US 11,994,657 B2Granted

Optical imaging lens assembly

AssigneeLargan Precision Co., Ltd.

InventorHsin-Hsuan Huang

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Abstract

This disclosure discloses an optical imaging lens assembly, sequentially arranged from an object side to an image side along an optical axis, comprising: the first lens element with positive refractive power, the second lens element with negative refractive power having a convex object-side surface and a concave image-side surface, the third lens element with positive refractive power, the fourth lens element with negative refractive power having a concave object-side surface and a convex image-side surface, the fifth lens element with refractive power having a concave image-side surface, and both object-side surface and image-side surface being aspheric, wherein a stop and an image sensor disposed on an image plane are also provided. By such arrangements, the image pickup optical system satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with camera functionalities.

Claims20

Dependent claims

An optical imaging lens assembly comprising five lens elements, the five lens elements being, from an object side to an image side:

a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element, each of the five lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;
wherein the object-side surface of the second lens element is convex, the image-side surface of the fourth lens element is convex, the image-side surface of the fifth lens element is concave, and the image-side surface of the fifth lens element has at least one inflection point;
wherein the optical imaging lens assembly further comprises an aperture stop disposed between the first lens element and the second lens element, and a focal length of the first lens element and a focal length of the fourth lens element have different signs;
wherein T23 is an axial distance between the second lens element and the third lens element, T34 is an axial distance between the third lens element and the fourth lens element, R10 is a curvature radius of the image-side surface of the fifth lens element, CT5 is a central thickness of the fifth lens element, and the following relations are satisfied:
0.1<T23/T34<2.0;
and
1.3<R10/CT5<3.0.

4 more elements

An optical imaging lens assembly comprising five lens elements, the five lens elements being, from an object side to an image side:

a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element, each of the five lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;
wherein the second lens element has negative refractive power, the object-side surface of the second lens element is convex, the image-side surface of the second lens element is concave, the image-side surface of the fourth lens element is convex, and the image-side surface of the fifth lens element has at least one inflection point;
wherein an absolute value of a focal length of the first lens element is smaller than an absolute value of a focal length of the second lens element, an absolute value of a curvature radius of the object-side surface of the second lens element is smaller than an absolute value of a curvature radius of the object-side surface of the third lens element, and the focal length of the first lens element and a focal length of the fourth lens element have different signs;
wherein R6 is a curvature radius of the image-side surface of the third lens element, CT3 is a central thickness of the third lens element, and the following relation is satisfied:
−4.5<R6/CT3<−0.5.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/213,251Filed 22 Jun 2023 · continuation
Priority: TW 10012268928 Jun 2011
Published: US 2023/0103636 A119 Oct 2023
Granted: 28 May 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G02B 13/0045
Having at least one aspherical surface: having five or more lenses
G02B 9/60
Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -: having five…
G02B 13/18
Optical objectives specially designed for the purposes specified below: with lenses having one or more non-spherical faces, e.g. for reducing…
G02B
Optical elements, systems or apparatus

Family

Application13/349,908Parent of this continuation · filed 13 Jan 2012
Application14/043,122Parent of this continuation · filed 1 Oct 2013
US 8,576,498 B2Parent of this continuation · filed 5 Nov 2013
Application15/189,997Parent of this continuation · filed 22 Jun 2016
US 9,400,373 B2Parent of this continuation · filed 26 Jul 2016
Application15/676,943Parent of this continuation · filed 14 Aug 2017
US 9,772,472 B2Parent of this continuation · filed 26 Sep 2017
Application16/537,355Parent of this continuation · filed 9 Aug 2019
US 10,422,979 B2Parent of this continuation · filed 24 Sep 2019
Application16/863,909Parent of this continuation · filed 30 Apr 2020
US 10,690,890 B2Parent of this continuation · filed 23 Jun 2020
Application17/474,848Parent of this continuation · filed 14 Sep 2021
US 11,150,446 B2Parent of this continuation · filed 19 Oct 2021
Application18/077,941Parent of this continuation · filed 8 Dec 2022
US 11,550,129 B2Parent of this continuation · filed 10 Jan 2023
US 2023/0333351 A1Pre-grant publication · published 19 Oct 2023
US 11,726,303 B2Parent of this continuation
US 2012/0194920 A1Published application
US 2014/0036378 A1Published application
US 2016/0131877 A9Published application
US 2016/0299320 A1Published application
US 2017/0343774 A1Published application
US 2019/0361204 A1Published application
US 2020/0257090 A1Published application
US 2021/0405332 A1Published application
US 2023/0103636 A1Published application
US 11,994,657 B2This patent

From the US filing history. Foreign family members aren’t listed.

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