公开(公告)号：US20150070870A1

公开(公告)日：2015-03-12

申请号：US14517225

申请日：2014-10-17

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Daniel Dias ,  Ville Kettunen ,  Markus Rossi

IPC: G02B27/30 ,  G02B5/18 ,  G03B15/05 ,  F21V5/00

CPC classification number: G02B27/30 ,  F21V5/00 ,  F21V5/002 ,  F21V33/0052 ,  G02B5/18 ,  G02B5/1885 ,  G03B15/05

Abstract: An illumination system including at least one light source such as an electroluminescent element, e.g. a light emitting diode (LED), and at least one optical element whose surface is structured by diffraction and/or refraction type optical microstructures. In order to shape the beam, the optical element includes at least two sections whose optical microstructures and therefore optical properties are different from one another. The pattern of the microstructures in each of the at least two sections is, at least over a predetermined angular range, rotationally symmetric with respect to the optical axis or another symmetry axis.

Abstract translation: 一种照明系统，包括至少一个光源，例如电致发光元件，例如， 发光二极管（LED），以及表面由衍射和/或折射型光学微结构构成的至少一个光学元件。 为了形成光束，光学元件包括至少两个部分，其光学微结构因此光学性质彼此不同。 所述至少两个部分中的每一个中的微结构的图案至少在预定角度范围内相对于光轴或另一对称轴线旋转对称。