PROBLEM TO BE SOLVED: To provide a lighting unit capable of suppressing unevenness and deterioration of illuminance upon enhancing light collection efficiency.SOLUTION: An initial stage of lens 22 closest to a light source 20 and having maximum positive power, among a plural stages of light condensing lenses 21, has: a partition wall part 221 configured to partition a storage space part 221a with projection toward a substrate 281 side on which the light source 20 is mounted, the storage space part storing the light source 20 within a range R from a synthetic focal point Pc regarding the plural stages of light condensing lenses 21 to the initial stage of lens 22; and a positioning part 222 provided at the partition wall part 221, and positioned by uneven fitting with respect to the substrate 281 on which the light source 20 is mounted.SELECTED DRAWING: Figure 2

    【課題】集光効率を高めた上で照度ムラ及び照度低下を抑制する照明ユニットの提供。【解決手段】複数段の集光レンズ21のうち、光源20と最も近接して最大の正パワーを与えられている初段レンズ22は、それら複数段の集光レンズ21に関する合成焦点Pcから初段レンズ22までの範囲Rにて光源20の収容される収容空間部221aを、光源20の実装される基板281側への突出により仕切っている仕切り壁部221と、仕切り壁部221に設けられ、光源20の実装される基板281に対して凹凸嵌合により位置決めされている位置決め部222とを、有している。【選択図】図2


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    Title :

    LIGHTING UNIT AND HEAD-UP DISPLAY DEVICE


    Additional title:

    照明ユニット及びヘッドアップディスプレイ装置


    Contributors:

    Publication date :

    2018-02-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS



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