US 7,597,461 B2
	Tensioned optical element and display
Thomas M. Laney, Spencerport, N.Y. (US); Bradley C. DeCook, Rochester, N.Y. (US); and David J. Cornell, Rochester, N.Y. (US)
Assigned to SKC Haas Display Films Co., Ltd., Choongchungnamdo (Korea, Republic of)
Filed on May 16, 2007, as Appl. No. 11/749,173.
Claims priority of provisional application 60/900895, filed on Feb. 12, 2007.
Prior Publication US 2008/0192481 A1, Aug. 14, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 11/00 (2006.01)

U.S. Cl. 362—355  [362/608; 362/618; 362/629; 349/58; 349/59; 349/60]

5 Claims

1. An optical element comprising at least one optical film wherein at least a portion of the optical film is maintained dimensionally stable by the presence of a mechanism for application of a controlled tensile force to the film wherein the tensile force is applied through a tensioning mechanism protruding through holes or slots in the optical film.