Bendable mirrors and method of manufacture

Details Bendable mirrors and method of manufacture Bendable mirrors and method of manufacture

C - Chemistry, Metallurgy

03

C

C03C 17/36 (2006.01) G02B 1/10 (2006.01) G02B 5/08 (2006.01) G02B 5/10 (2006.01)

Patent

CA 2225234

A heat formable mirror is formed by sputter depositing upon a sheet such as glass a reflective coating utilizing a base layer of silicon or a combination of silicon and stainless steel films, a reflective layer formed of a reflective metallic film such as titanium or aluminum, and a protective layer comprising preferably silicon nitride. The resulting mirror can be heat formed at elevated temperatures to form a curved mirror having a reflective coating free of objectionable defects.

On produit un miroir thermoformable en déposant par pulvérisation cathodique sur une feuille telle qu'une feuille de verre, un revêtement réfléchissant comprenant une couche de base formée de silicium ou d'une combinaison de films de silicium et d'acier inoxydable, une couche réfléchissante formée d'un film métallique réfléchissant tel que du titane ou de l'aluminium, et une couche protectrice comprenant de préférence du nitrure de silicium. On peut thermoformer le miroir résultant à des températures élevées pour former un miroir cintré doté d'un revêtement réfléchissant dépourvu de défectuosités indésirables.

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