To achieve a windshield display device that can suppress a reflected image of a light-emitting port without providing another layer such as an antireflection layer on a windshield or a transparent screen.SOLUTION: A windshield display device is configured to project image light from a projector 2 disposed in a dashboard D onto a transparent screen 1 disposed to overlap a windshield, and to allow an image to be visible for an occupant, in which the projector 2 is disposed in such a manner that at least a projection lens 21 is located in a region different from a region D1 where regular reflection occurs in the dashboard D. Assumed that regular reflection beams are present which are linear beams directed from upper and lower ends of an eye box EB of an occupant toward upper and lower ends of the windshield and reflected by the windshield, the region D1 where the regular reflection occurs is a region inside an outline drawn by connecting intersections of the regular reflection beams with the dashboard D.SELECTED DRAWING: Figure 1

    【課題】ウィンドシールドまたは透明スクリーンに反射防止層等の他の層を設けずに、射出口の映り込みを抑制できるウィンドシールド表示装置を実現する。【解決手段】ウィンドシールドに重ねて配置される透明スクリーン1に、ダッシュボードDに配置されたプロジェクター2から映像光を投写し、乗員に映像を視認させるウィンドシールド表示装置において、プロジェクター2は、少なくとも投写レンズ21がダッシュボードDのうち正反射発生領域D1とは異なる領域に位置するように配置する。正反射発生領域D1は、乗員のアイボックスEBの上下端からウィンドシールドの上下端に向かう直線状の光が、ウィンドシールドで正反射した光である正反射光が存在すると仮定したとき、ダッシュボードDのうち正反射光との交点同士を繋ぐことで生じる外郭の内側の領域である。【選択図】図1


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    Title :

    WINDSHIELD DISPLAY DEVICE


    Additional title:

    ウィンドシールド表示装置


    Contributors:

    Publication date :

    2021-02-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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