Electrowetting optical devices and methods for making the same

US12204091B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Jerome René Broutin · Hameau du Grand Bilieu, FR
• Benjamin Jean-Baptiste Francois Burger · Val-de-Reuil, FR
• Aude Contet · Charenton-le-Pont, FR
• Géraldine Denise Juliette Malet-Vasseur · Villeurbanne, FR
• Nicolas Gilbert Jose Samper · Saint-André-la-Côte, FR

Key dates

• Filing date: Jun 24, 2020
• Grant date: Jan 21, 2025
• Expiry date: Nov 18, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2063/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Electrowetting optical devices can comprise a first electrode at least partially circumscribing a first optical window and a second electrode at least partially circumscribing a second optical window. The second optical window may be aligned with the first optical window in a direction of the optical axis. A central region may be defined by a projection of a footprint of the second optical window. An interface between a first liquid and a second liquid that may be disposed within a containment region may form a lens. In some embodiments, a thickness of a second dielectric portion at least partially circumscribing the central region may be greater than a thickness of a thirst dielectric portion within the central region. In some embodiments, a capacitance per area of the device upon application of a maximum operating voltage may be in a range from about 0.1 pF/mm2 to about 3.5 pF/mm2.