IG WINDOW UNIT INCLUDING DOUBLE SILVER COATING HAVING INCREASED SHGC TO U-VALUE RATIO, AND CORRESPONDING COATED ARTICLE FOR USE IN IG WINDOW UNIT OR OTHER WINDOW

• Main Authors: BOYCE BRENT, WUILLAUME FRANCIS
• Format: Patent
• Language: English; Korean
• Published: 04.05.2016
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

단열 유리(IG) 윈도우 유닛은 제1기판 및 제2기판, 및 기판 중 하나에 의해서 지지된 저-방사(저-E) 코팅을 포함한다. 저-E 코팅은 은 기반 적외선(IR) 반사층을 포함하고 IG 윈도우 유닛이 SHGC 대 U 값의 비가 증가하고 코팅의 상부 은 기반 층 대 코팅의 하부 은 기반 층의 두께 비가 증가하도록 한다. 저-E 코팅은 낮은 필름측 반사율을 갖도록 설계되고, 예를 들면, 저-E 코팅이 IG 윈도우 유닛의 표면 넘버 3 상에 사용되는 경우 IG 윈도우 유닛은 IG 윈도우 유닛이 실장되거나 실장될 건물 외측으로부터 볼 때의 가시반사율을 감소시킬 수 있다. An insulating glass (IG) window unit includes first and second substrates, and a low-emissivity (low-E) coating supported by one of the substrates. The low-E coating has two silver based infrared (IR) reflecting layers and allows the IG window unit to realize an increased SHGC to U-value ratio, and an increased thickness ratio of an upper silver based layer of the coating to a bottom silver based layer of the coating. The low-E coating is designed to have a low film-side reflectance, so that for example when the low-E coating is used on surface number three of an IG window unit the IG window unit can realize reduced visible reflectance as viewed from the outside of the building on which the IG window unit is mounted or is to be mounted.