LAMP UNIT

PROBLEM TO BE SOLVED: To provide a lamp unit including a reflection surface having a simple configuration, enabling a virtual image formed by reflection light reflected by the reflection surface to be virtually recognized as well as a light source when the light source is turned on, and preventing t...

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Bibliographische Detailangaben
Hauptverfasser: YAMAGUCHI SADAO, OKAWA YUICHI, UMEHARA KEIJI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a lamp unit including a reflection surface having a simple configuration, enabling a virtual image formed by reflection light reflected by the reflection surface to be virtually recognized as well as a light source when the light source is turned on, and preventing the light source itself from being visible from multiple directions when the light source is turned off.SOLUTION: A lamp unit 1 comprises: a light source 2 emitting light having divergence at a predetermined solid angle with respect to an optical axis X; an inner lens 10 controlling directional characteristics of the light emitted from the light source 2; a reflector 20 that includes a light reflection surface 21 extending generally in a perpendicular direction to the optical axis X of the light source 2 and formed of a mirror reflection surface; and an outer lens 30 disposed in front of the light source 2, the inner lens 10, and the reflector 20 so as to cover the light source 2, the inner lens 10, and the reflector 20. 【課題】反射面が単純な構成からなり、光源の点灯時には前記反射面で反射された反射光による虚像が形成されて光源と共に視認され、光源の非点灯時には該光源自体が多方向から見えることがないような灯具ユニットを提供することにある。【解決手段】灯具ユニット1は、出射光が光軸Xに対して所定の立体角で広がりを有する光源2と、光源2からの出射光の指向特性を制御するインナーレンズ10と、光源2の光軸Xに対して略垂直方向に延在する、鏡面反射面からなる光反射面21を有するリフレクタ20と、光源2、インナーレンズ10及びリフレクタ20の前方に、該光源2、インナーレンズ10及びリフレクタ20を覆うように配設されたアウターレンズ30を備えている。【選択図】図2