Patent ID: 8481109

Claim:
A method of forming a flexible dichroic optical filter, comprising: depositing a plurality of pairs of layers above a flexible transparent plastic substrate, each of the plurality of pairs of layers comprising a first layer formed of a silicon-and-carbon containing material having a first index of refraction, a first hydrogen content, a first compressive stress, a first water vapor transmission rate, and a first transparency and a second layer formed of a silicon-and-carbon containing material having a second index of refraction, a second hydrogen content, a second compressive stress, a second water vapor transmission rate, and a second transparency, such that the first index of refraction is lower than the second index of refraction; the second hydrogen content is lower than the first hydrogen content, the second compressive stress is larger than the first compressive stress, the second water vapor transmission rate is lower than the first water vapor transmission rate, and the second transparency is lower than the first transparency.