VEHICULAR LIGHTING DEVICE
PROBLEM TO BE SOLVED: To simplify the structure of a vehicular lighting device.SOLUTION: The light 42, which is emitted from a light source 22 and reaches a reflecting surface 34 of a reflector 18, is reflected by the reflecting surface 34 toward a translucence panel (44). A part of the light incide...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To simplify the structure of a vehicular lighting device.SOLUTION: The light 42, which is emitted from a light source 22 and reaches a reflecting surface 34 of a reflector 18, is reflected by the reflecting surface 34 toward a translucence panel (44). A part of the light incident on a translucence layer 36 of a translucence panel 16 is reflected to the reflector 18 side (46). The remainder is transmitted through the translucence layer 36 and a transparent layer 38, and is scattered in a scattering layer 40 to be emitted to the outer side of a light guide part 12 (48). That is, the light emitted from the light source 22, while being repeatedly reflected inside the light guiding part 12, travels in a longitudinal direction thereof, and a part of the light, while being scattered, is emitted outside the light guide section 12. Thereby, uniform light is emitted from the translucence panel 16.
【課題】車両用照明装置の構造を簡単にすることを目的とする。【解決手段】光源22から発せられ、リフレクタ18の反射面34に到達した光42は、反射面34で反射して半透過パネルに向かう(44)。半透過パネル16の半透過層36に入射した光の一部はリフレクタ18側に反射する(46)。その残りは、半透過層36および透過層38を透過し、散乱層40で散乱されて導光部12の外側に放射される(48)。すなわち、光源22から発せられた光は、導光部12の内側で反射を繰り返しながらその長手方向に進行すると共に、その光の一部が散乱を受けながら導光部12の外側に放射される。これによって、半透過パネル16からは一様に光が放射される。【選択図】図4 |
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