Optical layer stack and method for manufacturing the same

US8587882B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Frank Wippermann · Meiningen, DE
• Jacques Duparre · Jena, DE
• Peter Dannberg · Jena, DE
• Andreas Braeuer · Schlieben, DE

Key dates

• Filing date: Dec 8, 2011
• Grant date: Nov 19, 2013
• Expiry date: Dec 8, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B7/025
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical layer stack having a first layer, a second layer, a first spacer part associated with the first layer and a second spacer part associated with the second layer, wherein the two spacer parts have groove and tongue for an engagement in a stacking direction of the optical layer stack in order to provide a connection between the first and the second spacer part and a spacing of the first and the second layer in stacking direction.