METHOD FOR MANUFACTURING OPTICAL FILM

• Main Authors: KADOMI MASAAKI, YAMAGUCHI YOSHIMASA
• Format: Patent
• Language: English; Japanese
• Published: 30.04.2015
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; GLASS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

PROBLEM TO BE SOLVED: To provide an optical film that has a suppressed warpage and has a substrate of a glass film having thickness of 200 μm or less.SOLUTION: An optical film 1 includes a translucent glass film 11 and a first and second inorganic films 12 and 13 of an optical function. The glass film 11 has thickness of 200 μm or less. The first inorganic film 12 of the optical function is formed on a surface 11a of one side of the glass film 11. The second inorganic film 13 of the optical function is formed on a surface 11b of the other side of the glass film 11. 【課題】厚みが２００μｍ以下のガラスフィルムを基材とした光学フィルムであって、反りの抑制された光学フィルムを提供する。【解決手段】光学フィルム１は、透光性のガラスフィルム１１と、第１及び第２の無機光学的機能膜１２，１３とを備えている。ガラスフィルム１１の厚みは、２００μｍ以下である。第１の無機光学的機能膜１２は、ガラスフィルム１１の一方の表面１１ａの上に形成されている。第２の無機光学的機能膜１３は、ガラスフィルム１１の他方の表面１１ｂの上に形成されている。【選択図】図１