To provide a highly manufacturable backlight unit a head-up display including it.SOLUTION: A backlight unit includes: a board 50 including a packaged light source and a first positioning hole 60; a heat sink 53 that radiates heat of the light source and includes a second positioning hole 61; and a lens 51 that condenses rays from the light source, and includes positioning pins 65 successively inserted into the first positioning hole 60 and the second positioning hole 61. The positioning pins 65 include a thick pin part 65a; a thin pin part 65b; and a tapered part 65c, and includes the thin pin part 65b, the tapered part 65c, and the thick pin part 65a in this order from the tip side. The second positioning hole 61 includes a thick hole part 61a and a thin hole part 61b. The lens 51 is positioned relative to the board 50 by insertion of the thick pin part 65a into the first positioning hole 60, and is positioned relative to the heat sink 53 by insertion of the thin pin part 65b into the thin hole part 61b.SELECTED DRAWING: Figure 5


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    Titel :

    バックライトユニット及びヘッドアップディスプレイ


    Erscheinungsdatum :

    2021-05-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / 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 / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen