The present invention addresses the problem of easily adjusting the size of a light-emitting region in a lens structure. In order to solve the problem, the lens structure 100 for the vehicle lamp body is provided with a light-emitting part 120 and a base part 110. The light-emitting section (120) extends in the Z direction, and has a light-emitting surface (122) on an end surface on the Y + direction side, and a light-emitting back surface (121) on an end surface on the Y-direction side. The base section (110) guides light to an end section of the light-emitting section (120) in the Z + direction. The light-emitting unit (120) is provided with: an introduction reflection surface (50) that totally reflects light from the base unit (110) into parallel light in the Z-direction; and back-side reflective surfaces 65 provided in parallel in the Z direction on the light-emitting back surface 121. Each of the back-side reflecting surfaces (65) is inclined with respect to the Z direction in the plane perpendicular direction, and the parallel light from the introduction reflecting surface (50) is totally reflected in the Y + direction. The light-emitting surface (122) emits light from the back-side reflective surface (65).

    本发明要解决的问题在于容易调节透镜结构中的发光区域的大小。为了解决上述问题,车辆用灯体用透镜结构100具备发光部120和基部110。发光部120在Z方向上延伸,在Y+方向侧的端面具有发光面122,并且在Y‑方向的端面具有发光背面121。基部110将光引导至发光部120的Z+方向的端部。发光部120具备:导入反射面50,使来自基部110的光全反射为朝向Z‑方向的平行光;及,背侧反射面65,在发光背面121中沿着Z方向并列设置。各背侧反射面65的面垂直方向相对于Z方向倾斜,使来自导入反射面50的平行光向Y+方向全反射。发光面122使来自背侧反射面65的光射出。


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    Title :

    Vehicle lamp body


    Additional title:

    车辆用灯体


    Contributors:

    Publication date :

    2024-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / 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 / 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



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