OPTICAL LENS ASSEMBLY AND PHOTOGRAPHING MODULE

An optical lens assembly includes a stop, and includes, in order from the object side to the image side: a first lens, a second lens, a third lens, a fourth lens, and fifth lens, wherein a focal length of the fifth lens is f5, a radius of curvature of an image-side surface of the fifth lens is R10, a distance between the stop to the image plane on the optical axis is SL, satisfying the relation:  1.27<f5*R10/SL<3.68.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of Taiwan Patent Application No. 112119882, filed on May 29, 2023, which is hereby incorporated by reference for all purposes as if fully set forth herein.

BACKGROUND

Technical Field

The present disclosure relates to an optical lens assembly and a photographing module, and in particular, to an optical lens assembly and a photographing module applicable to an electronic device.

Related Art

In today's age of rapid developed technology, 3D sensing technology has been widely used in mobile phones, drones, sweeping robots and other fields. However, in these technological applications, in order to achieve better image effects, the lens module must have the characteristics of a large optical aperture and a wide angle of view, thereby capturing more light and a wider field of view, wherein the excellent performance of the lens module plays an important role in the development of 3D sensing technology.

At present, most lens module designs of TOF (Time-of-Flight) that are used for super large apertures and large angle of view require long length of the lens module and are prone to distortion. The factor of long length of the lens module has a negative impact on image quality. In addition, there is short length of the lens module, but they often need to sacrifice the view angle and relative illumination, which cannot meet the requirements of some special technological applications. Therefore, how to achieve large view angle, high relative illuminance and miniaturized lens module is one of the important directions of current optical lens module research.

SUMMARY

An objective of the present disclosure is to resolve the above problems of the prior art. In order to achieve the above objective, the present disclosure provides an optical lens assembly comprising a stop, and in order from an object side to an image side, comprising: a first lens with negative refractive power; a second lens with positive refractive power, comprising an object-side surface and an image-side surface, wherein the object-side surface of the second lens is convex near the optical axis, and the image-side surface of the second lens is convex near the optical axis; a third lens with negative refractive power, comprising an object-side surface and an image-side surface, wherein the image-side surface of the third lens is concave near the optical axis; a fourth lens with positive refractive power; and a fifth lens with positive refractive power, comprising an object-side surface and an image-side surface, wherein the object-side surface of the fifth lens is convex near the optical axis, and the image-side surface of the fifth lens is concave near the optical axis.

A total quantity of lenses with refractive power in the optical lens assembly is five. A focal length of the fifth lens is f5, a curvature radius of an image-side surface of the fifth lens is R10, a distance from the stop to the image plane along the optical axis is SL, and the following conditions are satisfied:

When the optical lens assembly satisfies the conditions of 1.27 (mm)<f5*R10/SL<3.68 (mm), the aberration of the optical lens assembly can be corrected by more suitable refractive power distribution of the optical lens assembly, so as to improving the image quality of the optical lens assembly.

A maximum image height of the optical lens assembly is IMH, an entrance pupil diameter of the optical lens assembly is EPD, and the following conditions are satisfied: 1.18<IMH/EPD<2.03. In this way, the optical lens assembly has a relatively large amount of incident light by the proper configuration of the maximum image height and the entrance pupil diameter.

A central thickness of the second lens along the optical axis is CT2, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, and the following condition is satisfied:

In this way, the formability of optical lens assembly can be optimally balanced to be easily manufactured by the proper configuration of these lens thicknesses.

A focal length of the fifth lens is f5, a distance from the image-side surface of the second lens to the object-side surface of the third lens along the optical axis is T23, a distance from the image-side surface of the third lens to the object-side surface of the fourth lens along the optical axis is T34, a distance from the image-side surface of the fourth lens to the object-side surface of the fifth lens along the optical axis is T45, and the following condition is satisfied:

In this way, the space configuration of the optical lens assembly is more appropriate, so as to achieve the effects of reducing space and reducing the height of the lens module.

A curvature radius of an object-side surface of the first lens is R1, a central thickness of the first lens along the optical axis is CT1, a distance from the image-side surface of the first lens to the object-side surface of the second lens along the optical axis is T12, and the following condition is satisfied:

In this way, the formability of optical lens assembly can be optimally balanced to be easily manufactured.

A distance from the stop to the image plane along the optical axis is SL, a maximum image height of the optical lens assembly is IMH, and the following condition is satisfied:

In this way, the space configuration of the optical lens assembly is more appropriate, so as to achieve the effects of reducing space of the optical lens assembly and reducing the height of the lens module.

A distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In this way, this proper configuration helps to obtain a proper balance of the active area of image plane while the optical lens assembly is miniaturized.

A distance from the stop to the image plane along the optical axis is SL, a focal length of the optical lens assembly is f, and the following conditions are satisfied: 2.20<SL/f<3.67. In this way, the space configuration of the optical lens assembly is more appropriate, so as to achieve the effects of reducing space of the optical lens assembly and reducing the height of the lens module.

A half of a maximum field of view of the optical lens assembly is HFOV, a focal length of the fifth lens is f5, a curvature radius of an image-side surface of the fifth lens is R10, and the following conditions are satisfied:

In this way, the optical lens assembly can still maintain better image quality under a large angle of view, and it is helpful to realize the effect of miniaturization.

A distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a distance from the image-side surface of the fifth lens to the image plane along the optical axis is BFL, a maximum image height of the optical lens assembly is IMH, a focal length of the optical lens assembly is f, and the following conditions are satisfied:

In this way, the spatial configuration of the optical lens assembly can be optimized, and the height of the lens module can be reduced.

A distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a distance from the stop to the image plane along the optical axis is SL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In this way, the spatial configuration of the optical lens assembly can be optimized, and the height of the lens module can be reduced.

A focal length of the second lens is f2, a focal length of the fifth lens is f5, a focal length of the optical lens assembly is f, a distance from the stop to the image plane along the optical axis is SL, and the following conditions are satisfied:

In this way, the appropriate distribution of the refractive power of the lenses is beneficial to correct the aberration of the optical lens assembly and improve the image quality of the optical lens assembly.

A focal length of the optical lens assembly is f, a maximum image height of the optical lens assembly is IMH, a curvature radius of the object-side surface of the first lens is R1, a curvature radius of an image-side surface of the fifth lens is R10, and the following conditions are satisfied:

In this way, the refractive power and the curvature of the lenses of the optical lens assembly reach an optimal ratio, which is beneficial to correct the aberration of the optical lens assembly and improve the image quality of the optical lens assembly.

An entrance pupil diameter of the optical lens assembly is EPD, a curvature radius of the object-side surface of the third lens is R5, a distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In this way, the proper configuration helps to obtain a proper balance of the active area of image plane while the optical lens assembly is miniaturized.

A central thickness of the second lens along the optical axis is CT2, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, a central thickness of the fifth lens along the optical axis is CT5, and the following condition is satisfied:

In this way, the performance of the optical lens assembly and the formability of the lenses can be taken into account to be easily manufactured by properly adjusting the thickness distribution of the lenses.

A central thickness of the first lens along the optical axis is CT1, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, a central thickness of the fifth lens along the optical axis is CT5, and the following condition is satisfied:

In this way, the performance of the optical lens assembly and the formability of the lenses can be taken into account to be easily manufactured by properly adjusting the thickness distribution of the lenses.

In addition, the present disclosure further provides a photographing module. The photographing module comprises: a lens barrel; an optical lens assembly disposed in the lens barrel; and an image sensor disposed on an image plane of the optical lens assembly.

The optical lens assembly comprises a stop, and in order from an object side to an image side, comprises: a first lens with negative refractive power; a second lens with positive refractive power, comprising an object-side surface and an image-side surface, wherein the object-side surface of the second lens is convex near the optical axis, and the image-side surface of the second lens is convex near the optical axis; a third lens with negative refractive power, comprising an object-side surface and an image-side surface, wherein the image-side surface of the third lens is concave near the optical axis; a fourth lens with positive refractive power; and a fifth lens with positive refractive power, comprising an object-side surface and an image-side surface, wherein the object-side surface of the fifth lens is convex near the optical axis, and the image-side surface of the fifth lens is concave near the optical axis.

A total quantity of lenses with refractive power in the optical lens assembly is five. A focal length of the fifth lens is f5, a curvature radius of an image-side surface of the fifth lens is R10, a distance from the stop to the image plane along the optical axis is SL, and the following conditions are satisfied:

When the optical lens assembly satisfies the conditions of

the aberration of the optical lens assembly can be corrected by more suitable refractive power distribution of the optical lens assembly, so as to improving the image quality of the optical lens assembly.

A maximum image height of the optical lens assembly is IMH, an entrance pupil diameter of the optical lens assembly is EPD, and the following conditions are satisfied:

In this way, the optical lens assembly has a relatively large amount of incident light by the proper configuration of the maximum image height and the entrance pupil diameter.

A central thickness of the second lens along the optical axis is CT2, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, and the following condition is satisfied:

In this way, the formability of optical lens assembly can be optimally balanced to be easily manufactured by the proper configuration of these lens thicknesses.

A focal length of the fifth lens is f5, a distance from the image-side surface of the second lens to the object-side surface of the third lens along the optical axis is T23, a distance from the image-side surface of the third lens to the object-side surface of the fourth lens along the optical axis is T34, a distance from the image-side surface of the fourth lens to the object-side surface of the fifth lens along the optical axis is T45, and the following condition is satisfied:

In this way, the space configuration of the optical lens assembly is more appropriate, so as to achieve the effects of reducing space and reducing the height of the lens module.

A curvature radius of an object-side surface of the first lens is R1, a central thickness of the first lens along the optical axis is CT1, a distance from the image-side surface of the first lens to the object-side surface of the second lens along the optical axis is T12, and the following condition is satisfied:

In this way, the formability of optical lens assembly can be optimally balanced to be easily manufactured.

A distance from the stop to the image plane along the optical axis is SL, a maximum image height of the optical lens assembly is IMH, and the following condition is satisfied:

In this way, the space configuration of the optical lens assembly is more appropriate, so as to achieve the effects of reducing space of the optical lens assembly and reducing the height of the lens module.

A distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In this way, this proper configuration helps to obtain a proper balance of the active area of image plane while the optical lens assembly is miniaturized.

A distance from the stop to the image plane along the optical axis is SL, a focal length of the optical lens assembly is f, and the following conditions are satisfied:

In this way, the space configuration of the optical lens assembly is more appropriate, so as to achieve the effects of reducing space of the optical lens assembly and reducing the height of the lens module.

A half of a maximum field of view of the optical lens assembly is HFOV, a focal length of the fifth lens is f5, a curvature radius of an image-side surface of the fifth lens is R10, and the following conditions are satisfied:

In this way, the optical lens assembly can still maintain better image quality under a large angle of view, and it is helpful to realize the effect of miniaturization.

A distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a distance from the image-side surface of the fifth lens to the image plane along the optical axis is BFL, a maximum image height of the optical lens assembly is IMH, a focal length of the optical lens assembly is f, and the following conditions are satisfied:

In this way, the spatial configuration of the optical lens assembly can be optimized, and the height of the lens module can be reduced.

A distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a distance from the stop to the image plane along the optical axis is SL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In this way, the spatial configuration of the optical lens assembly can be optimized, and the height of the lens module can be reduced.

A focal length of the second lens is f2, a focal length of the fifth lens is f5, a focal length of the optical lens assembly is f, a distance from the stop to the image plane along the optical axis is SL, and the following conditions are satisfied:

In this way, the appropriate distribution of the refractive power of the lenses is beneficial to correct the aberration of the optical lens assembly and improve the image quality of the optical lens assembly.

A focal length of the optical lens assembly is f, a maximum image height of the optical lens assembly is IMH, a curvature radius of the object-side surface of the first lens is R1, a curvature radius of an image-side surface of the fifth lens is R10, and the following conditions are satisfied:

In this way, the refractive power and the curvature of the lenses of the optical lens assembly reach an optimal ratio, which is beneficial to correct the aberration of the optical lens assembly and improve the image quality of the optical lens assembly.

An entrance pupil diameter of the optical lens assembly is EPD, a curvature radius of the object-side surface of the third lens is R5, a distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In this way, the proper configuration helps to obtain a proper balance of the active area of image plane while the optical lens assembly is miniaturized.

A central thickness of the second lens along the optical axis is CT2, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, a central thickness of the fifth lens along the optical axis is CT5, and the following condition is satisfied:

In this way, the performance of the optical lens assembly and the formability of the lenses can be taken into account to be easily manufactured by properly adjusting the thickness distribution of the lenses.

A central thickness of the first lens along the optical axis is CT1, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, a central thickness of the fifth lens along the optical axis is CT5, and the following condition is satisfied:

In this way, the performance of the optical lens assembly and the formability of the lenses can be taken into account to be easily manufactured by properly adjusting the thickness distribution of the lenses.

DETAILED DESCRIPTION

In order to enable a person of ordinary skill in the art to understand and realize the contents of the present disclosure, the following are illustrated by proper embodiments with accompanying drawings, and the equivalent substitutions and modifications based on the contents of the present disclosure are included in the scope of the present disclosure. It is also stated that the accompanying drawings of the present disclosure are not depictions of actual dimensions, and although the present disclosure provides embodiments of particular parameters, it is to be understood that the parameters need not be exactly equal to their corresponding values, and that, within an acceptable margin of error, are approximate to their corresponding parameters. The following embodiments will further detail the technical aspects of the present disclosure, but the disclosure is not intended to limit the scope of the present disclosure.

First Embodiment

Refer toFIG.1AandFIG.1B.FIG.1Ais a schematic view of an optical lens assembly according to a first embodiment of the present disclosure, andFIG.1Bshows a field curvature curve and a distortion curve of an optical lens assembly according to a first embodiment. As can be seen fromFIG.1A, the optical lens assembly includes, in order from an object side to an image side: a stop100, a first lens110, a second lens120, a third lens130, a fourth lens140, a fifth lens150, an IR bandpass filter160, and an image plane180. A total quantity of lenses with refractive power in the optical lens assembly is five, but not limited thereto.

The first lens110with negative refractive power is made of a plastic material and includes an object-side surface111and an image-side surface112, wherein the object-side surface111of the first lens110is concave near an optical axis190, and the image-side surface112of the first lens110is concave near the optical axis190. The object-side surface111and the image-side surface112are aspheric.

The second lens120with positive refractive power is made of a plastic material and includes an object-side surface121and an image-side surface122, wherein the object-side surface121of the second lens120is convex near the optical axis190, and the image-side surface122of the second lens120is convex near the optical axis190. The object-side surface121and the image-side surface122are aspheric.

The third lens130with negative refractive power is made of a plastic material and includes an object-side surface131and an image-side surface132, wherein the object-side surface131of the third lens130is convex near an optical axis190, and the image-side surface132of the third lens130is concave near the optical axis190. The object-side surface131and the image-side surface132are aspheric.

The fourth lens140with positive refractive power is made of a plastic material and includes an object-side surface141and an image-side surface142, wherein the object-side surface141of the fourth lens140is convex near an optical axis190, and the image-side surface142of the fourth lens140is convex near the optical axis190. The object-side surface141and the image-side surface142are aspheric.

The fifth lens150with positive refractive power is made of a plastic material and includes an object-side surface151and an image-side surface152, wherein the object-side surface151of the fifth lens150is convex near the optical axis190, and the image-side surface152of the fifth lens150is concave near the optical axis190. The object-side surface151and the image-side surface152are aspheric.

The IR bandpass filter160is made of glass, and is disposed between the fifth lens150and the image plane180without affecting a focal length of the optical lens assembly. It can be understood that, the IR bandpass filter160may also be formed on the surface of the above-mentioned lens. The IR bandpass filter160may also be made of other materials.

An aspheric curve equation of the above-mentioned lenses is expressed as follows:

wherein, z is a position value in the direction of the optical axis190and with a surface vertex as a reference at a position of a height h; c is a curvature of a lens surface near the optical axis190, and is a reciprocal of a curvature radius (R) (c=1/R), R is a curvature radius of a lens surface near the optical axis190, h is a vertical distance between the lens surface and the optical axis190, k is a conic constant, and Ai is an ithorder aspheric coefficient.

In the first embodiment, a focal length of the optical lens assembly is f, an f-number of the optical lens assembly is Fno, and a maximum field of view in the optical lens assembly is FOV, and values are as follows: f=1.22 (millimeters), Fno=1.32, and FOV=98.65 (degrees).

In the optical lens assembly of the first embodiment, a focal length of the fifth lens150is f5, a curvature radius of an image-side surface152of the fifth lens150is R10, a distance from the stop100to the image plane180along the optical axis190is SL, and the following conditions are satisfied: f5*R10/SL=1.66 (mm).

In the optical lens assembly of the first embodiment, a maximum image height of the optical lens assembly is IMH, an entrance pupil diameter of the optical lens assembly is EPD, and the following conditions are satisfied: IMH/EPD=1.51.

In the optical lens assembly of the first embodiment, a central thickness of the second lens120along the optical axis190is CT2, a central thickness of the third lens130along the optical axis190is CT3, a central thickness of the fourth lens140along the optical axis190is CT4, and the following condition is satisfied: (CT2+CT4)/CT3=3.95.

In the optical lens assembly of the first embodiment, a focal length of the fifth lens150is f5, a distance from the image-side surface of the second lens to the object-side surface of the third lens along the optical axis is T23, a distance from the image-side surface of the third lens to the object-side surface of the fourth lens along the optical axis is T34, a distance from the image-side surface of the fourth lens to the object-side surface of the fifth lens along the optical axis is T45, and the following condition is satisfied:

In the optical lens assembly of the first embodiment, a curvature radius of an object-side surface111of the first lens110is R1, a central thickness of the first lens110along the optical axis190is CT1, a distance from the image-side surface112of the first lens110to the object-side surface121of the second lens120along the optical axis190is T12, and the following condition is satisfied:

In the optical lens assembly of the first embodiment, a distance from the stop to the image plane along the optical axis is SL, a maximum image height of the optical lens assembly is IMH, and the following condition is satisfied: SL/IMH=2.50.

In the optical lens assembly of the first embodiment, a distance from the object-side surface111of the first lens110to an image plane180along the optical axis190is TL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied: TL/IMH=3.90.

In the optical lens assembly of the first embodiment, a distance from the stop100to the image plane180along the optical axis190is SL, a focal length of the optical lens assembly is f, and the following conditions are satisfied:

In the optical lens assembly of the first embodiment, a half of a maximum field of view of the optical lens assembly is HFOV, a focal length of the fifth lens150is f5, a curvature radius of an image-side surface of the fifth lens is R10, and the following conditions are satisfied:

In the optical lens assembly of the first embodiment, a distance from the object-side surface111of the first lens110to an image plane180along the optical axis190is TL, a distance from the image-side surface152of the fifth lens150to the image plane180along the optical axis190is BFL, a maximum image height of the optical lens assembly is IMH, a focal length of the optical lens assembly is f, and the following conditions are satisfied:

In the optical lens assembly of the first embodiment, a distance from the object-side surface111of the first lens110to an image plane180along the optical axis190is TL, a distance from the stop100to the image plane180along the optical axis190is SL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In the optical lens assembly of the first embodiment, a focal length of the second lens120is f2, a focal length of the fifth lens150is f5, a focal length of the optical lens assembly is f, a distance from the stop100to the image plane along the optical axis is SL, and the following conditions are satisfied:

In the optical lens assembly of the first embodiment, a focal length of the optical lens assembly is f, a maximum image height of the optical lens assembly is IMH, a curvature radius of the object-side surface of the first lens is R1, a curvature radius of an image-side surface of the fifth lens is R10, and the following conditions are satisfied:

In the optical lens assembly of the first embodiment, an entrance pupil diameter of the optical lens assembly is EPD, a curvature radius of the object-side surface of the third lens is R5, a distance from the object-side surface of the first lens to an image plane along the optical axis is TL, a maximum image height of the optical lens assembly is IMH, and the following conditions are satisfied:

In the optical lens assembly of the first embodiment, a central thickness of the second lens along the optical axis is CT2, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, a central thickness of the fifth lens along the optical axis is CT5, and the following condition is satisfied:

In the optical lens assembly of the first embodiment, a central thickness of the first lens along the optical axis is CT1, a central thickness of the third lens along the optical axis is CT3, a central thickness of the fourth lens along the optical axis is CT4, a central thickness of the fifth lens along the optical axis is CT5, and the following condition is satisfied:

Refer to Table 1 and Table 2 below.

Table 1 shows detailed configuration data of the first embodiment inFIG.1A. Units of the curvature radius, the central thickness, the gap, and the focal length is mm. Surfaces0to14sequentially represent surfaces from an object side to an image side. Surface0is a gap between an object and the first lens110along the optical axis190, and surface3is a gap between the stop100and the object-side surface111of the second lens120along the optical axis190. The object-side surface111of the second lens120is closer to the object side than the stop100, and therefore the stop100is represented by a negative value. Otherwise, if the stop100is closer to the object side than the object-side surface111of the second lens120, the stop100is represented by a positive value. Surfaces1,4,6,8,10and12are respectively central thicknesses of the first lens110, the second lens120, the third lens130, the fourth lens140, the fifth lens150and the IR bandpass filter160along the optical axis190. Surfaces2,5,7,9,11and13respectively are a gap between the first lens110and the stop100along the optical axis190, a gap between the second lens120and the third lens130along the optical axis190, a gap between the third lens130and the fourth lens140along the optical axis190, a gap between the fourth lens140and the fifth lens150along the optical axis190, a gap between the fifth lens150and the IR bandpass filter160along the optical axis190, and a gap between the IR bandpass filter160and the image plane190along the optical axis190.

Table 2 shows aspheric data in the first embodiment. k represents a conic constant in an aspheric curve equation, and A2, A4, A6, A8, A10, A12, A14, A16, A18 and A20 are high-order aspheric coefficients. In addition, the following tables of embodiments are schematic diagrams and aberration curves corresponding to the embodiments. The definitions of data in the tables of the embodiments are the same as the definitions in Table 1 and Table 2 of the first embodiment, and are not repeated herein.

Second Embodiment

Refer toFIG.2AandFIG.2B.FIG.2Ais a schematic view of an optical lens assembly according to a second embodiment of the present disclosure, andFIG.2Bshows a field curvature curve and a distortion curve of an optical lens assembly according to a second embodiment. As can be seen fromFIG.2A, the optical lens assembly includes, in order from an object side to an image side: a stop200, a first lens210, a second lens220, a third lens230, a fourth lens240, a fifth lens250, an IR bandpass filter260, and an image plane280. A total quantity of lenses with refractive power in the optical lens assembly is five, but not limited thereto.

The first lens210with negative refractive power is made of a plastic material and includes an object-side surface211and an image-side surface212, wherein the object-side surface211of the first lens210is concave near an optical axis290, and the image-side surface212of the first lens210is concave near the optical axis290. The object-side surface211and the image-side surface212are aspheric.

The second lens220with positive refractive power is made of a plastic material and includes an object-side surface221and an image-side surface222, wherein the object-side surface221of the second lens220is convex near the optical axis290, and the image-side surface222of the second lens220is convex near the optical axis290. The object-side surface221and the image-side surface222are aspheric.

The third lens230with negative refractive power is made of a plastic material and includes an object-side surface231and an image-side surface232, wherein the object-side surface231of the third lens230is convex near an optical axis290, and the image-side surface232of the third lens230is concave near the optical axis290. The object-side surface231and the image-side surface232are aspheric.

The fourth lens240with positive refractive power is made of a plastic material and includes an object-side surface241and an image-side surface242, wherein the object-side surface241of the fourth lens240is convex near an optical axis290, and the image-side surface242of the fourth lens240is convex near the optical axis290. The object-side surface241and the image-side surface242are aspheric.

The fifth lens250with positive refractive power is made of a plastic material and includes an object-side surface251and an image-side surface252, wherein the object-side surface251of the fifth lens250is convex near the optical axis290, and the image-side surface252of the fifth lens250is concave near the optical axis290. The object-side surface251and the image-side surface252are aspheric.

The IR bandpass filter260is made of glass, and is disposed between the fifth lens250and the image plane280without affecting a focal length of the optical lens assembly. It can be understood that, the IR bandpass filter260may also be formed on the surface of the above-mentioned lens. The IR bandpass filter260may also be made of other materials. Refer to Table 3 and Table 4 below.

In the second embodiment, an aspheric curve equation is expressed as that in the first embodiment. In addition, definitions of parameters in the following tables are the same as those in the first embodiment, and are not repeated herein.

Referring to Table 3 and Table 4, the following data may be calculated:

Third Embodiment

Refer toFIG.3AandFIG.3B.FIG.3Ais a schematic view of an optical lens assembly according to a third embodiment of the present disclosure, andFIG.3Bshows a field curvature curve and a distortion curve of an optical lens assembly according to a second embodiment. As can be seen fromFIG.3A, the optical lens assembly includes, in order from an object side to an image side: a stop300, a first lens310, a second lens320, a third lens330, a fourth lens340, a fifth lens350, an IR bandpass filter360, and an image plane380. A total quantity of lenses with refractive power in the optical lens assembly is five, but not limited thereto.

The first lens310with negative refractive power is made of a plastic material and includes an object-side surface311and an image-side surface312, wherein the object-side surface311of the first lens310is concave near an optical axis390, and the image-side surface312of the first lens310is concave near the optical axis390. The object-side surface311and the image-side surface312are aspheric.

The second lens320with positive refractive power is made of a plastic material and includes an object-side surface321and an image-side surface322, wherein the object-side surface321of the second lens320is convex near the optical axis390, and the image-side surface322of the second lens320is convex near the optical axis390. The object-side surface321and the image-side surface322are aspheric.

The third lens330with negative refractive power is made of a plastic material and includes an object-side surface331and an image-side surface332, wherein the object-side surface331of the third lens330is convex near an optical axis390, and the image-side surface332of the third lens330is concave near the optical axis390. The object-side surface331and the image-side surface332are aspheric.

The fourth lens340with positive refractive power is made of a plastic material and includes an object-side surface341and an image-side surface342, wherein the object-side surface341of the fourth lens340is convex near an optical axis390, and the image-side surface342of the fourth lens340is convex near the optical axis390. The object-side surface341and the image-side surface342are aspheric.

The fifth lens350with positive refractive power is made of a plastic material and includes an object-side surface351and an image-side surface352, wherein the object-side surface351of the fifth lens350is convex near the optical axis390, and the image-side surface352of the fifth lens350is concave near the optical axis390. The object-side surface351and the image-side surface352are aspheric.

5 The IR bandpass filter360is made of glass, and is disposed between the seventh lens370and the image plane380without affecting a focal length of the optical lens assembly. It can be understood that, the IR bandpass filter360may also be formed on the surface of the above-mentioned lens. The IR bandpass filter360may also be made of other materials.

Refer to Table 5 and Table 6 below.

In the third embodiment, an aspheric curve equation is expressed as that in the first embodiment. In addition, definitions of parameters in the following tables are the same as those in the first embodiment, and are not repeated herein.

Referring to Table 5 and Table 6, the following data may be calculated:

Fourth Embodiment

Refer toFIG.4AandFIG.4B.FIG.4Ais a schematic view of an optical lens assembly according to a fourth embodiment of the present disclosure, andFIG.4Bshows a field curvature curve and a distortion curve of an optical lens assembly according to a second embodiment. As can be seen fromFIG.4A, the optical lens assembly includes, in order from an object side to an image side: a stop400, a first lens410, a second lens420, a third lens430, a fourth lens440, a fifth lens450, an IR bandpass filter460, and an image plane480. A total quantity of lenses with refractive power in the optical lens assembly is five, but not limited thereto.

The first lens410with negative refractive power is made of a plastic material and includes an object-side surface411and an image-side surface412, wherein the object-side surface411of the first lens410is convex near an optical axis490, and the image-side surface412of the first lens410is concave near the optical axis490. The object-side surface411and the image-side surface412are aspheric.

The second lens420with positive refractive power is made of a plastic material and includes an object-side surface421and an image-side surface422, wherein the object-side surface421of the second lens420is convex near the optical axis490, and the image-side surface422of the second lens420is convex near the optical axis490. The object-side surface421and the image-side surface422are aspheric.

The third lens430with negative refractive power is made of a plastic material and includes an object-side surface431and an image-side surface432, wherein the object-side surface431of the third lens430is convex near an optical axis490, and the image-side surface432of the third lens430is concave near the optical axis490. The object-side surface431and the image-side surface432are aspheric.

The fourth lens440with negative refractive power is made of a plastic material and includes an object-side surface441and an image-side surface442, wherein the object-side surface441of the fourth lens440is convex near an optical axis490, and the image-side surface442of the fourth lens440is convex near the optical axis490. The object-side surface441and the image-side surface442are aspheric.

The fifth lens450with positive refractive power is made of a plastic material and includes an object-side surface451and an image-side surface452, wherein the object-side surface451of the fifth lens450is convex near the optical axis490, and the image-side surface452of the fifth lens450is concave near the optical axis490. The object-side surface451and the image-side surface452are aspheric.

The IR bandpass filter460is made of glass, and is disposed between the fifth lens450and the image plane480without affecting a focal length of the optical lens assembly. It can be understood that, the IR bandpass filter460may also be formed on the surface of the above-mentioned lens. The IR bandpass filter460may also be made of other materials.

Refer to Table 7 and Table 8 below.

In the Fourth embodiment, an aspheric curve equation is expressed as that in the first embodiment. In addition, definitions of parameters in the following tables are the same as those in the first embodiment, and are not repeated herein.

Referring to Table 7 and Table 8, the following data may be calculated:

Fifth Embodiment

Refer toFIG.5AandFIG.5B.FIG.5Ais a schematic view of an optical lens assembly according to a fifth embodiment of the present disclosure, andFIG.5Bshows a field curvature curve and a distortion curve of an optical lens assembly according to a second embodiment. As can be seen fromFIG.5A, the optical lens assembly includes, in order from an object side to an image side: a stop500, a first lens510, a second lens520, a third lens530, a fourth lens540, a fifth lens550, an IR bandpass filter560, and an image plane580. A total quantity of lenses with refractive power in the optical lens assembly is five, but not limited thereto.

The first lens510with negative refractive power is made of a plastic material and includes an object-side surface511and an image-side surface512, wherein the object-side surface511of the first lens510is concave near an optical axis590, and the image-side surface512of the first lens510is concave near the optical axis590. The object-side surface511and the image-side surface512are aspheric.

The second lens520with positive refractive power is made of a plastic material and includes an object-side surface521and an image-side surface522, wherein the object-side surface521of the second lens520is convex near the optical axis590, and the image-side surface522of the second lens520is convex near the optical axis590. The object-side surface521and the image-side surface522are aspheric.

The third lens530with negative refractive power is made of a plastic material and includes an object-side surface531and an image-side surface532, wherein the object-side surface531of the third lens530is convex near an optical axis590, and the image-side surface532of the third lens530is concave near the optical axis590. The object-side surface531and the image-side surface532are aspheric.

The fourth lens540with positive refractive power is made of a plastic material and includes an object-side surface541and an image-side surface542, wherein the object-side surface541of the fourth lens540is convex near an optical axis590, and the image-side surface542of the fourth lens540is convex near the optical axis590. The object-side surface541and the image-side surface542are aspheric.

The fifth lens550with positive refractive power is made of a plastic material and includes an object-side surface551and an image-side surface552, wherein the object-side surface551of the fifth lens550is convex near the optical axis590, and the image-side surface552of the fifth lens550is concave near the optical axis590. The object-side surface551and the image-side surface552are aspheric.

The IR bandpass filter560is made of glass, and is disposed between the fifth lens550and the image plane580without affecting a focal length of the optical lens assembly. It can be understood that, the IR bandpass filter560may also be formed on the surface of the above-mentioned lens. The IR bandpass filter560may also be made of other materials.

Refer to Table 9 and Table 10 below.

In the Fifth embodiment, an aspheric curve equation is expressed as that in the first embodiment. In addition, definitions of parameters in the following tables are the same as those in the first embodiment, and are not repeated herein.

5 Referring to Table 9 and Table 10, the following data may be calculated:

Sixth Embodiment

Refer toFIG.6AandFIG.6B.FIG.6Ais a schematic view of an optical lens assembly according to a sixth embodiment of the present disclosure, andFIG.6Bshows a field curvature curve and a distortion curve of an optical lens assembly according to a second embodiment. As can be seen fromFIG.6A, the optical lens assembly includes, in order from an object side to an image side: a stop600, a first lens610, a second lens620, a third lens630, a fourth lens640, a fifth lens650, an IR bandpass filter660, and an image plane680. A total quantity of lenses with refractive power in the optical lens assembly is five, but not limited thereto.

The first lens610with negative refractive power is made of a plastic material and includes an object-side surface611and an image-side surface612, wherein the object-side surface611of the first lens610is convex near an optical axis690, and the image-side surface612of the first lens610is concave near the optical axis690. The object-side surface611and the image-side surface612are aspheric.

The second lens620with positive refractive power is made of a plastic material and includes an object-side surface621and an image-side surface622, wherein the object-side surface621of the second lens620is convex near the optical axis690, and the image-side surface622of the second lens620is convex near the optical axis690. The object-side surface621and the image-side surface622are aspheric.

The third lens630with negative refractive power is made of a plastic material and includes an object-side surface631and an image-side surface632, wherein the object-side surface631of the third lens630is concave near an optical axis690, and the image-side surface632of the third lens630is concave near the optical axis690. The object-side surface631and the image-side surface632are aspheric.

The fourth lens640with positive refractive power is made of a plastic material and includes an object-side surface641and an image-side surface642, wherein the object-side surface641of the fourth lens640is convex near an optical axis690, and the image-side surface642of the fourth lens640is convex near the optical axis690. The object-side surface641and the image-side surface642are aspheric.

The fifth lens650with positive refractive power is made of a plastic material and includes an object-side surface651and an image-side surface652, wherein the object-side surface651of the fifth lens650is convex near the optical axis690, and the image-side surface652of the fifth lens650is concave near the optical axis690. The object-side surface651and the image-side surface652are aspheric.

The IR bandpass filter660is made of glass, and is disposed between the fifth lens650and the image plane680without affecting a focal length of the optical lens assembly. It can be understood that, the IR bandpass filter660may also be formed on the surface of the above-mentioned lens. The IR bandpass filter660may also be made of other materials.

Refer to Table 11 and Table 12 below.

In the sixth embodiment, an aspheric curve equation is expressed as that in the first embodiment. In addition, definitions of parameters in the following tables are the same as those in the first embodiment, and are not repeated herein.

Referring to Table 11 and Table 12, the following data may be calculated:

Seventh Embodiment

Refer toFIG.7AandFIG.7B.FIG.7Ais a schematic view of an optical lens assembly according to a seventh embodiment of the present disclosure, andFIG.7Bshows a field curvature curve and a distortion curve of an optical lens assembly according to a second embodiment. As can be seen fromFIG.7A, the optical lens assembly includes, in order from an object side to an image side: a stop700, a first lens710, a second lens720, a third lens730, a fourth lens740, a fifth lens750, an IR bandpass filter760, and an image plane780. A total quantity of lenses with refractive power in the optical lens assembly is five, but not limited thereto.

The first lens710with negative refractive power is made of a plastic material and includes an object-side surface711and an image-side surface712, wherein the object-side surface711of the first lens710is concave near an optical axis790, and the image-side surface712of the first lens710is concave near the optical axis790. The object-side surface711and the image-side surface712are aspheric.

The second lens720with positive refractive power is made of a plastic material and includes an object-side surface721and an image-side surface722, wherein the object-side surface721of the second lens720is convex near the optical axis790, and the image-side surface722of the second lens720is convex near the optical axis790. The object-side surface721and the image-side surface722are aspheric.

The third lens730with negative refractive power is made of a plastic material and includes an object-side surface731and an image-side surface732, wherein the object-side surface731of the third lens730is convex near an optical axis790, and the image-side surface732of the third lens730is concave near the optical axis790. The object-side surface731and the image-side surface732are aspheric.

The fourth lens740with positive refractive power is made of a plastic material and includes an object-side surface741and an image-side surface742, wherein the object-side surface741of the fourth lens740is convex near an optical axis790, and the image-side surface742of the fourth lens740is concave near the optical axis790. The object-side surface741and the image-side surface742are aspheric.

The fifth lens750with positive refractive power is made of a plastic material and includes an object-side surface751and an image-side surface752, wherein the object-side surface751of the fifth lens750is convex near the optical axis790, and the image-side surface752of the fifth lens750is concave near the optical axis790. The object-side surface751and the image-side surface752are aspheric.

The IR bandpass filter760is made of glass, and is disposed between the fifth lens750and the image plane780without affecting a focal length of the optical lens assembly. It can be understood that, the IR bandpass filter760may also be formed on the surface of the above-mentioned lens. The IR bandpass filter760may also be made of other materials.

Refer to Table 13 and Table 14 below.

In the Seventh embodiment, an aspheric curve equation is expressed as that in the first embodiment. In addition, definitions of parameters in the following tables are the same as those in the first embodiment, and are not repeated herein.

Referring to Table 13 and Table 14, the following data may be calculated:

Eighth Embodiment

Refer toFIG.8.FIG.8is a schematic view of a photographing module4000according to an eighth embodiment of the present disclosure. The photographing module includes a lens barrel1000, an optical lens assembly3000, and an image sensor2000. The optical lens assembly3000can be the optical lens assemblies according to the above-mentioned embodiments, and the optical lens assembly3000is disposed in the lens barrel1000. The image sensor2000is disposed on an image plane of the optical lens assembly3000, and is an electronic photosensitive element (e.g., CMOS, CCD) with good sensitivity and low noise, so as to truly present the image quality of the optical lens assembly.

In the foregoing embodiments, those with ordinary knowledge in the art should understand that, in the optical lens assembly and the photographing module provided in the present disclosure, the lens may be made of glass or plastic. The lens made of glass can increase the degree of freedom of the configuration of the refractive power of the optical lens assembly. The lens made of glass may be made by using related technologies such as grinding, molding, or the like. The lens made of plastic can reduce the production costs.

In the optical lens assembly provided in the present disclosure, for the lens with refractive power, if the surface of the lens is convex and a position of the convex surface is not defined, it indicates that the surface of the lens is convex near the optical axis. If the surface of the lens is concave and a position of the concave surface is not defined, it indicates that the surface of the lens is concave near the optical axis.

The optical lens assembly provided in the present disclosure is applicable to an optical system that requires a large aperture and a larger field of view according to requirements, and has the characteristics of the large field of view and desirable image quality. The optical lens assembly is applicable to electronic imaging systems such as a mobile phone, a notebook computer, a digital drawing board, a mobile device, a digital camera, or vehicle photography in many aspects.