔
壁要素３０の１つに直接照射されるか灯火装置内
に反射される。 Light entering the lighting device from the outside at an angle sufficiently close to horizontal so as not to be totally reflected inward on the inclined surface 24 is irradiated onto the reflector 10, and the light beam 3
4, it produces light that is directed upward without being parallelized. As shown, this light source 34
It is totally reflected inwardly and upwardly at the inclined surface 28 of 0 and either directly onto one of the partition elements 30 or reflected into the lighting device.
他方、放物面状の反射器１０によつて電球１２
から作られるような灯火装置の内側からの平行化
光、例えば光線３６を含む光線は、中間要素及び
カバー要素２０，１８の間の空気の〓間を横切つ
て自由に通過することができ、それらの光線は中
間要素２０によつて付与された色を持つて灯火装
置の前面から放射される。 On the other hand, the light bulb 12 is illuminated by the parabolic reflector 10.
Collimated light from inside the lighting device, such as light rays 36, can pass freely across the air gap between the intermediate and cover elements 20, 18; The light rays are emitted from the front side of the lighting device with the color imparted by the intermediate element 20.
第２図において中間要素２０の内面は、その面
上に形成されたレンズの列を有するように描かれ
ている。これらのレンズは灯火装置から放射され
る平行化光に所定の開度を付与するように機能
し、また平行化光を隔壁要素３０の縁から離れる
ように偏向させる。このレンズはカバー要素８の
外側に形成してもよいし、所定の発散をカバー要
素１８の外側の分離発散要素によつて得るように
してもよく、隔壁３０の縁によつて光の進行が妨
げられる領域は小さくなり、これによる光の損失
は許容範囲内のものとなる。 In FIG. 2, the inner surface of intermediate element 20 is depicted as having an array of lenses formed on that surface. These lenses function to impart a predetermined degree of aperture to the collimated light emitted from the lighting device, and also deflect the collimated light away from the edge of the partition element 30. This lens may be formed on the outside of the cover element 8 or the predetermined divergence may be obtained by a separate diverging element on the outside of the cover element 18, with the edges of the partition wall 30 controlling the progress of the light. The obstructed area is smaller and the resulting light loss is acceptable.
第１図は本発明の乗物用灯火装置の概略断面
図、第２図は第１図に示した装置のレンズ体の拡
大概略断面図である。
１０……反射器、１２……電球（光源）、１４
……フイラメント、１６……レンズ体、１８……
光透過性カバー要素、２０……光透過性中間要
素、２２，２６……水平面（表面要素の第２およ
び第４の組）、２４，２８……傾斜面（表面要素
の第１及び第３の組）、３０……隔壁（光吸収手
段）。
FIG. 1 is a schematic cross-sectional view of a vehicle lighting device of the present invention, and FIG. 2 is an enlarged schematic cross-sectional view of a lens body of the device shown in FIG. 10...Reflector, 12...Light bulb (light source), 14
...Filament, 16...Lens body, 18...
Light-transparent cover element, 20... Light-transparent intermediate element, 22, 26... Horizontal surface (second and fourth set of surface elements), 24, 28... Slanted surface (first and third set of surface elements). ), 30... partition wall (light absorption means).
Claims (1)
ように配設された光透過性カバー要素と、 上記光透過性カバー要素の内側後方に、該光透
過性カバー要素とほぼ平行に配設された光透過性
中間要素とを有し、 上記光透過性カバー要素の後面を、その垂直断
面形状が連続する鋸歯状を成すように凹凸面で構
成し、該凹凸面は、上記光透過性カバー要素の内
側面に沿つて水平方向に延びる角度の異なる２種
類の平らな表面要素で構成し、該表面要素のうち
の第１の組は、その法線の一端が上記光源方向上
方に延びるように傾斜させ、上記表面要素の第２
の組は上記光軸に対しほぼ平行にし、 上記光透過性中間要素の前面を、上記光透過性
カバー要素の凹凸面と相補形を成す鋸歯状の凹凸
面で構成し、該凹凸面は、上記光透過性カバー要
素の第１及び第２の組にそれぞれ対向した第３及
び第４の組で構成し、上記第４の組の各表面要素
が上記第２の組の各表面要素と対面し、上記第３
の組の各表面要素が上記第１の組の各表面要素と
平行状態で対面するようにし、 上記第１及び第３の組相互間に、上記光透過性
カバー要素及び光透過性中間要素の屈折率よりも
小さい屈折率の媒介物を挟むとともに、上記第２
及び第４の組相互間に、光吸収手段を配設した乗
物用灯火装置。 ２ 上記表面要素の第２及び第４の組に照射する
光を吸収する上記光吸収手段が、上記第２の組と
第４の組との間にそれぞれ配設された硬く不透明
な挿入部材を有し、上記挿入部材によつて上記第
１の組と第３の組との間に所定の間〓を維持する
ようにした特許請求の範囲第１項記載の乗物用灯
火装置。 ３ 上記光源からの光が平行化光とされて上記光
透過性中間要素に直接照射するようにされている
特許請求の範囲第１項又は第２項記載の乗物用灯
火装置。[Scope of Claims] 1: a light source; a light-transmitting cover element disposed in front of the light source in the direction of the optical axis so as to cross the optical axis; The light-transmitting intermediate element is arranged substantially parallel to the transparent cover element, and the rear surface of the light-transmitting cover element is configured with an uneven surface so that its vertical cross-sectional shape forms a continuous sawtooth shape. , the textured surface comprises two types of flat surface elements extending horizontally along the inner surface of the light-transmissive cover element and having different angles; The second end of the surface element is inclined so that one end of the line extends upward in the direction of the light source.
are substantially parallel to the optical axis, and the front surface of the light-transmitting intermediate element is configured with a sawtooth-like uneven surface complementary to the uneven surface of the light-transmitting cover element, and the uneven surface is a third and a fourth set of light-transmitting cover elements facing the first and second sets, respectively, each surface element of the fourth set facing each surface element of the second set; and the third above
each surface element of the set faces each surface element of the first set in a parallel state, and between the first and third sets, the light-transmitting cover element and the light-transmitting intermediate element are disposed between the first and third sets. A medium having a refractive index smaller than the refractive index is sandwiched, and the second
and a vehicle lighting device in which a light absorbing means is disposed between the fourth set. 2. The light absorbing means for absorbing light impinging on the second and fourth sets of surface elements comprises a rigid opaque insert disposed between the second and fourth sets, respectively. 2. A lighting device for a vehicle according to claim 1, wherein said insertion member maintains a predetermined distance between said first set and third set. 3. The vehicle lighting device according to claim 1 or 2, wherein the light from the light source is collimated and irradiated directly onto the light-transmitting intermediate element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000418993A CA1195556A (en) | 1982-01-07 | 1983-01-06 | Resin coated sand for shell-molding process |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8126420 | 1981-08-29 | ||
| GB8126420 | 1981-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5853101A JPS5853101A (en) | 1983-03-29 |
| JPH0161201B2 true JPH0161201B2 (en) | 1989-12-27 |
Family
ID=10524240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57150619A Granted JPS5853101A (en) | 1981-08-29 | 1982-08-30 | Lamp apparatus for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853101A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6717721B2 (en) * | 2015-12-04 | 2020-07-01 | 株式会社小糸製作所 | Vehicle marker light using a planar light emitter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5493880A (en) * | 1977-09-29 | 1979-07-25 | Rau Swf Autozubehoer | Signal lamp |
| JPS54124695A (en) * | 1978-03-20 | 1979-09-27 | Stanley Electric Co Ltd | Automotive lamp |
| JPS54156379A (en) * | 1978-05-30 | 1979-12-10 | Lucas Industries Ltd | Lamp device |
| JPS56112003A (en) * | 1980-02-12 | 1981-09-04 | Ichikoh Industries Ltd | Lamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5575901U (en) * | 1978-11-20 | 1980-05-26 |
-
1982
- 1982-08-30 JP JP57150619A patent/JPS5853101A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5493880A (en) * | 1977-09-29 | 1979-07-25 | Rau Swf Autozubehoer | Signal lamp |
| JPS54124695A (en) * | 1978-03-20 | 1979-09-27 | Stanley Electric Co Ltd | Automotive lamp |
| JPS54156379A (en) * | 1978-05-30 | 1979-12-10 | Lucas Industries Ltd | Lamp device |
| JPS56112003A (en) * | 1980-02-12 | 1981-09-04 | Ichikoh Industries Ltd | Lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5853101A (en) | 1983-03-29 |
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