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:
Sep. 12, 2017
Filed:
Dec. 01, 2015
Calin Technology Co., Ltd., Taichung, TW;
Yuan-Long Cai, Taipei, TW;
CALIN TECHNOLOGY CO., LTD., Taichung, TW;
Abstract
A wide angle lens includes, in order from an object side to an image side along an optical axis, a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens, and a positive sixth lens, wherein the sixth lens is adhered to the fifth lens to form a doublet lens. In addition, the wide angle lens further satisfies the condition of SD2/R2>0.6, where SD2 is half of an effective aperture of a surface of the first lens which faces the image side, and R2 is a radius of curvature of the surface of the first lens which faces the image side. Whereby, the FOV of the wide angle lens can be greater than 140 degrees, and the wide angle lens is compatible with a large-sized, e.g., 1/2.3″, photosensitive component.