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:
Jul. 25, 2023
Filed:
Sep. 16, 2020
Newmax Technology Co., Ltd., Taichung, TW;
Ching-Yun Huang, Taichung, TW;
NEWMAX TECHNOLOGY CO., LTD., Taichung, TW;
Abstract
A five-piece infrared single focus lens system includes, in order from the object side to the image side: a stop, a first lens element with a positive refractive power, a second lens element, a third lens element with a positive refractive power, a fourth lens element, a fifth lens element, wherein a focal length of the first lens element is f1, a focal length of the third lens element is f3, a central thickness of the first lens element along an optical axis is CT1, a central thickness of the third lens element along the optical axis is CT3, a radius of curvature of an object-side surface of the first lens element is R1, a radius of curvature of an object-side surface of the third lens element is R5, satisfying the relation: −1.60<(f1×CT1×R1)/(f3×CT3×R5)<2.43. Such a system has a wide field of view, high resolution, short length and less distortion.