公开(公告)号：US20120218772A1

公开(公告)日：2012-08-30

申请号：US13404223

申请日：2012-02-24

Applicant: Yuki MITSUHASHI ,  Toru UMEDA

Inventor： Yuki MITSUHASHI ,  Toru UMEDA

IPC: F21V13/04

CPC classification number: G02B6/0045 ,  F21S43/14 ,  F21S43/239 ,  F21S43/243 ,  F21S43/249 ,  F21S43/315

Abstract: A lighting unit including a lens body can achieve luminous flux utilization efficiency equal to or greater than a conventional lighting unit even with a reduced width of the lens body. A vehicle lighting unit can be constituted by a plurality of the lighting units. The lighting unit can include an LED light source, and a lens body disposed in front of the LED light source so that light emitted from the LED light source can be incident thereon. The lens body can include a lens portion configured to receive the light from the LED light source to collect the light, a front surface including the lens portion, a rear surface opposite to the front surface, a first end surface functioning as a light exiting surface having a substantially rectangular shape greater in width than in thickness, and a second end surface opposite to the first end surface.

Abstract translation: 包括透镜体的照明单元即使具有减小的透镜体的宽度也能够实现等于或大于常规照明单元的光通量利用效率。 车辆照明单元可以由多个照明单元构成。 照明单元可以包括LED光源和设置在LED光源前面的透镜体，使得从LED光源发射的光可以入射到其上。 透镜体可以包括透镜部分，其配置为接收来自LED光源的光以收集光，包括透镜部分的前表面，与前表面相对的后表面，用作光出射表面的第一端表面 具有宽度大于厚度的大致矩形形状，以及与第一端面相对的第二端面。