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JP2005276678A - Lamp device - Google Patents

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JP2005276678A
JP2005276678A JP2004089467A JP2004089467A JP2005276678A JP 2005276678 A JP2005276678 A JP 2005276678A JP 2004089467 A JP2004089467 A JP 2004089467A JP 2004089467 A JP2004089467 A JP 2004089467A JP 2005276678 A JP2005276678 A JP 2005276678A
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light
reflecting mirror
light emitter
lamp device
spherical surface
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JP4310221B2 (en
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Kiichi Murakawa
貴一 村川
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Sharp Corp
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Sharp Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To enable to be obtained illumination light of homogeneous brightness distribution in a lamp device building-in a light source, which uses a luminous body of which its tip side is made spherical surface having lens characteristics. <P>SOLUTION: In the lamp device which the light source is built in, and which uses the luminous body where its tip side is made spherical surface having the lens characteristic, this is provided with a first reflecting mirror to reflect the light from the light source in the forward direction of the luminous body, and a second reflecting mirror which is arranged at the tip side of the luminous body and which reflects at least a part of the light irradiated from the light source in the direction of the first reflecting mirror. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、懐中電灯、カメラの補助照明、車両用のライトなどに適用可能なランプ装置に係り、特に、均一な照射光が得られるようにしたランプ装置に関するものである。   The present invention relates to a lamp device applicable to a flashlight, auxiliary lighting of a camera, a vehicle light, and the like, and more particularly to a lamp device that can obtain uniform irradiation light.

図５は、従来のランプ装置の構成を示す図である。図５において、１は発光体、２は、発光体１に内蔵されたＬＥＤ素子（発光素子）よりなる光源、３は、発光体１の先端側に形成されたレンズ特性をもつ半球状の球面、４は、発光体１の底部フランジ、５は、発光体１の底部フランジ４側に配置され、光源２からの光の一部を発光体１の前方方向（正面方向）に反射させる反射鏡（凹面鏡）である。   FIG. 5 is a diagram showing a configuration of a conventional lamp device. In FIG. 5, 1 is a light emitter, 2 is a light source comprising an LED element (light-emitting element) built in the light emitter 1, and 3 is a hemispherical spherical surface having lens characteristics formed on the tip side of the light emitter 1. Reference numeral 4 denotes a bottom flange of the light emitter 1, and 5 denotes a reflector that is disposed on the bottom flange 4 side of the light emitter 1 and reflects a part of light from the light source 2 in the forward direction (front direction) of the light emitter 1. (Concave mirror).

図５に示す構成において、光源２から放射された光９の一部は、光透過性樹脂で成形された発光体１の主体部の先端の球面３を通って、発光体１の前方方向に照射され、また、光源２から放射された光９の一部は、反射鏡５で反射されて、発光体１の前方方向に照射される。   In the configuration shown in FIG. 5, a part of the light 9 emitted from the light source 2 passes through the spherical surface 3 at the tip of the main part of the light emitter 1 formed of a light-transmitting resin, and in the forward direction of the light emitter 1. A part of the light 9 irradiated and emitted from the light source 2 is reflected by the reflecting mirror 5 and irradiated in the forward direction of the light emitter 1.

このような構成をとるランプ装置では、光源２に印加する電流値や、反射鏡５の曲率を変化させることで、明るさを変化させるようになっているが、基本的には、発光体１のもつ発光量をいかに効率よく、発光体１の前方方向へ照射させるかが、課題となっている。   In the lamp device having such a configuration, the brightness is changed by changing the current value applied to the light source 2 or the curvature of the reflecting mirror 5. The problem is how to efficiently irradiate the amount of emitted light in the forward direction of the light emitter 1.

なお、上記したように、発光体の後部に反射鏡を配設したランプ装置は、公知である（例えば、特許文献１参照）。
特開平６−２６０００１号公報 In addition, as described above, a lamp device in which a reflecting mirror is disposed at the rear part of a light emitter is known (for example, see Patent Document 1).
JP-A-6-260001

ところで、図５に示したランプ装置では、発光体１の先端の球面３自体の構造によって、前方に照射する光の中心輝度、前方に照射する光の中心側の照射方向（光軸方向）が、ほとんど決定されてしまうため、発光体１の後部に反射鏡５を配置しても、反射鏡５は、発光体１の照射光の一部の照射方向を調整するものでしかなく、そのため、中心側の輝度を大きく可変させることができず、均一な輝度分布の照射光を得ることが、困難であるという問題があった。これは、図５に示した従来のランプ装置の構成では、光源２全体を覆う樹脂成形品で形成された発光体１の主体部の先端に、レンズ特性をもたせており、そのレンズ特性をそのまま利用する構成であったためである。   Incidentally, in the lamp device shown in FIG. 5, due to the structure of the spherical surface 3 itself at the tip of the light emitter 1, the central luminance of the light irradiated forward and the irradiation direction (optical axis direction) of the central side of the light irradiated forward are set. Therefore, even if the reflector 5 is arranged at the rear part of the light emitter 1, the reflector 5 only adjusts the irradiation direction of a part of the light emitted from the light emitter 1, and therefore, There is a problem that it is difficult to obtain illumination light having a uniform luminance distribution because the luminance on the center side cannot be varied greatly. In the configuration of the conventional lamp device shown in FIG. 5, the lens characteristic is given to the tip of the main part of the light emitting body 1 formed of a resin molded product covering the entire light source 2, and the lens characteristic is maintained as it is. This is because the configuration is used.

したがって、光源１から直接前方に照射される光量と、一旦後部の反射鏡５で反射させて前方に照射される光量とに、差があることから、発光体１と被照射面との間の距離が接近している場合には、被照射面の中心輝度が、周辺の輝度よりも極端に上がってしまうという問題があった。図６は、図５に示したランプ装置で接近したパネル１０を照射した状態を示しており、２重の光輪１１、１２が生じている。   Therefore, since there is a difference between the amount of light directly irradiated from the light source 1 and the amount of light that is once reflected by the rear reflecting mirror 5 and irradiated forward, there is a difference between the light emitter 1 and the irradiated surface. When the distance is close, there is a problem that the central luminance of the irradiated surface is extremely higher than the peripheral luminance. FIG. 6 shows a state in which the panel 10 approached by the lamp device shown in FIG. 5 is irradiated, and double halos 11 and 12 are generated.

本発明は上記の点に鑑みなされたもので、その目的とするところは、均一な輝度分布の照射光が得られるランプ装置を提供することにある。   The present invention has been made in view of the above points, and an object of the present invention is to provide a lamp device capable of obtaining irradiation light having a uniform luminance distribution.

本発明は上記した目的を達成するため、光源を内蔵すると共に、その先端側がレンズ特性をもたせた球面とされた発光体を用いるランプ装置において、光源からの光を発光体の前方方向に反射させる第１の反射鏡と、発光体の先端側に配置され、光源から前記発光体の前方方向に照射された光の少なくとも一部を、第１の反射鏡の方向へ反射させる第２の反射鏡とを、備えた構成をとる。
また、第２の反射鏡の反射面は、発光体の先端の球面よりも緩やかな略弧状面で、且つ、発光体の先端の球面よりも径の大きい非球面、あるいは、第２の反射鏡の反射面は、発光体の先端の球面よりも曲率が大きく、且つ、発光体の先端の球面よりも径の大きい球面として、構成される。
また、第２の反射鏡は、全反射ミラーあるいはハーフミラーとして、構成される。 In order to achieve the above-described object, the present invention reflects a light from a light source in a forward direction of the light emitter in a lamp device using a light emitter with a built-in light source and a spherical surface having a lens characteristic at the tip side. A first reflecting mirror and a second reflecting mirror that is disposed on the front end side of the light emitter and reflects at least part of the light emitted from the light source in the forward direction of the light emitter toward the first reflector. And the structure provided.
The reflecting surface of the second reflecting mirror is a substantially arcuate surface that is gentler than the spherical surface at the tip of the light emitter, and an aspherical surface having a larger diameter than the spherical surface at the tip of the light emitter, or the second reflecting mirror. The reflecting surface is configured as a spherical surface having a larger curvature than the spherical surface at the tip of the light emitter and a larger diameter than the spherical surface at the tip of the light emitter.
The second reflecting mirror is configured as a total reflection mirror or a half mirror.

本発明によれば、光源から発光体の前方方向に照射された光の少なくとも一部を、第２の反射鏡によって第１の反射鏡の方向へ反射させ、これを第１の反射鏡により反射させて前方に照射するので、これにより、発光体単体がもつ照射面積よりも、はるかに広い照射面からの照射が可能となる。特に、第２の反射鏡を全反射ミラーとした場合には、発光体から直接前方に照射される光を全て、第２の反射鏡によって第１の反射鏡の方向へ反射させることができるので、極端に言えば、点照射から面照射にできることで、接近した被照射面に対して、均一な輝度分布の照射を行うことができる。
さらに、第２の反射鏡の反射面を、発光体の先端の球面よりも緩やかな略弧状面で、且つ、発光体の先端の球面よりも径の大きい非球面、あるいは、第２の反射鏡の反射面を、発光体の先端の球面よりも曲率が大きく、且つ、発光体の先端の球面よりも径の大きい球面とした場合には、発光体から直接前方に照射される光を、発光体の先端の球面よりも開口が大きく、且つ、緩やかな非球面または曲率の大きい球面をもつ第２の反射鏡により、第１の反射鏡の広い範囲に分散させて入射させることができるので、接近した被照射面に対して、より一層、均一な輝度分布の照射を行うことができる。
さらに、第２の反射鏡をハーフミラーとした場合には、ハーフミラーを透過する光を前方に照射できるので、このハーフミラーを透過する光量や照射範囲によって、輝度分布の調整が可能となり、照射光の光学設計の自由度が高まる。 According to the present invention, at least part of the light emitted from the light source in the forward direction of the light emitter is reflected by the second reflecting mirror toward the first reflecting mirror, and this is reflected by the first reflecting mirror. Therefore, irradiation from a far wider irradiation surface is possible than the irradiation area of the single light emitter. In particular, when the second reflecting mirror is a total reflection mirror, all the light directly irradiated forward from the light emitter can be reflected in the direction of the first reflecting mirror by the second reflecting mirror. Extremely speaking, by being able to change from point irradiation to surface irradiation, it is possible to irradiate a surface to be irradiated with a uniform luminance distribution.
Furthermore, the reflecting surface of the second reflecting mirror is an aspherical surface having a substantially arcuate surface that is gentler than the spherical surface at the tip of the light emitter and a diameter larger than the spherical surface at the tip of the light emitter, or the second reflecting mirror. If the reflecting surface is a spherical surface having a larger curvature than the spherical surface at the tip of the light emitter and a larger diameter than the spherical surface at the tip of the light emitter, light emitted directly from the light emitter is emitted. Since the second reflecting mirror having a larger aspherical surface than the spherical surface at the tip of the body and having a gentle aspherical surface or a spherical surface with a large curvature can be dispersed and incident on a wide range of the first reflecting mirror. Irradiation with a more uniform luminance distribution can be performed on the surface to be irradiated that is close.
Furthermore, when the second reflecting mirror is a half mirror, the light transmitted through the half mirror can be irradiated forward, so that the luminance distribution can be adjusted according to the amount of light transmitted through the half mirror and the irradiation range. The degree of freedom in optical design is increased.

以下、本発明の実施の形態を、図面を用いて説明する。
図１は、本発明の第１実施形態に係るライト装置の構成を示す図である。図１において、１は発光体、２は、発光体１に内蔵されたＬＥＤ素子（発光素子）よりなる光源、３は、発光体１の先端側に形成されたレンズ特性をもつ半球状の球面、４は、発光体１の底部フランジ、５は、発光体１の底部フランジ４側に配置され、光源２からの光９および後記反射鏡６から入射した光９を、発光体１の前方方向（正面方向）に反射させる、凹面鏡からなる反射鏡（第１の反射鏡）、６は、発光体１の先端側に配置され、光源２から発光体１の前方方向に照射された光を第１の反射鏡の方向へ反射させる、凹面鏡からなる反射鏡（第２の反射鏡）、１０は、発光体１の前方に接近して位置する被照射面であるパネルである。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a configuration of a light device according to the first embodiment of the present invention. In FIG. 1, 1 is a light emitter, 2 is a light source composed of an LED element (light emitting element) built in the light emitter 1, and 3 is a hemispherical spherical surface having lens characteristics formed on the tip side of the light emitter 1. Reference numeral 4 denotes a bottom flange of the illuminator 1, and 5 denotes a bottom flange 4 side of the illuminator 1. The light 9 from the light source 2 and the light 9 incident from the reflecting mirror 6 are transmitted in the forward direction of the illuminant 1. A reflecting mirror (first reflecting mirror) 6 that reflects in the (front direction) is disposed on the front end side of the light emitter 1, and the light irradiated from the light source 2 in the forward direction of the light emitter 1 is the first. A reflecting mirror (second reflecting mirror) 10 that reflects in the direction of the reflecting mirror 1 is a panel that is an irradiated surface that is positioned close to the front of the light emitter 1.

本第１実施形態では、図２に示すように、第２の反射鏡６の反射面は、発光体１の球面３と同一径（同一開口）で、且つ、発光体１の球面３と同一の曲率をもつ、全反射ミラーとして形成されており、発光体１の球面３を覆う側である反射面には、反射膜をコーティングしてある。なお、第２の反射鏡６の両面に反射膜をコーティングしても差し支えない。なおまた、第２の反射鏡６は、半透過型のハーフミラーとしてもよく、この場合には、ハーフミラーとなるコーティング処理を施し、透過率と反射率との比率を所望のものに設定する。   In the first embodiment, as shown in FIG. 2, the reflecting surface of the second reflecting mirror 6 has the same diameter (same opening) as the spherical surface 3 of the light emitter 1 and the same as the spherical surface 3 of the light emitter 1. The reflective surface, which is the side covering the spherical surface 3 of the light emitter 1, is coated with a reflective film. It should be noted that a reflective film may be coated on both surfaces of the second reflecting mirror 6. The second reflecting mirror 6 may be a semi-transmissive half mirror. In this case, a coating process for forming a half mirror is performed, and the ratio between the transmittance and the reflectance is set to a desired value. .

図１に示す構成において、発光体１の光源２から放射された光のうち、発光体１から直接前方に放射された光９は、第２の反射鏡６によって反射されて第１の反射鏡５に入射された後、第１の反射鏡５によって反射されて、発光体１の前方方向に照射される。また、光源２から側方に放射された光９は、第１の反射鏡５で反射されて、発光体１の前方方向に照射される。   In the configuration shown in FIG. 1, among the light emitted from the light source 2 of the light emitter 1, the light 9 emitted directly forward from the light emitter 1 is reflected by the second reflector 6 and is reflected by the first reflector. Then, the light is reflected by the first reflecting mirror 5 and irradiated in the forward direction of the light emitter 1. Further, the light 9 emitted from the light source 2 to the side is reflected by the first reflecting mirror 5 and irradiated in the forward direction of the light emitter 1.

このような構成をとる本第１実施形態では、発光体１から直接前方に照射される光を全て、第２の反射鏡６によって第１の反射鏡５の方向へ反射させることができるので、極端に言えば、点照射から面照射にすることができ、接近した被照射面に対して、均一な輝度分布の照射を行うことができる。図３は、図１に示した本第１実施形態のランプ装置で、接近したパネル１０を照射した状態を示しており、従来のように２重の光輪は生じず、均等な輝度分布での光輪１１が１つだけ現れている。   In the first embodiment having such a configuration, all the light directly irradiated forward from the light emitter 1 can be reflected by the second reflecting mirror 6 toward the first reflecting mirror 5. Speaking extremely, it is possible to change from point irradiation to surface irradiation, and it is possible to perform irradiation with a uniform luminance distribution on the close irradiated surface. FIG. 3 shows a state in which the approaching panel 10 is irradiated in the lamp device according to the first embodiment shown in FIG. 1, and a double halo is not generated as in the prior art, and a uniform luminance distribution is obtained. Only one halo 11 appears.

図４は、本発明の第１実施形態に係るライト装置で用いる第２の反射鏡６’を示しており、図４において、図１、図２と同一の構成要素には同一符号を付してある。本第２実施形態の第２の反射鏡６’が、前記第１実施形態の第２の反射鏡６と相違するのは、本第２実施形態の第２の反射鏡６’の反射面を、発光体１の先端の球面３よりも緩やかな略弧状面で、且つ、発光体１の先端の球面３よりも径の大きい（開口Ｈの）非球面として、あるいは、第２の反射鏡６’の反射面を、発光体１の先端の球面３よりも曲率が大きく、且つ、発光体の先端の球面３よりも径の大きい（開口Ｈの）球面として、形成した点にある。ここでは、第２の反射鏡６’における発光体１の球面３を覆う側である反射面には、反射膜をコーティングして、第２の反射鏡６’を全反射ミラーとして構成してある。なお、第２の反射鏡６’の両面に反射膜をコーティングしても差し支えない。なおまた、第２の反射鏡６’は、半透過型のハーフミラーとしてもよく、この場合には、ハーフミラーとなるコーティング処理を施し、透過率と反射率との比率を所望のものに設定する。   FIG. 4 shows a second reflecting mirror 6 ′ used in the light device according to the first embodiment of the present invention. In FIG. 4, the same components as those in FIGS. It is. The second reflecting mirror 6 ′ of the second embodiment is different from the second reflecting mirror 6 of the first embodiment in that the reflecting surface of the second reflecting mirror 6 ′ of the second embodiment is different. The second reflecting mirror 6 has a substantially arcuate surface that is gentler than the spherical surface 3 at the tip of the light emitter 1 and has an aspherical surface (with an opening H) that is larger in diameter than the spherical surface 3 at the tip of the light emitter 1. The reflecting surface is formed as a spherical surface having a larger curvature than the spherical surface 3 at the tip of the light emitter 1 and a larger diameter (opening H) than the spherical surface 3 at the tip of the light emitter. Here, the reflecting surface on the side of the second reflecting mirror 6 ′ that covers the spherical surface 3 of the light emitter 1 is coated with a reflecting film, and the second reflecting mirror 6 ′ is configured as a total reflection mirror. . It should be noted that a reflective film may be coated on both surfaces of the second reflecting mirror 6 '. The second reflecting mirror 6 ′ may be a semi-transmissive half mirror. In this case, a coating process for forming a half mirror is performed, and the ratio between the transmittance and the reflectance is set to a desired value. To do.

このような構成の第２の反射鏡６’を用いると、発光体１から直接前方に照射される光を、発光体１の先端の球面３よりも開口が大きく、且つ、緩やかな非球面または曲率の大きい球面をもつ第２の反射鏡６’により、第１の反射鏡５の広い範囲に分散させて入射させることができるので、接近した被照射面に対して、より一層、均一な輝度分布の照射を行うことができる。   When the second reflecting mirror 6 ′ having such a configuration is used, the light directly irradiated forward from the light emitter 1 has a larger opening than the spherical surface 3 at the tip of the light emitter 1 and a gentle aspheric surface or The second reflecting mirror 6 ′ having a spherical surface with a large curvature can be dispersed and incident on a wide range of the first reflecting mirror 5, so that a more uniform brightness can be obtained with respect to the close irradiated surface. Distribution irradiation can be performed.

なお、第１、第２実施形態において、第２の反射鏡６、６’をハーフミラーとした場合にも、均一な輝度分布の照射を行うことが可能で、この場合には、ハーフミラーを透過する光量や照射範囲によって、輝度分布の調整が可能となり、照射光の光学設計の自由度が高まる。   In the first and second embodiments, even when the second reflecting mirrors 6 and 6 ′ are half mirrors, it is possible to perform irradiation with a uniform luminance distribution. The luminance distribution can be adjusted depending on the amount of light transmitted and the irradiation range, and the degree of freedom in optical design of the irradiation light is increased.

なおまた、第２の反射鏡６、６’は、発光体１の先端の球面３に光透過性の接着剤などによって取り付けても、あるいは、照射光を遮らない他の適宜の手段で、筐体などに取り付けてよい。   The second reflecting mirrors 6 and 6 'are attached to the spherical surface 3 at the tip of the light emitter 1 with a light-transmitting adhesive or the like, or other appropriate means that does not block the irradiation light. It may be attached to the body.

本発明の第１実施形態に係るランプ装置の構成を示す説明図である。It is explanatory drawing which shows the structure of the lamp device which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係るランプ装置で用いる発光体と第２の反射鏡を示す説明図である。It is explanatory drawing which shows the light-emitting body and 2nd reflective mirror which are used with the lamp device which concerns on 1st Embodiment of this invention. 図１のランプ装置装置によって近接したパネルを照射した状態を示す説明図である。It is explanatory drawing which shows the state which irradiated the panel which adjoined by the lamp apparatus apparatus of FIG. 本発明の第２実施形態に係るランプ装置で用いる発光体と第２の反射鏡を示す説明図である。It is explanatory drawing which shows the light-emitting body and 2nd reflective mirror which are used with the lamp device which concerns on 2nd Embodiment of this invention. 従来のランプ装置の構成を示す説明図である。It is explanatory drawing which shows the structure of the conventional lamp device. 図５のランプ装置装置によって近接したパネルを照射した状態を示す説明図である。It is explanatory drawing which shows the state which irradiated the panel which adjoined by the lamp apparatus apparatus of FIG.

符号の説明Explanation of symbols

１ 発光体
２ 光源
３ レンズ特性をもつ半球状の球面
４ 底部フランジ
５ 反射鏡（第１の反射鏡）
６ 反射鏡（第２の反射鏡）
９ 光
１０ パネル
１１、１２ 光輪 DESCRIPTION OF SYMBOLS 1 Light-emitting body 2 Light source 3 Hemispherical spherical surface with lens characteristics 4 Bottom flange 5 Reflective mirror (first reflective mirror)
6 reflector (second reflector)
9 light 10 panel 11, 12 halo

Claims (5)

光源を内蔵すると共に、その先端側がレンズ特性をもたせた球面とされた発光体を用いるランプ装置であって、
前記光源からの光を前記発光体の前方方向に反射させる第１の反射鏡と、
前記発光体の先端側に配置され、前記光源から前記発光体の前方方向に照射された光の少なくとも一部を、前記第１の反射鏡の方向へ反射させる第２の反射鏡とを、
備えたことを特徴とするランプ装置。 A lamp device that uses a light-emitting body that incorporates a light source and has a spherical surface with lens characteristics at the tip side,
A first reflecting mirror that reflects light from the light source in a forward direction of the light emitter;
A second reflecting mirror that is disposed on the tip side of the luminous body and reflects at least a part of the light emitted from the light source in the forward direction of the luminous body in the direction of the first reflecting mirror;
A lamp device characterized by comprising. 請求項１に記載のランプ装置において、
前記第２の反射鏡の反射面は、前記発光体の先端の球面よりも緩やかな略弧状面で、且つ、前記発光体の先端の球面よりも径の大きい非球面であることを特徴とするランプ装置。 The lamp device according to claim 1, wherein
The reflecting surface of the second reflecting mirror is a substantially arcuate surface that is gentler than the spherical surface at the tip of the light emitter, and an aspherical surface having a larger diameter than the spherical surface at the tip of the light emitter. Lamp device. 請求項１に記載のランプ装置において、
前記第２の反射鏡の反射面は、前記発光体の先端の球面よりも曲率が大きく、且つ、前記発光体の先端の球面よりも径の大きい球面であることを特徴とするランプ装置。 The lamp device according to claim 1, wherein
The lamp device according to claim 1, wherein the reflecting surface of the second reflecting mirror is a spherical surface having a larger curvature than the spherical surface at the tip of the light emitter and a larger diameter than the spherical surface at the tip of the light emitter. 請求項１ないし３のいずれか１項に記載のランプ装置において、
前記第２の反射鏡は全反射ミラーであることを特徴とするランプ装置。 The lamp device according to any one of claims 1 to 3,
The lamp device, wherein the second reflecting mirror is a total reflection mirror. 請求項１ないし３のいずれか１項に記載のランプ装置において、
前記第２の反射鏡はハーフミラーであることを特徴とするランプ装置。 The lamp device according to any one of claims 1 to 3,
The lamp device, wherein the second reflecting mirror is a half mirror.
JP2004089467A 2004-03-25 2004-03-25 Lamp device Expired - Fee Related JP4310221B2 (en)

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JP4310221B2 JP4310221B2 (en) 2009-08-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010541158A (en) * 2007-09-27 2010-12-24 オスラム ゲゼルシャフト ミット ベシュレンクテル ハフツング Metal halide reflector lamp with light color homogenizer
JP2013507728A (en) * 2009-10-09 2013-03-04 オスラム ゲーエムベーハー Luminaire with light guide and Cartesian lens or Cartesian reflector
JP2013182882A (en) * 2012-03-02 2013-09-12 Asahi Raizu Kk Led bulb for replacing halogen lamp for automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010541158A (en) * 2007-09-27 2010-12-24 オスラム ゲゼルシャフト ミット ベシュレンクテル ハフツング Metal halide reflector lamp with light color homogenizer
JP2013507728A (en) * 2009-10-09 2013-03-04 オスラム ゲーエムベーハー Luminaire with light guide and Cartesian lens or Cartesian reflector
US9285526B2 (en) 2009-10-09 2016-03-15 Osram Gmbh Lighting fixture having an optical wave guide and a descartes lens or descartes reflector
JP2013182882A (en) * 2012-03-02 2013-09-12 Asahi Raizu Kk Led bulb for replacing halogen lamp for automobile

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