GAS BARRIER ALUMINUM DEPOSITION FILM AND PREPARATION METHOD THEREOF

    公开(公告)号:EP4105352A1

    公开(公告)日:2022-12-21

    申请号:EP20919151.9

    申请日:2020-11-05

    摘要: In a gas-barrier aluminum deposition film according to one embodiment of the present invention, a seed coating layer containing functional groups of at least one type selected from among a hydroxyl group (-OH), an amine group (-NH), and a carboxylic acid group (-COOH) is formed on a thermoplastic plastic base film to form a seed molecular layer that enables uniform deposition of aluminum, such as AlOx or AINx, through chemical reaction, on a surface of the coating layer, with aluminum atoms vaporized at the initial stage of aluminum deposition, thereby inducing uniform deposition of an aluminum layer to be subsequently deposited. Therefore, it is possible to provide a deposited film having superior oxygen and water vapor barrier properties compared to existing aluminum deposition films.

    PLASTIC SUBSTRATE ND FILTER AND PLASTIC SUBSTRATE ND FILTER FOR USE IN EYEGLASSES

    公开(公告)号:EP3968083A1

    公开(公告)日:2022-03-16

    申请号:EP20822280.2

    申请日:2020-06-05

    发明人: SUZUKI, Ryosuke

    摘要: Provided are a ND filter and a spectacle ND filter that have a base made of plastic and that have excellent durability. The ND filter has a base made of plastic, and a light absorbing film having a plurality of layers is provided on at least one surface of the base. The light absorbing film includes one or more NiO x layers made of NiO x , x being not less than 0 and not greater than 1, and includes a sandwich structure portion which is provided on an opposite side of at least one of the NiO x layers from the base and in which a reverse stress layer is sandwiched between silica compound layers.