公开(公告)号：US20170059131A1

公开(公告)日：2017-03-02

申请号：US15220738

申请日：2016-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun CHOI ,  Cheoul Young KIM ,  Keun Bum LEE ,  Seung Jae LEE ,  Young Chol LEE ,  Yae Kyung SON

IPC: F21V13/04 ,  F21V7/06 ,  F21V5/04 ,  F21V7/00

CPC classification number: F21V13/04 ,  F21V5/04 ,  F21V5/046 ,  F21V7/0033 ,  F21V7/0091 ,  F21V7/06 ,  G02B3/00

Abstract: Embodiments of the present disclosure relate to a direct-type reflective diffusion lens and a lighting installation including the reflective diffusion lens. The reflective diffusion lens includes a first reflective surface concave and having a longitudinal cross-section with a parabola shape or normal distribution shape to totally reflect incident light, a bottom surface comprising a light incident surface concave toward the first reflective surface, and a second reflective surface having a longitudinal cross-section inclined by a first angle with respect to a central axis of the lens to totally reflect incident light and a refractive surface connecting the first reflective surface with the bottom surface and comprising a first refractive surface having a longitudinal cross-section inclined by a second angle with respect to the central axis and a second refractive surface having a longitudinal cross-section inclined by a third angle with respect to the central axis.

Abstract translation: 本公开的实施例涉及直接型反射扩散透镜和包括反射漫射透镜的照明装置。 反射扩散透镜包括第一反射表面凹入部，具有抛物线形状或正常分布形状的纵向截面以全反射入射光，底表面包括朝向第一反射表面凹入的光入射表面，以及第二反射面 表面具有相对于透镜的中心轴线倾斜第一角度的纵向横截面，以全反射入射光和将第一反射表面与底面连接的折射表面，并且包括具有纵向截面的第一折射表面， 相对于中心轴线倾斜第二角度的第二折射表面和具有相对于中心轴线倾斜第三角度的纵向截面的第二折射表面。