JP5349940B2 - Infrared projector for vehicles - Google Patents

Infrared projector for vehicles Download PDF

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JP5349940B2
JP5349940B2 JP2008316322A JP2008316322A JP5349940B2 JP 5349940 B2 JP5349940 B2 JP 5349940B2 JP 2008316322 A JP2008316322 A JP 2008316322A JP 2008316322 A JP2008316322 A JP 2008316322A JP 5349940 B2 JP5349940 B2 JP 5349940B2
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俊彦 蓑田
元幸 市原
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Stanley Electric Co Ltd
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Description

本発明は、前方監視システム（ナイトビジョン）等に使用される車両用赤外投光器に関するものである。   The present invention relates to a vehicle infrared projector used in a forward monitoring system (night vision) or the like.

車両に搭載される前方監視システム（ナイトビジョン）は、夜間走行時に車両前方に赤外線を照射し、車両前方の物体によって反射した赤外線を赤外線カメラで撮像して物体を画像化するシステムであって、これには赤外線を車両前方に照射するための赤外投光器が備えられている。   A front monitoring system (night vision) mounted on a vehicle is a system that irradiates an infrared ray in front of the vehicle when traveling at night and images an object by imaging an infrared ray reflected by an object in front of the vehicle with an infrared camera, This is equipped with an infrared projector for irradiating the vehicle with infrared rays in front of the vehicle.

ここで、赤外投光器は、光源としての赤外ＬＥＤ等の赤外発光素子から出射される赤外線を集光レンズ又はリフレクタを経て前方に照射するよう構成されているが、赤外ＬＥＤは、その発光特性から僅かながら赤色光も出射する。このため、肉眼で赤外投光器を見ると赤みがかって見え、テールランプやストップランプ等の機能色との間で誤認が発生する等、安全上及び外観上、更には法規上も好ましくない。   Here, the infrared projector is configured to irradiate an infrared ray emitted from an infrared light emitting element such as an infrared LED as a light source forward through a condenser lens or a reflector. A little red light is emitted from the light emission characteristics. For this reason, when the infrared projector is viewed with the naked eye, it looks reddish, and misidentification occurs between functional colors such as a tail lamp and a stop lamp, which is not preferable in terms of safety, appearance, and regulations.

そこで、特許文献１には、図５に示すように、光源として複数の赤外ＬＥＤ１１と白色ＬＥＤ１２を配列し、これらの赤外ＬＥＤ１１及び白色ＬＥＤ１２と集光レンズ１３との間に円錐台状の導光体１４を配置する構成が提案されている。この構成によれば、赤外ＬＥＤ１１から赤外線と共に出射される赤色光と白色ＬＥＤ１２から出射される白色光とが導光体１４内で混合されるため、集光レンズ１３の赤みがかった色を消すことができる。   Therefore, in Patent Document 1, as shown in FIG. 5, a plurality of infrared LEDs 11 and white LEDs 12 are arranged as light sources, and a frustoconical shape is formed between the infrared LEDs 11 and the white LEDs 12 and the condenser lens 13. The structure which arrange | positions the light guide 14 is proposed. According to this configuration, since the red light emitted from the infrared LED 11 together with the infrared light and the white light emitted from the white LED 12 are mixed in the light guide 14, the reddish color of the condenser lens 13 is erased. Can do.

又、特許文献２には、図６に示すように、赤外発光素子２１と、該赤外発光素子２１からの光を前方に照射するためのレンズ２３とを備えた車両用投光器において、白色光を発生させる光源２２を設け、この光源２２からの白色光を散乱光としてレンズ２３に入射させる構成が提案されている。この構成によれば、赤外発光素子２１から赤外線と共に出射される赤色光を、レンズ２３に散乱光として入射される白色光によるマスク効果によって目立たなくすることができる。   Further, in Patent Document 2, as shown in FIG. 6, in a vehicle projector including an infrared light emitting element 21 and a lens 23 for irradiating light from the infrared light emitting element 21 forward, A configuration has been proposed in which a light source 22 for generating light is provided and white light from the light source 22 is incident on the lens 23 as scattered light. According to this configuration, the red light emitted from the infrared light emitting element 21 together with the infrared light can be made inconspicuous by the mask effect by the white light incident on the lens 23 as the scattered light.

更に、特許文献３には、図７に示すように、光源として赤外ＬＥＤ３１と可視光ＬＥＤ３２を並設し、赤外ＬＥＤ３１から出射される赤外線と可視光ＬＥＤ３２から出射される可視光をリフレクタ３３で反射させて混合することによって、赤外ＬＥＤ３１から赤外線と共に出射される赤色光を可視光によるマスク効果によって目立たなくする構成が提案されている。
Further, in Patent Document 3, as shown in FIG. 7, an infrared LED 31 and a visible light LED 32 are arranged in parallel as a light source, and infrared light emitted from the infrared LED 31 and visible light emitted from the visible light LED 32 are reflected. A configuration has been proposed in which the red light emitted from the infrared LED 31 together with the infrared light is made inconspicuous by the mask effect by visible light by being reflected and mixed at 33.

しかしながら、特許文献１において提案された図５に示す構成では、赤外ＬＥＤ１１及び白色ＬＥＤ１２と集光レンズ１３との間に導光体１４が配置されるため、部品点数が増えて構造が複雑化するとともに、導光体１４の存在によって赤外線の照射効率が低下するという問題がある。   However, in the configuration shown in FIG. 5 proposed in Patent Document 1, the light guide body 14 is disposed between the infrared LED 11 and the white LED 12 and the condenser lens 13, so that the number of parts increases and the structure becomes complicated. In addition, there is a problem in that the presence of the light guide 14 reduces the infrared irradiation efficiency.

又、特許文献２において提案された図６に示す構成では、凸レンズのような狭い配光のレンズ２３に焦点以外の箇所から白色光を入射させてもレンズ２３から白色光が出射されないため、前方からレンズ２３を見ると赤色光が部分的に漏れてしまうという問題がある。   Further, in the configuration shown in FIG. 6 proposed in Patent Document 2, white light is not emitted from the lens 23 even if white light is incident on a narrow light distribution lens 23 such as a convex lens from a position other than the focal point. When the lens 23 is viewed from the side, there is a problem that red light partially leaks.

更に、特許文献３において提案された図７に示す構成では、配光を形成するリフレクタ３３に対する赤外ＬＥＤ３１と可視光ＬＥＤ３２の焦点位置が異なるため、狭配光になればなる程、焦点ズレに起因して見る角度によっては赤色光が漏れてしまうという問題がある。   Further, in the configuration shown in FIG. 7 proposed in Patent Document 3, since the focal positions of the infrared LED 31 and the visible light LED 32 with respect to the reflector 33 forming the light distribution are different, the narrower the light distribution, the more the focus shifts. There is a problem that red light leaks depending on the viewing angle.

本発明は上記問題に鑑みてなされたもので、その目的とする処は、照射効率の低下を招くことなく、赤外線と共に出射される赤色光を簡単な構成で消すことができる車両用赤外線投光器を提供することにある。   The present invention has been made in view of the above-mentioned problems, and a target process thereof is a vehicle infrared projector capable of extinguishing red light emitted together with infrared rays with a simple configuration without causing a decrease in irradiation efficiency. It is to provide.

上記目的を達成するため、請求項１記載の発明は、赤外発光素子から出射される赤外線を集光レンズ又はリフレクタを経て所定の方向に照射するよう構成された車両用赤外投光器において、
可視光を出射する可視光発光素子を前記赤外発光素子の横に配置し、
該可視光発光素子から出射される可視光をリフレクタによって反射させて前記赤外発光素子に向けて照射し、その反射光を前記赤外発光素子から出射される赤外光と共に集光レンズによって集光して同一方向へ照射するよう構成したことを特徴とする。
In order to achieve the above object, an invention according to claim 1 is directed to an infrared projector for a vehicle configured to irradiate infrared rays emitted from an infrared light emitting element in a predetermined direction through a condenser lens or a reflector.
A visible light emitting element that emits visible light is disposed beside the infrared light emitting element,
The visible light emitted from the visible light emitting element is reflected by a reflector and irradiated toward the infrared light emitting element, and the reflected light is collected by the condenser lens together with the infrared light emitted from the infrared light emitting element. It is characterized by being configured to emit light and irradiate in the same direction.

請求項２記載の発明は、赤外発光素子から出射される赤外線を集光レンズ又はリフレクタを経て所定の方向に照射するよう構成された車両用赤外投光器において、
可視光を出射する可視光発光素子を前記赤外発光素子の横に配置し、
該可視光発光素子から出射される可視光を集光レンズによって集光した後に反射板によって反射させて前記赤外発光素子に照射し、その反射光を前記赤外発光素子から出射される赤外線と共にリフレクタによって反射させて同一方向へ照射するよう構成したことを特徴とする。
Invention of Claim 2 is the infrared projector for vehicles comprised so that the infrared rays radiate | emitted from an infrared light emitting element might be irradiated to a predetermined direction through a condensing lens or a reflector,
A visible light emitting element that emits visible light is disposed beside the infrared light emitting element,
It is reflected by the reflecting plate after condensed by the condenser lens visible light emitted from the visible light emitting element irradiating the infrared light emitting element is emitted and the reflected light from the front Symbol infrared light - emitting element It is characterized by being configured to irradiate in the same direction by being reflected by a reflector together with infrared rays.

本発明によれば、可視光発光素子から出射される可視光が赤外発光素子に向けて照射されると、この可視光は、赤外発光素子の微小な凹凸によって乱反射し、赤外発光素子から出射される赤外線と共に集光レンズ又はリフレクタを経て同一方向に照射される。このため、赤外線の照射範囲と同範囲に可視光が照射され、赤外発光素子から赤外線と共に出射される赤色光が可視光によるマスク効果によって消され、赤色光が漏れ出て集光レンズ等が赤みがかって見えることがなく、外観上及び法規上の問題が発生することがない。   According to the present invention, when visible light emitted from the visible light emitting element is irradiated toward the infrared light emitting element, the visible light is irregularly reflected by the minute unevenness of the infrared light emitting element, and the infrared light emitting element Irradiated in the same direction through a condenser lens or reflector together with infrared rays emitted from the light source. For this reason, visible light is irradiated in the same range as the infrared irradiation range, the red light emitted from the infrared light emitting element together with the infrared light is extinguished by the mask effect by visible light, the red light leaks, and the condenser lens etc. It does not appear reddish, and there are no appearance and legal problems.

又、本発明では、赤外発光素子と集光レンズ又はリフレクタとの間に光量を低下させる遮蔽物を配置しないため、照射効率の低下を招くことなく、赤外線と共に出射される赤色光を簡単な構成で消すことができる。   Further, in the present invention, since a shielding object for reducing the amount of light is not disposed between the infrared light emitting element and the condenser lens or the reflector, the red light emitted together with the infrared light can be simplified without reducing the irradiation efficiency. Can be turned off by configuration.

以下に本発明の実施の形態を添付図面に基づいて説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

＜実施の形態１＞
図１は本発明の実施の形態１に係る車両用赤外投光器の基本構成を示す平断面図であり、図示の車両用赤外投光器１は前方監視システム（ナイトビジョン）に設けられるものであって、光源として赤外発光素子である赤外ＬＥＤ２を備えており、この赤外ＬＥＤ２の前方（図１の上方）には半球状の集光レンズ３が配設されている。尚、赤外ＬＥＤ２は、赤色から赤外に亘る波長領域の光を出射する発光特性を有しており、赤外線と共に僅かな赤色光を出射する。 <Embodiment 1>
FIG. 1 is a cross-sectional plan view showing a basic configuration of a vehicular infrared projector according to Embodiment 1 of the present invention. The illustrated vehicular infrared projector 1 is provided in a forward monitoring system (night vision). In addition, an infrared LED 2 that is an infrared light emitting element is provided as a light source, and a hemispherical condenser lens 3 is disposed in front of the infrared LED 2 (upward in FIG. 1). The infrared LED 2 has a light emission characteristic of emitting light in a wavelength region ranging from red to infrared, and emits a slight amount of red light together with the infrared light.

又、赤外ＬＥＤ２の横には可視光発光素子である可視光ＬＥＤ４が並設されており、この可視光ＬＥＤ４の前方には楕円曲面状のリフレクタ５が配設されている。   A visible light LED 4 that is a visible light emitting element is arranged in parallel to the infrared LED 2, and an elliptically curved reflector 5 is disposed in front of the visible light LED 4.

而して、赤外ＬＥＤ２から車両前方に向かって出射される赤外線は、集光レンズ３によって集光されて車両前方へと照射され、車両前方の物体によって反射した赤外線は不図示の赤外線カメラによって撮像されて物体が画像化される。又、同時に可視光ＬＥＤ２から車両前方に向かって出射される可視光は、リフリクタ５によって反射し、その反射光は集光して赤外ＬＥＤ２の表面に向かって照射される。   Thus, the infrared light emitted from the infrared LED 2 toward the front of the vehicle is condensed by the condenser lens 3 and irradiated to the front of the vehicle, and the infrared reflected by the object in front of the vehicle is reflected by an infrared camera (not shown). The object is imaged by imaging. At the same time, the visible light emitted from the visible light LED 2 toward the front of the vehicle is reflected by the reflector 5, and the reflected light is condensed and irradiated toward the surface of the infrared LED 2.

上述のように可視光ＬＥＤ４から出射される可視光が赤外ＬＥＤ２に向けて照射されると、この可視光は、赤外ＬＥＤ２の表面（封止樹脂やパッケージ表面）の微小な凹凸によって乱反射し、赤外ＬＥＤ２から出射される赤外線と共に集光レンズ３を通過して車両前方へと照射される。ここで、集光レンズ３に対して赤外ＬＥＤ２と可視光ＬＥＤ４の仮想焦点の位置が合わされているため、赤外線の照射範囲と同範囲に可視光が照射され、赤外ＬＥＤ２から赤外線と共に出射される赤色光が可視光によるマスク効果によって消される。この結果、赤色光が漏れ出て集光レンズ３が赤みがかって見えることがなく、当該車両用投光器１に外観上及び法規上の問題が発生することがない。   As described above, when visible light emitted from the visible light LED 4 is irradiated toward the infrared LED 2, the visible light is irregularly reflected by minute unevenness on the surface of the infrared LED 2 (sealing resin or package surface). The light emitted from the infrared LED 2 passes through the condenser lens 3 and is irradiated forward of the vehicle. Here, since the positions of the virtual focal points of the infrared LED 2 and the visible light LED 4 are aligned with the condenser lens 3, visible light is irradiated in the same range as the infrared irradiation range, and is emitted from the infrared LED 2 together with the infrared light. Red light is extinguished by the mask effect of visible light. As a result, the red light does not leak and the condensing lens 3 does not appear reddish, and the vehicle projector 1 does not have any problems in appearance and regulations.

又、本実施の形態に係る車両用赤外投光器１では、赤外ＬＥＤ２と集光レンズ３との間に光量を低下させる導光体等の遮蔽物を配置しないため、照射効率の低下を招くことなく、赤外線と共に出射される赤色光を簡単な構成で消すことができる。そして、本実施の形態のように赤外ＬＥＤ２の横に可視光ＬＥＤ４を並設する構成を採用すれば、これらの赤外ＬＥＤ２と可視光ＬＥＤ４を同じ回路基板上に実装することができる。   Moreover, in the vehicle infrared projector 1 according to the present embodiment, a shielding object such as a light guide that reduces the amount of light is not disposed between the infrared LED 2 and the condensing lens 3, which causes a reduction in irradiation efficiency. The red light emitted together with the infrared light can be eliminated with a simple configuration. And if the structure which arranges visible light LED4 side by side like infrared LED2 like this Embodiment is employ | adopted, these infrared LED2 and visible light LED4 can be mounted on the same circuit board.

尚、本実施の形態においては、車両前方に向かって出射される可視光は、ポジションランプやフォグランプ等の補助光として利用される。   In the present embodiment, visible light emitted toward the front of the vehicle is used as auxiliary light such as a position lamp and a fog lamp.

＜参考例１＞
次に、本発明の参考例１を図２に基づいて説明する。
< Reference Example 1 >
Next, Reference Example 1 of the present invention will be described with reference to FIG.

図２は本発明の参考例１に係る車両用赤外投光器の基本構成を示す平断面図であり、本図においては図１に示したものと同一要素には同一符号を付しており、以下、それらについての再度の説明は省略する。
FIG. 2 is a plan sectional view showing the basic configuration of the vehicle infrared projector according to Reference Example 1 of the present invention. In FIG. 2, the same elements as those shown in FIG. Hereinafter, the re-explanation thereof is omitted.

本参考例においては、可視光ＬＥＤ４を赤外ＬＥＤ２に対して斜めに配置し、その光出射方向前方に小口径の集光レンズ６を配置している。
In this reference example , the visible light LED 4 is disposed obliquely with respect to the infrared LED 2, and a condenser lens 6 having a small diameter is disposed in front of the light emitting direction.

而して、本参考例に係る車両用赤外投光器１においては、可視光ＬＥＤ４から出射される可視光は、集光レンズ６によって集光されて赤外ＬＥＤ２に向けて照射され、その反射光は赤外ＬＥＤ２から出射される赤外線と共に集光レンズ３によって集光されて車両前方へと照射される。
Thus, in the vehicle infrared projector 1 according to this reference example , the visible light emitted from the visible light LED 4 is collected by the condenser lens 6 and irradiated toward the infrared LED 2, and the reflected light thereof. Is condensed by the condenser lens 3 together with the infrared rays emitted from the infrared LED 2 and irradiated toward the front of the vehicle.

従って、本参考例においても、可視光が赤外線の照射範囲と同範囲に照射され、赤外ＬＥＤ２から赤外線と共に出射される赤色光が可視光によるマスク効果によって消されるため、前記実施の形態１と同様の効果が得られる。
Therefore, also in this reference example , visible light is irradiated in the same range as the infrared irradiation range, and the red light emitted from the infrared LED 2 together with the infrared light is extinguished by the mask effect by visible light. Similar effects can be obtained.

＜参考例２＞
次に、本発明の参考例２を図３に基づいて説明する。
< Reference Example 2 >
Next, Reference Example 2 of the present invention will be described with reference to FIG.

図３は本発明の参考例２に係る車両用赤外投光器の基本構成を示す側断面図であり、本図においては図１及び図２に示したものと同一要素には同一符号を付しており、以下、それらについての再度の説明は省略する。
FIG. 3 is a side sectional view showing a basic configuration of a vehicular infrared projector according to Reference Example 2 of the present invention. In this figure, the same elements as those shown in FIGS. 1 and 2 are denoted by the same reference numerals. In the following, a repetitive description thereof will be omitted.

本参考例においては、可視光ＬＥＤ４を赤外ＬＥＤ２に対して斜めに配置し、この可視光ＬＥＤ４の光出射方向前方に小口径の集光レンズ６を配設するとともに、赤外ＬＥＤ２の横に放物曲面状のリフレクタ７を配置している。
In this reference example , the visible light LED 4 is disposed obliquely with respect to the infrared LED 2, a small-diameter condenser lens 6 is disposed in front of the light emitting direction of the visible light LED 4, and the infrared LED 2 is placed next to the infrared LED 2. A parabolic curved reflector 7 is arranged.

而して、本参考例に係る車両用赤外投光器１においては、可視光ＬＥＤ４から出射される可視光は、集光レンズ６によって集光されて赤外ＬＥＤ２に向けて照射され、その反射光が赤外ＬＥＤ２から出射される赤外線と共にリフレクタ７によって反射して平行光として車両前方（図３の左方）へと照射される。
Thus, in the vehicle infrared projector 1 according to this reference example , the visible light emitted from the visible light LED 4 is collected by the condenser lens 6 and irradiated toward the infrared LED 2, and the reflected light thereof. Is reflected by the reflector 7 together with the infrared light emitted from the infrared LED 2 and is irradiated to the front of the vehicle (left side in FIG. 3) as parallel light.

従って、本参考例においても、可視光が赤外線の照射範囲と同範囲に照射され、赤外ＬＥＤ２から赤外線と共に出射される赤色光が可視光によるマスク効果によって消されるため、前記実施の形態１と同様の効果が得られる。
Therefore, also in this reference example , visible light is irradiated in the same range as the infrared irradiation range, and the red light emitted from the infrared LED 2 together with the infrared light is extinguished by the mask effect by visible light. Similar effects can be obtained.

＜実施の形態２＞
次に、本発明の実施の形態２を図４に基づいて説明する。
<Embodiment 2 >
Next, a second embodiment of the present invention will be described with reference to FIG.

図４は本発明の実施の形態２に係る車両用赤外投光器の基本構成を示す側断面図であり、本図においては図１〜３に示したものと同一要素には同一符号を付しており、以下、それらについての再度の説明は省略する。
FIG. 4 is a side sectional view showing the basic configuration of the vehicular infrared projector according to the second embodiment of the present invention. In this figure, the same elements as those shown in FIGS. In the following, a repetitive description thereof will be omitted.

本実施の形態においては、前記実施の形態１と同様に可視光ＬＥＤ４を赤外ＬＥＤ２の横に配置し、該可視光ＬＥＤ４の上方に小口径の集光レンズ６と反射板８を設置するとともに、赤外ＬＥＤ２の横に放物曲面状のリフレクタ７を配置している。   In the present embodiment, the visible light LED 4 is disposed beside the infrared LED 2 as in the first embodiment, and the small-diameter condenser lens 6 and the reflecting plate 8 are installed above the visible light LED 4. A parabolic curved reflector 7 is disposed beside the infrared LED 2.

而して、本実施の形態に係る車両用赤外投光器１においては、可視光ＬＥＤ４から出射される可視光は、集光レンズ６によって集光された後に反射板８によって反射されて赤外ＬＥＤ２に向けて照射され、その反射光が赤外ＬＥＤ２から出射される赤外線と共にリフレクタ７によって反射して平行光として車両前方（図４の左方）へと照射される。   Thus, in the vehicle infrared projector 1 according to the present embodiment, the visible light emitted from the visible LED 4 is collected by the condenser lens 6 and then reflected by the reflecting plate 8 to be reflected by the infrared LED 2. The reflected light is reflected by the reflector 7 together with the infrared light emitted from the infrared LED 2 and irradiated as parallel light toward the front of the vehicle (left side in FIG. 4).

従って、本実施の形態においても、可視光が赤外線の照射範囲と同範囲に照射され、赤外ＬＥＤ２から赤外線と共に出射される赤色光が可視光によるマスク効果によって消されるため、前記実施の形態１と同様の効果が得られる。又、本実施の形態のように赤外ＬＥＤ２の横に可視光ＬＥＤ４を並設する構成を採用すれば、これらの赤外ＬＥＤ２と可視光ＬＥＤ４を同じ回路基板上に実装することができる。   Therefore, also in the present embodiment, the visible light is irradiated in the same range as the infrared irradiation range, and the red light emitted from the infrared LED 2 together with the infrared light is extinguished by the mask effect by the visible light. The same effect can be obtained. Moreover, if the structure which arrange | positions visible light LED4 side by side like infrared LED2 like this Embodiment is employ | adopted, these infrared LED2 and visible light LED4 can be mounted on the same circuit board.

本発明に係る車両用赤外投光器は、前方監視システム（ナイトビジョン）の他、プリクラッシュセンサやドアミラーセンサ等、赤外線を用いる他の任意の装置やシステムに対して適用可能である。   The infrared projector for vehicles according to the present invention can be applied to other arbitrary devices and systems using infrared rays, such as a pre-crash sensor and a door mirror sensor, in addition to a forward monitoring system (night vision).

本発明の実施の形態１に係る車両用赤外投光器の基本構成を示す平断面図である。It is a plane sectional view showing the basic composition of the infrared projector for vehicles concerning Embodiment 1 of the present invention. 本発明の参考例１に係る車両用赤外投光器の基本構成を示す平断面図である。It is a plane sectional view showing the basic composition of the infrared projector for vehicles concerning reference example 1 of the present invention. 本発明の参考例２に係る車両用赤外投光器の基本構成を示す側断面図である。It is a sectional side view which shows the basic composition of the infrared projector for vehicles which concerns on the reference example 2 of this invention. 本発明の実施の形態２に係る車両用赤外投光器の基本構成を示す側断面図である。It is a sectional side view which shows the basic composition of the infrared projector for vehicles which concerns on Embodiment 2 of this invention. 特許文献１において提案された赤外投光器の構成図である。It is a block diagram of the infrared projector proposed in patent document 1. FIG. 特許文献２において提案された赤外投光器の構成図である。It is a block diagram of the infrared projector proposed in patent document 2. FIG. 特許文献３において提案された赤外投光器の構成図である。It is a block diagram of the infrared projector proposed in patent document 3. FIG.

符号の説明Explanation of symbols

１ 車両用投光器
２ 赤外ＬＥＤ（赤外発光素子）
３ 集光レンズ
４ 可視光ＬＥＤ（可視光発光素子）
５ リフレクタ
６ 集光レンズ
７ リフレクタ
８ 反射板 1 Vehicle projector 2 Infrared LED (Infrared light emitting device)
3 Condensing lens 4 Visible light LED (visible light emitting element)
5 Reflector 6 Condensing lens 7 Reflector 8 Reflector

Claims (2)

赤外発光素子から出射される赤外線を集光レンズ又はリフレクタを経て所定の方向に照射するよう構成された車両用赤外投光器において、
可視光を出射する可視光発光素子を前記赤外発光素子の横に配置し、
該可視光発光素子から出射される可視光をリフレクタによって反射させて前記赤外発光素子に向けて照射し、その反射光を前記赤外発光素子から出射される赤外光と共に集光レンズによって集光して同一方向へ照射するよう構成したことを特徴とする車両用赤外投光器。 In an infrared projector for a vehicle configured to irradiate infrared rays emitted from an infrared light emitting element in a predetermined direction through a condenser lens or a reflector,
A visible light emitting element that emits visible light is disposed beside the infrared light emitting element,
The visible light emitted from the visible light emitting element is reflected by a reflector and irradiated toward the infrared light emitting element, and the reflected light is collected by the condenser lens together with the infrared light emitted from the infrared light emitting element. An infrared projector for a vehicle configured to emit light and irradiate in the same direction. 赤外発光素子から出射される赤外線を集光レンズ又はリフレクタを経て所定の方向に照射するよう構成された車両用赤外投光器において、
可視光を出射する可視光発光素子を前記赤外発光素子の横に配置し、
該可視光発光素子から出射される可視光を集光レンズによって集光した後に反射板によって反射させて前記赤外発光素子に照射し、その反射光を前記赤外発光素子から出射される赤外線と共にリフレクタによって反射させて同一方向へ照射するよう構成したことを特徴とする車両用赤外投光器。
In an infrared projector for a vehicle configured to irradiate infrared rays emitted from an infrared light emitting element in a predetermined direction through a condenser lens or a reflector,
A visible light emitting element that emits visible light is disposed beside the infrared light emitting element,
It is reflected by the reflecting plate after condensed by the condenser lens visible light emitted from the visible light emitting element irradiating the infrared light emitting element is emitted and the reflected light from the front Symbol infrared light - emitting element An infrared projector for a vehicle, which is configured to irradiate in the same direction by being reflected by a reflector together with infrared rays.
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US11396986B2 (en) 2019-05-23 2022-07-26 Valeo North America, Inc. Apparatus and method for masking residual visible light from an infrared emission source

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CN105539270A (en) * 2015-12-29 2016-05-04 深圳华耀车灯科技有限公司 Self-adaptive LED automotive headlamp
CN106965740A (en) * 2017-03-27 2017-07-21 东莞市莱曼光电科技有限公司 A kind of double-colored temperature car light and decision method that environment is judged based on black light
US11417796B2 (en) 2019-12-03 2022-08-16 Lumileds Llc Light-emitting apparatus including a reflective cavity
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JP4214882B2 (en) * 2003-10-09 2009-01-28 市光工業株式会社 Night vision lamp for vehicle and vehicle outside mirror device
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JP4597788B2 (en) * 2005-06-16 2010-12-15 富士重工業株式会社 Infrared projector
JP5463095B2 (en) * 2008-09-08 2014-04-09 株式会社小糸製作所 Infrared light irradiation lamp for vehicles

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Publication number Priority date Publication date Assignee Title
US11396986B2 (en) 2019-05-23 2022-07-26 Valeo North America, Inc. Apparatus and method for masking residual visible light from an infrared emission source
US11821598B2 (en) 2019-05-23 2023-11-21 Valeo North America, Inc. Apparatus and method for masking residual visible light from an infrared emission source

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