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:
Jun. 21, 2022
Filed:
Feb. 04, 2020
Jorjin Technologies Inc., New Taipei, TW;
Chun-Wei Leu, New Taipei, TW;
Jorjin Technologies Inc., New Taipei, TW;
Abstract
An ocular optical system configured to allow imaging rays from a display image to enter an observer's eye through the ocular optical system so as to form an image is provided. A direction toward the eye is an eye side, and a direction toward the display image is a display side. The ocular optical system includes a first lens element, a second lens element, and a third lens element arranged along an optical axis in sequence from the eye side to the display side. Each of the first to third lens elements has an eye-side surface and a display-side surface. The ocular optical system satisfies: 0<f/f1+f/f2+f/f3<0.35, where f is an effective focal length of the ocular optical system, f1 is a focal length of the first lens element, f2 is a focal length of the second lens element, and f3 is a focal length of the third lens element.