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:
Jun. 07, 2005
Filed:
Jan. 23, 2002
Colin Maurice Perrott, Mount Barker, AU;
Kevin Douglas O'connor, Goodwood, AU;
Simon John Edwards, St. Peters, AU;
Eric F. Barkan, Novato, CA (US);
David H. Sklar, San Francisco, CA (US);
Colin Maurice Perrott, Mount Barker, AU;
Kevin Douglas O'Connor, Goodwood, AU;
Simon John Edwards, St. Peters, AU;
Eric F. Barkan, Novato, CA (US);
David H. Sklar, San Francisco, CA (US);
Sola International Holdings Ltd., Lonsdale, AU;
Abstract
Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range −6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.