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LENS AND FLASH

机译:镜头和闪光灯

摘要

The lens (3) is configured for reducing a divergence of light (L) from a light source (2) and comprises a light incidence side (31) with a plurality of Fresnel elements (32) and a light emission side (41) with a plurality of emission lenses (42). The Fresnel elements (32) and the emission lenses (42) are optically distinctly associated with one another. The fresnel elements (32) each have an incidence surface (33) which is convex and forms an incidence lens with a first focal length. The emission lenses (42) have a second focal length. In addition, the Fresnel elements (32) are each provided with a deflection surface (34) arranged optically directly after the incidence surface (33), which is configured to deflect the light (L) entering through the incidence side (31) towards the associated emission lens (42) by means of total reflection. The incidence surfaces (33) and the corresponding emission lenses (42) are positioned in relation to one another in their respective focal points (F) with a tolerance of max. 20% of the first and/or the second focal length.
机译:透镜(3)构造成用于减少来自光源(2)的光(L)的发散,并且包括具有多个菲涅耳元件(32)的光入射侧(31)和具有多个菲涅耳元件(32)的光出射侧(41)。多个发射透镜(42)。菲涅耳元件(32)和发射透镜(42)在光学上彼此明显地关联。菲涅耳元件(32)均具有凸出的入射表面(33),并形成具有第一焦距的入射透镜。发射透镜(42)具有第二焦距。另外,菲涅耳元件(32)每个都具有光学地直接布置在入射表面(33)之后的偏转表面(34),该偏转表面被构造成使通过入射侧(31)入射的光(L)偏转到入射面(31)。通过全反射使相关联的发射透镜(42)。入射表面(33)和相应的发射透镜(42)在它们各自的焦点(F)中相对于彼此定位,其公差为max。第一和/或第二焦距的20%。

著录项

  • 公开/公告号WO2017207497A1

    专利类型

  • 公开/公告日2017-12-07

    原文格式PDF

  • 申请/专利权人 OSRAM OPTO SEMICONDUCTORS GMBH;

    申请/专利号WO2017EP62909

  • 发明设计人 SCHWALENBERG SIMON;

    申请日2017-05-29

  • 分类号G02B19;F21V5;G02B27/09;

  • 国家 WO

  • 入库时间 2022-08-21 12:46:57

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