Imaging optical lens assembly, image capturing device and electronic device

Abstract

The invention discloses a camera shooting optical lens group which comprises six lenses. The six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side along an optical path. Each of the six lenses has an object-side surface facing the object-side direction and an image-side surface facing the image-side direction. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an image-side surface being concave in a paraxial region thereof. When specific conditions are met, the shooting optical lens group can meet the requirements of wide viewing angle and high imaging quality at the same time. The invention further discloses an image capturing device with the shooting optical lens group and an electronic device with the image capturing device.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an imaging optical lens assembly, an image capturing device and an electronic device, in particular to an imaging optical lens assembly and an image capturing device suitable for an electronic device. BACKGROUND

[0002] With the advancement of semiconductor process technology, the performance of electronic photosensitive elements is improved, and the pixel size can be smaller. Therefore, optical lenses with high imaging quality are indispensable.

[0003] With the rapid development of technology, electronic devices equipped with optical lenses are more widely used, and the requirements for optical lenses are more diverse. Since the existing optical lenses are not easy to balance the demands of imaging quality, sensitivity, aperture size, volume or viewing angle, the present disclosure provides an optical lens to meet the needs. SUMMARY

[0004] The present disclosure provides an imaging optical lens assembly, an image capturing device and an electronic device. The imaging optical lens assembly includes six lenses arranged in order from the object side to the image side along the optical path. When certain conditions are met, the imaging optical lens assembly provided by the present disclosure can meet the requirements of wide viewing angle and high imaging quality at the same time.

[0005] The present disclosure provides an imaging optical lens assembly, which includes six lenses. The six lenses are arranged in order from the object side to the image side along the optical path as a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The six lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction. Preferably, the first lens has a negative refractive power. Preferably, the object side surface of the second lens is concave at the vicinity of the optical axis. Preferably, the image side surface of the third lens is concave at the vicinity of the optical axis. Wherein, the distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, the focal length of the imaging optical lens assembly is f, the focal length of the fifth lens is f5, the interval distance on the optical axis between the fifth lens and the sixth lens is T56, the distance on the optical axis from the object side surface of the first lens to the imaging surface is TL, the maximum imaging height of the imaging optical lens assembly is ImgH, which preferably satisfies the following conditions:

[0006] 2.20 < TD / f < 4.50;

[0007] -0.80 < f / f5 < 0.20;

[0008] 1.00 < TD / T56 < 35.00; and

[0009] 0.50 < TL / ImgH < 4.00.

[0010] The present disclosure further provides a camera optical lens assembly comprising six lenses. The six lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The six lenses respectively have an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the first lens has negative refractive power. Preferably, the object-side surface of the second lens is concave near the optical axis. Preferably, the image-side surface of the third lens is concave near the optical axis. Preferably, the fifth lens has negative refractive power. Preferably, the image-side surface of the sixth lens is concave near the optical axis. Preferably, the image-side surface of the sixth lens has at least one inflection point. The camera optical lens assembly has a focal length of f, a focal length of the first lens element of f1, a focal length of the second lens element of f2, a focal length of the third lens element of f3, a focal length of the fourth lens element of f4, a focal length of the fifth lens element of f5, a focal length of the sixth lens element of f6, a combined focal length of the fourth lens element and the fifth lens element of f45, a focal length of the j-th lens element of fj, a maximum absolute value of f / fj of |f / fj|max, a distance between the first lens element and the second lens element on the optical axis of T12, a distance between the second lens element and the third lens element on the optical axis of T23, a distance between the third lens element and the fourth lens element on the optical axis of T34, a distance between the fifth lens element and the sixth lens element on the optical axis of T56, a radius of curvature of the object-side surface of the second lens element of R3, and a radius of curvature of the image-side surface of the second lens element of R4. Preferably, the camera optical lens assembly satisfies the following conditions:

[0011] 0.45 <f / f45<1.00;

[0012] 0.70 <T56 / T34<20.00;

[0013] T23 <T12;

[0014] -5.00 < (R3 + R4) / (R3 - R4); and

[0015] |f / fj|max<1.50, where j=1, 2, 3, 4, 5 or 6.

[0016] The present disclosure further provides a camera optical lens set comprising six lenses. The six lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The six lenses respectively have an object side surface facing the object side and an image side surface facing the image side. Preferably, the first lens has negative refractive power. Preferably, the object side surface of the second lens is concave near the optical axis. Preferably, the image side surface of the third lens is concave near the optical axis. Preferably, the fifth lens has negative refractive power. The distance from the object side surface of the first lens to the image side surface of the sixth lens on the optical axis is TD, the focal length of the camera optical lens set is f, the focal length of the third lens is f3, the spacing between the fifth lens and the sixth lens on the optical axis is T56, the distance from the object side surface of the first lens to the imaging plane on the optical axis is TL, and the maximum imaging height of the camera optical lens set is ImgH, which preferably satisfies the following conditions:

[0017] 2.20 <TD / f<4.50;

[0018] -1.50 <f / f3<0.30;

[0019] 1.00 <TD / T56<19.00;以及

[0020] 0.50 <TL / ImgH<4.00。

[0021] The present disclosure provides an imaging device, which includes the aforementioned camera optical lens assembly and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the camera optical lens assembly.

[0022] The present disclosure provides an electronic device including the aforementioned imaging device.

[0023] When TD / f meets the above conditions, it helps to balance the total length of the camera optical lens assembly and control the field of view to meet product application requirements.

[0024] When f / f5 meets the above conditions, it helps to balance the refractive power configuration of the camera optical lens assembly to achieve optimal image quality.

[0025] When TD / T56 meets the above conditions, the spatial configuration of the camera optical lens assembly can be adjusted, which helps to balance the volume distribution of the camera optical lens assembly.

[0026] When TL / ImgH meets the above conditions, it helps to strike a balance between compressing the total length and increasing the imaging surface, thereby meeting a wider range of applications.

[0027] When f / f45 meets the above conditions, the overall refractive power of the fourth and fifth lenses can be adjusted, which helps to reduce the back focal length.

[0028] When T56 / T34 meets the above conditions, the spatial configuration of the camera optical lens assembly can be effectively controlled to shorten the total length of the camera optical lens assembly.

[0029] When T23 is met <T12时,可调整第一透镜与第二透镜的镜间距与第二透镜与第三透镜的镜间距的比例,有助于增加视角大小。

[0030] When (R3+R4) / (R3-R4) satisfies the above condition, it helps to control the lens shape of the second lens element, thereby correcting the aberration of the camera optical lens assembly and maintaining good imaging quality.

[0031] When |f / fj|max satisfies the above conditions, the refractive power distribution of the camera optical lens assembly can be balanced, effectively slowing down the refractive change of the incident light, and reducing the generation of aberrations such as spherical aberration to improve imaging quality.

[0032] When f / f3 meets the above conditions, the optical path control capability of the third lens can be adjusted to balance the refractive power configuration of the camera optical lens assembly and correct aberrations such as spherical aberration.

[0033] The above description of the contents of the present disclosure and the following description of the embodiments are intended to demonstrate and explain the spirit and principles of the present disclosure, and to provide further explanation of the claims of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of an imaging device according to a first embodiment of the present disclosure is shown.

[0035] Figure 2 From left to right are the spherical aberration, astigmatism, and distortion curves of the first embodiment.

[0036] Figure 3 A schematic diagram of an imaging device according to a second embodiment of the present disclosure is shown.

[0037] Figure 4 From left to right are the spherical aberration, astigmatism, and distortion curves of the second embodiment.

[0038] Figure 5 FIG. 1 is a schematic diagram illustrating an imaging device according to a third embodiment of the present disclosure.

[0039] Figure 6 From left to right are the spherical aberration, astigmatism, and distortion curves of the third embodiment.

[0040] Figure 7 A schematic diagram of an imaging device according to a fourth embodiment of the present disclosure is shown.

[0041] Figure 8 From left to right are the spherical aberration, astigmatism, and distortion curves of the fourth embodiment.

[0042] Figure 9 A schematic diagram of an imaging device according to a fifth embodiment of the present disclosure is shown.

[0043] Figure 10 From left to right are the spherical aberration, astigmatism, and distortion curves of the fifth embodiment.

[0044] Figure 11 A schematic diagram of an imaging device according to a sixth embodiment of the present disclosure is shown.

[0045] Figure 12 From left to right are the spherical aberration, astigmatism, and distortion curves of the sixth embodiment.

[0046] Figure 13 A schematic diagram of an imaging device according to a seventh embodiment of the present disclosure is shown.

[0047] Figure 14 From left to right are the spherical aberration, astigmatism, and distortion curves of the seventh embodiment.

[0048] Figure 15 A schematic diagram of an imaging device according to an eighth embodiment of the present disclosure is shown.

[0049] Figure 16 From left to right are the spherical aberration, astigmatism, and distortion curves of the eighth embodiment.

[0050] Figure 17 FIG. 1 is a schematic diagram illustrating an imaging device according to a ninth embodiment of the present disclosure.

[0051] Figure 18 From left to right are the spherical aberration, astigmatism, and distortion curves of the ninth embodiment.

[0052] Figure 19 A schematic diagram of an imaging device according to a tenth embodiment of the present disclosure is shown.

[0053] Figure 20 From left to right are the spherical aberration, astigmatism, and distortion curves of the tenth embodiment.

[0054] Figure 21 A schematic diagram of an imaging device according to an eleventh embodiment of the present disclosure is shown.

[0055] Figure 22 From left to right are the spherical aberration, astigmatism, and distortion curves of the eleventh embodiment.

[0056] Figure 23 FIG. 1 is a schematic diagram illustrating an imaging device according to a twelfth embodiment of the present disclosure.

[0057] Figure 24 From left to right are the spherical aberration, astigmatism, and distortion curves of the twelfth embodiment.

[0058] Figure 25 A schematic three-dimensional diagram of an imaging device according to a thirteenth embodiment of the present disclosure is shown.

[0059] Figure 26 A schematic three-dimensional diagram of one side of an electronic device according to a fourteenth embodiment of the present disclosure is shown.

[0060] Figure 27 Draw Figure 26 A three-dimensional schematic diagram of the other side of the electronic device.

[0061] Figure 28 Draw Figure 26 A system block diagram of an electronic device.

[0062] Figure 29 A schematic diagram illustrating one side of an electronic device according to a fifteenth embodiment of the present disclosure is shown.

[0063] Figure 30 Draw Figure 29 Schematic diagram of the other side of the electronic device.

[0064] Figure 31 A schematic three-dimensional diagram of one side of an electronic device according to a sixteenth embodiment of the present disclosure is shown.

[0065] Figure 32 FIG. 4 is a schematic diagram illustrating parameters Y1R1 , Y2R1 , Y5R2 and Y6R2 according to the first embodiment of the present disclosure.

[0066] Figure 33 Schematic diagram illustrating inflection points and critical points on a lens surface according to a first embodiment of the present disclosure.

[0067] Figure 34 A schematic diagram illustrating a configuration relationship of an optical path deflection element in a camera optical lens assembly according to the present disclosure is shown.

[0068] Figure 35 FIG2 is a schematic diagram illustrating another configuration relationship of an optical path deflection element in a camera optical lens assembly according to the present disclosure.

[0069] Figure 36 A schematic diagram illustrating a configuration relationship of two optical path deflection elements in a camera optical lens assembly according to the present disclosure is shown.

[0070]

Explanation of symbols

[0071] 1,2,3,4,5,6,7,8,9,10,11,12,100,100a,100b,100c,100d,100e,100f,100g,100h,100i,1

[0072] 00j,100k,100m,100n,100p,100q,100r: Imaging device

[0073] 101: Imaging Lens

[0074] 102: Drive device

[0075] 103: Electronic photosensitive element

[0076] 104: Image stabilization module

[0077] 200, 300, 400: Electronic devices

[0078] 201,401: Flash module

[0079] 202: Focus assist module

[0080] 203: Image Signal Processor

[0081] 204,301: Display module

[0082] 205: Image Software Processor

[0083] 206: Subject

[0084] OA1: first optical axis

[0085] OA2: Second optical axis

[0086] OA3: Third optical axis

[0087] LF, LF1, LF2: reflective elements

[0088] LG: Lens group

[0089] ST: aperture

[0090] S1, S2: aperture

[0091] E1: First lens

[0092] E2: Second lens

[0093] E3: The third lens

[0094] E4: The fourth lens

[0095] E5: Fifth lens

[0096] E6: Sixth lens

[0097] E7: Filter element

[0098] IMG: Imaging surface

[0099] IS: Electronic photosensitive element

[0100] P: Inflection point

[0101] C: critical point

[0102] Y1R1: Maximum effective radius of the object side surface of the first lens

[0103] Y2R1: Maximum effective radius of the object side surface of the second lens

[0104] Y5R2: Maximum effective radius of the image-side surface of the fifth lens

[0105] Y6R2: Maximum effective radius of the image-side surface of the sixth lens DETAILED DESCRIPTION

[0106] The camera optical lens assembly includes six lenses, and the six lenses are sequentially arranged along the optical path from the object side to the image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. Each of the six lenses has an object-side surface facing the object side and an image-side surface facing the image side.

[0107] The first lens element has negative refractive power, which helps converge light and increase the viewing angle of the camera optical system. The image-side surface of the first lens element can be concave near the optical axis to adjust the direction of light propagation and help converge the light path from a wider viewing angle.

[0108] The second lens element can have positive refractive power, thereby helping to balance the refractive power distribution of the camera optics. The object-side surface of the second lens element can be concave near the optical axis, and the image-side surface of the second lens element can be convex near the optical axis. This allows the second lens element's surface shape and refractive power to be adjusted to correct aberrations.

[0109] The third lens element can have negative refractive power, which helps correct aberrations such as spherical aberration. The image-side surface of the third lens element is concave near the optical axis, which allows the surface shape and refractive power of the third lens element to be adjusted to correct aberrations.

[0110] The fourth lens element may have positive refractive power, thereby helping to compress the image-side volume of the camera optical lens assembly. The image-side surface of the fourth lens element may be convex near the optical axis, thereby adjusting the direction of light travel and helping to adjust the volume distribution of the image-side volume of the camera optical lens assembly.

[0111] The fifth lens element can have negative refractive power, which helps correct aberrations such as chromatic aberration. The image-side surface of the fifth lens element can be concave near the optical axis, which can adjust the direction of light and help increase the imaging surface.

[0112] The image-side surface of the sixth lens element may be concave near the optical axis, thereby adjusting the back focus length to reduce the length of the entire camera optical lens assembly.

[0113] The object-side surface and the image-side surface of the sixth lens can both be aspherical surfaces. Utilizing the characteristics of aspherical lens surfaces, off-axis aberrations such as distortion in the camera optical lens assembly can be effectively corrected, and the overall length of the camera optical lens assembly can be shortened.

[0114] At least one of the object-side surface of the sixth lens and the image-side surface of the sixth lens may have at least one inflection point. This helps correct off-axis aberrations such as field curvature in the camera optical lens assembly while shortening the overall length of the camera optical lens assembly. The image-side surface of the sixth lens may have at least one inflection point. Figure 33 , is a schematic diagram illustrating an inflection point P on the lens surface according to the first embodiment of the present disclosure. Figure 33 , the object-side surface of the first lens E1, the object-side surface of the third lens E3, and the image-side surface of the sixth lens E6 each have one inflection point P, and the image-side surface of the fifth lens E5 and the object-side surface of the sixth lens E6 each have two inflection points P. Figure 33 The first embodiment of the present disclosure is shown as an exemplary illustration. However, in other embodiments of the present disclosure, each lens may have one or more inflection points.

[0115] The image side surface of the sixth lens may have at least one critical point at an off-axis position. This helps correct off-axis aberrations such as field curvature in the camera optical lens assembly while shortening the overall length of the camera optical lens assembly. Figure 33 , is a schematic diagram illustrating a critical point C on the lens surface according to the first embodiment of the present disclosure. Figure 33 , the object-side surface of the first lens E1, the object-side surface of the sixth lens E6, and the image-side surface of the sixth lens E6 each have a critical point C at an off-axis position. Figure 33 The first embodiment of the present disclosure is shown as an exemplary illustration. However, in other embodiments of the present disclosure, each lens may have one or more critical points at an off-axis position.

[0116] The distance on the optical axis from the object-side surface of the first lens to the image-side surface of the sixth lens is TD, and the focal length of the camera optical lens assembly is f, which can meet the following conditions: 1.40 <TD / f<6.00。借此,有助于平衡摄像光学镜组的总长并控制视场大小,以满足产品应用需求。其中,也可满足下列条件:2.20<TD / f<4.50。其中,也可满足下列条件:2.50<TD / f<3.90。其中,也可满足下列条件:2.50<TD / f<3.50。其中,也可满足下列条件:2.51≤TD / f≤3.47。

[0117] The focal length of the camera optical lens group is f, and the focal length of the fifth lens is f5, which can meet the following conditions: -0.80 <f / f5<0.20。借此,有助于平衡摄像光学镜组的屈折力配置,以达到较佳影像品质。其中,也可满足下列条件:-0.65≤f / f5≤-0.16。

[0118] The distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, and the distance between the fifth lens and the sixth lens on the optical axis is T56, which can meet the following conditions: 1.00 <TD / T56<35.00。借此,可调整摄像光学镜组的空间配置,有助于平衡摄像光学镜组的体积分布。其中,也可满足下列条件:1.00<TD / T56<19.00。其中,也可满足下列条件:4.0<TD / T56<13.0。其中,也可满足下列条件:6.48≤TD / T56≤10.05。

[0119] The distance between the object side surface of the first lens and the imaging plane on the optical axis is TL, and the maximum imaging height of the camera optical lens assembly is ImgH (which can be half of the total diagonal length of the effective sensing area of ​​the electronic photosensitive element), which can meet the following conditions: 0.50 <TL / ImgH<4.00。借此,有助于在压缩总长与增大成像面间取得平衡,进而满足更多样的应用。其中,也可满足下列条件:0.90<TL / ImgH<3.50。其中,也可满足下列条件:1.5<TL / ImgH<3.50。其中,也可满足下列条件:2.0<TL / ImgH<3.00。其中,也可满足下列条件:2.33≤TL / ImgH≤3.20。

[0120] The focal length of the camera optical lens group is f, and the combined focal length of the fourth lens and the fifth lens is f45, which can meet the following conditions: 0.45 <f / f45<1.20。借此,可调整第四透镜与第五透镜的整体屈折力,有助于减少后焦长度。其中,也可满足下列条件:0.45<f / f45<1.00。其中,也可满足下列条件:0.71≤f / f45≤0.92。

[0121] The distance between the third lens and the fourth lens on the optical axis is T34, and the distance between the fifth lens and the sixth lens on the optical axis is T56, which can meet the following conditions: 0.70 <T56 / T34<20.00。借此,可有效控制摄像光学镜组的空间配置,以压缩摄像光学镜组的总长。其中,也可满足下列条件:1.00<T56 / T34<10.00。其中,也可满足下列条件:3.21≤T56 / T34≤7.08。

[0122] The distance between the first lens and the second lens on the optical axis is T12, and the distance between the second lens and the third lens on the optical axis is T23, which can meet the following conditions: T23 <T12。借此,可调整第一透镜与第二透镜的镜间距与第二透镜与第三透镜的镜间距的比例,有助于增加视角大小。

[0123] The radius of curvature of the object-side surface of the second lens is R3, and the radius of curvature of the image-side surface of the second lens is R4, which can satisfy the following condition: -5.00 < (R3 + R4) / (R3 - R4). This helps control the lens shape of the second lens to correct aberrations of the camera optical lens system and maintain good imaging quality. The following conditions can also be satisfied: 1.00 < (R3 + R4) / (R3 - R4) < 80.00. The following conditions can also be satisfied: 1.00 < (R3 + R4) / (R3 - R4) < 40.00. The following conditions can also be satisfied: 2.58 ≤ (R3 + R4) / (R3 - R4) ≤ 15.98.

[0124] The focal length of the camera optical lens assembly is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, and the focal length of the j-th lens is fj. The maximum absolute value of f / fj is |f / fj|max, which can satisfy the following condition: |f / fj|max<1.50, where j=1, 2, 3, 4, 5, or 6. This balances the refractive power distribution of the camera optical lens assembly, effectively mitigating the refraction variation of incident light and reducing the generation of aberrations such as spherical aberration, thereby improving image quality. The following condition can also be satisfied: 0.70<|f / fj|max<1.30, where j=1, 2, 3, 4, 5, or 6.

[0125] The focal length of the camera optical lens group is f, and the focal length of the third lens is f3, which can meet the following conditions: -1.50 <f / f3<0.30。借此,可调整第三透镜的光路控制能力,以平衡摄像光学镜组的屈折力配置,并修正球差等像差。其中,也可满足下列条件:-1.00<f / f3<0.20。其中,也可满足下列条件:-0.50<f / f3<0.10。其中,也可满足下列条件:-0.36≤f / f3≤0.04。

[0126] The maximum viewing angle in the camera optical lens assembly is FOV, which can meet the following conditions: 110.0 degrees <FOV。借此,可调整视角大小,有助于获得更广的取像角度。其中,也可满足下列条件:125.0度<FOV。

[0127] The aperture value (F-number) of the camera optical lens set is Fno, which can meet the following conditions: 1.50 <Fno<4.00。借此,可控制光圈大小,以符合应用装置的通光孔径需求,并确保摄像光学镜组的入光量,以提升影像亮度。其中,也可满足下列条件:1.80<Fno<2.80。

[0128] The minimum Abbe number of all lenses in the camera optical lens set is Vmin, which can meet the following conditions: 5.0 <Vmin<21.0。借此,可调整透镜材质分布并修正摄像光学镜组所产生的色差,有助于提升成像品质。其中,也可满足下列条件:14.0<Vmin<20.0。

[0129] The focal length of the camera optical lens assembly is f, the radius of curvature of the object-side surface of the sixth lens element is R11, and the radius of curvature of the image-side surface of the sixth lens element is R12. These can satisfy the following condition: f / |R11|+f / |R12|<4.00. This helps control the surface curvature of the sixth lens element, reducing manufacturing complexity and suppressing ghosting. Furthermore, the following condition can also be satisfied: f / |R11|+f / |R12|<2.0.

[0130] The maximum effective radius of the object side surface of the first lens is Y1R1, and the maximum effective radius of the image side surface of the sixth lens is Y6R2, which can meet the following conditions: 0.60 <Y1R1 / Y6R2<8.00。借此,可有效控制透镜的有效径比例关系,以利于增加视场角度。其中,也可满足下列条件:0.8<Y1R1 / Y6R2<2.5。请参照 Figure 32 , is a schematic diagram illustrating parameters Y1R1 and Y6R2 according to the first embodiment of the present disclosure.

[0131] The distance on the optical axis from the image-side surface of the sixth lens element to the imaging plane is BL, and the distance on the optical axis from the object-side surface of the first lens element to the imaging plane is TL. These conditions can be met: BL / TL<0.22. This helps shorten the back focus of the camera optical lens assembly, thereby controlling the overall length of the camera optical lens assembly.

[0132] The camera optical lens assembly disclosed in the present disclosure may further include an aperture, the distance from the aperture to the imaging plane on the optical axis is SL, and the distance from the object side surface of the first lens to the imaging plane on the optical axis is TL, which can meet the following conditions: 0.30 <SL / TL<0.80。借此,有助于平衡光圈位置,以利于控制摄像光学镜组的体积及视角。其中,也可满足下列条件:0.40<SL / TL<0.60。

[0133] The focal length of the camera optical lens assembly is f, and the combined focal length of the first and second lenses is f12, which can meet the following condition: f / f12 < 0.75. This can adjust the overall refractive power of the first and second lenses, helping to balance the refractive power configuration of the camera optical lens assembly. The following condition can also be met: -0.40 <f / f12<0.50。

[0134] The distance between the first and second lenses on the optical axis is T12, and the distance between the second and third lenses on the optical axis is T23, which can satisfy the following condition: T23 / T12 < 0.80. This allows the ratio of the distance between the first and second lenses to the distance between the second and third lenses to be adjusted, helping to increase the viewing angle. Furthermore, the following condition can also be satisfied: T23 / T12 < 0.20.

[0135] The Abbe number of the third lens is V3, and the Abbe number of the fifth lens is V5, which can meet the following conditions: 10.0 <V3+V5<80.0。借此,有助于平衡摄像光学镜组在不同波段光线间的偏折能力,以修正色差,同时强化第三、第五透镜材质与空气间的密度差异,使摄像光学镜组在有限空间内达成较强的光路控制能力。其中,也可满足下列条件:20.0<V3+V5<55.0。

[0136] The maximum refractive index of all lenses in the camera optical lens set is Nmax, which meets the following conditions: 1.660 <Nmax。借此,可控制透镜材料,以降低制造难度,进而提升摄像光学镜组商品化的可能性。其中,也可满足下列条件:1.660<Nmax<1.800。

[0137] The minimum value of the maximum effective radius of all lens surfaces in the camera optical lens assembly is Ymin, and the maximum effective radius of any one of the third lens object-side surface, the third lens image-side surface, the fourth lens object-side surface, and the fourth lens image-side surface can be equal to Ymin. This effectively controls the aperture position while balancing the amount of light entering and the volume of the camera optical lens assembly.

[0138] The distance between the third lens and the fourth lens on the optical axis is T34, and the thickness of the second lens on the optical axis is CT2, which can meet the following conditions: T34 <CT2。借此,可有效控制摄像光学镜组的空间分布,以降低敏感度,进而提升摄像光学镜组的效能。

[0139] The distance between the second lens and the third lens on the optical axis is T23, and the distance between the fifth lens and the sixth lens on the optical axis is T56, which can meet the following conditions: T23 <T56。借此,可调整第二透镜与第三透镜的镜间距与第五透镜与第六透镜的镜间距的比例,有助于调整摄像光学镜组的体积分布。

[0140] The maximum viewing angle in the camera optical lens group is FOV, which can meet the following conditions: -1.80 <tan(FOV)<0。借此,有助于增加视场角度,以扩大产品应用范围。

[0141] The distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, and the entrance pupil diameter of the camera optical lens assembly is EPD, which can meet the following conditions: 5.00 <TD / EPD<8.50。借此,有助于压缩总长,并同时拥有大光圈的特性,以平衡摄像光学镜组的尺寸与成像照度。其中,也可满足下列条件:6.00<TD / EPD<8.00。

[0142] The maximum distance between all adjacent lenses in the camera optical lens assembly on the optical axis is ATmax, and the focal length of the camera optical lens assembly is f, which can meet the following conditions: <ATmax / f<2.50。借此,可调整摄像光学镜组中透镜的分布,以增加合格率及减少组装所产生的误差。其中,也可满足下列条件:0.40<ATmax / f<1.30。

[0143] The maximum effective radius of the object side surface of the second lens is Y2R1, and the maximum effective radius of the image side surface of the fifth lens is Y5R2, which can meet the following conditions: 0.70 <Y2R1 / Y5R2<8.00。借此,可有效控制透镜的有效径比例关系,以利于增加视场角度。其中,也可满足下列条件:1.10<Y2R1 / Y5R2<2.00。请参照 Figure 32 , is a schematic diagram illustrating parameters Y2R1 and Y5R2 according to the first embodiment of the present disclosure.

[0144] The various technical features of the camera optical lens assembly disclosed in the present disclosure can be combined and configured to achieve corresponding effects.

[0145] In the camera optical lens assembly disclosed herein, the lens can be made of glass or plastic. If the lens is made of glass, the freedom of refractive power configuration of the camera optical lens assembly can be increased, and the impact of external ambient temperature changes on imaging can be reduced. Glass lenses can be manufactured using techniques such as grinding or molding. If the lens is made of plastic, production costs can be effectively reduced. Furthermore, a spherical surface (SPH) or an aspherical surface (ASP) can be provided on the mirror surface. Spherical lenses can reduce manufacturing difficulty, while providing an aspherical surface on the mirror surface provides more control variables, thereby reducing aberrations, reducing the number of lenses, and effectively reducing the overall length of the camera optical lens assembly disclosed herein. Furthermore, the aspherical surface can be manufactured by methods such as plastic injection molding or molded glass lenses.

[0146] In the camera optical lens assembly disclosed in the present disclosure, if the lens surface is aspherical, it means that the entire or a portion of the optically effective area of ​​the lens surface is aspherical.

[0147] In the camera optical lens assembly disclosed herein, additives can be selectively added to any one (or more) of the lens materials to produce light absorption or interference effects, thereby altering the lens's transmittance for light in specific wavelengths, thereby reducing stray light and color shift. For example, the additive can filter out light in the 600-800 nm wavelength range from the system to help reduce excess red or infrared light; or it can filter out light in the 350-450 nm wavelength range to reduce excess blue or ultraviolet light. Thus, the additive can prevent interference from light in specific wavelengths on imaging. Furthermore, the additive can be uniformly mixed into plastic and fabricated into lenses using injection molding technology. Furthermore, the additive can also be applied as a coating on the lens surface to provide the aforementioned effects.

[0148] In the camera optical lens assembly disclosed herein, if the lens surface is convex and the position of the convex surface is undefined, it means that the convex surface may be located near the optical axis of the lens surface; if the lens surface is concave and the position of the concave surface is undefined, it means that the concave surface may be located near the optical axis of the lens surface. If the refractive power or focal length of the lens is not defined in its area, it means that the refractive power or focal length of the lens may be the refractive power or focal length of the lens at the near optical axis.

[0149] In the camera optical lens assembly disclosed herein, the inflection point of a lens surface refers to the intersection of the positive and negative curvatures of the lens surface. The critical point of a lens surface refers to the point of tangency between a plane perpendicular to the optical axis and the lens surface, and the critical point is not located on the optical axis.

[0150] In the camera optical lens assembly disclosed in the present invention, the imaging surface of the camera optical lens assembly can be a plane or a curved surface with any curvature, especially a curved surface with a concave surface facing the object side, depending on the corresponding electronic photosensitive element.

[0151] In the imaging optical lens assembly disclosed herein, one or more image correction elements (such as field flattening elements) can be optionally positioned between the lens closest to the imaging surface and the imaging surface in the imaging optical path to achieve image correction effects (such as image curvature). The optical properties of the image correction element, such as curvature, thickness, refractive index, position, and surface shape (convex or concave, spherical or aspherical, diffractive, Fresnel, etc.), can be adjusted to suit the requirements of the imaging device. Generally speaking, a preferred image correction element configuration is a thin plano-concave element with a concave surface facing the object side, positioned near the imaging surface.

[0152] In the camera optical lens assembly disclosed in the present disclosure, at least one element with a function of deflecting the optical path, such as a prism or a reflector, can be selectively arranged between the object and the imaging surface on the imaging optical path. The prism surface or the reflector surface can be a flat surface, a spherical surface, an aspherical surface, or a free-form surface, so as to provide a more flexible spatial configuration of the camera optical lens assembly, so that the thinness and lightness of the electronic device are not restricted by the total optical length of the camera optical lens assembly. For further explanation, please refer to Figure 34 and Figure 35 ,in Figure 34 is a schematic diagram illustrating a configuration relationship of an optical path turning element in a camera optical lens assembly according to the present disclosure, and Figure 35 FIG. 1 is a schematic diagram illustrating another configuration relationship of an optical path deflection element in a camera optical lens assembly according to the present disclosure. Figure 34 and Figure 35 As shown, the camera optical lens assembly can be arranged along an optical path from the object (not shown) to the imaging surface IMG, and sequentially has a first optical axis OA1, an optical path turning element LF and a second optical axis OA2, wherein the optical path turning element LF can be as shown. Figure 34 As shown, it is arranged between the object and the lens group LG of the camera optical lens group, or as shown in FIG. Figure 35 The figure shows the lens group LG and the imaging surface IMG of the camera optical lens assembly. Figure 36 , is a schematic diagram illustrating a configuration relationship of two optical path turning elements in a camera optical lens assembly according to the present disclosure, such as Figure 36As shown, the camera optical lens group can also be arranged along the optical path from the object (not shown) to the imaging surface IMG, and has a first optical axis OA1, a first optical path turning element LF1, a second optical axis OA2, a second optical path turning element LF2 and a third optical axis OA3 in sequence, wherein the first optical path turning element LF1 is arranged between the object and the lens group LG of the camera optical lens group, and the second optical path turning element LF2 is arranged between the lens group LG of the camera optical lens group and the imaging surface IMG, and the direction of light along the first optical axis OA1 can be as follows: Figure 36 The direction shown is the same as the direction of light traveling along the third optical axis OA3. The camera optical lens assembly can also be optionally configured with more than three optical path turning elements. The present disclosure is not limited to the type, quantity and position of the optical path turning elements disclosed in the drawings.

[0153] The camera optical lens assembly disclosed herein may include at least one aperture stop, which may be located before the first lens, between each lens, or after the last lens. The aperture stop, such as a glare stop or a field stop, can be used to reduce stray light and improve image quality.

[0154] In the camera optical lens assembly disclosed herein, the aperture can be configured as either a front aperture or a center aperture. A front aperture means the aperture is positioned between the subject and the first lens element, while a center aperture means the aperture is positioned between the first lens element and the imaging plane. A front aperture creates a longer distance between the exit pupil and the imaging plane, creating a telecentric effect and increasing the efficiency of the CCD or CMOS sensor receiving images. A center aperture helps expand the camera optical lens assembly's field of view.

[0155] The present disclosure may appropriately include a variable aperture element. This variable aperture element may be a mechanical component or a light control element that can control the size and shape of the aperture electrically or with electrical signals. The mechanical component may include movable parts such as blades or shielding plates; the light control element may include shielding materials such as filters, electrochromic materials, and liquid crystal layers. The variable aperture element can enhance image adjustment capabilities by controlling the amount of light entering the image or the exposure time. Furthermore, the variable aperture element may also be the aperture of the present disclosure, which can adjust image quality, such as depth of field or exposure speed, by changing the aperture value.

[0156] The present disclosure may employ the appropriate placement of one or more optical elements to restrict the form of light passing through the camera optical system. Such optical elements may be filters, polarizers, and the like, but are not limited thereto. Furthermore, such optical elements may be monolithic, composite, or in the form of films, but are not limited thereto. These optical elements may be placed at the object end, image end, or between lenses of the camera optical system to control the passage of specific light patterns, thereby meeting application requirements.

[0157] The camera optical lens assembly disclosed herein may include at least one optical lens, optical element, or carrier, at least one surface of which has a low-reflection layer. The low-reflection layer can effectively reduce stray light generated by light reflection at the interface. The low-reflection layer can be disposed on an inactive area of ​​the object-side surface or image-side surface of the optical lens, or on the connecting surface between the object-side surface and the image-side surface. The optical element can be a light-shielding element, an annular spacer element, a lens barrel element, flat glass (cover glass), blue glass, a filter element (color filter), an optical path deflection element (reflection element), a prism, or a mirror. The carrier can be a lens assembly mount, a microlens disposed on a photosensitive element, the periphery of a photosensitive element substrate, or a glass sheet used to protect the photosensitive element.

[0158] In the camera optical lens assembly disclosed in the present disclosure, the object side and the image side are determined according to the direction of the optical axis, and the data on the optical axis is calculated along the optical axis. If the optical axis is deflected by an optical path deflection element, the data on the optical axis is also calculated along the optical axis.

[0159] According to the above-mentioned embodiments, specific embodiments are presented below and described in detail with reference to the drawings.

[0160] <First embodiment>

[0161] Please refer to Figures 1 to 2 ,in Figure 1 FIG. 1 is a schematic diagram of an imaging device according to a first embodiment of the present disclosure. Figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment. Figure 1 As can be seen, the imaging device 1 includes a camera optical assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical assembly includes, in order from the object side to the image side, a first lens E1, an aperture S1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, a filter E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0162] The first lens E1 has a negative refractive power, is made of glass, has a concave surface on the object side near the optical axis, has a concave surface on the image side near the optical axis, both surfaces are aspheric surfaces, the object side surface has one inflection point, and the object side surface has one critical point away from the optical axis.

[0163] The second lens E2 has a positive refractive power, is made of plastic, has a concave surface on the object side near the optical axis, has a convex surface on the image side near the optical axis, both surfaces are aspheric surfaces.

[0164] The third lens E3 has a positive refractive power, is made of plastic, has a convex surface on the object side near the optical axis, has a concave surface on the image side near the optical axis, both surfaces are aspheric surfaces, and the object side surface has one inflection point.

[0165] The fourth lens E4 has a positive refractive power, is made of plastic, has a convex surface on the object side near the optical axis, has a convex surface on the image side near the optical axis, both surfaces are aspheric surfaces.

[0166] The fifth lens E5 has a negative refractive power, is made of plastic, has a concave surface on the object side near the optical axis, has a concave surface on the image side near the optical axis, both surfaces are aspheric surfaces, and the image side surface has two inflection points.

[0167] The sixth lens E6 has a negative refractive power, is made of plastic, has a convex surface on the object side near the optical axis, has a concave surface on the image side near the optical axis, both surfaces are aspheric surfaces, the object side surface has two inflection points, the image side surface has one inflection point, the object side surface has one critical point away from the optical axis, and the image side surface has one critical point away from the optical axis.

[0168] The filter element E7 is made of glass, is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens.

[0169] In the present embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens is Ymin, and the maximum effective radius of the image side surface of the third lens E3 is equal to Ymin.

[0170] The aspheric curve equation of each lens is shown as follows:

[0171]

[0172] X: the displacement of the intersection point of the aspheric surface and the optical axis to the point on the aspheric surface with a distance Y from the optical axis parallel to the optical axis;

[0173] Y: the vertical distance of the point on the aspheric curve from the optical axis;

[0174] R: radius of curvature;

[0175] k: cone coefficient; and

[0176] Ai: i-th order aspheric coefficient.

[0177] In the camera optical lens assembly of the first embodiment, the focal length of the camera optical lens assembly is f, the aperture value of the camera optical lens assembly is Fno, and half of the maximum viewing angle of the camera optical lens assembly is HFOV, whose values ​​are as follows: f=1.91 millimeters (mm), Fno=2.40, and HFOV=72.5 degrees (deg.).

[0178] The maximum viewing angle in the camera optical lens assembly is FOV, which satisfies the following condition: FOV=144.9 degrees.

[0179] The distance between the object-side surface of the first lens E1 and the imaging plane IMG on the optical axis is TL, and the maximum imaging height of the camera optical lens assembly is ImgH, which satisfies the following condition: TL / ImgH=2.78.

[0180] The maximum viewing angle in the camera optical lens assembly is FOV, which satisfies the following condition: tan(FOV)=-0.70.

[0181] The distance on the optical axis from the object-side surface of the first lens E1 to the image-side surface of the sixth lens E6 is TD, and the entrance pupil diameter of the camera optical lens assembly is EPD, which satisfies the following condition: TD / EPD=7.01.

[0182] The distance on the optical axis from the object-side surface of the first lens E1 to the image-side surface of the sixth lens E6 is TD, and the focal length of the camera optical lens assembly is f, which satisfies the following condition: TD / f=2.92.

[0183] The focal length of the camera optical lens assembly is f, the focal length of the first lens E1 is f1, the focal length of the second lens E2 is f2, the focal length of the third lens E3 is f3, the focal length of the fourth lens E4 is f4, the focal length of the fifth lens E5 is f5, the focal length of the sixth lens E6 is f6, and the focal length of the j-th lens is fj. The maximum absolute value of f / fj is |f / fj|max, which satisfies the following condition: |f / fj|max=1.24, where j=1, 2, 3, 4, 5, or 6. In this embodiment, the absolute value of f / f4 (i.e., |f / f4|) is greater than |f / f1|, |f / f2|, |f / f3|, |f / f5|, and |f / f6|, so |f / fj|max is equal to the absolute value of f / f4.

[0184] The focal length of the camera optical lens assembly is f, and the focal length of the third lens E3 is f3, which satisfies the following condition: f / f3=0.03.

[0185] The focal length of the camera optical lens assembly is f, and the focal length of the fifth lens element E5 is f5, which satisfies the following condition: f / f5=-0.65.

[0186] The focal length of the camera optical lens assembly is f, and the combined focal length of the first lens E1 and the second lens E2 is f12, which satisfies the following condition: f / f12=-0.21.

[0187] The focal length of the camera optical lens assembly is f, and the combined focal length of the fourth lens element E4 and the fifth lens element E5 is f45, which satisfies the following condition: f / f45=0.78.

[0188] The focal length of the camera optical lens assembly is f, the curvature radius of the object-side surface of the sixth lens E6 is R11, and the curvature radius of the image-side surface of the sixth lens E6 is R12, which satisfies the following condition: f / |R11|+f / |R12|=1.56.

[0189] The curvature radius of the object-side surface of the second lens E2 is R3, and the curvature radius of the image-side surface of the second lens E2 is R4, which satisfy the following condition: (R3+R4) / (R3-R4)=7.61.

[0190] The maximum distance between all adjacent lenses in the camera optical lens assembly on the optical axis is ATmax. The focal length of the camera optical lens assembly is f, which satisfies the following condition: ATmax / f=0.55. In this embodiment, the distance between the first lens E1 and the second lens E2 on the optical axis is greater than the distance between the other adjacent lenses in the camera optical lens assembly on the optical axis. Therefore, ATmax is equal to the distance between the first lens E1 and the second lens E2 on the optical axis.

[0191] The distance on the optical axis from the image-side surface of the sixth lens E6 to the imaging plane IMG is BL, and the distance on the optical axis from the object-side surface of the first lens E1 to the imaging plane IMG is TL, which satisfy the following condition: BL / TL=0.17.

[0192] The distance on the optical axis from the aperture ST to the imaging plane IMG is SL, and the distance on the optical axis from the object-side surface of the first lens E1 to the imaging plane IMG is TL, which satisfies the following condition: SL / TL=0.53.

[0193] The distance on the optical axis between the object-side surface of the first lens E1 and the image-side surface of the sixth lens E6 is TD. The distance on the optical axis between the fifth lens E5 and the sixth lens E6 is T56, which satisfies the following condition: TD / T56=8.85. In this embodiment, the distance on the optical axis between two adjacent lenses refers to the distance on the optical axis between two adjacent mirror surfaces of the two adjacent lenses.

[0194] The distance between the first lens E1 and the second lens E2 on the optical axis is T12, and the distance between the second lens E2 and the third lens E3 on the optical axis is T23, which satisfies the following condition: T23 / T12=0.028.

[0195] The distance between the third lens E3 and the fourth lens E4 on the optical axis is T34, and the distance between the fifth lens E5 and the sixth lens E6 on the optical axis is T56, which satisfies the following condition: T56 / T34=4.10.

[0196] The minimum Abbe number of all lenses in the camera optical lens assembly is Vmin, which satisfies the following condition: Vmin = 18.2. In this embodiment, the Abbe number of the fifth lens element E5 is smaller than the Abbe numbers of the remaining lenses in the camera optical lens assembly, so Vmin is equal to the Abbe number of the fifth lens element E5.

[0197] The Abbe number of the third lens E3 is V3, and the Abbe number of the fifth lens E5 is V5, which satisfy the following condition: V3+V5=38.6.

[0198] The maximum refractive index of all lenses in the camera optical lens assembly is Nmax, which satisfies the following condition: Nmax = 1.680. In this embodiment, the refractive index of the fifth lens element E5 is greater than the refractive indexes of the remaining lenses in the camera optical lens assembly, so Nmax is equal to the refractive index of the fifth lens element E5.

[0199] The maximum effective radius of the object-side surface of the first lens E1 is Y1R1, and the maximum effective radius of the image-side surface of the sixth lens E6 is Y6R2, which satisfy the following condition: Y1R1 / Y6R2=1.42.

[0200] The maximum effective radius of the object-side surface of the second lens E2 is Y2R1, and the maximum effective radius of the image-side surface of the fifth lens E5 is Y5R2, which satisfy the following condition: Y2R1 / Y5R2=1.29.

[0201] The distance between the first lens E1 and the second lens E2 on the optical axis is T12, the distance between the second lens E2 and the third lens E3 on the optical axis is T23, the distance between the third lens E3 and the fourth lens E4 on the optical axis is T34, the distance between the fifth lens E5 and the sixth lens E6 on the optical axis is T56, and the thickness of the second lens E2 on the optical axis is CT2, which satisfies the following conditions: T23 <T12;T34<CT2;以及T23<T56。

[0202] Please refer to Table 1A and Table 1B below.

[0203]

[0204]

[0205]

[0206] Table 1A is Figure 1 Detailed structural data for the first embodiment is provided, with the units of curvature radius, thickness, and focal length expressed in millimeters (mm). Surfaces 0 through 18 represent the surfaces from the object side to the image side, respectively. Table 1B shows the aspheric surface data for the first embodiment, where k is the conic coefficient in the aspheric curve equation, and A4 through A20 represent the 4th through 20th order aspheric coefficients for each surface. Furthermore, the tables in the following embodiments correspond to the schematic diagrams and aberration curves for each embodiment. The definitions of the data in the tables are the same as those in Tables 1A and 1B of the first embodiment and are not further elaborated here.

[0207] <Second embodiment>

[0208] Please refer to Figures 3 to 4 ,in Figure 3 FIG. 1 is a schematic diagram of an imaging device according to a second embodiment of the present disclosure. Figure 4 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment. Figure 3 As can be seen, the imaging device 2 includes a camera optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The camera optical lens assembly includes, in order from the object side to the image side, a first lens E1, an aperture S1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0209] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0210] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0211] The third lens element E3 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and the object-side surface has an inflection point.

[0212] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical.

[0213] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has one inflection point, its image-side surface has two inflection points, and its object-side surface has a critical point in an off-axis position.

[0214] The sixth lens element E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has one inflection point, and its image-side surface has a critical point at an off-axis position.

[0215] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0216] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the image-side surface of the third lens E3 is equal to Ymin.

[0217] Please refer to Table 2A and Table 2B below.

[0218]

[0219]

[0220]

[0221] In the second embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 2C below are the same as those in the first embodiment and are not repeated here.

[0222]

[0223] <Third embodiment>

[0224] Please refer to Figures 5 to 6 ,in Figure 5 FIG. 1 is a schematic diagram of an imaging device according to a third embodiment of the present disclosure. Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment. Figure 5As can be seen, the imaging device 3 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly comprises, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0225] The first lens E1 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point at an off-axis position.

[0226] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0227] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, with one inflection point on the object-side surface and one inflection point on the image-side surface.

[0228] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0229] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. The image-side surface has an inflection point and a critical point at an off-axis position.

[0230] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has three inflection points, its image-side surface has one inflection point, its object-side surface has a critical point at off-axis positions, and its image-side surface has a critical point at off-axis positions.

[0231] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0232] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the object-side surface of the fourth lens E4 is equal to Ymin.

[0233] Please refer to Table 3A and Table 3B below.

[0234]

[0235]

[0236]

[0237] In the third embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 3C below are the same as those in the first embodiment and are not repeated here.

[0238]

[0239] <Fourth embodiment>

[0240] Please refer to Figures 7 to 8 ,in Figure 7 FIG. 1 is a schematic diagram of an imaging device according to a fourth embodiment of the present disclosure. Figure 8 From left to right are the spherical aberration, astigmatism and distortion curves of the fourth embodiment. Figure 7 As can be seen, the imaging device 4 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly comprises, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0241] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are spherical.

[0242] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0243] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and the object-side surface has an inflection point.

[0244] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0245] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is also concave near the optical axis. Both surfaces are aspherical.

[0246] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has one inflection point, its object-side surface has a critical point at off-axis positions, and its image-side surface has a critical point at off-axis positions.

[0247] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0248] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the image-side surface of the third lens E3 is equal to Ymin.

[0249] Please refer to Table 4A and Table 4B below.

[0250]

[0251]

[0252]

[0253] In the fourth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 4C below are the same as those in the first embodiment and are not repeated here.

[0254]

[0255] <Fifth embodiment>

[0256] Please refer to Figures 9 to 10 ,in Figure 9 FIG. 1 is a schematic diagram of an imaging device according to a fifth embodiment of the present disclosure. Figure 10 From left to right are the spherical aberration, astigmatism and distortion curves of the fifth embodiment. Figure 9As can be seen, the imaging device 5 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0257] The first lens E1 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point at an off-axis position.

[0258] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0259] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, with one inflection point on the object-side surface and one inflection point on the image-side surface.

[0260] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0261] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point off-axis.

[0262] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, its image-side surface has an inflection point, and its image-side surface has a critical point in an off-axis position.

[0263] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0264] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the object-side surface of the fourth lens E4 is equal to Ymin.

[0265] Please refer to Table 5A and Table 5B below.

[0266]

[0267]

[0268]

[0269] In the fifth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 5C below are the same as those in the first embodiment and are not repeated here.

[0270]

[0271] <Sixth embodiment>

[0272] Please refer to Figures 11 to 12 ,in Figure 11 FIG. 1 is a schematic diagram of an imaging device according to a sixth embodiment of the present disclosure. Figure 12 From left to right are the spherical aberration, astigmatism and distortion curves of the sixth embodiment. Figure 11 As can be seen, the imaging device 6 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly comprises, in order from the object side to the image side, a first lens E1, an aperture S1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0273] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point at an off-axis position.

[0274] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0275] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and the object-side surface has an inflection point.

[0276] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical.

[0277] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has one inflection point, its image-side surface has two inflection points, and its object-side surface has a critical point in an off-axis position.

[0278] The sixth lens element E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, its image-side surface has an inflection point, and its image-side surface has a critical point at an off-axis position.

[0279] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0280] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the image-side surface of the third lens E3 is equal to Ymin.

[0281] Please refer to Table 6A and Table 6B below.

[0282]

[0283]

[0284]

[0285] In the sixth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 6C below are the same as those in the first embodiment and are not repeated here.

[0286]

[0287]

[0288] <Seventh embodiment>

[0289] Please refer to Figures 13 to 14 ,in Figure 13FIG. 1 is a schematic diagram of an imaging device according to a seventh embodiment of the present disclosure. Figure 14 From left to right are the spherical aberration, astigmatism and distortion curves of the seventh embodiment. Figure 13 As can be seen, the imaging device 7 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly comprises, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0290] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are spherical.

[0291] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has two inflection points, and its image-side surface has one inflection point.

[0292] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0293] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0294] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has one inflection point, its image-side surface has two inflection points, and its object-side surface has a critical point in an off-axis position.

[0295] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has one inflection point, its object-side surface has a critical point at off-axis positions, and its image-side surface has a critical point at off-axis positions.

[0296] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0297] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the image-side surface of the third lens E3 is equal to Ymin.

[0298] Please refer to Table 7A and Table 7B below.

[0299]

[0300]

[0301]

[0302] In the seventh embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 7C below are the same as those in the first embodiment and are not repeated here.

[0303]

[0304] <Eighth Embodiment>

[0305] Please refer to Figures 15 to 16 ,in Figure 15 FIG. 1 is a schematic diagram of an imaging device according to an eighth embodiment of the present disclosure. Figure 16 From left to right are the spherical aberration, astigmatism and distortion curves of the eighth embodiment. Figure 15 As can be seen, the imaging device 8 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly comprises, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0306] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0307] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0308] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and the object-side surface has an inflection point.

[0309] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical.

[0310] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point off-axis.

[0311] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has one inflection point, its object-side surface has a critical point at off-axis positions, and its image-side surface has a critical point at off-axis positions.

[0312] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0313] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the object-side surface of the fourth lens E4 is equal to Ymin.

[0314] Please refer to Table 8A and Table 8B below.

[0315]

[0316]

[0317]

[0318] In the eighth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in the following Table 8C are the same as those in the first embodiment and are not repeated here.

[0319]

[0320] Ninth embodiment

[0321] Please refer to Figures 17 to 18 ,in Figure 17 FIG. 1 is a schematic diagram of an imaging device according to a ninth embodiment of the present disclosure. Figure 18From left to right are the spherical aberration, astigmatism and distortion curves of the ninth embodiment. Figure 17 As can be seen, the imaging device 9 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly comprises, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0322] The first lens E1 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0323] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0324] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, with one inflection point on the object-side surface and one inflection point on the image-side surface.

[0325] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical.

[0326] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point off-axis.

[0327] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has two inflection points, its object-side surface has a critical point at off-axis positions, and its image-side surface has a critical point at off-axis positions.

[0328] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0329] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the image-side surface of the fourth lens E4 is equal to Ymin.

[0330] Please refer to Table 9A and Table 9B below.

[0331]

[0332]

[0333] In the ninth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in the following Table 9C are the same as those in the first embodiment and are not repeated here.

[0334]

[0335] <Tenth embodiment>

[0336] Please refer to Figures 19 to 20 ,in Figure 19 FIG. 1 is a schematic diagram of an imaging device according to a tenth embodiment of the present disclosure. Figure 20 From left to right are the spherical aberration, astigmatism and distortion curves of the tenth embodiment. Figure 19 As can be seen, the imaging device 10 includes a camera optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The camera optical lens assembly includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0337] The first lens E1 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point at an off-axis position.

[0338] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0339] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, with one inflection point on the object-side surface and one inflection point on the image-side surface.

[0340] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0341] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point off-axis.

[0342] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the object-side surface has an inflection point.

[0343] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0344] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the image-side surface of the third lens E3 is equal to Ymin.

[0345] Please refer to Table 10A and Table 10B below.

[0346]

[0347]

[0348]

[0349] In the tenth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in the following Table 10C are the same as those in the first embodiment and are not repeated here.

[0350]

[0351] <Eleventh Embodiment>

[0352] Please refer to Figures 21 to 22 ,in Figure 21 FIG. 1 is a schematic diagram illustrating an imaging device according to an eleventh embodiment of the present disclosure. Figure 22 From left to right are the spherical aberration, astigmatism and distortion curves of the eleventh embodiment. Figure 21As can be seen, the imaging device 11 includes a camera optical lens assembly (not separately numbered) and an electronic photosensitive element IS. The camera optical lens assembly includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0353] The first lens E1 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0354] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0355] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has one inflection point, and its image-side surface has two inflection points.

[0356] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0357] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point off-axis.

[0358] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, its image-side surface has an inflection point, and its image-side surface has a critical point in an off-axis position.

[0359] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0360] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the object-side surface of the fourth lens E4 is equal to Ymin.

[0361] Please refer to Table 11A and Table 11B below.

[0362]

[0363]

[0364]

[0365] In the eleventh embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment.

[0366] The definitions described in Table 11C are the same as those in the first embodiment and are not repeated here.

[0367]

[0368]

[0369] <Twelfth embodiment>

[0370] Please refer to Figures 23 to 24 ,in Figure 23 FIG. 1 is a schematic diagram of an imaging device according to a twelfth embodiment of the present disclosure. Figure 24 From left to right are the spherical aberration, astigmatism and distortion curves of the twelfth embodiment. Figure 23 As can be seen, the imaging device 12 includes a camera optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The camera optical lens assembly includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture ST, a fourth lens E4, a fifth lens E5, a stop S1, a sixth lens E6, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The camera optical lens assembly comprises six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the lenses.

[0371] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and the image-side surface has an inflection point.

[0372] The second lens E2 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical.

[0373] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, with one inflection point on the object-side surface and one inflection point on the image-side surface.

[0374] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and the object-side surface has an inflection point.

[0375] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point and a critical point off-axis.

[0376] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is also concave near the optical axis. Both surfaces are aspherical. Its object-side surface has one inflection point, its image-side surface has two inflection points, and its image-side surface has a critical point in an off-axis position.

[0377] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging surface IMG, and does not affect the focal length of the camera optical lens assembly.

[0378] In this embodiment, the minimum value of the maximum effective radius of all lens surfaces of the camera optical lens assembly is Ymin, and the maximum effective radius of the image-side surface of the third lens E3 is equal to Ymin.

[0379] Please refer to Table 12A and Table 12B below.

[0380]

[0381]

[0382]

[0383] In the twelfth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment.

[0384] The definitions described in Table 12C are the same as those in the first embodiment and are not repeated here.

[0385]

[0386] <Thirteenth embodiment>

[0387] Please refer to Figure 25, is a perspective schematic diagram illustrating an imaging device according to the thirteenth embodiment of the present disclosure. In this embodiment, the imaging device 100 is a camera module. The imaging device 100 includes an imaging lens 101, a driving device 102, an electronic photosensitive element 103, and an image stabilization module 104. The imaging lens 101 includes the camera optical lens assembly of the first embodiment described above, a lens barrel (not separately labeled) for carrying the camera optical lens assembly, and a support device (Holder Member, not separately labeled). The imaging lens 101 can also be configured with the camera optical lens assembly of other embodiments described above, and the present disclosure is not limited thereto. The imaging device 100 uses the imaging lens 101 to focus light to generate an image, and cooperates with the driving device 102 to focus the image. Finally, an image is formed on the electronic photosensitive element 103 and can be output as image data.

[0388] The driving device 102 can have an auto-focus function and can be driven by a driving system such as a voice coil motor (VCM), micro electro-mechanical systems (MEMS), piezoelectric systems, and shape memory alloys. The driving device 102 allows the imaging lens 101 to achieve an optimal imaging position, providing clear images of the subject at various object distances. Furthermore, the imaging device 100 is equipped with a highly sensitive and low-noise electronic photosensitive element 103 (such as a CMOS or CCD) disposed on the imaging surface of the camera optical lens assembly, effectively displaying the excellent imaging quality of the camera optical lens assembly.

[0389] The image stabilization module 104 can be, for example, an accelerometer, a gyroscope, or a Hall Effect Sensor. The driving device 102 can be used in conjunction with the image stabilization module 104 to function as an optical image stabilization (OIS) device. This device can compensate for image blur caused by shaking during shooting by adjusting the different axial directions of the imaging lens 101. Alternatively, it can utilize image compensation technology within imaging software to provide electronic image stabilization (EIS), further enhancing image quality in dynamic and low-light scenes.

[0390] <Fourteenth embodiment>

[0391] Please refer to Figures 26 to 28 ,in Figure 26 A three-dimensional schematic diagram of one side of an electronic device according to a fourteenth embodiment of the present disclosure is shown. Figure 27 Draw Figure 26A three-dimensional schematic diagram of the other side of the electronic device, and Figure 28 Draw Figure 26 A system block diagram of an electronic device.

[0392] In this embodiment, the electronic device 200 is a smartphone. The electronic device 200 includes the imaging device 100, imaging device 100a, imaging device 100b, imaging device 100c, imaging device 100d, imaging device 100e, a flash module 201, a focus assist module 202, an image signal processor 203, a display module 204, and an image software processor 205 of the thirteenth embodiment. The imaging devices 100, 100a, and 100b are all located on the same side of the electronic device 200 and all have a single focus. The focus assist module 202 can utilize a laser rangefinder or a time-of-flight (ToF) module, but the present disclosure is not limited thereto. The imaging devices 100c, 100d, and 100e, along with the display module 204, are all located on the other side of the electronic device 200. The display module 204 can serve as a user interface, allowing the imaging devices 100c, 100d, and 100e to function as front-facing cameras for selfie capture, but the present disclosure is not limited thereto. Furthermore, the imaging devices 100a, 100b, 100c, 100d, and 100e can each include the imaging optics of the present disclosure and have a similar structural configuration to the imaging device 100. Specifically, the imaging devices 100a, 100b, 100c, 100d, and 100e can each include an imaging lens, a drive device, an electronic photosensitive element, and an image stabilization module, and can each include an optical path deflection element to deflect the optical path. The imaging lenses of the imaging devices 100a, 100b, 100c, 100d and 100e may each include, for example, the camera optical lens assembly disclosed herein, a lens barrel for carrying the camera optical lens assembly, and a supporting device.

[0393] The imaging device 100 is a wide-angle imaging device, the imaging device 100a is a telephoto imaging device with a turning optical path, the imaging device 100b is an ultra-wide-angle imaging device, the imaging device 100c is a wide-angle imaging device, the imaging device 100d is an ultra-wide-angle imaging device, and the imaging device 100e is a time-of-flight ranging imaging device. The imaging devices 100, 100a, and 100b of this embodiment have different viewing angles, allowing the electronic device 200 to provide different magnifications to achieve an optical zoom shooting effect. In addition, the imaging device 100e can obtain depth information of the image. The optical path turning configuration of the imaging device 100a can, for example, have a similar Figures 34 to 36 The structure of Figures 34 to 36 In addition, the imaging devices 100, 100b, 100c, 100d, 100e may also have an optical path turning configuration, and may also have a similar Figures 34 to 36 The structure of Figures 34 to 36 The electronic device 200 is taken as an example to include a plurality of imaging devices 100, 100a, 100b, 100c, 100d, and 100e, but the number and configuration of the imaging devices are not intended to limit the present disclosure.

[0394] When a user photographs subject 206, electronic device 200 utilizes imaging device 100, imaging device 100a, or imaging device 100b to focus and capture the image. Flash module 201 is activated for fill light. Focus assist module 202 provides distance information about subject 206 for rapid focus. Image signal processor 203 then performs image optimization processing to further enhance the image quality produced by the camera optics. Focus assist module 202 may utilize an infrared or laser focus assist system to achieve rapid focus. Furthermore, electronic device 200 may also utilize imaging device 100c, imaging device 100d, or imaging device 100e for photography. Display module 204 may utilize a touch screen, coupled with the diverse functions of image software processor 205, for image capture and processing (or a physical capture button may be used). Images processed by image software processor 205 are displayed on display module 204.

[0395] <Fifteenth embodiment>

[0396] Please refer to Figure 29 and Figure 30 ,in Figure 29 A schematic diagram illustrating one side of an electronic device according to a fifteenth embodiment of the present disclosure is shown, and Figure 30 Draw Figure 29 Schematic diagram of the other side of the electronic device.

[0397] In this embodiment, the electronic device 300 is a smart phone. The electronic device 300 includes the imaging device 100, the imaging device 100f, the imaging device 100g, the imaging device 100h and the display module 301 of the thirteenth embodiment. Figure 29 As shown, the imaging device 100, the imaging device 100f and the imaging device 100g are all disposed on the same side of the electronic device 300 and are all single-focus. Figure 30 As shown, the imaging device 100h and the display module 301 are both disposed on the other side of the electronic device 300. The imaging device 100h can serve as a front-facing lens to provide a selfie function, but the present disclosure is not limited to this. Furthermore, the imaging devices 100f, 100g, and 100h can all include the imaging optical lens assembly disclosed herein and have a similar structural configuration to the imaging device 100. Specifically, the imaging devices 100f, 100g, and 100h can each include an imaging lens, a drive device, an electronic photosensitive element, and an image stabilization module. The imaging lenses of the imaging devices 100f, 100g, and 100h can each include, for example, the imaging optical lens assembly disclosed herein, a lens barrel for supporting the imaging optical lens assembly, and a supporting device.

[0398] Image capture device 100 is a wide-angle image capture device, image capture device 100f is a telephoto image capture device, image capture device 100g is an ultra-wide-angle image capture device, and image capture device 100h is a wide-angle image capture device. Image capture devices 100, 100f, and 100g of this embodiment have different viewing angles, allowing electronic device 300 to provide different magnifications, thereby achieving an optical zoom photography effect. While the electronic device 300 described above includes multiple image capture devices 100, 100f, 100g, and 100h, the number and configuration of the image capture devices are not intended to limit this disclosure.

[0399] <Sixteenth embodiment>

[0400] Please refer to Figure 31 , is a schematic three-dimensional diagram illustrating one side of an electronic device according to the sixteenth embodiment of the present disclosure.

[0401] In this embodiment, the electronic device 400 is a smartphone. The electronic device 400 includes the imaging device 100, 100i, 100j, 100k, 100m, 100n, 100p, 100q, and 100r of the thirteenth embodiment, a flash module 401, a focus assist module, an image signal processor, a display module, and an image software processor (not shown). The imaging devices 100, 100i, 100j, 100k, 100m, 100n, 100p, 100q, and 100r are all located on the same side of the electronic device 400, while the display module is located on the other side of the electronic device 400. Furthermore, the imaging devices 100i, 100j, 100k, 100m, 100n, 100p, 100q, and 100r may all include the imaging optical lens assembly disclosed herein and may have a similar structural configuration to the imaging device 100, which will not be further described herein.

[0402] Image capture device 100 is a wide-angle image capture device, image capture device 100i is a telephoto image capture device with a bend in the optical path, image capture device 100j is a telephoto image capture device with a bend in the optical path, image capture device 100k is a wide-angle image capture device, image capture device 100m is an ultra-wide-angle image capture device, image capture device 100n is an ultra-wide-angle image capture device, image capture device 100p is a telephoto image capture device, image capture device 100q is a telephoto image capture device, and image capture device 100r is a time-of-flight range-finding image capture device. Image capture devices 100, 100i, 100j, 100k, 100m, 100n, 100p, and 100q of this embodiment have different viewing angles, allowing electronic device 400 to provide different magnifications, thereby achieving an optical zoom photography effect. In addition, the imaging device 100r can obtain the depth information of the image. Figures 34 to 36 The structure of Figures 34 to 36The electronic device 400 is described above as including a plurality of imaging devices 100, 100i, 100j, 100k, 100m, 100n, 100p, 100q, and 100r as an example, but the number and configuration of the imaging devices are not intended to limit the present disclosure. When a user photographs a subject, the electronic device 400 utilizes the imaging device 100, imaging device 100i, imaging device 100j, imaging device 100k, imaging device 100m, imaging device 100n, imaging device 100p, imaging device 100q, or imaging device 100r to focus light and capture an image, activates the flash module 401 for fill light, and performs subsequent processing in a manner similar to the aforementioned embodiment, which is not described in detail here.

[0403] The imaging device disclosed herein is not limited to use in smartphones. The imaging device can also be applied to mobile focus systems as needed, combining excellent aberration correction with high-quality imaging. For example, the imaging device can be widely used in electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile products, tablet computers, smart TVs, network monitoring equipment, dashcams, reversing imaging devices, multi-lens devices, recognition systems, motion-sensing game consoles, drones, wearable products, and portable video recorders. The aforementioned electronic devices are merely illustrative examples of practical applications of the present disclosure and are not intended to limit the scope of application of the imaging device disclosed herein.

[0404] Although the present disclosure is disclosed above with reference to the preferred embodiments, it is not intended to limit the present disclosure. Anyone skilled in the art may make slight changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of patent protection of the present disclosure shall be determined by the claims attached to this specification.

Claims

1. A camera optical lens assembly, characterized in that: It includes six lenses, and the six lenses are, in order from the object side to the image side along the optical path, the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens. And the six lenses respectively have an object-side surface facing the object side direction and an image-side surface facing the image side direction; Among them, the first lens has a negative refractive power, the object-side surface of the second lens is concave near the optical axis, and the image-side surface of the third lens is concave near the optical axis; and Among them, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the sixth lens is TD, the focal length of the imaging optical lens group is f, the focal length of the fifth lens is f5, the spacing distance on the optical axis between the fifth lens and the sixth lens is T56, the distance on the optical axis from the object-side surface of the first lens to an imaging surface is TL, the maximum imaging height of the imaging optical lens group is ImgH, and it satisfies the following conditions: 2.20 < TD / f < 4.50; -0.80 < f / f5 < 0.20; 1.00 < TD / T56 < 35.00; and 0.50 < TL / ImgH < 4.

00.

2. The camera optical lens assembly according to claim 1, characterized in that: The third lens has a negative refractive power, both the object-side surface and the image-side surface of the sixth lens are aspherical surfaces, and at least one of the object-side surface and the image-side surface of the sixth lens has at least one inflection point.

3. The camera optical lens assembly according to claim 1, wherein: The image-side surface of the first lens is concave near the optical axis, and the image-side surface of the fifth lens is concave near the optical axis.

4. The camera optical lens assembly according to claim 1, wherein: The maximum viewing angle in the imaging optical lens group is FOV, and the aperture value of the imaging optical lens group is Fno, and it satisfies the following conditions: 125.0 degrees < FOV; and 1.50 < Fno < 4.

00.

5. The camera optical lens assembly according to claim 1, wherein: The distance on the optical axis from the object-side surface of the first lens to the imaging surface is TL, the maximum imaging height of the imaging optical lens group is ImgH, and it satisfies the following conditions: 0.90 < TL / ImgH < 3.

50.

6. The camera optical lens assembly according to claim 1, wherein: The minimum Abbe number among all the lenses of the imaging optical lens group is Vmin, and it satisfies the following conditions: 5.0 < Vmin < 21.

0.

7. The camera optical lens assembly according to claim 1, characterized in that: The focal length of the imaging optical lens group is f, and the combined focal length of the fourth lens and the fifth lens is f45, and it satisfies the following conditions: 0.45 < f / f45 < 1.

20.

8. The camera optical lens assembly according to claim 1, wherein: The focal length of the imaging optical lens group is f, the radius of curvature of the object-side surface of the sixth lens is R11, and the radius of curvature of the image-side surface of the sixth lens is R12, and it satisfies the following conditions: f / |R11| + f / |R12| < 4.

00.

9. The camera optical lens assembly according to claim 1, characterized in that: The maximum effective radius of the object-side surface of the first lens is Y1R1, and the maximum effective radius of the image-side surface of the sixth lens is Y6R2, and it satisfies the following conditions: 0.60 < Y1R1 / Y6R2 < 8.

00.

10. An imaging device, characterized in that: It includes: The imaging optical lens group according to claim 1; and An electronic photosensitive element disposed on the imaging surface of the imaging optical lens group.

11. An electronic device, characterized in that: It includes: The imaging device according to claim 10.

12. A camera optical lens assembly, characterized in that: The optical system comprises six lenses, wherein the six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens along the optical path from the object side to the image side, and each of the six lenses has an object-side surface facing the object side and an image-side surface facing the image side; wherein the first lens has negative refractive power, the object-side surface of the second lens is concave at the near optical axis, the image-side surface of the third lens is concave at the near optical axis, the fifth lens has negative refractive power, the image-side surface of the sixth lens is concave at the near optical axis, and the image-side surface of the sixth lens has at least one inflection point; and The focal length of the camera optical lens assembly is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the combined focal length of the fourth lens and the fifth lens is f45, the focal length of the j-th lens is fj, the maximum absolute value of f / fj is |f / fj|max, the distance between the first lens and the second lens on the optical axis is T12, the distance between the second lens and the third lens on the optical axis is T23, the distance between the third lens and the fourth lens on the optical axis is T34, and the distance between the fifth lens and the sixth lens on the optical axis is T56. The radius of curvature of the object-side surface of the second lens is R3, and the radius of curvature of the image-side surface of the second lens is R4, which satisfies the following conditions: 0.45 <f / f45<1.00; 0.70 <T56 / T34<20.00; T23 <T12; -5.00 < (R3 + R4) / (R3 - R4); and |f / fj|max<1.50, where j=1, 2, 3, 4, 5 or 6.

13. The camera optical lens assembly according to claim 12, characterized in that: The third lens has negative refractive power, the fourth lens has positive refractive power, the image-side surface of the first lens is concave at the near optical axis, and the image-side surface of the fourth lens is convex at the near optical axis.

14. The camera optical lens assembly according to claim 12, characterized in that: The second lens has positive refractive power.

15. The camera optical lens assembly according to claim 12, characterized in that: The object-side surface of the sixth lens and the image-side surface of the sixth lens are both aspherical, and the image-side surface of the sixth lens has at least one critical point at an off-axis position; and The curvature radius of the object-side surface of the second lens is R3, and the curvature radius of the image-side surface of the second lens is R4, which meet the following conditions: 1.00<(R3+R4) / (R3-R4)<80.

00.

16. The camera optical lens assembly according to claim 12, characterized in that: The optical system further comprises an aperture, wherein the distance between the image-side surface of the sixth lens and an imaging plane on the optical axis is BL, the distance between the object-side surface of the first lens and the imaging plane on the optical axis is TL, and the distance between the aperture and the imaging plane on the optical axis is SL, which satisfies the following conditions: BL / TL < 0.22; and 0.30 <SL / TL<0.80。 17. The camera optical lens assembly according to claim 12, characterized in that: The maximum viewing angle of the camera optical lens assembly is FOV, the distance from the object-side surface of the first lens to an imaging plane on the optical axis is TL, and the maximum imaging height of the camera optical lens assembly is ImgH, which satisfies the following conditions: 110.0 degrees < FOV; and 0.50 < TL / ImgH < 4.

00.

18. The camera optical lens assembly according to claim 12, wherein: The focal length of the imaging optical lens group is f, and the combined focal length of the first lens and the second lens is f12, which satisfies the following condition: f / f12 < 0.

75.

19. The camera optical lens assembly according to claim 12, wherein: The distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, the focal length of the imaging optical lens group is f, the distance on the optical axis between the first lens and the second lens is T12, and the distance on the optical axis between the second lens and the third lens is T23, which satisfies the following conditions: 1.40 < TD / f < 6.00; and T23 / T12 < 0.

80.

20. The camera optical lens assembly according to claim 12, characterized in that: The Abbe number of the third lens is V3, the Abbe number of the fifth lens is V5, and the maximum refractive index among all the lenses of the imaging optical lens group is Nmax, which satisfies the following conditions: 10.0 < V3 + V5 < 80.0; and 1.660 < Nmax.

21. The camera optical lens assembly according to claim 12, wherein: The minimum value of the maximum effective radius among all the lens surfaces of the imaging optical lens group is Ymin, and the maximum effective radius of one of the object side surface of the third lens, the image side surface of the third lens, the object side surface of the fourth lens, and the image side surface of the fourth lens is equal to Ymin.

22. A camera optical lens assembly, characterized in that: It includes six lenses, and the six lenses are, in order from the object side to the image side along the optical path, the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens, and the six lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction; wherein, the first lens has a negative refractive power, the object side surface of the second lens is concave near the optical axis, the image side surface of the third lens is concave near the optical axis, and the fifth lens has a negative refractive power; and wherein, the distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, the focal length of the imaging optical lens group is f, the focal length of the third lens is f3, the distance on the optical axis between the fifth lens and the sixth lens is T56, the distance on the optical axis from the object side surface of the first lens to an imaging surface is TL, and the maximum imaging height of the imaging optical lens group is ImgH, which satisfies the following conditions: 2.20 < TD / f < 4.50; -1.50 < f / f3 < 0.30; 1.00 < TD / T56 < 19.00; and 0.50 < TL / ImgH < 4.

00.

23. The camera optical lens assembly according to claim 22, characterized in that The image side surface of the first lens is concave near the optical axis, the image side surface of the second lens is convex near the optical axis, and the image side surface of the fifth lens is concave near the optical axis.

24. The camera optical lens assembly according to claim 22, characterized in that The thickness of the second lens on the optical axis is CT2, the distance on the optical axis between the second lens and the third lens is T23, the distance on the optical axis between the third lens and the fourth lens is T34, and the distance on the optical axis between the fifth lens and the sixth lens is T56, which satisfies the following conditions: T34 < CT2; and T23 < T56.

25. The camera optical lens assembly according to claim 22, characterized in that In the imaging optical lens group, the maximum viewing angle is FOV, and the maximum refractive index among all the lenses in the imaging optical lens group is Nmax, which satisfies the following conditions: -1.80 < tan(FOV) < 0; and 1.660 < Nmax.

26. The camera optical lens assembly according to claim 22, characterized in that The distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, the focal length of the imaging optical lens group is f, the distance on the optical axis from the object side surface of the first lens to the imaging surface is TL, and the maximum imaging height of the imaging optical lens group is ImgH, which satisfies the following conditions: 2.50 < TD / f < 3.90; and 0.90 < TL / ImgH < 3.

50.

27. The camera optical lens assembly according to claim 22, characterized in that The distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, and the entrance pupil diameter of the imaging optical lens group is EPD, which satisfies the following conditions: 5.00 < TD / EPD < 8.

50.

28. The camera optical lens assembly according to claim 22, characterized in that The maximum value of the distance between all adjacent lenses on the optical axis in the imaging optical lens group is ATmax, and the focal length of the imaging optical lens group is f, which satisfies the following conditions: 0 < ATmax / f < 2.

50.

29. The camera optical lens assembly according to claim 22, characterized in that The maximum effective radius of the object side surface of the second lens is Y2R1, and the maximum effective radius of the image side surface of the fifth lens is Y5R2, which satisfies the following conditions: 0.70 < Y2R1 / Y5R2 < 8.

00.

30. The camera optical lens assembly according to claim 22, characterized in that The distance on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens is TD, the focal length of the imaging optical lens group is f, the focal length of the third lens is f3, the focal length of the fifth lens is f5, the combined focal length of the fourth lens and the fifth lens is f45, the distance on the optical axis between the third lens and the fourth lens is T34, the distance on the optical axis between the fifth lens and the sixth lens is T56, the radius of curvature of the object side surface of the second lens is R3, the radius of curvature of the image side surface of the second lens is R4, the distance on the optical axis from the object side surface of the first lens to the imaging surface is TL, and the maximum imaging height of the imaging optical lens group is ImgH, which satisfies the following conditions: 2.51 ≤ TD / f ≤ 3.47; -0.65 ≤ f / f5 ≤ -0.16; 6.48 ≤ TD / T56 ≤ 10.05; -0.36 ≤ f / f3 ≤ 0.04; 3.21 ≤ T56 / T34 ≤ 7.08; 0.71 ≤ f / f45 ≤ 0.92; 2.58 ≤ (R3 + R4) / (R3 - R4) ≤ 15.98; and The distance on the optical axis from the object side surface of the first lens to the imaging surface is TL, and the maximum imaging height of the imaging optical lens group is ImgH, which satisfies the following conditions: 2.33 ≤ TL / ImgH ≤ 3.20.

Images