A vehicle illumination device (21) provided by the present invention, includes a light source (24) and a long light-guide body (25) that has one end disposed adjacent to the light source (24), extends linearly from the one end along a direction in which light moves therethrough, and emits light from a linear light-emitting surface (32), wherein the light-guide body (25) has protrusions (34) formed therein that are arranged along the longitudinal direction at the rear side of the light-emitting surface (32) and that protrude in a direction orthogonal to the direction in which light moves through the light-guide body (25). The widths (W1-W12) of the protrusions (34) vary in accordance with the distance from the light source (24). Provided is the vehicle illumination device that can achieve light emission with uniform luminance along the longitudinal direction, while an increase in light-guide body productivity is also achieved.
本发明提供一种车辆照明装置。车辆照明装置(21)具有光源(24)和长形的导光体(25),所述长形的导光体(25)从与光源(24)相邻配置的一端沿光的进入方向呈线形延伸,从线形的发光面(32)照射光,在导光体(25)上形成有凸部(34),该凸部(34)在发光面(32)的背面上沿长度方向排列,且沿与光的进入方向正交的方向延伸。凸部(34)的宽度(W1~W12)按距光源(24)的距离而变化。据此,能一边提高导光体的生产能力一边实现在长度方向上均匀亮度的发光。
VEHICLE ILLUMINATION DEVICE AND VEHICLE DOOR
车辆照明装置和车门
2021-04-13
Patent
Elektronische Ressource
Chinesisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen |
ILLUMINATION DEVICE, DOOR TRIM, VEHICLE DOOR, AND VEHICLE
Europäisches Patentamt | 2020
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