US 11,768,356 B2Granted

Optical photographing lens assembly, image capturing device and mobile terminal

AssigneeLargan Precision Co., Ltd.

InventorsTsung-Han Tsai, Hsin-Hsuan Huang

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Abstract

An optical photographing lens assembly includes, in order 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. The first lens element has refractive power. The second lens element has positive refractive power. The third lens element with positive refractive power has an image-side surface being concave in a paraxial region thereof. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein an object-side surface and the image-side surface of the fifth lens element are aspheric, and at least one of the surfaces of the fifth lens element has at least one inflection point. The optical photographing lens assembly has a total of five lens elements with refractive power.

Claims19

Dependent claims

An optical photographing lens assembly comprising five lens elements, the five lens elements being, in order 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;
wherein the second lens element has positive refractive power;
the fifth lens element has an object-side surface being concave in a paraxial region thereof;
at least one of the object-side surface and an image-side surface of the fifth lens element is aspheric, at least one of the object-side surface and the image-side surface of the fifth lens element has at least one inflection point;
wherein an axial distance between the first lens element and the second lens element is a maximum among axial distances between each of adjacent lens elements of the five lens elements;
the axial distance between the first lens element and the second lens element is greater than a central thickness of the second lens element;
a total number of lens elements in the optical photographing lens assembly is five;
wherein the optical photographing lens assembly further comprises an aperture stop, an axial distance between the aperture stop and the image-side surface of the fifth lens element is SD, an axial distance between an object-side surface of the first lens element and the image-side surface of the fifth lens element is TD, and the following condition is satisfied:
0
.
8
<
S
⁢
⁢
D
/
T
⁢
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1.
⁢
1
.

23 more elements

An optical photographing lens assembly comprising five lens elements, the five lens elements being, in order 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;
wherein the second lens element has positive refractive power;
the fifth lens element has an object-side surface being concave in a paraxial region thereof;
at least one of the object-side surface and an image-side surface of the fifth lens element is aspheric, at least one of the object-side surface and the image-side surface of the fifth lens element has at least one inflection point;
wherein an axial distance between the first lens element and the second lens element is a maximum among axial distances between each of adjacent lens elements of the five lens elements;
an axial distance between the fourth lens element and the fifth lens element is larger than an axial distance between the second lens element and the third lens element;
a total number of lens elements in the optical photographing lens assembly is five;
wherein the optical photographing lens assembly further comprises an aperture stop, an axial distance between the aperture stop and the image-side surface of the fifth lens element is SD, an axial distance between an object-side surface of the first lens element and the image-side surface of the fifth lens element is TD, and the following condition is satisfied:
0
.
8
<
S
⁢
⁢
D
/
T
⁢
⁢
D
<
1.
⁢
1
.

23 more elements

An optical photographing lens assembly comprising five lens elements, the five lens elements being, in order 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;
wherein the first lens element has an object-side surface being convex in a paraxial region thereof;
the second lens element has an image-side surface being convex in a paraxial region thereof;
at least one of an object-side surface and an image-side surface of the fifth lens element is aspheric, at least one of the object-side surface and the image-side surface of the fifth lens element has at least one inflection point;
wherein a curvature radius of the object-side surface of the fifth lens element and a curvature radius of the image-side surface of the fifth lens element have the same sign;
an axial distance between the third lens element and the fourth lens element is larger than an axial distance between the second lens element and the third lens element;
a central thickness of the second lens element is larger than a central thickness of the first lens element;
the central thickness of the second lens element is larger than a central thickness of the fifth lens element;
an absolute value of a focal length of the first lens element is greater than an absolute value of a focal length of the fourth lens element;
an absolute value of a curvature radius of an object-side surface of the second lens element is larger than an absolute value of the curvature radius of the object-side surface of the fifth lens element;
a total number of lens elements in the optical photographing lens assembly is five;
wherein the optical photographing lens assembly further comprises an aperture stop, an axial distance between the aperture stop and the image-side surface of the fifth lens element is SD, an axial distance between the object-side surface of the first lens element and the image-side surface of the fifth lens element is TD, and the following condition is satisfied:
0
.
9
⁢
6
≤
S
⁢
D
/
T
⁢
D
<
1
.
1
.

27 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/562,086Filed 27 Dec 2021 · continuation
Priority: TW 1021407828 Nov 2013
Published: US 2022/0121012 A121 Apr 2022
Granted: 26 Sep 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 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 5/005
Optical elements other than lenses: diaphragms
G02B 5/208
Filters: for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation

Family

Application14/092,891Parent of this continuation · filed 27 Nov 2013
Application14/944,189Parent of this continuation · filed 17 Nov 2015
US 9,223,114 B2Parent of this continuation · filed 29 Dec 2015
Application15/273,681Parent of this continuation · filed 22 Sep 2016
US 9,482,849 B2Parent of this continuation · filed 1 Nov 2016
Application16/421,454Parent of this continuation · filed 23 May 2019
US 10,345,554 B2Parent of this continuation · filed 9 Jul 2019
US 2022/0121012 A1Pre-grant publication · published 21 Apr 2022
US 11,243,379 B2Parent of this continuation
US 2015/0130999 A1Published application
US 2016/0070087 A1Published application
US 2017/0010448 A1Published application
US 2019/0278065 A1Published application
US 11,768,356 B2This patent

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