Optical article covered with a visible-absorbing,...

Details Optical article covered with a visible-absorbing,... Optical article covered with a visible-absorbing,...

2004-12-16

2010-06-15

Speer, Timothy M (Department: 1794)

Stock material or miscellaneous articles

Composite

Of polycarbonate

C428S426000, C428S701000, C428S702000

Reexamination Certificate

active

07736742

ABSTRACT:
The invention relates to an optical article comprising a transparent substrate made of organic or inorganic glass, with main front and rear faces, at least one of said main faces comprising a multi-layer anti-reflection coating, wherein said anti-reflection coating comprises at least two visible-absorbing layers comprising a sub-stoichiometric titanium oxide, the visible-absorbing layers being such that the relative transmission factor of visible light Tv is reduced by at least 10% compared with the same article not comprising said visible-absorbing layers.

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Society of Vacuum Coaters (http://www.svc.org/AboutSVC/Applications-of-Vacuum-Coating.cfm).

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