Optical camera lens, image capturing device and electronic device

Abstract

The invention discloses an optical camera lens which comprises two lens groups. The two lens groups include six lenses. The two lens groups are sequentially a first lens group and a second lens group from the object side to the image side. The six lenses are sequentially the first lens to the sixth lens from the object side to the image side. The focal length of the optical pick-up lens is adjusted by adjusting the focal length through the change of the distance between the lens groups. The optical pick-up lens has a long focus end and a short focus end in a focal length adjustment process. The second lens group moves relative to the first lens group during the focal length adjustment process. At least one inflection point on at least one lens surface in the optical pick-up lens falls in the optical effective area in the focal length adjusting process. The second lens element has negative refractive power. When specific conditions are met, the optical camera lens can meet the requirements of small size, adjustable focal length, high imaging quality and easy assembly at the same time. The invention further discloses an image capturing device with the optical camera lens and an electronic device with the image capturing device.

Description

Technical Field

[0001] The present disclosure relates to an optical camera lens, an imaging device and an electronic device, and in particular to an optical camera lens and an imaging device suitable for an electronic device. Background Art

[0002] As semiconductor process technology becomes more advanced, the performance of electronic photosensitive elements has been improved, and pixels can reach smaller sizes. Therefore, optical lenses with high imaging quality have become an indispensable part.

[0003] As technology advances, the application scope of electronic devices equipped with optical lenses is becoming wider, and the requirements for optical lenses are becoming more diverse. Since it is difficult for existing optical lenses to strike a balance between requirements such as imaging quality, sensitivity, aperture size, volume or viewing angle, the present invention provides an optical lens to meet the requirements. Summary of the invention

[0004] The present disclosure provides an optical camera lens, an imaging device, and an electronic device. The optical camera lens comprises two lens groups arranged in sequence from the object side to the image side along the optical path, and the two lens groups comprise six lenses arranged in sequence from the object side to the image side along the optical path. When certain conditions are met, the optical camera lens provided by the present disclosure can simultaneously meet the requirements of small size, adjustable focal length, high imaging quality, and easy assembly.

[0005] The present disclosure provides an optical imaging lens, which includes two lens groups, and the two lens groups include six lenses. The two lens groups are, in order from the object side to the image side along the optical path, a first lens group and a second lens group. 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, 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. Preferably, a focal length adjustment process is performed by changing the distance between the two lens groups to adjust the focal length of the optical imaging lens. Preferably, the optical imaging lens has a long focal length end and a short focal length end during the focal length adjustment process. Preferably, the second lens group moves along the optical axis direction relative to the first lens group during the focal length adjustment process. Preferably, at least one inflection point on at least one surface of at least one lens in the optical imaging lens falls within the optical effective area of the at least one surface during the focal length adjustment process. Preferably, the first lens group includes the first lens, the second lens, and the third lens, and the second lens group includes the fourth lens, the fifth lens, and the sixth lens. Preferably, the second lens has a negative refractive power. The focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, the thickness of the sixth lens on the optical axis is CT6, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the distance between the fifth lens and the sixth lens on the optical axis is T56, which preferably satisfy the following conditions:

[0006] -12.0 < f2 / CT2 < -1.00; and

[0007] 1.6 < (CT4 + CT5 + CT6) / (T45 + T56) < 15.

[0008] The present disclosure further provides an optical imaging lens, which includes two lens groups, and the two lens groups include six lenses. The two lens groups are, in order from the object side to the image side along the optical path, a first lens group and a second lens group. 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. 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. Preferably, a focal length adjustment process is performed by changing the distance between the two lens groups to adjust the focal length of the optical imaging lens. Preferably, the optical imaging lens has a long focal length end and a short focal length end during the focal length adjustment process. Preferably, the second lens group moves along the optical axis direction relative to the first lens group during the focal length adjustment process. Preferably, at least one inflection point on at least one surface of at least one lens in the optical imaging lens falls within the optical effective area of at least one surface during the focal length adjustment process. Preferably, the first lens group includes the first lens, the second lens, and the third lens, and the second lens group includes the fourth lens, the fifth lens, and the sixth lens. Preferably, the first lens has a positive refractive power. Preferably, the second lens has a negative refractive power. Preferably, the object-side surface of the third lens is convex near the optical axis. The focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the thickness of the third lens on the optical axis is CT3, and the radius of curvature of the object-side surface of the third lens is R5, which preferably satisfies the following conditions:

[0009] -12.0 < f2 / CT2 < -1.00; and

[0010] 0 < R5 / CT3 < 12.0.

[0011] The present disclosure further provides an optical imaging lens, which includes two lens groups, and the two lens groups include six lenses. The two lens groups are, in order from the object side to the image side along the optical path, a first lens group and a second lens group. 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, 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. Preferably, a focal length adjustment process is performed by changing the distance between the two lens groups to adjust the focal length of the optical imaging lens. Preferably, the optical imaging lens has a long focal length end and a short focal length end during the focal length adjustment process. Preferably, the second lens group moves along the optical axis direction relative to the first lens group during the focal length adjustment process. Preferably, at least one inflection point on at least one surface of at least one lens in the optical imaging lens falls within the optical effective area of at least one surface during the focal length adjustment process. Preferably, the first lens group includes the first lens, the second lens, and the third lens, and the second lens group includes the fourth lens, the fifth lens, and the sixth lens. Preferably, the second lens has a negative refractive power. The focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the third lens is TG1, and the distance on the optical axis from the object-side surface of the fourth lens to the image-side surface of the sixth lens is TG2, and it preferably satisfies the following conditions:

[0012] -12.0 < f2 / CT2 < -1.00; and

[0013] 1.4 < TG1 / TG2 < 4.0.

[0014] The present disclosure provides an imaging device, which includes the foregoing optical imaging lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the optical imaging lens.

[0015] The present disclosure provides an electronic device, which includes at least two imaging devices, and the at least two imaging devices are both located on the same side of the electronic device. The at least two imaging devices include a first imaging device and a second imaging device. The first imaging device includes the foregoing optical imaging lens and an electronic photosensitive element, wherein the electronic photosensitive element of the first imaging device is disposed on the imaging surface of the optical imaging lens. The second imaging device includes an optical lens group and an electronic photosensitive element, wherein the electronic photosensitive element of the second imaging device is disposed on the imaging surface of the optical lens group. Preferably, half of the maximum viewing angle of the second imaging device falls within the range of 30 degrees to 60 degrees.

[0016] When f2 / CT2 satisfies the above conditions, the surface shape and refractive power of the second lens can be adjusted to correct aberrations.

[0017] When (CT4+CT5+CT6) / (T45+T56) satisfies the above conditions, the distribution of lenses in the second lens group can be adjusted to compress the volume.

[0018] When R5 / CT3 meets the above conditions, the surface shape of the third lens can be adjusted, which helps to compress the volume of the first lens group.

[0019] When TG1 / TG2 meets the above conditions, the distribution of the first lens group and the second lens group can be adjusted, which helps to compress the volume of the optical camera lens.

[0020] The above description of the contents of the present disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present disclosure, and to provide further explanation of the claims of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagrams showing an image capturing device according to a first embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0022] Figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the first embodiment at the telephoto end.

[0023] Figure 3 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the first embodiment at the short focal end.

[0024] Figure 4 Schematic diagrams showing an image capturing device according to a second embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0025] Figure 5 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the second embodiment at the telephoto end.

[0026] Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the second embodiment at the short focal end.

[0027] Figure 7 Schematic diagrams showing an imaging device according to a third embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0028] Figure 8 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the third embodiment at the telephoto end.

[0029] Fig. 9 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the third embodiment at the short focal end.

[0030] Fig.10 Schematic diagrams showing an image capturing device according to a fourth embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0031] Fig.11 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fourth embodiment at the telephoto end.

[0032] Fig.12 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fourth embodiment at the short focal end.

[0033] Fig.13 Schematic diagrams showing an imaging device according to a fifth embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0034] Fig.14 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fifth embodiment at the telephoto end.

[0035] Fig.15 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fifth embodiment at the short focal end.

[0036] Fig.16 Schematic diagrams showing an imaging device according to a sixth embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0037] Fig.17 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the sixth embodiment at the telephoto end.

[0038] Fig.18 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the sixth embodiment at the short focal end.

[0039] Fig.19 Schematic diagrams showing an imaging device according to a seventh embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0040] Fig. 20 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the seventh embodiment at the telephoto end.

[0041] Fig.21 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the seventh embodiment at the short focal end.

[0042] Fig. 22 Schematic diagrams showing an image capturing device according to an eighth embodiment of the present disclosure at a long focal length and a short focal length respectively.

[0043] Fig.23From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the eighth embodiment at the telephoto end.

[0044] Fig.24 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the eighth embodiment at the short focal end.

[0045] Fig.25 A schematic three-dimensional diagram of one side of an electronic device according to a ninth embodiment of the present disclosure is shown.

[0046] Fig.26 Draw Fig.25 A three-dimensional schematic diagram of the other side of the electronic device.

[0047] Fig. 27 Draw Fig.25 A cross-sectional schematic diagram of two imaging devices in an electronic device.

[0048] Fig.28 A three-dimensional schematic diagram of one side of an electronic device according to a tenth embodiment of the present disclosure is shown.

[0049] Fig.29 A schematic diagram illustrating an imaging device at a telephoto end according to a first embodiment of the present disclosure and parameters TG1, TG2, TG12L, TLL, Y11M, ImgHM and an inflection point of a first lens is shown.

[0050] Fig.30 A schematic diagram illustrating an imaging device at a short focal length and parameters TG12S, TLS, Y62M, and an inflection point of a first lens according to a first embodiment of the present disclosure is shown.

[0051] Fig.31 A schematic diagram is shown of an optically effective area of ​​a first lens having a non-circularly symmetric shape on the object-side surface of the first lens in one state of the optical camera lens according to an embodiment of the present disclosure.

[0052] Fig.32 A schematic diagram showing a configuration relationship of an optical path turning element in an optical camera lens according to the present disclosure is shown.

[0053] Fig.33 A schematic diagram showing another configuration relationship of an optical path turning element in an optical camera lens according to the present disclosure is shown.

[0054] Fig.34 A schematic diagram showing another configuration relationship of an optical path turning element in an optical camera lens according to the present disclosure is shown.

[0055] Fig.35 A schematic diagram showing a configuration relationship of two optical path turning elements in an optical camera lens according to the present disclosure is shown.

[0056]

Explanation of symbols

[0057] 1, 2, 3, 4, 5, 6, 7, 8, 100, 100a, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i, 100j, 100k, 100m, 100n, 100p: imaging device

[0058] 200, 300: Electronic devices

[0059] 201, 301: Flash module

[0060] 202: Display device

[0061] OA: Optical Axis

[0062] OA1: First optical axis

[0063] OA2: Second optical axis

[0064] OA3: Third optical axis

[0065] LF: Optical path turning element

[0066] LF1: First optical path turning element

[0067] LF2: Second optical path turning element

[0068] LG: Lens Group

[0069] DLG: Moving direction of the lens group

[0070] S1, S2, S3, S4: aperture

[0071] E1: First lens

[0072] E2: Second lens

[0073] E3: The third lens

[0074] E4: The fourth lens

[0075] E5: The fifth lens

[0076] E6: The sixth lens

[0077] E7: Filter element

[0078] IMG: Imaging surface

[0079] IS: Electronic photosensitive element

[0080] P: Inflection point

[0081] G1: The first lens group

[0082] G2: Second lens group

[0083] ImgHM: Maximum imaging height of the optical camera lens during focus adjustment

[0084] TG1: The distance on the optical axis from the object side surface of the first lens to the image side surface of the third lens

[0085] TG2: The distance on the optical axis from the object side surface of the fourth lens to the image side surface of the sixth lens

[0086] TG12L: The distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens when the optical camera lens is at the telephoto end

[0087] TG12S: The distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens when the optical camera lens is at the short focal length

[0088] TLL: The distance from the object side surface of the first lens to the imaging surface on the optical axis when the optical camera lens is at the telephoto end

[0089] TLS: The distance from the object side surface of the first lens to the imaging surface on the optical axis when the optical camera lens is at the short focal length.

[0090] Y11M: Maximum distance between the optically effective area of ​​the object side surface of the first lens and the optical axis during focus adjustment

[0091] Y62M: Maximum distance between the optically effective area of ​​the image-side surface of the sixth lens and the optical axis during focus adjustment DETAILED DESCRIPTION

[0092] The optical camera lens includes two lens groups, and the two lens groups include six lenses. The two lens groups are sequentially a first lens group and a second lens group along the optical path from the object side to the image side. 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 the six lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction. The optical camera lens disclosed in the present disclosure can achieve a balance between volume, focal length adjustment range, imaging quality, and ease of assembly through the configuration of the two lens groups and the six lenses.

[0093] In the optical camera lens disclosed in the present disclosure, a focal length adjustment process can be performed by changing the distance between two lens groups to adjust the focal length of the optical camera lens. On the other hand, the optical camera lens can change its internal state according to an object distance to perform a focal length adjustment process to adjust the focal length of the optical camera lens accordingly; thereby, the application scope of the optical camera lens can be expanded. Among them, the optical camera lens can have multiple states during the focal length adjustment process. The state when the optical camera lens has the longest focal length corresponds to the telephoto end of the optical camera lens, and the state when the optical camera lens has the shortest focal length corresponds to the short focal end of the optical camera lens. Please refer to Figure 1 , are schematic diagrams illustrating the optical camera lens in the imaging device according to the first embodiment of the present disclosure when it is at the telephoto end and the short focal end, wherein Figure 1 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Figure 1 The lower half of is a schematic diagram of the optical camera lens at the short focal end.

[0094] In the optical camera lens disclosed in the present disclosure, the second lens group moves along the optical axis relative to the first lens group during the focal length adjustment process; thereby, the complexity of the mechanism can be simplified. Wherein, when the focal length of the optical camera lens gradually shortens during the focal length adjustment process, the second lens group can move toward the image side along the optical axis relative to the first lens group; conversely, when the focal length of the optical camera lens gradually lengthens during the focal length adjustment process, the second lens group can move toward the object side along the optical axis relative to the first lens group; thereby, it helps to reduce the position change of the imaging surface during the focal length adjustment process to maintain the imaging quality. On the other hand, when the object distance gradually shortens, the second lens group can move toward the image side along the optical axis relative to the first lens group during the focal length adjustment process; conversely, when the object distance gradually lengthens, the second lens group can move toward the object side along the optical axis relative to the first lens group during the focal length adjustment process; thereby, it helps to reduce the position change of the imaging surface during the focal length adjustment process to maintain the imaging quality. The first lens group includes a first lens, a second lens and a third lens, thereby helping to improve the imaging quality of the optical camera lens. The second lens group includes a fourth lens, a fifth lens and a sixth lens, thereby helping to achieve a balance between volume, focal length adjustment range and imaging quality.

[0095] In the optical camera lens disclosed in the present disclosure, the lenses in a single lens group may not move relative to each other during the focal length adjustment process, thereby simplifying the complexity of the mechanism. For example, the first lens, the second lens, and the third lens in the first lens group may not move relative to each other during the focal length adjustment process.

[0096] In the optical camera lens disclosed in the present disclosure, at least one lens may be made of plastic material; thereby, it is helpful to reduce the volume, reduce the weight, improve the imaging quality and increase the mass production capability.

[0097] In the optical camera lens disclosed in the present disclosure, at least one inflection point on at least one surface of at least one lens may fall within the optical effective area of ​​the at least one surface during the focal length adjustment process; thereby, the degree of change of the lens surface can be increased, which helps to compress the lens volume and improve the imaging quality. Among them, at least one inflection point on at least one surface of at least one lens in the second lens group may fall within the optical effective area of ​​the at least one surface during the focal length adjustment process. Among them, at least one inflection point on the object side surface of the fourth lens may fall within the optical effective area of ​​the object side surface of the fourth lens during the focal length adjustment process. Please note that at least one surface of the at least one lens refers to at least one of the object side surface and the image side surface of the at least one lens. Please note that the size of the optical effective area of ​​any lens surface may be different in different states of the optical camera lens, that is, the size of the optical effective area may change during the focal length adjustment process. Please refer to Fig.29 and Fig.30 , is a schematic diagram showing the inflection point P of the image-side surface of the first lens E1 according to the first embodiment of the present disclosure. This inflection point P always falls within the optical effective area of ​​the image-side surface of the first lens when the optical effective area of ​​the image-side surface of the first lens changes. For the sake of convenience, only the states of the optical camera lens at the telephoto end and the short focal end are used as examples. In fact, the optical camera lens can also have other states with different focal lengths. Please note Fig.29 and Fig.30 The inflection point P of the image-side surface of the first lens E1 in the first embodiment of the present disclosure is only for illustrative purposes. In the first embodiment of the present disclosure and other embodiments, at least one inflection point of the object-side surface and the image-side surface of each lens may fall within its optically effective region during the focal length adjustment process.

[0098] In the optical camera lens disclosed in the present disclosure, during the focal length adjustment process in at least one state of the optical camera lens, the optically effective area of ​​at least one surface of at least one lens in the optical camera lens may present a non-circularly symmetrical shape; thereby, it helps to compress the volume of the optical camera lens to expand the scope of application. Wherein, during the focal length adjustment process in at least one state of the optical camera lens, the optically effective area of ​​at least one surface of at least one lens in the first lens group may present a non-circularly symmetrical shape. Wherein, during the focal length adjustment process in at least one state of the optical camera lens, the optically effective areas of each surface of the first lens, the second lens and the third lens may present a non-circularly symmetrical shape. Wherein, during the focal length adjustment process in at least one state of the optical camera lens, the optically effective area of ​​the image-side surface of the sixth lens may present a non-circularly symmetrical shape. Please refer to Fig.31, is a schematic diagram showing an optically effective area having a non-circularly symmetrical shape of the object-side surface of the first lens E1 in one state of the optical camera lens according to the first embodiment of the present disclosure. Fig.31 The optically effective area of ​​the non-circularly symmetrical shape of the object-side surface of the first lens E1 in the first embodiment of the present disclosure is only for illustrative purposes, and may be other types of non-circularly symmetrical shapes according to actual needs. In the first embodiment of the present disclosure and other embodiments, both the object-side surface and the image-side surface of each lens may have an optically effective area of ​​a non-circularly symmetrical shape.

[0099] The optical camera lens disclosed in the present disclosure may further include at least one optical path turning element, thereby adjusting the spatial configuration to reduce design restrictions. The at least one optical path turning element may be located on the object side of the first lens. The at least one optical path turning element may include at least one prism, thereby helping to improve the assembly qualification rate of the optical camera lens.

[0100] The first lens group may have positive refractive power, thereby helping to compress the volume of the optical camera lens at the object side.

[0101] The second lens group may have negative refractive power, thereby helping to reduce aberrations generated during the focus adjustment process.

[0102] The first lens may have positive refractive power, thereby helping to compress the volume of the optical camera lens at the object side. The object side surface of the first lens may be convex near the optical axis, thereby helping to compress the outer diameter of the optical camera lens at the object side.

[0103] The second lens has negative refractive power, which helps to balance aberrations such as spherical aberration generated by the compressed volume. The object side surface of the second lens can be convex near the optical axis, which can adjust the direction of light travel and help compress the outer diameter of the optical camera lens at the object side. The image side surface of the second lens can be concave near the optical axis, which helps to correct aberrations such as astigmatism.

[0104] The third lens may have positive refractive power, thereby helping to compress the volume of the optical camera lens and reduce sensitivity. The object side surface of the third lens may be convex at the near optical axis, thereby adjusting the direction of light travel, helping to compress the outer diameter of the first lens group. The image side surface of the third lens may be convex at the near optical axis, thereby adjusting the direction of light travel, helping to reduce the incident angle of light on the second lens group.

[0105] The object side surface of the fourth lens may be concave near the optical axis; thereby, the surface shape and refractive power of the fourth lens may be adjusted, which helps to maintain the imaging quality during the focal length adjustment process.

[0106] The focal length of the second lens is f2, and the thickness of the second lens on the optical axis is CT2, which satisfies the following condition: -12.0 < f2 / CT2 < -1.00. Thereby, the surface shape and refractive power of the second lens can be adjusted to correct aberrations. Among them, the following condition can also be satisfied: -10.0 < f2 / CT2 < -2.00. Among them, the following condition can also be satisfied: -8.00 < f2 / CT2 < -3.00. Among them, the following condition can also be satisfied: -6.02 ≤ f2 / CT2 ≤ -4.10.

[0107] The thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, and the thickness of the sixth lens on the optical axis is CT6. The distance between the fourth lens and the fifth lens on the optical axis is T45, and the distance between the fifth lens and the sixth lens on the optical axis is T56, which can satisfy the following condition: 1.6 < (CT4 + CT5 + CT6) / (T45 + T56) < 15. Thereby, the lens distribution in the second lens group can be adjusted to compress the volume. Among them, the following condition can also be satisfied: 1.9 < (CT4 + CT5 + CT6) / (T45 + T56) < 13. Among them, the following condition can also be satisfied: 2.3 < (CT4 + CT5 + CT6) / (T45 + T56) < 11. Among them, the following condition can also be satisfied: 3.2 < (CT4 + CT5 + CT6) / (T45 + T56) < 9.0. Among them, the following condition can also be satisfied: 4.0 < (CT4 + CT5 + CT6) / (T45 + T56) < 7.0. Among them, the following condition can also be satisfied: 4.51 ≤ (CT4 + CT5 + CT6) / (T45 + T56) ≤ 5.76.

[0108] The radius of curvature of the object side surface of the third lens is R5, and the thickness of the third lens on the optical axis is CT3, which can satisfy the following condition: 0 < R5 / CT3 < 12.0. Thereby, the surface shape of the third lens can be adjusted, which helps to compress the volume of the first lens group. Among them, the following condition can also be satisfied: 1.00 < R5 / CT3 < 9.50. Among them, the following condition can also be satisfied: 1.65 < R5 / CT3 < 7.50. Among them, the following condition can also be satisfied: 2.25 < R5 / CT3 < 5.60. Among them, the following condition can also be satisfied: 2.39 ≤ R5 / CT3 ≤ 4.53.

[0109] The distance from the object side surface of the first lens to the image side surface of the third lens on the optical axis is TG1, and the distance from the object side surface of the fourth lens to the image side surface of the sixth lens on the optical axis is TG2, which can satisfy the following conditions: 1.4 < TG1 / TG2 < 4.0. Thereby, the distribution of the first lens group and the second lens group can be adjusted, which helps to compress the volume of the optical imaging lens. Among them, the following conditions can also be satisfied: 1.6 < TG1 / TG2 < 3.0. Among them, the following conditions can also be satisfied: 1.85 ≤ TG1 / TG2 ≤ 2.39. Please refer to Fig.29 , which is a schematic diagram showing the parameters TG1 and TG2 in the first embodiment of the present disclosure. In some cases, TG1 can also be regarded as the distance of the first lens group on the optical axis, and TG2 can also be regarded as the distance of the second lens group on the optical axis.

[0110] The thickness of the first lens on the optical axis is CT1, the thickness of the second lens on the optical axis is CT2, the thickness of the third lens on the optical axis is CT3, 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 satisfy the following conditions: 0.50 < (CT1 + CT2 + CT3) / (T12 + T23) < 6.8. Thereby, the lens distribution in the first lens group can be adjusted to compress the volume. Among them, the following conditions can also be satisfied: 1.1 < (CT1 + CT2 + CT3) / (T12 + T23) < 5.6. Among them, the following conditions can also be satisfied: 1.7 < (CT1 + CT2 + CT3) / (T12 + T23) < 4.4. Among them, the following conditions can also be satisfied: 2.0 < (CT1 + CT2 + CT3) / (T12 + T23) < 3.8.

[0111] The radius of curvature of the object side surface of the third lens is R5, the radius of curvature of the image side surface of the third lens is R6, and the thickness of the third lens on the optical axis is CT3, which can satisfy the following conditions: 1.0 < (R5 - R6) / CT3 < 10. Thereby, the surface shape of the third lens can be adjusted, which helps to compress the volume of the first lens group. Among them, the following conditions can also be satisfied: 4.2 < (R5 - R6) / CT3 < 7.8.

[0112] The focal length of the first lens is f1, and the focal length of the second lens is f2, which can satisfy the following conditions: -2.3 < f1 / f2 < -0.95. Thereby, the first lens and the second lens can cooperate with each other to correct aberrations such as spherical aberration.

[0113] During the focal length adjustment process, the maximum distance between the optical effective area of the object side surface of the first lens and the optical axis is Y11M, and the maximum distance between the optical effective area of the image side surface of the sixth lens and the optical axis is Y62M, which can satisfy the following conditions: 0.50 < Y11M / Y62M < 2.0. Thereby, the traveling direction of light can be adjusted, which helps to achieve a balance among the viewing angle, volume distribution, focal length adjustment range, and imaging quality. Among them, the following conditions can also be satisfied: 0.55 < Y11M / Y62M < 1.8. Among them, the following conditions can also be satisfied: 0.65 < Y11M / Y62M < 1.6. In some cases, the optical effective area of the lens surface may change during the focal length adjustment process, and the distance between the optical effective area of the lens surface and the optical axis will change correspondingly. Therefore, the maximum distance between the optical effective area of each lens surface and the optical axis may appear in different states of the optical imaging lens. Please refer to Fig.29 and Fig.31 , which is a schematic diagram showing the parameter Y11M in accordance with the first embodiment of the present disclosure, where Fig.29 the optical imaging lens is at the telephoto end, and Y11M appears when the optical imaging lens is at the telephoto end. Please refer to Fig.30 , which is a schematic diagram showing the parameter Y62M in accordance with the first embodiment of the present disclosure, where Fig.30 the optical imaging lens is at the wide-angle end, and Y62M appears when the optical imaging lens is at the wide-angle end.

[0114] The radius of curvature of the object side surface of the second lens is R3, and the thickness of the second lens on the optical axis is CT2, which can satisfy the following conditions: 1.0 < R3 / CT2 < 10. The surface shape of the second lens can be adjusted, which helps to compress the outer diameter of the first lens group. Among them, the following conditions can also be satisfied: 2.0 < R3 / CT2 < 8.0. Among them, the following conditions can also be satisfied: 3.0 < R3 / CT2 < 6.0.

[0115] The focal length of the optical imaging lens at the telephoto end is fL, and the focal length of the optical imaging lens at the wide-angle end is fS, which can satisfy the following conditions: 1.20 < fL / fS < 2.30. Thereby, the volume and imaging quality can be taken into account during the focal length adjustment. Among them, the following conditions can also be satisfied: 1.35 < fL / fS < 1.70.

[0116] The radius of curvature of the image side surface of the second lens is R4, and the thickness of the second lens on the optical axis is CT2, which can satisfy the following conditions: 0 < R4 / CT2 < 3.7. Thereby, the surface shape of the second lens can be adjusted, which helps to compress the volume and correct the aberration. Among them, the following conditions can also be satisfied: 1.0 < R4 / CT2 < 3.3.

[0117] The focal length of the third lens is f3, and the thickness of the third lens on the optical axis is CT3, which can satisfy the following conditions: 1.0 < f3 / CT3 < 6.5. Thereby, the surface shape and refractive power of the third lens can be adjusted, which helps to compress the volume of the first lens group. Among them, the following conditions can also be satisfied: 2.1 < f3 / CT3 < 4.9.

[0118] The radius of curvature of the image-side surface of the third lens is R6, and the radius of curvature of the object-side surface of the fourth lens is R7, which can satisfy the following conditions: 0.65 < R6 / R7 < 3.0. Thereby, the surface shapes of the third lens and the fourth lens can be matched with each other, which helps to correct aberration.

[0119] When the optical imaging lens is at the telephoto end, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TLL, and when the optical imaging lens is at the wide-angle end, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TLS, which can satisfy the following conditions: |1 - TLL / TLS| < 1.0E-2. Thereby, the position change of the imaging surface during the focal length adjustment can be reduced, which helps to simplify the complexity of the mechanism. Among them, the following conditions can also be satisfied: |1 - TLL / TLS| < 5.0E-3. Among them, the following conditions can also be satisfied: |1 - TLL / TLS| < 2.5E-3. Among them, the following conditions can also be satisfied: |1 - TLL / TLS| < 1.2E-3. Please refer to Fig.29 and Fig.30 , which are schematic diagrams respectively showing the parameters TLL and TLS in the first embodiment according to the present disclosure.

[0120] The combined focal length of the first lens, the second lens and the third lens is fG1, and the combined focal length of the fourth lens, the fifth lens and the sixth lens is fG2, which can satisfy the following conditions: -1.50 < fG2 / fG1 < -1.00. Thereby, the first lens group and the second lens group can be matched with each other, which helps to expand the focal length adjustment range and take into account the imaging quality. Among them, the following conditions can also be satisfied: -1.35 < fG2 / fG1 < -1.10. In some cases, fG1 can also be regarded as the focal length of the first lens group, and fG2 can also be regarded as the focal length of the second lens group. The focal length of any lens group is the combined focal length of all the lenses in the lens group.

[0121] During the focal length adjustment process, the maximum distance between the optical effective area of the object side surface of the first lens and the optical axis is Y11M. During the focal length adjustment process, the maximum imaging height of the optical imaging lens is ImgHM (which can be half of the total diagonal length of the effective sensing area of the electronic photosensitive element). It can satisfy the following conditions: 0.70 < Y11M / ImgHM < 1.4. Thereby, the traveling direction of light can be adjusted, which helps to compress the outer diameter and increase the imaging surface. In some cases, the imaging height of the optical imaging lens may change during the focal length adjustment process, and ImgHM is the maximum value within the range of the imaging height change of the optical imaging lens. Or, in other cases, ImgHM can remain the same during the focal length adjustment process, that is, it does not change during the focal length adjustment process. Please refer to Fig.29 , which is a schematic diagram showing the parameters Y11M and ImgHM in the first embodiment of the present disclosure, where ImgHM in the first embodiment remains the same during the focal length adjustment process.

[0122] The curvature radius of the object side surface of the third lens is R5, the curvature radius of the image side surface of the third lens is R6, and the thickness of the third lens on the optical axis is CT3. It can satisfy the following conditions: |R5 + R6| / CT3 < 2.3. Thereby, the surface shape of the third lens can be adjusted, which helps to compress the volume of the first lens group. Among them, the following conditions can also be satisfied: |R5 + R6| / CT3 < 1.7.

[0123] The Abbe number of the first lens is V1, the Abbe number of the second lens is V2, and the Abbe number of the third lens is V3. It can satisfy the following conditions: 4.0 < (V1 + V3) / V2 < 6.0. Thereby, the distribution of lens materials can be adjusted to correct chromatic aberration.

[0124] Half of the maximum viewing angle of the optical imaging lens at the telephoto end is HFOVL. It can satisfy the following conditions: 9.0 [degrees] < HFOVL < 16.0 [degrees]. Thereby, the viewing angle at the telephoto end can be adjusted to match the application.

[0125] The F-number of the optical imaging lens at the telephoto end is FnoL. It can satisfy the following conditions: 1.6 < FnoL < 2.2. Thereby, a balance can be achieved between the depth of field and the illuminance at the telephoto end.

[0126] The curvature radius of the object side surface of the first lens is R1, and the focal length of the first lens is f1. It can satisfy the following conditions: 0.50 < R1 / f1 < 5.0. Thereby, the surface shape and refractive power of the first lens can be adjusted, which helps to compress the volume of the object side end of the optical imaging lens.

[0127] The combined focal length of the fourth lens, the fifth lens, and the sixth lens is fG2. When the optical imaging lens is at the telephoto end, the distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens is TG12L. When the optical imaging lens is at the wide-angle end, the distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens is TG12S, and the following conditions can be satisfied: 1.0 < fG2 / (TG12L - TG12S) < 6.0. Thereby, the refractive power and the movement mode of the lens group can be adjusted, which helps to balance the imaging quality during the focal length adjustment process and reduce the position change of the imaging surface. Among them, the following conditions can also be satisfied: 2.0 < fG2 / (TG12L - TG12S) < 5.0. Among them, the following conditions can also be satisfied: 3.0 < fG2 / (TG12L - TG12S) < 3.9. Please refer to Fig.29 and Fig.30 , which are schematic diagrams respectively showing the parameters TG12L and TG12S in accordance with the first embodiment of the present disclosure. In some cases, TG12L can also be regarded as the distance on the optical axis between the first lens group and the second lens group when the optical imaging lens is at the telephoto end, and TG12S can also be regarded as the distance on the optical axis between the first lens group and the second lens group when the optical imaging lens is at the wide-angle end.

[0128] Each technical feature in the optical imaging lens disclosed in the above present disclosure can be combined and configured to achieve the corresponding effects.

[0129] In the optical imaging lens disclosed in the present disclosure, the material of the lens can be glass or plastic. If the material of the lens is glass, the degree of freedom of the refractive power configuration of the optical imaging lens can be increased, and the influence of the external environmental temperature change on imaging can be reduced, and the glass lens can be made by techniques such as grinding or molding. If the lens material is plastic, the production cost can be effectively reduced. In addition, a spherical surface or an aspherical surface (ASP) can be provided on the lens surface. Among them, the spherical lens can reduce the manufacturing difficulty. If an aspherical surface is provided on the lens surface, more control variables can be obtained thereby to eliminate aberration, reduce the number of lenses, and effectively reduce the total length of the optical imaging lens disclosed in the present disclosure. Further, the aspherical surface can be made by methods such as plastic injection molding or molding of glass lenses.

[0130] In the optical imaging lens disclosed in the present disclosure, if the lens surface is an aspherical surface, it means that all or a part of the optically effective area of the lens surface is an aspherical surface.

[0131] In the optical camera lens disclosed in the present disclosure, additives can be selectively added to any (or more) lens materials to produce light absorption or light interference effects to change the lens's transmittance for light in a specific wavelength band, thereby reducing stray light and color deviation. For example: the additive can have the function of filtering out light in the 600-nanometer to 800-nanometer wavelength band in the system to help reduce excess red light or infrared light; or it can filter out light in the 350-nanometer to 450-nanometer wavelength band to reduce excess blue light or ultraviolet light. Therefore, the additive can prevent light in a specific wavelength band from interfering with imaging. In addition, the additive can be evenly mixed in a plastic material and made into a lens using injection molding technology. In addition, the additive can also be configured as a coating on the surface of the lens to provide the above-mentioned effects.

[0132] In the optical camera lens disclosed in the present disclosure, if the lens surface is convex and the position of the convex surface is not defined, it means that the convex surface may be located at the near optical axis of the lens surface; if the lens surface is concave and the position of the concave surface is not defined, it means that the concave surface may be located at the near optical axis of the lens surface. If the refractive power or focal length of the lens does not define its regional position, 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.

[0133] In the optical camera lens disclosed in the present invention, the inflection point of the lens surface refers to the intersection point where the curvature of the lens surface changes from positive to negative.

[0134] In the optical camera lens disclosed in the present disclosure, the imaging surface of the optical camera lens 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 different electronic photosensitive elements corresponding to the optical camera lens.

[0135] In the optical camera lens disclosed in the present disclosure, one or more imaging correction elements (field flattening elements, etc.) can be selectively arranged between the lens closest to the imaging surface on the imaging optical path and the imaging surface to achieve the effect of correcting the image (image bending, etc.). The optical properties of the imaging correction element, such as curvature, thickness, refractive index, position, surface type (convex or concave, spherical or aspherical, diffractive surface and Fresnel surface, etc.), can be adjusted according to the requirements of the imaging device. Generally speaking, the preferred imaging correction element configuration is to arrange a thin plano-concave element with a concave surface toward the object side close to the imaging surface.

[0136] In the optical camera lens disclosed in the present disclosure, at least one element with the function of turning the optical path can be selectively arranged between the object and the imaging surface on the imaging optical path to provide the optical camera lens with a more flexible spatial configuration, so that the electronic device can be made thinner and lighter without being restricted by the total optical length of the optical camera lens. The at least one optical path turning element can include at least one prism or at least one reflector. The prism surface or the reflector surface can be a plane, a spherical surface, an aspherical surface or a free-form surface, etc., but the present disclosure is not limited thereto. The at least one optical path turning element can be arranged on the object side of the first lens. For further explanation, please refer to Fig.32 and Fig.33 ,in Fig.32 is a schematic diagram showing a configuration relationship of an optical path turning element in an optical camera lens according to the present disclosure, and Fig.33 FIG. 2 is a schematic diagram showing another configuration relationship of an optical path turning element in an optical camera lens according to the present disclosure. Fig.32 and Fig.33 As shown, the optical camera lens can be arranged along an optical path from a subject (not shown) to an imaging surface IMG, and has a first optical axis OA1, an optical path turning element LF and a second optical axis OA2 in sequence, wherein the optical path turning element LF can be as shown in FIG. Fig.32 The prism shown is disposed between the object and the lens group LG of the optical camera lens, or Fig.33 The figure shows a reflector disposed between the object and the lens group LG of the optical camera lens. Fig.34 , is a schematic diagram showing another configuration relationship of an optical path turning element in an optical camera lens according to the present disclosure. Fig.34 As shown, the optical camera lens can be arranged along the optical path from the object (not shown) to the imaging surface IMG, and has a first optical axis OA1, an optical path turning element LF and a second optical axis OA2 in sequence, wherein the optical path turning element LF can be arranged between the lens group LG of the optical camera lens and the imaging surface IMG. Fig.35 , is a schematic diagram showing a configuration relationship of two optical path turning elements in an optical camera lens according to the present disclosure. Fig.35 As shown, the optical camera lens can also be arranged along an optical path from a photographed object (not shown) to an imaging surface IMG, and sequentially 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, wherein the first optical path turning element LF1 is arranged between the photographed object and the lens group LG of the optical camera lens, the second optical path turning element LF2 is arranged between the lens group LG of the optical camera lens and the imaging surface IMG, and the traveling direction of the light on the first optical axis OA1 can be as follows: Fig.35 The direction shown is the same as the traveling direction of the light along the third optical axis OA3. Fig.34 The optical path turning element LF, Fig.35 The first optical path turning element LF1 and the second optical path turning element LF2 are shown as prisms, but they can also be changed to reflectors, and the present disclosure is not limited to this. In addition, the optical camera lens can also selectively configure more than three optical path turning elements, and the present disclosure is not limited to the type, quantity and position of the optical path turning elements disclosed in the drawings.

[0137] In the optical camera lens disclosed in the present disclosure, at least one aperture stop may be provided, which may be located before the first lens, between each lens, or after the last lens. The aperture stop may be a glare stop or a field stop, etc., which may be used to reduce stray light and help improve image quality.

[0138] In the optical camera lens disclosed in the present disclosure, the aperture can be configured as a front aperture or a center aperture. The front aperture means that the aperture is set between the object and the first lens, and the center aperture means that the aperture is set between the first lens and the imaging surface. If the aperture is a front aperture, the exit pupil can be at a longer distance from the imaging surface, giving it a telecentric effect and increasing the efficiency of the CCD or CMOS of the electronic photosensitive element in receiving the image; if it is a center aperture, it helps to expand the field of view of the optical camera lens.

[0139] The present disclosure may appropriately set a variable aperture element, which may be a mechanical component or a light control element, which can control the size and shape of the aperture by electricity or electrical signals. The mechanical component may include movable parts such as a blade set and a shielding plate; the light control element may include shielding materials such as a filter element, an electrochromic material, and a liquid crystal layer. The variable aperture element can enhance the image adjustment capability by controlling the amount of light entering the image or the exposure time. In addition, the variable aperture element may also be the aperture of the present disclosure, which can adjust the image quality, such as the depth of field or the exposure speed, by changing the aperture value.

[0140] The present disclosure may appropriately place one or more optical elements to limit the form of light passing through the optical camera lens. The optical element may be a filter, a polarizer, etc., but the present disclosure is not limited thereto. In addition, the optical element may be a single-piece element, a composite component, or presented in the form of a film, etc., but the present disclosure is not limited thereto. The optical element may be placed at the object end, the image end, or between the lenses of the optical camera lens to control the passage of a specific form of light, thereby meeting the application requirements.

[0141] The optical camera lens disclosed in the present disclosure may include at least one optical lens, optical element or carrier, at least one surface of which has a low-reflection layer, and the low-reflection layer can effectively reduce the stray light generated by the reflection of light at the interface. The low-reflection layer can be arranged on the non-effective area of ​​the object side surface or the image side surface of the optical lens, or the connecting surface between the object side surface and the image side surface; the optical element can be a shading element, an annular spacer element, a lens barrel element, a flat glass (Cover glass), a blue glass (Blue glass), a filter element (Filter, Color filter), an optical path turning element, a prism or a mirror, etc.; the carrier can be a lens assembly lens mount, a micro lens (Micro lens) arranged on a photosensitive element, the periphery of a photosensitive element substrate, or a glass sheet used to protect a photosensitive element, etc.

[0142] The photographic system lens disclosed in the present disclosure may also include a shading element. The opening of the shading element may be non-circular, and the non-circular opening may have effective radii of different sizes in different directions perpendicular to the optical axis. In this way, it can be matched with a non-circular lens or aperture, thereby effectively saving space, and can fully utilize the light passing through the non-circular lens or aperture, which helps to reduce stray light. Among them, the inner hole periphery of the shading element may contain a wavy or sawtooth structure.

[0143] In the optical camera lens disclosed in the present invention, the object side and the image side are determined according to the direction of the optical axis, and the data on the optical axis are calculated along the optical axis. If the optical axis is turned by an optical path turning element or the like, the data on the optical axis are also calculated along the optical axis.

[0144] According to the above implementation modes, specific embodiments are proposed below and described in detail with reference to the accompanying drawings.

[0145] <First Embodiment>

[0146] Please refer to Figures 1 to 3 ,in Figure 1 Schematic diagrams showing the image capturing device according to the first embodiment of the present disclosure at a long focal end and a short focal end, Figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the first embodiment at the telephoto end, and Figure 3 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the first embodiment at the short focal end. Figure 1 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Figure 1 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Figure 1It can be seen that the imaging device 1 includes an optical camera lens (not labeled) and an electronic photosensitive element IS. The optical camera lens includes an optical path turning element, an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, an aperture S4, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes the first lens E1, the second lens E2 and the third lens E3, and the second lens group G2 includes the fourth lens E4, the fifth lens E5 and the sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0147] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Figure 1 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Figure 1 The telephoto end shown in the upper part and Figure 1 The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0148] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0149] The light path turning element is made of glass and is a prism with a light path turning function. For a description of the light path turning element, please refer to the above Figure 32 to Figure 35 The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Figure 1 The light path turning elements and their deflection effects on the light path are omitted.

[0150] The first lens E1 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 at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the first lens E1 both present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0151] The second lens E2 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. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 both present a non-circularly symmetrical shape during the focal length adjustment process.

[0152] The third lens E3 has positive refractive power and is made of glass. 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 at least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0153] The fourth lens E4 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0154] 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. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0155] The sixth lens 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. At least one inflection point on its object-side surface falls within the optical effective area of ​​the object-side surface during the focal length adjustment process, and at least one inflection point on its image-side surface falls within the optical effective area of ​​the image-side surface during the focal length adjustment process. In addition, the optical effective area of ​​the image-side surface of the sixth lens E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

[0156] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical camera lens.

[0157] The curve equations of the aspheric surfaces of the above lenses are expressed as follows:

[0158]

[0159] X: displacement parallel to the optical axis from the intersection of the aspheric surface and the optical axis to the point on the aspheric surface at a distance Y from the optical axis;

[0160] Y: the vertical distance between the point on the aspheric curve and the optical axis;

[0161] R: radius of curvature;

[0162] k: cone coefficient; and

[0163] Ai: i-th order aspheric coefficient.

[0164] The focal length of the optical camera lens is f, the aperture value of the optical camera lens is Fno, and half of the maximum viewing angle in the optical camera lens is HFOV.

[0165] When the optical camera lens is in different states through the focal length adjustment process, the values ​​of the above optical parameters may also be different. Specifically, the focal length of the optical camera lens at the telephoto end is fL, the focal length of the optical camera lens at the short focal end is fS, the aperture value of the optical camera lens at the telephoto end is FnoL, the aperture value of the optical camera lens at the short focal end is FnoS, half of the maximum angle of view of the optical camera lens at the telephoto end is HFOVL, and half of the maximum angle of view of the optical camera lens at the short focal end is HFOVS, which satisfies the following conditions: fL = 14.89 [mm], fS = 9.88 [mm]; FnoL = 1.95; FnoS = 1.97; HFOVL = 13.5 [degrees]; and HFOVS = 12.6 [degrees].

[0166] In this embodiment, D0 is the distance between the object and the optical path turning element on the optical axis, which can also be understood as the object distance of the object, D1 is the distance between the aperture S2 and the object side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image side surface of the sixth lens E6 and the filter element E7 on the optical axis. When the optical camera lens is at the telephoto end and the short focal end through the focal length adjustment process, the values ​​of D0 to D2 may be different. When the optical camera lens is at the telephoto end, it satisfies the following conditions: D0 = ∞ (infinity); D1 = 1.866 [mm]; and D2 = 5.000 [mm]. When the optical camera lens is at the short focal end, it satisfies the following conditions: D0 = 42.050 [mm]; D1 = 4.866 [mm]; and D2 = 2.000 [mm].

[0167] The combined focal length of the first lens E1, the second lens E2 and the third lens E3 is fG1, and the combined focal length of the fourth lens E4, the fifth lens E5 and the sixth lens E6 is fG2, which satisfy the following conditions: fG1 = 8.68 [mm]; and fG2 = -10.16 [mm]. In this embodiment, fG1 can also be regarded as the focal length of the first lens group G1, and fG2 can also be regarded as the focal length of the second lens group G2.

[0168] The Abbe number of the first lens E1 is V1, the Abbe number of the second lens E2 is V2, and the Abbe number of the third lens E3 is V3, which satisfies the following condition: (V1+V3) / V2=5.22.

[0169] The thickness of the first lens E1 on the optical axis is CT1, the thickness of the second lens E2 on the optical axis is CT2, the thickness of the third lens E3 on the optical axis is CT3, the spacing distance between the first lens E1 and the second lens E2 on the optical axis is T12, and the spacing distance between the second lens E2 and the third lens E3 on the optical axis is T23, which satisfies the following condition: (CT1+CT2+CT3) / (T12+T23)=2.75. In this embodiment, the spacing distance between two adjacent lenses on the optical axis refers to the distance between two adjacent mirror surfaces of the two adjacent lenses on the optical axis.

[0170] The thickness of the fourth lens E4 on the optical axis is CT4, the thickness of the fifth lens E5 on the optical axis is CT5, the thickness of the sixth lens E6 on the optical axis is CT6, the interval between the fourth lens E4 and the fifth lens E5 on the optical axis is T45, and the interval between the fifth lens E5 and the sixth lens E6 on the optical axis is T56, which satisfies the following condition: (CT4+CT5+CT6) / (T45+T56)=4.51.

[0171] When the optical camera lens is at the telephoto end, the distance from the object side surface of the first lens E1 to the imaging surface IMG on the optical axis is TLL, and when the optical camera lens is at the short focal length, the distance from the object side surface of the first lens E1 to the imaging surface IMG on the optical axis is TLS, which satisfies the following condition: |1-TLL / TLS|=0.00E+00.

[0172] The distance on the optical axis from the object side surface of the first lens E1 to the image side surface of the third lens E3 is TG1, and the distance on the optical axis from the object side surface of the fourth lens E4 to the image side surface of the sixth lens E6 is TG2, which satisfies the following condition: TG1 / TG2=2.10. In this embodiment, TG1 can also be regarded as the distance on the optical axis of the first lens group G1, and TG2 can also be regarded as the distance on the optical axis of the second lens group G2.

[0173] The curvature radius of the object-side surface of the third lens E3 is R5, the curvature radius of the image-side surface of the third lens E3 is R6, and the thickness of the third lens E3 on the optical axis is CT3, which satisfies the following condition: (R5-R6) / CT3=6.14.

[0174] The curvature radius of the object-side surface of the third lens E3 is R5, the curvature radius of the image-side surface of the third lens E3 is R6, and the thickness of the third lens E3 on the optical axis is CT3, which satisfies the following condition: |R5+R6| / CT3=0.46.

[0175] The radius of curvature of the object-side surface of the first lens E1 is R1, and the focal length of the first lens E1 is f1, which satisfies the following condition: R1 / f1=0.62.

[0176] The radius of curvature of the object-side surface of the second lens E2 is R3, and the thickness of the second lens E2 on the optical axis is CT2, which satisfies the following condition: R3 / CT2=4.78.

[0177] The curvature radius of the image-side surface of the second lens E2 is R4, and the thickness of the second lens E2 on the optical axis is CT2, which satisfies the following condition: R4 / CT2=1.79.

[0178] The radius of curvature of the object-side surface of the third lens E3 is R5, and the thickness of the third lens E3 on the optical axis is CT3, which satisfies the following condition: R5 / CT3=2.84.

[0179] The radius of curvature of the image-side surface of the third lens E3 is R6, and the radius of curvature of the object-side surface of the fourth lens E4 is R7, which satisfy the following condition: R6 / R7=1.81.

[0180] The focal length of the first lens E1 is f1, and the focal length of the second lens E2 is f2, which satisfy the following condition: f1 / f2=-1.74.

[0181] The focal length of the second lens E2 is f2, and the thickness of the second lens E2 on the optical axis is CT2, which satisfies the following condition: f2 / CT2=-5.11.

[0182] The focal length of the third lens E3 is f3, and the thickness of the third lens E3 on the optical axis is CT3, which satisfies the following condition: f3 / CT3=2.76.

[0183] The combined focal length of the fourth lens E4, the fifth lens E5 and the sixth lens E6 is fG2, the distance on the optical axis from the image side surface of the third lens E3 to the object side surface of the fourth lens E4 when the optical camera lens is at the telephoto end is TG12L, and the distance on the optical axis from the image side surface of the third lens E3 to the object side surface of the fourth lens E4 when the optical camera lens is at the short focal end is TG12S, which satisfies the following condition: fG2 / (TG12L-TG12S)=3.39. In this embodiment, TG12L can also be regarded as the distance on the optical axis between the first lens group G1 and the second lens group G2 when the optical camera lens is at the telephoto end, and TG12S can also be regarded as the distance on the optical axis between the first lens group G1 and the second lens group G2 when the optical camera lens is at the short focal end.

[0184] The combined focal length of the first lens E1, the second lens E2 and the third lens E3 is fG1, and the combined focal length of the fourth lens E4, the fifth lens E5 and the sixth lens E6 is fG2, which satisfies the following condition: fG2 / fG1=-1.17.

[0185] The focal length of the optical camera lens at the telephoto end is fL, and the focal length of the optical camera lens at the short focal end is fS, which satisfies the following condition: fL / fS=1.51.

[0186] During the focal length adjustment process, the maximum distance between the optical effective area of ​​the object side surface of the first lens E1 and the optical axis is Y11M, and the maximum imaging height of the optical camera lens during the focal length adjustment process is ImgHM, which satisfies the following condition: Y11M / ImgHM=1.07.

[0187] During the focal length adjustment process, the maximum distance between the optically effective area of ​​the object-side surface of the first lens E1 and the optical axis is Y11M, and the maximum distance between the optically effective area of ​​the image-side surface of the sixth lens E6 and the optical axis is Y62M, which satisfies the following condition: Y11M / Y62M=1.47.

[0188] Please refer to Table 1A to Table 1C below.

[0189]

[0190]

[0191] Table 1A shows detailed structural data of the first embodiment, wherein the units of the radius of curvature, thickness and focal length are in millimeters (mm), and surfaces 0 to 21 represent surfaces from the object side to the image side along the optical axis in sequence.

[0192]

[0193] Table 1B contains data of three states of the optical camera lens according to multiple states of different focusing conditions. In detail, the present embodiment also discloses adjusting the focal length of the optical camera lens to an intermediate state between the telephoto end and the short focal end and the corresponding values ​​of some optical parameters. It should be understood that only three states such as the telephoto end, the short focal end and the intermediate state between the two are disclosed in the present embodiment, but the present disclosure is not limited to the disclosed states, and the optical camera lens of the present embodiment may also have various states with a focal length between the short focal end and the telephoto end in addition to the short focal end, the telephoto end and the intermediate state. In addition, the object distance (D0) of Table 1B is only an example, and the present disclosure is not limited to this. It can correspond to the focusing state of various object distances, such as the object distance at the short focal end may also be infinite.

[0194] As can be seen from Table 1B, the optical camera lens performs a focal length adjustment process according to the change of the object distance, and the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Specifically, when the object distance D0 changes from infinity to 300.000 mm, the optical camera lens changes from the telephoto end to the intermediate state, the distance on the optical axis from the first lens group G1 to the second lens group G2 increases from 1.866 mm to 2.243 mm, and the distance on the optical axis from the second lens group G2 to the filter element E7 decreases from 5.000 mm to 4.623 mm. When the object distance D0 changes from 300.000 mm to 42.050 mm, the optical camera lens changes from the middle state to the short focal end, the distance on the optical axis from the first lens group G1 to the second lens group G2 increases from 2.243 mm to 4.866 mm, and the distance on the optical axis from the second lens group G2 to the filter element E7 decreases from 4.623 mm to 2.000 mm. That is, when the focal length of the optical camera lens gradually shortens during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. That is, when the object distance gradually shortens, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process.

[0195]

[0196]

[0197] Table 1C shows the aspheric surface data in the first embodiment, wherein k is the cone coefficient in the aspheric curve equation, and A4 to A28 represent the 4th to 28th order aspheric surface coefficients of each surface.

[0198] In addition, the following tables of the embodiments correspond to the schematic diagrams and aberration curves of the embodiments. The definitions of the data in the tables are the same as those in Tables 1A to 1C of the first embodiment, and are not elaborated herein.

[0199] <Second Embodiment>

[0200] Please refer to Figures 4 to 6 ,in Figure 4 Schematic diagrams showing an imaging device according to a second embodiment of the present disclosure at a long focal end and a short focal end, Figure 5 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the second embodiment at the telephoto end, and Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the second embodiment at the short focal end. Figure 4 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Figure 4 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Figure 4 It can be seen that the imaging device 2 includes an optical camera lens (not labeled) and an electronic photosensitive element IS. The optical camera lens includes an optical path turning element, an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, an aperture S4, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes the first lens E1, the second lens E2 and the third lens E3, and the second lens group G2 includes the fourth lens E4, the fifth lens E5 and the sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0201] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Figure 4 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Figure 4 The telephoto end shown in the upper part and Figure 4The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0202] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0203] The light path turning element is made of glass and is a prism with a light path turning function. For a description of the light path turning element, please refer to the above Figure 32 to Figure 35 The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Figure 4 The light path turning elements and their deflection effects on the light path are omitted.

[0204] The first lens E1 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, and both surfaces are aspherical. In addition, the optically effective areas of the object side surface and the image side surface of the first lens E1 present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0205] The second lens E2 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. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 both present a non-circularly symmetrical shape during the focal length adjustment process.

[0206] The third lens 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 convex near the optical axis. Both surfaces are aspherical, and at least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0207] The fourth lens E4 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0208] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is convex at the near optical axis, and its image-side surface is concave at the near optical axis. Both surfaces are aspherical, and at least one inflection point on the image-side surface falls within the optically effective area of ​​the image-side surface during the focus adjustment process.

[0209] 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 convex near the optical axis. Both surfaces are aspherical, and at least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during the focal length adjustment process. In addition, the optically effective area of ​​the image-side surface of the sixth lens element E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

[0210] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical camera lens.

[0211] Please refer to Table 2A to Table 2D below.

[0212]

[0213]

[0214]

[0215] The definitions described in Table 2B are the same as those in the first embodiment. In this embodiment, D0 is the distance between the object and the optical path turning element on the optical axis, D1 is the distance between the aperture S2 and the object side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image side surface of the sixth lens E6 and the filter element E7 on the optical axis. In addition, the optical camera lens of this embodiment can have various states with focal lengths between the short focal end and the long focal end in addition to the long focal end and the short focal end, and can correspond to the focusing states of various object distances. The optical camera lens disclosed in this disclosure is not limited to the states disclosed in Table 2B.

[0216]

[0217]

[0218] The curve equation of the aspheric surface in Table 2C shows the form as in the first embodiment.

[0219]

[0220]

[0221] The definitions described in Table 2D are the same as those in the first embodiment.

[0222] <Third Embodiment>

[0223] Please refer to Figures 7 to 9 ,in Figure 7 Schematic diagrams showing an imaging device according to a third embodiment of the present disclosure at a long focal length and a short focal length, Figure 8 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the third embodiment at the telephoto end, and Fig. 9 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the third embodiment at the short focal end. Figure 7 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Figure 7 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Figure 7It can be seen that the imaging device 3 includes an optical camera lens (not labeled) and an electronic photosensitive element IS. The optical camera lens includes an optical path turning element, an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes the first lens E1, the second lens E2 and the third lens E3, and the second lens group G2 includes the fourth lens E4, the fifth lens E5 and the sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0224] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Figure 7 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Figure 7 The telephoto end shown in the upper part and Figure 7 The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0225] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0226] The light path turning element is made of glass and is a prism with a light path turning function. For a description of the light path turning element, please refer to the above Figure 32 to Figure 35The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Figure 7 The light path turning elements and their deflection effects on the light path are omitted.

[0227] The first lens E1 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 at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the first lens E1 both present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0228] The second lens E2 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. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 both present a non-circularly symmetrical shape during the focal length adjustment process.

[0229] The third lens 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 convex near the optical axis. Both surfaces are aspherical. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0230] The fourth lens E4 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0231] The fifth lens E5 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. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0232] 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 at least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during the focal length adjustment process. Furthermore, the optically effective area of ​​the image-side surface of the sixth lens element E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

[0233] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical camera lens.

[0234] Please refer to Table 3A to Table 3D below.

[0235]

[0236]

[0237]

[0238] The definitions described in Table 3B are the same as those in the first embodiment. In this embodiment, D0 is the distance between the object and the optical path turning element on the optical axis, D1 is the distance between the aperture S2 and the object side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image side surface of the sixth lens E6 and the filter element E7 on the optical axis. In addition, the optical camera lens of this embodiment can have various states with focal lengths between the short focal end and the long focal end in addition to the long focal end and the short focal end, and can correspond to the focusing states of various object distances. The optical camera lens disclosed in this disclosure is not limited to the states disclosed in Table 3B.

[0239]

[0240]

[0241] The curve equation of the aspheric surface in Table 3C shows the form of the first embodiment.

[0242]

[0243]

[0244] The definitions described in Table 3D are the same as those in the first embodiment.

[0245] <Fourth Embodiment>

[0246] Please refer to Figures 10 to 12 ,in Fig.10 Schematic diagrams showing an image capturing device according to a fourth embodiment of the present disclosure at a long focal length and a short focal length, Fig.11 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fourth embodiment at the telephoto end, and Fig.12 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fourth embodiment at the short focal end. Fig.10 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Fig.10 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Fig.10 It can be seen that the imaging device 4 includes an optical camera lens (not labeled) and an electronic photosensitive element IS. The optical camera lens includes an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, an aperture S4, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes the first lens E1, the second lens E2 and the third lens E3, and the second lens group G2 includes the fourth lens E4, the fifth lens E5 and the sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0247] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Fig.10 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Fig.10 The telephoto end shown in the upper part and Fig.10 The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0248] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0249] In this embodiment, the optical camera lens may further include an optical path deflection element, which may be a prism or a reflector and may be located on the object side of the first lens E1, and has an optical path deflection function. For the location and related description of the optical path deflection element, please refer to the above-mentioned Figure 32 to Figure 35 The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Fig.10 The light path turning elements and their deflection effects on the light path are omitted.

[0250] The first lens E1 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 at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the first lens E1 both present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0251] The second lens E2 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. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 both present a non-circularly symmetrical shape during the focal length adjustment process.

[0252] The third lens E3 has positive refractive power and is made of glass. 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 at least one inflection point on the image-side surface falls within the optically effective area of ​​the image-side surface during the focal length adjustment process. In addition, the optically effective areas of the object-side surface and the image-side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0253] The fourth lens E4 has negative refractive power and is made of glass. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0254] The fifth lens E5 has positive refractive power and is made of glass. Its object-side surface is concave at the near optical axis, its image-side surface is convex at the near optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0255] The sixth lens E6 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. At least one inflection point on its object-side surface falls within the optical effective area of ​​the object-side surface during the focal length adjustment process, and at least one inflection point on its image-side surface falls within the optical effective area of ​​the image-side surface during the focal length adjustment process. In addition, the optical effective area of ​​the image-side surface of the sixth lens E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

[0256] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical camera lens.

[0257] Please refer to Table 4A to Table 4D below.

[0258]

[0259]

[0260]

[0261] The definitions described in Table 4B are the same as those in the first embodiment. In this embodiment, D0 is the distance between the object and the aperture S1 on the optical axis, D1 is the distance between the aperture S2 and the object-side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image-side surface of the sixth lens E6 and the filter element E7 on the optical axis. In addition, the optical camera lens of this embodiment can have various states with focal lengths between the short focal end and the long focal end in addition to the long focal end and the short focal end, and can correspond to the focusing states of various object distances. The optical camera lens disclosed in this disclosure is not limited to the states disclosed in Table 4B.

[0262]

[0263]

[0264] The curve equation of the aspheric surface in Table 4C shows the form as in the first embodiment.

[0265]

[0266]

[0267] The definitions described in Table 4D are the same as those in the first embodiment.

[0268] <Fifth Embodiment>

[0269] Please refer to Figures 13 to 15 ,in Fig.13 Schematic diagrams showing an imaging device according to a fifth embodiment of the present disclosure at a long focal end and a short focal end, Fig.14 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fifth embodiment at the telephoto end, and Fig.15 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the fifth embodiment at the short focal length. Fig.13 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Fig.13 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Fig.13It can be seen that the imaging device 5 includes an optical camera lens (not separately labeled) and an electronic photosensitive element IS. The optical camera lens includes an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, an aperture S4, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes the first lens E1, the second lens E2 and the third lens E3, and the second lens group G2 includes the fourth lens E4, the fifth lens E5 and the sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0270] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Fig.13 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Fig.13 The telephoto end shown in the upper part and Fig.13 The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0271] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0272] In this embodiment, the optical camera lens may further include an optical path deflection element, which may be a prism or a reflector and may be located on the object side of the first lens E1, and has an optical path deflection function. For the location and related description of the optical path deflection element, please refer to the above-mentioned Figure 32 to Figure 35 The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Fig.13 The light path turning elements and their deflection effects on the light path are omitted.

[0273] The first lens E1 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 at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the first lens E1 present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0274] The second lens E2 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. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 both present a non-circularly symmetrical shape during the focal length adjustment process.

[0275] The third lens 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 convex near the optical axis. Both surfaces are aspherical. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0276] The fourth lens E4 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0277] The fifth lens E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0278] 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 at least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during the focal length adjustment process. Furthermore, the optically effective area of ​​the image-side surface of the sixth lens element E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

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

[0280] Please refer to Table 5A to Table 5D below.

[0281]

[0282]

[0283]

[0284] The definitions described in Table 5B are the same as those in the first embodiment. In this embodiment, D0 is the distance between the object and the aperture S1 on the optical axis, D1 is the distance between the aperture S2 and the object-side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image-side surface of the sixth lens E6 and the filter element E7 on the optical axis. In addition, the optical camera lens of this embodiment can have various states of focal length between the short focal end and the long focal end in addition to the long focal end and the short focal end, and can correspond to the focusing states of various object distances. The optical camera lens disclosed in this disclosure is not limited to the states disclosed in Table 5B.

[0285]

[0286]

[0287] The curve equation of the aspheric surface in Table 5C shows the form as in the first embodiment.

[0288]

[0289]

[0290] The definitions described in Table 5D are the same as those in the first embodiment.

[0291] <Sixth Embodiment>

[0292] Please refer to Figures 16 to 18 ,in Fig.16 Schematic diagrams showing an imaging device according to a sixth embodiment of the present disclosure at a long focal end and a short focal end, Fig.17 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the sixth embodiment at the telephoto end, and Fig.18 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the sixth embodiment at the short focal end. Fig.16 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Fig.16 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Fig.16 It can be seen that the imaging device 6 includes an optical camera lens (not separately labeled) and an electronic photosensitive element IS. The optical camera lens includes an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes the first lens E1, the second lens E2 and the third lens E3, and the second lens group G2 includes the fourth lens E4, the fifth lens E5 and the sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0293] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Fig.16 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Fig.16 The telephoto end shown in the upper part and Fig.16 The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0294] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0295] In this embodiment, the optical camera lens may further include an optical path deflection element, which may be a prism or a reflector and may be located on the object side of the first lens E1, and has an optical path deflection function. For the location and related description of the optical path deflection element, please refer to the above-mentioned Figure 32 to Figure 35 The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Fig.16 The light path turning elements and their deflection effects on the light path are omitted.

[0296] The first lens E1 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 at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the first lens E1 both present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0297] The second lens E2 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. At least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process, and at least one inflection point on its image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 both present a non-circularly symmetrical shape during the focal length adjustment process.

[0298] The third lens 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 convex near the optical axis. Both surfaces are aspherical, and at least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0299] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0300] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0301] The sixth lens 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. At least one inflection point on its object-side surface falls within the optical effective area of ​​the object-side surface during the focal length adjustment process, and at least one inflection point on its image-side surface falls within the optical effective area of ​​the image-side surface during the focal length adjustment process. In addition, the optical effective area of ​​the image-side surface of the sixth lens E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

[0302] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical camera lens.

[0303] Please refer to Table 6A to Table 6D below.

[0304]

[0305]

[0306]

[0307] The definitions described in Table 6B are the same as those in the first embodiment. In this embodiment, D0 is the distance between the object and the aperture S1 on the optical axis, D1 is the distance between the aperture S2 and the object-side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image-side surface of the sixth lens E6 and the filter element E7 on the optical axis. In addition, the optical camera lens of this embodiment can have various states of focal length between the short focal end and the long focal end in addition to the long focal end and the short focal end, and can correspond to the focusing states of various object distances. The optical camera lens disclosed in this disclosure is not limited to the states disclosed in Table 6B.

[0308]

[0309]

[0310] The curve equation of the aspheric surface in Table 6C shows the form as in the first embodiment.

[0311]

[0312]

[0313] The definitions described in Table 6D are the same as those in the first embodiment.

[0314] <Seventh Embodiment>

[0315] Please refer to Figures 19 to 21 ,in Fig.19 Schematic diagrams showing an imaging device according to a seventh embodiment of the present disclosure at a long focal end and a short focal end, Fig. 20 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the seventh embodiment at the telephoto end, and Fig.21 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the seventh embodiment at the short focal length. Fig.19 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Fig.19 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Fig.19It can be seen that the imaging device 7 includes an optical camera lens (not separately labeled) and an electronic photosensitive element IS. The optical camera lens includes an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, an aperture S4, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes a first lens E1, a second lens E2 and a third lens E3, and the second lens group G2 includes a fourth lens E4, a fifth lens E5 and a sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0316] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Fig.19 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Fig.19 The telephoto end shown in the upper part and Fig.19 The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0317] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0318] In this embodiment, the optical camera lens may further include an optical path deflection element, which may be a prism or a reflector and may be located on the object side of the first lens E1, and has an optical path deflection function. For the location and related description of the optical path deflection element, please refer to the above-mentioned Figure 32 to Figure 35 The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Fig.19 The light path turning elements and their deflection effects on the light path are omitted.

[0319] The first lens E1 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 at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the first lens E1 both present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0320] The second lens E2 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 at least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 are both non-circularly symmetrical during the focal length adjustment process.

[0321] The third lens 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 convex near the optical axis. Both surfaces are aspherical, and at least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0322] The fourth lens element E4 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, and at least one inflection point on the object-side surface falls within the optically effective area of ​​the object-side surface during focus adjustment.

[0323] The fifth lens E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0324] 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 at least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during the focal length adjustment process. Furthermore, the optically effective area of ​​the image-side surface of the sixth lens element E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

[0325] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical camera lens.

[0326] Please refer to Table 7A to Table 7D below.

[0327]

[0328]

[0329]

[0330] The definitions described in Table 7B are the same as those in the first embodiment. In this embodiment, D0 is the distance between the object and the aperture S1 on the optical axis, D1 is the distance between the aperture S2 and the object-side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image-side surface of the sixth lens E6 and the filter element E7 on the optical axis. In addition, the optical camera lens of this embodiment can have various states of focal length between the short focal end and the long focal end in addition to the long focal end and the short focal end, and can correspond to the focusing states of various object distances. The optical camera lens disclosed in this disclosure is not limited to the states disclosed in Table 7B.

[0331]

[0332]

[0333] The curve equation of the aspheric surface in Table 7C is expressed in the form of the first embodiment.

[0334]

[0335]

[0336] The definitions described in Table 7D are the same as those in the first embodiment.

[0337] <Eighth Embodiment>

[0338] Please refer to Figure 22 to Figure 24 ,in Fig. 22 Schematic diagrams showing an image capturing device according to an eighth embodiment of the present disclosure at a long focal end and a short focal end, Fig.23From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the eighth embodiment at the telephoto end, and Fig.24 From left to right are the spherical aberration, astigmatism and distortion curves of the imaging device of the eighth embodiment at the short focal end. Fig. 22 The upper part of the diagram is a schematic diagram of the optical camera lens at the telephoto end, and Fig. 22 The lower part of is a schematic diagram of the optical camera lens at the short focal length. Fig. 22 It can be seen that the imaging device 8 includes an optical camera lens (not labeled) and an electronic photosensitive element IS. The optical camera lens includes an aperture S1, a first lens E1, a second lens E2, a third lens E3, an aperture S2, a fourth lens E4, an aperture S3, a fifth lens E5, an aperture S4, a sixth lens E6, a filter element E7 and an imaging surface IMG in order from the object side to the image side along the optical path. Further, the optical camera lens has a first lens group G1 and a second lens group G2 in order from the object side to the image side along the optical path, wherein the first lens group G1 includes the first lens E1, the second lens E2 and the third lens E3, and the second lens group G2 includes the fourth lens E4, the fifth lens E5 and the sixth lens E6. The first lens group G1 has a positive refractive power, and the second lens group G2 has a negative refractive power. The electronic photosensitive element IS is disposed on the imaging surface IMG. The optical camera lens includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0339] The optical camera lens adjusts the focal length of the optical camera lens by changing the distance between the two lens groups (G1, G2) during the focal length adjustment process. On the other hand, the optical camera lens can change its internal state according to the object distance during the focal length adjustment process to adjust the focal length of the optical camera lens accordingly. Fig. 22 It can be seen that the second lens group G2 moves relative to the first lens group G1 along the optical axis during the focal length adjustment process. Fig. 22 The telephoto end shown in the upper part and Fig. 22 The short focal end shown in the lower part. The long focal end corresponds to the state when the optical camera lens has the longest focal length, and the short focal end corresponds to the state when the optical camera lens has the shortest focal length.

[0340] When the focal length of the optical camera lens gradually becomes shorter during the focal length adjustment process, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1. Conversely, when the focal length of the optical camera lens gradually becomes longer during the focal length adjustment process, the second lens group G1 moves toward the object side along the optical axis relative to the first lens group G1. On the other hand, when the object distance gradually becomes shorter, the second lens group G2 moves toward the image side along the optical axis relative to the first lens group G1 during the focal length adjustment process. Conversely, when the object distance gradually becomes longer, the second lens group G2 moves toward the object side along the optical axis relative to the first lens group G1 during the focal length adjustment process. It is worth noting that during the focal length adjustment process, the lenses in any of the two lens groups do not move relative to each other.

[0341] In this embodiment, the optical camera lens may further include an optical path deflection element, which may be a prism or a reflector and may be located on the object side of the first lens E1, and has an optical path deflection function. For the location and related description of the optical path deflection element, please refer to the above-mentioned Figure 32 to Figure 35 The relevant paragraphs will not be repeated here. And, for the sake of simplicity, Fig. 22 The light path turning elements and their deflection effects on the light path are omitted.

[0342] The first lens E1 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 at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the first lens E1 both present a non-circularly symmetrical shape during the focal length adjustment process. In this embodiment, the non-circularly symmetrical shape can be similar to the above-mentioned Fig.31 The shape is, but not limited to, other types of non-circular symmetrical shapes may be used according to actual needs.

[0343] The second lens E2 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 at least one inflection point on its object side surface falls within the optical effective area of ​​the object side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the second lens E2 are both non-circularly symmetrical during the focal length adjustment process.

[0344] The third lens 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 convex near the optical axis. Both surfaces are aspherical, and at least one inflection point on the image side surface falls within the optical effective area of ​​the image side surface during the focal length adjustment process. In addition, the optical effective areas of the object side surface and the image side surface of the third lens E3 are both non-circularly symmetrical during the focal length adjustment process.

[0345] The fourth lens element E4 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, and at least one inflection point on the object-side surface falls within the optically effective area of ​​the object-side surface during focus adjustment.

[0346] The fifth lens E5 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. At least one inflection point on its object-side surface falls within the optically effective area of ​​the object-side surface during focal length adjustment, and at least one inflection point on its image-side surface falls within the optically effective area of ​​the image-side surface during focal length adjustment.

[0347] The sixth lens 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. At least one inflection point on its object-side surface falls within the optical effective area of ​​the object-side surface during the focal length adjustment process, and at least one inflection point on its image-side surface falls within the optical effective area of ​​the image-side surface during the focal length adjustment process. In addition, the optical effective area of ​​the image-side surface of the sixth lens E6 presents a non-circularly symmetrical shape during the focal length adjustment process.

[0348] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical camera lens.

[0349] Please refer to Table 8A to Table 8D below.

[0350]

[0351]

[0352] The definitions described in Table 8B are the same as those in the first embodiment. In this embodiment, D0 is the distance between the object and the aperture S1 on the optical axis, D1 is the distance between the aperture S2 and the object-side surface of the fourth lens E4 on the optical axis, and D2 is the distance between the image-side surface of the sixth lens E6 and the filter element E7 on the optical axis. In addition, the optical camera lens of this embodiment can have various states with focal lengths between the short focal end and the long focal end in addition to the long focal end and the short focal end, and can correspond to the focusing states of various object distances. The optical camera lens disclosed in this disclosure is not limited to the states disclosed in Table 8B.

[0353]

[0354]

[0355] The curve equation of the aspheric surface in Table 8C is expressed in the form of the first embodiment.

[0356]

[0357] The definitions described in Table 8D are the same as those in the first embodiment.

[0358] <Ninth Embodiment>

[0359] Please refer to Figure 25 to Figure 27 ,in Fig.25 A schematic three-dimensional diagram of one side of an electronic device according to a ninth embodiment of the present disclosure is shown. Fig.26 Draw Fig.25 A three-dimensional schematic diagram of the other side of the electronic device, and Fig. 27 Draw Fig.25 A cross-sectional schematic diagram of two imaging devices in an electronic device.

[0360] In this embodiment, the electronic device 200 is a smart phone and includes the imaging device 100, the imaging device 100a, the imaging device 100b, the imaging device 100c, the imaging device 100d, the imaging device 100e, the flash module 201, the display device 202, the focus assist module, the image signal processor and the image software processor.

[0361] The imaging device 100 is a camera module, which includes an imaging lens, a driving device, an electronic photosensitive element, and an image stabilization module. The imaging lens includes the optical camera lens, the lens barrel, and the holder member of the first embodiment described above, wherein the imaging lens may also be replaced with the optical camera lens of the other embodiments described above, and the present disclosure is not limited thereto. In addition, the imaging device 100 is a telephoto imaging device configured with an optical path turning element LF, and the optical path turning element LF is disposed on the object side of the first lens; thereby, the direction of light travel can be adjusted (the optical axis is turned), so that the total length of the imaging device 100 and the thickness of the electronic device 200 are not mutually restricted. The imaging device 100 uses an imaging lens to focus light to generate an image, and cooperates with the driving device to focus the image, and finally forms an image on the electronic photosensitive element and can be output as image data. In the present embodiment, the optical path turning element LF is a prism, but the present disclosure is not limited thereto. In other embodiments, the optical path turning element may be, for example, a reflector.

[0362] The driving device may have functions such as focal length adjustment, and its driving method may use a driving system such as a screw, a voice coil motor (VCM), such as a spring type or a ball type, a micro electro-mechanical system (MEMS), a piezoelectric system (Piezoelectric), and a shape memory alloy (Shape Memory Alloy). The driving device allows the imaging lens to obtain a better imaging position, and can provide a clear image of the subject at different object distances. In addition, the imaging device 100 is equipped with an electronic photosensitive element (such as CMOS, CCD) with good sensitivity and low noise, which is arranged on the imaging surface of the optical camera lens, which can truly present the good imaging quality of the optical camera lens.

[0363] The image stabilization module is, for example, an accelerometer, a gyroscope or a Hall Effect Sensor. The driving device can be used in conjunction with the image stabilization module to serve as an optical image stabilization (OIS) device, which can compensate for the blurry image caused by shaking at the moment of shooting by adjusting the changes in different axes of the imaging lens, or use the image compensation technology in the imaging software to provide an electronic image stabilization (EIS) function, further improving the image quality of dynamic and low-light scene shooting.

[0364] The imaging device 100, the imaging device 100a, and the imaging device 100b are all arranged on the same side of the electronic device 200, while the imaging device 100c, the imaging device 100d, the imaging device 100e, and the display device 202 are arranged on the other side of the electronic device 200, and the display device 202 can be a user interface, so that the imaging device 100c, the imaging device 100d, and the imaging device 100e can be used as a front lens to provide a selfie function, but the present disclosure is not limited to this. The imaging devices 100a, 100b, 100c, 100d, and 100e can all include the optical camera lens disclosed in the present disclosure and can all have a similar structural configuration as the imaging device 100, which will not be described one by one here. Among them, the imaging device 100a includes an optical lens group (not separately labeled) and an electronic photosensitive element (not separately labeled). Fig. 27 As shown, the optical lens group of the image capturing device 100a has an optical axis OA, and the moving direction DLG of the lens group in the image capturing device 100 is perpendicular to the optical axis OA of the image capturing device 100a; in addition, the moving direction DLG of the lens group in the image capturing device 100 is also perpendicular to the optical axis of the image capturing device 100b. In this way, the spatial configuration can be adjusted to reduce design restrictions.

[0365] The imaging device 100 is a telephoto imaging device with an optical path turning element configuration, the imaging device 100a is a telephoto imaging device, and the imaging device 100b is a wide-angle imaging device. Among them, half of the maximum viewing angle in the imaging device 100a falls within the range of 15 degrees to 30 degrees, and half of the maximum viewing angle in the imaging device 100b falls within the range of 30 degrees to 60 degrees. Among them, half of the maximum viewing angle in the imaging device 100b may also fall within the range of 35 degrees to 50 degrees. The imaging device 100, the imaging device 100a and the imaging device 100b of this embodiment have different viewing angles, which can expand the application range of the electronic device 200. The above-mentioned electronic device 200 is taken as an example that includes three imaging devices 100, 100a, and 100b located on the same side, but the present disclosure is not limited to this. In other embodiments, the electronic device may include at least two imaging devices located on the same side, or the electronic device may include at least three imaging devices located on the same side.

[0366] 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 (ToF) imaging device, wherein the imaging device 100e can obtain depth information of an image. The imaging devices 100c, 100d, 100e, and the display device 202 are all disposed on the same side of the electronic device 200, so that the imaging devices 100c, 100d, and 100e can be used as front lenses to provide a selfie function, but the present disclosure is not limited thereto.

[0367] The electronic device 200 is taken as an example including a plurality of imaging devices 100 , 100 a , 100 b , 100 c , 100 d , and 100 e , but the number and configuration of the imaging devices are not intended to limit the present disclosure.

[0368] When the user takes a photo of a subject, the electronic device 200 uses the imaging device 100, the imaging device 100a or the imaging device 100b to focus and capture the image, activates the flash module 201 for fill light, and uses the object distance information of the subject provided by the focus auxiliary module for rapid focusing, and the image signal processor performs image optimization processing to further improve the image quality produced by the optical camera lens. The focus auxiliary module can use an infrared or laser focus auxiliary system to achieve rapid focusing. In addition, the electronic device 200 can also use the imaging device 100c, the imaging device 100d or the imaging device 100e for shooting. The display device 202 can use a touch screen to cooperate with the diverse functions of the image software processor to perform image shooting and image processing (or a physical shooting button can be used for shooting). The image processed by the image software processor can be displayed on the display device 202.

[0369] <Tenth Embodiment>

[0370] Please refer to Fig.28 , is a three-dimensional schematic diagram illustrating one side of an electronic device according to the tenth embodiment of the present disclosure.

[0371] In this embodiment, the electronic device 300 is a smart phone. The electronic device 300 includes an imaging device 100f, an imaging device 100g, an imaging device 100h, an imaging device 100i, an imaging device 100j, an imaging device 100k, an imaging device 100m, an imaging device 100n, an imaging device 100p, a flash module 301, a focus assist module, an image signal processor, a display device, and an image software processor (not shown separately). The imaging devices 100f, 100g, 100h, 100i, 100j, 100k, 100m, 100n, and 100p are all disposed on the same side of the electronic device 300, and the display device is disposed on the other side of the electronic device 300. Furthermore, the imaging devices 100f, 100g, 100h, 100i, 100j, 100k, 100m, 100n, and 100p may all include the optical camera lens disclosed herein and may all have a similar structural configuration to the imaging device 100 in the ninth embodiment, which will not be described in detail herein.

[0372] The imaging devices 100f and 100g are telephoto imaging devices with an optical path deflection element configuration, the imaging devices 100h and 100i are telephoto imaging devices, the imaging devices 100j and 100k are wide-angle imaging devices, the imaging devices 100m and 100n are ultra-wide-angle imaging devices, and the imaging device 100p is a time-of-flight ranging imaging device. The optical path deflection element configurations of the imaging devices 100f and 100g may have, for example, similar Figure 32 to Figure 35 For the structure of Figure 32 to Figure 35 The description of the above-mentioned electronic device 300 is omitted here. In addition, the imaging device 100p can obtain the depth information of the image. The imaging devices 100f, 100g, 100h, 100i, 100j, 100k, 100m, 100n, and 100p of the present embodiment have different viewing angles, so that the electronic device 300 can provide different magnifications to achieve the shooting effect of optical zoom. The above-mentioned electronic device 300 is taken as an example including a plurality of imaging devices 100f, 100g, 100h, 100i, 100j, 100k, 100m, 100n, and 100p, but the number and configuration of the imaging devices are not intended to limit the present disclosure. When the user takes a photo of the subject, the electronic device 300 utilizes the imaging devices 100f, 100g, 100h, 100i, 100j, 100k, 100m, 100n, 100p to focus light and capture images, activates the flash module 301 for fill light, and performs subsequent processing in a manner similar to the aforementioned embodiment, which will not be repeated here.

[0373] The imaging device disclosed herein is not limited to being used in smart phones. The imaging device can be applied to mobile focus systems as required, and has the characteristics of excellent aberration correction and good imaging quality. For example, the imaging device can be widely used in electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring equipment, driving recorders, reversing imaging devices, multi-lens devices, identification systems, somatosensory game consoles, drones, wearable devices, and portable image recorders. The aforementioned electronic devices are only exemplary examples of the actual application of the present disclosure, and do not limit the scope of application of the imaging device disclosed herein.

[0374] Although the present disclosure is disclosed as above with the aforementioned preferred embodiments, it is not intended to limit the present disclosure. Any person skilled in the art may make some 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. An optical imaging lens, characterized in that, it includes two lens groups, the two lens groups include six lenses, the two lens groups are sequentially the first lens group and the second lens group along the optical path from the object side to the image side, the six lenses are sequentially the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens along the optical path from the object side to the image side, 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, a focal length adjustment process is performed by changing the distance between the two lens groups to adjust the focal length of the optical imaging lens, the optical imaging lens has a long focal length end and a short focal length end during the focal length adjustment process, the second lens group moves along the optical axis direction relative to the first lens group during the focal length adjustment process, and at least one surface of at least one lens in the optical imaging lens has at least one inflection point that falls within the optical effective area of the at least one surface during the focal length adjustment process; wherein, the first lens group includes the first lens, the second lens and the third lens, the second lens group includes the fourth lens, the fifth lens and the sixth lens, and the second lens has a negative refractive power; wherein, the focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, the thickness of the sixth lens on the optical axis is CT6, the distance between the fourth lens and the fifth lens on the optical axis is T45, the distance between the fifth lens and the sixth lens on the optical axis is T56, and they satisfy the following conditions: -12.0 < f2 / CT2 < -1.00; and 1.6 < (CT4 + CT5 + CT6) / (T45 + T56) < 15.

2. The optical imaging lens according to claim 1, characterized in that, the focal length of the second lens is f2, the thickness of the first lens on the optical axis is CT1, the thickness of the second lens on the optical axis is CT2, the thickness of the third lens on the optical axis is CT3, the thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, the thickness of the sixth lens on the optical axis is CT6, 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 fourth lens and the fifth lens on the optical axis is T45, the distance between the fifth lens and the sixth lens on the optical axis is T56, and they satisfy the following conditions: -10.0 < f2 / CT2 < -2.00; 0.50 < (CT1 + CT2 + CT3) / (T12 + T23) < 6.8; and 2.3 < (CT4 + CT5 + CT6) / (T45 + T56) < 11.

3. The optical imaging lens according to claim 1, characterized in that, The focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the thickness of the third lens on the optical axis is CT3, the thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, the thickness of the sixth lens on the optical axis is CT6, the distance between the fourth lens and the fifth lens on the optical axis is T45, 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 third lens is R5, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the third lens is TG1, and the distance on the optical axis from the object-side surface of the fourth lens to the image-side surface of the sixth lens is TG2, which satisfy the following conditions: -6.02 ≤ f2 / CT2 ≤ -4.10; 4.51 ≤ (CT4 + CT5 + CT6) / (T45 + T56) ≤ 5.76; 2.39 ≤ R5 / CT3 ≤ 4.53; and 1.85 ≤ TG1 / TG2 ≤ 2.

39.

4. The optical imaging lens according to claim 1, characterized in that the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the image-side surface of the third lens is R6, and the thickness of the third lens on the optical axis is CT3, which satisfy the following conditions: 1.0 < (R5 - R6) / CT3 < 10.

5. The optical imaging lens according to claim 1, characterized in that the first lens has a positive refractive power; wherein, the focal length of the first lens is f1, the focal length of the second lens is f2, the maximum distance between the optical effective area of the object-side surface of the first lens and the optical axis during the focal length adjustment process is Y11M, and the maximum distance between the optical effective area of the image-side surface of the sixth lens and the optical axis during the focal length adjustment process is Y62M, which satisfy the following conditions: -2.3 < f1 / f2 < -0.95; and 0.50 < Y11M / Y62M < 2.

0.

6. The optical imaging lens according to claim 1, characterized in that the object-side surface of the second lens is convex near the optical axis, and the image-side surface of the second lens is concave near the optical axis; wherein, the radius of curvature of the object-side surface of the second lens is R3, and the thickness of the second lens on the optical axis is CT2, which satisfy the following conditions: 1.0 < R3 / CT2 < 10.

7. The optical imaging lens according to claim 1, characterized in that when the focal length of the optical imaging lens gradually becomes shorter during the focal length adjustment process, the second lens group moves toward the image side along the optical axis relative to the first lens group; wherein, the focal length of the optical imaging lens at the telephoto end is fL, and the focal length of the optical imaging lens at the wide-angle end is fS, which satisfy the following conditions: 1.20 < fL / fS < 2.

30.

8. The optical imaging lens according to claim 1, characterized in that During the focal length adjustment process, the optical imaging lens has multiple states. In at least one state of the optical imaging lens, the optical effective area of at least one surface of at least one lens in the optical imaging lens presents a non-circular symmetric shape, and at least one inflection point on at least one surface of at least one lens in the second lens group falls within the optical effective area of the at least one surface during the focal length adjustment process.

9. An imaging device, characterized in that, comprising: the optical imaging lens according to claim 1; and an electronic photosensitive element disposed on an imaging surface of the optical imaging lens.

10. An electronic device, characterized in that, comprising at least two imaging devices, and the at least two imaging devices are both located on the same side of the electronic device, wherein the at least two imaging devices comprise: a first imaging device, comprising the optical imaging lens according to claim 1 and an electronic photosensitive element, wherein the electronic photosensitive element of the first imaging device is disposed on an imaging surface of the optical imaging lens; and a second imaging device, comprising an optical lens group and an electronic photosensitive element, wherein the electronic photosensitive element of the second imaging device is disposed on an imaging surface of the optical lens group; wherein, half of the maximum viewing angle of the second imaging device falls within the range of 30 degrees to 60 degrees.

11. An optical imaging lens, characterized in that, comprising two lens groups, the two lens groups comprising six lenses. The two lens groups are sequentially the first lens group and the second lens group along the optical path from the object side to the image side. The six lenses are sequentially the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens along the optical path from the object side to the image side, 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, a focal length adjustment process is performed by changing the distance between the two lens groups to adjust the focal length of the optical imaging lens. The optical imaging lens has a long focal length end and a short focal length end during the focal length adjustment process. The second lens group moves along the optical axis direction relative to the first lens group during the focal length adjustment process, and at least one inflection point on at least one surface of at least one lens in the optical imaging lens falls within the optical effective area of the at least one surface during the focal length adjustment process; wherein, the first lens group comprises the first lens, the second lens, and the third lens, the second lens group comprises the fourth lens, the fifth lens, and the sixth lens, the first lens has a positive refractive power, the second lens has a negative refractive power, and the object side surface of the third lens is convex near the optical axis; wherein, the focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the thickness of the third lens on the optical axis is CT3, and the radius of curvature of the object side surface of the third lens is R5, which satisfies the following conditions: -12.0 < f2 / CT2 < -1.00; and 0 < R5 / CT3 < 12.

0.

12. According to the optical imaging lens of claim 11, It is characterized in that the focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the thickness of the third lens on the optical axis is CT3, and the radius of curvature of the object-side surface of the third lens is R5, which satisfy the following conditions: -10.0 < f2 / CT2 < -2.00; and 1.00 < R5 / CT3 < 9.

50.

13. The optical imaging lens according to claim 11, It is characterized in that the image-side surface of the second lens is concave near the optical axis; wherein, the radius of curvature of the image-side surface of the second lens is R4, and the thickness of the second lens on the optical axis is CT2, which satisfy the following conditions: 0 < R4 / CT2 < 3.

7.

14. The optical imaging lens according to claim 11, It is characterized in that during the focal length adjustment process, the maximum distance between the optical effective area of the object-side surface of the first lens and the optical axis is Y11M, and during the focal length adjustment process, the maximum distance between the optical effective area of the image-side surface of the sixth lens and the optical axis is Y62M, which satisfy the following conditions: 0.50 < Y11M / Y62M < 2.

0.

15. The optical imaging lens according to claim 14, It is characterized in that the third lens has a positive refractive power; wherein, the focal length of the third lens is f3, and the thickness of the third lens on the optical axis is CT3, which satisfy the following conditions: 1.0 < f3 / CT3 < 6.

5.

16. The optical imaging lens according to claim 14, It is characterized in that the third lens has a positive refractive power, the image-side surface of the third lens is convex near the optical axis, and the object-side surface of the fourth lens is concave near the optical axis; wherein, the radius of curvature of the image-side surface of the third lens is R6, and the radius of curvature of the object-side surface of the fourth lens is R7, which satisfy the following conditions: 0.65 < R6 / R7 < 3.

0.

17. The optical imaging lens according to claim 11, It is characterized in that at least one lens in the optical imaging lens is made of plastic material, and the optical imaging lens performs the focal length adjustment process according to an object distance to correspondingly adjust the focal length of the optical imaging lens; wherein, when the object distance gradually becomes shorter, the second lens group moves toward the image side along the optical axis relative to the first lens group during the focal length adjustment process; wherein, the distance from the object-side surface of the first lens to the imaging surface on the optical axis when the optical imaging lens is at the telephoto end is TLL, and the distance from the object-side surface of the first lens to the imaging surface on the optical axis when the optical imaging lens is at the wide-angle end is TLS, which satisfy the following conditions: |1 - TLL / TLS| < 1.0E-2.

18. The optical imaging lens according to claim 11, It is characterized in that the first lens group has a positive refractive power, and the second lens group has a negative refractive power; Among them, the combined focal length of the first lens, the second lens, and the third lens is fG1, and the combined focal length of the fourth lens, the fifth lens, and the sixth lens is fG2. During the focal length adjustment process, the maximum distance between the optical effective area on the object side surface of the first lens and the optical axis is Y11M, and the maximum imaging height of the optical imaging lens during the focal length adjustment process is ImgHM, which satisfy the following conditions: -1.50 < fG2 / fG1 < -1.00; and 0.70 < Y11M / ImgHM < 1.

4.

19. An optical imaging lens, characterized in that, it includes two lens groups, the two lens groups include six lenses, the two lens groups are sequentially the first lens group and the second lens group along the optical path from the object side to the image side, the six lenses are sequentially the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens along the optical path from the object side to the image side, 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, a focal length adjustment process is performed by changing the distance between the two lens groups to adjust the focal length of the optical imaging lens. The optical imaging lens has a long focal length end and a short focal length end during the focal length adjustment process. The second lens group moves along the optical axis direction relative to the first lens group during the focal length adjustment process, and at least one inflection point on at least one surface of at least one lens in the optical imaging lens falls within the optical effective area of the at least one surface during the focal length adjustment process; Among them, the first lens group includes the first lens, the second lens, and the third lens, the second lens group includes the fourth lens, the fifth lens, and the sixth lens, and the second lens has a negative refractive power; Among them, the focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the distance on the optical axis from the object side surface of the first lens to the image side surface of the third lens is TG1, and the distance on the optical axis from the object side surface of the fourth lens to the image side surface of the sixth lens is TG2, which satisfy the following conditions: -12.0 < f2 / CT2 < -1.00; and 1.4 < TG1 / TG2 < 4.

0.

20. The optical imaging lens according to claim 19, characterized in that, the focal length of the second lens is f2, the thickness of the second lens on the optical axis is CT2, the distance on the optical axis from the object side surface of the first lens to the image side surface of the third lens is TG1, and the distance on the optical axis from the object side surface of the fourth lens to the image side surface of the sixth lens is TG2, which satisfy the following conditions: -10.0 < f2 / CT2 < -2.00; and 1.6 < TG1 / TG2 < 3.

0.

21. The optical imaging lens according to claim 19, characterized in that, the radius of curvature of the object side surface of the third lens is R5, the radius of curvature of the image side surface of the third lens is R6, and the thickness of the third lens on the optical axis is CT3, which satisfy the following conditions: |R5 + R6| / CT3 < 2.3。 22. The optical imaging lens according to claim 19, wherein, during the focal length adjustment, the maximum distance between the optical effective area of the object side surface of the first lens and the optical axis is Y11M, and during the focal length adjustment, the maximum distance between the optical effective area of the image side surface of the sixth lens and the optical axis is Y62M, and they satisfy the following conditions: 0.50 < Y11M / Y62M < 2.

0.

23. The optical imaging lens according to claim 22, wherein, the Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, half of the maximum viewing angle of the optical imaging lens at the telephoto end is HFOVL, and the aperture value of the optical imaging lens at the telephoto end is FnoL, and they satisfy the following conditions: 4.0 < (V1 + V3) / V2 < 6.0; 9.0 degrees < HFOVL < 16.0 degrees; and 1.6 < FnoL < 2.

2.

24. The optical imaging lens according to claim 22, wherein, the first lens has a positive refractive power, and the object side surface of the first lens is convex near the optical axis; wherein, the radius of curvature of the object side surface of the first lens is R1, and the focal length of the first lens is f1, and they satisfy the following conditions: 0.50 < R1 / f1 < 5.

0.

25. The optical imaging lens according to claim 19, wherein, it further includes at least one optical path turning element; wherein, the combined focal length of the fourth lens, the fifth lens and the sixth lens is fG2, the distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens of the optical imaging lens at the telephoto end is TG12L, and the distance on the optical axis from the image side surface of the third lens to the object side surface of the fourth lens of the optical imaging lens at the short focal end is TG12S, and they satisfy the following conditions: 1.0 < fG2 / (TG12L - TG12S) < 6.0.

Images