JPH0638321Y2 - Variable range lighting device - Google Patents
Variable range lighting deviceInfo
- Publication number
- JPH0638321Y2 JPH0638321Y2 JP1988148468U JP14846888U JPH0638321Y2 JP H0638321 Y2 JPH0638321 Y2 JP H0638321Y2 JP 1988148468 U JP1988148468 U JP 1988148468U JP 14846888 U JP14846888 U JP 14846888U JP H0638321 Y2 JPH0638321 Y2 JP H0638321Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- condenser lens
- reflector
- optical axis
- fisheye
- 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
Landscapes
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、照明範囲を連続的或いは段階的に調節するこ
とができる光学系の光軸方向の長さを短くした灯具に係
り、特に自動車の前照灯や室内灯若しくはバックアップ
ランプ等の車両用照明装置に実施可能な範囲可変型照明
装置に関するものある。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lamp having an optical system whose length in the optical axis direction is shortened, which is capable of adjusting an illumination range continuously or stepwise, and particularly to an automobile. The present invention relates to a variable range lighting device that can be applied to a vehicle lighting device such as a headlight, an interior light, or a backup lamp.
従来より一般に提案されている灯具として、光軸上にお
ける放物鏡面の焦点に光源を設けるか、又は第一及び第
二の焦点を有する楕円鏡面と該楕円鏡面の第一の焦点に
光源を設けると共に、第二の焦点にこれを共有するコリ
メーターレンズを設けることによって光束を平行化し、
更に該コリメーターレンズの前方に設けた集光レンズ系
と拡散レンズ系からなるレンズ系を透過して光源からの
光を照射し、集光レンズ系と拡散レンズ系の間隔を変更
調節して、例えばスポット光から成る遠方放射パターン
と拡散光から成る近傍照射パターンの調節を可能とした
構造のものが使用されている。As a lamp generally proposed in the past, a light source is provided at the focal point of a parabolic mirror surface on the optical axis, or an elliptic mirror surface having first and second focal points and a light source is provided at the first focal point of the elliptic mirror surface. At the same time, by providing a collimator lens that shares this at the second focal point, the light flux is collimated,
Furthermore, the light from the light source is transmitted through a lens system composed of a condenser lens system and a diffusion lens system provided in front of the collimator lens, and the distance between the condenser lens system and the diffusion lens system is changed and adjusted, For example, there is used a structure capable of adjusting a far radiation pattern composed of spot light and a near irradiation pattern composed of diffused light.
しかし、上記従来の灯具によれば、一般に遠方照射パタ
ーン及び近傍照射パターンの調節を行う集光レンズ系と
拡散レンズ系のレンズ径が大きく成ると、レンズ系を含
む装置の光軸方向の長さが大きくなって、例えば車両用
室内灯のように設置深さに制限があるような場所では使
用することができないものであった。However, according to the above-described conventional lamp, generally, when the lens diameters of the condenser lens system and the diffusion lens system for adjusting the far-field irradiation pattern and the near-field irradiation pattern are increased, the length in the optical axis direction of the device including the lens system is increased. However, it cannot be used in places where the installation depth is limited, such as interior lights for vehicles.
本考案は、上記問題に鑑みて創案されたものであり、ス
ポット光又は拡散光の調節と照射方向の変更を連続的に
行うことができる範囲可変型照明装置を提供することを
目的とするものである。The present invention has been made in view of the above problems, and an object thereof is to provide a range variable illuminating device capable of continuously adjusting spot light or diffused light and changing the irradiation direction. Is.
上記目的を達成するために、本考案に係る範囲可変型照
明装置は、灯具ボディの後端に設けたリフレクタの放物
反射鏡面の略焦点位置に光源を設け、前記リフレクタと
灯具の前面位置には、各焦点距離がそれぞれ等しい複数
個のレンズステップを適宜ピッチで配列した集光レンズ
を配置し、前記集光レンズの前方には、各焦点位置がそ
れぞれ等しくかつ前記集光レンズと等ピッチの複数個の
レンズステップを配列した拡散レンズを配置し、前記集
光レンズをリフレクタの光軸方向又は／及び該光軸と平
行方向に対して摺動自在に担持し、該集光レンズと拡散
レンズの相対位置を変位するように構成したことを要旨
するものである。In order to achieve the above-mentioned object, the variable range lighting device according to the present invention has a light source provided at a substantially focal position of a parabolic reflector surface of a reflector provided at a rear end of a lamp body, and is provided at a front position of the reflector and the lamp. Is a condenser lens in which a plurality of lens steps each having the same focal length are arranged at an appropriate pitch. In front of the condenser lens, the focal positions are equal and the condenser lens has the same pitch. A diffusion lens in which a plurality of lens steps are arranged is arranged, and the condenser lens is slidably carried in the optical axis direction of the reflector and / or in the direction parallel to the optical axis. The gist is that it is configured to displace the relative position of.
また、上記リフレクタに代えて、第一と第二の焦点を有
し第一の焦点に光源を配置した楕円反射鏡と、該楕円反
射鏡の第二の焦点とその焦点を略一致するように設けた
コリメーターレンズを用いることができる。Further, instead of the reflector, an elliptical reflecting mirror having first and second focal points and having a light source arranged at the first focal point, and a second focal point of the elliptic reflecting mirror and its focal point are substantially aligned with each other. The provided collimator lens can be used.
而して、本考案に係る範囲可変型照明装置によれば、焦
点に光源を設置した放物面鏡、或いは第一と第二の焦点
を有し第一の焦点に光源を配置した楕円反射鏡と、該楕
円反射鏡の第二の焦点とその焦点を略一致するように設
けたコリメーターレンズとからなる光束平行化手段によ
って平行光束に屈折偏向された照射光が、集光レンズ及
び拡散レンズの各レンズステップを透過して灯具の前方
に照射される。このとき集光レンズと拡散レンズの各レ
ンズステップは等ピッチに構成してあるため、照射光は
集光レンズと拡散レンズのレンズステップの相対距離に
よりスポット光束或いは拡散光束に変更することができ
る。また、集光レンズ又は拡散レンズの光軸を反射鏡の
光軸から側方、即ち上下又は左右方向に変位させること
により、照射方向を上記光軸に対して傾けることが可能
である。更に光束平行化手段にコリメーターレンズを使
用したものでは、該コリメーターレンズの光軸を反射鏡
の光軸に対して上下又は左右方向に変位することによっ
ても、照射方向を傾けることができる。Thus, according to the variable range lighting device of the present invention, a parabolic mirror having a light source installed at the focal point, or an elliptical reflection having a first and a second focal point and the light source disposed at the first focal point. Irradiation light refracted and deflected into a parallel light beam by a light beam collimating means including a mirror and a second focal point of the elliptical reflecting mirror and a collimator lens provided so that the focal point substantially coincides with each other. The light passes through each lens step of the lens and is irradiated in front of the lamp. At this time, since the lens steps of the condensing lens and the diffusing lens are configured with an equal pitch, the irradiation light can be changed to a spot light beam or a diffusing light beam depending on the relative distance between the lens steps of the condensing lens and the diffusing lens. Further, by displacing the optical axis of the condenser lens or the diffusion lens laterally from the optical axis of the reflecting mirror, that is, in the vertical or horizontal direction, the irradiation direction can be tilted with respect to the optical axis. Further, in the case where a collimator lens is used for the light beam collimating means, the irradiation direction can be tilted by displacing the optical axis of the collimator lens vertically or horizontally with respect to the optical axis of the reflecting mirror.
而して、集光レンズ及び拡散レンズを魚眼レンズ又はシ
リンドリカルレンズ等のレンズステップの並列集合によ
って構成することにより、レンズ径に対して焦点距離を
短くすることができるため、灯具装置の奥行きを短くす
ることが可能と成る。Thus, by configuring the condenser lens and the diffusion lens by a parallel set of lens steps such as a fisheye lens or a cylindrical lens, the focal length can be shortened with respect to the lens diameter, and thus the depth of the lamp device is shortened. It becomes possible.
以下、本考案に係る範囲可変形照明装置の実施例を図面
に従って説明する。Embodiments of the range variable lighting device according to the present invention will be described below with reference to the drawings.
第１図及至第５図は、光束平行化手段として放物面反射
鏡面を有するリフレクタを使用した第一の実施例を示す
ものである。1 to 5 show a first embodiment in which a reflector having a parabolic reflecting mirror surface is used as a light beam collimating means.
灯具ボディ１の後端に設けたリフレクタ２の放物反射鏡
面３の焦点F1にはバルブ等の点灯用の光源４が設けられ
ており、該リフレクタ２と灯具前面に固設した拡散レン
ズ５間にレンズ位置駆動手段６を介して集光レンズ７を
設けて成る。該レンズ位置駆動手段６は、集光レンズ７
をリフレクタ２の光軸ｆ方向に摺動する光束絞り変更機
構８と該光軸ｆと平行に摺動する光束方向変更機構９と
から構成してあり、前記灯具ボディ１に対して摺動自在
に内挿した内筒10に横架設したガイド枠11に該集光レン
ズ７を摺動自在に担持すると共に、内筒10の一端を灯具
ボディ１に軸設した絞り調節螺子12と螺合し、また集光
レンズ７の一端を内筒10に螺設した方向調節螺子13と螺
合してある。At the focal point F1 of the parabolic reflection mirror surface 3 of the reflector 2 provided at the rear end of the lamp body 1, there is provided a light source 4 for lighting such as a bulb, and between the reflector 2 and the diffuser lens 5 fixed on the front surface of the lamp. Further, a condenser lens 7 is provided via the lens position driving means 6. The lens position driving means 6 includes a condenser lens 7
Is composed of a light beam aperture changing mechanism 8 that slides in the optical axis f direction of the reflector 2 and a light beam direction changing mechanism 9 that slides in parallel with the optical axis f, and is slidable with respect to the lamp body 1. The condensing lens 7 is slidably carried on a guide frame 11 which is horizontally installed on an inner cylinder 10 inserted in the inner cylinder 10, and one end of the inner cylinder 10 is screwed with a diaphragm adjusting screw 12 axially arranged on the lamp body 1. Further, one end of the condenser lens 7 is screwed with a direction adjusting screw 13 screwed on the inner cylinder 10.
本実施例において、上記集光レンズ７は、第３図に示す
ように、縦横等ピッチに区画配列したそれぞれ焦点F2を
有する魚眼凸レンズ14,14‥から成っており、また拡散
レンズ５は上記集光レンズ７と同ピッチに配列した焦点
F3を有する魚眼凹レンズ15,15‥から成っている。In this embodiment, as shown in FIG. 3, the condensing lens 7 is composed of fish-eye convex lenses 14, 14 ... Each having a focal point F2, which are arranged at equal pitches in the vertical and horizontal directions. Focuses arranged at the same pitch as the condenser lens 7
Consists of fish-eye concave lenses 15,15 with F3.
上記構成の範囲可変型照明装置は、光源４を点灯すると
リフレクタ２の放物反射鏡面３によって平行光束に成っ
た前方照射光が集光レンズ７の魚眼凸レンズ14と拡散レ
ンズ５の魚眼凹レンズ15を経て前方に照射される。した
がって、第２図のように集光レンズ７のの魚眼凸レンズ
14と拡散レンズ５の魚眼凹レンズ15の光軸を一致させた
状態で、かつ魚眼凸レンズ14の焦点F2位置と魚眼凹レン
ズ15の焦点F3位置が重なるように、絞り調節螺子12と方
向調節螺子13を回動調節した場合は、集光レンズ７によ
って焦点F2（F3）に向かって集光した光束が拡散レンズ
５によって再び平行化され、拡散しないスポット光とな
る。In the variable range illumination device having the above-mentioned configuration, when the light source 4 is turned on, the forward irradiation light formed into a parallel light flux by the parabolic reflecting mirror surface 3 of the reflector 2 is a fisheye convex lens 14 of the condenser lens 7 and a fisheye concave lens of the diffusion lens 5. It is irradiated forward through 15. Therefore, as shown in FIG. 2, the fisheye convex lens of the condenser lens 7
14 and the fisheye concave lens 15 of the diffusion lens 5 are aligned with each other, and the focus adjusting screw 12 and the direction are adjusted so that the focus F2 position of the fisheye convex lens 14 and the focus F3 position of the fisheye concave lens 15 overlap. When the screw 13 is rotationally adjusted, the light flux condensed toward the focal point F2 (F3) by the condenser lens 7 is collimated again by the diffusion lens 5 to become non-diffused spot light.
また、第４図に示すように、集光レンズ７の魚眼凸レン
ズ14と拡散レンズ５の魚眼凹レンズ15の光軸を一致させ
た状態で、かつ魚眼凸レンズ14の焦点F2位置と魚眼凹レ
ンズ15の焦点F3位置が重ならないように、絞り調節螺子
12と方向調節螺子13を回動調節した場合は、集光レンズ
７によって焦点F2に向かって集光した光束が焦点F3位置
を異にする拡散レンズ５によって拡散された光束とな
る。Further, as shown in FIG. 4, the optical axes of the fisheye convex lens 14 of the condenser lens 7 and the fisheye concave lens 15 of the diffusion lens 5 are aligned with each other, and the focus F2 position of the fisheye convex lens 14 and the fisheye Aperture adjustment screw so that the focal point F3 position of concave lens 15 does not overlap
When the 12 and the direction adjusting screw 13 are rotationally adjusted, the light flux condensed toward the focus F2 by the condenser lens 7 becomes the light flux diffused by the diffusion lens 5 having different focus F3 positions.
更に、第５図は集光レンズ７の魚眼凸レンズ14と拡散レ
ンズ５の魚眼凹レンズ15の光軸をずらした状態で、かつ
魚眼凸レンズ14の焦点F2位置と魚眼凹レンズ15の焦点F3
位置が重なるように、絞り調節螺子12と方向調節螺子13
を回動調節した場合を示すもので、この場合は、拡散レ
ンズ５の各魚眼凹レンズ15に入射する集光レンズ７の魚
眼凸レンズ14からの光束がずれた光軸を持っているた
め、各魚眼凹レンズ15の光束はずれの方向に偏向する。Further, FIG. 5 shows a state in which the optical axes of the fisheye convex lens 14 of the condenser lens 7 and the fisheye concave lens 15 of the diffusion lens 5 are shifted, and the focus F2 position of the fisheye convex lens 14 and the focus F3 of the fisheye concave lens 15 are set.
Aperture adjustment screw 12 and direction adjustment screw 13 so that the positions overlap.
In this case, since the light flux from the fish-eye convex lens 14 of the condenser lens 7 which is incident on each fish-eye concave lens 15 of the diffusion lens 5 has an optical axis deviated, The light flux of each fish-eye concave lens 15 is deflected in the deviation direction.
尚、上記構成において集光レンズ７の魚眼凸レンズ14と
拡散レンズ５の魚眼凹レンズ15をそれぞれ同ピッチのシ
リンドリカルレンズにより構成し、また該シリンドリカ
ルレンズを同心円状に形成しても同様に照射光の絞り調
節及び偏向調節を行うことができる。Even if the fish-eye convex lens 14 of the condensing lens 7 and the fish-eye concave lens 15 of the diffusing lens 5 are each formed by a cylindrical lens having the same pitch in the above-mentioned configuration, and the cylindrical lens is formed concentrically, the irradiation light is also the same. The diaphragm adjustment and the deflection adjustment can be performed.
次に第６図は、光束平行化手段として楕円反射鏡面を有
するリフレクタとコリメーターレンズを使用した第二の
実施例を示すものである。Next, FIG. 6 shows a second embodiment in which a reflector having an elliptical reflecting mirror surface and a collimator lens are used as the light beam collimating means.
リフレクタ21は、焦点F1及びF2とする回転楕円体曲面に
成ると共に、該内面を縦断面形反射鏡面22に加工してあ
る。バルブ等の点灯用の光源４は上記リフレクタ21の第
一の焦点F1に位置するように取り付けられ、焦点F3を有
する透光性素材の軸対称コリメーターレンズ24を、その
焦点F3が上記リフレクタ21の第二の焦点F2と略一致する
位置に設けて成る。該コリメーターレンズ24の前方に
は、該コリメーターレンズ24と前面に固設した拡散レン
ズ５間にレンズ位置駆動手段６（レンズ位置駆動手段６
の詳細は第一の実施例の説明を参照）を介して集光レン
ズ７を設けたものであり、拡散レンズ５と集光レンズ７
の光軸ｆを一致させた状態で両者の焦点F3,F4の相対位
置を調節し、また相互に光軸ｆをずらすことができるよ
うに構成してある。The reflector 21 is formed into a spheroidal curved surface having the focal points F1 and F2, and the inner surface thereof is processed into a reflecting mirror surface 22 having a vertical cross section. A light source 4 for lighting a bulb or the like is attached so as to be located at the first focus F1 of the reflector 21, and an axisymmetric collimator lens 24 of a translucent material having a focus F3 is provided, the focus F3 of which is the reflector 21. It is provided at a position substantially coincident with the second focus F2 of. In front of the collimator lens 24, a lens position driving means 6 (lens position driving means 6 is provided between the collimator lens 24 and the diffusion lens 5 fixed on the front surface.
(See the description of the first embodiment for details of the above), the condenser lens 7 is provided, and the diffusion lens 5 and the condenser lens 7
The optical axes f of the two are adjusted so that the relative positions of their focal points F3 and F4 can be adjusted, and the optical axes f can be mutually shifted.
尚、上記第二の実施例の構成ではレンズ位置駆動手段６
の光束方向変更機構９をコリメーターレンズ24の首振り
駆動により行う構造にすることもできる。Incidentally, in the configuration of the second embodiment, the lens position driving means 6
The luminous flux direction changing mechanism 9 may be configured to be driven by swinging the collimator lens 24.
更に、前記実施例では集光レンズ７を魚眼凸レンズ14
群、拡散レンズ５を魚眼凹レンズ15群によって構成した
ものを示したが、集光レンズ７及び拡散レンズ５を魚眼
凸レンズ14群によって構成しても同様の照射光を絞り調
節及び偏向調節を行うことができる。また、集光レンズ
又は拡散レンズをシリンドリカルレンズで構成した場合
でも同様である。Further, in the above embodiment, the condenser lens 7 is replaced by the fisheye convex lens 14
Although the group and the diffusing lens 5 are configured by the fisheye concave lens 15 group, the same irradiation light can be adjusted by adjusting the aperture and the deflection even if the condensing lens 7 and the diffusing lens 5 are configured by the fisheye convex lens 14 group. It can be carried out. The same applies when the condensing lens or the diffusing lens is a cylindrical lens.
本考案に係る範囲可変型照明装置は、以上のように集光
レンズ及び拡散レンズを魚眼レンズ又はシリンドリカル
レンズ等のレンズステップの並列集合によって構成した
から、レンズ径に対して焦点距離を短くすることができ
るため、灯具装置の奥行きを短くすることができ、特に
車両室内等の設置場所が限定される位置においても実施
可能となり、また車両用前照灯として実施した場合に
は、照射パターンを近傍から遠方の照射範囲に切り替え
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。In the variable range lighting device according to the present invention, since the condensing lens and the diffusing lens are configured by a parallel set of lens steps such as a fisheye lens or a cylindrical lens as described above, the focal length can be shortened with respect to the lens diameter. Therefore, the depth of the lamp device can be shortened, and it can be carried out especially in a place where the installation place is limited such as in the vehicle interior. When it is carried out as a vehicle headlight, the irradiation pattern can be changed from the vicinity. It has a feature that it can be switched to a far irradiation range, and the practical effect after implementing the present invention is extremely large.
第１図は本考案の第一の実施例を示す範囲可変型照明装
置の縦断面図、 第２図は同構成によりビームを収束した状態を示す要部
構成の平面略図、 第３図は同状態の正面略図、 第４図は同構成によりビームを拡散した状態を示す要部
構成の平面略図、 第５図は同構成によりビームを偏向した状態を示す要部
構成の正面略図、 第６図は本考案の第二の実施例を示す要部構成の平面略
図である。 2,21……リフレクタ、３……放物反射鏡面 ４……光源、５……拡散レンズ ６……レンズ位置駆動手段、７……集光レンズ ８……光束絞り変更機構 ９……光束方向変更機構、12……絞り調節螺子 13……方向調節螺子、14……魚眼凸レンズ 15……魚眼凹レンズ 22……縦断面円形反射鏡面 24……コリメーターレンズFIG. 1 is a vertical cross-sectional view of a range variable type illuminating device showing a first embodiment of the present invention, FIG. 2 is a schematic plan view of a main configuration showing a state in which a beam is converged by the same configuration, and FIG. 3 is the same. FIG. 4 is a schematic plan view of a main part configuration showing a state in which a beam is diffused by the same configuration, and FIG. 5 is a schematic front view of a main part configuration showing a state in which a beam is deflected by the same configuration, FIG. FIG. 3 is a schematic plan view of a main part configuration showing a second embodiment of the present invention. 2, 21 ...... Reflector, 3 ...... Parabolic reflecting mirror surface 4 ...... Light source, 5 ...... Diffusing lens 6 ...... Lens position driving means, 7 ...... Condensing lens 8 ...... Luminous flux diaphragm changing mechanism 9 ...... Change mechanism, 12 …… Aperture adjustment screw 13 …… Direction adjustment screw, 14 …… Fish-eye convex lens 15 …… Fish-eye concave lens 22 …… Longitudinal section circular reflecting mirror surface 24 …… Collimator lens
Claims (1)
物反射鏡面の略焦点位置に光源を設け、 前記リフレクタと灯具の前面位置には、各焦点距離がそ
れぞれ等しい複数個のレンズステップを適宜ピッチで配
列した集光レンズを配置し、 前記集光レンズの前方には、各焦点位置がそれぞれ等し
くかつ前記集光レンズと等ピッチの複数個のレンズステ
ップを配列した拡散レンズを配置し、 前記集光レンズをリフレクタの光軸方向又は／及び該光
軸と平行方向に対して摺動自在に担持し、該集光レンズ
と拡散レンズの相対位置を変位するように構成したこと
を特徴とする 範囲可変型照明装置。1. A light source is provided at a substantially focal position of a parabolic reflection mirror surface of a reflector provided at a rear end of a lamp body, and a plurality of lens steps having equal focal lengths are provided at front positions of the reflector and the lamp. A condenser lens arranged at an appropriate pitch is arranged, and in front of the condenser lens, a diffusion lens in which a plurality of lens steps having the same focal position and the same pitch as the condenser lens are arranged is arranged, The condenser lens is slidably carried in the optical axis direction of the reflector and / or in the direction parallel to the optical axis, and the relative position of the condenser lens and the diffusion lens is displaced. Variable range lighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988148468U JPH0638321Y2 (en) | 1988-11-16 | 1988-11-16 | Variable range lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988148468U JPH0638321Y2 (en) | 1988-11-16 | 1988-11-16 | Variable range lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0269405U JPH0269405U (en) | 1990-05-25 |
| JPH0638321Y2 true JPH0638321Y2 (en) | 1994-10-05 |
Family
ID=31419822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988148468U Expired - Lifetime JPH0638321Y2 (en) | 1988-11-16 | 1988-11-16 | Variable range lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638321Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017124429B4 (en) | 2016-10-27 | 2023-11-02 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device, method for producing a lighting device and light distributor |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821246B2 (en) * | 1990-08-06 | 1996-03-04 | 株式会社小糸製作所 | Lens driving device for variable light distribution type automotive lighting |
| JP2541869B2 (en) * | 1990-10-01 | 1996-10-09 | 株式会社小糸製作所 | Automotive headlights |
| JPH04287994A (en) * | 1991-01-09 | 1992-10-13 | Brother Ind Ltd | Laser output stabilizer |
| JPH11258411A (en) * | 1998-03-13 | 1999-09-24 | Omron Corp | Light diffusing plate and lighting system |
| JP4235427B2 (en) * | 2002-09-24 | 2009-03-11 | オスラム・メルコ株式会社 | Light emitting diode lamp |
| EP1673573A4 (en) * | 2003-10-06 | 2016-01-13 | Illumination Man Solutions Inc | Improved light source using light emitting diodes and an improved method of collecting the energy radiating from them |
| JP2005190954A (en) * | 2003-12-26 | 2005-07-14 | Harison Toshiba Lighting Corp | Lighting system |
| JP4632899B2 (en) * | 2005-08-17 | 2011-02-16 | 丸茂電機株式会社 | LED spotlight |
| JP2007294370A (en) * | 2006-03-28 | 2007-11-08 | Toshiba Lighting & Technology Corp | Spotlight |
| CN101573556A (en) * | 2006-12-29 | 2009-11-04 | 皇家飞利浦电子股份有限公司 | Floodlight with tiltable beam |
| JP2010192205A (en) * | 2009-02-17 | 2010-09-02 | Mitsubishi Electric Corp | Lighting system |
| AT517887B1 (en) * | 2015-10-23 | 2018-06-15 | Zkw Group Gmbh | Microprojection light module for vehicle headlights |
| JP6338027B2 (en) * | 2015-11-20 | 2018-06-06 | 大日本印刷株式会社 | Lighting device |
| JP6848460B2 (en) * | 2017-01-17 | 2021-03-24 | 市光工業株式会社 | Vehicle lighting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49105389A (en) * | 1973-02-12 | 1974-10-05 | ||
| JPH071584A (en) * | 1993-06-16 | 1995-01-06 | Mitsui Petrochem Ind Ltd | Heat-shrinkable film |
-
1988
- 1988-11-16 JP JP1988148468U patent/JPH0638321Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017124429B4 (en) | 2016-10-27 | 2023-11-02 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device, method for producing a lighting device and light distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0269405U (en) | 1990-05-25 |
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