Lens, lens blank, and eyewear

US10423011B2 · kind B2 · utility

Assignee

• MITSUI CHEMICALS, INC. · JP

Inventors

• Ronald D. Blum · Roanoke, US
• Sophie Adams · Forest, US
• David Boyd · Roanoke, US
• Richard Clompus · Trinidad, US
• Mark Graham · Sarasota, US
• Joshua N. Haddock · Roanoke, US
• Robert Hall · Toronto, CA
• Venki Iyer · Roanoke, US
• William Kokonaski · Gig Harbor, US
• Charles Willey · Roanoke, US
• Yongping Wang · Zhejiang, CN
• Claudio Dalla Longa · Possagno, IT
• Tsuyoshi Kamibeppu · Nagoya, JP
• Akifumi Aono · Nagoya, JP
• Akihiro Muramatsu · Marugame, JP

Key dates

• Filing date: Dec 27, 2016
• Grant date: Sep 24, 2019
• Expiry date: Mar 23, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02J7/0042
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A lens includes a lens body, and an electro-active section (liquid crystals and a diffraction section) that is provided to a region of part of the lens body. The lens includes a pair of electrodes that are embedded in the lens body, that are electrically connected to a focal length modification section, that extend downward from an upper side end of the lens body, and that are disposed substantially parallel to each other spaced apart in a width direction orthogonal to an up-down direction of the lens body. Lower ends of the pair of electrodes are disposed spaced apart from the electro-active section in the up-down direction of the lens body.