公开(公告)号：US09316373B2

公开(公告)日：2016-04-19

申请号：US13075935

申请日：2011-03-30

申请人： Kazuki Okui ,  Akio Inoue ,  Tomoharu Yamazaki

发明人： Kazuki Okui ,  Akio Inoue ,  Tomoharu Yamazaki

IPC分类号： F21S8/10

CPC分类号： F21S48/115 ,  F21S41/141 ,  F21S41/24 ,  F21S43/14 ,  F21S43/237 ,  F21S43/245 ,  F21S43/249

摘要： A light guide includes a first incident portion at an end side thereof near a light source, a stepped portion disposed on a rear surface side thereof in an axial direction and wholly reflects a portion of guided light, and a radiating portion disposed on a front surface side thereof in the axial direction that radiates the wholly reflected light forward. The light guide guides light that is incident through the first incident portion from front to back within the light guide. The stepped portion is a plurality of generally triangular prisms formed continuous in an extension direction, and has, in a cross section that follows an extension axis of the light guide and is parallel to a lamp optical axis, a long first projection surface that extends in the extension direction and a short second projection surface that forms an apex angle with the first projection surface.

摘要翻译： 导光体包括在其靠近光源的端侧的第一入射部分，在轴向方向上设置在其后表面侧的台阶部分，并且完全反射一部分引导光，以及设置在前表面上的辐射部分 其沿轴向方向辐射全反射光向前。 光导引导光线从前到后引导入射穿过第一入射部分的光。 台阶部分是在延伸方向上连续形成的多个大致三角形的棱镜，并且在沿着导光体的延伸轴线并且与灯光轴平行的横截面中具有长的第一突起表面， 延伸方向和与第一投影表面形成顶角的短的第二投影表面。

公开(公告)号：US20110242831A1

公开(公告)日：2011-10-06

申请号：US13075935

申请日：2011-03-30

申请人： Kazuki Okui ,  Akio Inoue ,  Tomoharu Yamazaki

发明人： Kazuki Okui ,  Akio Inoue ,  Tomoharu Yamazaki

IPC分类号： F21V8/00

CPC分类号： F21S48/115 ,  F21S41/141 ,  F21S41/24 ,  F21S43/14 ,  F21S43/237 ,  F21S43/245 ,  F21S43/249

摘要： A light guide includes a first incident portion at an end side thereof near a light source, a stepped portion disposed on a rear surface side thereof in an axial direction and wholly reflects a portion of guided light, and a radiating portion disposed on a front surface side thereof in the axial direction that radiates the wholly reflected light forward. The light guide guides light that is incident through the first incident portion from front to back within the light guide. The stepped portion is a plurality of generally triangular prisms formed continuous in an extension direction, and has, in a cross section that follows an extension axis of the light guide and is parallel to a lamp optical axis, a long first projection surface that extends in the extension direction and a short second projection surface that forms an apex angle with the first projection surface.

摘要翻译： 导光体包括在其靠近光源的端侧的第一入射部分，在轴向方向上设置在其后表面侧的台阶部分，并且完全反射一部分引导光，以及设置在前表面上的辐射部分 其沿轴向方向辐射全反射光向前。 光导引导光线从前到后引导入射穿过第一入射部分的光。 台阶部分是在延伸方向上连续形成的多个大致三角形的棱镜，并且在沿着导光体的延伸轴线并且与灯光轴平行的横截面中具有长的第一突起表面， 延伸方向和与第一投影表面形成顶角的短的第二投影表面。