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

US11971522B2 · kind B2 · utility

Assignee

• Zhejiang Sunny Optical Co., Ltd · CN

Inventors

• Xue Gao · Beijing, CN
• Ming Li · Ningbo City, CN
• Jianke Wenren · 马宅镇, CN

Key dates

• Filing date: Jul 28, 2020
• Grant date: Apr 30, 2024
• Expiry date: Jul 9, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B9/62
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The present disclosure discloses an optical imaging lens assembly which includes sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has a positive refractive power with a convex object-side surface; the second lens has a refractive power with a concave image-side surface; the third lens has a refractive power with a convex object-side surface; the fourth lens has a refractive power with a concave object-side surface; the fifth lens has a refractive power; and the sixth lens has a refractive power with a concave object-side surface. A maximum effective radius DT11 of the object-side surface of the first lens and a maximum effective radius DT61 of the object-side surface of the sixth lens satisfy 0.6<DT11/DT61<1.