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

US12007533B2 · kind B2 · utility

Assignee

• Zhejiang Sunny Optical Co., Ltd · CN

Inventors

• Haidong Xiao · Ningbo City, CN
• Kaiyuan Zhang · Ningbo City, CN
• Fujian Dai · Ningbo City, CN
• Liefeng Zhao · 丈亭镇, CN

Key dates

• Filing date: Sep 30, 2020
• Grant date: Jun 11, 2024
• Expiry date: Apr 17, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B9/64
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The present disclosure discloses an optical imaging lens assembly including a first lens having positive refractive power with a convex object-side surface and a concave image-side surface; a second lens having refractive power; a third lens having refractive power with a concave image-side surface; a fourth lens having positive refractive power; a fifth lens having refractive power with a convex object-side surface and a concave image-side surface; a sixth lens having positive refractive power with a convex object-side surface and a convex image-side surface; and a seventh lens having negative refractive power with a concave object-side surface and a concave image-side surface. A distance TTL along the optical axis from the object-side surface of the first lens to an imaging plane, half a diagonal length ImgH of an effective pixel area on the imaging plane and a total effective focal length f satisfy: 5.00 mm<TTL/ImgH*f<6.00 mm.