The invention provides a light projection device and a light projection device for a moving object, which can suppress the intensity unevenness generated by the projected light even when the light irradiated from a light source is scanned by a mirror part. The light projection device includes: a light source having plural light emission portions arranged side by side in a predetermined direction; a projection lens; and an optical scanner having a mirror portion which scans light passed through the projection lens in a direction that the light emission portions are aligned, and a drive source swinging the mirror portion. The mirror portion scans a scanning light, which is irradiated from each light emission portion and scanned by the mirror portion, to form an intensity distribution having a central valley part and peaks located on both sides of the valley part. The optical scanner scans the light irradiated from the light emission portions in a manner that at least a peak of an intensity distribution of scanning light of other light emission portion is located in the valley part of the intensity distribution.
本发明提供一种投光装置与移动体用投光装置,即便在利用镜部来扫描从光源照射的光的情况下,也可抑制所投影的光产生的强度的不均一。投光装置包括:光源,具有沿规定的方向排列配置的多个发光部;投影透镜;及光扫描器,具有将透过投影透镜的光在多个发光部排列的方向扫描的镜部、及使镜部摇动的驱动源,镜部以下述方式进行扫描,即:使从多个发光部各自照射且经镜部扫描的扫描光,成为具有中央的谷部分、及位于谷部分的两侧的波峰的强度分布,光扫描器构成为,以至少其他发光部的扫描光的强度分布的波峰位于扫描光的强度分布的谷部分的方式,来扫描从多个发光部照射的光。
LIGHT PROJECTION DEVICE AND LIGHT PROJECTION DEVICE FOR MOVING BODY
投光装置及移动体用投光装置
29.10.2021
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 / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21W Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend den Gebrauch oder Einsatz von Leuchten oder Beleuchtungssystem , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS / F21Y Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED |
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