Patent ID: 7754043

Claim:
A method for applying an optical coating to a gas turbine engine component having a surface, comprising the steps of: furnishing the gas turbine engine component having the surface; providing a deposition substrate separate from the gas turbine engine component, wherein the deposition substrate is made of a removable material that is a polyvinyl alcohol substrate or a polypropylene substrate; thereafter depositing the optical coating onto the deposition substrate at a first location, wherein the optical coating has a first face contacting the deposition substrate, and a second face remote from the first face, wherein the optical coating is a multilayer coating selected from the group consisting of alternating layers of Si and SiO, alternating layers of SiO 2 and TiO 2 , or alternating layers of SiO 2 and Ta 2 O 5 ; thereafter transferring the optical coating to the surface of the gas turbine engine component using a transfer support at a second location remote from the first location; thereafter affixing the optical coating to the surface of the gas turbine engine component using a multilayer aluminosilicate tape by pressing the optical coating and the surface of the gas turbine engine component together with the multilayer aluminosilicate tape therebetween at an elevated temperature; and thereafter removing the transfer support completely.