To provide an optical system, an illuminating system, a display system, and a moving body that can improve extraction efficiency of light.SOLUTION: A light guide member 1 comprises an incident surface 10 on which light is incident, and a first surface 11 and a second surface 12A opposed to each other. The second surface 12A is an emitting surface for the light. A prism 3 is provided in the first surface 11. The prism 3 reflects the light passing through the inside of the light guide member 1, toward the second surface 12A. The light guide member 1 includes a direct light path L1. The direct light path L1 is a light path in which first light incident from the incident surface 10 is directly reflected by the prism 3 and emitted from the second surface 12A. A normal line L22 of the second surface 12A is inclined with respect to an optical axis of the first light incident on the second surface 12A in the direct light path L1.SELECTED DRAWING: Figure 13

    【課題】光の取り出し効率の向上を図ることのできる光学システム、照明システム、表示システム及び移動体を提供する。【解決手段】導光部材1は、光が入射する入射面10、並びに互いに対向する第1面11及び第2面12Aを有している。第2面12Aは、光の出射面である。プリズム3は、第1面11に設けられている。プリズム3は、導光部材1の内部を通る光を第2面12に向けて反射する。導光部材1は、ダイレクト光路L1を含む。ダイレクト光路L1は、入射面10から入射した第1光をプリズム3にて直接反射して第2面12から出射させる光路である。第2面12Aの法線L22は、ダイレクト光路L1で第2面12Aに入射する第1光の光軸に対して傾斜している。【選択図】図13


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    Title :

    OPTICAL SYSTEM, ILLUMINATING SYSTEM, DISPLAY SYSTEM, AND MOVING BODY


    Additional title:

    光学システム、照明システム、表示システム及び移動体


    Contributors:

    Publication date :

    2024-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / 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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