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. 02, 2025
Filed:
Jun. 21, 2023
Beijing Zitiao Network Technology Co., Ltd., Beijing, CN;
Yuanpeng Wang, Beijing, CN;
Sheng Luo, Beijing, CN;
Beijing Zitiao Network Technology Co., Ltd., Beijing, CN;
Abstract
An optical system and a display device are provided. The optical system includes an optic group, a polarizing transflective film, a phase retardation film, and a transflective film. The optic group includes a first optic and a second optic; the polarizing transflective film and the phase retardation film are on one side of the optic group, the transflective film is on the other side of the optic group. The first optic includes a plane surface and a first aspheric surface having a curvature radius of −120 mm to −140 mm, the second optic includes a second aspheric surface having a curvature radius of −175 mm to −185 mm and a third aspheric surface having a curvature radius of −100 mm to −110 mm; a focal length of the optical system is 26 mm to 30 mm, an effective aperture of the optic group is 55 μm to 58 μm.