High transmittance, low emissivity coatings for substrates

Details High transmittance, low emissivity coatings for substrates High transmittance, low emissivity coatings for substrates

2005-01-04

2005-01-04

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C359S359000, C428S336000, C428S432000, C428S433000, C428S472000, C428S697000, C428S701000, C428S702000

Reexamination Certificate

active

06838159

ABSTRACT:
The present invention provides a coating for a transparent substrate which exhibits a “neutral” color through a wide range of angles of incidence of light. The coating employs a base coat adjacent the transparent substrate having a thickness of no more than about 275 Å and may include two reflective metal layers having an intermediate layer of an anti-reflective metal oxide therebetween and an outer anti-reflective layer of metal oxide over the second reflective metal layer. If so desired, the coating of the invention may include an abrasive-resistant overcoat as its outermost layer. This overcoat is desirably formed of an abrasive-resistant metal oxide, such as zinc oxide applied at a thickness which does not significantly affect the optical properties of said coated substrate.

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