Privacy film

Details Privacy film Privacy film

2005-10-14

2008-12-23

Fineman, Lee (Department: 2872)

Optical: systems and elements

Glare or unwanted light reduction

C428S029000, C428S167000, C428S916000, C283S072000, C283S901000, C283S902000

Reexamination Certificate

active

07467873

ABSTRACT:
The present invention pertains to privacy film that can be used with documents. The privacy film has a light transmissive, polymeric base sheet that has opposing first and second surfaces. A plurality of light directing elements protrudes from the first surface of the base sheet. The base sheet can be constructed of a first polymeric material. The light directing elements can be constructed of a second polymeric material. The first and second polymeric material may be the same material. The light directing elements are substantially constant in its cross-section dimension and disposed substantially parallel to each other.

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U.S. Appl. No. 11/251,166, filed Oct. 14, 2005.

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