Patent · US Expired

Light collimating and diffusing film and system for making the film

US7092163B2 · kind B2 · utility

28Cited by

10References

31Claims

0Family size

Assignee

General Electric Company · US

Inventors

Adel F. Bastawros · Newburgh, US
Kevin Capaldo · Mount Vernon, US
Gheorghe Cojocariu · Evansville, US
Ashwit Dias · Mauda, IN
John Frederick Graf · Ballston Lake, US
Emine Elif Gurel · Evansville, US
Grant Hay · Niskayuna, US
Marshall Gordon Jones · Scotia, US
Karkala Arun Kumar · Evansville, US
Todd M. Loehr · Evansville, US
Steven Alfred Tysoe · Ballston Spa, US
Masako Yamada · Kyoto, JP

Key dates

Filing date	Jul 22, 2004
Grant date	Aug 15, 2006
Priority date	—
Expiry date	Sep 15, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S359/90
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A light collimating and diffusing film and a method for making the film are provided. The film includes a plastic layer having a first side and a second side opposite the first side and at least a first peripheral edge. The first side has a first textured surface, wherein between 7 to 20 percent of slope angles on the first textured surface proximate a first axis has a value between zero and five degrees. The first axis is substantially parallel to the first peripheral edge. The plastic layer collimates light propagating therethrough.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.