Patent ID: 7119960
Filing Date: 2006-10-10
Classification: G02B

Abstract:
1. A method of manufacturing an optical filter, the filter comprising a substrate, a multi-cavity Fabry-Perot layer, and an extended blocking layer, wherein for the multi-cavity Fabry-Perot layer, the method comprises the steps of: calculating, with a data processor, a first theoretical transmission T calculating, with the data processor, a first expected deposition time t measuring, during deposition of the multi-cavity Fabry-Perot layer for a period less than the first t determining, with the data processor, when deposition of the multi-cavity Fabry-Perot layer is to terminate based upon the first theoretical transmission T wherein for the extended blocking layer, the method further comprises the steps of: calculating, with the data processor, a second expected deposition time t determining, with the data processor, when deposition of the extended blocking layer is to terminate based upon the second expected deposition time t