To improve light extraction efficiency.SOLUTION: An optical system 100 comprises a light guide plate 1, a light controller 2, and a prism 3. The light guide plate 1 includes: a light incident surface 10 on which light is made incident; and a first surface 11 and a second surface 12 facing to each other. The second surface 12 is a light emission surface. The optical controller 2 collects light going toward the light incident surface 10 and emits the collected light to the light incident surface 10. The prism 3 is installed in the first surface 11 and reflects the light passing through the inside of the light guide plate 1 toward the second surface 12. The light guide plate 1 includes a direct light path in which light incident from the light incident surface 10 is directly reflected at the prism 3 and is emitted from the second surface 12. The light controller 2 refracts the light incident on the light incident surface 10, on a surface opposite to the light guide plate 1 and emits the refracted light to the light 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。【解決手段】光学システム100は、導光板1と、光制御体2と、プリズム3と、を備える。導光板1は、光が入射する入射面10、及び互いに対向する第1面11及び第2面12を有し、第2面12が光の出射面である。光制御体2は、入射面10に向かう光を集光し、集光した光を入射面10に出射する。プリズム3は、第1面11に設けられて、導光板1の内部を通る光を第2面12に向けて反射する。導光板1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から出射させるダイレクト光路を含む。光制御体2は、導光板1とは反対側の面で、入射面10に入射する光を屈折させて入射面10に出射する。【選択図】図1
OPTICAL SYSTEM, ILLUMINATION SYSTEM, DISPLAY SYSTEM, AND MOBILE OBJECT
光学システム、照明システム、表示システム、及び移動体
2023-11-24
Patent
Electronic Resource
Japanese
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 |
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