WINDSHIELD, HEAD-UP DISPLAY, MOBILE VEHICLE, AUTOMOBILE, AND METHOD OF MANUFACTURING WINDSHIELD

To miniaturize a projection device of a head-up display.SOLUTION: A windshield is projected with image light from a projection device. The windshield comprises: a transparent plate; and a holographic element held by the transparent plate. The holographic element functions as a concave mirror curved...

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Bibliographische Detailangaben
1. Verfasser:	ICHIKAWA NOBUHIKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES JOINING GLASS TO GLASS OR OTHER MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	To miniaturize a projection device of a head-up display.SOLUTION: A windshield is projected with image light from a projection device. The windshield comprises: a transparent plate; and a holographic element held by the transparent plate. The holographic element functions as a concave mirror curved in a horizontal direction with respect to the image light. A curvature radius in optical design of the concave mirror in the horizontal direction is less than a curvature radius of the transparent plate in the horizontal direction.SELECTED DRAWING: Figure 2 【課題】ヘッドアップディスプレイにおいて投射装置を小型化する。【解決手段】ウインドシールドは、投射装置から画像光を投射される。ウインドシールドは、透明板と、透明板に保持されたホログラム素子と、を含む。ホログラム素子は、画像光に対し、水平方向に湾曲した凹面鏡として機能する。凹面鏡の水平方向における光学設計上の曲率半径は、透明板の水平方向における曲率半径よりも小さい。【選択図】図２