Optical imaging lens arrangement, imaging device and electronic device

Abstract

Optical imaging lens arrangement with five lens elements, wherein the five lens elements are arranged in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element, wherein each of the first to fifth lens elements has an object-side surface facing the object side and an image-side surface facing the image side; wherein the first lens element has a negative refractive power, the image-side surface of the first lens element is concave in a paraxial region of the same, the object-side surface of the second lens element is convex in a paraxial region of the same, the image-side surface of the third lens element is concave in a paraxial region of the same, the object-side surface of the fourth lens element is convex in a paraxial region of the same, the object-side surface of the fifth lens element is concave in a paraxial region of the same, and at least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region of the same; where Fno is an aperture number of the optical imaging lens arrangement, V2 is an Abbe number of the second lens element, V3 is an Abbe number of the third lens element, V4 is an Abbe number of the fourth lens element, V5 is an Abbe number of the fifth lens element, CT4 is a central thickness of the fourth lens element along the optical path, T45 is an axial distance between the fourth lens element and the fifth lens element, and the following conditions are met: 1.5 < Fno < 2.0 ; 1.8 < (V 2 + V 4 ) / ( V 3 + V 5 ) < 4.0 ; and 0.25 < CT 4 / T 45 < 5.5.

Description

RELATED APPLICATIONS

[0001] This application claims priority to Taiwanese application No. 112142144, filed on November 2, 2023, which is incorporated herein by reference in its entirety. BACKGROUNDTechnical field

[0002] The present disclosure relates to an optical imaging lens assembly and an imaging apparatus, and more particularly to an optical imaging lens assembly and an imaging apparatus suitable for electronic devices. Description of the state of the art

[0003] With advances in semiconductor technology, the performance of image sensors has improved and pixels have been reduced to even smaller sizes. Therefore, high-quality optical lens systems have become an indispensable component of modern electronic devices.

[0004] With the rapid development of science and technology, the application range of electronic devices equipped with optical lens systems has expanded, and the requirements for optical lens systems have become more diverse. Since prior art optical lens systems may find it difficult to achieve a balance between the requirements for image quality, sensitivity, aperture size, system volume, or field of view, the present invention aims to provide an optical lens system that meets these requirements. SUMMARY

[0005] According to one aspect of the present disclosure, an optical imaging lens assembly includes five lens elements. The five lens elements are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the first to fifth lens elements has an object-side surface facing the object side and an image-side surface facing the image side.

[0006] Preferably, the first lens element has a negative refractive power, the image-side surface of the first lens element is concave in a paraxial region thereof, the object-side surface of the second lens element is convex in a paraxial region thereof, the image-side surface of the third lens element is concave in a paraxial region thereof, the object-side surface of the fourth lens element is convex in a paraxial region thereof, the object-side surface of the fifth lens element is concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region thereof.Preferably, an F-number of the imaging optical lens array is Fno, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a central thickness of the fourth lens element along the optical path is CT4, an axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are satisfied:. 1.5 <Fno<2,0; 1.8<(V2+V4) / (V3+V5)<4.0; and 0.25 <CT4 / T45<5,5.

[0007] According to one aspect of the present disclosure, an imaging apparatus includes the above-mentioned optical imaging lens assembly and an image sensor disposed on an image surface of the optical imaging lens assembly.

[0008] According to another aspect of the present disclosure, an electronic device comprises the above-mentioned imaging devices.

[0009] According to one aspect of the present disclosure, an optical imaging lens assembly includes five lens elements. The five lens elements are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the first to fifth lens elements has an object-side surface facing the object side and an image-side surface facing the image side.

[0010] Preferably, the first lens element has a negative refractive power, the image-side surface of the first lens element is concave in a paraxial region thereof, the image-side surface of the third lens element is concave in a paraxial region thereof, the object-side surface of the fourth lens element is convex in a paraxial region thereof, the object-side surface of the fifth lens element is concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region thereof.Preferably, an F-number of the imaging optical lens assembly is Fno, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a central thickness of the fourth lens element along the optical path is CT4, a central thickness of the fifth lens element along the optical path is CT5, an axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are satisfied:. 1.5 <Fno<2,0; 1.8<(V2+V4) / (V3+V5)<4.0; and 1.1<(CT4 / CT5) / T45<7.3.

[0011] According to one aspect of the present disclosure, an optical imaging lens assembly includes five lens elements. The five lens elements are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the first to fifth lens elements has an object-side surface facing the object side and an image-side surface facing the image side.

[0012] Preferably, the image-side surface of the first lens element is concave in a paraxial region thereof, the second lens element has a positive refractive power, the object-side surface of the second lens element is convex in a paraxial region thereof, the third lens element has a negative refractive power, the object-side surface of the fourth lens element is convex in a paraxial region thereof, the object-side surface of the fifth lens element is concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region thereof.Preferably, an F-number of the imaging optical lens array is Fno, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a central thickness of the fourth lens element along the optical path is CT4, an axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are satisfied:. 1.5 <Fno<2,0; 1.5 <V4 / V5<4,0; and 0.65 <CT4 / T45<4,3. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a schematic view of an imaging apparatus according to the first embodiment of the present disclosure; Fig. 1B shows longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the first embodiment; Fig.2A is a schematic view of an imaging apparatus according to the second embodiment of the present disclosure; Fig. 2B shows longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the second embodiment; Fig. 3A is a schematic view of an imaging apparatus according to the third embodiment of the present disclosure; Fig. 3B shows longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the third embodiment; Fig. 4A is a schematic view of an imaging apparatus according to the fourth embodiment of the present disclosure; Fig.4B shows longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the fourth embodiment; Fig. 5A is a schematic view of an imaging apparatus according to the fifth embodiment of the present disclosure; Fig. 5B shows longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the fifth embodiment; Fig. 6A is a schematic view of an imaging apparatus according to the sixth embodiment of the present disclosure; Fig. 6B shows longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the sixth embodiment; Fig.7A is a schematic view of an imaging apparatus according to the seventh embodiment of the present disclosure; Fig. 7B shows longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the seventh embodiment; Fig. 8 is a schematic view showing certain parameters, inflection points on the surfaces of the lens elements, and a convex critical point on the image-side surface of the third lens element of the optical imaging lens assembly, using the first embodiment of the present disclosure as an example; Fig. 9 is a three-dimensional schematic view of an imaging apparatus according to the first embodiment of the present disclosure; Fig. 10A is a front view of an electronic device according to the eighth embodiment of the present disclosure; Fig.10B is a rear view of an electronic device according to the eighth embodiment of the present disclosure; Fig. 11 is a rear view of an electronic device according to the ninth embodiment of the present disclosure; and Fig. 12 is a rear view of an electronic device according to the tenth embodiment of the present disclosure. DETAILED DESCRIPTION

[0013] The present disclosure provides an optical imaging lens assembly having five lens elements. The five lens elements are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the first to fifth lens elements has an object-side surface facing the object side and an image-side surface facing the image side.

[0014] The first lens element has a negative refractive power, which has a positive effect on the magnification of the field of view.

[0015] The image-side surface of the first lens element is concave in a paraxial region so that the surface shapes and the refractive power of the first lens element can be adjusted, which has a beneficial effect on the enlargement of the field of view.

[0016] The second lens element has a positive refractive power, which has a beneficial effect on reducing the volume of the optical imaging lens assembly on the object side.

[0017] The object-side surface of the second lens element is convex in a paraxial region, so that the surface shapes and the refractive power of the second lens element can be adjusted, which is advantageous for reducing the volume of the optical imaging lens assembly on the object side.

[0018] The image-side surface of the second lens element is convex in a paraxial region so that the direction of light propagation can be adjusted, which has a beneficial effect on the enlargement of the field of view.

[0019] The third lens element has a negative refractive power, which can help balance the refractive power distribution of the optical imaging lens assembly and thereby correct aberrations such as spherical aberrations.

[0020] The image-side surface of the third lens element is concave in a paraxial region so that the third lens element can interact with the fourth lens element to favorably correct aberrations.

[0021] The fourth lens element has a positive refractive power, which has a beneficial effect on reducing the volume of the optical imaging lens assembly on the image side.

[0022] The object-side surface of the fourth lens element is convex in a paraxial region, which is beneficial for improving the image quality of wide-angle light.

[0023] The image-side surface of the fourth lens element is convex in a paraxial region so that the light propagation direction can be adjusted to favorably enlarge the image area.

[0024] The fifth lens element has a negative refractive power, which is beneficial for setting a suitable rear focal length.

[0025] The object-side surface of the fifth lens element is concave in a paraxial region so that the angle of incidence of the light on the fifth lens element can be adjusted, which has a beneficial effect on reducing surface reflections.

[0026] At least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region, so that the degree of variation of the surfaces of the lens elements can be increased, which can contribute to reducing the size of the optical imaging lens assembly and correcting aberrations. Furthermore, at least two or three of the first to fifth lens elements can each have at least one inflection point in an off-axis region on the object-side surface and / or the image-side surface.

[0027] The image-side surface of the third lens element has at least one convex critical point in an off-axis region so that the surface shapes of the third lens element can be adjusted, which is advantageous for correcting off-axis aberrations.

[0028] An aperture number of the optical imaging lens assembly is Fno. When the following condition is met: 1.5 < Fno < 2.0, a balance between illuminance and depth of field can be achieved. Furthermore, the following condition can be met: 1.6 < Fno < 1.9. Furthermore, the following condition can be met: 1.69 ≤ Fno ≤ 1.88.

[0029] The Abbe number of the second lens element is V2, the Abbe number of the third lens element is V3, the Abbe number of the fourth lens element is V4, and the Abbe number of the fifth lens element is V5. When the following condition is met: 1.8 < (V2+V4) / (V3+V5) < 4.0, the arrangement of the lens element materials can be adjusted to correct aberrations such as chromatic aberrations. Furthermore, the following condition can be met: 2.1 < (V2+V4) / (V3+V5) < 3.5. Furthermore, the following condition can be met: 2.35 ≤ (V2+V4) / (V3+V5) ≤ 3.05.

[0030] The Abbe number of the fourth lens element is V4, and the Abbe number of the fifth lens element is V5. When the following condition is met: 1.5 < V4 / V5 < 4.0, the fourth lens element can cooperate with the fifth lens element to correct aberrations such as chromatic aberrations. In addition, the following condition can be met: 1.7 < V4 / V5 < 3.5. Furthermore, the following condition can be met: 1.98 ≤ V4 / V5 ≤ 3.05.

[0031] The central thickness of the fourth lens element along the optical path is CT4, the central thickness of the fifth lens element along the optical path is CT5, and the axial distance between the fourth lens element and the fifth lens element is T45. When the following condition is satisfied: 1.1 < (CT4 + CT5) / T45 < 7.3, the fourth lens element can cooperate with the fifth lens element and is beneficial for adjusting the volume distribution on the image side of the imaging optical lens assembly. Furthermore, the following condition can be satisfied: 1.6 < (CT4 + CT5) / T45 < 5.4. Furthermore, the following condition can be satisfied: 2.00 ≤ (CT4 + CT5) / T45 ≤ 4.01.

[0032] The central thickness of the fourth lens element along the optical path is CT4, and the axial distance between the fourth lens element and the fifth lens element is T45. When the following condition is met: 0.25 < CT4 / T45 < 5.5, the fourth lens element can cooperate with the fifth lens element and is favorable for adjusting the volume distribution on the image side of the imaging optical lens assembly. In addition, the following condition can be met: 0.65 < CT4 / T45 < 4.3. Furthermore, the following condition can be met: 1.0 < CT4 / T45 < 3.2. Furthermore, the following condition can be met: 1.46 ≤ CT4 / T45 ≤ 2.98.

[0033] The central thickness of the first lens element along the optical path is CT1, the central thickness of the second lens element along the optical path is CT2, the central thickness of the third lens element along the optical path is CT3, the central thickness of the fourth lens element along the optical path is CT4, and the central thickness of the fifth lens element along the optical path is CT5. When the following condition is met: 0.80 < (CT2 + CT4 / CT1 + CT3 + CT5) < 1.9, the distribution of the lens elements can be adjusted, which is beneficial for increasing the field of view and reducing the volume of the optical imaging lens assembly.

[0034] A radius of curvature of the image-side surface of the first lens element is R2, and a radius of curvature of the object-side surface of the second lens element is R3. When the following condition is met: 0.75 < R2 / R3 < 2.3, the surface shapes of the first lens element and the second lens element can complement each other, which is beneficial for correcting aberrations and reducing stray light.

[0035] The focal length of the third lens element is f3, the focal length of the fourth lens element is f4, and the focal length of the fifth lens element is f5. When the following condition is met: -11 < (f3+f5) / f4 < -3.2, the refractive power distribution of the imaging optical lens array can be adjusted, which is beneficial for correcting spherical aberrations and distortions.

[0036] A maximum distance between the optically effective area of ​​the object-side surface of the first lens element and an optical axis is Y11, and a maximum distance between the optically effective area of ​​the image-side surface of the fifth lens element and the optical axis is Y52. When the following condition is met: 0.95 < Y52 / Y11 < 1.5, the light propagation direction can be adjusted, which is favorable for achieving a balance between the field of view, the image area, and the volume distribution.

[0037] The axial distance between the first lens element and the second lens element is T12, the axial distance between the second lens element and the third lens element is T23, the axial distance between the third lens element and the fourth lens element is T34, and the axial distance between the fourth lens element and the fifth lens element is T45. When the following condition is satisfied: 4.0 < (T12 + T45) / (T23 + T34) < 15, the distribution of the lens elements in the imaging optical lens assembly can be adjusted, which has a beneficial effect on the magnification of the field of view. Furthermore, the following condition can be satisfied: 4.5 < (T12 + T45) / (T23 + T34) < 11.

[0038] The central thickness of the fourth lens element along the optical path is CT4, a radius of curvature of the object-side surface of the fourth lens element is R7, and a radius of curvature of the image-side surface of the fourth lens element is R8. When the following condition is met: CT4 / R7+CT4 / R81 < 0.80, the surface shapes of the fourth lens element can be adjusted, which is beneficial for correcting aberrations such as comatic aberrations.

[0039] The radius of curvature of the image-side surface of the third lens element is R6, and the focal length of the imaging optical lens assembly is f. If the following condition is met: 1.1 < R6 / f < 7.0, the shape and refractive power of the third lens element can be adjusted to favorably correct aberrations such as astigmatism. Furthermore, the following condition can be met: 1.4 < R6 / f < 5.5.

[0040] The combined focal length of the first lens element and the second lens element is f12, and the focal length of the imaging optical lens assembly is f. If the following condition is met: 1.1 < f12 / f < 4.0, the volume of the imaging optical lens assembly on the object side can be advantageously reduced. Furthermore, the following condition can be met: 1.3 < f12 / f < 3.0.

[0041] An axial distance between the object-side surface of the first lens element and an image surface is TL, and a maximum image height of the imaging optical lens array is ImgH (which may be half of a diagonal length of the effective photosensitive area of ​​the image sensor). When the following condition is met: 1.6 < TL / ImgH < 2.6, a balance can be achieved between reducing the total path length of the imaging optical lens array and increasing the image area.

[0042] Half of the maximum field of view of the optical imaging lens assembly is HFOV. If the following condition is met: 49.2 degrees < HFOV < 70.3 degrees, the field of view can be advantageously enlarged while avoiding aberrations such as distortion caused by an excessively large field of view.

[0043] The maximum central thickness of the first to fifth lens elements along the optical path is CTmax, and the minimum central thickness of the first to fifth lens elements along the optical path is CTmin. When the following condition is met: 2.8 < CTmax / CTmin < 4.3, the distribution of lens elements in the optical imaging lens array can be adjusted, which is beneficial for reducing the volume of the lens assembly.

[0044] The axial distance between the object-side surface of the first lens element and an image surface is TL, and the focal length of the imaging optical lens array is f. When the following condition is satisfied: 1.5 < TL / f < 3.9, a balance can be achieved between reducing the total path length of the imaging optical lens array and increasing the field of view.

[0045] The maximum distance between the optically effective area of ​​the image-side surface of the fifth lens element and the optical axis is Y52, and the maximum distance between the optically effective area of ​​an aperture stop and the optical axis is YS. When the following condition is met: 2.2 < Y52 / YS < 3.5, the light propagation direction can be adjusted, which is beneficial for enlarging the field of view and correcting off-axis aberrations.

[0046] The radius of curvature of the object-side surface of the fifth lens element is R9, and the focal length of the imaging optical lens assembly is f. When the following condition is met: -5.0 < R9 / f < -0.10, the surface shapes and refractive power of the fifth lens element can be adjusted, which is beneficial for improving the image quality of wide-angle light. Furthermore, the following condition can be met: -4.0 < R9 / f < -0.25.

[0047] The focal length of the second lens element is f2, and the central thickness of the second lens element along the optical path is CT2. When the following condition is met: 2.4 < f2 / CT2 < 5.0, the surface shapes and refractive power of the second lens element can be adjusted, which is beneficial for reducing the volume of the optical imaging lens assembly. Furthermore, the following condition can be met: 2.6 < f2 / CT2 < 4.5.

[0048] A radius of curvature of the image-side surface of the second lens element is R4, and the central thickness of the second lens element along the optical path is CT2. When the following condition is met: -5.0 < R4 / CT2 < -2.0, the surface shapes of the second lens element can be customized, which is advantageous for providing wide-angle configurations.

[0049] The present disclosure provides an imaging apparatus comprising the above-mentioned optical imaging lens assembly and an image sensor disposed on an image surface of the optical imaging lens assembly.

[0050] The present disclosure further provides an electronic device including the above-mentioned imaging apparatus.

[0051] Fig.Figure 8 is a schematic view showing the parameters Y11, Y52, YS, inflection points on the surfaces of the lens elements, and a convex critical point on the image-side surface of the third lens element of the imaging optical lens assembly, using the first embodiment of the present disclosure as an example. Y11 is a maximum distance between the optically effective surface of the object-side surface of the first lens element and an optical axis, Y52 is a maximum distance between the optically effective surface of the image-side surface of the fifth lens element and the optical axis, YS is a maximum distance between the optically effective surface of a diaphragm and the optical axis, IP is an inflection point on a surface of a lens element, and CP is a convex critical point on the image-side surface of the third lens element. Fig.8, exemplary inflection points on the surfaces of certain lens elements and a convex critical point on the image-side surface of the third lens element are shown according to the first embodiment of the present disclosure. However, each of the lens elements, either in the first embodiment or in other embodiments of the present disclosure, may have one or more inflection points or one or more critical points on a surface. According to the optical imaging lens assembly of the present disclosure, an inflection point is a point on a surface of a lens element at which the surface curvature changes from positive to negative or vice versa; and a critical point is a point on a surface of a lens element that is tangent to a tangential plane perpendicular to the optical axis, excluding the intersection of the aforementioned surface and the optical axis.

[0052] The aforementioned features of the optical imaging lens arrangement can be used in numerous combinations to achieve corresponding effects.

[0053] According to the imaging optical lens assembly of the present disclosure, the optical elements can be made of glass or plastic. When the optical elements are made of glass, the refractive power distribution of the imaging optical lens assembly can be made more flexible, and the effect of ambient temperature on imaging can be reduced.

[0054] Technologies such as grinding or casting can be used to manufacture optical elements from glass. Manufacturing optical elements from plastic can effectively reduce manufacturing costs. Furthermore, the surfaces of individual optical elements can be designed to be spherical or aspherical (ASP). The arrangement of spherical surfaces can reduce manufacturing difficulties, while the arrangement of aspherical surfaces can result in more control variables for eliminating aberrations and further reducing the required number of optical elements. Processes such as plastic injection molding or molded glass lenses can be used to manufacture the aspherical surfaces.

[0055] According to the optical imaging lens assembly of the present disclosure, an aspherical surface of an optical element means that the surface has an aspherical shape over all or part of its optically effective area.

[0056] According to the optical imaging lens assembly of the present disclosure, additives can be selectively added to the material of one (or more) optical elements to create light absorption or light interference effects, thereby altering the transmittance of the optical element in a specific wavelength range of light and further reducing stray light and chromatic aberrations. For example, an additive that can filter out light in the wavelength range of 600-800 nm can be added to reduce additional red or infrared light, or an additive that can filter out light in the wavelength range of 350-450 nm can be added to reduce blue or ultraviolet light in the optical elements. In this way, additives can prevent unwanted interfering light in certain wavelength ranges from affecting the final image.In addition, additives can be uniformly mixed into the plastic material used in the injection molding process for optical elements. Furthermore, additives can also be added to a coating on the surface of a lens element to achieve the aforementioned effects.

[0057] According to the optical imaging lens assembly of the present disclosure, the optical imaging lens assembly may include at least one stop, such as an aperture stop, a glare stop, or a field stop, to advantageously reduce the amount of stray light and thereby improve image quality.

[0058] According to the imaging optical lens assembly of the present disclosure, an aperture stop can be configured as a front stop or a center stop. The front stop, disposed between an imaged object and the first optical element, can provide a larger distance between an exit pupil of the imaging optical lens assembly and the image surface, so that the generated telecentric effect can improve the image acquisition efficiency of an image sensor, such as a CCD or CMOS sensor. The center stop, disposed between the first optical element and the image surface, is beneficial for enlarging the field of view of the imaging optical lens assembly, thereby providing the imaging optical lens assembly with the advantage of a wide-angle lens.

[0059] An aperture control unit may be arranged in the optical imaging lens assembly of the present disclosure. The aperture control unit may be a mechanical part or an optical moderating part in which the size and shape of the aperture can be controlled by electrical or electronic signals. The mechanical part may include movable parts such as blades, shielding plates, etc. The optical part may include shielding materials such as filters, electrochromic materials, liquid crystal layers, etc. The aperture control unit can control the amount of incident light and the exposure time to further improve image quality. The aperture control unit in the present disclosure may represent the aperture, which can adjust image characteristics such as depth of field or exposure speed by changing the f-number of the optical imaging lens assembly.

[0060] If the optical element has a convex surface and the range of the convex shape is not specified, it means that the surface may be convex in the paraxial region of the optical element, as in the optical imaging lens assembly of the present disclosure. If the optical element has a concave surface and the range of the concave shape is not specified, it means that the surface may be concave in the paraxial region thereof. If the range of the refractive power or focal length of an optical element is not specified, it means that the range of the refractive power or focal length of the optical element may be in its paraxial region.

[0061] According to the imaging optical lens assembly of the present disclosure, at least one optical element capable of folding the optical path, such as a prism or a reflecting mirror, can be optionally provided on the optical path between the imaged object and the image surface. The surface shape of the prism or reflecting mirror can be flat, spherical, aspherical, or free-form. Then, the imaging optical lens assembly can be provided with more flexibility for its spatial arrangement, so that the minimization of electronic devices is not limited by the total path length of the imaging optical lens assembly.

[0062] According to the imaging optical lens assembly of the present disclosure, the image surface of the imaging optical lens assembly based on the corresponding image sensor may be a flat surface or a curved surface with any curvature, particularly a curved surface that is concave toward the object side. Meanwhile, the imaging optical lens assembly of the present disclosure may optionally include one or more image correction components (such as a field flattener) between the image surface and the optical element closest to the image surface for the purpose of image corrections (such as field curvature correction). The optical properties of the image correction components, such as curvatures, thicknesses, refractive indices, positions, and shapes (convex or concave, spherical or aspherical, diffractive surface and Fresnel surface, etc.), can be adjusted according to the requirements of the imaging device.Preferably, an image correction component may be a thin plano-concave component whose surface is concave toward the object side and which is arranged near the image surface.

[0063] In the optical imaging lens assembly of the present disclosure, one or more optical elements may be provided to limit the forms of light passing through the system. Said optical element may be (but is not limited to) a filter or a polarizer, and may be provided in the form of a single piece, a composite component, or a thin film. The aforementioned optical element may be disposed on the object side or the image side of the optical imaging lens assembly, or alternatively, between the lens elements of the assembly to control the passage of specific forms of light to meet different application requirements.

[0064] The imaging optical lens assembly of the present disclosure may include at least one of an optical lens element, an optical element, or a substrate having an anti-reflection layer disposed on at least one of its surfaces. The anti-reflection layer can effectively reduce stray light generated by light reflection at the interface. The anti-reflection layer may be disposed on the non-effective portion of the object-side surface or the image-side surface of the above-mentioned optical lens element, or on a connecting surface between the object-side surface and the image-side surface. The above-mentioned optical element may be a light-blocking element, an annular spacer element, a barrel-shaped element, a cover glass, a blue glass, a filter / color filter, an optical path folding element, a prism, or a mirror.The carrier may be a lens carrier, a microlens arranged on the image sensor or a glass plate that surrounds the substrate of the image sensor or serves to protect the image sensor.

[0065] Having described the present disclosure above, the following specific embodiments are provided for further explanation. 1. Embodiment

[0066] Fig. 1A is a schematic view of an imaging apparatus 1 according to the first embodiment of the present disclosure. Fig. 1B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device 1 according to the first embodiment.

[0067] In Fig.1A, the imaging device 1 includes an imaging optical lens array of the present disclosure and an image sensor IS. The imaging optical lens array includes, in order from an object side to an image side along an optical path, a first lens element E1, a stop ST, a second lens element E2, a stop S1, a third lens element E3, a fourth lens element E4, a fifth lens element E5, a filter E6, and an image surface IMG. The image sensor IS is arranged on or near the image surface IMG. The imaging optical lens array includes five lens elements (E1, E2, E3, E4, and E5), with no additional lens element arranged between the adjacent lens elements.

[0068] The first lens element E1 has a negative refractive power and is made of plastic. The first lens element E1 has an object-side surface that is concave in a paraxial region thereof and has two inflection points in an off-axis region thereof, and an image-side surface that is concave in a paraxial region thereof and has one inflection point in an off-axis region thereof. Both the object-side surface and the image-side surface are aspherical.

[0069] The second lens element E2 has a positive refractive power and is made of plastic. The second lens element E2 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0070] The third lens element E3 has a negative refractive power and is made of plastic. The third lens element E3 has an object-side surface that is convex in a paraxial region and has two inflection points in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points and a convex critical point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0071] The fourth lens element E4 has a positive refractive power and is made of plastic. The fourth lens element E4 has an object-side surface that is convex in a paraxial region and has two inflection points in an off-axis region, and an image-side surface that is convex in a paraxial region and has one inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0072] The fifth lens element E5 has a negative refractive power and is made of plastic. The fifth lens element E5 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0073] The E6 filter is located between the fifth lens element E5 and the image area IMG. The E6 filter is made of glass and does not affect the focal length of the optical imaging lens assembly.

[0074] The detailed optical data of the first embodiment are shown in TABLE 1A, where the units of the radius of curvature, thickness, and focal length are expressed in mm, f is a focal length of the imaging optical lens assembly, Fno is an F-number of the imaging optical lens assembly, HFOV is half of the maximum field of view, and areas No. 0 to No. 15 refer to the areas in order from the object side to the image side. The data of the aspherical surfaces are shown in TABLE 1B, where k is the conic coefficient in the equation of the aspherical surface profiles, and A4-A26 refer to the 4th to 26th order aspherical coefficients.

[0075] Furthermore, it should be noted that the tables presented in the following embodiments are linked to the schematic representation and diagrams of longitudinal spherical aberration curves, astigmatic field curves, and the distortion curve for each embodiment. The definitions of the parameters listed in the following tables are the same as those listed in TABLE 1A and TABLE 1B for the first embodiment. Explanations in this regard will not be repeated. TABLE 1A (1st embodiment) f = 1.02mm. Fno = 1.85. HFOV = 64.0 degrees Surface No. Radius of curvature thickness material index Abbe number focal length 0 object Plano infinity 1 Lens 1 -3,46800 (ASP) 0,220 plastic 1,545 56,1 -2,10 2 1,74345 (ASP) 0,818 3 App. Aperture Plano -0,043 4 Lens 2 1,11461 (ASP) 0,434 plastic 1,544 56,0 1,34 5 -1,80957 (ASP) -0,036 6 aperture Plano 0,134 7 Lens 3 68,41020 (ASP) 0,180 plastic 1,680 18,2 -2,99 8 1,96951 (ASP) 0,069 9 Lens 4 1,47911 (ASP) 0,661 plastic 1,544 56,0 0,94 10 -0,65994 (ASP) 0,222 11 Lens 5 -3,62830 (ASP) 0,229 plastic 1,639 23,5 -1,08 12 0,87496 (ASP) 0,150 13 filter Plano 0,110 Glass 1,517 64,2 - 14 Plano 0,237 15 Image surface Plano - The reference wavelength is the d-line at 587.6 nm. The effective radius of the aperture (S1) on surface No. 6 is 0.540 mm. TABLE 1B Aspherical coefficient Surface No. 1 2 4 5 7 k = -9,00000E+01 -2,20968E+01 -6,12724E+00 3,78663E+00 0,00000E+00 A4 = 1,2043675E+00 2,3241921E+00 4,3627548E-01 -8,1331933E-02 -1,4827902E+00 A6 = -2,0824217E+00 -2,0809269E-01 1,0192937E+00 -1,1245784E+01 4,5621972E+00 A8 = 1,5514954E+00 -9,0779400E+00 -3,7486564E+01 1,8681007E+02 4,0424926E+01 A10 = 2,6506628E+00 -1,9359704E+00 1,6189673E+02 -2,0435151E+03 -1,5678698E+03 A12 = -7,9678700E+00 2,5158875E+02 8,1563383E+02 1,2861263E+04 1,7555646E+04 A14 = 8,1756019E+00 -7,7759988E+02 -1,0308352E+04 -4,8244009E+04 -1,0460493E+05 A16 = -3,9287584E+00 7,5677968E+02 2,4243889E+04 1,0322668E+05 3,4551782E+05 A18 = 7,4186802E-01 -1,6544536E+02 -1,1253310E+05 -5,8492119E+05 A20 = 4,7125113E+04 3,9249947E+05 Surface No. 8 9 10 11 12 k = -9,22808E+00 -3,04932E+01 -2,80191E+00 5,77708E+00 -1,11974E+01 A4 = -1,8387380E+00 -1,9390992E-01 5,1235578E-01 -3,7504767E-01 5,9543147E-01 A6 = 8,9954538E+00 -1,0153703E-02 -5,0749931E+00 3,3912717E+00 -7,5875541E+00 A8 = -1,3482226E+01 8,0710510E+00 3,0054177E+01 -8,8042421E+01 3,3568855E+01 A10 = -2,3879560E+02 -6,1514275E+01 -1,2487754E+02 6,5858520E+02 -9,378 133 1E+0 1 A12 = 2,0785811E+03 2,2408812E+02 3,4743730E+02 -2,6798449E+03 1,8180108E+02 A14 = -7,9216161E+03 -4,3208709E+02 -6,1349974E+02 6,7193072E+03 -2,5145743E+02 A16 = 1,5877239E+04 3,5912557E+02 6,4394304E+02 -1,0675071E+04 2,4881072E+02 A18 = -1,5431125E+04 3,6714445E+01 -3,5920219E+02 1,0476366E+04 -1,7397625E+02 A20 = 5,3332384E+03 -1,6214935E+02 8,0578150E+01 -5,7851383E+03 8,3580200E+01 A22 = 1,3711874E+03 -2,6140263E+01 A24 = 4,7748361E+00 A26 = -3,8519341E-01

[0076] The equation for the aspherical surface profiles is expressed as follows: X(Y)=(Y2 / R) / (1+sqrt(1−(1+k)*(Y / R)2))+∑i(Ai)*(Yi) where: X is the relative distance between a point on the aspherical surface at a distance Y from the optical axis and the tangent plane at the vertex of the aspherical surface on the optical axis; Y is the vertical distance between the point on the aspherical surface profile and the optical axis; R is the radius of curvature; k is the cone coefficient; and Ai is the i-th aspheric coefficient.

[0077] In the first embodiment, the focal length of the imaging optical lens array is f, and the following condition is satisfied: f=1.02 mm.

[0078] In the first embodiment, the F-number of the imaging optical lens array is Fno, and the following condition is satisfied: Fno=1.85.

[0079] In the first embodiment, half of the maximum field of view of the imaging optical lens array is HFOV, and the following condition is satisfied: HFOV=64.0 degrees.

[0080] In the first embodiment, the Abbe number of the second lens element E2 is V2, the Abbe number of the third lens element E3 is V3, the Abbe number of the fourth lens element E4 is V4, the Abbe number of the fifth lens element E5 is V5, and the following condition is satisfied: (V2+V4) / (V3+V5) = 2.69.

[0081] In the first embodiment, the Abbe number of the fourth lens element E4 is V4, the Abbe number of the fifth lens element E5 is V5, and the following condition is satisfied: V4 / V5=2.38.

[0082] In the first embodiment, the central thickness of the first lens element E1 along the optical path CT1, the central thickness of the second lens element E2 along the optical path CT2, the central thickness of the third lens element E3 along the optical path CT3, the central thickness of the fourth lens element E4 along the optical path CT4, the central thickness of the fifth lens element E5 along the optical path CT5, and the following condition is satisfied: (CT2+CT4) / (CT1+CT3+CT5)=1.74.

[0083] In the first embodiment, the central thickness of the fourth lens element E4 along the optical path is CT4, the central thickness of the fifth lens element E5 along the optical path is CT5, the axial distance between the fourth lens element E4 and the fifth lens element E5 is T45, and the following condition is satisfied: (CT4+CT5) / T45=4.01, In this embodiment, the axial distance between two adjacent lens elements means the axial distance between two adjacent surfaces of the two adjacent lens elements.

[0084] In the first embodiment, the axial distance between the first lens element E1 and the second lens element E2 is T12, the axial distance between the second lens element E2 and the third lens element E3 is T23, the axial distance between the third lens element E3 and the fourth lens element E4 is T34, the axial distance between the fourth lens element E4 and the fifth lens element E5 is T45, and the following condition is satisfied: (T12+T45) / (T23+T34)=5.97.

[0085] In the first embodiment, the central thickness of the fourth lens element E4 along the optical path is CT4, the radius of curvature of the object-side surface of the fourth lens element E4 is R7, the radius of curvature of the image-side surface of the fourth lens element E4 is R8, and the following condition is satisfied: CT4 / R7+CT4 / R81=0.55.

[0086] In the first embodiment, the central thickness of the fourth lens element E4 along the optical path is CT4, the axial distance between the fourth lens element E4 and the fifth lens element E5 is T45, and the following condition is satisfied: CT4 / T45=2.98.

[0087] In the first embodiment, the maximum central thickness of the first to fifth lens elements along the optical path is CTmax, the minimum central thickness of the first to fifth lens elements along the optical path is CTmin, and the following condition is satisfied: CTmax / CTmin=3.67. In this embodiment, the central thickness of the fourth lens element E4 along the optical path is greater than that of the other lens elements (E1, E2, E3, and E5) along the optical path, and thus CTmax is the central thickness of the fourth lens E4 along the optical path. The central thickness of the third lens element E3 along the optical path is smaller than that of the other lens elements (E1, E2, E4, and E5) along the optical path, and thus CTmin is the central thickness of the third lens E3 along the optical path.

[0088] In the first embodiment, the axial distance between the object-side surface of the first lens element E1 and the image surface IMG is TL, the focal length of the imaging optical lens array is f, and the following condition is satisfied: TL / f=3.31.

[0089] In the first embodiment, the axial distance between the object-side surface of the first lens element E1 and the image surface IMG is TL, the maximum image height of the imaging optical lens array is ImgH, and the following condition is satisfied: TL / ImgH=2.25.

[0090] In the first embodiment, the radius of curvature of the image-side surface of the first lens element E1 is R2, the radius of curvature of the object-side surface of the second lens element E2 is R3, and the following condition is satisfied: R2 / R3=1.56.

[0091] In the first embodiment, the radius of curvature of the image-side surface of the second lens element E2 is R4, the central thickness of the second lens element E2 along the optical path is CT2, and the following condition is satisfied: R4 / CT2=-4.17.

[0092] In the first embodiment, the radius of curvature of the image-side surface of the third lens element E3 is R6, the focal length of the imaging optical lens array is f, and the following condition is satisfied: R6 / f=1.92.

[0093] In the first embodiment, the radius of curvature of the object-side surface of the fifth lens element E5 is R9, the focal length of the imaging optical lens array is f, and the following condition is satisfied: R9 / f=-3.54.

[0094] In the first embodiment, the focal length of the third lens element E3 is f3, the focal length of the fourth lens element E4 is f4, the focal length of the fifth lens element E5 is f5, and the following condition is satisfied: (f3+f5) / f4=-4.32.

[0095] In the first embodiment, the combined focal length of the first lens element E1 and the second lens element E2 is f12, the focal length of the imaging optical lens array is f, and the following condition is satisfied: f12 / f=1.62.

[0096] In the first embodiment, the focal length of the second lens element E2 is f2, the central thickness of the second lens element E2 along the optical path is CT2, and the following condition is satisfied: f2 / CT2=3.08.

[0097] In the first embodiment, the maximum distance between the optically effective area of ​​the image-side surface of the fifth lens element E5 and the optical axis is Y52, the maximum distance between the optically effective area of ​​the object-side surface of the first lens element E1 and an optical axis is Y11, and the following condition is satisfied: Y52 / Y11=1.13.

[0098] In the first embodiment, the maximum distance between the optically effective area of ​​the image-side surface of the fifth lens element E5 and the optical axis is Y52, the maximum distance between the optically effective area of ​​the aperture stop and the optical axis is YS, and the following condition is satisfied: Y52 / YS=2.98. 2. Embodiment

[0099] Fig. 2A is a schematic view of an imaging apparatus 2 according to the second embodiment of the present disclosure. Fig.2B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device 2 according to the second embodiment.

[0100] In Fig.2A, the imaging device 2 includes an imaging optical lens array of the present disclosure and an image sensor IS. The imaging optical lens array includes, in order from an object side to an image side along an optical path, a first lens element E1, a stop ST, a second lens element E2, a stop S1, a third lens element E3, a fourth lens element E4, a stop S2, a fifth lens element E5, a filter E6, and an image surface IMG. The image sensor IS is arranged on or near the image surface IMG. The imaging optical lens array includes five lens elements (E1, E2, E3, E4, and E5), with no additional lens element arranged between the adjacent lens elements.

[0101] The first lens element E1 has a negative refractive power and is made of plastic. The first lens element E1 has an object-side surface that is flat in a paraxial region thereof and has an inflection point in an off-axis region thereof, and an image-side surface that is concave in a paraxial region thereof and has an inflection point in an off-axis region thereof. Both the object-side surface and the image-side surface are aspherical.

[0102] The second lens element E2 has a positive refractive power and is made of plastic. The second lens element E2 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0103] The third lens element E3 has a negative refractive power and is made of plastic. The third lens element E3 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points and a convex critical point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0104] The fourth lens element E4 has a positive refractive power and is made of plastic. The fourth lens element E4 has an object-side surface that is convex in a paraxial region and has two inflection points in an off-axis region, and an image-side surface that is convex in a paraxial region and has one inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0105] The fifth lens element E5 has a negative refractive power and is made of plastic. The fifth lens element E5 has an object-side surface that is concave in a paraxial region thereof and has two inflection points in an off-axis region thereof, and an image-side surface that is convex in a paraxial region thereof and has three inflection points in an off-axis region thereof. Both the object-side surface and the image-side surface are aspherical.

[0106] The E6 filter is located between the fifth lens element E5 and the image area IMG. The E6 filter is made of glass and does not affect the focal length of the optical imaging lens assembly.

[0107] The detailed optical data of the second embodiment are shown in TABLE 2A and the aspherical surface data in TABLE 2B. TABLE 2A (2nd embodiment) f=1.37mm. Fno = 1.75. HFOV = 69.0 degrees Surface No. Radius of curvature thickness material index Abbe number focal length 0 object Plano 380,000 1 Lens 1 infinity (ASP) 0,233 plastic 1,614 25,6 -3,66 2 2,24501 (ASP) 0,507 3 App. Aperture Plano -0,001 4 Lens 2 1,82670 (ASP) 0,437 plastic 1,544 56,0 1,69 5 -1,69104 (ASP) -0,103 6 aperture Plano 0,123 7 Lens 3 -13,03640 (ASP) 0,180 plastic 1,639 23,5 -4,40 8 3,59840 (ASP) 0,094 9 Lens 4 1,25955 (ASP) 0,651 plastic 1,544 56,0 1,16 10 -1,03401 (ASP) -0,297 11 aperture Plano 0,714 12 Lens 5 -0,71977 (ASP) 0,241 plastic 1,669 19,5 -1,09 13 -78,09640 (ASP) 0,150 14 filter Plano 0,145 Glass 1,517 64,2 - 15 Plano 0,110 16 Image surface Plano - The reference wavelength is the d-line at 587.6 nm. The effective radius of the aperture (S1) on surface No. 6 is 0.550 mm. The effective radius of the aperture (S2) on surface No. 11 is 0.860 mm. TABLE 2B Aspherical coefficient Surface No. 1 2 4 5 7 k= 0,00000E+00 -5,47243E+01 -6,72320E+00 3,46616E+00 8,53649E+01 A4 = 9,3029726E-01 1,3959894E+00 2,5039549E-01 -1,8046855E+00 -3,3509659E+00 A6 = -2,0053532E+00 1,2115777E+01 -1,0014358E+00 3,3096212E+01 5,0647899E+01 A8 = 5,5107275E+00 -1,9492406E+02 9,7311123E+00 -3,8545113E+02 -5,3697976E+02 A10 = -1,2818300E+01 1,5670148E+03 -1,1480756E+02 2,8494932E+03 3,7148118E+03 A12 = 2,2100263E+01 -7,2420334E+03 6,2505307E+02 -1,4290301E+04 -1,6819823E+04 A14 = -2,4754457E+01 1,9573253E+04 -1,9335721E+03 4,6373745E+04 4,6922190E+04 A16 = 1,4970603E+01 -2,8205317E+04 1,9324116E+03 -9,1675172E+04 -7,3904969E+04 A18 = -3,6431825E+00 1,6419936E+04 9,9327408E+04 5,6901236E+04 A20 = -4,4810849E+04 -1,4664701E+04 Surface No. 8 9 10 12 13 k= -3,94422E+01 -2,80024E+01 -1,96856E+00 -2,47972E+00 9,00000E+01 A4 = -2,547413 1E+00 2,0295683E-02 5,4399149E-01 1,7305272E-01 1,1730 192E+00 A6 = 1,7457960E+01 -2,0971101E+00 -6,0581295E+00 -4,3842946E+00 -9,5455083E+00 A8 = -8,6219739E+01 1,7659470E+01 3,9973663E+01 -2,3516638E+01 3,7541743E+01 A10 = 2,4879845E+02 -9,1435113E+01 -1,7159878E+02 3,0893814E+02 -9,7905549E+01 A12 = -1,7780983E+02 3,0470668E+02 4,6062798E+02 -1,4324758E+03 1,7930555E+02 A14 = -1,3172972E+03 -6,4484389E+02 -7,600813 1E+02 3,7924897E+03 -2,3514899E+02 A16 = 4,5620677E+03 8,1415334E+02 7,4125118E+02 -6,1636354E+03 2,2162180E+02 A18 = -5,6476782E+03 -5,3992966E+02 -3,8733487E+02 6,0689709E+03 -1,4857728E+02 A20 = 2,4007669E+03 1,3894135E+02 8,2663763E+01 -3,3196273E+03 6,8966446E+01 A22 = 7,7297846E+02 -2,1010829E+01 A24 = 3,7691910E+00 A26 = -3,0107835E-01

[0108] In the second embodiment, the equation for the aspherical surface profiles of the aforementioned lens elements is the same as in the first. The definitions of these parameters, listed in the table below, also correspond to those of the first embodiment with the corresponding values ​​for the second embodiment, so their explanation will not be repeated.

[0109] Furthermore, these parameters can be calculated from TABLE 2A and TABLE 2B and satisfy the conditions listed in TABLE 2C below. TABLE 2C f [mm] 1,37 TL / f 2,32 Fno 1,75 TL / ImgH 1,93 HFOV [degree] 69,0 R2 / R3 1,23 (V2+V4) / (V3+V5) 2,61 R4 / CT2 -3,87 V4 / V5 2,88 R6 / f 2,62 (CT2+CT4) / (CT1+CT3+CTS) 1,66 R9 / f -0,52 (CT4+CT5) / T45 2,14 (f3+f5) / f4 -4,73 (T12+T45) / (T23+T34) 8,10 f12 / f 1,71 |CT4 / R7+CT4 / R8| 0,11 f2 / CT2 3,86 CT4 / T45 1,56 Y52 / Y11 1,29 CTmax / CTmin 3,62 Y52 / YS 2,65 3. Embodiment

[0110] Fig. 3A is a schematic view of an imaging apparatus 3 according to the third embodiment of the present disclosure. Fig.3B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the third embodiment.

[0111] In Fig.3A, the imaging device 3 includes an imaging optical lens array according to the present disclosure and an image sensor IS. The imaging optical lens array includes, in order from an object side to an image side along an optical path, a first lens element E1, a stop ST, a second lens element E2, a stop S1, a third lens element E3, a fourth lens element E4, a stop S2, a fifth lens element E5, a filter E6, and an image surface IMG. The image sensor IS is arranged on or near the image surface IMG. The imaging optical lens array includes five lens elements (E1, E2, E3, E4, and E5), with no additional lens element arranged between the adjacent lens elements.

[0112] The first lens element E1 has a negative refractive power and is made of plastic. The first lens element E1 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has an inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0113] The second lens element E2 has a positive refractive power and is made of plastic. The second lens element E2 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0114] The third lens element E3 has a negative refractive power and is made of plastic. The third lens element E3 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points and a convex critical point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0115] The fourth lens element E4 has a positive refractive power and is made of plastic. The fourth lens element E4 has an object-side surface that is convex in a paraxial region and has two inflection points in an off-axis region, and an image-side surface that is convex in a paraxial region and has one inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0116] The fifth lens element E5 has a negative refractive power and is made of plastic. The fifth lens element E5 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0117] The E6 filter is located between the fifth lens element E5 and the image area IMG. The E6 filter is made of glass and does not affect the focal length of the optical imaging lens assembly.

[0118] The detailed optical data of the third embodiment are shown in TABLE 3A and the aspherical surface data in TABLE 3B. TABLE 3A (3rd embodiment) f=1.28mm. Fno = 1.69. HFOV = 55.0 degrees Surface No. Radius of curvature thickness material index Abbe number focal length 0 object Plano 450,000 1 Lens 1 112,20240 (ASP) 0,329 plastic 1,587 28,3 -3,64 2 2,09386 (ASP) 0,468 3 App. Aperture Plano 0,023 4 Lens 2 2,34716 (ASP) 0,450 plastic 1,544 56,0 1,60 5 -1,28496 (ASP) -0,128 6 aperture Plano 0,148 7 Lens 3 -4,69230 (ASP) 0,180 plastic 1,614 25,6 -3,64 8 4,32480 (ASP) 0,139 9 Lens 4 1,78736 (ASP) 0,720 plastic 1,544 56,0 1,06 10 -0,72657 (ASP) -0,359 11 aperture Plano 0,675 12 Lens 5 -3,23550 (ASP) 0,245 plastic 1,669 19,5 -1,06 13 0,93794 (ASP) 0,150 14 filter Plano 0,145 Glass 1,517 64,2 - 15 Plano 0,205 16 Image surface Plano - The reference wavelength is the d-line at 587.6 nm. The effective radius of the aperture (S1) on surface No. 6 is 0.520 mm. The effective radius of the aperture (S2) on surface No. 11 is 0.870 mm. TABLE 3B Aspherical coefficient Surface No. 1 2 4 5 7 k= 0,00000E+00 -3,14270E+01 -1,20119E+01 1,82739E+00 3,02788E+01 A4 = 6,9738349E-01 1,0148161E+00 2,4020895E-01 -5,5934421E-01 -2,1420142E+00 A6 = -4,4811680E-01 1,9995143E+01 -1,2349718E+00 4,4469090E+00 2,0420750E+01 A8 = 2,4033699E+00 -3,2073572E+02 2,3069871E+01 -9,5146518E+00 -1,8930668E+02 A10 = 1,4767657E+01 2,8082730E+03 -3,1526077E+02 -1,9255697E+01 1,5572223E+03 A12 = 3,6956329E+01 -1,4260716E+04 1,9177741E+03 -1,6408805E+03 -1,0806543E+04 A14 = 4,9749638E+01 4,2036102E+04 -5,9837796E+03 1,4802033E+04 4,8865865E +04 A16 = 3,4665932E+01 -6,5508441E+04 6,3935329E+03 -5,0914270E+04 -1,3131865E+05 A18 = 9,6147509E+00 4,1046023E+04 7,9377987E+04 1,9781426E+05 A20 = -4,6566715E+04 -1,3192218E+05 Surface No. 8 9 10 12 13 k = -4,34848E+01 -3,16588E+01 -2,06948E+00 3,93788E+00 -5,92469E+00 A4 = 1,5463655E+00 -6,1760213E-02 4,9076796E-01 -5,6616527E-01 -1,4986947E-01 A6 = 1,1893374E+00 -2,8142479E-01 -3,5253229E+00 4,0296666E+00 -2,2271592E+00 A8 = 7,7728080E+01 -1,5786213E+00 1,5590219E+01 -6,6529592E+01 9,0439073E+00 A10 = 8,7094186E+02 2,8594559E+01 -4,8493291E+01 4,2254237E+02 -1,8959186E+01 A12 = 4,9591761E+03 -1,5163767E+02 9,7511118E+01 -1,4925869E+03 2,6010194E+01 A14 = 1,7075979E+04 4,1473002E+02 -1,1550606E+02 3,2546273E+03 -2,5552578E+01 A16 = 3,5728133E+04 -6,4712533E+02 6,5599162E+01 -4,4888175E+03 1,8730426E+01 A18 = 4,1403060E+04 5,5509397E+02 -4,9661565E+00 3,8199645E+03 -1,0278038E+01 A20 = 2,0275273E+04 -2,0363163E+02 -6,6718299E+00 -1,8309349E+03 4,0800750E+00 A22 = 3,7787499E+02 -1,0915656E+00 A24 = 1,7403779E-01 A26 = -1,2455572E-02

[0119] In the third embodiment, the equation for the aspherical surface profiles of the aforementioned lens elements is the same as in the first embodiment. The definitions of these parameters, listed in the table below, are also the same as in the first embodiment, with the corresponding values ​​for the third embodiment, so their explanation will not be repeated.

[0120] Furthermore, these parameters can be calculated from TABLE 3A and TABLE 3B and satisfy the conditions listed in TABLE 3C below. TABLE 3C f [mm] 1,28 TL / f 2,65 Fno 1,69 TL / ImgH 2,22 HFOV [degree] 55,0 R2 / R3 0,89 (V2+V4) / (V3+V5) 2,49 R4 / CT2 -2,86 V4 / V5 2,88 R6 / f 3,38 (CT2+CT4)(CT1+CT3+CT5) 1,55 R9 / f -2,53 (CT4+CT5) / T45 3,05 (f3+f5) / f4 -4,45 (T12+T45) / (T23+T34) 5,08 f12 / f 1,66 |CT4 / R7+CT4 / R8| 0,59 f2 / CT2 3,55 CT4 / T45 2,28 Y52 / Y11 1,34 CTmax / CTmin 4,00 Y52 / YS 2,86 4. Embodiment

[0121] Fig. 4A is a schematic view of an imaging apparatus 4 according to the fourth embodiment of the present disclosure. Fig. 4B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the fourth embodiment.

[0122] In Fig.4A, the imaging device 4 includes an imaging optical lens array according to the present disclosure and an image sensor IS. The imaging optical lens array includes, in order from an object side to an image side along an optical path, a first lens element E1, a stop ST, a second lens element E2, a stop S1, a third lens element E3, a fourth lens element E4, a stop S2, a fifth lens element E5, a filter E6, and an image surface IMG. The image sensor IS is arranged on or near the image surface IMG. The imaging optical lens array includes five lens elements (E1, E2, E3, E4, and E5), with no additional lens element arranged between the adjacent lens elements.

[0123] The first lens element E1 has a negative refractive power and is made of plastic. The first lens element E1 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0124] The second lens element E2 has a positive refractive power and is made of plastic. The second lens element E2 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0125] The third lens element E3 has a negative refractive power and is made of plastic. The third lens element E3 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points and a convex critical point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0126] The fourth lens element E4 has a positive refractive power and is made of plastic. The fourth lens element E4 has an object-side surface that is convex in a paraxial region and has two inflection points in an off-axis region, and an image-side surface that is convex in a paraxial region and has one inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0127] The fifth lens element E5 has a negative refractive power and is made of plastic. The fifth lens element E5 has an object-side surface that is concave in a paraxial region and has one inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region and has three inflection points in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0128] The E6 filter is located between the fifth lens element E5 and the image area IMG. The E6 filter is made of glass and does not affect the focal length of the optical imaging lens assembly.

[0129] The detailed optical data of the fourth embodiment are shown in TABLE 4A and the aspherical surface data in TABLE 4B. TABLE 4A (4th embodiment) f = 1.60mm. Fno = 1.85. HFOV = 62.4 degrees Surface No. Radius of curvature thickness material index Abbe number focal length 0 object Plano 500,000 1 Lens 1 20,35340 (ASP) 0,220 plastic 1,545 56,1 -4,45 2 2,15746 (ASP) 0,462 3 App. Aperture Plano -0,015 4 Lens 2 1,75421 (ASP) 0,478 plastic 1,545 56,1 1,68 5 -1,73055 (ASP) -0,095 6 aperture Plano 0,125 7 Lens 3 -10,78440 (ASP) 0,200 plastic 1,669 19,5 -3,15 8 2,64334 (ASP) 0,091 9 Lens 4 1,18521 (ASP) 0,672 plastic 1,545 56,1 1,23 10 -1,22673 (ASP) -0,299 11 aperture Plano 0,752 12 Lens 5 -0,64174 (ASP) 0,251 plastic 1,587 28,3 -1,14 13 -18,88340 (ASP) 0,150 14 filter Plano 0,145 Glass 1,517 64,2 - 15 Plano 0,134 16 Image surface Plano - The reference wavelength is the d-line at 587.6 nm. The effective radius of the aperture (S1) on surface No. 6 is 0.550 mm. The effective radius of the aperture (S2) on surface No. 11 is 0.875 mm. TABLE 4B Aspherical coefficient Surface No. 1 2 4 5 7 k= 9,00000E+01 -6,57354E+01 -5,37955E+00 3,47726E+00 -4,28076E+01 A4 = 6,6188743E-01 1,6244715E+00 1,9685817E-01 -1,9763097E+00 -3,2337743E+00 A6 = -1,2421887E+00 2,3788756E+00 6,6343533E-01 3,3490600E+01 5,0597721E+01 A8 = 2,0961293E+00 -7,4272594E+01 -1,8148187E+01 -3,6980872E+02 -5,7367932E+02 A10 = -2,4657656E+00 6,1729455E+02 1,5776214E+02 2,6690644E+03 4,4840331E+03 A12 = 9,7663816E-01 -2,6805761E+03 -8,0037443E+02 -1,3280126E+04 -2,4110391E+04 A14 = 8,7135933E-01 6,5399708E+03 1,9963163E+03 4,4296301E+04 8,6190143E+04 A16 = -1,0179448E+00 -8,3473408E+03 -2,1488199E+03 -9,3797545E+04 -1,9475807E+05 A18 = 2,8809042E-01 4,2701280E+03 1,1321635E+05 2,5200046E+05 A20 = -5,8993742E+04 -1,4221168E+05 Surface No. 8 9 10 12 13 k= -9,80874E+00 -1,95490E+01 -1,68345E+00 -2,46377E+00 -6,10104E+00 A4 = -2,5586321E+00 -2,9593995E-01 1,8521011E-01 -2,7622001E-01 6,7562633E-01 A6 = 2,1909074E+01 3,3381962E+00 -1,6606927E+00 -3,3325587E+00 -5,5982034E+00 A8 = -1,4732220E+02 -2,5067746E+01 6,7323393E+00 -1,5980045E+00 2,2058787E+01 A10 = 7,3756834E+02 1,3004724E+02 -1,3529740E+01 1,0634992E+02 -5,9584238E+01 A12 = -2,6445963E+03 -4,5887056E+02 -5,4803984E+00 -5,5323880E+02 1,1558086E+02 A14 = 6,5335805E+03 1,0584417E+03 8,4899618E+01 1,4857184E+03 -1,6292423E+02 A16 = -1,0526672E+04 -1,5194534E+03 -1,6934311E+02 -2,3504693E+03 1,6653588E+02 A18 = 9,9965639E+03 1,2208727E+03 1,4303293E+02 2,1999657E+03 -1,2175653E+02 A20 = -4,2048185E+03 -4,1470228E+02 -4,4620571E+01 -1,1258404E+03 6,1915855E+01 A22 = 2,4243427E+02 -2,0777861E+01 A24 = 4,1358726E+00 A26 = -3,7001405E-01

[0130] In the fourth embodiment, the equation for the aspherical surface profiles of the aforementioned lens elements is the same as in the first embodiment. The definitions of these parameters, listed in the table below, are also the same as in the first embodiment with the corresponding values ​​for the fourth embodiment, so their explanation will not be repeated.

[0131] Furthermore, these parameters can be calculated from TABLE 4A and TABLE 4B and satisfy the conditions listed in TABLE 4C below. TABLE 4C f [mm] 1,60 TL / f 2,05 Fno 1,85 TL / ImgH 2,06 HFOV [degree] 62,4 R2 / R3 1,23 (V2+V4) / (V3+V5) 2,35 R4 / CT2 -3,62 V4 / V5 1,98 R6 / f 1,65 (CT2+CT4) / (CT1+CT3+CTS) 1,71 R9 / f -0,40 (CT4+CT5) / T45 2,04 (f3+f5) / f4 -3,50 (T12+T45) / (T23+T34) 7,44 f12 / f 1,39 |CT4 / R7+CT4 / R8| 0,02 f2 / CT2 3,51 CT4 / T45 1,48 Y52 / Y11 1,30 CTmax / CTmin 3,36 Y52 / YS 2,48 5. Embodiment

[0132] Fig. 5A is a schematic view of an imaging apparatus 5 according to the fifth embodiment of the present disclosure. Fig. 5B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the fifth embodiment.

[0133] In Fig.5A, the imaging device 5 includes an imaging optical lens array according to the present disclosure and an image sensor IS. The imaging optical lens array includes, in order from an object side to an image side along an optical path, a first lens element E1, a stop ST, a second lens element E2, a stop S1, a third lens element E3, a fourth lens element E4, a fifth lens element E5, a filter E6, and an image surface IMG. The image sensor IS is arranged on or near the image surface. The imaging optical lens array includes five lens elements (E1, E2, E3, E4, and E5), with no additional lens element arranged between the adjacent lens elements.

[0134] The first lens element E1 has a negative refractive power and is made of plastic. The first lens element E1 has an object-side surface that is concave in a paraxial region thereof and has two inflection points in an off-axis region thereof, and an image-side surface that is concave in a paraxial region thereof and has one inflection point in an off-axis region thereof. Both the object-side surface and the image-side surface are aspherical.

[0135] The second lens element E2 has a positive refractive power and is made of glass. The second lens element E2 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0136] The third lens element E3 has a negative refractive power and is made of plastic. The third lens element E3 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points and a convex critical point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0137] The fourth lens element E4 has a positive refractive power and is made of plastic. The fourth lens element E4 has an object-side surface that is convex in a paraxial region and has two inflection points in an off-axis region, and an image-side surface that is convex in a paraxial region and has one inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0138] The fifth lens element E5 has a negative refractive power and is made of plastic. The fifth lens element E5 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0139] The E6 filter is located between the fifth lens element E5 and the image area IMG. The E6 filter is made of glass and does not affect the focal length of the optical imaging lens assembly.

[0140] The detailed optical data of the fifth embodiment are shown in TABLE 5A and the aspherical surface data in TABLE 5B. TABLE 5A (5th embodiment) f=1.22mm. Fno = 1.83. HFOV = 59.9 degrees Surface No. Radius of curvature thickness material index Abbe number focal length 0 object Plano 450,000 1 Lens 1 -59,29780 (ASP) 0,339 plastic 1,545 56,1 -2,80 2 1,57080 (ASP) 0,580 3 App. Aperture Plano -0,018 4 Lens 2 1,74754 (ASP) 0,480 Glass 1,589 61,2 1,36 5 -1,32175 (ASP) -0,117 6 aperture Plano 0,147 7 Lens 3 -5,33670 (ASP) 0,200 plastic 1,650 21,8 -2,74 8 2,71633 (ASP) 0,097 9 Lens 4 1,32332 (ASP) 0,669 plastic 1,544 56,0 1,03 10 -0,79697 (ASP) 0,289 11 Lens 5 -1,26257 (ASP) 0,241 plastic 1,614 25,6 -1,11 12 1,59917 (ASP) 0,150 13 filter Plano 0,110 Glass 1,517 64,2 - 14 Plano 0,223 15 Image surface Plano - The reference wavelength is the d-line at 587.6 nm. The effective radius of the aperture (S1) on surface No. 6 is 0.550 mm. TABLE 5B Aspherical coefficient Surface No. 1 2 4 5 7 k= 0,00000E+00 -3,15362E+01 -9,15387E+00 1,73864E+00 3,73383E+01 A4 = 6,9790748E-01 1,7366730E+00 2,9064255E-01 5,8815558E-02 -1,5857784E+00 A6 = -9,1771124E-0 1 9,8059729E+00 -2,0976099E+00 -1,2397012E+01 1,1812480E+01 A8 = 8,1863209E-01 -1,8157605E+02 2,3326080E+01 2,2303042E+02 -6,5347571E+01 A10 = 5,6857042E-01 1,5759946E+03 -3,2403625E+02 -2,2341317E+03 6,0837882E+01 A12 = -2,4300794E+00 -7,7547099E+03 2,6539393E+03 1,2266122E+04 9,8693705E+02 A14 = 2,7804945E+00 2,2227725E+04 -1,2328606E+04 -3,9247612E+04 -6,8489689E+03 A16 = -1,5894290E+00 -3,3837891E+04 2,1947970E+04 7,2747056E+04 2,2448328E+04 A18 = 3,7484204E-01 2,0704067E+04 -7,3557085E+04 -3,3950868E+04 A20 = 3,4044042E+04 1,7389394E+04 Surface No. 8 9 10 11 12 k= -2,33135E+01 -2,60403E+01 -2,59087E+00 -2,57301E+00 0,00000E+00 A4 = -2,0289942E+00 3,1326188E-02 6,5144107E-01 7,2022105E-01 7,4850105E-01 A6 = 1,2882396E+01 -1,4701076E+00 -5,5491359E+00 -7,4311785E+00 -1,1547470E+01 A8 = -7,1216604E+01 1,0360655E+01 3,0719525E+01 -1,1561914E+01 5,6568981E+01 A10 = 3,3950155E+02 -4,6312206E+01 -1,2050804E+02 2,7317036E+02 -1,7555438E+02 A12 = -1,4378818E+03 1,3996604E+02 3,1280607E+02 -1,3385080E+03 3,7593533E+02 A14 = 4,6685850E+03 -3,0289296E+02 -5,0987734E+02 3,5690573E+03 -5,6937622E+02 A16 = -9,9199968E+03 4,2019016E+02 4,8638909E+02 -5,7797522E+03 6,1285728E+02 A18 = 1,2115758E+04 -3,0498418E+02 -2,4042439E+02 5,6668665E+03 -4,6480606E+02 A20 = -6,3756862E+03 8,2146090E+01 4,6067860E+01 -3,0930565E+03 2,4238069E+02 A22 = 7,2048514E+02 -8,2616542E+01 A24 = 1,6560219E+01 A26 = -1,4795609E+00

[0141] In the fifth embodiment, the equation for the aspherical surface profiles of the aforementioned lens elements is the same as in the first embodiment. The definitions of these parameters, listed in the table below, are also the same as in the first embodiment with the corresponding values ​​for the fifth embodiment, so their explanation will not be repeated.

[0142] Furthermore, these parameters can be calculated using TABLE 5A and TABLE 5B and satisfy the conditions listed in TABLE 5C below. TABLE 5C f [mm] 1,22 TL / f 2,78 Fno 1,83 TL / ImgH 2,22 HFOV [degree] 59,9 R2 / R3 0,90 (V2+V4) / (V3+V5) 2,48 R4 / CT2 -2,75 V4 / V5 2,19 R6 / f 2,22 (CT2+CT4) / (CT1+CT3+CTS) 1,47 R9 / f -1,03 (CT4+CT5) / T45 3,15 (f3+f5) / f4 -3,75 (T12+T45) / (T23+T34) 6,70 f12 / f 1,42 |CT4 / R7+CT4 / R8| 0,33 f2 / CT2 2,83 CT4 / T45 2,31 Y52 / Y11 1,19 CTmax / CTmin 3,35 Y52 / YS 2,93 6. Embodiment

[0143] Fig. 6A is a schematic view of an imaging apparatus 6 according to the sixth embodiment of the present disclosure. Fig. 6B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging device according to the sixth embodiment.

[0144] In Fig.6A, the imaging device 6 includes an imaging optical lens array according to the present disclosure and an image sensor IS. The imaging optical lens array includes, in order from an object side to an image side along an optical path, a first lens element E1, a stop ST, a second lens element E2, a stop S1, a third lens element E3, a fourth lens element E4, a fifth lens element E5, a filter E6, and an image surface IMG. The image sensor IS is arranged on or near the image surface IMG. The imaging optical lens array includes five lens elements (E1, E2, E3, E4, and E5), with no additional lens element arranged between the adjacent lens elements.

[0145] The first lens element E1 has a negative refractive power and is made of plastic. The first lens element E1 has an object-side surface that is concave in a paraxial region thereof and has two inflection points in an off-axis region thereof, and an image-side surface that is concave in a paraxial region thereof and has one inflection point in an off-axis region thereof. Both the object-side surface and the image-side surface are aspherical.

[0146] The second lens element E2 has a positive refractive power and is made of plastic. The second lens element E2 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0147] The third lens element E3 has a negative refractive power and is made of plastic. The third lens element E3 has an object-side surface that is convex in a paraxial region and has two inflection points in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points and a convex critical point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0148] The fourth lens element E4 has a positive refractive power and is made of plastic. The fourth lens element E4 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region and has an inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0149] The fifth lens element E5 has a negative refractive power and is made of plastic. The fifth lens element E5 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0150] The E6 filter is located between the fifth lens element E5 and the image area IMG. The E6 filter is made of glass and does not affect the focal length of the optical imaging lens assembly.

[0151] The detailed optical data of the sixth embodiment are shown in TABLE 6A and the aspherical surface data in TABLE 6B. TABLE 6A (6th embodiment) f = 1.05mm. Fno = 1.88. HFOV = 62.5 degrees Surface No. Radius of curvature thickness material index Abbe number focal length 0 object Plano 400,000 1 Lens 1 -7,06280 (ASP) 0,416 plastic 1,545 56,1 -2,19 2 1,46975 (ASP) 0,549 3 App. Aperture Plano -0,010 4 Lens 2 1,65229 (ASP) 0,472 plastic 1,544 56,0 1,48 5 -1,40546 (ASP) -0,083 6 aperture Plano 0,113 7 Lens 3 2,57829 (ASP) 0,180 plastic 1,705 14,0 -8,56 8 1,75442 (ASP) 0,112 9 Lens 4 2,62622 (ASP) 0,563 plastic 1,544 56,0 1,00 10 -0,63364 (ASP) 0,256 11 Lens 5 -1,77147 (ASP) 0,240 plastic 1,639 23,5 -1,14 12 1,29510 (ASP) 0,150 13 filter Plano 0,145 Glass 1,517 64,2 - 14 Plano 0,211 15 Image surface Plano - The reference wavelength is the d-line at 587.6 nm. The effective radius of the aperture (S1) on surface No. 6 is 0.545 mm. TABLE 6B Aspherical coefficient Surface No. 1 2 4 5 7 k = 0,00000E+00 -2,86429E+01 -1,25943E+01 2,27027E+00 0,00000E+00 A4 = 7,5077834E-01 2,2333224E+00 -1,0095526E-02 -3,2872567E-01 -1,3510294E+00 A6 = -1,2601139E+00 7,0855609E+00 1,5215761E+01 -3,1624596E+01 -1,6369035E+01 A8 = 1,7769380E+00 -1,9560532E+02 -4,3535096E+02 6,9973104E+02 4,2542278E+02 A10 = -1,2204927E+00 2,0571744E+03 5,9781531E+03 -8,1571767E+03 -4,9978307E+03 A12 = -3,4937222E-01 -1,1757859E+04 -4,4902407E+04 5,6920098E+04 3,4401741E+04 A14 = 1,3108483E+00 3,8454548E+04 1,7020362E+05 -2,4684579E+05 -1,4521019E+05 A16 = -9,2557712E-01 -6,6135258E+04 -2,5485213E+05 6,4848780E+05 3,6420601E+05 A18 = 2,2246328E-01 4,5463236E+04 -9,4519334E+05 -4,9157420E+05 A20 = 5,9033478E+05 2,7244942E+05 Surface No. 8 9 10 11 12 k= -1,54430E+01 -4,13675E+01 -3,39128E+00 -6,25441E+00 0,00000E+00 A4 = -5,8820450E-01 2,3249742E-01 5,2929555E-01 1,9755016E+00 1,6163840E+00 A6 = -7,4678358E+00 -4,3506287E+00 -4,5903244E+00 -1,5903783E+01 -2,1501987E+01 A8 = 1,2560686E+02 3,3423800E+01 1,9212427E+01 6,1039757E+00 1,1121066E+02 A10 = -1,0532619E+03 -1,6086335E+02 -3,5664657E+01 3,7415180E+02 -3,6804323E+02 A12 = 5,3182495E+03 4,7396045E+02 -1,4004253E+01 -2,1355080E+03 8,4326862E+02 A14 = -1,6696639E+04 -8,2678843E+02 2,0206472E+02 6,0271236E+03 -1,3705686E+03 A16 = 3,1674377E+04 7,5941333E+02 -4,0374676E+02 -1,0023581E+04 1,5865226E+03 A18 = -3,3015262E+04 -2,1729762E+02 3,6096868E+02 9,9476765E+03 -1,2959363E+03 A20 = 1,4506892E+04 -9,0696536E+01 -1,2470929E+02 -5,4427620E+03 7,2864051E+02 A22 = 1,2603935E+03 -2,6805388E+02 A24 = 5,8051761E+01 A26 = -5,6100072E+00

[0152] In the sixth embodiment, the equation for the aspherical surface profiles of the aforementioned lens elements is the same as in the first embodiment. The definitions of these parameters, listed in the table below, are also the same as those of the first embodiment with the corresponding values ​​for the sixth embodiment, so their explanation will not be repeated.

[0153] Furthermore, these parameters can be calculated from TABLE 6A and TABLE 6B and satisfy the conditions listed in TABLE 6C below. TABLE 6C f [mm] 1,05 TL / f 3,16 Fno 1,88 TL / ImgH 2,14 HFOV [degree] 62,5 R2 / R3 0,89 (V2+V4) / (V3+V5) 2,98 R4 / CT2 -2,98 V4 / V5 2,38 R6 / f 1,67 (CT2+CT4) / (CT1+CT3+CT5) 1,24 R9 / f -1,69 (CT4+CT5) / T45 3,14 (f3+f5) / f4 -9,71 (T12+T45) / (T23+T34) 5,60 f12 / f 2,09 |CT4 / R7+CT4 / R8| 0,67 f2 / CT2 3,13 CT4 / T45 2,20 Y52 / Y11 1,11 CTmax / CTmin 3,13 Y52 / YS 3,26 7. Embodiment

[0154] Fig. 7A is a schematic view of an imaging apparatus 7 according to the seventh embodiment of the present disclosure. Fig. 7B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves, and a distortion curve of the imaging apparatus according to the seventh embodiment.

[0155] In Fig.7A, the imaging device 7 includes an imaging optical lens array according to the present disclosure and an image sensor IS. The imaging optical lens array includes, in order from an object side to an image side along an optical path, a first lens element E1, a stop S1, a second lens element E2, an aperture stop ST, a third lens element E3, a fourth lens element E4, a stop S2, a fifth lens element E5, a filter E6, and an image surface IMG. The image sensor IS is arranged on or near the image surface IMG. The imaging optical lens array includes five lens elements (E1, E2, E3, E4, and E5), with no additional lens element arranged between the adjacent lens elements.

[0156] The first lens element E1 has a negative refractive power and is made of plastic. The first lens element E1 has an object-side surface that is concave in a paraxial region thereof and has two inflection points in an off-axis region thereof, and an image-side surface that is concave in a paraxial region thereof and has one inflection point in an off-axis region thereof. Both the object-side surface and the image-side surface are aspherical.

[0157] The second lens element E2 has a positive refractive power and is made of plastic. The second lens element E2 has an object-side surface that is convex in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is convex in a paraxial region. Both the object-side surface and the image-side surface are aspherical.

[0158] The third lens element E3 has a negative refractive power and is made of plastic. The third lens element E3 has an object-side surface that is concave in a paraxial region and an image-side surface that is concave in a paraxial region and has two inflection points and a convex critical point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0159] The fourth lens element E4 has a positive refractive power and is made of plastic. The fourth lens element E4 has an object-side surface that is convex in a paraxial region and an image-side surface that is convex in a paraxial region and has an inflection point in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0160] The fifth lens element E5 has a negative refractive power and is made of plastic. The fifth lens element E5 has an object-side surface that is concave in a paraxial region and has an inflection point in an off-axis region, and an image-side surface that is concave in a paraxial region and has two inflection points in an off-axis region. Both the object-side surface and the image-side surface are aspherical.

[0161] The E6 filter is located between the fifth lens element E5 and the image area IMG. The E6 filter is made of glass and does not affect the focal length of the optical imaging lens assembly.

[0162] The detailed optical data of the seventh embodiment are shown in TABLE 7A and the aspherical surface data in TABLE 7B. TABLE 7A (7th embodiment) f = 1.23mm. Fno = 1.79. HFOV = 62.5 degrees Surface No. Radius of curvature thickness material index Abbé. focal length 0 object Plano infinity 1 Lens 1 -2,28255 (ASP) 0,220 plastic 1,551 44,5 -2,46 2 3,45960 (ASP) 0,558 3 aperture Plano -0,022 4 Lens 2 1,65226 (ASP) 0,415 plastic 1,544 56,0 1,70 5 -1,91287 (ASP) -0,062 6 App. Aperture Plano 0,113 7 Lens 3 -12,60790 (ASP) 0,180 plastic 1,686 18,4 -5,31 8 5,15530 (ASP) 0,147 9 Lens 4 1,32624 (ASP) 0,654 plastic 1,544 56,0 1,21 10 -1,07345 (ASP) -0,226 11 aperture Plano 0,673 12 Lens 5 -1,71796 (ASP) 0,240 plastic 1,686 18,4 -1,35 13 2,12743 (ASP) 0,150 14 filter Plano 0,145 Glass 1,517 64,2 - 15 Plano 0,146 16 Image surface Plano - The reference wavelength is the d-line at 587.6 nm. The effective radius of the aperture (S1) on surface No. 3 is 0.465 mm. The effective radius of the aperture (S2) on surface No. 11 is 0.865 mm. TABLE 7B Aspherical coefficient Surface No. 1 2 4 5 7 k= -9,00000E+01 -9,07056E+00 -7,65397E+00 4,34007E+00 9,00000E+01 A4 = 9,3035410E-01 1,8694812E+00 4,7597478E-01 -1,4474031E+00 -3,0360438E+00 A6 = -8,4429737E-01 6,4224844E+00 -8,5757972E+00 1,0601700E+01 3,7755198E+01 A8 = -2,5103081E+00 -1,1364784E+02 1,3231175E+02 -3,0572138E+01 -4,7503869E+02 A10 = 1,2448114E+01 8,9364359E+02 -1,2301317E+03 -3,0484060E+02 4,9091509E+03 A12 = -2,3650501E+01 -4,0513385E+03 6,1206867E+03 2,8179143E+03 -3,5622886E+04 A14 = 2,3418372E+01 1, 10 12076E+04 -1,5565904E+04 -8,5805180E+03 1,6808407E+05 A16 = -1,2002345E+01 -1,6245560E+04 1,4851366E+04 3,4656389E+03 -4,9052247E+05 A18 = 2,5174837E+00 9,7142375E+03 2,9604053E+04 8,0861086E+05 A20 = -3,9263671E+04 -5,7944972E+05 Surface No. 8 9 10 12 13 k= 3,03822E+01 -1,77916E+01 -2,76877E+00 -4,96821E-01 -9,01072E+00 A4 = -2,0724352E+00 -1,2168139E-01 3,2877258E-01 -4,6308506E-01 4,3801251E-01 A6 = 1,0092819E+01 7,1938031E-01 -4,2651323E+00 2,2966130E+00 -6,6130139E+00 A8 = -1,4130115E+01 -4,6725204E+00 3,0041040E+01 -6,4077136E+01 2,8511253E+01 A10 = -1,8976009E+02 2,5078758E+01 -1,3400833E+02 4,5894911E+02 -7,6969510E+01 A12 = 1,6877623E+03 -8,0300299E+01 3,6847888E+02 -1,7443180E+03 1,4336102E+02 A14 = -6,8695301E+03 1,4669533E+02 -6,1312695E+02 4,0244808E+03 -1,8971471E+02 A16 = 1,5424476E+04 -1,4701463E+02 5,9304982E+02 -5,7995144E+03 1,7924435E+02 A18 = -1,7547511E+04 7,3429007E+01 -3,0120991E+02 5,0989700E+03 -1,1961138E+02 A20 = 7,1646701E+03 -1,3524126E+01 6,1004394E+01 -2,4998752E+03 5,4852463E+01 A22 = 5,2322004E+02 -1,6388142E+01 A24 = 2,8629289E+00 A26 = -2,2123438E-01

[0163] In the seventh embodiment, the equation for the aspherical surface profiles of the aforementioned lens elements is the same as in the first embodiment. The definitions of these parameters, listed in the table below, are also the same as in the first embodiment, with the corresponding values ​​for the seventh embodiment, so their explanation will not be repeated.

[0164] Furthermore, these parameters can be calculated from TABLE 7A and TABLE 7B and satisfy the conditions listed in TABLE 7C below. TABLE 7C f [mm] 1,23 TL / f 2,71 Fno 1,79 TL / ImgH 2,15 HFOV [degree] 62,5 R2 / R3 2,09 (V2+V4) / (V3+V5) 3,05 R4 / CT2 -4,61 V4 / V5 3,05 R6 / f 4,19 (CT2+CT4)(CT1+CT3+CT5) 1,67 R9 / f -1,40 (CT4+CT5) / T45 2,00 (f3+f5) / f4 -5,52 (T12+T45) / (T23+T34) 4,96 f12 / f 2,25 |CT4 / R7+CT4 / R8| 0,12 f2 / CT2 4,09 CT4 / T45 1,46 Y52 / Y11 1,25 CTmax / CTmin 3,63 Y52 / YS 2,62 8. Embodiment

[0165] See Fig. 9. Fig.9 is a three-dimensional schematic view of an imaging device 100 according to the eighth embodiment of the present disclosure. In the present embodiment, the imaging device 100 is a camera module. The imaging device 100 includes an imaging lens assembly 101, a driving device 102, and an image sensor 103. The imaging lens assembly 101 includes the above-described optical imaging lens assembly of the first embodiment, a lens barrel (not further referred to here) for supporting the optical imaging lens assembly, and a holding device (not further referred to here). The imaging lens assembly 101 can alternatively be configured with an optical imaging lens assembly from the other embodiments described above.The imaging device 100 obtains an image from the light convergence in the imaging lens array 101 and achieves focusing by the driving device 102 to form the image on the image sensor 103 (the image sensor IS in the first embodiment), and thereafter outputs the image data.

[0166] The drive device 102 may be an autofocus module driven by a voice coil motor (VCM), a microelectromechanical system (MEMS), a piezoelectric system, shape memory alloys, or other drive systems. The drive device 102 enables the imaging lens assembly 101 to achieve a better imaging position to obtain a clear image at different object distances.

[0167] The imaging device 100 may be equipped with an image sensor 103 (e.g., CMOS, CCD) with high sensitivity and low noise on the image surface to provide accurate and satisfactory image quality from the imaging lens array 101.

[0168] Furthermore, the imaging device 100 may include an image stabilizer 104, which may be a motion sensing element such as an accelerometer, a gyro sensor, or a Hall effect sensor. The image stabilizer 104 in the ninth embodiment is, but is not limited to, a gyro sensor. By adjusting the imaging lens assembly 101 in different axial directions to compensate for image blur due to motion during exposure, image quality can be further improved under dynamic and low-light conditions, and advanced image compensation functions such as optical image stabilization (OIS) or electronic image stabilization (EIS) can also be provided.

[0169] The imaging device 100 of the present disclosure is not limited to applications in smartphones. The imaging device 100 can be used in focus adjustment systems as needed, exhibiting excellent aberration correction and providing satisfactory image quality. For example, the imaging device 100 can be used in a wide variety of applications, such as automotive electronics, drones, smart electronic products, tablet computers, wearable devices, medical devices, precision instruments, surveillance cameras, portable video recorders, identification systems, multi-lens devices, somatosensory recognition devices, virtual reality, motion devices, smart home systems, and other electronic devices. 9. Embodiment

[0170] See Fig. 10A and Fig. 10B. Fig.10A is a front view of an electronic device 200 according to the ninth embodiment. Fig. 10B is a rear view of the Fig. 10A shown electronic device 200.

[0171] In this embodiment, the electronic device 200 is a smartphone. The electronic device 200 includes imaging devices 201, 202, 203, 204, 205, a flash module 209, a focus assist module, an image signal processor, an image software processor, and a display module 210. The imaging devices 201, 202, 203 and the display module 210 are arranged on the same side of the electronic device 200; furthermore, the display module 210 can be a user interface, so that the imaging devices 201, 202, and 203 can serve as front-facing cameras to provide a self-portrait function, but is not limited thereto. The imaging devices 204 and 205 are arranged on the opposite side of the electronic device 200. The focusing assistance module may use, but is not limited to, a laser range sensor module or a Time-of-Flight (ToF) module.The imaging devices 201, 202, 203, 204, and 205 may each include an imaging optical lens assembly of the present disclosure and may each have the same or a similar structure and configuration as the imaging device 100 of the eighth embodiment. Specifically, the imaging devices 201, 202, 203, 204, and 205 may each include an imaging lens assembly, a driving device, an image sensor, and an image stabilizer, and each may include a reflective element for folding the optical path. Furthermore, the imaging lens assembly of each of the imaging devices 201, 202, 203, 204, and 205 may include, for example, an imaging optical lens assembly of the present disclosure, a lens barrel for supporting the imaging optical lens assembly, and a holding device.

[0172] Imaging devices 201 and 205 are each in a wide-angle configuration, imaging devices 202 and 204 are each in an ultra-wide-angle configuration, and imaging device 203 is in a ToF configuration. In this embodiment, imaging devices 201 and 202 have different fields of view, and imaging devices 204 and 205 have different fields of view, so that electronic device 200 can provide different magnifications to achieve an optical zoom effect. Furthermore, imaging device 203 can obtain depth information of an image. Electronic device 200 includes a plurality of imaging devices 201, 202, 203, 204, and 205 as an example, but the number and configuration of imaging devices described in the present disclosure should not be construed in a limiting sense.

[0173] When the user photographs an object, the electronic device 200 uses at least one of the imaging devices 204 and 205 to focus light rays to obtain an image and may activate the flash module 209 for light supplementation. Information about the distance of the object provided by the focus assist module may be used to achieve fast autofocusing, and the image signal processor performs image optimization to further improve the quality of the image produced by the optical imaging lens assembly. The focus assist module may use an infrared or laser focus assist system to achieve fast focusing. In addition, the electronic device 200 may also use at least one of the imaging devices 201, 202, and 203 to take photographs.The display module 210 may be equipped with a touchscreen that interacts with various functions of the image software processor to perform photo capturing and image processing (or a physical button may be used for photo capturing). The image processed by the image software processor may be displayed on the display module 210. 10. Embodiment

[0174] See Fig. 11. Fig. 11 is a rear view of an electronic device 300 according to the tenth embodiment.

[0175] In this embodiment, the electronic device 300 is a smartphone. The electronic device 300 includes imaging devices 304, 305, 306, a flash module 309, a focus assist module, an image signal processor, a display module, and an image software processor (not shown). The imaging devices 304, 305, 306 and the flash module 309 are arranged on the same side of the electronic device 300, while the display module is arranged on the opposite side of the electronic device 300. The imaging devices 304, 305, and 306 may each include an imaging optical lens assembly of the present disclosure and may each have the same or a similar structure and configuration as the imaging device 100 of the eighth embodiment. Explanations in this regard will not be repeated here.

[0176] Imaging device 304 is in an ultra-wide-angle configuration, imaging device 305 is in a wide-angle configuration, and imaging device 306 is in a telephoto configuration. In this embodiment, imaging devices 304, 305, and 306 have different fields of view, allowing electronic device 300 to provide different magnifications to achieve an optical zoom effect. Furthermore, imaging device 306, which is in a telephoto configuration, is provided with a reflective element capable of folding the optical path, so that the total path length of imaging device 306 is not limited by the thickness of electronic device 300.The electronic device 300 includes multiple imaging devices 304, 305, and 306 as an example, but the number and configuration of the imaging devices described in the present disclosure should not be construed in a limiting sense. When the user photographs an object, the electronic device 300 uses at least one of the imaging devices 304, 305, and 306 to focus light rays to obtain an image and can activate the flash module 309 for light supplementation. The following procedure is similar to that described in the previous embodiment and will not be repeated here. 11. Embodiment

[0177] See Fig. 12. Fig. 12 is a rear view of an electronic device 400 according to the eleventh embodiment.

[0178] In this embodiment, the electronic device 400 is a smartphone. The electronic device 400 includes imaging devices 404a, 404b, 405a, 405b, 406a, 406b, 407a, 407b, 408, a flash module 409, a focus assist module, an image signal processor, a display module, and an image software processor (not shown). The imaging devices 404a, 404b, 405a, 405b, 406a, 406b, 407a, 407b, 408 and the flash module 409 are 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. The imaging devices 404a, 404b, 405a, 405b, 406a, 406b, 407a, 407b, and 408 may each include an imaging optical lens assembly of the present disclosure and may each have the same or a similar structure and configuration as the imaging device 100 of the eighth embodiment.Explanations in this regard will not be repeated here.

[0179] Imaging devices 404a and 404b are each in an ultra-wide-angle configuration, imaging devices 405a and 405b are each in a wide-angle configuration, imaging devices 406a, 406b, 407a, and 407b are each in a telephoto configuration, and imaging device 408 is in a ToF configuration. In this embodiment, imaging devices 404a, 404b, 405a, 405b, 406a, 406b, 407a, and 407b have different fields of view, allowing electronic device 400 to provide different magnifications to achieve an optical zoom effect. Furthermore, imaging devices 406a and 406b, both in a telephoto configuration, can each be equipped with a reflective element capable of folding the optical path. In addition, the imaging device 408 can obtain depth information of an image.The electronic device 400 includes a plurality of imaging devices 404a, 404b, 405a, 405b, 406a, 406b, 407a, 407b, and 408 as examples, but the number and configuration of the imaging devices described in the present disclosure should not be construed in a limiting sense. When the user photographs an object, the electronic device 400 uses at least one of the imaging devices 404a, 404b, 405a, 405b, 406a, 406b, 407a, 407b, and 408 to converge light beams to obtain an image and can activate the flash module 409 for light supplementation. The following process is similar to that described in the previous embodiment and will not be repeated here.

Claims

[1] An optical imaging lens assembly comprising five lens elements, the five lens elements being, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element, each of the first to fifth lens elements having an object-side surface facing the object side and an image-side surface facing the image side; wherein the first lens element has a negative refractive power, the image-side surface of the first lens element is concave in a paraxial region thereof, the object-side surface of the second lens element is convex in a paraxial region thereof, the image-side surface of the third lens element is concave in a paraxial region thereof, the object-side surface of the fourth lens element is convex in a paraxial region thereof, the object-side surface of the fifth lens element is concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region thereof; where an aperture number of the imaging optical lens assembly is Fno, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a central thickness of the fourth lens element along the optical path is CT4, an axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are met: 1.5 <Fno<2,0; 1.8<(V2+V4) / (V3+V5)<4.0; and 0.25 <CT4 / T45<5,5. [2] An imaging optical lens assembly according to claim 1, wherein the f-number of the imaging optical lens assembly is Fno and the following condition is satisfied: 1.6 <Fno<1,9. [3] The optical imaging lens assembly according to claim 2, wherein the f-number of the optical imaging lens assembly is Fno, the Abbe number of the second lens element is V2, the Abbe number of the third lens element is V3, the Abbe number of the fourth lens element is V4, the Abbe number of the fifth lens element is V5, the central thickness of the fourth lens element along the optical path is CT4, the axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are satisfied: 1.69≤Fno≤1.88; 2.35≤(V2+V4) / (V3+V5)≤3.05; 1.98≤V4 / V5≤3.05; 2.00≤(CT4+CT5) / T45≤4.01; and 1.46≤CT4 / T45≤2.

98. [4] The optical imaging lens assembly according to claim 1, wherein a central thickness of the first lens element along the optical path is CT1, a central thickness of the second lens element along the optical path is CT2, a central thickness of the third lens element along the optical path is CT3, the central thickness of the fourth lens element along the optical path is CT4, a central thickness of the fifth lens element along the optical path is CT5, and the following condition is satisfied: 0.80<(CT2+CT4) / (CT1+CT3+CT5)<1.

9. [5] An optical imaging lens assembly according to claim 1, wherein a radius of curvature of the image-side surface of the first lens element is R2, a radius of curvature of the object-side surface of the second lens element is R3, and the following condition is satisfied: 0.75 <R2 / R3<2,3. [6] An optical imaging lens assembly according to claim 1, wherein a focal length of the third lens element is f3, a focal length of the fourth lens element is f4, a focal length of the fifth lens element is f5, and the following condition is satisfied: −11<(f3+f5) / f4<−3.

2. [7] An optical imaging lens assembly according to claim 1, wherein the image-side surface of the third lens element has at least one convex critical point in an off-axis region thereof, the fourth lens element has a positive refractive power, the image-side surface of the fourth lens element is convex in a paraxial region thereof, a maximum distance between the optically effective area of ​​the object-side surface of the first lens element and the optical axis is Y11, a maximum distance between the optically effective area of ​​the image-side surface of the fifth lens element and the optical axis is Y52, and the following condition is satisfied: 0.95 <Y52 / Y11<1,5. [8] An imaging device comprising the imaging optical lens assembly according to claim 1 and an image sensor disposed on an image surface of the imaging optical lens assembly. [9] An electronic device comprising the imaging device according to claim 8. [10] An optical imaging lens assembly having five lens elements, the five lens elements being, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element, each of the first to fifth lens elements having an object-side surface facing the object side and an image-side surface facing the image side; wherein the first lens element has a negative refractive power, the image-side surface of the first lens element is concave in a paraxial region thereof, the image-side surface of the third lens element is concave in a paraxial region thereof, the object-side surface of the fourth lens element is convex in a paraxial region thereof, the object-side surface of the fifth lens element is concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region thereof; where an F-number of the optical imaging lens arrangement is Fno, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a central thickness of the fourth lens element along the optical path is CT4, a central thickness of the fifth lens element along the optical path is CT5, an axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are met: 1.5 <Fno<2,0; 1.8<(V2+V4) / (V3+V5)<4.0; and 1.1<(CT4+CT5) / T45<7.

3. [11] An optical imaging lens assembly according to claim 10, wherein the Abbe number of the second lens element is V2, the Abbe number of the third lens element is V3, the Abbe number of the fourth lens element is V4, the Abbe number of the fifth lens element is V5, and the following condition is satisfied: 2.1<(V2+V4) / (V3+V5)<3.

5. [12] An optical imaging lens assembly according to claim 10, wherein the central thickness of the fourth lens element along the optical path is CT4, the central thickness of the fifth lens element along the optical path is CT5, the axial distance between the fourth lens element and the fifth lens element is T45, and the following condition is satisfied: 1.6<(CT4+CT5) / T45<5.

4. [13] An optical imaging lens assembly according to claim 10, wherein an axial distance between the first lens element and the second lens element is T12, an axial distance between the second lens element and the third lens element is T23, an axial distance between the third lens element and the fourth lens element is T34, the axial distance between the fourth lens element and the fifth lens element is T45, and the following condition is satisfied: 4.0<(T12+T45) / (T23+T34)<15. [14] An optical imaging lens assembly according to claim 10, wherein the central thickness of the fourth lens element along the optical path is CT4, a radius of curvature of the object-side surface of the fourth lens element is R7, a radius of curvature of the image-side surface of the fourth lens element is R8, and the following condition is satisfied: |CT4 / R7+CT4 / R8|<0.

80. [15] An imaging optical lens assembly according to claim 10, wherein a radius of curvature of the image-side surface of the third lens element is R6, a focal length of the imaging optical lens assembly is f, and the following condition is satisfied: 1.1 <R6 / f<7,0. [16] An optical imaging lens assembly according to claim 10, wherein a combined focal length of the first lens element and the second lens element is f12, a focal length of the optical imaging lens assembly is f, and the following condition is satisfied: 1.1 <f12 / f<4,0. [17] The imaging optical lens assembly according to claim 10, wherein the fifth lens element has a negative refractive power, an axial distance between the object-side surface of the first lens element and an image surface is TL, a maximum image height of the imaging optical lens assembly is ImgH, half of a maximum field of view of the imaging optical lens assembly is HFOV, and the following conditions are met: 1.6 <TL / ImgH<2,6; and 49.2 degrees <HFOV<70,3 Grad. [18] An optical imaging lens assembly having five lens elements, the five lens elements being, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element, each of the first to fifth lens elements having an object-side surface facing the object side and an image-side surface facing the image side; wherein the image-side surface of the first lens element is concave in a paraxial region thereof, the second lens element has a positive refractive power, the object-side surface of the second lens element is convex in a paraxial region thereof, the third lens element has a negative refractive power, the object-side surface of the fourth lens element is convex in a paraxial region thereof, the object-side surface of the fifth lens element is concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of at least one of the first to fifth lens elements has at least one inflection point in an off-axis region thereof; where an F-number of the optical imaging lens arrangement is Fno, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a central thickness of the fourth lens element along the optical path is CT4, an axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are satisfied: 1.5 <Fno<2,0; 1.5 <V4 / V5<4,0; and 0.65 <CT4 / T45<4,3. [19] An optical imaging lens assembly according to claim 18, wherein the Abbe number of the fourth lens element is V4, the Abbe number of the fifth lens element is V5, and the following condition is satisfied: 1.7 <V4 / V5<3,5. [20] An optical imaging lens assembly according to claim 18, wherein the central thickness of the fourth lens element along the optical path is CT4, the axial distance between the fourth lens element and the fifth lens element is T45, and the following condition is satisfied: 1.0 <CT4 / T45<3,2. [21] An optical imaging lens assembly according to claim 18, wherein a maximum central thickness among those of the first to fifth lens elements along the optical path is CTmax, a minimum central thickness among those of the first to fifth lens elements along the optical path is CTmin, and the following condition is satisfied: 2.8 <CTmax / CTmin<4,3. [22] An imaging optical lens assembly according to claim 18, further comprising an aperture stop, wherein an axial distance between the object-side surface of the first lens element and an image surface is TL, a focal length of the imaging optical lens assembly is f, a maximum distance between the optically effective area of ​​the image-side surface of the fifth lens element and the optical axis is Y52, a maximum distance between the optically effective area of ​​the aperture stop and the optical axis is YS, and the following conditions are met: 1.5 <TL / f<3,9; and 2.2 <Y52 / YS<3,5. [23] An imaging optical lens assembly according to claim 18, wherein a radius of curvature of the object-side surface of the fifth lens element is R9, a focal length of the imaging optical lens assembly is f, and the following condition is satisfied: −5.0 <R9 / f<−0,10. [24] An optical imaging lens assembly according to claim 18, wherein a focal length of the second lens element is f2, a central thickness of the second lens element along the optical path is CT2, and the following condition is satisfied: 2.4 <f2 / CT2<5,0. [25] An optical imaging lens assembly according to claim 18, wherein the image-side surface of the second lens element is convex in a paraxial region thereof, a radius of curvature of the image-side surface of the second lens element is R4, a central thickness of the second lens element along the optical path is CT2, and the following condition is satisfied: −5.0 <R4 / CT2<−2,0.

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