To provide a mirror unit that can prevent distortion of a mirror plane, and a head-up display device.SOLUTION: A mirror unit reflecting display light from a display unit on a windshield that is an example of a projection member comprises: a concave mirror that includes a mirror plane reflecting the display light; and a concave mirror holder 35 that holds the concave mirror and is formed of resin. The concave mirror holder 35 includes positioning concave parts 36a to 36c and adhesive surface parts 37a to 37h that are examples of contact parts in contact with the concave mirror, and weld lines WL1, WL2 that are formed at positions off the positioning concave parts 36a to 36c and adhesive surface parts 37a to 37h.SELECTED DRAWING: Figure 9

    【課題】鏡面の歪みを抑制することができるミラーユニット及びヘッドアップディスプレイ装置を提供する。【解決手段】表示部からの表示光を投射部材の一例であるフロントガラスに反射させるミラーユニットは、表示光を反射する鏡面を含む凹面鏡と、凹面鏡を保持し、樹脂により形成される凹面鏡ホルダ35と、を備える。凹面鏡ホルダ35は、凹面鏡に接触する接触部の一例である位置決め凹部36a〜36c及び接着面部37a〜37hと、位置決め凹部36a〜36c及び接着面部37a〜37hから外れた位置に形成されるウエルドラインWL1,WL2と、を備える。【選択図】図9


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    Title :

    MIRROR UNIT AND HEAD-UP DISPLAY DEVICE


    Additional title:

    ミラーユニット及びヘッドアップディスプレイ装置


    Contributors:

    Publication date :

    2019-08-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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