Optical lens assembly for imaging, image acquisition unit and electronic device

Abstract

An optical lens assembly for imaging, comprising seven lens elements (E1, E2, E3, E4, E5, E6, and E7), wherein the seven lens elements (E1, E2, E3, E4, E5, E6, and E7) are, in order from an object side to an image side along an optical path, a first lens element (E1), a second lens element (E2), a third lens element (E3), a fourth lens element (E4), a fifth lens element (E5), a sixth lens element (E6), and a seventh lens element (E7), and wherein each of the seven lens elements (E1, E2, E3, E4, E5, E6, and E7) has an object-side surface facing the object side and an image-side surface facing the image side; wherein the object-side surface of the first lens element (E1) is concave in a paraxial region thereof, the image-side surface of the second lens element (E2) is concave in a paraxial region thereof, the fourth lens element (E4) has a positive refractive power, the image-side surface of the fourth lens element (E4) is convex in a paraxial region thereof, the sixth lens element (E6) has a positive refractive power, the seventh lens element (E7) has a negative refractive power, the object-side surface of the seventh lens element (E7) is convex in a paraxial region thereof, and the image-side surface of the seventh lens element (E7) has at least one inflection point (P); and wherein an axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the second lens element (E2) and the third lens element (E3) is T23, an axial distance between the sixth lens element (E6) and the seventh lens element (E7) is T67, a central thickness of the fifth lens element (E5) is CT5, a focal length of the second lens element (E2) is f2, a focal length of the third lens element (E3) is f3, a focal length of the seventh lens element (E7) is f7, a radius of curvature of the object-side surface of the fourth lens element (E4) is R7, a radius of curvature of the object-side surface of the fifth lens element (E5) is R9, and the following conditions are met: 1.00 < T67 / CT5 < 4.20 ; 0.01 < T12 / T23 < 0.80 ; 0 < | f3 / f2 | + | f7 / f2 | < 1.50 ; and − 0.30 < (R7 + R9) / (R7 − R9) < 3.00.

Description

BACKGROUNDArtThe present disclosure relates to an optical lens assembly for imaging, an image acquisition unit, and an electronic device, more particularly, to an optical lens assembly for imaging and an image acquisition unit that can be used in an electronic device.Description of the Prior ArtAs semiconductor fabrication technology has advanced, image sensor performance has improved, allowing smaller pixel sizes. As a result, optical systems with high image quality have become indispensable.With the rapid technological development, the application range for electronic devices having optical systems has been widened, and the demands on optical systems have become more diverse. In the past, it has been a challenge for conventional optical systems to conform to the requirements of image quality, sensitivity, aperture size, system volume, and field of view. The present disclosure therefore provides an optical system that satisfies these requirements.SUMMARYAccording to one aspect of the present disclosure, an imaging optical lens assembly includes seven lens elements. The seven lens elements are, in order from an object side to an image side along a light path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, and a seventh lens element. Each of the seven lens elements has an object-side surface facing the object side and an image-side surface facing the image side.Preferably, the object-side surface of the first lens element is concave in a triaxial portion thereof. Preferably, the image-side surface of the second lens element is concave in a triaxial portion thereof. Preferably, the fourth lens element has a positive refractive power. Preferably, the image-side surface of the fourth lens element is convex in a triaxial portion thereof. Preferably, the sixth lens element has a positive refractive power. Preferably, the seventh lens element has a negative refractive power. Preferably, the object-side surface of the seventh lens element is convex in a triaxial portion thereof. Preferably, the image-side surface of the seventh lens element has at least one inflection point.When an axial distance between the first lens element and the second lens element is T 12, an axial distance between the second lens element and the third lens element is T 23, an axial distance between the sixth lens element and the seventh lens element is T 67, a central thickness of the fifth lens element is CT 5, a focal length of the second lens element is f 2, a focal length of the third lens element is f 3, a focal length of the seventh lens element is f 7, a radius of curvature of the object-side surface of the fourth lens element is R 7, and a radius of curvature of the object-side surface of the fifth lens element is R 9, the following conditions are preferably satisfied:According to another aspect of the present disclosure, an imaging optical lens assembly includes seven lens elements. The seven lens elements are, in order from an object side to an image side along a light path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, and a seventh lens element. Each of the seven lens elements has an object-side surface facing the object side and an image-side surface facing the image side.Preferably, the object-side surface of the first lens element is concave in a triaxial portion thereof. Preferably, the fourth lens element has a positive refractive power. Preferably, the image-side surface of the fourth lens element is convex in a triaxial portion thereof. Preferably, the sixth lens element has a positive refractive power. Preferably, the seventh lens element has a negative refractive power. Preferably, the image-side surface of the seventh lens element has at least one inflection point.When an axial distance between the sixth lens element and the seventh lens element is T67, a central thickness of the fifth lens element is CT5, a radius of curvature of the object-side surface of the first lens element is R1, a radius of curvature of the object-side surface of the fifth lens element is R9, a radius of curvature of the object-side surface of the sixth lens element is R11, a radius of curvature of the image-side surface of the sixth lens element is R12, an Abbe number of the third lens element is V3, and an Abbe number of the fifth lens element is V5, the following conditions are preferably satisfied:According to another aspect of the present disclosure, an imaging optical lens assembly includes seven lens elements. The seven lens elements are, in order from an object side to an image side along a light path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, and a seventh lens element. Each of the seven lens elements has an object-side surface facing the object side and an image-side surface facing the image side.Preferably, the object-side surface of the first lens element is concave in a triaxial portion thereof. Preferably, the image-side surface of the first lens element is convex in a triaxial portion thereof. Preferably, the fourth lens element has a positive refractive power. Preferably, the image-side surface of the fourth lens element is convex in a triaxial portion thereof. Preferably, the object-side surface of the fifth lens element is concave in a triaxial portion thereof. Preferably, the sixth lens element has a positive refractive power. Preferably, the seventh lens element has a negative refractive power. Preferably, the object-side surface of the seventh lens element is convex in a triaxial portion thereof. Preferably, the image-side surface of the seventh lens element has at least one inflection point. Preferably, the imaging optical lens assembly further comprises an aperture stop disposed between the second lens element and the fourth lens element.When an axial distance between the first lens element and the second lens element is T 12, an axial distance between the sixth lens element and the seventh lens element is T 67, a central thickness of the first lens element is CT 1, a central thickness of the fifth lens element is CT 5, a radius of curvature of the object-side surface of the sixth lens element is R 11, and a radius of curvature of the image-side surface of the sixth lens element is R 12, the following conditions are preferably satisfied:According to another aspect of the present disclosure, an image acquisition unit includes one of the aforementioned imaging optical lens assemblies and an image sensor, the image sensor being disposed on an image surface of the imaging optical lens assembly.According to another aspect of the present disclosure, an electronic device includes the above-mentioned image acquisition unit.BRIEF DESCRIPTION OF THE DRAWINGSThe disclosure may be better understood from the following detailed description of the embodiments with reference to the accompanying drawings: FIG. 1 is a schematic view of an image capturing unit according to the 1st embodiment of the present disclosure; FIG. 2 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 1st embodiment; FIG. 3 is a schematic view of an image capturing unit according to the 2nd embodiment of the present disclosure; FIG. 4 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 2nd embodiment; FIG. 5 is a schematic view of an image capturing unit according to the 3rd embodiment of the present disclosure; FIG. 6 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 3rd embodiment; FIG. 7 is a schematic view of an image capturing unit according to the 4th embodiment of the present disclosure; FIG. 8 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 4th embodiment; FIG. 9 is a schematic view of an image capturing unit according to the 5th embodiment of the present disclosure; FIG. 10 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 5th embodiment; FIG. 11 is a schematic view of an image capturing unit according to the 6th embodiment of the present disclosure; FIG. 12 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 6th embodiment; FIG. 13 is a schematic view of an image capturing unit according to the 7th embodiment of the present disclosure; FIG. 14 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 7th embodiment; FIG. 15 is a schematic view of an image capturing unit according to the 8th embodiment of the present disclosure; FIG. 16 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 8th embodiment; FIG. 17 is a perspective view of an image capturing unit according to the 9th embodiment of the present disclosure; FIG. 18 is a perspective view of an electronic device according to the 10th embodiment of the present disclosure; FIG. 19 is another perspective view of the electronic device of FIG. 18 ; FIG. 20 is a block diagram of the electronic device of FIG. 18 ; FIG. 21 is a schematic view of an electronic device according to the 11th embodiment of the present disclosure; FIG. 22 is another schematic view of the electronic device of FIG. 21 ; FIG. 23 is a perspective view of an electronic device according to the 12th embodiment of the present disclosure; FIG. 24 is a schematic view of inflection points and critical points on lens surfaces according to the 1st embodiment of the present disclosure; FIG. 25 is a schematic view of Y 1R 1, SAG 5R 1, and Sag 5R 2 according to the 1st embodiment of the present disclosure; FIG. 26 is a schematic view showing a configuration of a light deflector in an imaging optical lens assembly according to an embodiment of the present disclosure; FIG. 27 is a schematic view of another configuration of a light deflector in an imaging optical lens assembly according to an embodiment of the present disclosure; and FIG. 28 is a schematic view showing a configuration of two of light deflectors in an imaging optical lens assembly according to an embodiment of the present disclosure.DETAILED DESCRIPTIONAn optical lens assembly for imaging includes seven lens elements. The seven lens elements are, in order from an object side to an image side along a light path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, and a seventh lens element. Each of the seven lens elements of the imaging optical lens assembly has an object-side surface facing the object side and an image-side surface facing the image side.The object-side surface of the first lens element may be concave in a triaxial portion thereof. Therefore, it is advantageous for the magnification of the field of view to acquire a larger range of image information. The image-side surface of the first lens element may be convex in a triaxial portion thereof. Therefore, it is advantageous for adjusting the refractive power of the first lens element to correct spherical aberration in the optical lens assembly for imaging.The object-side surface of the second lens element may be convex in a triaxial portion thereof. Therefore, it is advantageous to adjust the surface shape and the refractive power of the second lens element to improve the central image quality. The image-side surface of the second lens element may be concave in a triaxial portion thereof. Therefore, it is advantageous to adjust the shape of the image-side surface of the second lens element to reduce aberrations caused by a large angle of incidence of light.The third lens element may have a positive refractive power. Therefore, it is advantageous for condensing light incident on the object-side end at large angles to prevent light from being diffused due to excessive incident angles. The image-side surface of the third lens element may be convex in a triaxial portion thereof. Therefore, it is advantageous for correcting spherical aberration and coma in the optical lens assembly for imaging.The fourth lens element may have a positive refractive power. Therefore, it is preferable to adjust the refractive power of the fourth lens element so as to effectively control the optical path direction. The object-side surface of the fourth lens element may be convex in a triaxial portion thereof. Therefore, it is advantageous to adjust the incident direction of the light on the fourth lens element to increase an image surface of the optical lens assembly for imaging. The image-side surface of the fourth lens element may be convex in a triaxial portion thereof. Therefore, it is preferable that the fourth lens element has the ability to concentrate light to prevent insufficient deflection of the light in the peripheral portion, which might result in ineffective light concentration.The fifth lens element may have a negative refractive power. Therefore, it is advantageous to balance the power of the sixth lens element and to reduce the back focus. The object-side surface of the fifth lens element may be concave in a triaxial portion thereof. Therefore, it is advantageous to make the incident angle of light having a large field of view entering the fifth lens element uniform to prevent light scattering.The sixth lens element may have a positive refractive power. Therefore, it is advantageous for focusing light to reduce the size of the optical lens assembly for imaging. The image-side surface of the sixth lens element may be convex in a triaxial portion thereof. Therefore, it is preferable to adjust the surface shape and the refractive power of the sixth lens element so as to reduce the size of the imaging optical lens assembly.The seventh lens element may have a negative refractive power. Therefore, it is advantageous to effectively control the back focus of the optical lens assembly for imaging so as to prevent the total length of an optical lens from becoming too long. The object-side surface of the seventh lens element may be convex in a triaxial portion thereof. Therefore, it is advantageous to reduce the back focus and at the same time correct off-axis aberrations.The object-side surface of the first lens element may have at least one critical point in an off-axis region thereof. Therefore, it is advantageous for adjusting the incident angle of light having a wide field of view to improve the peripheral illuminance of the image surface and thus improve the image quality. See FIG. 24, which shows a schematic view of the critical points C on the lens surfaces according to the first embodiment of the present disclosure. In FIG. 24, the object-side surface and the image-side surface of the first lens element E1, the object-side surface of the fourth lens element E4, and the image-side surface of the seventh lens element E7 each have a critical point C in an off-axis region thereof, and the object-side surface of the seventh lens element E7 has two critical points C in an off-axis region thereof. The first embodiment of the present disclosure shown in FIG. 24 is only exemplary. Each of the lens elements in various embodiments of the present disclosure may have one or more critical points in an off-axis region thereof.The image-side surface of the seventh lens element may have at least one inflection point. Therefore, it is advantageous for adjusting the angle of light incident on the image surface, controlling the angle of peripheral light, preventing vignetting at the image edge, and reducing distortions. See FIG. 24, which is a schematic view of the inflection points P on the lens surfaces according to the first embodiment of the present disclosure. In FIG. 24, the object-side surface and the image-side surface of the second lens element E2, the object-side surface of the third lens element E3, the object-side surface of the fourth lens element E4, and the object-side surface and the image-side surface of the fifth lens element E5 each have an inflection point P, and the object-side surface and the image-side surface of the first lens element E1, the object-side surface and the image-side surface of the sixth lens element E6, and the object-side surface and the image-side surface of the seventh lens element E7 each have two inflection points P. The first embodiment of the present disclosure shown in FIG. 24 is only exemplary. Each of the lens elements in various embodiments of the present disclosure may have one or more inflection points.According to the present disclosure, the imaging optical lens assembly may further include an aperture stop disposed between the second lens element and the fourth lens element. Therefore, it is advantageous for reducing the light blocking ratio of peripheral light to achieve an imaging effect with high brightness.When an axial distance between the sixth lens element and the seventh lens element is T67 and a central thickness of the fifth lens element is CT5, the following condition may be satisfied: 1.00<T67 / CT5< 4.20. Moreover, the following condition may also be satisfied: 1.15<T67 / CT5<3.00. Moreover, the following condition may also be satisfied: 1.30<T67 / CT5<2.50.When an axial distance between the first lens element and the second lens element is T 12 and an axial distance between the second lens element and the third lens element is T 23, the following condition may be satisfied: 0.01<T 12 / T 23<0.80. Therefore, it is advantageous to balance the axial distance between the first lens element and the second lens element and the axial distance between the second lens element and the third lens element to optimize the spatial configuration of the lens elements and reduce the sensitivity of the optical lens assembly for imaging. Moreover, the following condition may also be satisfied: 0.10<T12 / T23<0.65.When a focal length of the second lens element is f 2, a focal length of the third lens element is f 3, and a focal length of the seventh lens element is f 7, the following condition may be satisfied: 0<|f 3 / f 2|+|f 7 / f 2|<1.50. Therefore, it is preferable to set the refractive power of the second, third, and seventh lens elements that can be balanced by the refractive power of the second lens element so as to balance the focusing or scattering of light incident at large angles and improve the light collecting performance over the entire field of view. Moreover, the following condition may also be satisfied: 0.05<|f3 / f2|+|f7 / f2|<1.00. Moreover, the following condition may also be satisfied: 0.08≤|f3 / f2|+|f7 / f2|≤0.86.When a radius of curvature of the object-side surface of the fourth lens element is R 7 and a radius of curvature of the object-side surface of the fifth lens element is R 9, the following condition may be satisfied: -0.30<(R 7+R 9) / (R 7-R 9)<3.00. Therefore, it is preferable to effectively make the radius of curvature of the object-side surface of the fourth lens element coincide with the radius of curvature of the object-side surface of the fifth lens element, whereby the fourth lens element and the fifth lens element can complement each other, thereby improving the central image quality. Moreover, the following condition may also be satisfied: 0<(R7+R9) / (R7-R9)<2.50. Moreover, the following condition may also be satisfied: -0.13 ≤ (R7 + R9) / (R7 -R9) ≤ 1.53.When a radius of curvature of the object-side surface of the first lens element is R1 and the radius of curvature of the object-side surface of the fifth lens element is R9, the following condition may be satisfied: -0.60<(R1-R9) / (R1+R9)<0.60. Moreover, the following condition may also be satisfied: -0.50<(R1-R9) / (R1+R9)<0.30, Moreover, the following condition may also be satisfied: -0.40<(R1-R9) / (R1+R9)<0.10, Moreover, the following condition may also be satisfied: -0.35≤(R1-R9) / (R1+R9)≤-0.07.When a radius of curvature of the object-side surface of the sixth lens element is R 11 and a radius of curvature of the image-side surface of the sixth lens element is R 12, the following condition may be satisfied: 0.60<(R 11+R 12) / (R 11-R 12)<2.50. Therefore, it is preferable to set the radius of curvature of the object-side surface of the sixth lens element and the radius of curvature of the image-side surface of the sixth lens element such that the image-side surface of the sixth lens element may be curved more, thereby decreasing the total path length and enlarging the image surface. Moreover, the following condition may also be satisfied: 0.70<(R11+R12) / (R11-R12)<2.00. Moreover, the following condition may also be satisfied: 0.80<(R11+R12) / (R11-R12)<1.50. In addition, the following condition may also be satisfied: 0.90<(R11+R12) / (R11-R12)<1.20.When an Abbe number of the third lens element is V 3 and an Abbe number of the fifth lens element is V 5, the following condition may be satisfied: 1.80<V3 / V 5<5.00. Therefore, it is advantageous to adjust the lens material distribution to correct chromatic aberration. Moreover, the following condition may also be satisfied: 2.20<V3 / V5<4.00. Moreover, the following condition may also be satisfied: 2.50<V3 / V5<3.50.When the axial distance between the first lens element and the second lens element is T 12 and a central thickness of the first lens element is CT 1, the following condition may be satisfied: 0.01<T 12 / CT 1<0.80. Therefore, it is preferable to balance the axial distance between the first lens element and the second lens element and the central thickness of the first lens element so that light is incident at large angles, thereby improving the field of view and enlarging the image surface. Moreover, the following condition may also be satisfied: 0.10<T12 / CT1<0.60. In addition, the following condition may also be satisfied: 0.15<T12 / CT1<0.45.When a focal length of the imaging optical lens assembly is f and the focal length of the seventh lens element is f7, the following condition may be satisfied: -2.00<f / f7<-0.65. Moreover, the following condition may also be satisfied: -1.50<f / f7<-0.80.When an axial distance between the object-side surface of the first lens element and the image surface is TL and the focal length of the imaging optical lens assembly is f, the following condition may be satisfied: 1.50<TL / f<3.00. Therefore, it is advantageous for equilibrium to be reached between the total path length and the field of view. Moreover, the following condition may also be satisfied: 1.80<TL / f<2.50.When a radius of curvature of the image-side surface of the fifth lens element is R 10, the radius of curvature of the object-side surface of the sixth lens element is R 11, and the radius of curvature of the image-side surface of the sixth lens element is R 12, the following condition may be satisfied: 0.01<|R 12 / R 10|+|R 12 / R 11|<0.40. Therefore, it is preferable to effectively balance the radius of curvature of the image-side surface of the fifth lens element, the radius of curvature of the object-side surface of the sixth lens element, and the radius of curvature of the image-side surface of the sixth lens element, to improve the light collection quality of the imaging light, effectively correct the curvature of the field, and reduce the spherical aberration. Moreover, the following condition may also be satisfied: 0.04<|R12 / R10|+|R12 / R11|<0.20.When a radius of curvature of the object-side surface of the first lens element is R 1 and a radius of curvature of the image-side surface of the third lens element is R 6, the following condition may be satisfied: 0.10<|R 1 / R 6|<1.00. Therefore, it is preferable to set the radius of curvature of the object-side surface of the first lens element and the radius of curvature of the image-side surface of the third lens element so as to efficiently concentrate light from a wide field of view. Moreover, the following condition may also be satisfied: 0.16<|R1 / R6|<0.85.When the axial distance between the first lens element and the second lens element is T12 and an axial distance between the fourth lens element and the fifth lens element is T45, the following condition may be satisfied: 0.01<T12 / T45<1.50. Therefore, it is advantageous for compensating the axial distance from the first lens element to the second lens element and the axial distance from the fourth lens element to the fifth lens element to reduce manufacturing tolerances. Moreover, the following condition may also be satisfied: 0.05<T12 / T45<1.00. Moreover, the following condition may also be satisfied: 0.10<T12 / T45<0.80.When a central thickness of the third lens element is CT3and a central thickness of the sixth lens element is CT6, the following condition may be satisfied: 2.00<CT6 / CT3<3.50. Therefore, it is favorable for compensating the ratio of the central thickness of the third lens element to the central thickness of the sixth lens element, and by adjusting the central thickness of the sixth lens element, it is favorable for improving the ability of the sixth lens element to deflect light. Moreover, the following condition may also be satisfied: 2.10<CT6 / CT3<3.20.When a displacement parallel to an optical axis from an axial vertex of the object-side surface of the fifth lens element to a position of the maximum effective radius of the object-side surface of the fifth lens element is Sag5R1, a displacement parallel to the optical axis from an axial vertex of the image-side surface of the fifth lens element to a position of the maximum effective radius of the image-side surface of the fifth lens element is Sag5R2, and the central thickness of the fifth lens element is CT5, the following condition may be satisfied: 2.00<|S5R1 / CT5|+|S5R2 / CT5|<5.00. Therefore, it is advantageous to adjust the curvature of the peripheral surfaces on both the object side and the image side of the fifth lens element to moderate the refraction angle of the light and thereby prevent total reflection. Moreover, the following condition may also be satisfied: 2.40<|Ag5R1 / CT5|+|S5R2 / CT5|<4.00. See FIG. 25 which shows a schematic view of Sag5R1 and Sag5R2 according to the first embodiment of the present disclosure. When the direction from the axial apex of one surface to the position of the maximum effective radius of the same surface faces the image side of the imaging optical lens assembly, the value of the displacement is positive; when the direction from the axial apex of the surface to the position of the maximum effective radius of the same surface faces the object side of the imaging optical lens assembly, the value of the displacement is negative.When a maximum effective radius of the object-side surface of the first lens element is Y 1R 1 and a maximum image height of the imaging optical lens assembly (which may be half of a diagonal length of an effective photosensitive area of an image sensor) is ImgH, the following condition may be satisfied: 0.20<Y 1R 1 / ImgH<0.60. In addition, the following condition may also be satisfied: 0.30<Y1R1 / ImgH<0.50. see FIG. 25 which shows a schematic view of Y1R1 according to the 1st embodiment of the present disclosure.When the focal length of the imaging optical lens assembly is f and a focal length of the sixth lens element is f6, the following condition may be satisfied: 0.80<f / f6<2.00. Therefore, it is preferable to adjust the refractive power of the sixth lens element so as to concentrate the light and reduce the size of the imaging optical lens assembly. Moreover, the following condition may also be satisfied: 1.00<f / f6<1.50.When a focal length of the fourth lens element is f4 and the focal length of the sixth lens element is f6, the following condition may be satisfied: 1.20<f4 / f6<3.50. Moreover, the following condition may also be satisfied: 1.50<f4 / f6<2.80.When the axial distance between the first lens element and the second lens element is T 12 and a central thickness of the seventh lens element is CT 7, the following condition may be satisfied: 0.10<T 12 / CT 7<0.50. Therefore, it is preferable to balance the axial distance between the first lens element and the second lens element and the central thickness of the seventh lens element to improve lens arrangement and yield. Moreover, the following condition may also be satisfied: 0.18<T12 / CT7<0.42.When the radius of curvature of the object-side surface of the first lens element is R 1 and a radius of curvature of the image-side surface of the first lens element is R 2, the following condition may be satisfied: -2.00<(R 1-R 2) / (R 1+R 2)<0.50. Therefore, it is preferable to set the radius of curvature of the object-side surface of the first lens element and the radius of curvature of the image-side surface of the first lens element, and by the radius of curvature of the object-side surface of the first lens element, it is preferable to further increase the field of view and set the radius of curvature of the image-side surface of the first lens element to compensate for entry of wide-angle light into the optical lens assembly for imaging.Moreover, the following condition may also be satisfied: -1.50<(R1-R2) / (R1+R2)<0.20.When the Abbe number of the third lens element is V3, the following condition may be satisfied: 40.0<V3<75.0. Therefore, it is advantageous to adjust the material configuration of the third lens element so that the directivity of light over different wavelengths is balanced. Moreover, the following condition may also be satisfied: 50.0<V3<68.0.When the axial distance between the object-side surface of the first lens element and the image surface is TL and the maximum image height of the imaging optical lens assembly is ImgH, the following condition may be satisfied: 1.00<TL / ImgH<1.45. Moreover, the following condition may also be satisfied: 1.28<TL / ImgH<1.43.When the radius of curvature of the image-side surface of the first lens element is R2 and the radius of curvature of the object-side surface of the fifth lens element is R9, the following condition may be satisfied: -0.50<(R2-R9) / (R2+R9)<3.50. Moreover, the following condition may also be satisfied: -0.25<(R2-R9) / (R2+R9)<2.00. Moreover, the following condition may also be satisfied: -0.18<(R2-R9) / (R2+R9)<1.00.When an Abbe number of the seventh lens element is V 7, the following condition may be satisfied: 30.0<V 7<650.0. Therefore, it is advantageous for adjusting the optical path of the optical lens assembly for imaging to improve the image quality. Moreover, the following condition may also be satisfied: 40.0<V7<60.0.When a focal length of the first lens element is f 1, the focal length of the third lens element is f 3, and the focal length of the seventh lens element is f 7, the following condition may be satisfied: 0.30<|f 7 / / f 1|+|f 7 / f 3|<2.00. Therefore, it is preferable to set the seventh lens element to have stronger power and to be balanced by the powers of the first lens element and the third lens element, thereby increasing the relative illuminance of the peripheral field of view and decreasing the focal length. Moreover, the following condition may also be satisfied: 0.50<|f7 / / f1|+|f7 / f3|<1.20.According to the present disclosure, the foregoing features and conditions may be utilized in various combinations to achieve corresponding effects.According to the present disclosure, the lens elements of the imaging optical lens assembly may be made of either glass or plastic material. When the lens elements are made of glass material, the refractive power distribution of the imaging optical lens assembly can be more flexible, and the influence on imaging caused by a change in the ambient temperature can be reduced. The glass lens element may be made either by grinding or by molding. If the lens elements are made of plastic material, the manufacturing cost can be effectively reduced. Further, surfaces of each of the lens elements may be arranged to be spherical or aspherical. Spherical lens elements are easy to manufacture. The construction of aspherical lens elements enables more control variables for eliminating aberrations thereof and for reducing the required number of lens elements, and the total path length of the optical lens assembly for imaging can therefore be effectively shortened. In addition, the aspherical surfaces may be formed by plastic injection molding or glass molding.According to the present disclosure, when a lens surface is aspherical, it means that the lens surface has an aspherical shape in its entire optically effective area or one or more portions thereof.According to the present disclosure, the material of one or more lens elements may optionally include an additive that generates light absorption and interference effects and changes the transmittance of the lens elements in a particular wavelength range to reduce unwanted stray light or color variations. For example, the additive may optionally filter out light in the wavelength range of 600 nm to 800 nm to reduce excessive red light and / or near infrared light, or optionally filter out light in the wavelength range of 350 nm to 450 nm to prevent excessive blue light and / or near ultraviolet light from disturbing the final image. The additive may be homogeneously mixed with a plastic material to be used for manufacturing a lens element of mixed material by injection molding. Moreover, the additive may be applied to the lens surfaces to achieve the above-mentioned effects.According to the present disclosure, each of an object-side surface and an image-side surface has a perpendicular region and an off-axis region. The triaxial region refers to the region of the surface in which light rays pass close to the optical axis, and the off-axis region refers to the region of the surface that is away from the multiaxial region. In particular, unless otherwise stated, when the lens element has a convex surface, it means that the surface in the triaxial region thereof is convex; when the lens element has a concave surface, it means that the surface in the multiaxial region thereof is concave. Moreover, when a portion of the refractive power or focal point of a lens element is not defined, this means that the portion of the refractive power or focal point of the lens element is in the triaxial region thereof.According to the present disclosure, an inflection point is a point on the surface of the lens element at which the surface changes from concave to convex or vice versa. A critical point is a non-axial point of the lens surface at which its tangent is perpendicular to the optical axis.According to the present disclosure, the image surface of the imaging optical lens assembly may be flat or curved based on the corresponding image sensor, particularly a curved surface concave and facing toward the object side of the imaging optical lens assembly.According to the present disclosure, an image correction unit such as an image field beam may optionally be disposed between the lens element disposed along the optical path closest to the image side of the imaging optical lens assembly and the image surface to correct aberrations such as curvature of the image field. The optical properties of the image correction unit, such as curvature, thickness, refractive index, position and surface shape (convex or concave surface with spherical, aspherical, diffractive or Fresnel types), can be adjusted according to the construction of the image acquisition unit. In general, a preferred image correction unit is, for example, a thin transparent member having a concave object-side surface and a planar image-side surface, and the thin transparent member is disposed in the vicinity of the image surface.According to the present disclosure, at least one light deflector such as a prism or a mirror may be optionally provided between an imaged object and the image surface on the imaging optical path, and the surface shape of the prism or mirror may be planar, spherical, aspherical, or a free-form surface, so that the imaging optical lens assembly may be arranged more flexibly in space and thus the dimensions of an electronic device are not limited by the total path length of the imaging optical lens assembly. Specifically, see FIGS. 26 and 27, FIG. 26 is a schematic view of a configuration of a light deflector in an imaging optical lens assembly according to an embodiment of the present disclosure, and FIG. 27 is a schematic view of another configuration of a light deflector in an imaging optical lens assembly according to an embodiment of the present disclosure. In FIGS. 26 and 27, the optical lens assembly for imaging in the order from an imaged object (not shown in the figures) to an image surface IMG along an optical path may include a first optical axis OA 1, a light deflector LF, and a second optical axis OA 2. The light deflector LF may be disposed between the imaged object and a lens group LG of the imaging optical lens assembly as shown in FIG. 26, or may be disposed between a lens group LG and the image surface IMG of the imaging optical lens assembly as shown in FIG. 27. Further, see FIG. 28 which is a schematic view of a configuration of two light deflectors in an optical lens assembly for imaging according to an embodiment of the present disclosure. In FIG. 28, the optical lens assembly for imaging in the order from an imaged object (not shown in the figure) to an image surface IMG along a light path may include a first optical axis OA 1, a first light deflector LF 1, a second optical axis OA 2, a second light deflector LF 2, and a third optical axis OA 3. The first light deflector LF 1 is disposed between the imaged object and a lens group LG of the imaging optical lens assembly, the second light deflector LF 2 is disposed between the lens group LG and the image surface IMG of the imaging optical lens assembly, and the propagation direction of the light on the first optical axis OA 1 may be the same direction as the propagation direction of the light on the third optical axis OA 3, as shown in FIG. 28. The optical lens assembly for imaging may optionally be provided with three or more light deflectors, and the present disclosure is not limited to the type, number, and position of the light deflectors of the embodiments disclosed in the above figures.According to the present disclosure, the imaging optical lens assembly may include at least one aperture such as an aperture stop, a blend stop, or a field stop. The aperture or the field aperture is set to eliminate the stray light and thereby improve the image quality thereof.According to the present disclosure, an aperture diaphragm may be configured as a front diaphragm or as a middle diaphragm. A front stop disposed between an imaged object and the first lens element may provide a greater distance between an exit pupil of the imaging optical lens assembly and the image surface to generate a telecentric effect, thereby improving image capturing efficiency of an image sensor (e.g., CCD or CMOS). A central aperture disposed between the first lens element and the image surface is advantageous for increasing the viewing angle of the imaging optical lens assembly, thereby providing a wider field of view for the same.According to the present disclosure, the optical lens assembly for imaging may include an aperture control unit. The aperture control unit may be a mechanical component or a light modulator that can control the size and shape of the aperture by electricity or electrical signals. The mechanical component may include a movable member such as a shutter array or a light shielding film. The light modulator may include a shielding member such as a filter, an electrochromic material, or a liquid crystal layer. The aperture control unit controls the amount of incident light or the exposure time to improve the image quality adjustment capability. Moreover, the aperture control unit may be the aperture stop of the present disclosure, which changes the F-number to achieve various image effects such as the depth of field or the lens sensitivity.According to the present disclosure, the imaging optical lens assembly may include one or more optical elements for limiting the shape of light passing through the imaging optical lens assembly. Each optical element may be, but is not limited to, a filter, a polarizer, etc., and each optical element may be, but is not limited to, a one-piece element, a compound component, a thin layer, etc. The optical element may be disposed on the object side or the image side of the imaging optical lens assembly or between any two adjacent lens elements to transmit light in a certain shape, thereby satisfying application requirements.According to the present disclosure, the optical lens assembly for imaging may comprise at least one optical lens element, an optical element or a carrier having at least one surface with a low-reflection layer. The low-reflection layer can effectively reduce stray light generated due to light reflection at the interface. The low-reflection layer may be arranged in an optically non-effective region of an object-side surface or an image-side surface of the optical lens element or a connection surface between the object-side surface and the image-side surface. The optical element may be a light blocking element, an annular spacer, a tube element, a cover glass, a blue glass, a filter, a color filter, an optical path deflection element (e.g., a reflective element), a prism, a mirror, etc. The carrier may be a base for holding a lens assembly, a microlens disposed on an image sensor, a substrate surrounding the image sensor, a glass plate for protecting the image sensor, etc.According to the present disclosure, the object side and the image side are defined according to the optical axis direction, and the axial optical data is calculated along the optical axis. Further, when the optical axis is deflected by a light deflector, the axial optical data is also calculated along the deflected optical axis.According to the above description of the present disclosure, the following specific embodiments are provided for further explanation.1. EmbodimentFIG. 1 is a schematic view of an image capturing unit according to the 1st embodiment of the present disclosure. FIG. 2 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 1st embodiment. In FIG. 1, the image acquisition unit 1 includes the imaging optical lens assembly (reference numeral thereof is omitted) of the present disclosure and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a diaphragm S 1, a second lens element E 2, an aperture diaphragm ST, a third lens element E 3, a diaphragm S 2, a fourth lens element E 4, a diaphragm S 3, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7), with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has two inflection points. The image-side surface of the first lens element E1 has two inflection points. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof. The image-side surface of the first lens element E1 has a critical point in an off-axis portion thereof.The second lens element E2 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point. The image-side surface of the second lens element E2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E 4 has an inflection point. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has an inflection point.The sixth lens element E6 having positive refractive power has an object-side surface concaved in a triaxial portion thereof and an image-side surface convexed in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E 6 has two inflection points. The image-side surface of the sixth lens element E6 has two inflection points.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has two inflection points. The object-side surface of the seventh lens element E7 has two critical points in an off-axis portion thereof. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The equation of the aspherical surface profiles of the above lens elements of the 1st embodiment is as follows: wherein X is the displacement parallel to an optical axis from an axial apex on the aspherical surface to a point at a distance Y from the optical axis on the aspherical surface; Y is the vertical distance from the point on the aspherical surface to the optical axis; R is the radius of curvature; k is the conic coefficient; and Ai is the ith aspherical coefficient, wherein in embodiments i may be 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30, but is not limited thereto.In the imaging optical lens assembly of the image capturing unit 1 according to the 1st embodiment, when a focal length of the imaging optical lens assembly is f, an F-number of the imaging optical lens assembly is Fno, and half of a maximum field of view of the imaging optical lens assembly is HFOV, these parameters have the following values: f=4.01 millimeters (mm), Fno=2.03, and HFOV=60.0 degrees.When an axial distance between the object-side surface of the first lens element E 1 and the image surface IMG is TL and the focal length of the imaging optical lens assembly is f, the following condition is satisfied: TL / f=2.13.When the axial distance between the object-side surface of the first lens element E 1 and the image surface IMG is TL and a maximum image height of the imaging optical lens assembly is ImgH, the following condition is satisfied: TL / ImgH=1.37.When the focal length of the imaging optical lens assembly is f and a focal length of the sixth lens element E6 is f6, the following condition is satisfied: f / f6=1.23.When the focal length of the imaging optical lens assembly is f and the focal length of the seventh lens element E7 is f7, the following condition is satisfied: f / f7 = -1.05.When a focal length of the fourth lens element E4 is f4 and the focal length of the sixth lens element E6 is f6, the following condition is satisfied: f4 / f6=1.81.When a focal length of the second lens element E2 is f2, a focal length of the third lens element E3 is f3, and the focal length of the seventh lens element E7 is f7, the following condition is satisfied: |f3 / f2|+|f7 / f2|=0.08.When a focal length of the first lens element E1 is f1, the focal length of the third lens element E3 is f3, and the focal length of the seventh lens element E7 is f7, the following condition is satisfied: |f7 / f1|+|f7 / f3|=0.80.When a radius of curvature of the object-side surface of the first lens element E1 is R1 and a radius of curvature of the image-side surface of the third lens element E3 is R6, the following condition is satisfied: |R1 / R6|=0.28.When the radius of curvature of the object-side surface of the first lens element E1 is R1 and a radius of curvature of the image-side surface of the first lens element E1 is R2, the following condition is satisfied: (R1-R2) / (R1+R2) = -0.57.When the radius of curvature of the object-side surface of the first lens element E1 is R1 and a radius of curvature of the object-side surface of the fifth lens element E5 is R9, the following condition is satisfied: (R1-R9) / (R1+R9)= -0.07.When the radius of curvature of the image-side surface of the first lens element E1 is R2 and the radius of curvature of the object-side surface of the fifth lens element E5 is R9, the following condition is satisfied: (R2-R9) / (R2+R9)=0.52.When a radius of curvature of the object-side surface of the fourth lens element E4 is R7 and the radius of curvature of the object-side surface of the fifth lens element E5 is R9, the following condition is satisfied:When a radius of curvature of the object-side surface of the sixth lens element E6 is R11 and a radius of curvature of the image-side surface of the sixth lens element E6 is R12, the following condition is satisfied:When a radius of curvature of the image-side surface of the fifth lens element E5 is R10, the radius of curvature of the object-side surface of the sixth lens element E6 is R11, and the radius of curvature of the image-side surface of the sixth lens element E6 is R12, the following condition is satisfied: |R12 / R10|+|R12 / R11|=0.07.When an axial distance between the first lens element E 1 and the second lens element E 2 is T 12 and a central thickness of the first lens element E 1 is CT 1, the following condition is satisfied: T 12 / CT 1=0.24 In this embodiment, an axial distance between two adjacent lens elements is a distance in a triaxial region between two adjacent lens surfaces of the two adjacent lens elements.When the axial distance between the first lens element E1 and the second lens element E2 is T12 and an axial distance between the second lens element E2 and the third lens element E3 is T23, the following condition is satisfied: T12 / T23=0.26.When the axial distance between the first lens element E1 and the second lens element E2 is T12 and an axial distance between the fourth lens element E4 and the fifth lens element E5 is T45, the following condition is satisfied: T12 / T45=0.40.When the axial distance between the first lens element E1 and the second lens element E2 is T12 and a central thickness of the seventh lens element E7 is CT7, the following condition is satisfied: T12 / CT7=0.27.When an axial distance between the sixth lens element E6 and the seventh lens element E7 is T67 and a central thickness of the fifth lens element E5 is CT5, the following condition is satisfied: T67 / CT5 = 1.68.When a central thickness of the third lens element E 3 is CT 3 and a central thickness of the sixth lens element E 6 is CT 6, the following condition is satisfied: CT 6 / CT 3=2.47.When an Abbe number of the third lens element E3 is V3, the following condition is satisfied: V3=56.0.When an Abbe number of the seventh lens element E7 is V7, the following condition is satisfied: V7=56.0.When the Abbe number of the third lens element E3 is V3 and an Abbe number of the fifth lens element E5 is V5, the following condition is satisfied: V3 / V5=2.87.When a maximum effective radius of the object-side surface of the first lens element E1 is Y1R1 and the maximum image height of the imaging optical lens assembly is ImgH, the following condition is satisfied:When a displacement parallel to the optical axis from an axial vertex of the object-side surface of the fifth lens element E5 to a position of the maximum effective radius of the object-side surface of the fifth lens element E5 is Sag5R1, a displacement parallel to the optical axis from an axial vertex of the image-side surface of the fifth lens element E5 to a position of the maximum effective radius of the image-side surface of the fifth lens element E5 is Sag5R2, and the central thickness of the fifth lens element E5 is CT5, In this embodiment, the following condition is satisfied: |S5R1 / CT5|+|S5R2 / CT5|=2.68. the direction of Sag5R1 points toward the object side of the imaging optical lens assembly, and the value of Sag5R1 is negative; the direction of Sag5R2 points toward the object side of the imaging optical lens assembly, and the value of Sag5R2 is negative.The detailed optical data of the first embodiment are shown in Table 1A and the data of aspherical surfaces are shown in Table 1B below.0ObjectInfinityInfinity1Lens 1-4,4725(ASP)0,638Plastic is a plastic material1,54456,0-11,582-16,2036(ASP)0,6253Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,4724Lens 22,7877(ASP)0,365Plastic is a plastic material1,61425,6151,8352,7306(ASP)0,7036Ape.-AperturePlano-0,1137Lens 36,0610(ASP)0,495Plastic is a plastic material1,54456,08,158-16,0516(ASP)0,0859Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,10510Lens 438,9463(ASP)0,703Plastic is a plastic material1,54456,05,8711-3,4596(ASP)-0,32012Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,70113Lens 5-5,1668(ASP)0,305Plastic is a plastic material1,66919,5-8,7114-46,6451(ASP)0,57615Lens 6-52,0243(ASP)1,223Plastic is a plastic material1,54456,03,2516-1,7219(ASP)0,51117Lens 74,6758(ASP)0,571Plastic is a plastic material1,54456,0-3,81181,3740(ASP)1,12019FilterPlano0,210Glass Glass1,51764,2-20Plano0,52021Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S1 (surface 3) is 1.627 mmmAn effective radius of the aperture S2 (surface 9) is 1.185 mm.An effective radius of the aperture S 3 (surface 12) is 1.347 mm.k = k-6,514460000E+000.0000000000E+000.0000000000E+000.0000000000E+00A4 =1,123638301E-012,372008724E-011,218262718E-019.84974233E-03A6 =-7,991968301E-02-2,505245950E-01-3,342475459E-014,594829489E-02A8 =6,361645118E-022,879451793E-017,991448832E-01-1,983722856E-01A10 = =-4,606304809E-02-3,240154105E-01-1,507510070E+008,045876973E-01A12 =2,726738329E-024,227381263E-012,139709518E+00-1,967019436E+00A14 =-1,243726033E-02-5,684840208E-01-2,198792669E+003,24314552E+00A16 =4,250768142E-036.205507251E-011,608384947E+00-3,716128392E+00A18=-1,069496580E-03-4,892114749E-01-8,240658458E-012,963978160E+00A20 =1,942136710E-042,6767960601E-012,872608257E-01-1,613038136E+00A22 =-2,467991318E-05-9,884695676E-02-6,455613545E-025,696837163E-01A24 =2,077782457E-062,347903755E-028,393241665E-03-1,173380814E-01A26 =-1,039584565E-07-3,236988590E-03-4,773868611E-041,066629988E-02A28 =2,337501791E-091,967284334E-04--Surface # #781011k = k1.463060000E+010.0000000000E+001,900450000E+010.0000000000E+00A4 =6,402101186E-03-5,785870191E-033.055423345E-03-4,340736105E-02A6 =1,166891073E-025,633331725E-03-8,852695045E-037,007472366E-02A8 =-4,912197910E-021,321162364E-034,475445832E-02-2,915092938E-01A10 = =1,720365365E-01-1,525781773E-02-1,530625454E-018,397557442E-01A12 =-3,620288206E-01-1,348977049E-023,859891186E-01-1,611909937E+00A14 =4,629562269E-011,403283234E-01-6,7219529557E-012,073319361E+00A16 =-3,576619694E-01-2,932911372E-017.742980153E-01-1,789870986E+00A18=1,526512564E-013,103979648E-01-5,775757154E-011, 021927901E+00A20 =-2,785235942E-02-1,863160320E-012,6765291E-01-3,696717726E-01A22 =-6,063198626E-02-6,999431374E-027,664250478E-02A24 =--8,403078645E-037,883197237E-03-6,926904802E-03Surface # #13141516k = k0.0000000000E+000.0000000000E+000.0000000000E+00-3,503170000E+00A4 =-1,927960686E-01-1,083980150E-01-1,669264437E-02-4,384077234E-03A6 =5,058464996E-013,456424205E-024,79958647E-02-2,060728507E-02A8 =-2,175097108E+001,416472409E-01-1,261503306E-013,230566228E-02A10 = =6,905566141E+00-5,356808497E-012,041920750E-01-2,721552197E-02A12 =-1,556794643E+011, 049995675E+00-2,191015953E-011,550905607E-02A14 =2,541011226E+01-1,342672779E+001,635170834E-01-6,2095503807E-03A16 =-3,04495191E+011,194374661E+00-8,699905826E-021,819823325E-03A18=2,693152405E+01-7,590202349E-013,338403477E-02-4,006573960E-04A20 =-1,751672601E+013,474134468E-01-9.248531370E-036,634234701E-05A22 =8,260314141E+00-1,137584733E-011,830026191E-03-8,097851524E-06A24 =-2,743396138E+002,6015816E-02-2,518605066E-047.016570180E-07A26 =6,07713909E-01-3,949384661E-032,287102384E-05-4,058564855E-08A28 =-8.051826400E-023,578439130E-04-1,230241898E-061,399342658E-09A30 =4,822549557E-03-1,465766465E-052,964752085E-08-2,169241694E-11Surface # #1718k = k0.0000000000E+00-3,329780000E+00A4 =-8,243541606E-02-5,84930747E-02A6 =2,041889574E-022,237837732E-02A8 =-5,501282382E-03-7,217017637E-03A10 = =1,671873865E-031,854626148E-03A12 =-4,437739538E-04-3,689793958E-04A14 =8,952025211E-055,600492946E-05A16 =-1,31212763E-05-6,442401259E-06A18=1,382505332E-065,584284280E-07A20 =-1,042776180E-07-3,612242230E-08A22 =5,573139655E-091,713023223E-09A24 =-2,058991334E-10-5,7714611171E-11A26 =4,996817753E-121,306004664E-12A28 =-7,158994107E-14-1,777416410E-14A30 =4,581775467E-161,098242467E-16In Table 1A, the radius of curvature, thickness and focal length are given in millimeters (mm). The surface numbers 0-21 represent the surfaces arranged along the optical axis from the object side to the image side. In Table 1B, k represents the conic coefficient of the aspherical surface profile equation. A4-A30 represent the aspherical coefficients in the order from 4th to 30th. The following tables for each embodiment show the respective schematic parameters and aberration curves, the definitions of the tables being the same as in Table 1A and Table 1B of the 1st embodiment. Therefore, no further explanation will be given in this respect.2. EmbodimentFIG. 3 is a schematic view of an image capturing unit according to the 2nd embodiment of the present disclosure. FIG. 4 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 2nd embodiment. In FIG. 3, the image acquisition unit 2 includes the imaging optical lens assembly (reference numeral of which is omitted) of the present disclosure and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a diaphragm S 1, a second lens element E 2, an aperture diaphragm ST, a third lens element E 3, a diaphragm S 2, a fourth lens element E 4, a diaphragm S 3, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7), with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has two inflection points. The image-side surface of the first lens element E1 has two inflection points. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof. The image-side surface of the first lens element E1 has a critical point in an off-axis portion thereof.The second lens element E2 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point. The image-side surface of the second lens element E2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface concaved in a triaxial portion thereof and an image-side surface convexed in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has two inflection points. The image-side surface of the fifth lens element E5 has a critical point in an off-axis portion thereof.The sixth lens element E6 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E 6 has an inflection point. The image-side surface of the sixth lens element E6 has two inflection points. The object-side surface of the sixth lens element E6 has a critical point in an off-axis portion thereof.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has four inflection points. The object-side surface of the seventh lens element E7 has a critical point in an off-axis region thereof. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The detailed optical data of the 2nd embodiment are shown in Table 2A and the data of aspherical surfaces are shown in Table 2B below.1Lens 1-4,4534(ASP)0,617Plastic is a plastic material1,54556,1-17,062-8,9645(ASP)0,6243Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,4254Lens3,2886(ASP)0,364Plastic is a plastic material1,58728,3-81,3552,9508(ASP)0,6836Ape.-AperturePlano-0,1037Lens 37,2911(ASP)0,550Plastic is a plastic material1,54456,06,768-7,2160(ASP)0,1189Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,13810Lens 4-32,2581(ASP)0,619Plastic is a plastic material1,54456,07,6211-3,6997(ASP)-0,29512Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,75513Lens 5-6,7327(ASP)0,305Plastic is a plastic material1,66919,5-7,251417,6784(ASP)0,45815Lens 6172,9812(ASP)1,259Plastic is a plastic material1,54456,03,5516-1,9481(ASP)0,72517Lens 74,6648(ASP)0,646Plastic is a plastic material1,54456,0-4,35181,4933(ASP)1,12019FilterPlano0,210Glass Glass1,51764,2-20Plano0,43021Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S1 (surface 3) is 1.575 mm.An effective radius of the aperture S 2 (surface 9) is 1.221 mm.An effective radius of the aperture S 3 (surface 12) is 1.348 mm.k = k-7.538450000E+000.0000000000E+000.0000000000E+000.0000000000E+00A4 =1,091908848E-012,353293557E-011,255541392E-012,113872403E-02A6 =-7.083802502E-02-2,204463011E-01-3,057296134E-01-7,162995337E-02A8 =4,819370470E-022,116713341E-016,330487583E-013,120284660E-01A10 = =-2,791167323E-02-1,853001079E-01-1,033487096E+00-8,418965168E-01A12 =1,253622910E-022,484355094E-011,267209421E+001,780889172E+00A14 =-4,096445772E-03-4,268783730E-01-1,108964261E+00-2,758178948E+00A16 =9,195005785E-045,536815184E-016,698855482E-013,031488417E+00A18=-1,269857713E-04-4,782903689E-01-2,673230727E-01-2,314124749E+00A20 =6,582719639E-062.740510665E-016,432848319E-021,193856710E+00A22 =1,007262793E-06-1,034098840E-01-7,178875153E-03-3,970647309E-01A24 =-2,235941683E-072,475284856E-02-1,529959201E-047,698948842E-02A26 =1,749888475E-08-3,410899934E-038,138945956E-05-6,626165436E-03A28 =-5,248589092E-102,061842545E-04--Surface # #781011k = k2.08139060, E+010.0000000000E+008,802340000E+010.0000000000E+00A4 =1,895085695E-03-8,674454096E-033,033878754E-03-3,239121506E-02A6 =1,336324082E-027.335548204E-03-2,284885719E-028.111800880E-03A8 =-4,6255420263E-02-2,784646396E-021,088438652E-012,176267411E-02A10 = =1,425841903E-011,363974832E-01-3,072280264E-01-1,309245449E-01A12 =-2,624006442E-01-4,200087656E-015,932435494E-013,188621479E-01A14 =2,953548732E-018.072056878E-01-8,089524042E-01-4,615763772E-01A16 =-2,017625455E-01-9,995028743E-017,692923198E-014,265245498E-01A18=7,648818272E-027,966225671E-01-4,977624434E-01-2,547282881E-01A20 =-1,250739701E-02-3,95708113E-012,081891618E-019,544546184E-02A22 =-1,114779940E-01-5,067755346E-02-2,047438988E-02A24 =--1,362100750E-025,450267846E-031,927604975E-03Surface # #13141516k = k0.0000000000E+000.0000000000E+000.0000000000E+00-3,222360000E+00A4 =-2,034555535E-01-1,410577023E-01-8,008053817E-03-1,299139547E-02A6 =4,765420067E-019,378573660E-02-5,371379137E-03-5,987649059E-03A8 =-2,103182561E+00-7,589029276E-024,720332899E-041,609763828E-02A10 = =6,785667911E+001,691626344E-028,009664501E-03-1,439852465E-02A12 =-1,512155976E+011,300360583E-01-1,080138458E-027.981541565E-03A14 =2,391700408E+01-2,909653960E-018,410297057E-03-2,756895575E-03A16 =-2,742120068E+013,411560942E-01-4,419482404E-035,889070356E-04A18=2,303670279E+01-2,592066177E-011,589262447E-03-7,188213615E-05A20 =-1,418599239E+011,350267722E-01-3,84460689E-042,673496936E-06A22 =6,330906616E+00-4,883212648E-025,953363820E-056,189913407E-07A24 =-1,992657490E+001,208548217E-02-5,139413508E-06-1,172692555E-07A26 =4,193693004E-01-1,956324609E-031,1683333E-079.570104507E-09A28 =-5,294728469E-021,868981490E-041,658947820E-08-4,037327109E-10A30 =3,0311236225E-03-8,000212280E-06-1,054191622E-097,172848567E-12Surface # #1718k = k0.0000000000E+00-3,664660000E+00A4 =-9,946539380E-02-5,361820839E-02A6 =3,204929241 E-021,856954796E-02A8 =-1,026776210E-02-5,071478308E-03A10 = =3,228510160E-031,06690352E-03A12 =-8,130843566E-04-1,680480329E-04A14 =1,477330041E-041,958811372E-05A16 =-1,901893093E-05-1,681511554E-06A18=1,744711789E-061,0609055E-07A20 =-1,144528611E-07-4,882790263E-09A22 =5,329087547E-091,630248431E-10A24 =-1,718602955E-10-3,907904234E-12A26 =3,643154799E-126,618422394E-14A28 =-4,549854188E-14-7,471216701E-16A30 =2,520623448E-164,382470483E-18In the 2nd embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in Table 2C below are the same as those given in the 1st embodiment, with corresponding values for the 2nd embodiment; therefore, an explanation thereof will not be given again.Moreover, these parameters can be calculated from Table 2A and Table 2B as the following values, and satisfy the following conditions:f [mm]4,26(R7+R9) / (R7-R9)1,53Fno2,05(R11 + R12) / (R11 -R12)0,98HFOV [grade]56,7|R12 / R10|+|R12 / R110,12TL / f2,06T12 / CT10,32TL / ImgH1,42T12 / T230,34f / f61,20T12 / T450,43f / f7-0,98T12 / CT70,31f4 / f62,15T67 / CT52,38|f3 / f2|+|f7 / f20,14CT6 / CT32,29|f7 / f1|+|f7 / f30,90V356,0|R1 / R6|0,62V756,0(R1-R2) / ((R1+R2)-0,34V3 / V52,87(R1-R9) / (R1+R9)-0,20Y1R1 / ImgH0,39(R2-R9) / (R2+R9)0,14|S5R1 / CT5|+|Ag5R2 / CT5|2,713. EmbodimentFIG. 5 is a schematic view of an image capturing unit according to the 3rd embodiment of the present disclosure. FIG. 6 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 3rd embodiment. In FIG. 5, the image acquisition unit 3 includes the imaging optical lens assembly (reference numeral of which is omitted) of the present disclosure and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a diaphragm S 1, a second lens element E 2, an aperture diaphragm ST, a third lens element E 3, a diaphragm S 2, a fourth lens element E 4, a diaphragm S 3, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7) with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has two inflection points. The image-side surface of the first lens element E1 has two inflection points. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof. The image-side surface of the first lens element E1 has a critical point in an off-axis portion thereof.The second lens element E2 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of glass material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E 4 has an inflection point. The image-side surface of the fourth lens element E4 has an inflection point. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has two inflection points. The image-side surface of the fifth lens element E5 has two critical points in an off-axis portion thereof.The sixth lens element E6 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E 6 has two inflection points. The image-side surface of the sixth lens element E6 has three inflection points. The object-side surface of the sixth lens element E6 has a critical point in an off-axis portion thereof.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has three inflection points. The object-side surface of the seventh lens element E7 has a critical point in an off-axis region. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The detailed optical data of the 3rd embodiment are shown in Table 3A and the data of aspherical surfaces are shown in Table 3B below.1Lens 1-3,9826(ASP)0,624Plastic is a plastic material1,54456,083,282-3,8629(ASP)0,5653Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,4304Lens 23,6996(ASP)0,351Plastic is a plastic material1,58728,3-12,6652,3834(ASP)0,7386Ape.-AperturePlano-0,0777Lens 37,5225(ASP)0,551Glass Glass1,55263,47,168-8,1161(ASP)0,1069Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,12610Lens 422,6306(ASP)0,694Plastic is a plastic material1,54456,06,2511-3,9573(ASP)-0,24612Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,81813Lens 5-4,9063(ASP)0,300Plastic is a plastic material1,64222,5-5,711414,7633(ASP)0,37215Lens 6102,9221(ASP)1,274Plastic is a plastic material1,54456,02,9916-1,6446(ASP)0,50517Lens 74,6575(ASP)0,604Plastic is a plastic material1,54456,0-3,78181,3602(ASP)1,12019FilterPlano0,210Glass Glass1,51764,2-20Plano0,38721Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S1 (surface 3) is 1.717 mm.An effective radius of the aperture S2 (surface 9) is 1.177 mm.An effective radius of the aperture S 3 (surface 12) is 1.444 mm.k = k-5,864600000E+000.0000000000E+000.0000000000E+000.0000000000E+00A4 =1.057080215E-013,352909140E-012,252958934E-01-7,616677002E-04A6 =-7,260001484E-02-5,051804934E-01-6,655723880E-01-1,162440390E-01A8 =5,540740430E-027,381591375E-011, 463994086E+005,231436175E-01A10 = =-3,696630547E-02-7,975433233E-01-2,368779077E+00-1,369556118E+00A12 =1,968883588E-025,848368946E-012,806769035E+002,631715889E+00A14 =-7,983683303E-03-2,500231209E-01-2,391775931E+00-3,640936754E+00A16 =2,409767135E-031,583341681E-021,444836684E+003,576880817E+00A18=-5,327434345E-045,332586808E-02-6,067143325E-01-2,457936685E+00A20 =8,448982182E-05-3,704771211E-021,711597009E-011,151141297E+00A22 =-9,293463686E-061,308320894E-02-3,054231010E-02-3,500892629E-01A24 =6,6797775836E-07-2,725069658E-033,064987846E-036,241765268E-02A26 =-2,792516104E-083,182221066E-04-1,286198621E-04-4,956433654E-03A28 =5,069385219E-10-1,611682431E-05--Surface # #781011k = k1,402840000E+010.0000000000E+00-4,800110000E+010.0000000000E+00A4 =1,1511301241E-03-8,316585965E-031,491719524E-03-2,372308307E-02A6 =-3,093468788E-03-2,389635808E-021,606813181E-03-3,320548616E-03A8 =3,38894662E-021,675298346E-01-2,619585530E-021,906368740E-02A10 = =-1,005396018E-01-6,255432590E-011,049895909E-01-3,864603008E-02A12 =1,809488154E-011,452377625E+00-2,228225556E-012,6433372605E-02A14 =-2,041202544E-01-2,205667479E+002,82376418E-012,274164160E-02A16 =1,387859612E-012,211149968E+00-2,273239173E-01-5,963321669E-02A18=-5,224297997E-02-1,440516352E+001,164108830E-015,121223851E-02A20 =8,314214725E-035,801641838E-01-3,637581673E-02-2,287439427E-02A22 =--1,2897055557E-016,222460999E-035,315567985E-03A24 =-1,174201214E-02-4,286164991E-04-5,048540822E-04Surface # #13141516k = k0.0000000000E+000.0000000000E+000.0000000000E+00-3.054320000E+00A4 =-2,263816775E-01-1,470731594E-01-7,899397868E-03-5,778155102E-03A6 =6,821867249E-011,312084038E-01-7,532117279E-05-3,295749448E-02A8 =-3,124405039E+00-2,06877878754E-01-1,36028486E-026,339499459E-02A10 = =9.990541893E+003,372577840E-012,962264220E-02-6,489384747E-02A12 =-2,182528622E+01-4,267671157E-01-3,684641918E-024,385583743E-02A14 =3,354980074E+014,012558882E-013,191579112E-02-2,056240102E-02A16 =-3,704042760E+01-2,779020457E-01-1,967594190E-026,920336416E-03A18=2,968045145E+011,414285713E-018,643303695E-03-1,701625339E-03A20 =-1,726737997E+01-5,258274526E-02-2,699642729E-033,061352859E-04A22 =7,212406895E+001,407498457E-025,93355306E-04-3,977555512E-05A24 =-2,105529704E+00-2,633818391E-03-8,949187810E-053,624561771E-06A26 =4,074720194E-013,260453311E-048,799899055E-06-2,192867589E-07A28 =-4,692576475E-02-2,391038783E-05-5,071696450E-077.897045015E-09A30 =2,432260240E-037,834276050E-071,297387124E-08-1,279491592E-10Surface # #1718k = k0.0000000000E+00-3,577400000E+00A4 =-1,011848334E-01-6,086138500E-02A6 =3,537812783E-022,5570690972E-02A8 =-1,188590753E-02-8,608285240E-03A10 = =3,532103721E-032,220419483E-03A12 =-7,942657213E-04-4,296677469E-04A14 =1,247797342E-046,204411972E-05A16 =-1,320401871E-05-6,686156912E-06A18=8,963269471E-075,366143458E-07A20 =-3,323856097E-08-3,182589754E-08A22 =5,556201460E-111,371909591E-09A24 =5,905305792E-11-4,169267906E-11A26 =-2,900966076E-128,452505194E-13A28 =6,305653771E-14-1,024699969E-14A30 =-5,490598335E-165,614021657E-17In the 3rd embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in Table 3C below are the same as those given in the 1st embodiment, with corresponding values for the 3rd embodiment; therefore, an explanation thereof will not be given again.Moreover, these parameters can be calculated from Table 3A and Table 3B as the following values, and satisfy the following conditions:f[mm]4,14(R7+R9) / (R7-R9)0,64Fno2,02(R11 + R12) / (R11 -R12)0,97HFOV [grade]62,6|R12 / R10|+|R12 / R11|0,13TL / f2,07T12 / CT10,22TL / ImgH1,36T12 / T230,20f / f61,39T12 / T450,24f / f7-1,10T12 / CT70,22f4 / f62,09T67 / CT51,68|f3 / f2|+|f7 / f2|0,86CT6 / CT32,31|f7 / f1|+|f7 / f3|0,57V363,4|R1 / R6|0,49V756,0(R1-R2) / (R1+R2)0,02V3 / V52,82(R1-R9) / (R1+R9)-0,10Y1R1 / ImgH0,40(R2-R9) / (R2+R9)-0,12|S5R1 / CT5|+|Ag5R2 / CT5|2,944. EmbodimentFIG. 7 is a schematic view of an image capturing unit according to the 4th embodiment of the present disclosure. FIG. 8 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 4th embodiment. In FIG. 7, the image acquisition unit 4 includes the imaging optical lens assembly (reference numeral of which is omitted) of the present disclosure and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a diaphragm S 1, a second lens element E 2, an aperture diaphragm ST, a third lens element E 3, a diaphragm S 2, a fourth lens element E 4, a diaphragm S 3, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7), with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has an inflection point. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof.The second lens element E2 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fourth lens element E4 is made of plastic material and has the object side and the image side both aspherical. The object side of the fourth lens element E4 has an inflection point.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has two inflection points. The image-side surface of the fifth lens element E5 has a critical point in an off-axis portion thereof.The sixth lens element E6 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E 6 has two inflection points. The image-side surface of the sixth lens element E6 has two inflection points. The object-side surface of the sixth lens element E6 has a critical point in an off-axis portion thereof.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has two inflection points. The object-side surface of the seventh lens element E7 has a critical point in an off-axis region thereof. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The detailed optical data of the 4th embodiment are shown in Table 4A and the data of aspherical surfaces are shown in Table 4B below.1Lens 1-5,6283(ASP)0,662Plastic is a plastic material1,54456,0-9,51266,6667(ASP)0,6013Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,4284Lens 22,8439(ASP)0,342Plastic is a plastic material1,58728,344,3253,0507(ASP)0,6176Apex.- AperturePlano-0,1357Lens 35,2814(ASP)0,431Plastic is a plastic material1,54456,026,6688,0665(ASP)0,0899Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,04710Lens 45,1227(ASP)0,921Plastic is a plastic material1,53456,04,2211-3,7675(ASP)-0,28412Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,76613Lens 5-6,6842(ASP)0,310Plastic is a plastic material1,66919,5-6,811414,5635(ASP)0,34215Lens 6119,1215(ASP)1,269Plastic is a plastic material1,54456,03,0516-1,6774(ASP)0,64317Lens 74,6660(ASP)0,607Plastic is a plastic material1,53456,0-3,98181,3950(ASP)1,12019FilterPlano0,210Glass Glass1,51764,2-20Plano0,49421Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S 1 (surface 3) is 1.430 mm.An effective radius of the aperture S2 (surface 9) is 1.156 mm.An effective radius of the aperture S 3 (surface 12) is 1.393 mm.Surface # #1245k = k-7.119220000E+000.0000000000E+000.0000000000E+000.0000000000E+00A4 =1,207640242E-012,570636124E-011,264437438E-01-3,09939462E-02A6 =-1,135836257E-01-3,726548303E-01-3,688755141E-013,43000197900E-01A8 =1,332662614E-018,708578583E-011, 033507786E+00-1,668070624E+00A10 = =-1,331265432E-01-1,919823859E+00-2,296104290E+005,495249339E+00A12 =9.88111118129E-023,213514129E+003,721284939E+00-1,235138165E+01A14 =-5,294780047E-02-3,870190416E+00-4,294245363E+001, 954279911E+01A16 =2,0447697E-023,328945128E+003,527661517E+00-2,199337840E+01A18=-5,681106971E-03-2,03462160E+00-2,050472099E+001, 751611951E+01A20 =1,123678675E-038,716308659, E-018.248034341E-01-9,648891233E+00A22 =-1,542419435E-04-2,542709013E-01-2,189002158E-013.493950108E+00A24 =1,395676534E-054,776856933E-023,460221627E-02-7,472825307E-01A26 =-7,483849744E-07-5,163087654E-03-2,476257612E-037.144190200E-02A28 =1,8009660642E-082,408619713E-04--Surface # #781011k = k1,71749060,E+010.0000000000E+00-2,666810000E+010.0000000000E+00A4 =7,199812363E-03-3,689,80841E-028,415327909E-03-1,307855446E-02A6 =-1,034055344E-011,346262546E-012,051797014E-02-1,407876598E-01A8 =4,585776306E-01-6,680489790E-01-1,383538627E-016,005060844E-01A10 = =-1,117586809E+002,299838675E+004,231523236E-01-1,552143777E+00A12 =1, 688302823E+00-5,303445590E+00-8,109397421E-012,586930012E+00A14 =-1,602219925E+008,333640437E+009.982006962E-01-2,881840810E+00A16 =9,217939569E-01-8,921641974E+00-7,907123835E-012,168126631E+00A18=-2,91809291E-016.386306806E+003,925373560E-01-1,088190527E+00A20 =3,818732965E-02-2,918167615E+00-1,143617538E-013,493511920E-01A22 =-7.682140814E-011,688935937E-02-6,494877083E-02A24 =--8,857212253E-02-8,705691535E-045,326146458E-03Surface # #13141516k = k0.0000000000E+000.0000000000E+000.0000000000E+00-2,993400000E+00A4 =-2,563577893E-01-1,270224173E-012,328135470E-03-5,686046272E-03A6 =9,373999718E-011,498000267E-02-3,320159360E-02-3,951717030E-02A8 =-4,577605509E+001,848492307E-014,438986797E-028,094142908E-02A10 = =1.521053491E+01-5,429440951E-01-2,582148414E-02-8 564879145E-02A12 =-3,450246531E+019,463215441E-01-1,229078579E-025,859313856E-02A14 =5,519122400E+01-1,128986336E+003,693930035E-02-2,753874519E-02A16 =-6,362221888E+019,615326468E-01-3,379852833E-029,249465272E-03A18=5,342920868E+01-5,936409592E-011,8205999104E-02-2,265434662E-03A20 =-3,269892774E+012,660952251E-01-6,453453716E-034,057741878E-04A22 =1,441992201E+01-8,567730434E-021,55065650E-03-5,250107635E-05A24 =-4,4600087632E+001,929932021E-02-2,503803244E-044,7666677558E-06A26 =9.175912715E-01-2,886130042E-032,607273540E-05-2,875021303E-07A28 =-1,127060973E-012,573685935E-04-1,581364218E-061.032804364E-08A30 =6.250178550E-03-1,035700663E-054,243229467E-08-1,670208535E-10Surface # #1718k = k0.0000000000E+00-3,894800000E+00A4 =-1,191231500E-01-6,32768222E-02A6 =6,285382871E-023,218373901E-02A8 =-3,1457191E-02-1,302888689E-02A10 = =1,1 80572883E-023,814104712E-03A12 =-3,111199640E-03-7,975077147E-04A14 =5,802058114E-041,202832832E-04A16 =-7,79935996E-05-1,321540852E-05A18=7,653837762E-061,061412719E-06A20 =-5,497467985E-07-6,202529347E-08A22 =2,861525394E-082,5975055634E-09A24 =-1,051160308E-09-7,563165927E-11A26 =2,583991694E-111,447434859E-12A28 =-3,813585705E-13-1,628381170E-14A30 =2,553944977E-158,106737984E-17In the 4th embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in Table 4C below are the same as those given in the 1st embodiment, with corresponding values for the 4th embodiment; therefore, an explanation thereof will not be given again.Moreover, these parameters can be calculated from Table 4A and Table 4B as the following values, and satisfy the following conditions:f [mm]4,01(R7+R9) / (R7-R9)-0,13Fno2,03(R11 + R12) / (R11 -R12)0,97HFOV [grade]57,6|R12 / R10|+|R12 / R11|0,13TL / f2,15T12 / CT10,26TL / lmgH1,39T12 / T230,36f / f61,31T12 / T450,36f / f7-1,01T12 / CT70,29f4 / f61,38T67 / CT52,07|f3 / f2|+|f7 / f2|0,69CT6 / CT32,94|f7 / f1|+|f7 / f3|0,57V356,0|R1 / R6|0,70V756,0(R1-R2) / (R1+R2)-1,18V3 / V52,87(R1-R9) / (R1+R9)-0,09Y1R1 / lmgH0,38(R2-R9) / (R2+R9)1,22|S5R1 / CT5|+|Ag5R2 / CT5|2,625. EmbodimentFIG. 9 is a schematic view of an image capturing unit according to the 5th embodiment of the present disclosure. FIG. 10 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 5th embodiment. In FIG. 9, the image acquisition unit 5 includes the imaging optical lens assembly (reference numeral of which is omitted) of the present disclosure and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a diaphragm S 1, a second lens element E 2, an aperture diaphragm ST, a third lens element E 3, a diaphragm S 2, a fourth lens element E 4, a diaphragm S 3, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7), with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has two inflection points. The image-side surface of the first lens element E1 has two inflection points. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof. The image-side surface of the first lens element E1 has a critical point in an off-axis portion thereof.The second lens element E2 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E 4 has an inflection point. The image-side surface of the fourth lens element E4 has an inflection point. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has two inflection points. The image-side surface of the fifth lens element E5 has two critical points in an off-axis portion thereof.The sixth lens element E6 having positive refractive power has an object-side surface concaved in a triaxial portion thereof and an image-side surface convexed in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E 6 has an inflection point. The image-side surface of the sixth lens element E6 has two inflection points.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has two inflection points. The object-side surface of the seventh lens element E7 has a critical point in an off-axis region thereof. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The detailed optical data of the 5th embodiment are shown in Table 5A and the data of aspherical surfaces are shown in Table 5B below.1Lens 1-4,3626(ASP)0,647Plastic is a plastic material1,54556,1-10,212-21,2414(ASP)0,6263Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,3954Lens 22,7608(ASP)0,393Plastic is a plastic material1,61525,349,7852,8699(ASP)0,4986Apex.- AperturePlano-0,0797Lens 37,4095(ASP)0,472Plastic is a plastic material1,54456,08,608-12,3941(ASP)0,0439Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,13110Lens 430,3510(ASP)0,752Plastic is a plastic material1,54456,05,9711-3,6050(ASP)-0,30512Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,72913Lens 5-8,6936(ASP)0,320Plastic is a plastic material1,68618,4-8,381417,2460(ASP)0,42615Lens 6-69,0658(ASP)1,200Plastic is a plastic material1,54456,03,3016-1,7593(ASP)0,57317Lens 74,7208(ASP)0,643Plastic is a plastic material1,53456,0-3,77181,3457(ASP)1,12019FilterPlano0,210Glass Glass1,51764,2-20Plano0,44621Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S1 (surface 3) is 1.480 mm.An effective radius of the aperture S2 (surface 9) is 1.180 mm.An effective radius of the aperture S 3 (surface 12) is 1.446 mm.k = k-5,7531600000E+000.0000000000E+000.0000000000E+000.0000000000E+00A4 =9,914446897E-021,942101481E-016,253175274E-021,209212930E-02A6 =-5,840227301E-02-1,775693652E-01-1,242281282E-01-2,500464872E-02A8 =3,918947353E-022,102075700E-012,021417515E-011,258472666E-01A10 = =-2,561249762E-02-8,076659796E-02-2,675400408E-01-2,718148310E-01A12 =1,464377551E-02-4,225779860E-012,704988768E-014,215208973E-01A14 =-6,7165685E-031,164931455E+00-1,898897390E-01-4,346585557E-01A16 =2,354481933E-03-1,587639022E+008,539503337E-022,816462729E-01A18=-6,130247662E-041,358028266E+00-2,199845818E-02-1,030398773E-01A20 =1,156114890E-04-7,683019288E-012,439439906E-031,599748123E-02A22 =-1,527236458E-052,873762669E-01--A24 =1,336164288E-06-6,830471648E-02--A26 =-6,941191696E-089.327064568E-03--A28 =1,618993572E-09-5,556073532E-04--Surface # #781011k = k1,742860000E+010.0000000000E+00-7,743220000E+000.0000000000E+00A4 =-1,736257161E-03-9,32828064E-032,224065858E-03-3,606083701E-02A6 =2,879118572E-021,083395899E-024,087629074E-03-2,714159089E-02A8 =-1,327443113E-01-5,136884989E-02-1,109734127E-021,140886880E-01A10 = =4,024051386E-011,5013325751E-012,3636266406E-02-2,371189576E-01A12 =-7,454559421E-01-2,656447407E-01-3,216398747E-022,967412856E-01A14 =8 572848078E-012,831482126E-012,365318816E-02-2,323159601E-01A16 =-5,983058333E-01-1,800721235E-01-8 993828506E-031,112186587E-01A18=2,312898867E-016,252249552E-021,209919240E-03-2,981720457E-02A20 =-3,812797374E-02-9,206234704E-038,995461376E-053,439579277E-03Surface # #13141516k = k0.0000000000E+000.0000000000E+000.0000000000E+00-2,874180000E+00A4 =-1,536968753E-01-1,128318397E-013,563311611E-03-1,136018478E-02A6 =6.287401390E-023,266744022E-02-2,302573533E-041,188494435E-02A8 =-1,110936224E-01-4,399585440E-04-3,668763886E-02-2,253171469E-02A10 = =2,738479828E-01-5,935779951E-037.257438786E-022,626591685E-02A12 =-4,555415462E-014,036306396E-03-8.022000242E-02-1,887099269E-02A14 =5.029080974E-01-3,460887211E-045,8858879589E-028,963896445E-03A16 =-3,695579725E-01-1,10940506E-03-2,989435522E-02-2,867803515E-03A18=1,786602944E-017.531201339E-041,064152676E-026,2372131297E-04A20 =-5,452007445E-02-2,271073265E-04-2,645959363E-03-9,230253834E-05A22 =9.508448872E-033,384412443E-054,498402237E-049,153962693E-06A24 =-7,212539138E-04-2,019211768E-06-4,979104303E-05-5,826815648E-07A26 =--3,229864824E-062,153404747E-08A28 =---9,305337732E-08-3,515228431E-10Surface # #1718k = k0.0000000000E+00-3,466110000E+00A4 =-1,006992227E-01-6,424312115E-02A6 =2,88951443E-022,728677176E-02A8 =-7,299228355E-03-9,513548150E-03A10 = =1,481976089E-032,556184438E-03A12 =-1,644061265E-04-5,153799385E-04A14 =-7,3981289668E-067.731119304E-05A16 =5,964591620E-06-8,610109067E-06A18=-1,053931623E-067.097652324E-07A20 =1,069700846E-07-4,296914321E-08A22 =-7,027492296E-091,879691244E-09A24 =3,047597534E-10-5,765918615E-11A26 =-8,463578845E-121,173978628E-12A28 =1,368614358E-13-1,422399594E-14A30 =-9,825162406E-167,749988504E-17In the 5th embodiment, the equation of the aspherical surface profiles of the above lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in Table 5C below are the same as those given in the 1st embodiment, with corresponding values for the 5th embodiment; therefore, an explanation thereof will not be given again.Moreover, these parameters can be calculated from Table 5A and Table 5B as the following values, and satisfy the following conditions:f [mm]4,04(R7+R9) / (R7-R9)0,55Fno2,03(R11 + R12) / (R11 -R12)1,05HFOV [grade]61,0|R12 / R10|+|R12 / R11|0,13TL / f2,09T12 / CT10,36TL / lmgH1,37T12 / T230,55f / f61,22T12 / T450,54f / f7-1,07T12 / CT70,36f4 / f61,81T67 / CT51,79|f3 / f2|+|f7 / f2|0,25CT6 / CT32,54|f7 / f1|+|f7 / f3|0,81V356,0|R1 / R6|0,35V756,0(R1-R2) / (R1+R2)-0,66V3 / V53,04(R1-R9) / (R1+R9)-0,33Y1R1 / ImgH0,40(R2-R9) / (R2+R9)0,42|S5R1 / CT5|+|Ag5R2 / CT5|2,646. EmbodimentFIG. 11 is a schematic view of an image capturing unit according to the 6th embodiment of the present disclosure. FIG. 12 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 6th embodiment. In FIG. 11, the image acquisition unit 6 includes the imaging optical lens assembly (reference numeral thereof is omitted) according to the present invention and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a diaphragm S 1, a second lens element E 2, an aperture diaphragm ST, a third lens element E 3, a diaphragm S 2, a fourth lens element E 4, a diaphragm S 3, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7), with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has two inflection points. The image-side surface of the first lens element E1 has two inflection points. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof. The image-side surface of the first lens element E1 has a critical point in an off-axis portion thereof.The second lens element E2 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E 4 has an inflection point. The image-side surface of the fourth lens element E4 has an inflection point. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has two inflection points. The image-side surface of the fifth lens element E5 has a critical point in an off-axis portion thereof.The sixth lens element E6 having positive refractive power has an object-side surface concaved in a triaxial portion thereof and an image-side surface convexed in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E 6 has an inflection point. The image-side surface of the sixth lens element E6 has two inflection points.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has two inflection points. The object-side surface of the seventh lens element E7 has a critical point in an off-axis region thereof. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The detailed optical data of the 6th embodiment are shown in Table 6A and the data of aspherical surfaces are shown in Table 6B below.1Lens 1-3,5763(ASP)0,611Plastic is a plastic material1,54556,1-14,192-7,0549(ASP)0,6053Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,4444Lens 23,0347(ASP)0,360Plastic is a plastic material1,61525,3-132,6652,7937(ASP)0,6276Ape.-AperturePlano-0,0947Lens 37,0922(ASP)0,497Plastic is a plastic material1,54456,07,928-10,7053(ASP)0,0769Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,09610Lens 429,1115(ASP)0,748Plastic is a plastic material1,54456,05,9411-3,6015(ASP)-0,29912Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,75113Lens 5-5,5471(ASP)0,325Plastic is a plastic material1,66919,5-6,351418,5237(ASP)0,32015Lens 6-195,4941(ASP)1,222Plastic is a plastic material1,54456,03,0916-1,6683(ASP)0,64317Lens 74,6697(ASP)0,617Plastic is a plastic material1,53456,0-3,74181,3357(ASP)1,00019FilterPlano0,210Glass Glass1,51764,2-20Plano0,56421Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S 1 (surface 3) is 1.545 mm.An effective radius of the aperture S2 (surface 9) is 1.185 mm.An effective radius of the aperture S 3 (surface 12) is 1.440 mm.k = k-7,598710000E+000.0000000000E+000.0000000000E+000.0000000000E+00A4 =1,152108685E-012,793086598E-011,373023758E-015,262744722E-03A6 =-8,020034259E-02-3,198854040E-01-3,798000939E-014,603934827E-02A8 =5,982512786E-023,709099784E-019,447966532E-01-2,389278920E-01A10 = =-4,116448760E-02-2,246063622E-01-1,875540883E+001, 063121397E+00A12 =2,367214480E-02-1,973430243E-012,776173450E+00-2,828386233E+00A14 =-1,062893053E-026,57866173E-01-2,970637287E+004,961738098E+00A16 =3,598612249E-03-8 03712309E-012,274519678E+00-5,923485639E+00A18=-8,994295779E-045,943980088E-01-1,230760905E+004,848958098E+00A20 =1,624583306E-04-2,883138453E-014,586324883E-01-2,683081612E+00A22 =-2,054805810E-059,208618562E-02-1,118653343E-019.59631028E-01A24 =1,722705842E-06-1,858426711E-021,60690688E-02-2,003861946E-01A26 =-8,588678959E-082,132179760E-03-1,030029527E-031,858028983E-02A28 =1,926197994E-09-1,047115531E-04--Surface # #781011k = k1,98600000E+010.0000000000E+008,094280000E-010.0000000000E+00A4 =8.176918010E-04-1,112143702E-028,045973901E-03-3,430058560E-02A6 =3,376311002E-027.360823547E-02-4,106018562E-02-1,292766219E-02A8 =-1,363868794E-01-4,927234746E-011,9919153E-014,617792631E-02A10 = =3,876939974E-012,030113784E+00-6,036772268E-01-5,796681034E-02A12 =-6,954444767E-01-5,354692077E+001,208306104E+00-1,338555864E-02A14 =7,807968811E-019.308050256E+00-1,652404060E+001,300842128E-01A16 =-5,347633652E-01-1,078130014E+011.542015150E+00-1,760572231E-01A18=2,036399051E-018.224798703E+00-9,643101740E-011,219113209E-01A20 =-3,321023991E-02-3,965243325E+003,860227345E-01-4,752129599, E-02A22 =-1, 094100156E+00-8,938026162E-029,810914432E-03A24 =--1,316092208E-019.113335069E-03-8 196667984E-04Surface # #13141516k = k0.0000000000E+000.0000000000E+000.0000000000E+00-2,961240000E+00A4 =-1,892238390E-01-1,297670226E-01-7,385207010E-04-2,123693861E-02A6 =2,512263596E-015,669632557E-02-7,127785487E-031,810663604E-02A8 =-1,035298581E+00-3,799254619E-02-6,354707917E-03-2,019397460E-02A10 = =3,580883912E+007, 197244762E-021,388001324E-031,985609237E-02A12 =-8,533495786E+00-1,137807967E-012,493513243E-02-1,374016640E-02A14 =1,427225022E+011,186726293E-01-4,106635119E-026,763711057E-03A16 =-1,710700860E+01-8,256124614E-023,407266807E-02-2,334056047E-03A18=1,486439209E+013.857340025E-02-1,786640012E-025,609818670E-04A20 =-9,370496892E+00-1,177992331E-026,333814698E-03-9,386856610E-05A22 =4,237904141E+002,116783914E-03-1,545763713E-031,086353183E-05A24 =-1,338146959E+00-1,288945518E-042,566782319E-04-8,502465823E-07A26 =2,796668625E-01-2,812259251E-05-2,774671238E-054,276810979E-08A28 =-3,470959551E-026,339261809E-061,762167169E-06-1,238961364E-09A30 =1,933744455E-03-3,944276688E-07-4,989826647E-081,552037458E-11Surface # #1718k = k0.0000000000E+00-3,9646706708E+00A4 =-1,110171347E-01-5,916437238E-02A6 =4,414279484E-022,5127384E-02A8 =-1,505115574E-02-8,149104887E-03A10 = =3,965357646E-031,935936493E-03A12 =-7,532639058E-04-3,361581318E-04A14 =9.971188920E-054,278197554E-05A16 =-8,888947820E-06-3,994313557E-06A18=4,927482155E-072,721010717E-07A20 =-1,199136225E-08-1,332118871E-08A22 =-4,049569092E-104,547512556E-10A24 =4,610798371E-11-1,022589363E-11A26 =-1,752721971E-121,347854937E-13A28 =3,306740084E-14-7,551588231E-16A30 =-2,585666406E-16-6,857783866E-19In the 6th embodiment, the equation of the aspherical surface profiles of the above lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in Table 6C below are the same as those given in the 1st embodiment, with corresponding values for the 6th embodiment; therefore, an explanation thereof will not be given again.Moreover, these parameters can be calculated from Table 6A and Table 6B as the following values, and satisfy the following conditions:f [mm]4,01(R7+R9) / (R7-R9)0,68Fno2,03(R11 + R12) / (R11 -R12)1,02HFOV [grade]61,7|R12 / R10|+|R12 / R11|0,10TL / f2,10T12 / CT10,26TL / lmgH1,35T12 / T230,30f / f61,30T12 / T450,36f / f7-1,07T12 / CT70,26f4 / f61,92T67 / CT51,98|f3 / f2|+|f7 / f2|0,09CT6 / CT32,46|f7 / f1|+|f7 / f3|0,74V356,0|R1 / R6|0,33V756,0(R1-R2) / (R1+R2)-0,33V3 / V52,87(R1-R9) / (R1+R9)-0,22Y1R1 / lmgH0,40(R2-R9) / (R2+R9)0,12|S5R1 / CT5|+|Ag5R2 / CT5|2,777. EmbodimentFIG. 13 is a schematic view of an image capturing unit according to the 7th embodiment of the present disclosure. FIG. 14 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 7th embodiment. In FIG. 13, the image acquisition unit 7 includes the imaging optical lens assembly (reference numeral of which is omitted) of the present disclosure and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a diaphragm S 1, a second lens element E 2, an aperture diaphragm ST, a third lens element E 3, a diaphragm S 2, a fourth lens element E 4, a diaphragm S 3, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7), with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has two inflection points. The image-side surface of the first lens element E1 has two inflection points. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof. The image-side surface of the first lens element E1 has a critical point in an off-axis portion thereof.The second lens element E2 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E 4 has an inflection point. The image-side surface of the fourth lens element E4 has an inflection point. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has two inflection points. The image-side surface of the fifth lens element E5 has two critical points in an off-axis portion thereof.The sixth lens element E6 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E6 has three inflection points. The image-side surface of the sixth lens element E6 has two inflection points. The object-side surface of the sixth lens element E6 has a critical point in an off-axis portion thereof.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has two inflection points. The object-side surface of the seventh lens element E7 has two critical points in an off-axis portion thereof. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The detailed optical data of the 7th embodiment are shown in Table 7A and the data of the aspherical surfaces are shown in Table 7B below.1Lens 1-3,6376(ASP)0,618Plastic is a plastic material1,54456,0-9,912-11,8635(ASP)0,6203Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,3974Lens 23,2662(ASP)0,375Plastic is a plastic material1,61525,379,4853,3470(ASP)0,6036Ape.-AperturePlano-0,1137Lens 36,0042(ASP)0,480Plastic is a plastic material1,54456,08,288-17,5385(ASP)0,0829Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,10210Lens13,8985(ASP)0,704Plastic is a plastic material1,54456,05,9711-4,1625(ASP)-0,29212Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,75813Lens 5-7,6405(ASP)0,300Plastic is a plastic material1,68618,4-7,691417,3035(ASP)0,37815Lens 679,6010(ASP)1,250Plastic is a plastic material1,54456,03,0216-1,6702(ASP)0,54717Lens 74,6440(ASP)0,645Plastic is a plastic material1,55144,8-3,81181,3752(ASP)1,12019FilterPlano0,210Glass Glass1,51764,2-20Plano0,30021Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S1 (surface 3) is 1.589 mm.An effective radius of the aperture S2 (surface 9) is 1.148 mm.An effective radius of the aperture S 3 (surface 12) is 1.412 mm.k = k-6,777150000E+000.0000000000E+000.0000000000E+000.0000000000E+00A4 =1,145888783E-012,017621381E-019, 514335814E-021,912345202E-02A6 =-8,058019656E-02-7,331875566E-02-2,517113370E-01-1,601332580E-02A8 =5,987832169E-02-2,499285894E-015,757022442E-01-4,073063946E-03A10 = =-4,011804171E-029,195929021E-01-9,030983240E-015,606750237E-01A12 =2,240962694E-02-1,688346981E+008,852899584E-01-2,266320406E+00A14 =-9,956459557E-032,063829817E+00-4,030192874E-014,940077665E+00A16 =3,413361085E-03-1,804574655E+00-1,315802123E-01-6,839830929E+00A18=-8 798429949E-041,155993178E+003,111865699E-016,267331193E+00A20 =1,657481735E-04-5,4011141060E-01-2,027745336E-01-3,787805099E+00A22 =-2,197735531E-051,786720830E-016.928001834E-021, 449886432E+00A24 =1,933189599E-06-3,939829359E-02-1,252739941E-02-3,181408413E-01A26 =-1,009282771E-075,155025778E-039.489355212E-043,047714851E-02A28 =2,361903644E-09-3,005558841E-04--Surface # #781011k = k1,903140000E+010.0000000000E+00-1,282720000E+010.0000000000E+00A4 =4,746879351E-03-5,479983080E-036,773524111E-03-2,977723447E-02A6 =5,330950189E-038.198732557E-03-3,140990311E-028,580726484E-03A8 =-2,059220261E-03-3,339549278E-021,672988330E-01-1,79420821E-02A10 = =-1,055545057E-041,598734502E-01-5,814340124E-013,494102044E-02A12 =2,851124925E-03-5,157725578E-011, 341167808E+00-5,602020569E-02A14 =-7,269188021E-031, 081457824E+00-2,084090443E+005,630742759E-02A16 =3,657937306E-03-1,486445338E+002,177065771E+00-2,749897462E-02A18=5,265095581E-041,32311010396E+00-1,505922720E+00-1,447377760E-03A20 =-9,154750478E-04-7,352883778E-016,605616872E-018,567624463E-03A22 =-2,318742951E-01-1,662928667E-01-3,857968407E-03A24 =--3,173517774E-021,828615544E-025,823904596E-04Surface # #13141516k = k0.0000000000E+000.0000000000E+000.0000000000E+00-2,918910000E+00A4 =-2,554619355E-01-1,689217271E-01-2,187165411E-02-5,266814033E-03A6 =8.584508905E-012,239968450E-013,198954544E-02-1,824724304E-02A8 =-3,774192742E+00-3,967750943E-01-6,26974590E-022,744046235E-02A10 = =1,180461833E+015,879515778E-018,505403657E-02-2,192006648E-02A12 =-2,572767979E+01-6,404720724E-01-8,049450419E-021,184411673E-02A14 =3,987260601E+015,010241592E-015,485778655E-02-4,569396966E-03A16 =-4,468057808E+01-2,759049764E-01-2,715233716E-021,361195084E-03A18=3,651802458E+011,027152664E-019,770924249E-03-3,262731399E-04A20 =-2,175456791E+01-2,301560089E-02-2,545283129E-036,153897034E-05A22 =9.334636238E+001,590700791E-034,736117847E-04-8,651202349E-06A24 =-2,807163589E+006,998342590E-04-6,121983407E-058 550694468E-07A26 =5,609341912E-01-2,355697354E-045,210653800E-06-5,551397220E-08A28 =-6,68316638E-023,087047311E-05-2,619556266E-072,115121264E-09A30 =3,589188328E-03-1,58323540E-065,8771160E-09-3,57720695E-11Surface # #1718k = k0.0000000000E+00-3,009940000E+00A4 =-8.082819256E-02-6,585231523E-02A6 =1,728973062E-022,676080848E-02A8 =-3,490070937E-03-8,990235568E-03A10 = =8,724441094E-042,356126377E-03A12 =-1,980865439E-04-4,655431439E-04A14 =3,110215706E-056,84986393E-05A16 =-3,054824330E-06-7,478437922E-06A18=1,620702206E-076,035996920E-07A20 =-7,853038096E-10-3,571841218E-08A22 =-5,292710226E-101,524075962E-09A24 =3,945207876E-11-4,54872374E-11A26 =-1,423848591 E-128,986124296E-13A28 =2,70793866E-14-1,053275843E-14A30 =-2,178649647E-165,535048524E-17In the 7th embodiment, the equation of the aspherical surface profiles of the above lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in Table 7C below are the same as those given in the 1st embodiment, with corresponding values for the 7th embodiment; therefore, an explanation thereof will not be given again.Moreover, these parameters can be calculated from Table 7A and Table 7B as the following values, and satisfy the following conditions:f [mm]3,68(R7+R9) / (R7-R9)0,29Fno1,95(R11 + R12) / (R11 -R12)0,96HFOV [grade]64,0|R12 / R10|+|R12 / R11|0,12TL / f2,26T12 / CT10,36TL / lmgH1,32T12 / T230,46f / f61,22T12 / T450,48f / f7-0,96T12 / CT70,35f4 / f61,97T67 / CT51,82|f3 / f2|+|f7 / f2|0,15CT6 / CT32,60|f7 / f1|+|f7 / f3|0,85V356,0|R1 / R6|0,21V744,8(R1-R2) / (R1+R2)-0,53V3 / V53,04(R1-R9) / (R1+R9)-0,35Y1R1 / ImgH0,40(R2-R9) / (R2+R9)0,22|S5R1 / CT5|+|Ag5R2 / CT5|2,728. EmbodimentFIG. 15 is a schematic view of an image capturing unit according to the 8th embodiment of the present disclosure. FIG. 16 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image acquisition unit according to the 8th embodiment. In FIG. 15, the image acquisition unit 8 includes the imaging optical lens assembly (reference numeral thereof is omitted) of the present disclosure and an image sensor IS. The optical lens assembly for imaging includes, in order from an object side to an image side along a light path, a first lens element E 1, a second lens element E 2, a diaphragm S 1, a third lens element E 3, an aperture diaphragm ST, a fourth lens element E 4, a diaphragm S 2, a fifth lens element E 5, a sixth lens element E 6, a seventh lens element E 7, a filter E 8, and an image surface IMG. The imaging optical lens assembly includes seven lens elements (E1, E2, E3, E4, E5, E6 and E7), with no additional lens element interposed between each of the adjacent seven lens elements.The first lens element E1 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the first lens element E 1 has two inflection points. The image-side surface of the first lens element E1 has two inflection points. The object-side surface of the first lens element E1 has a critical point in an off-axis region thereof. The image-side surface of the first lens element E1 has a critical point in an off-axis portion thereof.The second lens element E2 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the second lens element E 2 has an inflection point. The image-side surface of the second lens element E2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has an inflection point.The fourth lens element E4 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E 4 has an inflection point. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The fifth lens element E5 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fifth lens element E5 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fifth lens element E 5 has an inflection point. The image-side surface of the fifth lens element E5 has two inflection points. The image-side surface of the fifth lens element E5 has a critical point in an off-axis portion thereof.The sixth lens element E6 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The sixth lens element E6 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the sixth lens element E 6 has two inflection points. The image-side surface of the sixth lens element E6 has two inflection points. The object-side surface of the sixth lens element E6 has a critical point in an off-axis portion thereof.The seventh lens element E7 having negative refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The seventh lens element E7 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the seventh lens element E 7 has two inflection points. The image-side surface of the seventh lens element E7 has two inflection points. The object-side surface of the seventh lens element E7 has a critical point in an off-axis region thereof. The image-side surface of the seventh lens element E7 has a critical point in an off-axis portion thereof.The filter E8 is made of glass material and is disposed between the seventh lens element E7 and the image surface IMG, and has no influence on the focal length of the imaging optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the optical lens assembly for imaging.The detailed optical data of the 8th embodiment are shown in Table 8A and the data of aspherical surfaces are shown in Table 8B below.1Lens 1-3,9533(ASP)0,611Plastic is a plastic material1,53456,0-18,102-7,0461(ASP)0,1983Lens 23,3255(ASP)0,360Plastic is a plastic material1,58728,3-46,2642,8441(ASP)0,6225Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano-0,1106Lens 37,0966(ASP)0,528Plastic is a plastic material1,54456,08,237-11,8213(ASP)0,0718Ape.-AperturePlano0,1409Lens 417,5618(ASP)0,664Plastic is a plastic material1,54456,06,4210-4,3033(ASP)-0,24311Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlano0,80712Lens 5-5,5592(ASP)0,255Plastic is a plastic material1,66919,5-7,171335,6616(ASP)0,27614Lens 652,1996(ASP)1,350Plastic is a plastic material1,54456,03,0415-1,6949(ASP)0,57716Lens 74,6663(ASP)0,602Plastic is a plastic material1,54456,0-3,84171,3772(ASP)1,12018FilterPlano0,210Glass Glass1,51764,2-19Plano0,43420Image ImagePlano-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S1 (surface 5) is 1.229 mm.An effective radius of the aperture S 2 (surface 11) is 1.425 mm.k = k-7,801170000E+004,7465600000E+003,438260000E-013,170070000E-01A4 =1,109020565E-012,385157566E-011,297003745E-011,539467765E-02A6 =-7,562963440E-02-1,907949620E-01-3,268024276E-01-3,098418421E-03A8 =5,645904745E-029.872990453E-027,31514553E-01-4,736537272E-02A10 = =-3,849,203713E-029.724258544E-02-1,332781986E+003,994838790E-01A12 =2,190674228E-02-2,841308066E-011, 835514416E+00-1,138803976E+00A14 =-9,832169543E-033,246840674E-01-1,805874413E+002,074507977E+00A16 =3,380172872E-03-2,212594088E-011,239332144E+00-2,615316851E+00A18=-8,722840335E-049.48020591E-02-5,816437270E-012.287168016E+00A20 =1,650966250E-04-2,440793968E-021,804768164E-01-1,350880864E+00A22 =-2,213768333E-052,987278647E-03-3,478544678E-025,097015462E-01A24 =1,983920920E-061,092331799E-043,674437107E-03-1,101483078E-01A26 =-1,062728965E-07-7,707266301E-05-1,546715028E-041,031739372E-02A28 =2,567277666E-096,666730924E-06--Surface # #67910k = k2,230580000E+01-1,852870000E+00-4,515480000E+01-1,418740000E+00A4 =1,051335138E-03-5,210933219E-036,264187884E-04-2,556893937E-02A6 =3,006926798E-02-2,667624728E-021,58796886E-02-2,888767760E-02A8 =-1,054975807E-012,263369474E-01-7,997823673E-021,303572811E-01A10 = =2,701924857E-01-1.022530049E+002,468483885E-01-3,869436785E-01A12 =-4,365033698E-012,852616551E+00-4,865193764E-017,347642467E-01A14 =4,44999329E-01-5,152161897E+006.0728840522E-01-9,308649916E-01A16 =-2,788396245E-016,124461597E+00-4,71005785E-017.968112480E-01A18=9.764080363E-02-4,757515404E+002,09454134E-01-4,549266421E-01A20 =-1,474082829E-022,322849898E+00-4,025601578E-021,657722418E-01A22 =--6,467208201E-01-2,822359613E-03-3,482606119E-02A24 =-7,828148376E-021,708026995E-033,206519508E-03Surface # #12131415k = k-2,349900000E+009.0000000000E+013,613940000E+01-2,9267409E+00A4 =-2,207923352E-01-1,542030163E-01-1,468750541E-02-9,867291885E-03A6 =6,012575418E-011,588844420E-01-1,419330576E-02-1,721148876E-02A8 =-2,524132050E+00-2,253108890E-014,824853846E-022,893599908E-02A10 = =7,558209616E+002,281975346E-01-8,490070997E-02-2,269496886E-02A12 =-1,557847295E+01-4,155460694E-021,038333413E-011,127992449E-02A14 =2,250337451E+01-2,5699088667E-01-8,989448333E-02-3,503495568E-03A16 =-2,315861470E+014,301449969E-015,581295768E-026,350559333E-04A18=1,712648970E+01-3,73951765E-01-2,504815430E-02-4,438449342E-05A20 =-9.089723075E+002,081702273E-018,117306552E-03-7,664893789E-06A22 =3,416462425E+00-7,790893334E-02-1,877213317E-032,50310101690E-06A24 =-8,825262026E-011,958615719E-023,015678019E-04-3,271354714E-07A26 =1,478812345E-01-3,180843934E-03-3,192824099E-052,406688544E-08A28 =-1,431302618E-023,020768524E-042,000765374E-06-9,767522895E-10A30 =5,964649442E-04-1,27577982E-05-5,615249096E-081,711378381E-11Surface # #1617k = k1,725860000E-04-3,627000000E+00A4 =-1,010221126E-01-5,739951128E-02A6 =3,264175937E-022,235933159E-02A8 =-9,378799255E-03-6,969531271E-03A10 = =2,440520857E-031,6514744519E-03A12 =-5,125077272E-04-2,885254838E-04A14 =7,793228661E-053,659577606E-05A16 =-8,045412095E-06-3,337644708E-06A18=5,257890388E-072,152564335E-07A20 =-1,744700025E-08-9,450107863E-09A22 =-1,746034883E-102,566903751E-10A24 =4,553639793E-11-2,984331135E-12A26 =-2,037473810E-12-4,236321118E-14A28 =4,274185260E-141,830536160E-15A30 =-3,646156931E-16-1,766315214E-17In the 8th embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in Table 8C below are the same as those given in the 1st embodiment, with corresponding values for the 8th embodiment; therefore, an explanation thereof will not be given again.Moreover, these parameters can be calculated from Table 8A and Table 8B as the following values, and satisfy the following conditions:f [mm]3,99(R7+R9) / (R7-R9)0,52Fno2,00(R11 + R12) / (R11 -R12)0,94HFOV [grade]58,7|R12 / R10|+|R12 / R11|0,08TL / f2,12T12 / CT10,32TL / lmgH1,38T12 / T230,39f / f61,31T12 / T450,35f / f7-1,04T12 / CT70,33f4 / f62,11T67 / CT52,26|f3 / f2|+|f7 / f2|0,26CT6 / CT32,56|f7 / f1|+|f7 / f3|0,68V356,0|R1 / R6|0,33V756,0(R1-R2) / (R1+R2)-0,28V3 / V52,87(R1-R9) / (R1+R9)-0,17Y1R1 / lmgH0,41(R2-R9) / (R2+R9)0,12|S5R1 / CT5|+|Ag5R2 / CT5|3,629. EmbodimentFIG. 17 is a perspective view of an image capturing unit according to the 9th embodiment of the present disclosure. In this embodiment, an image capturing unit 100 is a camera module including a lens unit 101, a driving device 102, an image sensor 103, and an image stabilizer 104. The lens unit 101 includes the imaging optical lens assembly disclosed in the first embodiment, a barrel, and a holding member (reference numerals of which are omitted) for holding the imaging optical lens assembly. However, the lens unit 101 may alternatively be provided with the optical lens assembly for imaging disclosed in other embodiments of the present disclosure, and the present disclosure is not limited thereto. The imaging light is converged in the lens unit 101 of the image capturing unit 100 to form an image with the driving device 102 used for image focusing on the image sensor 103, and the formed image is then digitally transmitted to another electronic component for further processing.The drive device 102 may have an autofocus function, and the drive device 102 may use various drive configurations, such as voice coil motors (VCM), microelectromechanical systems (MEMS), piezoelectric systems, and shape memory alloys. The driving device 102 is advantageous in obtaining a better imaging position for the lens unit 101 so that a clear image of the imaged object can be captured by the lens unit 101 at different object distances. The image sensor 103 (for example, CMOS or CCD), which may have high photosensitivity and low noise, is disposed on the image surface of the optical lens assembly for imaging to provide higher image quality.The image stabilizer 104, for example, an accelerometer, gyro sensor, and Hall effect sensor, is configured to cooperate with the drive device 102 to provide optical image stabilization (OIS). The driving device 102 cooperating with the image stabilizer 104 is advantageous for compensating the rocking and tilting motion of the lens unit 101 to reduce motion blur during exposure. In some cases, the compensation may be provided by electronic image stabilization (EIS) with image processing software, thereby improving image quality in dynamic scenarios or in poor lighting conditions.10. EmbodimentFIG. 18 is a perspective view of an electronic device according to the 10th embodiment of the present disclosure, FIG. 19 is another perspective view of the electronic device in FIG. 18, and FIG. 20 is a block diagram of the electronic device in FIG. 18.In this embodiment, an electronic device 200 is a smartphone including the image capturing unit 100 according to the 9th embodiment, an image capturing unit 100 a, an image capturing unit 100 b, an image capturing unit 100 c, an image capturing unit 100 d, an image capturing unit 100 e, a flash module 201, a focusing aid module 202, an image signal processor 203, a display module 204, and an image software processor 205. The image capturing unit 100, the image capturing unit 100 a, and the image capturing unit 100 bare disposed on the same side of the electronic device 200, and each of the image capturing units 100, 100 a, and 100 bhas a single focal point. The focusing aid module 202 may be a laser range finder or a Time of Flight (ToF) module, but the present disclosure is not limited thereto. The image capturing unit 100 c, the image capturing unit 100 d, the image capturing unit 100 e, and the display module 204 are disposed on the opposite side of the electronic device 200, and the display module 204 may be a user interface that allows the image capturing units 100 c, 100 d, and 100 eto serve as front-facing cameras of the electronic device 200 for capturing selfies, but the present disclosure is not limited thereto. Further, each of the image capturing units 100 a, 100 b, 100 c, 100 d, and 100 emay include the optical lens assembly for imaging of the present disclosure and have a similar configuration to the image capturing unit 100. Specifically, each of the image capturing units 100 a, 100 b, 100 c, 100 d, and 100 emay include a lens unit, a driving device, an image sensor, and an image stabilizer, and also include an optical path deflection element for deflecting the optical path. In addition, each of the lens units of the image capturing units 100 a, 100 b, 100 c, 100 d, and 100 emay include the imaging optical lens assembly of the present disclosure, a barrel, and a holding member for holding the imaging optical lens assembly.The image capturing unit 100 is a wide-angle image capturing unit, the image capturing unit 100 ais a tele image capturing unit having an optical path deflection function, the image capturing unit 100 bis an ultra wide angle image capturing unit, the image capturing unit 100 cis a wide-angle image capturing unit, the image capturing unit 100 dis an ultra wide angle image capturing unit, and the image capturing unit 100 eis a ToF image capturing unit. In this embodiment, the image capturing units 100, 100 a, and 100 bhave different fields of view, so that the electronic device 200 may have different magnification ratios to meet the requirement of the optical zoom functionality. Moreover, the image acquisition unit 100 emay determine depth information of the imaged object. Moreover, the light deflection configuration of the image capturing unit 100 amay be similar to, for example, any of the configurations shown in FIGS. 26 to 28, which may be referred to in the above descriptions of FIGS. 26 to 28, and the details thereof will not be given again. Moreover, each of the image capturing units 100, 100 b, 100 c, 100 d, and 100 emay also have a light deflection configuration similar to, for example, any of the configurations shown in FIGS. 26 to 28, which may be referred to in the above descriptions of FIGS. 26 to 28, and the details thereof will not be given again. In this embodiment, the electronic device 200 includes a plurality of image capturing units 100, 100 a, 100 b, 100 c, 100 d, and 100 e, but the present disclosure is not limited to the number and arrangement of the image capturing units.When a user captures images of an object 206, the light beams are converged in the image capturing unit 100, the image capturing unit 100 a, or the image capturing unit 100 bto generate images, and the flash module 201 is activated for light assistance. The focusing aid module 202 captures the object distance of the imaged object 206 to achieve fast autofocus. The image signal processor 203 is configured to optimize the captured image to improve image quality. The light beam emitted by the focusing aid module 202 may be either conventional infrared light or laser light. In addition, the light beams may be converged in the image capturing unit 100 c, 100 d, or 100 eto generate images. The display module 204 may include a touch screen, and the user may interact with the display module 204 and the image software processor 205, which has multiple functions for capturing images and performing image processing. Alternatively, the user may capture images via a physical key. The image processed by the image software processor 205 may be displayed on the display module 204.11. EmbodimentFIG. 21 is a schematic view of an electronic device according to the 11th embodiment of the present disclosure, and FIG. 22 is another schematic view of the electronic device in FIG. 21.In this embodiment, an electronic device 300 is a smartphone including the image capturing unit 100 as disclosed in the 9th embodiment, an image capturing unit 100 f, an image capturing unit 100 g, an image capturing unit 100 h, and a display module 304. As shown in FIG. 21, the image capturing unit 100, the image capturing unit 100 f, and the image capturing unit 100 gare disposed on the same side of the electronic device 300, and each of the image capturing units 100, 100 f, and 100 ghas a single focal point. As shown in FIG. 22, the image capturing unit 100 hand the display module 304 are disposed on the opposite side of the electronic device 300, whereby the image capturing unit 100 hmay serve as a front-facing camera of the electronic device 300 for capturing selfies, but the present disclosure is not limited thereto. Further, each of the image capturing units 100 f, 100 g, and 100 hmay include the optical lens assembly for imaging of the present disclosure and have a similar configuration to the image capturing unit 100. Specifically, each of the image acquisition units 100 f, 100 g, and 100 hmay include a lens unit, a driving device, an image sensor, and an image stabilizer. In addition, each lens unit of the image capturing units 100 f, 100 g, and 100 hmay include the imaging optical lens assembly of the present disclosure, a barrel, and a holding member for holding the imaging optical lens assembly.The image capturing unit 100 is a wide-angle image capturing unit, the image capturing unit 100 fis a tele image capturing unit, the image capturing unit 100 gis an ultra-wide-angle image capturing unit, and the image capturing unit 100 his a wide-angle image capturing unit. In this embodiment, the image capturing units 100, 100 f, and 100 ghave different fields of view, so that the electronic device 300 may have different magnification ratios to meet the requirement of the optical zoom functionality. In this embodiment, the electronic device 300 includes a plurality of image capturing units 100, 100 f, 100 g, and 100 h, but the present disclosure is not limited to the number and arrangement of the image capturing units.12. EmbodimentFIG. 23 is a perspective view of an electronic device according to the 12th embodiment of the present disclosure.In this embodiment, an electronic device 400 is a smartphone including the image capturing unit 100 according to the 9th embodiment, an image capturing unit 100 i, an image capturing unit 100 j, an image capturing unit 100 k, an image capturing unit 100 m, an image capturing unit 100 n, an image capturing unit 100 p, an image capturing unit 100 q, an image capturing unit 100 r, a flash module 401, a focusing aid module, an image signal processor, a display module, and an image software processor (not shown). The image capturing units 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, and 100 rare arranged on the same side of the electronic device 400, while the display module is arranged on the opposite side of the electronic device 400. Further, each of the image capturing units 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, and 100 rmay include the optical lens assembly for imaging of the present disclosure and have a similar configuration to the image capturing unit 100, and the details thereof are not re-stated.The image capturing unit 100 is a wide-angle image capturing unit, the image capturing unit 100 iis a tele image capturing unit having an optical path deflection function, the image capturing unit 100 jis a tele image capturing unit having an optical path deflection function, the image capturing unit 100 kis a wide-angle image capturing unit, the image capturing unit 100 mis an ultra wide-angle image capturing unit, the image capturing unit 100 nis an ultra wide-angle image capturing unit, the image capturing unit 100 pis a tele image capturing unit, the image capturing unit 100 qis a tele image capturing unit, and the image capturing unit 100 ris a ToF image capturing unit. In this embodiment, the image capturing units 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, and 100 qhave different fields of view, so that the electronic device 400 may have different magnification ratios to meet the requirement of the optical zoom functionality. Moreover, the image acquisition unit 100 rmay determine depth information of the imaged object. Moreover, the light deflection configuration of the image capturing units 100 iand 100 jmay be similar to, for example, any of the structures shown in FIGS. 26 to 28, which may be referred to with reference to the above descriptions of FIGS. 26 to 28, and the details thereof will not be given again. In this embodiment, the electronic device 400 includes a plurality of image capturing units 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, and 100 r, but the present disclosure is not limited to the number and arrangement of the image capturing units. When a user captures images of an object, the light beams are converged in the image capturing unit 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, or 100 rto generate images, and the flash module 401 is activated for light assistance. Further, the following processes are performed in a similar manner to the above-mentioned embodiments, and the details thereof will not be given again.The smartphones in the embodiments are only examples to show the image acquisition unit of the present disclosure in an electronic device, and the present disclosure is not limited thereto. The image capturing unit may be optionally applied to movable focus optical systems. Further, the optical lens assembly for imaging the image capturing unit has a good aberration correction capability and a high image quality, and can be used on 3D image capturing applications (three-dimensional image capturing applications) in products such as digital cameras, mobile devices, digital tablets, smart TVs, network monitors, dashboard cameras, vehicle backup cameras, multi-camera devices, image recognition systems, motion sensor input devices, unmanned aerial vehicles, portable devices, portable video recorders, and other electronic imaging devices.The foregoing description has been described for purposes of explanation with reference to specific embodiments. It should be noted that TABLES 1A-8C show different data of the various embodiments; however, the data of the various embodiments were obtained from experiments. The embodiments were chosen and described in order to best explain the principles of the disclosure and its practical applications, to enable others skilled in the art to best utilize the disclosure and various embodiments with various modifications as are suited to the particular use contemplated. The above-illustrated embodiments and the accompanying drawings are exemplary and are not intended to be exhaustive or to limit the scope of the present disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above.

Claims

An optical lens assembly for imaging comprising seven lens elements (E1, E2, E3, E4, E5, E6 and E7), wherein the seven lens elements (E1, E2, E3, E4, E5, E6 and E7) are, in order from an object side to an image side along an optical path, a first lens element (E1), a second lens element (E2), a third lens element (E3), a fourth lens element (E4), a fifth lens element (E5), a sixth lens element (E6) and a seventh lens element (E7), and wherein each of the seven lens elements (E1, E2, E3, E4, E5, E6 and E7) has an object side surface facing the object side, an image-side surface facing the image side; wherein the object-side surface of the first lens element (E1) is concave in a triaxial region thereof, the image-side surface of the second lens element (E2) is concave in a multiaxial region thereof, the fourth lens element (E4) has a positive refractive power, the image-side surface of the fourth lens element (E4) is convex in a multiaxial region thereof, the sixth lens element (E6) has a positive refractive power, the seventh lens element (E7) has a negative refractive power, the object-side surface of the seventh lens element (E7) is convex in a multiaxial region thereof, and the image-side surface of the seventh lens element (E7) has at least one inflection point (P); and wherein an axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the second lens element (E2) and the third lens element (E3) is T23, an axial distance between the sixth lens element (E6) and the seventh lens element (E7) is T67, a central thickness of the fifth lens element (E5) is CT5, a focal length of the second lens element (E2) is f2, a focal length of the third lens element (E3) is f3, a focal length of the seventh lens element (E7) is f7, a radius of curvature of the object-side surface of the fourth lens element (E4) is R7, a radius of curvature of the object-side surface of the fifth lens element (E5) is R9, and the following conditions are satisfied: 1.00<T67 / CT5< 4.20; 0,01 < T12 / T23<0.80; 0 < | f3 / f2|+|f7 / f2|<1.50; and - 0,30 < ( R7+R9) / (R7- R9)<3.

00. The imaging optical lens assembly according to claim 1, wherein the third lens element (E3) has a positive refractive power, the fifth lens element (E5) has a negative refractive power, the object-side surface of the fifth lens element (E5) is concave in a triaxial portion thereof, and the image-side surface of the sixth lens element (E6) is convex in a multiaxial portion thereof.The imaging optical lens assembly according to claim 1, wherein the radius of curvature of the object-side surface of the fourth lens element (E4) is R7, the radius of curvature of the object-side surface of the fifth lens element (E5) is R9, and the following condition is satisfied: 0.20 < ( R7 + R9) / ( R7 - R9) < 2.

00. The imaging optical lens assembly according to claim 1, wherein a focal length of the imaging optical lens assembly is f, the focal length of the seventh lens element (E7) is f7, and the following condition is satisfied: - 2.00 < f / f7 < - 0.

65. The imaging optical lens assembly according to claim 1, wherein an axial distance between the object-side surface of the first lens element (E1) and an image surface (IMG) is TL, a focal length of the imaging optical lens assembly is f, a radius of curvature of the image-side surface of the fifth lens element (E5) is R10, a radius of curvature of the object-side surface of the sixth lens element (E6) is R11, a radius of curvature of the image-side surface of the sixth lens element (E6) is R12, and the following conditions are satisfied: 1.50 < TL / f < 3.00; and 0,01 < | R12 / R10 | + | R12 / R11 | < 0.

40. The optical lens assembly for imaging according to claim 1, wherein the object-side surface of the first lens element (E1) has at least one critical point (C) in an off-axis region thereof; and wherein a radius of curvature of the object-side surface of the first lens element (E1) is R1, a radius of curvature of the image-side surface of the third lens element (E3) is R6, and the following condition is satisfied: 0.10 < | R1 / R6 | < 1.

00. The imaging optical lens assembly according to claim 1, wherein the axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the fourth lens element (E4) and the fifth lens element (E5) is T45, and the following condition is satisfied: 0.01 < T12 / T45 < 1.

50. The imaging optical lens assembly according to claim 1, wherein a central thickness of the third lens element (E3) is CT3, a central thickness of the sixth lens element (E6) is CT6, and the following condition is satisfied: 2.00 < CT6 / CT3 < 3.

50. The imaging optical lens assembly according to claim 1, wherein a displacement parallel to an optical axis from an axial vertex of the object-side surface of the fifth lens element (E5) to a position of the maximum effective radius of the object-side surface of the fifth lens element (E5) is Sag5R1, a displacement parallel to the optical axis from an axial vertex of the image-side surface of the fifth lens element (E5) to a position of the maximum effective radius of the image-side surface of the fifth lens element (E5) is Sag5R2, the central thickness of the fifth lens element (E5) is CT5, and the following condition is satisfied: 2.00<| S5R1 / CT5|+| S5R2 / CT5|<5.

00. The imaging optical lens assembly according to claim 1, wherein a maximum effective radius of the object-side surface of the first lens element (E1) is Y1R1, a maximum image height of the imaging optical lens assembly is ImgH, and the following condition is satisfied: 0.20 < Y1R1 / ImgH < 0.

60. An image capturing unit (1, 100) comprising: the imaging optical lens assembly according to claim 1; and an image sensor (IS, 103) disposed on an image surface (IMG) of the imaging optical lens assembly.An electronic device (200) comprising: the image capturing unit (1, 100) according to claim 11.An optical lens assembly for imaging comprising seven lens elements (E1, E2, E3, E4, E5, E6 and E7), wherein the seven lens elements (E1, E2, E3, E4, E5, E6 and E7) are, in order from an object side to an image side along an optical path, a first lens element (E1), a second lens element (E2), a third lens element (E3), a fourth lens element (E4), a fifth lens element (E5), a sixth lens element (E6) and a seventh lens element (E7), and wherein each of the seven lens elements (E1, E2, E3, E4, E5, E6 and E7) has an object side surface facing the object side, and an image-side surface facing the image side; wherein the object-side surface of the first lens element (E1) is concave in a triaxial region thereof, the fourth lens element (E4) has a positive refractive power, the image-side surface of the fourth lens element (E4) is convex in a multiaxial region thereof, the sixth lens element (E6) has a positive refractive power, the seventh lens element (E7) has a negative refractive power, and the image-side surface of the seventh lens element (E7) has at least one inflection point (P), and wherein an axial distance between the sixth lens element (E6) and the seventh lens element (E7) is T67, a central thickness of the fifth lens element (E5) is CT5, a radius of curvature of the object-side surface of the first lens element (E1) is R1, a radius of curvature of the object-side surface of the fifth lens element (E5) is R9, a radius of curvature of the object-side surface of the sixth lens element (E6) is R11, a radius of curvature of the image-side surface of the sixth lens element (E6) is R12, an Abbe number of the third lens element (E3) is V3, an Abbe number of the fifth lens element (E5) is V5, and the following conditions are satisfied: 1.00<T 67 / CT5< 4.20; - 0,60 < ( R1-R9) / (R1+R9)<0.60; 0,60 < ( R11 + R12) / (R11 - R12) < 2.50; and 1,80 < V3 / V5 < 5.

00. The optical lens assembly for imaging according to claim 13, wherein the image-side surface of the first lens element (E1) is convex in a triaxial region thereof, and the object-side surface of the seventh lens element (E7) is convex in a multiaxial region thereof.The imaging optical lens assembly according to claim 13, wherein the object-side surface of the second lens element (E2) is convex in a triaxial region thereof; and wherein a focal length of the imaging optical lens assembly is f, a focal length of the sixth lens element (E6) is f6, and the following condition is satisfied: 0.80 < f / f6 < 2.

00. The imaging optical lens assembly according to claim 13, wherein a focal length of the fourth lens element (E4) is f4, a focal length of the sixth lens element (E6) is f6, and the following condition is satisfied: 1.20 < f4 / f6 < 3.

50. The imaging optical lens assembly according to claim 13, wherein an axial distance between the first lens element (E1) and the second lens element (E2) is T12, a central thickness of the seventh lens element (E7) is CT7, and the following condition is satisfied: 0.10 < T12 / CT7 < 0.

50. The optical lens assembly for imaging according to claim 13, wherein the radius of curvature of the object-side surface of the first lens element (E1) is R1, a radius of curvature of the image-side surface of the first lens element (E1) is R2, and the following condition is satisfied: - 2.00 < ( R1 - R2 ) / ( R1 + R2 ) < 0.

50. The imaging optical lens assembly according to claim 13, wherein the Abbe number of the third lens element (E3) is V3 and the following condition is satisfied: 40.0 < V3 < 75.

0. An optical lens assembly for imaging comprising seven lens elements (E1, E2, E3, E4, E5, E6 and E7), wherein the seven lens elements (E1, E2, E3, E4, E5, E6 and E7) are, in order from an object side to an image side along an optical path, a first lens element (E1), a second lens element (E2), a third lens element (E3), a fourth lens element (E4), a fifth lens element (E5), a sixth lens element (E6) and a seventh lens element (E7), and wherein each of the seven lens elements (E1, E2, E3, E4, E5, E6 and E7) has an object side surface facing the object side, An image-side surface facing the image side, wherein the object-side surface of the first lens element (E1) is concave in a triaxial region thereof, the image-side surface of the first lens element (E1) is convex in a multiaxial region thereof, the fourth lens element (E4) has a positive refractive power, the image-side surface of the fourth lens element (E4) is convex in a multiaxial region thereof, the object-side surface of the fifth lens element (E5) is concave in a multiaxial region thereof, the sixth lens element (E6) has a positive refractive power, the seventh lens element (E7) has a negative refractive power, the object-side surface of the seventh lens element (E7) is convex in a multiaxial region thereof, the image-side surface of the seventh lens element (E7) has at least one inflection point (P), and the optical lens assembly for imaging further comprises an aperture stop (ST) disposed between the second lens element (E2) and the fourth lens element (E4); and wherein an axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the sixth lens element (E6) and the seventh lens element (E7) is T67, a central thickness of the first lens element (E1) is CT1, a central thickness of the fifth lens element (E5) is CT5, a radius of curvature of the object-side surface of the sixth lens element (E6) is R11, a radius of curvature of the image-side surface of the sixth lens element (E6) is R12, and the following conditions are satisfied: 1.00<T67 / CT5<4.20; 0,60 < ( R11+R12) / (R11-R12)<2.50; and 0,01 < T12 / CT1<0.

80. The optical lens assembly for imaging according to claim 20, wherein the image-side surface of the third lens element (E3) is convex in a triaxial region thereof, and the object-side surface of the fourth lens element (E4) is convex in a multiaxial region thereof.The imaging optical lens assembly according to claim 20, wherein the axial distance between the sixth lens element (E6) and the seventh lens element (E7) is T67, the central thickness of the fifth lens element (E5) is CT5, an axial distance between the object-side surface of the first lens element (E1) and an image surface (IMG) TL, a maximum image height of the imaging optical lens assembly is ImgH, and the following conditions are satisfied: 1.30 < T67 / CT5 < 2.50 ; and 1,00 < TL / ImgH < 1.

45. The optical lens assembly for imaging according to claim 20, wherein a radius of curvature of the image-side surface of the first lens element (E1) is R2, a radius of curvature of the object-side surface of the fifth lens element (E5) is R9, and the following condition is satisfied: - 0.50 < ( R2 - R9) / ( R2 + R9) < 3.

50. The imaging optical lens assembly according to claim 20, wherein an Abbe number of the seventh lens element (E7) is V7 and the following condition is satisfied: 30.0 < V7 < 65.

0. The imaging optical lens assembly according to claim 20, wherein a focal length of the first lens element (E1) is f1, a focal length of the third lens element (E3) is f3, a focal length of the seventh lens element (E7) is f7, and the following condition is satisfied: 0.30 < | f7 / f1 | + | f7 / f3 | < 2.

00. The imaging optical lens assembly according to claim 20, wherein the axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the second lens element (E2) and the third lens element (E3) is T23, the axial distance between the sixth lens element (E6) and the seventh lens element (E7) is T67, the central thickness of the first lens element (E1) is CT1, the central thickness of the fifth lens element (E5) is CT5, a focal length of the second lens element (E2) is f2, a focal length of the third lens element (E3) is f3, a focal length of the seventh lens element (E7) is f7, a radius of curvature of the object-side surface of the first lens element (E1) is R1, a radius of curvature of the object-side surface of the fourth lens element (E4) is R7, a radius of curvature of the object-side surface of the fifth lens element (E5) is R9, the radius of curvature of the object-side surface of the sixth lens element (E6) is R11, the radius of curvature of the image-side surface of the sixth lens element (E6) is R12, an Abbe number of the third lens element (E3) is V3, an Abbe number of the fifth lens element (E5) is V5, and the following conditions are satisfied: 1.68≤T67 / CT5≤2.38; 0,22≤T12 / CT1≤0.36; _ner32_0.20≤T12 / T23≤0.55; 0,08≤|f3 / f2|+|f7 / f2|≤0.86; - 0,13≤(R7+R9) / (R7+R9)≤1.53; - 0,35≤(R1- R9) / (R1+R9)≤-0.07; 0,94≤(R11+R12) / (R11- R12)≤1.07; and 2,86≤V3 / V5≤3.04.

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