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:
Dec. 17, 2019
Filed:
Feb. 14, 2019
Genius Electronic Optical Co., Ltd., Taichung, TW;
Matthew Bone, Fremont, CA (US);
Genius Electronic Optical Co., Ltd., Taichung, TW;
Abstract
An optical imaging system includes, in the given order from the object side to the image side, a first lens element, a second lens element, a third lens element, and a fourth lens element arranged along an optical axis. The lens elements of the optical imaging systems may be made of the same material having absorption in visible wavelengths and high transmission in near infrared radiation. The lens elements may be coated with an antireflective coating that is optimized for near infrared radiation. The optical imaging system satisfies the relations 2.13°≤HFOV/Fno≤8.75°, and 0.56≤G/T≤1.54, where HFOV is the half field of view and Fno is the F number of the optical imaging system, Gis an air gap between the second and third lens elements along the optical axis, and Tis a thickness of the first lens element along the optical axis.