A method that includes providing a lens having a first side, a second
side, and an anti-reflective or mirror coating on the first side;
depositing a heat-curable coating on the second side of the lens; and
heating the heat-curable coating without damaging the anti-reflective or
mirror coating. Another method that includes providing a non-pure
polycarbonate lens having a first side, a second side, and a first
coating on the first side; depositing a heat-curable coating on the
second side of the lens; and heating the heat-curable coating without
damaging the first coating. Other methods are also disclosed.