Optical imaging lens assembly including seven lenses of −++−++−, +++−++−, −−+−++−, −++−+−− or +++−+++ refractive powers

US11709340B2 · kind B2 · utility

Assignee

• Zhejiang Sunny Optical Co., Ltd · CN

Inventors

• Long Li · Shanghai, CN
• Xiaoting Geng · Fangcun, CN
• Dawei Tang · Beijing, CN
• Fujian Dai · Ningbo City, CN
• Liefeng Zhao · 丈亭镇, CN

Key dates

• Filing date: Jul 9, 2020
• Grant date: Jul 25, 2023
• Expiry date: May 15, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B13/04
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The present disclosure discloses an optical imaging lens assembly including a first lens; a second lens with a convex object-side surface and a concave image-side surface; a third lens having a positive refractive power with a convex object-side surface; a fourth lens having a negative refractive power with a concave object-side surface; a fifth lens; a sixth lens with a convex object-side surface and a concave image-side surface, and at least one of the object-side surface and the image-side surface thereof having an inflection point; and a seventh lens having a refractive power with a convex object-side surface and a concave image-side surface, and at least one of the object-side surface and the image-side surface thereof having an inflection point, wherein a total effective focal length f and a radius of curvature R11 of the object-side surface of the sixth lens satisfy 1.00<f/R11<2.50.