Appeal No. 2006-0037
Application No. 09/874,371
Russell focuses on optical coatings made of dielectric films,
but acknowledges that “[a] variety of materials have been used as
optical coatings, and most of these materials can be broadly
classed in two categories, those used for their intrinsic
electronic properties (e.g., metals), and those used as optical
interference films (e.g., dielectrics), and combinations thereof
(e.g., metal-dielectrics)” (column 4, lines 3-8). According to
Russell, thermal control coatings or films typically transmit most
or all of the incident visible radiation, while reflecting most or
all of the incident infrared radiation (see column 3, lines 47-50).
In this vein, the dielectric coatings favored by Russell are
highly transmissive with respect to visible radiation, at least 50%
to more than 90%, and highly reflective with respect to infrared
(heat) radiation, at least 50% to more than 90% (see, for example,
column 5, lines 43-54; and column 26, lines 16-54). Russell also
teaches that the reflection characteristics of the films depend on,
among other things, their thicknesses (see, for example, column 4,
lines 19-33; column 10, lines 6-15; and column 23, line 36, through
column 25, line 20), and that the films may be applied to different
types of glazing assemblies including single pane constructions
7
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007