CN214375517U

CN214375517U - Optical image capturing lens assembly, imaging device and electronic device

Info

Publication number: CN214375517U
Application number: CN202120329047.8U
Authority: CN
Inventors: 郭瑞雄; 柯家仪
Original assignee: Zhongyang Optoelectronics Co ltd
Current assignee: Zhongyang Optoelectronics Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-10-08
Anticipated expiration: 2031-02-05

Abstract

The present application provides an optical image capturing lens assembly, sequentially including, from an object side to an image side, a first lens element, a second lens element, a third lens element and a fourth lens element; the optical image capturing lens assembly further includes an aperture stop disposed between the object and the second lens element. The first lens element with positive refractive power has a convex object-side surface and a convex image-side surface; the second lens element with positive refractive power has a concave object-side surface and a convex image-side surface; the third lens element with negative refractive power has a concave object-side surface and a convex image-side surface; the first lens to the third lens comprise at least one aspheric surface respectively; the fourth lens element with positive refractive power has a convex object-side surface at the paraxial region, a concave image-side surface at the paraxial region, and a convex image-side surface at the off-axis region, and both the object-side surface and the image-side surface are aspheric surfaces. The total number of the lenses of the optical image capturing lens group is four.

Description

Optical image capturing lens assembly, imaging device and electronic device

Technical Field

The present disclosure relates to an optical image capturing device, and more particularly, to an optical image capturing lens assembly for use in a portable electronic device or a monitoring camera device, and an imaging device and an electronic device having the optical image capturing lens assembly.

Background

With the progress of semiconductor manufacturing technology, the size of the photosensitive elements (such as CCD and CMOS Image Sensor) required by the Camera device can be reduced and meet the requirement of Miniaturized Camera devices, which drives the development trend of consumer electronics to carry Miniaturized Camera devices (Miniaturized cameras) to increase the added value of products. For example, a portable electronic device such as a smart phone is portable and portable, so that the current consumer often uses a mobile phone to take a picture instead of using a conventional digital camera. However, the demand of consumers for portable electronic devices is increasing, and in addition to the demand for aesthetic appearance, the portable electronic devices are also required to be small and light. Therefore, the compact camera device mounted on the portable electronic device must be further miniaturized in overall size so as to be installed in an electronic product with a thin and light profile.

In addition, the imaging quality of the camera device is also increasing, and in addition to the clear imaging quality, the consumer also hopes to have a wider shooting angle and good thermal stability to meet the requirements of various shooting occasions. Therefore, how to provide a small-sized imaging device with good imaging quality and environmental temperature change resistance has become a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An optical image capturing 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 and a fourth lens element. The first lens element with positive refractive power has a convex object-side surface and a convex image-side surface, and at least one of the object-side surface and the image-side surface is aspheric; the second lens element with positive refractive power has a concave object-side surface and a convex image-side surface, and at least one of the object-side surface and the image-side surface is aspheric; the third lens element with negative refractive power has a concave object-side surface and a convex image-side surface, and at least one of the object-side surface and the image-side surface is aspheric; the fourth lens element with positive refractive power has a convex object-side surface at the paraxial region and a concave image-side surface at the off-axis region, and has a concave image-side surface at the paraxial region and a convex image-side surface at the off-axis region, wherein the object-side surface and the image-side surface of the fourth lens element are aspheric and each of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point; wherein, the total number of the lenses of the optical image capturing lens group is four; the optical image capturing lens assembly further includes an aperture stop disposed between the object and the second lens element. The distance on the optical axis from the image side surface of the first lens to the object side surface of the second lens is TT1, the distance on the optical axis from the image side surface of the second lens to the object side surface of the third lens is TT2, the distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens is TT3, the thickness on the optical axis of the fourth lens is CT4, the effective focal length of the whole optical image capturing lens group is EFL, the incident angle is 35 degrees relative to the optical axis and the light ray passes through the center of the aperture, the distance between the intersection point of the light ray and the image side surface of the fourth lens and the optical axis is Ry4, and the following relations are satisfied: 1.2< EFL/(TT1+ TT2+ CT4) < 2.0; and 4< Ry4/(TT2+ TT3) < 7.

According to an embodiment of the present application, a radius of curvature of the image-side surface of the third lens element is R6, and a radius of curvature of the object-side surface of the fourth lens element is R7, which satisfy the following relations: -0.25< TT2/(R6-R7) < -0.08.

The present application further provides an optical image capturing lens assembly, which includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element with positive refractive power has a convex object-side surface and a convex image-side surface, and at least one of the object-side surface and the image-side surface is aspheric; the second lens element with positive refractive power has a concave object-side surface and a convex image-side surface, and at least one of the object-side surface and the image-side surface is aspheric; the third lens element with negative refractive power has a concave object-side surface and a convex image-side surface, and at least one of the object-side surface and the image-side surface is aspheric; the fourth lens element with positive refractive power has a convex object-side surface at the paraxial region and a concave image-side surface at the off-axis region, and has a concave image-side surface at the paraxial region and a convex image-side surface at the off-axis region, wherein the object-side surface and the image-side surface of the fourth lens element are aspheric, and the object-side surface and the image-side surface of the fourth lens element each have at least one inflection point; wherein, the total number of the lenses of the optical image capturing lens group is four; the optical image capturing lens assembly further includes an aperture stop disposed between the object and the second lens element. The distance on the optical axis from the image-side surface of the first lens element to the object-side surface of the second lens element is TT1, the distance on the optical axis from the image-side surface of the second lens element to the object-side surface of the third lens element is TT2, the distance on the optical axis from the object-side surface of the first lens element to the image plane of the optical image capturing lens assembly is TTL, the radius of curvature of the object-side surface of the second lens element is R3, and the radius of curvature of the image-side surface is R4, which satisfy the following relations: 1.2< EFL/(TT1+ TT2+ CT4) < 2.0; and-1.7 < TTL/(R3+ R4) < -0.5.

According to an embodiment of the present application, an axial distance between the image-side surface of the second lens element and the object-side surface of the third lens element is TT2, an axial distance between the image-side surface of the third lens element and the object-side surface of the fourth lens element is TT3, an effective focal length of the optical image capturing lens assembly is EFL, an incident angle of 35 degrees with respect to the optical axis is a light ray passing through a center of the aperture stop, and a distance between an intersection point of the light ray and the image-side surface of the fourth lens element and the optical axis is Ry4, which satisfies the following relation: 4< Ry4/(TT2+ TT3) < 7.

According to an embodiment of the present application, the focal length of the second lens element is f2, and the focal length of the third lens element is f3, which satisfy the following relations: -0.5< f3/f2< -0.2.

According to an embodiment of the present disclosure, the effective focal length EFL of the optical image capturing lens assembly and the radius of curvature R7 of the object-side surface of the fourth lens element satisfy the following relation: 2.8< EFL/R7< 4.3.

According to an embodiment of the present application, the abbe number of the first lens is V1, the abbe number of the second lens is V2, the abbe number of the third lens is V3, and the abbe number of the fourth lens is V4, which satisfy the following relations: -3.7< (V1+ V2)/(V3-V4) < -2.6.

According to an embodiment of the present application, a radius of curvature of an object-side surface of the third lens element is R5, a radius of curvature of an image-side surface of the third lens element is R6, and a focal length of the third lens element is f3, which satisfies the following relation: 0.8< (R5+ R6)/f3< 2.2.

According to an embodiment of the present invention, an axial distance TT2 between the image-side surface of the second lens element and the object-side surface of the third lens element and an axial distance TT3 between the image-side surface of the third lens element and the object-side surface of the fourth lens element satisfy the following relation: 10< TT2/TT3< 43.

The present application further provides an imaging device, which includes the optical image capturing lens assembly and an image sensing assembly, wherein the image sensing assembly is disposed on an image plane of the optical image capturing lens assembly.

The present application further provides an electronic device including the aforementioned imaging device.

Other features and embodiments of the present application will be described in detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1A is a schematic view of an optical image capturing lens assembly according to a first embodiment of the present application;

FIG. 1B is a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of the first embodiment of the present application, in order from left to right;

FIG. 2A is a schematic view of an optical image capturing lens assembly according to a second embodiment of the present application;

FIG. 2B is a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of a second embodiment of the present application, in order from left to right;

FIG. 3A is a schematic view of an optical image capturing lens assembly according to a third embodiment of the present application;

FIG. 3B is a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of a third embodiment of the present application, in order from left to right;

FIG. 4A is a schematic view of an optical image capturing lens assembly according to a fourth embodiment of the present application;

FIG. 4B is a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of a fourth embodiment of the present application, in order from left to right;

FIG. 5A is a schematic view of an optical image capturing lens assembly according to a fifth embodiment of the present application;

FIG. 5B is a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of a fifth embodiment of the present application, in order from left to right;

FIG. 6 is a schematic diagram illustrating a distance perpendicular to an optical axis of a light ray passing through a center of an aperture stop at an incident angle of 35 degrees with respect to the optical axis of an image capturing lens assembly according to the present application, the light ray passing through an intersection point of image side surfaces of a fourth lens element;

fig. 7 is a schematic view of an electronic device according to a seventh embodiment of the present application.

Description of the symbols

10. 20, 30, 40 and 50 optical image capturing lens group

1. 11, 21, 31, 41, 51 first lens

2. 12, 22, 32, 42, 52 second lens

3. 13, 23, 33, 43, 53 third lens

4. 14, 24, 34, 44, 54 fourth lens

5. 15, 25, 35, 45, 55 filter assembly

6. 16, 26, 36, 46, 56 imaging plane

11a, 21a, 31a, 41a, 51a first lens

11b, 21b, 31b, 41b, 51b, the image-side surface of the first lens element

12a, 22a, 32a, 42a, 52a second lens

12b, 22b, 32b, 42b, 52b second lens

13a, 23a, 33a, 43a, 53a third lens element

13b, 23b, 33b, 43b, 53b, the image side of the third lens

14a, 24a, 34a, 44a, 54a fourth lens

14b, 24b, 34b, 44b, 54b, an image side surface of the fourth lens

15a, 15b, 25a, 25b, 35a, 35b, 45a, 45b filter assembly

100. 200, 300, 400, 500 image sensing assembly

1000 electronic device 1010 imaging device

I optical axis ST aperture

Detailed Description

The positional relationship described in the following embodiments includes: the top, bottom, left and right, unless otherwise indicated, are based on the orientation of the elements in the drawings.

In the embodiments of the present application, each lens includes an object-side surface facing the object and an image-side surface facing the image plane. The shape of the surface of each lens is defined according to the shape of the surface in the region near the optical axis (paraxial), for example, when the object side of a lens is described as convex, it means that the object side of the lens in the region near the optical axis is convex, that is, although the lens surface is described as convex in the embodiments, the surface may be convex or concave in the region away from the optical axis (off-axis). The shape of each lens at the paraxial region is determined by whether the radius of curvature of the surface is positive or negative, e.g., if the radius of curvature of the object-side surface of a lens is positive, the object-side surface is convex; conversely, if the radius of curvature is negative, the object side is concave. For the image side surface of one lens, if the curvature radius is positive, the image side surface is concave; conversely, if the radius of curvature is negative, the image-side surface is convex.

In embodiments of the present application, the object-side surface and the image-side surface of each lens may be spherical or aspherical surfaces. The aspheric surface is used on the lens to help correct imaging aberration of the optical image capturing lens group such as spherical aberration, and reduce the use number of the optical lens components. However, the use of the aspheric lens increases the cost of the overall optical image capturing lens assembly. Although some optical lenses in the embodiments of the present application use spherical surfaces, they can be designed to be aspherical if necessary; alternatively, some optical lenses use aspheric surfaces, but can be designed as spherical surfaces if desired.

In an embodiment of the present application, a total length ttl (total Track length) of the optical image capturing lens assembly is defined as a distance on an optical axis from an object side surface of the first lens element to an image plane of the optical image capturing lens assembly. The imaging height of the optical image capturing lens group is called as the maximum image height imgh (image height); when an image sensing device is disposed on the imaging plane, the maximum image height ImgH represents half of the diagonal length of the effective sensing area of the image sensing device. In the following embodiments, the unit of the radius of curvature of all lenses, the lens thickness, the distance between lenses, the total lens Length TTL, the maximum image height ImgH, and the Focal Length (Focal Length) is expressed in millimeters (mm).

Referring to fig. 6, an optical image capturing lens assembly of the present application is illustrated, which includes an aperture stop ST, a first lens element 1, a second lens element 2, a third lens element 3, and a fourth lens element 4. The optical image capturing lens assembly further includes a filter assembly 5 and an image plane 6. In the embodiment of the present application, the distance between the intersection point of the light ray passing through the center of the aperture and the image-side surface of the fourth lens at an incident angle of 35 degrees with respect to the optical axis and perpendicular to the optical axis I is defined as Ry 4.

The present application provides an optical image capturing lens assembly, in order from an object side to an image side comprising: the optical image capturing lens assembly further includes an aperture stop disposed between the object and the second lens element. The total number of the lenses of the optical image capturing lens group is four.

The first lens element with positive refractive power has a convex object-side surface and a convex image-side surface, and the object-side surface and the image-side surface of the first lens element at least include an aspheric surface. When the first lens is arranged behind the diaphragm, the whole length of the optical image capturing lens group is favorably controlled, and the miniaturization is facilitated. When the aperture is arranged between the first lens and the second lens, stray light caused by large-angle light rays can be eliminated to reduce imaging aberration.

The second lens element with positive refractive power has a concave object-side surface and a convex image-side surface, and the object-side surface and the image-side surface of the second lens element at least include an aspheric surface. In the optical image capturing lens assembly, the first lens element and the second lens element both have positive refractive power, which is favorable for properly distributing the positive refractive power to the two lens elements to reduce the imaging aberration. The concave surface is arranged on one side of the second lens facing the first lens, which is beneficial to adjusting the traveling path of the light rays converged by the first lens, so that the light rays can be smoothly transmitted to the imaging side, and the arrangement of the third lens and the fourth lens is facilitated.

The third lens element with negative refractive power has a concave object-side surface and a convex image-side surface, and the object-side surface and the image-side surface of the third lens element at least include an aspheric surface. The third lens is used for diverging light rays and is arranged behind the first lens and the second lens, so that proper image height can be achieved. The negative refractive power of the third lens element corresponds to the positive refractive power of the combination of the first and second lens elements, thereby facilitating the correction of field curvature aberration and spherical aberration.

The fourth lens element with positive refractive power has a convex object-side surface at paraxial region and a concave image-side surface at off-axis region, and has a concave image-side surface at paraxial region and a convex image-side surface at off-axis region; the object-side surface and the image-side surface of the fourth lens element are aspheric, and the object-side surface and the image-side surface of the fourth lens element each have at least one inflection point, which is favorable for further correcting imaging aberration.

The distance on the optical axis from the image side surface of the first lens to the object side surface of the second lens is TT1, the distance on the optical axis from the image side surface of the second lens to the object side surface of the third lens is TT2, the distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens is TT3, the thickness on the optical axis of the fourth lens is CT4, the effective focal length of the optical image capturing lens group is EFL, the incident angle is 35 degrees relative to the optical axis and the light ray passing through the center of the aperture stop is ray, the distance between the intersection point of the light ray and the image side surface of the fourth lens, which is perpendicular to the optical axis, is Ry4, and the following relations are satisfied:

1.2< EFL/(TT1+ TT2+ CT4) < 2.0; (1) and

4<Ry4/(TT2+TT3)<7； (2)

by satisfying the conditions of the relations (1) and (2), the total length of the optical image capturing lens assembly can be effectively shortened, the resolution can be improved, and the thin design of the lens assembly is facilitated.

The radius of curvature of the image-side surface of the third lens element is R6, and the radius of curvature of the object-side surface of the fourth lens element is R7, which satisfy the following relations:

-0.25<TT2/(R6-R7)<-0.08； (3)

by satisfying the condition of the relation (3), it is helpful to maintain a proper distance between the second lens and the third lens, and to control the corresponding shape between the image-side surface of the third lens and the object-side surface of the fourth lens, which is beneficial to correcting the imaging aberration.

The distance on the optical axis from the object-side surface of the first lens element to the image plane of the optical image capturing lens assembly is TTL, the curvature radius of the object-side surface of the second lens element is R3, and the curvature radius of the image-side surface of the second lens element is R4, which satisfy the following relations:

-1.7<TTL/(R3+R4)<-0.5； (4)

by satisfying the condition of the relation (4), the object-side surface and the image-side surface of the second lens element can have appropriate curvature radii, which is beneficial to reducing the processing difficulty of the optical image capturing lens assembly.

The focal length of the second lens is f2, the focal length of the third lens is f3, and the following relations are satisfied:

-0.5<f3/f2<-0.2； (5)

by satisfying the condition of the relation (5), the refractive power ratio of the second lens element and the third lens element can be controlled, which is beneficial to correcting the imaging aberration and shortening the total length of the lens.

The effective focal length EFL of the optical image capturing lens assembly and the curvature radius R7 of the object-side surface of the fourth lens element satisfy the following relation:

2.8<EFL/R7<4.3； (6)

by satisfying the condition of the relation (6), the object side surface of the fourth lens can have a proper curvature, which is beneficial to reducing the processing difficulty of the lens and reducing the imaging aberration.

The first lens has an Abbe number V1, the second lens has an Abbe number V2, the third lens has an Abbe number V3, and the fourth lens has an Abbe number V4, which satisfy the following relations:

-3.7<(V1+V2)/(V3-V4)<-2.6； (7)

by satisfying the condition of the relation (7), the lens materials of the first lens element, the second lens element, the third lens element and the fourth lens element can be selected appropriately, which is beneficial to correcting chromatic aberration of the optical image capturing lens assembly.

The curvature radius of the object side surface of the third lens is R5, the curvature radius of the image side surface of the third lens is R6, the focal length of the third lens is f3, and the following relations are satisfied:

0.8<(R5+R6)/f3<2.2； (8)

by satisfying the condition of the relation (7), the third lens element can have a suitable shape and refractive power, which is beneficial to reducing the imaging aberration and shortening the total length of the optical image capturing lens assembly.

The distance TT2 between the second lens image-side surface and the third lens object-side surface on the optical axis and the distance TT3 between the third lens image-side surface and the fourth lens object-side surface on the optical axis satisfy the following relation:

10<TT2/TT3<43； (9)

by satisfying the condition of the relation (9), the control of the ratio of the distance between the second lens and the third lens to the distance between the third lens and the fourth lens is facilitated, and the design of correcting imaging aberration and thinning the lens is facilitated.

First embodiment

Referring to fig. 1A and 1B, fig. 1A is a schematic diagram of an optical image capturing lens assembly according to a first embodiment of the present application. Fig. 1B is a Longitudinal Spherical Aberration diagram (Longitudinal Spherical Aberration), an astigmatic Field Curvature diagram (astigmatic/Field Curvature), and a aberrational Aberration diagram (Aberration) of the first embodiment of the present application, in order from left to right.

As shown in fig. 1A, the image capturing lens assembly 10 of the first embodiment includes, in order from an object side to an image side, an aperture stop ST, a first lens element 11, a second lens element 12, a third lens element 13 and a fourth lens element 14. The optical image capturing lens assembly 10 further includes a filter assembly 15 and an image plane 16. An image sensor assembly 100 may be further disposed on the imaging surface 16 to form an imaging device (not shown).

The first lens element 11 with positive refractive power has a convex object-side surface 11a and a convex image-side surface 11b, and both the object-side surface 11a and the image-side surface 11b are aspheric. In more detail, the object-side surface 11a of the first lens element 11 is convex at the paraxial region and convex at the off-axis region; the image-side surface 11b of the first lens element 11 is convex at the paraxial region and convex at the off-axis region. The first lens 11 is made of plastic.

The second lens element 12 with positive refractive power has a concave object-side surface 12a and a convex image-side surface 12b, and both the object-side surface 12a and the image-side surface 12b are aspheric. In more detail, the object-side surface 12a of the second lens element 12 is concave at the paraxial region and convex at the off-axis region; the image-side surface 12b of the second lens element 12 is convex at the paraxial region and concave at the off-axis region. The second lens element 12 is made of plastic.

The third lens element 13 with negative refractive power has a concave object-side surface 13a and a convex image-side surface 13b, and both the object-side surface 13a and the image-side surface 13b are aspheric. In more detail, the object-side surface 13a of the third lens element 13 is concave at the paraxial region and convex at the off-axis region; the image-side surface 13b of the third lens element 13 is convex at the paraxial region and concave at the off-axis region. The third lens 13 is made of plastic.

The fourth lens element 14 with positive refractive power has a convex object-side surface 14a and a concave image-side surface 14b, and both the object-side surface 14a and the image-side surface 14b are aspheric. In more detail, the object-side surface 14a of the fourth lens element 14 is convex at the paraxial region and concave at the off-axis region; the image side surface 14b of the fourth lens element 14 is concave at the paraxial region and convex at the off-axis region; the object side surface 14a and the image side surface 14b of the fourth lens element 14 each have an inflection point. The fourth lens element 14 is made of plastic.

The Filter element 15 is disposed between the fourth lens element 14 and the image plane 16 for filtering light of a specific wavelength range, such as an infrared Filter (IR Filter). The two

surfaces

15a, 15b of the filter element 15 are both flat and made of glass.

The Image Sensor Device 100 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor (CMOS) Image Sensor.

The curve equation of each aspherical surface described above is expressed as follows:

wherein, X: the distance between a point on the aspheric surface, which is Y away from the optical axis, and a tangent plane of the aspheric surface on the optical axis;

y: the vertical distance between a point on the aspheric surface and the optical axis;

r: a radius of curvature of the lens at the paraxial region;

k: the cone coefficient; and

ai: the ith order aspheric coefficients.

Please refer to the table i below, which shows detailed optical data of the optical image capturing lens assembly 10 according to the first embodiment of the present application. The object side surface 11a of the first lens element 11 is indicated as surface 11a, the image side surface 11b is indicated as surface 11b, and so on for the other lens surfaces. The value of the distance field in the table represents the distance on the optical axis I from the surface to the next surface, for example, the distance from the object side surface 11a to the image side surface 11b of the first lens 11 is 1.065mm, which represents that the thickness of the first lens 11 is 1.065 mm. The distance from the image side surface 11b of the first lens 11 to the object side surface 12a of the second lens 12 is 0.594 mm. Others may be so, and will not be repeated below. In the first embodiment, the effective focal length of the optical image capturing lens assembly 10 is EFL, the F-number is Fno, and half of the maximum viewing angle of the entire optical image capturing lens assembly 10 is hfov (half Field of view), which are also listed in table one.

Watch 1

Please refer to the second table below, which shows the aspheric coefficients of the lens surfaces of the first embodiment of the present application. Where K is the cone coefficient in the aspheric curve equation, A₄To A₁₆It represents the 4 th to 16 th order aspheric coefficients of each surface. For example, the cone coefficient K of the object side surface 11a of the first lens element 11 is-1.64. Others may be so, and will not be repeated below. In addition, the following tables of the embodiments correspond to the optical image capturing lens assembly of the embodiments, and the definitions of the tables are the same as those of the embodiments, so that detailed descriptions thereof are omitted in the following embodiments.

Watch two

In the first embodiment, an axial distance TT1 between the image-side surface of the first lens element and the object-side surface of the second lens element, an axial distance TT2 between the image-side surface of the second lens element and the object-side surface of the third lens element, and an axial thickness CT4 of the fourth lens element, and an effective focal length EFL of the optical image capturing lens assembly have a relationship of EFL/(TT1+ TT2+ CT4) of 1.87.

In the first embodiment, the distance TT2 between the image-side surface of the second lens and the object-side surface of the third lens and the distance TT3 between the image-side surface of the third lens and the object-side surface of the fourth lens on the optical axis, and the distance Ry4 between the light ray with the incident angle of 35 degrees relative to the optical axis and the intersection point of the light ray and the image-side surface of the fourth lens perpendicular to the optical axis have a relation Ry4/(TT2+ TT3) of 6.29.

In the first embodiment, the relationship between the radius of curvature R6 of the image-side surface of the third lens element, the radius of curvature R7 of the object-side surface of the fourth lens element, and the optical-axis distance TT2 between the image-side surface of the second lens element and the object-side surface of the third lens element is TT2/(R6-R7) — 0.16.

In the first embodiment, the relationship between the distance TTL on the optical axis from the object-side surface of the first lens element to the image plane of the optical image capturing lens assembly, the radius of curvature R3 of the object-side surface of the second lens element, and the radius of curvature R4 of the image-side surface is TTL/(R3+ R4) — 1.53.

In the first embodiment, the relationship between the focal length f2 of the second lens and the focal length f3 of the third lens is-0.23 at f3/f 2.

In the first embodiment, the relationship between the effective focal length EFL of the optical image capturing lens assembly and the radius of curvature R7 of the object-side surface of the fourth lens element is EFL/R7-3.93.

In the first embodiment, the relation between the abbe number V1 of the first lens, the abbe number V2 of the second lens, the abbe number V3 of the third lens, and the abbe number V4 of the fourth lens is-3.5 (V1+ V2)/(V3-V4).

In the first embodiment, the relationship between the radius of curvature R5 of the object-side surface and the radius of curvature R6 of the image-side surface of the third lens, and the focal length f3 of the third lens is (R5+ R6)/f3 equal to 1.0.

In the first embodiment, the relationship between the distance TT2 on the optical axis from the image-side surface of the second lens to the object-side surface of the third lens and the distance TT3 on the optical axis from the image-side surface of the third lens to the object-side surface of the fourth lens is TT2/TT3 equal to 14.07.

As can be seen from the numerical values of the above relations, the optical image capturing lens assembly 10 of the first embodiment satisfies the requirements of relations (1) to (9).

Referring to fig. 1B, a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of the optical image capturing lens assembly 10 are shown from left to right. It can be seen from the longitudinal spherical aberration diagram that off-axis light rays with the wavelengths of 470nm, 555nm and 650nm of the three visible lights at different heights can be concentrated near an imaging point, and the deviation of the imaging point can be controlled within +/-0.07 mm. As can be seen from the astigmatic field curvature aberration diagram (with a wavelength of 555nm), the focal length variation of the aberration in the sagittal direction in the whole field range is within +/-0.04 mm; the focal length variation of the aberration in the meridional direction in the whole field of view is within +/-0.06 mm; and the distortion aberration can be controlled within 2%. As shown in fig. 1B, the optical image capturing lens assembly 10 of the present embodiment has well corrected various aberrations, and meets the requirement of the optical system for image quality.

Second embodiment

Referring to fig. 2A and fig. 2B, fig. 2A is a schematic view of an optical image capturing lens assembly according to a second embodiment of the present application. FIG. 2B is a Longitudinal Spherical Aberration diagram (Longitudinal Spherical Aberration diagram), an astigmatic Field Curvature diagram (astigmatic/Field Curvature diagram) and a aberrational Aberration diagram (Aberration) of the second embodiment of the present application, from left to right, in this order.

As shown in fig. 2A, the image capturing lens assembly 20 of the second embodiment includes, in order from an object side to an image side, an aperture stop ST, a first lens element 21, a second lens element 22, a third lens element 23 and a fourth lens element 24. The optical image capturing lens assembly 20 further includes a filter 25 and an image plane 26. An image sensor assembly 200 may be further disposed on the imaging surface 26 to form an imaging device (not shown).

The first lens element 21 with positive refractive power has a convex object-side surface 21a and a convex image-side surface 21b, and both the object-side surface 21a and the image-side surface 21b are aspheric. In more detail, the object-side surface 21a of the first lens element 21 is convex at the paraxial region and convex at the off-axis region; the image-side surface 21b of the first lens element 21 is convex at the paraxial region and convex at the off-axis region. The first lens 21 is made of plastic.

The second lens element 22 with positive refractive power has a concave object-side surface 22a and a convex image-side surface 22b, and both the object-side surface 22a and the image-side surface 22b are aspheric. In more detail, the object-side surface 22a of the second lens element 22 is concave at the paraxial region and convex at the off-axis region; the image-side surface 22b of the second lens element 22 is convex at the paraxial region and concave at the off-axis region. The second lens 22 is made of plastic.

The third lens element 23 with negative refractive power has a concave object-side surface 23a and a convex image-side surface 23b, and both the object-side surface 23a and the image-side surface 23b are aspheric. In more detail, the object-side surface 23a of the third lens element 23 is concave at the paraxial region and convex at the off-axis region; the image-side surface 23b of the third lens element 23 is convex at the paraxial region and concave at the off-axis region. The third lens 23 is made of plastic.

The fourth lens element 24 with positive refractive power has a convex object-side surface 24a and a concave image-side surface 24b, and both the object-side surface 24a and the image-side surface 24b are aspheric. In more detail, the object-side surface 24a of the fourth lens element 24 is convex at the paraxial region and concave at the off-axis region; the image side surface 24b of the fourth lens element 24 is concave at the paraxial region and convex at the off-axis region; the object-side surface 24a and the image-side surface 24b of the fourth lens element 24 each have an inflection point. The fourth lens element 24 is made of plastic.

The Filter 25 is disposed between the fourth lens element 24 and the image plane 26 for filtering light of a specific wavelength range, such as an infrared Filter (IR Filter). Both

surfaces

25a, 25b of the filter element 25 are flat and made of glass.

The Image Sensor Device 200 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor (CMOS) Image Sensor.

The detailed optical data and the aspheric coefficients of the lens surface of the image capturing optical lens assembly 20 of the second embodiment are listed in table three and table four, respectively. In the second embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment.

Watch III

Watch four

In the second embodiment, the numerical values of the relations of the optical image capturing lens assembly 20 are listed in table five. As can be seen from table five, the optical image capturing lens assembly 20 of the second embodiment satisfies the requirements of the relations (1) to (9).

No.	Relation formula	Numerical value
			1	EFL/(TT1+TT2+CT4)	1.89
2	Ry4/(TT2+TT3)	6.43
			3	TT2/(R6-R7)	-0.15
4	TTL/(R3+R4)	-1.54
			5	f3/f2	-0.24
6	EFL/R7	3.91
			7	(V1+V2)/(V3-V4)	-3.50
8	(R5+R6)/f3	1.0
			9	TT2/TT3	13.76

Watch five

Referring to fig. 2B, a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of the optical image capturing lens assembly 20 are shown from left to right. It can be seen from the longitudinal spherical aberration diagram that off-axis light rays with the wavelengths of 470nm, 555nm and 650nm of the three visible lights at different heights can be concentrated near an imaging point, and the deviation of the imaging point can be controlled within +/-0.06 mm. As can be seen from the astigmatic field curvature aberration diagram (with a wavelength of 555nm), the focal length variation of the aberration in the sagittal direction in the whole field range is within +/-0.04 mm; the focal length variation of the aberration in the meridional direction in the whole field of view is within +/-0.06 mm; and the distortion aberration can be controlled within 2%. As shown in fig. 2B, the optical image capturing lens assembly 20 of the present embodiment has well corrected various aberrations, and meets the requirement of the optical system for image quality.

Third embodiment

Referring to fig. 3A and 3B, fig. 3A is a schematic view of an optical image capturing lens assembly according to a third embodiment of the present application. FIG. 3B is a Longitudinal Spherical Aberration diagram (Longitudinal Spherical Aberration diagram), an astigmatic Field Curvature diagram (astigmatic/Field Curvature diagram) and a aberrational Aberration diagram (Aberration) of the third embodiment of the present application, from left to right, in this order.

As shown in fig. 3A, the image capturing lens assembly 30 of the third embodiment includes, in order from an object side to an image side, a first lens element 31, an aperture stop ST, a second lens element 32, a third lens element 33 and a fourth lens element 34. The optical image capturing lens assembly 30 further includes a filter 35 and an image plane 36. An image sensor assembly 300 may be further disposed on the imaging surface 36 to form an imaging device (not shown).

The first lens element 31 with positive refractive power has a convex object-side surface 31a and a convex image-side surface 31b, and both the object-side surface 31a and the image-side surface 31b are aspheric. In more detail, the object-side surface 31a of the first lens 31 is convex at the paraxial region and concave at the off-axis region; the image-side surface 31b of the first lens element 31 is convex at the paraxial region and convex at the off-axis region. The first lens 31 is made of plastic.

The second lens element 32 with positive refractive power has a concave object-side surface 32a and a convex image-side surface 32b, and both the object-side surface 32a and the image-side surface 32b are aspheric. In more detail, the object side surface 32a of the second lens 32 is concave at the paraxial region and concave at the off-axis region; the image-side surface 32b of the second lens element 32 is convex at the paraxial region and concave at the off-axis region. The second lens 32 is made of plastic.

The third lens element 33 with negative refractive power has a concave object-side surface 33a and a convex image-side surface 33b, and both the object-side surface 33a and the image-side surface 33b are aspheric. In more detail, the object-side surface 33a of the third lens element 33 is concave at the paraxial region and convex at the off-axis region; the image-side surface 33b of the third lens element 33 is convex at the paraxial region and convex at the off-axis region. The third lens element 33 is made of plastic.

The fourth lens element 34 with positive refractive power has a convex object-side surface 34a and a concave image-side surface 34b, and both the object-side surface 34a and the image-side surface 34b are aspheric. In more detail, the object-side surface 34a of the fourth lens element 34 is convex at the paraxial region and concave at the off-axis region; the image side surface 34b of the fourth lens element 34 is concave at the paraxial region and convex at the off-axis region; the object side surface 34a and the image side surface 34b of the fourth lens element 34 each have an inflection point. The fourth lens element 34 is made of plastic.

The Filter 35 is disposed between the fourth lens element 34 and the image plane 36 for filtering light of a specific wavelength range, such as an infrared Filter (IR Filter). The two

surfaces

35a, 35b of the filter element 35 are both flat and made of glass.

The Image Sensor Device 300 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor (CMOS) Image Sensor.

The detailed optical data and aspheric coefficients of the lens surface of the optical image capturing lens assembly 30 of the third embodiment are respectively listed in table six and table seven. In the third embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment.

Watch six

Watch seven

In the third embodiment, the numerical values of the relations of the optical image capturing lens assembly 30 are listed in table eight. As can be seen from the table eight, the optical image capturing lens assembly 30 of the third embodiment satisfies the requirements of the relations (1) to (9).

Table eight

Referring to fig. 3B, a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of the optical image capturing lens assembly 30 are shown from left to right. It can be seen from the longitudinal spherical aberration diagram that off-axis light rays with the wavelengths of 470nm, 555nm and 650nm of the three visible lights at different heights can be concentrated near an imaging point, and the deviation of the imaging point can be controlled within +/-0.03 mm. As can be seen from the astigmatic field curvature aberration diagram (with a wavelength of 555nm), the focal length variation of the aberration in the sagittal direction in the whole field range is within +/-0.04 mm; the focal length variation of the aberration in the meridional direction in the whole field of view is within +/-0.05 mm; and the distortion aberration can be controlled within 2%. As shown in fig. 3B, the optical image capturing lens assembly 30 of the present embodiment has well corrected various aberrations, and meets the requirement of the optical system for image quality.

Fourth embodiment

Referring to fig. 4A and 4B, fig. 4A is a schematic view of an optical image capturing lens assembly according to a fourth embodiment of the present application. FIG. 4B is a Longitudinal Spherical Aberration diagram (Longitudinal Spherical Aberration diagram), an astigmatic Field Curvature diagram (astigmatic/Field Curvature diagram) and a aberrational Aberration diagram (Aberration) of the fourth embodiment of the present application, in order from left to right.

As shown in fig. 4A, the image capturing lens assembly 40 of the fourth embodiment includes, in order from an object side to an image side, an aperture stop ST, a first lens element 41, a second lens element 42, a third lens element 43 and a fourth lens element 44. The optical image capturing lens assembly 40 further includes a filter assembly 45 and an image plane 46. An image sensor assembly 400 may be further disposed on the image plane 46 to form an image device (not shown).

The first lens element 41 with positive refractive power has a convex object-side surface 41a and a convex image-side surface 41b, and both the object-side surface 41a and the image-side surface 41b are aspheric. In more detail, the object-side surface 41a of the first lens 41 is convex at the paraxial region and convex at the off-axis region; the image-side surface 41b of the first lens element 41 is convex at the paraxial region and convex at the off-axis region. The first lens 41 is made of glass.

The second lens element 42 with positive refractive power has a concave object-side surface 42a and a convex image-side surface 42b, and both the object-side surface 42a and the image-side surface 42b are aspheric. In more detail, the object-side surface 42a of the second lens 42 is concave at the paraxial region and concave at the off-axis region; the image-side surface 42b of the second lens element 42 is convex at the paraxial region and concave at the off-axis region. The second lens 42 is made of plastic.

The third lens element 43 with negative refractive power has a concave object-side surface 43a and a convex image-side surface 43b, and both the object-side surface 43a and the image-side surface 43b are aspheric. In more detail, the object-side surface 43a of the third lens element 43 is concave at the paraxial region and convex at the off-axis region; the image-side surface 43b of the third lens element 43 is convex at the paraxial region and concave at the off-axis region. The third lens 43 is made of plastic.

The fourth lens element 44 with positive refractive power has a convex object-side surface 44a and a concave image-side surface 44b, and both the object-side surface 44a and the image-side surface 44b are aspheric. In more detail, the object-side surface 44a of the fourth lens element 44 is convex at the paraxial region and concave at the off-axis region; the image-side surface 44b of the fourth lens element 44 is concave at the paraxial region and convex at the off-axis region; the object-side surface 44a and the image-side surface 44b of the fourth lens element 44 each have an inflection point. The fourth lens element 44 is made of plastic.

The Filter element 45 is disposed between the fourth lens element 44 and the image plane 46 for filtering light of a specific wavelength range, such as an infrared Filter (IR Filter). The two

surfaces

45a and 45b of the filter element 45 are flat and made of glass.

The Image Sensor Device 400 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor (CMOS) Image Sensor.

The detailed optical data and aspheric coefficients of the lens surface of the optical image capturing lens assembly 40 of the fourth embodiment are respectively listed in table nine and table ten. In the fourth embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment.

Watch nine

Watch ten

In the fourth embodiment, the numerical values of the relations of the optical image capturing lens assembly 40 are listed in table eleven. As can be seen from table eleven, the optical image capturing lens assembly 40 of the fourth embodiment satisfies the requirements of the relations (1) to (9).

No.	Relation formula	Numerical value
			1	EFL/(TT1+TT2+CT4)	1.75
2	Ry4/(TT2+TT3)	6.20
			3	TT2/(R6-R7)	-0.15
4	TTL/(R3+R4)	-1.23
			5	f3/f2	-0.24
6	EFL/R7	3.70
			7	(V1+V2)/(V3-V4)	-3.47
8	(R5+R6)/f3	1.06
			9	TT2/TT3	15.37

Watch eleven

Referring to fig. 4B, a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of the optical image capturing lens assembly 40 are shown from left to right. It can be seen from the longitudinal spherical aberration diagram that off-axis light rays with the wavelengths of 470nm, 555nm and 650nm of the three visible lights at different heights can be concentrated near an imaging point, and the deviation of the imaging point can be controlled within +/-0.03 mm. As can be seen from the astigmatic field curvature aberration diagram (with a wavelength of 555nm), the focal length variation of the aberration in the sagittal direction in the whole field range is within +/-0.03 mm; the variation of focal length of the aberration in the meridional direction in the whole field of view is within +/-0.08 mm; and the distortion aberration can be controlled within 1%. As shown in fig. 4B, the optical image capturing lens assembly 40 of the present embodiment has well corrected various aberrations, and meets the requirement of the optical system for image quality.

Fifth embodiment

Referring to fig. 5A and 5B, fig. 5A is a schematic view of an optical image capturing lens assembly according to a fifth embodiment of the present application. Fig. 5B is a Longitudinal Spherical Aberration diagram (Longitudinal Spherical Aberration), an astigmatic Field Curvature diagram (astigmatic/Field Curvature), and a aberrational Aberration diagram (Aberration) of the fifth embodiment of the present application, in order from left to right.

As shown in fig. 5A, the image capturing lens assembly 50 of the fifth embodiment includes, in order from an object side to an image side, an aperture stop ST, a first lens element 51, a second lens element 52, a third lens element 53 and a fourth lens element 54. The optical image capturing lens assembly 50 further includes a filter assembly 55 and an image plane 56. An image sensor assembly 500 may be further disposed on the imaging surface 56 to form an imaging device (not shown).

The first lens element 51 with positive refractive power has a convex object-side surface 51a and a convex image-side surface 51b, and both the object-side surface 51a and the image-side surface 51b are aspheric. In more detail, the object-side surface 51a of the first lens element 51 is convex at the paraxial region and convex at the off-axis region; the image-side surface 51b of the first lens element 51 is convex at the paraxial region and convex at the off-axis region. The first lens 51 is made of glass.

The second lens element 52 with positive refractive power has a concave object-side surface 52a and a convex image-side surface 52b, and both the object-side surface 52a and the image-side surface 52b are aspheric. In more detail, the object-side surface 52a of the second lens 52 is concave at the paraxial region and concave at the off-axis region; the image-side surface 52b of the second lens element 52 is convex at the paraxial region and convex at the off-axis region. The second lens 52 is made of plastic.

The third lens element 53 with negative refractive power has a concave object-side surface 53a and a convex image-side surface 53b, and both the object-side surface 53a and the image-side surface 53b are aspheric. In more detail, the object-side surface 53a of the third lens 53 is concave at the paraxial region and convex at the off-axis region; the image-side surface 53b of the third lens element 53 is convex at the paraxial region and concave at the off-axis region. The third lens 53 is made of plastic.

The fourth lens element 54 with positive refractive power has a convex object-side surface 54a and a concave image-side surface 54b, and both the object-side surface 54a and the image-side surface 54b are aspheric. In more detail, the object-side surface 54a of the fourth lens 54 is convex at the paraxial region and concave at the off-axis region; the image-side surface 54b of the fourth lens element 54 is concave at the paraxial region and convex at the off-axis region; the object side surface 54a and the image side surface 54b of the fourth lens element 54 each have an inflection point. The fourth lens 54 is made of plastic.

The Filter element 55 is disposed between the fourth lens element 54 and the image plane 56 for filtering light of a specific wavelength range, such as an infrared Filter (IR Filter). Both surfaces 55a and 55b of the filter element 55 are flat and made of glass.

The Image Sensor Device 500 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor (CMOS) Image Sensor.

The detailed optical data and aspheric coefficients of the lens surface of the optical image capturing lens assembly 50 of the fifth embodiment are respectively listed in table twelve and table thirteen. In the fifth embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment.

Watch twelve

Watch thirteen

In the fifth embodiment, the numerical values of the relations of the optical image capturing lens assembly 50 are listed in table fourteen. As can be seen from the table fourteen, the optical image capturing lens assembly 50 of the fifth embodiment satisfies the requirements of the relations (1) to (9).

Table fourteen

Referring to fig. 5B, a longitudinal spherical aberration diagram, an astigmatic field curvature aberration diagram, and a distortion aberration diagram of the optical image capturing lens assembly 50 are shown from left to right. It can be seen from the longitudinal spherical aberration diagram that off-axis light rays with the wavelengths of 470nm, 555nm and 650nm of the three visible lights at different heights can be concentrated near an imaging point, and the deviation of the imaging point can be controlled within +/-0.02 mm. As can be seen from the astigmatic field curvature aberration diagram (with a wavelength of 555nm), the focal length variation of the aberration in the sagittal direction in the whole field range is within +/-0.06 mm; the focal length variation of the aberration in the meridional direction in the whole field of view is within +/-0.05 mm; and the distortion aberration can be controlled within 2%. As shown in fig. 5B, the optical image capturing lens assembly 50 of the present embodiment has well corrected various aberrations, and meets the requirement of the optical system for image quality.

Sixth embodiment

A sixth embodiment of the present application is an imaging device, which includes the optical image capturing lens assembly according to the first to fifth embodiments, and an image sensing assembly; the image sensing assembly is arranged on an imaging surface of the optical image capturing lens group. The image sensor Device is, for example, a Charge-Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) image sensor Device.

Seventh embodiment

Referring to fig. 7, an electronic device 1000 according to a seventh embodiment of the present application is shown, the electronic device 1000 including an imaging device 1010 according to a sixth embodiment.

The above-described embodiments and/or implementations are only for illustrating the preferred embodiments and/or implementations of the technology of the present application, and are not intended to limit the implementations of the technology of the present application in any way, and those skilled in the art can make modifications or changes to other equivalent embodiments without departing from the scope of the technology disclosed in the present application, but should be construed as technology or implementations substantially the same as the present application.

Claims

1. An optical image capturing lens assembly, in order from an object side to an image side, comprising:

a first lens element with positive refractive power having a convex object-side surface and a convex image-side surface, wherein at least one of the object-side surface and the image-side surface is aspheric;

a second lens element with positive refractive power having a concave object-side surface and a convex image-side surface, wherein at least one of the object-side surface and the image-side surface is aspheric;

a third lens element with negative refractive power having a concave object-side surface and a convex image-side surface, wherein at least one of the object-side surface and the image-side surface is aspheric; and

a fourth lens element with positive refractive power having a convex object-side surface and a concave image-side surface, wherein the object-side surface is convex at the paraxial region and the off-axis region is concave, the image-side surface is concave at the paraxial region and the off-axis region is convex, both the object-side surface and the image-side surface of the fourth lens element are aspheric, and the object-side surface and the image-side surface of the fourth lens element each have at least one inflection point; wherein, the total number of the lenses of the optical image capturing lens group is four; the optical image capturing lens assembly further comprises an aperture, wherein the aperture is arranged between a shot object and the second lens; an axial distance between the image-side surface of the first lens element and the object-side surface of the second lens element is TT1, an axial distance between the image-side surface of the second lens element and the object-side surface of the third lens element is TT2, an axial distance between the image-side surface of the third lens element and the object-side surface of the fourth lens element is TT3, an axial thickness of the fourth lens element is CT4, an effective focal length of the optical image capturing lens assembly is EFL, an incident angle of 35 degrees with respect to an optical axis is a light ray passing through a center of an aperture stop, and a distance between the light ray and an intersection point of the image-side surface of the fourth lens element perpendicular to the optical axis is Ry4, and the following relations are satisfied:

1.2< EFL/(TT1+ TT2+ CT4) < 2.0; and

4<Ry4/(TT2+TT3)<7。

2. the image capturing lens assembly of claim 1, wherein the radius of curvature of the image-side surface of the third lens element is R6, and the radius of curvature of the object-side surface of the fourth lens element is R7, satisfying the following relationship:

-0.25<TT2/(R6-R7)<-0.08。

3. the image capturing lens assembly of claim 1, wherein the focal length of the second lens element is f2, and the focal length of the third lens element is f3, satisfying the following relationships:

-0.5<f3/f2<-0.2。

4. the image capturing optical lens assembly of claim 1, wherein the effective focal length EFL and the radius of curvature R7 of the object-side surface of the fourth lens element satisfy the following relationship:

2.8<EFL/R7<4.3。

5. the image capturing lens assembly of claim 1, wherein the first lens element has an Abbe number V1, the second lens element has an Abbe number V2, the third lens element has an Abbe number V3, and the fourth lens element has an Abbe number V4, satisfying the following relationships:

-3.7<(V1+V2)/(V3-V4)<-2.6。

6. the image capturing optical lens assembly of claim 1, wherein the third lens element has an object-side surface curvature radius of R5, an image-side surface curvature radius of R6, and a focal length of f3, satisfying the following relationship:

0.8<(R5+R6)/f3<2.2。

7. the image capturing optical lens assembly of claim 1, wherein an axial distance TT2 between the image-side surface of the second lens element and the object-side surface of the third lens element and an axial distance TT3 between the image-side surface of the third lens element and the object-side surface of the fourth lens element satisfy the following relationship:

10<TT2/TT3<43。

8. an optical image capturing lens assembly, in order from an object side to an image side, comprising:

a fourth lens element with positive refractive power having a convex object-side surface and a concave image-side surface, wherein the object-side surface is convex at the paraxial region and the off-axis region is concave, the image-side surface is concave at the paraxial region and the off-axis region is convex, both the object-side surface and the image-side surface of the fourth lens element are aspheric, and the object-side surface and the image-side surface of the fourth lens element each have at least one inflection point; wherein, the total number of the lenses of the optical image capturing lens group is four; the optical image capturing lens assembly further comprises an aperture, wherein the aperture is arranged between a shot object and the second lens; an axial distance between the image-side surface of the first lens element and the object-side surface of the second lens element is TT1, an axial distance between the image-side surface of the second lens element and the object-side surface of the third lens element is TT2, an axial distance between the object-side surface of the first lens element and the image-side surface of the optical image capturing lens assembly is TTL, a radius of curvature of the object-side surface of the second lens element is R3, and a radius of curvature of the image-side surface is R4, which satisfy the following relations:

1.2< EFL/(TT1+ TT2+ CT4) < 2.0; and

-1.7<TTL/(R3+R4)<-0.5。

9. the image capturing optical lens assembly of claim 8, wherein an axial distance between the image-side surface of the second lens element and the object-side surface of the third lens element is TT2, an axial distance between the image-side surface of the third lens element and the object-side surface of the fourth lens element is TT3, an effective focal length of the image capturing optical lens assembly is EFL, a distance Ry4 between an intersection of the light beam and the image-side surface of the fourth lens element perpendicular to the optical axis is 35 degrees with respect to the optical axis, and the following relationships are satisfied:

4<Ry4/(TT2+TT3)<7。

10. the image capturing lens assembly of claim 8, wherein the radius of curvature of the image-side surface of the third lens element is R6, and the radius of curvature of the object-side surface of the fourth lens element is R7, satisfying the following relationship:

-0.25<TT2/(R6-R7)<-0.08。

11. the image capturing lens assembly of claim 8, wherein the focal length of the second lens element is f2, and the focal length of the third lens element is f3, satisfying the following relationship:

-0.5<f3/f2<-0.2。

12. the image capturing optical lens assembly of claim 8, wherein the effective focal length EFL and the radius of curvature R7 of the object-side surface of the fourth lens element satisfy the following relationship:

2.8<EFL/R7<4.3。

13. the image capturing lens assembly of claim 8, wherein the first lens element has an Abbe number V1, the second lens element has an Abbe number V2, the third lens element has an Abbe number V3, and the fourth lens element has an Abbe number V4, satisfying the following relationships:

-3.7<(V1+V2)/(V3-V4)<-2.6。

14. the image capturing lens assembly of claim 8, wherein the radius of curvature of the object-side surface of the third lens element is R5, the radius of curvature of the image-side surface of the third lens element is R6, and the focal length of the third lens element is f3, satisfying the following relationship:

0.8<(R5+R6)/f3<2.2。

15. the image capturing lens assembly of claim 8, wherein an axial distance TT2 between the image-side surface of the second lens element and the object-side surface of the third lens element and an axial distance TT3 between the image-side surface of the third lens element and the object-side surface of the fourth lens element satisfy the following relationship:

10<TT2/TT3<43。

16. an imaging device, comprising the optical image capturing lens assembly of claim 1 or 8, and an image sensor, wherein the image sensor is disposed on an image plane of the optical image capturing lens assembly.

17. An electronic device characterized in that it comprises an imaging device employing claim 16.