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1. (WO2018135124) CSP MIRROR AND METHOD FOR PRODUCING GLASS SUBSTRATE WITH FILM FOR CSP MIRRORS

Pub. No.:    WO/2018/135124    International Application No.:    PCT/JP2017/041811
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Wed Nov 22 00:59:59 CET 2017
IPC: G02B 5/08
C03C 17/36
F24S 23/70
Applicants: AGC INC.
AGC株式会社
Inventors: IWAOKA, Hiroaki
岩岡 啓明
Title: CSP MIRROR AND METHOD FOR PRODUCING GLASS SUBSTRATE WITH FILM FOR CSP MIRRORS
Abstract:
A CSP mirror which comprises: a glass substrate; a reflective layer that contains silver; and a coating layer that is arranged between the glass substrate and the reflective layer. The glass substrate has a total Fe concentration of 200 ppm or less in terms of Fe2O3; the reflective layer-side surface of the coating layer has a surface roughness (an arithmetic mean roughness Ra) of 0.4 nm or more; and the CSP mirror has an energy reflectance Re of 94.3% or more if the glass substrate thereof has a thickness of 2 mm.