To provide a virtual image display device that substantially simultaneously displays virtual images at a plurality of projection distances, and a head-up display device including the same.SOLUTION: A virtual image display device 20 comprises: a display element 21; a projection optical system 22; a rotating body 23; and a virtual image forming optical system 24. The projection optical system 22 enlarges an image formed on the display element 21. The rotating body 23 is a rotating body having a spiral outer edge when viewed from a rotation shaft, has a diffusion screen 29 arranged on a side face thereof, and rotates to sequentially arrange diffusion screens 29 different in a position in an optical axis direction at an image forming position of the projection optical system 22. The virtual image forming optical system 24 converts an image on the diffusion screen 29 and forms virtual images at projection distances corresponding to the positions in the optical axis direction of the diffusion screen 29.SELECTED DRAWING: Figure 3

    【課題】複数の投影距離に虚像を実質的に同時に表示する虚像表示装置、およびこれを備えたヘッドアップディスプレイ装置を提供する。【解決手段】虚像表示装置20は、表示素子21、投影光学系22、回転体23、および虚像形成光学系24を備える。投影光学系22は、表示素子21に形成された像を拡大する。回転体23は、回転軸から視た外縁が螺旋状の回転体であって、側面に拡散スクリーン29を配置し、回転することで投影光学系22の結像位置に、光軸方向の位置が異なる拡散スクリーン29を順次配置させる。虚像形成光学系24は、拡散スクリーン29上の像を変換し、拡散スクリーン29の前記光軸方向の位置に対応した投影距離で、虚像を形成する。【選択図】図3


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    Title :

    VIRTUAL IMAGE DISPLAY DEVICE AND HEAD-UP DISPLAY DEVICE


    Additional title:

    虚像表示装置、およびヘッドアップディスプレイ装置


    Contributors:

    Publication date :

    2020-04-09


    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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