To provide a virtual image display apparatus that is able to smoothly rotate an optical member or a virtual image display apparatus that is able to maintain for a long term the effect of inhibiting plastic deformation of an elastic member.SOLUTION: An HUD as a virtual image display apparatus includes: a movable mirror 41 formed so as to allow a change of an optical path of display light by rotating about a rotary shaft 44; a bearing stand 51R rotatably supporting the movable mirror 41; a stationary part 63 fixed to the bearing stand 51R; and an elastic displacement part 64 displaceable by elastic deformation. The elastic displacement part 64 has an elastic member 62 that elastically urges the movable mirror 41 in an axial direction. The movable mirror 41 has a projection 45 projecting along the axial direction from a side of the movable mirror 41 toward the bearing stand 51R. The HUD is formed to allow transition between an abutting state of the projection 45 on the bearing stand 51R so as to regulate movement of the movable mirror 41 that causes the elastic displacement part 64 to reach a plastic deformation area and an equilibrium state of the elastic displacement part 64 with a clearance of the projection 45 from the bearing stand 51R.SELECTED DRAWING: Figure 7

    【課題】光学部材が円滑に回動可能な虚像表示装置、又は弾性部材の塑性変形の抑制効果の長期的な維持が可能な虚像表示装置を提供する。【解決手段】虚像表示装置としてのHUDは、回転軸44のまわりに回動することにより、表示光による光路を変更可能に形成された可動鏡41と、可動鏡41を回動可能に支持する軸受台51Rと、軸受台51Rに対して固定される固定部63と、弾性変形により変位可能な弾性変位部64と、を有し、弾性変位部64が可動鏡41を軸方向に弾性的に付勢する弾性部材62と、を備える。可動鏡41は、可動鏡41側から軸受台51Rへ向かって軸方向に沿って突出する突起部45を有する。HUDは、弾性変位部64を塑性変形領域へ達せしめる可動鏡41の移動を規制するような突起部45の軸受台51Rとの当接状態と、突起部45が軸受台51Rとは間隔を空けた弾性変位部64の平衡状態とを、遷移可能に形成されている。【選択図】図7


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    Title :

    VIRTUAL IMAGE DISPLAY APPARATUS


    Additional title:

    虚像表示装置


    Contributors:

    Publication date :

    2021-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16C SHAFTS , Wellen / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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