A light guide guides light emitted by a light source to a portion around an illumination target. The light guide includes a light incident portion that the light emitted by the light source enters; alight emitting portion that is provided around the illumination target and emits the light that has entered; and a light distributing portion that distributes the light that has entered from the lightsource directly toward the light emitting portion and has at least a curved surface shape. The light incident portion is arranged at a position facing a light emitting surface of the light source andhas a width so as to cover at least the light emitting surface of the light source.
本发明使照明对象物周围的光量变得均匀。导光体(50)具备:设于照明对象物的周围且供从光源射出的光射入的入光部(51);供射入至入光部(51)的光射出的出光部(56);以及将从光源射入的光直接分配到出光部(56)的方向并至少具有曲面形状的配光部(53)。入光部(51)配置于光源的光的出射面侧,并具有至少覆盖该光源的光的出射面的厚度。
Light guide and light emitting device
导光体以及发光装置
2020-09-15
Patent
Elektronische Ressource
Chinesisch
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / 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 |
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