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:
Jan. 21, 2025
Filed:
Jan. 11, 2023
Shenzhen Ned Optics Co., Ltd, Shenzhen, CN;
Shenzhen NED Optics Co., Ltd, Shenzhen, CN;
Abstract
The present invention relates to an eyepiece optical structure, an eyepiece system and an optical device. The structure includes a lens group Ton which an optical binary surface pattern and a Fresnel surface pattern distributed in a direction from a human eye viewing side to a display device side are arranged. The lens group Thas a focal length of F, and a clear aperture of D, and F and D satisfy the following relational expression: 1.9≤F/D. The optical binary surface pattern has a focal length of F2, and F and F2 satisfy the following relational expression: −120<F2/F<10.78. In the present invention, a combination of the novel optical surface pattern and the Fresnel surface pattern is adopted, and the focal length of each lens and lens group achieves great elimination of system aberration under the condition of meeting specific conditions.