3M Innovative Properties Company

Larissa Zuravskaja

Kristina M Magnusson

Kenneth Jarefors

Britton G Billingsley

Joy L Manske

Louise L M Madsen

Sébastien LM Jacquier

Louise LM Madsen

Kenneth OR Jarefors

Curved, arcuately-bonded liquid-crystal cells that include substrates held together by an edge adhesive cured after the substrates were bent into a congruently curved configuration; methods of making such cells; and, switchable shutters and automatic darkening filters that include such cells.

Curved, arcuately-bonded liquid crystal cell and method of making

An automatic-darkening filterthat comprises a first polarizer, a second polarizer, a first liquid-crystal cell, and a sensor. The first polarizerhas a first polarization direction, and the second polarizerhas a second polarization direction. The liquid crystal cellis disposed between the first and second polarizersand contains first and second optically-transparent, flexible, glass layersandwith the liquid crystal layerbeing located between these layers. The sensordetects incident light and causes a signal to be sent, which causes molecular rotation within the liquid crystal layer. The inventive automatic-darkening filter is beneficial in that overall product weight can be reduced and the view field can be increased.

Curved automatic-darkening filter

Growing community of inventors

Borlänge, Sweden

Larissa Zuravskaja