OPTICAL ARTICLE COATED WITH ANTIREFLECTION OR REFLECTIVE COATING COMPRISING ELECTRICALLY CONDUCTIVE FILM BASED ON TIN OXIDE, AND FABRICATION METHOD

• Main Authors: CONTE DOMINIQUE, DELPHINE PASSARD, JEAN-LOUIS SIRJEAN, KARIN SCHERER
• Format: Patent
• Language: English; Japanese
• Published: 05.03.2020
• Subjects: 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; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

To provide an optical article having antistatic and antireflection or reflective properties.SOLUTION: The present invention relates to an optical article having antistatic and antireflection or reflective properties, which comprises a substrate having at least one main surface coated with an antireflection or reflective coating. The coating comprises at least one electrically conductive layer comprising at least 30% tin oxide (SnO) by weight relative to the total weight of the electrically conductive layer. The electrically conductive layer is deposited by ion-assisted deposition. The substrate has a water absorptivity of 0.6% or more by weight relative to the total weight of the substrate, where the water absorptivity is measured after pre-drying the substrate and then storing for 800 hours in a chamber under the conditions of 50°C, 100% relative humidity and the atmospheric pressure.SELECTED DRAWING: None 【課題】帯電防止および反射防止または反射特性を持つ光学物品を提供することを目的とする。【解決手段】本発明は帯電防止および反射防止または反射特性を持つ光学物品に関係し、反射防止または反射コーティングが塗工された少なくとも１つの主表面を持つ基材を含み、前記コーティングが導電層の全重量に対して重量で少なくとも３０％の酸化スズ（ＳｎＯ３）を含む少なくとも１つの導電層を含有し、前記導電層はイオン−アシスト溶着により堆積されていて、さらに前記基材が前記基材の全重量に対して重量で０．６％以上の水分吸収率を持ち、水分吸収率は前記基材を予備乾燥し次いで５０℃で相対湿度１００％および大気圧下のチャンバー内で８００時間保管後に測定されている。【選択図】なし