GLASS BODY

• Main Author: INAOKA DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 04.08.2023
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LADDERS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

To provide a glass body capable of reducing a visible light reflectance on a glass surface side while maintaining high heat shielding performance.SOLUTION: A glass body comprises: a glass plate 1 having a first surface 11, and a second surface 12 opposite to the first surface 11; and a Low-E film 20 laminated on one of the first surface 11 and the second surface 12. The Low-E film 20 includes: a low radiation layer 23 composed of a metal layer containing silver as a main component; a first absorption layer 22 composed of a non-oxidized metal layer adjacent to a plate surface side of the low radiation layer 23 and having visible light absorption capability; and a second absorption layer 24 composed of a metal layer adjacent to a side opposite to a plate surface of the low radiation layer 23. A first film thickness W1, which is the thickness of the first absorption layer 22, is greater than a second film thickness W2, which is the thickness of the second absorption layer 24.SELECTED DRAWING: Figure 2 【課題】高い遮熱性能を維持しつつガラス面側の可視光反射率を低減できるガラス体を提供する。【解決手段】第１面１１と、当該第１面１１とは反対側の第２面１２と、を有するガラス板１と、第１面１１及び第２面１２の何れか一方の板面に積層されたＬｏｗ－Ｅ膜２０と、を備え、Ｌｏｗ－Ｅ膜２０は、銀を主成分とする金属層で構成される低放射層２３と、当該低放射層２３の板面の側に隣接する非酸化金属層で構成され可視光吸収能を有する第一吸収層２２と、当該低放射層２３の板面とは反対側に隣接する金属層で構成される第二吸収層２４と、を含み、第一吸収層２２の厚みである第一膜厚Ｗ１が第二吸収層２４の厚みである第二膜厚Ｗ２よりも大きい。【選択図】図２