The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2008
Filed:
Dec. 14, 2001
Applicants:
Michael R. Brickey, Rochester, NY (US);
Cheryl J. Kaminsky, Rochester, NY (US);
Robert P. Bourdelais, Pittsford, NY (US);
Thomas M. Laney, Spencerport, NY (US);
Inventors:
Michael R. Brickey, Rochester, NY (US);
Cheryl J. Kaminsky, Rochester, NY (US);
Robert P. Bourdelais, Pittsford, NY (US);
Thomas M. Laney, Spencerport, NY (US);
Assignee:
Rohm and Haas Denmark Finance A/S, Copenhagen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 13/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a light diffuser comprising a thermoplastic layer containing thermoplastic polymeric material and microvoids having a substantially circular cross-section in a plane perpendicular to the direction of light travel and having a diffuse light transmission efficiency of at least 65%.