JPH083926Y2 - Reflective structure of reflective lighting - Google Patents
Reflective structure of reflective lightingInfo
- Publication number
- JPH083926Y2 JPH083926Y2 JP1989123187U JP12318789U JPH083926Y2 JP H083926 Y2 JPH083926 Y2 JP H083926Y2 JP 1989123187 U JP1989123187 U JP 1989123187U JP 12318789 U JP12318789 U JP 12318789U JP H083926 Y2 JPH083926 Y2 JP H083926Y2
- Authority
- JP
- Japan
- Prior art keywords
- reflector
- reflective
- light source
- front lens
- lamp
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、開口部が横方向へ長い長方形状薄型に形成
して成る灯具ボディの立壁内面に、灯具ボディの前方へ
階段状に連続するＲ状ステップを形成して灯具ボディ立
壁内面に生じる暗部の発生を解消した反射型灯具の反射
構造に関するものである。[Detailed Description of the Invention] [Industrial field of application] In the present invention, an opening is formed in a thin rectangular shape with a laterally long opening, and the inner surface of a standing wall of a lamp body is connected to the front of the lamp body in a stepwise manner. The present invention relates to a reflective structure of a reflection type lighting device in which an R-shaped step is formed to eliminate the occurrence of a dark portion generated on the inner surface of the lamp body standing wall.
自動車等の車両用灯具の外部意匠は、自動車の車体自
体の外形意匠の一部を構成するものであり、近年その高
性能と共に、車幅灯、尾灯又はヘッドランプ等の車両用
灯具について外部に表される前面レンズの意匠面を薄型
化、偏平化することが要請されている。The external design of a vehicle lighting device such as an automobile constitutes a part of the external design of the vehicle body itself of an automobile, and in recent years, along with its high performance, a vehicle lighting device such as a sidelight, a taillight or a headlamp is externally provided. It is required to make the design surface of the front lens shown thinner and flat.
例えば、第３図に示すように、上下に偏平に形成した
灯具ボディ51の後部にリフレクタ52を連続して一体形成
すると共に、該リフレクタ52の内面に回転放物曲面に成
る反射面53を形成し、該反射面53に出射光束を灯具の前
方上下方向へ拡散させるため横方向へ延び、正面視にお
いて略等間隔に視認される多数の拡散ステップ54,54‥
を配列形成し、該リフレクタ52の前方焦点Ｆ位置に点灯
用の光源55を配設し、該光源55の前方を出射光束を左右
方向へ拡散させるための拡散ステップ56,56‥を形成し
て成る前面レンズ57によって覆った反射型の車両用灯具
が提案されている。而して、光源55からの出射光束は、
上記リフレクタ52の反射面53に形成した拡散ステップ5
4,54‥と前面レンズ57に形成した拡散ステップ56,56‥
により灯具前方の左右方向及び上下方向に拡散させ、薄
型化、偏平化した反射型灯具の照射範囲を向上させてい
る。For example, as shown in FIG. 3, a reflector 52 is continuously formed integrally with a rear portion of a lamp body 51 that is vertically flat, and a reflecting surface 53 that is a paraboloid of revolution is formed on an inner surface of the reflector 52. However, a large number of diffusion steps 54, 54 ...
Are arranged, a light source 55 for lighting is disposed at the front focal point F of the reflector 52, and diffusion steps 56, 56, etc. for diffusing the emitted light flux in the left and right direction in front of the light source 55 are formed. A reflection type vehicular lamp covered with a front lens 57 is proposed. Thus, the luminous flux emitted from the light source 55 is
Diffusion step 5 formed on the reflecting surface 53 of the reflector 52
4,54 and diffusion steps 56,56 formed on the front lens 57
The light is diffused in the left-right direction and the up-down direction in front of the lamp to improve the irradiation range of the thin and flat reflective lamp.
しかし、上記構成の反射型灯具では、灯具ボディ51の
立壁、特に下部立壁51a内面には反射面が形成されてい
ないため、斜め上方（Ｅ）からこの前面レンズ57を視認
した場合、この立壁51a内面が反射せず、第４図に示す
ように、前面レンズ57の下部に該立壁51aの無反射部に
よる暗部Ｓが生じて、前面レンズ57からの見栄えが悪く
なるという問題を有していた。However, in the reflection type lighting device having the above-described configuration, since the reflection surface is not formed on the standing wall of the lamp body 51, particularly the inner surface of the lower standing wall 51a, when the front lens 57 is viewed from diagonally above (E), the standing wall 51a The inner surface is not reflected, and as shown in FIG. 4, there is a problem in that a dark portion S due to the non-reflective portion of the standing wall 51a is formed in the lower portion of the front lens 57, and the appearance from the front lens 57 becomes poor. .
本考案は、上記問題に鑑みて創案されたものであり、
反射型灯具の灯具ボディの立壁部に階段状の反射ステッ
プを形成して、前面レンズの前方からの見栄えを改善し
た反射型灯具の反射構造を提供することを目的とするも
のである。The present invention was created in view of the above problems,
An object of the present invention is to provide a reflective structure of a reflection type lamp in which a stepwise reflection step is formed on a standing wall portion of a lamp body of the reflection type lamp to improve the appearance of the front lens from the front.
上記目的を達成するために、本考案に係る反射型灯具
の反射構造は、筒状灯具ボディの後方に連続し、内面に
回転放物曲面を為す反射面を形成したリフレクタと、該
リフレクタの焦点位置に配設したバルブ等の光源と、該
光源の前方を覆う前面レンズを具備して成る反射型灯具
において、上記リフレクタの反射面に横方向へ延び、か
つ正面視において略等間隔に視認される多数の拡散ステ
ップを縦方向に並列形成し、上記灯具ボディの少なくと
も下部立壁内面に、上記光源の焦点位置より前面レンズ
側へ近づくに従い徐々に低く階段状に傾斜させ、かつ上
記リフレクタに形成した拡散ステップと同じ横方向へ延
びる複数のＲ状ステップを並列形成したことを要旨とす
るものである。In order to achieve the above object, a reflective structure of a reflective lamp according to the present invention comprises a reflector that is continuous to the rear of a tubular lamp body and has a reflective surface that forms a paraboloid of revolution on its inner surface, and a focal point of the reflector. In a reflection type lamp including a light source such as a bulb arranged at a position and a front lens covering the front of the light source, the reflection type lamp extends laterally on the reflection surface of the reflector and is visually recognized at substantially equal intervals in a front view. A large number of diffusion steps are formed in parallel in the vertical direction, and are formed on the reflector at least on the inner surface of the lower standing wall of the lamp body so as to be gradually stepped toward the front lens side from the focus position of the light source and stepwise. The gist is that a plurality of R-shaped steps extending in the same lateral direction as the diffusion steps are formed in parallel.
また、上記リフレクタに形成した拡散ステップ及びＲ
状ステップは、等間隔に形成することが望ましく、更
に、上記前面レンズの内面に縦方向に延びる複数の拡散
ステップを横方向に並設するという手段を講じたもので
ある。In addition, the diffusion step and R formed on the reflector.
The steps are preferably formed at equal intervals, and further, a plurality of diffusion steps extending in the vertical direction are arranged in the horizontal direction on the inner surface of the front lens.
上記構成によれば、光源の出射光束が階段状に連続す
るＲ状ステップにより反射されるため、前面レンズの外
側所定方向、特に斜め上方から視認した場合、リフレク
タの反射面に形成した拡散ステップと連続した反射光を
出射し、該部分に暗部を発生させることがなく、反射灯
具の見栄えを改善することができる。According to the above configuration, the light flux emitted from the light source is reflected by the stepped R-shaped steps, so that when viewed from a predetermined direction outside the front lens, particularly obliquely from above, there is a diffusion step formed on the reflecting surface of the reflector. It is possible to improve the appearance of the reflection lamp without emitting a continuous reflected light and generating a dark portion in the portion.
また、Ｒ状ステップとリフレクタに形成した拡散ステ
ップが共に横方向に延びるように形成され、拡散方向が
同一であるため、反射光に違和感がなく、反射型灯具全
体としての統一感が高くなる。Further, since the R-shaped step and the diffusing step formed on the reflector are both formed to extend in the lateral direction and have the same diffusing direction, the reflected light does not feel uncomfortable and the unity of the entire reflective lamp is enhanced.
更に、前面レンズに上記リフレクタの拡散ステップの
形成方向と直交する多数の拡散ステップを形成した場合
には、上記リフレクタの拡散ステップの光束拡散作用と
の間で相乗作用を為し、灯具前方上下方向及び左右方向
への配光制御をすることも可能になる。Further, when a large number of diffusion steps are formed on the front lens in a direction orthogonal to the direction in which the diffusion steps of the reflector are formed, a synergistic effect is produced between the diffusion steps of the reflection steps of the reflector and the vertical direction in the front of the lamp. It is also possible to control the light distribution in the left and right directions.
以下、本考案に係る反射型灯具の反射構造の実施例を
図面に従って説明する。Hereinafter, embodiments of a reflective structure of a reflective lamp according to the present invention will be described with reference to the drawings.
第１図は、本考案に係る反射型灯具を示す縦断面図で
ある。FIG. 1 is a vertical sectional view showing a reflective lamp according to the present invention.
１は、偏平筒状に形成した灯具ボディ２の後方に連続
し、内面に焦点Ｆを有する回転放物曲面３を為す反射面
を形成して成るリフレクタである。このリフレクタ１の
反射面には、凸状のシリンドリカルな横方向に延びる複
数の拡散ステップ4,4‥を縦方向に並列形成してあり、
反射光束を前方上下方向へ拡散する構造を構成したもの
である。また、５は、前記リフレクタ１の軸芯Ｌ位置に
固設したソケット６に取り付けたバルブ等の点灯用の光
源であり、該光源５が前記回転放物曲面３の焦点Ｆに位
置するように設けられている。更に、７は、前記灯具ボ
ディ２の前端部に固設し、光源５を収容した灯室８を構
成するための前面レンズである。この前面レンズ７の内
面には、一般的には縦方向に延びる凹状のシリンドリカ
ルな多数の拡散ステップ9,9‥を横方向に並設し、リフ
レクタ１からの反射光束を左右方向へ拡散して出射する
構造に成っている。Reference numeral 1 is a reflector which is continuous to the rear of the lamp body 2 formed in the shape of a flat cylinder and which is formed with a reflecting surface forming a paraboloid of revolution 3 having a focal point F on the inner surface. On the reflecting surface of the reflector 1, a plurality of diffusing steps 4, 4, ...
This is a structure in which the reflected light flux is diffused in the front up and down direction. Reference numeral 5 denotes a light source for lighting, such as a bulb, which is attached to a socket 6 fixed to the axial center L of the reflector 1, so that the light source 5 is located at the focal point F of the rotation parabolic curved surface 3. It is provided. Further, 7 is a front lens which is fixed to the front end portion of the lamp body 2 and constitutes a lamp chamber 8 in which the light source 5 is housed. On the inner surface of the front lens 7, a large number of concave cylindrical diffusion steps 9, 9 ... Generally extending in the vertical direction are arranged side by side in the horizontal direction to diffuse the reflected light beam from the reflector 1 in the left and right directions. It has a structure for emitting light.
10は、灯具ボディ２の下部立壁部2aに、光源５側から
前面レンズ７側に向けて階段状に下降傾斜させ、それぞ
れ上記リフレクタ１の拡散ステップ4,4…と同じ横方向
へ延びるシリンドリカルなＲ状ステップである。このＲ
状ステップ10は、第２図に示すように、各反射ステップ
11,11‥を光源５の焦点Ｆ位置より前面レンズ７側寄り
に形成し、かつ、それぞれの反射ステップ11,11‥が、
前面レンズ７側へ近づくに従い徐々に低く成るように形
成したものである。またこれらの反射ステップ11,11‥
は、略等間隔a,a‥に構成してあり、上記リフレクタ１
に形成した拡散ステップ4,4‥の間隔b,b‥と対応する関
係に成っている。而して、灯具ボディ２の下面の立壁部
2aにＲ状ステップ10を形成してあるため、光源５からの
出射光束L1は、該階段状に形成したＲ状ステップ10で反
射し、前面レンズ７外へ出射し、灯具ボディ２内におけ
る暗部の発生を防止することができる。Reference numeral 10 denotes a cylindrical lower wall portion 2a of the lamp body 2 which is inclined in a stepwise manner from the light source 5 side toward the front lens 7 side, and extends in the same lateral direction as the diffusion steps 4, 4, ... Of the reflector 1. It is an R-shaped step. This R
As shown in FIG. 2, each step 10 is a reflection step.
11, 11 are formed closer to the front lens 7 side than the position of the focal point F of the light source 5, and each reflection step 11, 11 ,.
It is formed so as to become gradually lower as it approaches the front lens 7. Also these reflection steps 11,11 ...
Are arranged at substantially equal intervals a, a ...
Have a relationship corresponding to the interval b, b ... Of the diffusion steps 4, 4. Thus, the standing wall portion of the lower surface of the lamp body 2
Since the R-shaped step 10 is formed in 2a, the light flux L1 emitted from the light source 5 is reflected by the step-shaped R-shaped step 10 and is emitted to the outside of the front lens 7, and the dark portion inside the lamp body 2 is reflected. Can be prevented.
なお、本実施例では、灯具ボディ２の下部立壁部2aに
階段状配列に成るＲ状ステップ10を形成したものを説明
したが、灯具ボディ２の上面や側面の立壁部分にも階段
状のＲ状ステップ10を形成することができることは勿論
である。In this embodiment, the R-shaped steps 10 formed in a stepwise arrangement are formed on the lower standing wall portion 2a of the lamp body 2, but the upper and side standing walls of the lamp body 2 are also stepped. Of course, the step 10 can be formed.
なお、前面レンズ７側には、必ずしも拡散ステップ9,
9‥を必要としない構造にすることも可能である。In addition, the diffusion step 9,
It is also possible to adopt a structure that does not require 9 ...
本考案に係る反射型灯具の反射構造は、以上のように
構成したから、灯具ボディの立壁内面に階段状配列に成
るＲ状ステップにより光源からの出射光束が反射され、
灯具ボディ内における暗部の発生が防止され、車両用灯
具としての見栄えを改善することができる等の特徴を有
するものであり、本考案実施後の実用的効果は極めて大
きい。Since the reflection structure of the reflection type lighting device according to the present invention is configured as described above, the luminous flux emitted from the light source is reflected by the R-shaped steps arranged in a stepwise arrangement on the inner surface of the standing wall of the lighting device body.
The present invention has features such that a dark portion is prevented from being generated in the lamp body and the appearance as a vehicle lamp can be improved, and the practical effect after implementing the present invention is extremely large.
第１図は本考案に係る反射型灯具の反射構造の縦断面
図、 第２図はＲ状ステップの要部拡大側断面図、 第３図は従来の反射型灯具の反射構造の縦断面図、 第４図は同じく正面図である。 １……リフレクタ、２……灯具ボディ 2a……立壁部、３……回転放物曲面 ４……拡散ステップ、５……光源 ７……前面レンズ、10……Ｒ状ステップ 11……反射ステップFIG. 1 is a longitudinal sectional view of a reflective structure of a reflective lamp according to the present invention, FIG. 2 is an enlarged side sectional view of an essential part of an R-shaped step, and FIG. 3 is a longitudinal sectional view of a reflective structure of a conventional reflective lamp. 4 is a front view of the same. 1 ... Reflector, 2 ... Lamp body 2a ... Standing wall, 3 ... Rotating parabolic curved surface 4 ... Diffusing step, 5 ... Light source 7 ... Front lens, 10 ... R-shaped step 11 ... Reflecting step
Claims (3)
転放物曲面を為す反射面を形成したリフレクタと、該リ
フレクタの焦点位置に配設したバルブ等の光源と、該光
源の前方を覆う前面レンズを具備して成る反射型灯具に
おいて、 上記リフレクタの反射面に横方向へ延び、かつ正面視に
おいて略等間隔に視認される多数の拡散ステップを縦方
向に並列形成し、 上記灯具ボディの少なくとも下部立壁内面に、上記光源
の焦点位置より前面レンズ側へ近づくに従い徐々に低く
階段状に傾斜させ、かつ上記リフレクタに形成した拡散
ステップと同じ横方向へ延びる複数のＲ状ステップを並
列形成したことを特徴とする反射型灯具の反射構造。1. A reflector, which is continuous to the rear of a tubular lamp body and has a reflective surface on the inner surface of which a paraboloid of revolution is formed, a light source such as a bulb disposed at the focal point of the reflector, and a front of the light source. In the reflection type lamp including a front lens for covering the reflector, a plurality of diffusion steps extending in the lateral direction and visually recognized at substantially equal intervals in a front view are formed in parallel in the vertical direction on the reflecting surface of the reflector. A plurality of R-shaped steps, which are gradually inclined toward the front lens side from the focal point position of the light source, are gradually stepped downward and extend in the same lateral direction as the diffusion steps formed on the reflector are arranged in parallel on at least the lower standing wall of the body. A reflective structure for a reflective lamp, which is characterized by being formed.
等間隔に形成すると共に、上記Ｒ状ステップも等間隔に
形成したことを特徴とする請求項１の反射型灯具の反射
構造。2. The reflection structure for a reflective lamp according to claim 1, wherein the diffusion steps formed on the reflector are formed at equal intervals, and the R-shaped steps are also formed at equal intervals.
複数の拡散ステップを横方向に並設したことを特徴とす
る請求項１の反射型灯具の反射構造。3. The reflection structure of a reflection type lamp according to claim 1, wherein a plurality of diffusion steps extending in the vertical direction are arranged side by side on the inner surface of the front lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989123187U JPH083926Y2 (en) | 1989-10-23 | 1989-10-23 | Reflective structure of reflective lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989123187U JPH083926Y2 (en) | 1989-10-23 | 1989-10-23 | Reflective structure of reflective lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362403U JPH0362403U (en) | 1991-06-19 |
| JPH083926Y2 true JPH083926Y2 (en) | 1996-01-31 |
Family
ID=31671177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989123187U Expired - Lifetime JPH083926Y2 (en) | 1989-10-23 | 1989-10-23 | Reflective structure of reflective lighting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083926Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0134810Y2 (en) * | 1985-01-17 | 1989-10-24 | ||
| JPH0226092Y2 (en) * | 1985-11-05 | 1990-07-17 |
-
1989
- 1989-10-23 JP JP1989123187U patent/JPH083926Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362403U (en) | 1991-06-19 |
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