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. 14, 2025
Filed:
Jul. 23, 2020
Ofilm Group Co., Ltd., Shenzhen, CN;
Jiangxi Jingchao Optical Co., Ltd., Nanchang, CN;
Nini Wang, Nanchang, CN;
Binbin Liu, Nanchang, CN;
Ming Li, Nanchang, CN;
Hairong Zou, Nanchang, CN;
OFILM GROUP CO., LTD., Shenzhen, CN;
JIANGXI JINGCHAO OPTICAL CO., LTD., Nanchang, CN;
Abstract
An optical system includes: a stop; a first lens having a positive refractive power, an object side surface being convex at a paraxial area; a second lens; a third lens; a fourth lens; a fifth lens; a sixth lens having a positive refractive power, an image side surface being convex at a paraxial area; a seventh lens; and an eighth lens, an image side surface being concave a paraxial area. The optical system satisfies the condition: (MIN6*MAX8/MAX6*MIN8)≤2. MIN6 is a minimum thickness of the sixth lens in a direction of an optical axis, MAX6 is a maximum thickness of the sixth lens in the direction of the optical axis, MIN8 is a minimum thickness of the eighth lens in the direction of the optical axis, and MAX8 is a maximum thickness of the eighth lens in the direction of the optical axis.