Source: http://www.google.com/patents/US8128224?dq=U.S.+patent+number+7,325,728
Timestamp: 2017-05-30 08:29:11
Document Index: 141656629

Matched Legal Cases: ['Application No. 03', 'Application No. 03744674', 'Application No. 06816842', 'Application No. 2004270746', 'Application No. 2003225785', 'Application No. 2004270746']

Patent US8128224 - Injection molding of lens - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA flat or curved photochromic laminate structure and a plastic photochromic lens blank can be produced in a simple and efficient manner from relatively low-cost polymeric sheet materials. These laminates can be used to provide goggles, face shields, windows, window coverings, skylights, and optical lenses...http://www.google.com/patents/US8128224?utm_source=gb-gplus-sharePatent US8128224 - Injection molding of lensAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS8128224 B2Publication typeGrantApplication numberUS 11/458,255Publication dateMar 6, 2012Filing dateJul 18, 2006Priority dateMay 30, 2000Fee statusPaidAlso published asUS7077985, US20030214080, US20060244909Publication number11458255, 458255, US 8128224 B2, US 8128224B2, US-B2-8128224, US8128224 B2, US8128224B2InventorsAlan D. Maki, Eric J. Woelfle, Darrell B. Kroulik, Thomas J. Moravec, Edward A. Travnicek, Martin L. HageOriginal AssigneeInsight Equity A.P.X, LpExport CitationBiBTeX, EndNote, RefManPatent Citations (229), Non-Patent Citations (65), Referenced by (2), Classifications (35), Legal Events (10) External Links: USPTO, USPTO Assignment, EspacenetInjection molding of lens
US 8128224 B2Abstract
providing a supply of a laminable sub-element structure, the laminable sub-element structure comprising (the laminable material being as described above, but shown immediately below as a preferred, but non-limiting description), in order and in superposed relation, a first light-transmissive polymeric layer, a photochromic layer, and a second light-transmissive polymeric layer, the first light-transmissive layer being a thin layer relative to said second light-transmissive layer, said second light-transmissive layer being substantially thicker than said first light-transmissive layer and having a thickness sufficient to permit the shaping (e.g., grinding) of material therefrom (e.g., in the optical grinding of a concave surface of a lens to be formed from the laminar composite structure). In the case of the formation of ophthalmic lenses, the photochromic layer and at least the first of the first and second light-transmissive layers being aligned such that focal axes are aligned; cutting and removing material from the supply at said laminar composite structure a unitary portion of a size sufficient for the production therefrom of a photochromically enhanced surface, such as a curved lens;
TABLE polyurethane type specimen ester ether ester ether ester ether ester ether conformation film film laminate laminate film film laminate laminate Urethane film 0.178 0.186 0.191 0.190 0.178 0.186 0.191 0.190 portion thickness, mm Fatigue fadometer 0 0 0 0 144 144 144 144 hours Unactivated 86.2 83.7 84.4 82.4 79.4 77.1 82.1 82.4 Luminous Transmission % T Loss of unactivated 0 0 0 0 6.8 6.6 2.3 0 Luminous Transmittance Xenon Lamp 15 min 6.3 17.3 7.4 13.6 20.5 56.4 11.8 44.3 Activated (Darker) Luminous Transmission at 72° F. Activation range 79.9 66.4 77.0 68.8 58.9 20.7 70.3 38.1 Luminous Transmission Loss of activation 0 0 0 0 26.3 68.8 8.7 44.6 Transmission range As can be seen from the data, there was significant performance improvements using the polyester urethane as compared to the use of the polyether urethane as the carrying medium for the photochromic material. There was far more improvement than trade-off loss, such as the 2.3% loss of unactivated luminous transfer for the polyester urethane (as compared to 0% loss for the polyether urethane) and 82.1% to 82.4% unactivated luminous transmission as compared to the 8.7% loss for the polyester urethane for loss of activation percent transmission range (as compared to 44.6% loss for the polyether urethane) and the Xenon lamp activated transmission of 11.8 (darker, as this is transmission being measured) as compared to 44.3% transmission for the polyether urethane.
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No. 12/401,277, 12 pages.62WIPO, U.S. International Preliminary Examining Authority, International Preliminary Report on Patentability mailed Sep. 20, 2005 in International Patent Application No. PCT/US04/30023, 4 pages.63WIPO, U.S. International Searching Authority, International Search Report and Written Opinion mailed Apr. 4, 2005 in International Patent Application No. PCT/US04/30023, 8 pages.64WIPO, U.S. International Searching Authority, International Search Report and Written Opinion mailed Aug. 27, 2007 in International Patent Application No. PCT/US06/08444, 7 pages.65WIPO, U.S. International Searching Authority, International Search Report and Written Opinion mailed Mar. 6, 2007 in International Patent Application No. PCT/US06/38142, 4 pages.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8440044Jul 27, 2011May 14, 2013Insight Equity A.P.X., L.P.Forming method for polymeric laminated wafers comprising different film materialsUS20140101812 *Oct 11, 2012Apr 17, 2014Corey RichardsSystem and method for eye protection* Cited by examinerClassifications U.S. Classification351/159.59, 428/423.1International ClassificationG02C7/10, B32B27/40, B29D11/00, B29C45/73, B29C45/14, G02B5/23Cooperative ClassificationY10T428/31551, B29K2069/00, B29C45/73, G02B5/3033, B29L2011/0016, B29D11/00028, B29C45/1418, G02C7/102, G02C2202/16, B29K2081/06, B29C45/14811, B32B27/36, B29K2075/00, B29D11/00432, G02B5/23, B29K2995/0018, B29D11/0073European ClassificationB32B27/36, G02B5/23, B29C45/14Q4, G02C7/10, G02B5/30P1, G02C7/10C, B29D11/00C3, B29C45/73, B29D11/00C22, B29D11/00HLegal EventsDateCodeEventDescriptionDec 20, 2007ASAssignmentOwner name: ORIX FINANCE CORP., TEXASFree format text: SECURITY AGREEMENT;ASSIGNOR:INSIGHT ESQUITY A.P. 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