Title: Subwavelength optical microstructure light collimating films
Application Number: 00815611 Application Date: 2000.11.08
Publication Number: 1434928 Publication Date: 2003.08.06
Approval Pub. Date: 2006.10.04 Granted Pub. Date: 2006.10.04
International Classifi-cation: G02B1/11;G02B1/12;G02F1/133;G02B5/04;F21V5/02
Applicant(s) Name: Reflexite Corp. Address:
Inventor(s) Name: Robert B. Nilsen;Patrick W. Mullen;Lu Xiaojing
Attorney & Agent: guo xiaodong
Abstract:
    A light collimating film has a sheeting having a first side and a second side, wherein the first side includes a series of linear optical elements having a primary axis running the length of the optical elements, and the second side includes a plurality of subwavelength optical microstructures being oriented at about ninety degrees relative to the primary axis of the linear optical elements. Another embodiment includes a back lighting display device having a lighting device, a display panel, and a sheeting having a first side and a second side, wherein the first side includes a series of linear prisms having peaks, and the second side includes a plurality of subwavelength optical microstructures being oriented at about ninety degrees relative to the peaks of the linear prisms. Yet another embodiment includes a light collimating structure having a first collimating film having a first surface with a plurality of subwavelength optical microstructures thereon and a second surface with first linear prisms having peaks, the subwavelength optical microstructures being oriented at about ninety degrees relative to the peaks of the first linear prisms, and a second collimating film having a first surface with a plurality of subwavelength optical microstructures thereon and a second surface with second linear prisms having peaks, the subwavelength optical microstructures being oriented at about ninety degrees relative to the peaks of the second linear prisms.
Time: 4