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 12 opposed to each other. The second surface 12 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 12. The light guide member 1 includes a direct light path L1. The direct light path L1 is a light path for allowing the light incident from the incident surface 10 to be directly reflected by the prism 3 and emitted from the second surface 12. An optical axis Ax1 of the light incident from the incident surface 10 is inclined with respect to the first surface 11 in such a manner that a distance to the first surface 11 becomes smaller as it gets away from the incident surface 10.SELECTED DRAWING: Figure 1

    【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12を有している。第2面12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。入射面10から入射する光の光軸Ax1は、入射面10から離れるほど第1面11までの距離が小さくなるように、第1面11に対して傾斜している。【選択図】図1


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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 :

    2021-02-22


    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 / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von...



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