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:
Apr. 30, 2019
Filed:
Feb. 15, 2017
National Taiwan University of Science and Technology, Taipei, TW;
NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, Taipei, TW;
Abstract
A progressive multifocal contact lens and producing method thereof are provided. The progressive multifocal contact lens includes a first optical region of a front optical surface and a second optical region of a back optical surface. The first optical region includes a center zone, an outer zone and an intermediate zone connected between the center zone and outer zone where the center zone and outer zone are selected from a distance vision power and a near vision power and the intermediate zone is configured to adjust the optical power of the distance vision power and the near vision power so that the optical power or add power of the first optical region on the front optical surface forms a normal cumulative distribution function.