Polight As

Sintef

Frode Tyholdt

Ib-Rune Johansen

Dag Thorstein Wang

Wilfred Edwin Booij

Karl Henrik Haugholt

Vladimir Kartashov

Lars Henriksen

Morten Eliassen

Andreas Vogl

Thor Bakke

Jon Herman Ulvensøen

Jon Herman Ulvensoen

Dag Torstein Wang

Johansen Ib-Rune

The present invention relates to an actuator for moving a rigid element, e.g. an optical element such as mirror, the element being mechanically coupled to a frame with a bendable coupling, wherein actuator elements are mounted on said coupling between the frame and element, the coupling and actuator elements being adapted to provide a movement to the element when subject to signal from a signal generator.

Actuator having two piezoelectric elements on a membrane

The present invention relates to an actuator for moving a rigid element, e.g. an optical element such as mirror (), the element being mechanically coupled to a frame () with a bendable coupling (A), wherein actuator elements (A,B) are mounted on said coupling between the frame and element, the coupling and actuator elements being adapted to provide a movement to the element when subject to signal from a signal generator.

Fabry-perot interferometer with piezoelectric actuator contracting in radial direction on membrane

The present invention provides method steps for manufacturing an assembly of adjustable lenses on a wafer. The method steps provide an easy manufacturing of such lenses, minimizing the cost of assembly, and at the same time provide a solution for mass production of compact adjustable lenses for use in mobile phones, etc.

Method for manufacturing adjustable lens

The present invention is related to a lens assembly comprising a flexible lens body () inside a cavity bounded by a sidewall () and a first transparent cover (), and a second transparent cover (), wherein both covers () are in contact with respective surfaces of the lens body (). Piezo electric elements () shapes the lens body () when activated, thereby adjusting the focal length of the lens assembly.

Flexible lens assembly with variable focal length

The invention relates to an optical element having adjustable focal length, and a method for producing an optical element. The optical element comprising a first transparent layer and a transparent soft polymer having a chosen refractive index situated thereon, said layer being made from a material having a chosen flexibility, e.g. a thin glass layer, the optical element also being provided with an actuator for applying a force upon said flexible layer, said force being essentially symmetric relative to said axis thus bending the layer providing a lens surface and providing a curved refractive surface.

Polymer lens

The present invention provides a solution for designing a compact adjustable lens assembly, wherein a circular shaped piezoelectric crystal is bending a thin glass cover, thereby providing a shift of focal length of the lens assembly.

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Oslo, Norway

Frode Tyholdt