Abstract: Provided is a method of producing a flexible cell unit enclosed by a border seal and filled with an electro-optic material. The flexible cell includes a first and a second substrate separated by a controlled distance maintained by spacers. The method includes providing two continuous sheets of flexible plastic material to form the first and second substrates and depositing an electro-optic material on at least one substrate. The electro-optic material is non-encapsulated, non-polymeric, and contains less than 1% polymerizable material. The method also includes pairing the first and second substrates while roll-filling the flexible cell with the electro-optic material using one or more lamination rollers so that the electro-optic material completely fills the controlled distance between the first and second substrates.

Abstract: Described is a kit, an optical insert assembly and a method for attaching an optical insert to a viewing lens of an eye-shielding device. The kit includes an optical insert with an outer perimeter, and a flexible border attachment element with an inner periphery area extending inward of the outer perimeter of the optical insert, and an outer periphery area extending outward of the outer perimeter of the optical insert, and having a first adhesive area for attachment to the optical insert and a second adhesive area for attachment to the viewing lens. When attached, the border attachment element defines a buffer zone spanning the inner periphery and outer periphery areas. The optical insert assembly includes the elements of the kits described herein, attached to a viewing lens of an eye-shielding device.

Abstract: Provided is a method of producing a flexible cell unit enclosed by a border seal and filled with an electro-optic material. The flexible cell includes a first and a second substrate separated by a controlled distance maintained by spacers. The method includes providing two continuous sheets of flexible plastic material to form the first and second substrates and depositing an electro-optic material on at least one substrate. The electro-optic material is non-encapsulated, non-polymeric, and contains less than 1% polymerizable material. The method also includes pairing the first and second substrates while roll-filling the flexible cell with the electro-optic material using one or more lamination rollers so that the electro-optic material completely fills the controlled distance between the first and second substrates.

Abstract: We describe a wide band variable transmission optical device having an electronically active cell comprising a guest-host mixture of a liquid crystal host and a dichroic guest dye material contained between a pair of plastic substrates. The liquid crystal host has an axis orientation that is alterable between a clear state orientation and a dark state orientation and the dichroic guest dye material includes one or more dichroic dyes. The optical device is characterized in that it exhibits a wide absorption band that is greater than 175 nm within a visible wavelength range of 400-700 nm, has a clear state transmission equal to or above 30% and a dark state transmission equal to or below 40%.

Abstract: We describe a wide band variable transmission optical device having an electronically active cell comprising a guest-host mixture of a liquid crystal host and a dichroic guest dye material contained between a pair of plastic substrates. The liquid crystal host has an axis orientation that is alterable between a clear state orientation and a dark state orientation and the dichroic guest dye material includes one or more dichroic dyes. The optical device is characterized in that it exhibits a wide absorption band that is greater than 175 nm within a visible wavelength range of 400-700 nm, has a clear state transmission equal to or above 30% and a dark state transmission equal to or below 40%.

Abstract: Described is a kit, an optical insert assembly and a method for attaching an optical insert to a viewing lens of an eye-shielding device. The kit includes an optical insert with an outer perimeter, and a flexible border attachment element with an inner periphery area extending inward of the outer perimeter of the optical insert, and an outer periphery area extending outward of the outer perimeter of the optical insert, and having a first adhesive area for attachment to the optical insert and a second adhesive area for attachment to the viewing lens. When attached, the border attachment element defines a buffer zone spanning the inner periphery and outer periphery areas. The optical insert assembly includes the elements of the kits described herein, attached to a viewing lens of an eye-shielding device.