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:
Oct. 15, 2024
Filed:
Aug. 27, 2021
Dongguan Yutong Optical Technology Co., Ltd., Dongguan, CN;
Dongguan Yutong Optical Technology Co., Ltd., Dongguan, CN;
Abstract
Provided a wide-angle lens includes: first lens, second lens, third lens, fourth lens, fifth lens, sixth lens, and seventh lens arranged sequentially from object surface to image surface along optic axis; first lens and sixth lens are negative focal power lenses, third lens, fourth lens, fifth lens, and seventh lens are positive focal power lenses, and second lens is negative or positive focal power lens; focal lengths of first lens, second lens, third lens, fourth lens, fifth lens, sixth lens, seventh lens, and the wide-angle lens are f1, f2, f3, f4, f5, f6, f7 and f respectively, satisfying: 0.3≤|f1/f|≤2.6, |f2/f|≥2, 2.3≤|f3/f|≤7.2, |f4/f|≥0.8, 0.67≤|f5/f|≤2.94, 0.32≤|f6/f|≤2.77, and |f7/f|≥0.16. The wide-angle lens can satisfy surveillance requirements of high definition and small distortion while ensuring low cost.