Lens assembly for optical image stabilization and focus adjustment

US11231528B2 · kind B2 · utility

Assignee

• poLight ASA · NO

Inventors

• Pierre Craen · Embourg, BE
• Vladimir Kartashov · Horten, NO
• Janne Tapani Kilpinen · Toijala, FI
• Nicolas Tallaron · Val-de-Reuil, FR
• Lars Henriksen · Ny Frederiksdal, DK

Key dates

• Filing date: Jun 28, 2018
• Grant date: Jan 25, 2022
• Expiry date: Oct 6, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B26/08
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to an adjustable or tuneable lens assembly where a deformable, non-fluid lens body is sandwiched between a bendable lens cover and a back window to form a lens. The lens assembly has an actuator system with a plurality of individually addressable actuators for applying force to the lens cover in direction along the optical axis to change an overall shape of the lens. The actuator system has a focus adjustment mode to adjust the optical power of the lens and an optical image stabilisation mode, which are configured to operate simultaneously by addressing each actuator to apply a force being at least substantially a sum of the forces that would be applied in these modes.