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:
May. 06, 2025
Filed:
Feb. 21, 2022
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A compact optical imaging device with shortened focal length, for use in an imaging module and an electronic device, comprises first to fifth lenses. An image-side surface of the first lens is concave near an optical axis. An image-side surface of the third lens is concave near the optical axis. The second and fourth lenses have a negative refractive power. The third and fifth lenses have a positive refractive power. The optical imaging device satisfies formulas: 95°/mm<FOV/TL5<105°/mm and 1 mm<FNO/TL4<1.5 mm, FOV being a maximum field of view of the optical imaging device, TL5 being a distance from an object-side surface of the fifth lens to an image plane of the optical imaging device along the optical axis, FNO being a F-number of the optical imaging device, and TL4 being a distance from an object-side surface of the fourth lens to the image plane along the optical axis.