An adhesive sheet is disclosed including a flexible substrate and an
adhesive layer formed on at least one of the main surfaces of the
flexible substrate. The adhesive sheet further includes a plurality of
microscopic holes connecting the opposing surfaces of the sheet and being
generally perpendicular to them. Such adhesive sheet is permeable by air
and allows good bubble escapability when the sheet is applied to an
article. Sufficient permeability of the sheet to air is achieved with
microscopic size holes installed in modest areal densities, hence the
appearance and functionality of the film surface are not significantly
adversely impacted. One intended use of the subject invention is for
tinting films used to reduce light transmission in windows for use in
buildings and automobiles. In this application visual appearance of the
film is paramount. Another intended application of the subject invention
is for antireflective film which is applied to electronic computer
displays (flat panel, cathode ray tube) to reduce unwanted ambient light
reflection and to improve contrast.