Method of manufacturing a multilayer optical element

US11067727B2 · kind B2 · utility

Assignee

• Osram OLED GMBH · DE

Inventors

• Georg Roßbach · Regensburg, DE
• Hubert Halbritter · Dietfurt, DE

Key dates

• Filing date: Feb 28, 2019
• Grant date: Jul 20, 2021
• Expiry date: Feb 28, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29D11/0073
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method for manufacturing a multilayer optical element is disclosed. In an embodiment the method includes providing a substrate, applying a first optical layer by applying a first layer having a dielectric first material having a first refractive index, structuring the first layer by sectionally removing the first material and filling first interspaces with a dielectric second material having a second refractive index different from the first refractive index so that the second material has at least the same height as the first material, and applying at least a second optical layer by applying a second layer having the first material, structuring the second layer by sectionally removing the first material so that the first optical layer is exposed in second interspaces between second areas with the first material and filling the second interspaces with the second material so that the second material has at least the same height as the first material.