Optical photography lens assembly, image capture unit and electronic device

Abstract

An optical photography lens assembly comprising four lens elements (E1, E2, E3, and E4), wherein the four lens elements (E1, E2, E3, and E4) comprise, in order from an object side to an image side along an optical path, a first lens element (E1), a second lens element (E2), a third lens element (E3), and a fourth lens element (E4), and wherein each of the four lens elements (E1, E2, E3, and E4) has an object-side surface facing the object side and an image-side surface facing the image side; wherein the first lens element (E1) has a positive refractive power, the third lens element (E3) has a positive refractive power, the object-side surface of the third lens element (E3) is concave in a paraxial region thereof, the image-side surface of the third lens element (E3) is convex in a paraxial region thereof, the object-side surface and the image-side surface of the third lens element (E3) are both aspherical, and the object-side surface and / or the image-side surface of the third lens element (E3) has at least one inflection point (P); and wherein an axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the third lens element (E3) and the fourth lens element (E4) is T34, an axial distance between the image-side surface of the fourth lens element (E4) and an image surface (IMG) is BL, an axial distance between the object-side surface of the first lens element (E1) and the image surface (IMG) is TL, a maximum image height of the optical photography lens arrangement is ImgH, a radius of curvature of the object-side surface of the third lens element (E3) is R5, a radius of curvature of the image-side surface of the third lens element (E3) is R6, a central thickness of the first lens element (E1) is CT1, and a central thickness of the fourth lens element (E4) is CT4, and the following conditions are met: 1.00 < T34 / BL < 10.00 ; 2.20 < T34 / T12; 0.50 < TL / ImgH < 1.30 ; 0.20 < R 5 / R 6 < 100.00 ; and 0.10 < CT1 / CT4 < 1.70.

Description

BACKGROUNDTechnical FieldThe present disclosure relates to a photographing optical lens assembly, an image capturing unit, and an electronic device, and more particularly, to a photographing optical lens assembly and an image capturing unit applicable to an electronic device.DESCRIPTION OF THE RELATED ARTAs semiconductor manufacturing technology has evolved, the performance of image sensors has been improved and the pixel size thereof has been reduced. Therefore, having high image quality becomes one of the indispensable features of an optical system nowadays.Moreover, due to the rapid changes in technology, electronic devices equipped with optical systems tend to be multifunctional for various applications, and thus the functional requirements for the optical systems increase. However, for a conventional optical system, it is difficult to achieve a balance among requirements such as high image quality, low sensitivity, appropriate aperture size, miniaturization, and a desirable field of view.OVERVIEWAccording to an aspect of the present disclosure, a photographing lens assembly includes four lens elements. The four lens elements are a first lens element, a second lens element, a third lens element, and a fourth lens element in order from the object side to an image side along a light path. Each of the four lens elements has an object-side surface facing the object side and an image-side surface facing the image side.Preferably, the first lens element has a positive refracting power. Preferably, the third lens element has a positive refracting power. Preferably, the object-side surface of the third lens element is concave in a triaxial portion thereof. Preferably, the image-side surface of the third lens element is convex in a triaxial portion thereof. Preferably, the object-side surface and the image-side surface of the third lens element are both aspherical. Preferably, the object-side surface and / or the image-side surface of the third lens element has at least one inflection point.When an axial distance between the first lens element and the second lens element is T 12, an axial distance between the third lens element and the fourth lens element is T 34, an axial distance between the image-side surface of the fourth lens element and an image surface is BL, an axial distance between the object-side surface of the first lens element and the image surface is TL, a maximum image height of the photographing optical lens array is ImgH, a radius of curvature of the object-side surface of the third lens element is R 5, a radius of curvature of the image-side surface of the third lens element is R 6, a central thickness of the first lens element is CT 1, and a central thickness of the fourth lens element is CT 4, the following conditions are preferably satisfied:According to another aspect of the present disclosure, a photographing optical lens assembly includes four lens elements. The four lens elements are a first lens element, a second lens element, a third lens element, and a fourth lens element in order from the object side to an image side along a light path. Each of the four lens elements has an object-side surface facing the object side and an image-side surface facing the image side.Preferably, the first lens element has a positive refracting power. Preferably, the image-side surface of the second lens element is convex in a triaxial portion thereof. Preferably, the third lens element has a positive refracting power. Preferably, the object-side surface of the third lens element is concave in a triaxial portion thereof. Preferably, the image-side surface of the third lens element is convex in a triaxial portion thereof. Preferably, the object-side surface and the image-side surface of the third lens element are both aspherical. Preferably, the object-side surface and / or the image-side surface of the third lens element has at least one inflection point.When an axial distance between the first lens element and the second lens element is T12, an axial distance between the third lens element and the fourth lens element is T34, 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 photographing optical lens array is ImgH, a radius of curvature of the image-side surface of the third lens element is R6, a radius of curvature of the image-side surface of the fourth lens element is R5, a focal length of the third lens element is f3, a focal length of the fourth lens element is f4, an axial distance between the object-side surface of the first lens element and the image-side surface of the third lens element is Dr1r6, and an axial distance between the image-side surface of the third lens element and the image-side surface of the fourth lens element is Dr6r8, the following conditions are preferably satisfied:According to another aspect of the foregoing disclosure, an image capturing unit includes any one of the foregoing photographing optical lens arrays and an image sensor, the image sensor being disposed on the image surface of the photographing optical lens array.According to another aspect of the present disclosure, an electronic device includes the above image acquisition unit.BRIEF DESCRIPTION OF THE DRAWINGSThe disclosure may be better understood by reading the following detailed description of the embodiments, with reference to the accompanying drawings as follows: FIG. 1 is a schematic view of an image capturing unit according to the first embodiment of the present disclosure; FIG. 2 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the first embodiment; FIG. 3 is a schematic view of an image capturing unit according to the second embodiment of the present disclosure; FIG. 4 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the second embodiment; FIG. 5 is a schematic view of an image capturing unit according to the third embodiment of the present disclosure; FIG. 6 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the third embodiment; FIG. 7 is a schematic view of an image capturing unit according to the fourth embodiment of the present disclosure; FIG. 8 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the fourth embodiment; FIG. 9 is a schematic view of an image capturing unit according to the fifth embodiment of the present disclosure; FIG. 10 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the fifth embodiment; FIG. 11 is a schematic view of an image capturing unit according to the sixth embodiment of the present disclosure; FIG. 12 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the sixth embodiment; FIG. 13 is a schematic view of an image capturing unit according to the seventh embodiment of the present disclosure; FIG. 14 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the seventh embodiment; FIG. 15 is a schematic view of an image capturing unit according to the eighth embodiment of the present disclosure; FIG. 16 shows spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the eighth embodiment; FIG. 17 is a perspective view of an image capturing unit according to the ninth embodiment of the present disclosure; FIG. 18 is a perspective view of an electronic device according to the tenth embodiment of the present disclosure; FIG. 19 is another perspective view of the electronic device in FIG. 18 ; FIG. 20 is a block diagram of the electronic device in FIG. 18 ; FIG. 21 is a schematic view of an electronic device according to the eleventh embodiment of the present disclosure; FIG. 22 is another schematic view of the electronic device in FIG. 21 ; FIG. 23 is a perspective view of an electronic device according to the twelfth embodiment of the present disclosure; FIG. 24 is a perspective view of an electronic device according to the thirteenth embodiment of the present disclosure; FIG. 25 is another perspective view of the electronic device in FIG. 24 ; FIG. 26 is a schematic view of Y 1R 1 and Y 4R 2 according to the first embodiment of the present disclosure; FIG. 27 is a schematic view of inflection points and critical points on lens surfaces according to the first embodiment of the present disclosure; FIG. 28 is a schematic view showing a configuration of a light deviating element in a photographing optical lens assembly according to an embodiment of the present disclosure; FIG. 29 is a schematic view showing another configuration of a light deviating element in a photographing optical lens assembly according to an embodiment of the present disclosure; and FIG. 30 is a schematic view showing a configuration of two light deviating elements in a photographing optical lens assembly according to an embodiment of the present disclosure.DETAILED DESCRIPTIONA photographing optical lens array comprises four lens elements. The four lens elements are a first lens element, a second lens element, a third lens element, and a fourth lens element in order from the object side to an image side along a light path. Each of the four lens elements of the photographing optical lens assembly has an object-side surface facing the object side and an image-side surface facing the image side.The first lens element has a positive refracting power. Therefore, it is advantageous for providing the primary convergence capability of the photographing optical lens assembly to reduce the system space and meet miniaturization requirements. The image-side surface of the first lens element may be concave in a triaxial portion thereof. Therefore, it is favorable for the correction of astigmatism.The second lens element may have a negative refracting power. Therefore, it is favorable for the correction of spherical aberration. The object-side surface of the second lens element may be concave in a triaxial region thereof. This is advantageous for matching the surface shape and the refracting power of the second lens element to correct aberrations. The image-side surface of the second lens element may be convex in a triaxial portion thereof. This is advantageous for adjusting the running direction of light beams to enlarge an image area.The third lens element has a positive refracting power. Therefore, it is advantageous for effectively adjusting the amount of seating to reduce the overall length of the photographing optical lens assembly. The object-side surface of the third lens element is concave in a triaxial region thereof, and the image-side surface of the third lens element is convex in a multiaxial region thereof. Therefore, it is advantageous for controlling the incident angle of the light on the object-side surface of the third lens element to avoid too large incident angles, which lead to light divergence and poor relative illuminance at the edge.The object-side surface and the image-side surface of the third lens element are both aspherical. Therefore, utilizing the properties of aspherical lens surfaces is advantageous for correcting distortions in the photographing optical lens assembly and reducing the overall length of the photographing optical lens assembly.The object-side surface and / or the image-side surface of the third lens element has at least one inflection point. Therefore, it is advantageous for correcting off-axis aberrations in the photographing optical lens assembly and reducing the overall length of the photographing optical lens assembly. Reference is made to FIG. 27 which shows a schematic view of turning points P on a plurality of lens surfaces according to the first embodiment of the present disclosure. In FIG. 27, the image-side surface of the first lens element E 1 and the image-side surface of the second lens element E 2 each have one inflection point P, the object-side surface and the image-side surface of the third lens element E 3 each have two inflection points P, and the object-side surface and the image-side surface of the fourth lens element E 4 each have three inflection points P. The first embodiment of the present disclosure illustrated in FIG. 27 is only exemplary. Each of the lens elements in various embodiments of the present disclosure may have one or more inflection points.The object-side surface of the fourth lens element may be convex in a triaxial region thereof. Therefore, it is advantageous to balance the refracting power of the fourth lens element to correct coma and astigmatism. The image-side surface of the fourth lens element may be concave in a triaxial portion thereof. This is advantageous for decreasing the focal distance of the photographing optical lens assembly.When an axial distance between the first lens element and the second lens element is T 12, and an axial distance between the third lens element and the fourth lens element is T 34, the following condition is satisfied: 2.20<T 34 / T 12. Therefore, it is advantageous for adjusting the ratio of the axial distance between the third lens element and the fourth lens element to that between the first lens element and the second lens element to increase the image size. Moreover, the following condition may also be satisfied: 2.20<T34 / T12< 10.00. Moreover, the following condition may also be satisfied: 2.40<T34 / T12<5.00. Moreover, the following condition can also be satisfied: 2.76≤T34 / T12≤4.96.When 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 photographing optical lens array (which may be half of the diagonal length of an effective photosensitive surface of an image sensor) is ImgH, the following condition is satisfied: 0.50<TL / ImgH<1.40. Moreover, the following condition may also be satisfied: 0.50<TL / ImgH<1.30 In addition, the following condition may also be satisfied: 0.80<TL / ImgH<1.25 In addition, the following condition may also be satisfied: 1.07≤TL / ImgH≤1.21.When the axial distance between the third lens element and the fourth lens element is T34, and an axial distance between the image-side surface of the fourth lens element and the image surface is BL, the following condition may be satisfied: 1.00<T34 / BL<10.00. Therefore, it is preferable to adjust the ratio of the axial distance between the third lens element and the fourth lens element to the back focal length of the photographing optical lens assembly in order to reduce the size of the photographing optical lens assembly. Moreover, the following condition may also be satisfied: 1.10<T34 / BL<5.00. Moreover, the following condition may also be satisfied: 1.05≤T34 / BL≤2.45.When a radius of curvature of the object-side surface of the third lens element is R 5 and a radius of curvature of the image-side surface of the third lens element is R 6, the following condition may be satisfied: 0.20<R 5 / R 6<100.00. This is advantageous for matching the surface shape and the refracting power of the third lens element to correct the focal distance. Moreover, the following condition may also be satisfied: 0.50<R5 / R6< 10.00. Moreover, the following condition may also be satisfied: 1.40<R5 / R6<5.00. Moreover, the following condition may also be satisfied: 1.50≤R5 / R6≤2.86.When a central thickness of the first lens element is CT1 and a central thickness of the fourth lens element is CT4, the following condition can be satisfied: 0.10<CT1 / CT4<1.70. Moreover, the following condition may also be satisfied: 0.20<CT1 / CT4<1.55. Moreover, the following condition may also be satisfied: 0.45≤CT1 / CT4≤1.30.When the radius of curvature of the image-side surface of the third lens element is R6 and a radius of curvature of the image-side surface of the fourth lens element is R8, the following condition can be satisfied: -1.70<R6 / R8. Therefore, it is preferable to adjust the shape of the image-side surfaces of the third lens element and the fourth lens element so as to adjust the optical path of the photographing optical lens assembly to collectively correct aberrations and improve the image quality. Moreover, the following condition can also be satisfied: -1.65<R6 / R8<1.00. Moreover, the following condition can also be satisfied: -3.04≤R6 / R8≤-0.79, Moreover, the following condition can also be satisfied: -1.65<R6 / R8<-0.20.When a focal length of the third lens element is f 3 and a focal length of the fourth lens element is f 4, the following condition may be satisfied: -2.50<f 3 / f 4<10.00. Therefore, it is preferable to adjust the ratio of the focal length of the third lens element to that of the fourth lens element in order to balance the refractive power distribution of the photographing optical lens assembly. Moreover, the following condition may also be satisfied: -2.30<f3 / f4<0.60. In addition, the following condition may also be satisfied: -2.00<f3 / f4<0.50.When an axial distance between the object-side surface of the first lens element and the image-side surface of the third lens element is Dr1r6, and an axial distance between the image-side surface of the third lens element and the image-side surface of the fourth lens element is Dr6r8, the following condition may be satisfied: 0.20<Dr1r6 / Dr6r8<2.00. Therefore, it is advantageous for compactness of the lens element array from the first lens element to the third lens element to reduce the size. Moreover, the following condition may also be satisfied: 0.20<Dr1r6 / Dr6r8<1.60 In addition, the following condition may also be satisfied: 0.40<Dr1r6 / Dr6r8<1.50. In addition, the following condition may also be satisfied: 0.50<Dr1r6 / Dr6r8<1.40. In addition, the following condition may also be satisfied: 0.76≤Dr1r6 / Dr6r8≤1.24.When a focal length of the photographing optical lens array is f and a composite focal length of the first lens element and the second lens element is f12, the following condition may be satisfied: 0.10<f / f12<0.95.Therefore, it is preferable to adjust the total refracting power of the first lens element and the second lens element so as to balance the refracting power arrangement of the photographing optical lens arrangement. Moreover, the following condition may also be satisfied: 0.35<f / f12<0.90.When an axial distance between the object-side surface of the first lens element and the image-side surface of the fourth lens element is TD, and the axial distance between the first lens element and the second lens element is T12, the following condition may be satisfied: 2.00<TD / T 12<30.00. Therefore, it is advantageous for adjusting the ratio of the axial distance between the object-side surface of the first lens element and the image-side surface of the fourth lens element to the axial distance between the first lens element and the third lens element to achieve a balance between the matching with the optical path and the size of the photographing optical lens array. Moreover, the following condition may also be satisfied: 4.00<TD / T 12<20.00. Moreover, the following condition may also be satisfied: 5.00<TD / T 12<11.00.When the axial distance between the object-side surface of the first lens element and the image-side surface of the fourth lens element is TD, and an axial distance between the second lens element and the third lens element is T 23, the following condition may be satisfied: 2.00<TD / T 23<50.00. This is advantageous for adjusting the spatial arrangement of the photographing optical lens array to balance the size distribution of the photographing optical lens array.When a maximum value among the Abbe numbers of all the lens elements of the photographing optical lens array is Vmax, the following condition may be satisfied: 70.0< V<190.0. This is advantageous for adjusting the material distribution to maintain a low dispersion. Moreover, the following condition may also be satisfied: 75.0< V<88.0.When a maximum effective radius of the object-side surface of the first lens element is Y 1R 1 and a maximum effective radius of the image-side surface of the fourth lens element is Y 4R 2, the following condition can be satisfied: 3.30<Y 4R 2 / Y 1R 1<9.50. Therefore, it is advantageous for adjusting the ratio of the effective radii of the lens elements to increase the image size and the ratio of the screen to the body, and is also advantageous for applications in folding phones. Moreover, the following condition may also be satisfied: 3.50<Y4R2 / Y1R1<6.00. Reference is made to FIG. 26, which shows a schematic view of Y 1R 1 and Y 4R 2 according to the first embodiment of the present disclosure.When a radius of curvature of the image-side surface of the first lens element is R 2 and a radius of curvature of the object-side surface of the second lens element is R 3, the following condition can be satisfied: (R 2+R 3) / (R 2-R 3)<0.40. Moreover, the following condition can also be satisfied: 10.00<(R2+R3) / (R2-R3)<0.00.When a minimum value among the Abbe numbers of all the lens elements of the photographing optical lens array is Vmin, the following condition may be satisfied: 5.0<Vmin<21.0. Therefore, it is advantageous to adjust the material distribution of the lens elements and correct the chromatic aberration generated by the photographing optical lens array so as to improve the image quality. Moreover, the following condition may also be satisfied: 12.0<Vmin<20.0.When a maximum angle of view of the photographing optical lens array is FOV, the following condition may be satisfied: 70 degrees<<110 degrees. Therefore, it is advantageous to control the photographic range of the photographic optical lens assembly to meet a broader range of application requirements. Moreover, the following condition may also be satisfied: 80 degrees<<105 degrees.When the focal length of the photographing optical lens array is f, the radius of curvature of the object-side surface of the second lens element is R3, and a radius of curvature of the image-side surface of the second lens element is R4, the following condition can be satisfied: 0.01<|f / R3|+|f / R4|<3.00. Therefore, it is advantageous to control the radii of curvature of the surfaces of the second lens element to reduce the manufacturing difficulties and correct aberrations, thereby improving the image quality. Moreover, the following condition can also be satisfied: 0.15<|f / R3|+|f / R4|<2.00.When the focal length of the photographing optical lens array is f and a composite focal length of the third lens element and the fourth lens element is f34, the following condition can be satisfied: -0.500<f / f34<0.900. This is advantageous for adjusting the total refracting power of the third lens element and the fourth lens element to reduce the focal distance. Moreover, the following condition can also be satisfied: -0.400<f / f34<0.800.When the axial distance between the object-side surface of the first lens element and the image-side surface of the fourth lens element is TD, and a central thickness of the second lens element is CT2, the following condition may be satisfied: 10.50<TD / CT2. This is advantageous for adjusting the proportion of the second lens element in the photographing optical lens assembly so as to maintain a balance between the space utilization and the manufacturing difficulty of the photographing optical lens assembly. Moreover, the following condition may also be satisfied: 11.00<TD / CT2<20.00.According to the present disclosure, the foregoing features and conditions may be used in various combinations to achieve respective effects.According to the present disclosure, the lens elements of the photographic optical lens assembly may be made of either a glass or plastic material. When the lens elements are made of a glass material, the refractive power distribution of the photographing optical lens assembly can be more flexible, and the influence on imaging caused by external ambient temperature changes can be reduced. The glass lens element may be formed by either grinding or molding. If the lens elements are made of a plastic material, the manufacturing cost can be effectively lowered. Furthermore, surfaces of each lens element may be spherical or aspherical. Spherical lens elements are simple to manufacture. An aspherical lens element design allows more control variables for eliminating aberrations thereof and for reducing the required number of lens elements, and the entire length of the photographing optical lens assembly can therefore be effectively shortened. Moreover, the aspherical surfaces may be formed by injection molding or glass molding.According to the present disclosure, when a lens surface is aspherical, this means that the lens surface has an aspherical shape over its entire optically effective surface or over one or more regions thereof.According to the present disclosure, one or more materials of the lens element for reducing unwanted stray light or color variations may optionally contain an additive which generates light absorption and interference effects and changes the transmittance of the lens element in a certain wavelength range. For example, the additive may optionally filter out light in the wavelength range of 600 nm to 800 nm to reduce excessive red light and / or near infrared light; or optionally filter out light in the wavelength range of 350 nm to 450 nm to reduce excessive blue light and near ultraviolet light, to respectively prevent disturbance of the final image. The additive may be homogeneously mixed with a plastic material to be used in the production of a lens element of mixed material by injection molding. Further, the additive may be applied to the lens surfaces to achieve the above-mentioned effects. According to the present disclosure, each object-side surface and image-side surface has a triaxial region and an off-axis region. The triaxial region refers to the region of the surface in which light rays travel near the optical axis, and the off-axis region refers to the region of the surface that is remote from the multiaxial region. Unless otherwise stated, particularly when the lens element has a convex surface, this means that the surface in the triaxial region thereof is convex; when the lens element has a concave surface, this means that the surface in the multiaxial region thereof is concave. In addition, when a range of the refractive power or focal point of a lens element is not defined, it means that the range of the refractive power or focal point of the lens element is in the triaxial region thereof.According to the present disclosure, an inflection point is a point on the surface of the lens element at which the surface changes from concave to convex or vice versa. A critical point is a non-axial point of the lens surface at which its tangent runs perpendicular to the optical axis. Reference is made to FIG. 27 which shows a schematic view of critical points C on a plurality of lens surfaces according to the first embodiment of the present disclosure. In Fig. 27, the image-side surface of the second lens element E2 and the image-side surface of the fourth lens element E4 each have a critical point C in an off-axis region thereof. The first embodiment of the present disclosure shown in FIG. 27 is only exemplary.Each of the lens elements in various embodiments of the present disclosure may have one or more critical points in an off-axis region thereof.According to the present disclosure, the image surface of the photographing optical lens array based on the corresponding image sensor may be planar or curved, more specifically, a curved surface concave toward the object side of the photographing optical lens array.According to the present disclosure, an image capturing unit such as an image field leveler may optionally be disposed between the lens element closest to the image side of the photographing optical lens array along the optical path and the image surface for correcting aberrations such as field curvature. The optical properties of the image correction unit, such as curvature, thickness, refractive index, position and surface shape (convex or concave surface with spherical, aspherical, diffractive or Fresnel types), can be adjusted according to the design of the image acquisition unit. In general, a preferred image correction unit is, for example, a thin transparent member having a concave object-side surface and a planar image-side surface, and the thin transparent member is disposed in the vicinity of the image surface.According to the present disclosure, at least one light deviating element such as a prism or a mirror may be optionally provided between an imaged object and the image surface on the imaging optical path, and the surface shape of the prism or mirror may be planar, spherical, aspherical, or a free-form surface, so that the photographing optical lens array may be more flexible in spatial arrangement, and therefore, the dimensions of an electronic device are not limited by the total length of the photographing optical lens array. Reference is made in particular to FIGS. 28 and 29. FIG. 28 is a schematic view showing a configuration of a light diverting member in a photographing optical lens assembly according to an embodiment of the present disclosure, and FIG. 29 is a schematic view showing another configuration of a light diverting member in a photographing optical lens assembly according to an embodiment of the present disclosure. In FIGS. 28 and 29, the photographing optical lens array may include, in order from an imaged object (not shown in the figures) to an image surface IMG along an optical path, a first optical axis OA 1, a light diverting element LF, and a second optical axis OA 2. The light diverting element LF may be disposed between the imaged object and a lens group LG of the photographing optical lens array as shown in FIG. 28, or may be disposed between a lens group LG of the photographing optical lens array and the image surface IMG as shown in FIG. 29. Moreover, refer to FIG. 30, which is a schematic view of a configuration of two light deviating elements in a photographing optical lens assembly according to an embodiment of the present disclosure. In FIG. 30, the photographing optical lens array may include, in order from an imaged object (not shown in the figures) to an image surface IMG along a light path, a first optical axis OA 1, a first light diverting element LF 1, a second optical axis OA 2, a second light diverting element LF 2, and a third optical axis OA 3. The first light diverting element LF 1 is disposed between the imaged object and a lens group LG of the photographing optical lens array, the second light diverting element LF 2 is disposed between the lens group LG and the image surface IMG of the photographing optical lens array, and the light traveling direction in the first optical axis OA 1 may be the same as the light traveling direction in the third optical axis OA 3 as shown in FIG. 30. The photographing optical lens assembly may optionally be equipped with three or more light deviating elements, and the present disclosure is not limited to the type, amount, and position of the light deviating elements of the embodiments disclosed in the above figures.According to the present disclosure, the photographing optical lens assembly may include at least one aperture such as an aperture stop, a lyot stop, or a field stop. The Lyot aperture or the field of view aperture is adjusted so that the scattered light is eliminated and thereby the image quality is improved.According to the present disclosure, an aperture stop may be formed as a front stop or a middle stop. A front aperture disposed between an imaged object and the first lens element may provide a longer distance between an exit pupil of the photographing optical lens array and the image surface to produce a telecentric effect, thereby improving the image sensing efficiency of an image sensor (e.g., CCD or CMOS). A central aperture arranged between the first lens element and the image surface is advantageous for increasing the angle of view of the photographic optical lens arrangement and thereby provides a further field of view for the same.According to the present disclosure, the photographing optical lens assembly may include an aperture control unit. The aperture control unit may be a mechanical component or a light modulator that can / can control the size and shape of the aperture by electricity or electrical signals. The mechanical component may include a movable member such as a louver array or a light shielding sheet. The light modulator may include a shielding member such as a filter, an electrochromic material, or a liquid crystal layer. The aperture control unit controls the amount of incident light or the exposure time to enhance the capability of image quality adjustment. In addition, the aperture control unit may be the aperture stop of the present disclosure, which changes the F-number to achieve various image effects, e.g., depth of field or light intensity.According to the present disclosure, the photographing optical lens assembly may include one or more optical elements to limit the shape of light passing through the photographing optical lens assembly. Each optical element may be, but is not limited to, a filter, a polarizer, etc., and each optical element may be, but is not limited to, a one-piece element, a composite component, a thin film, etc. The optical element may be located on the object side or the image side of the photographing optical lens array or between any two adjacent lens elements to transmit light in a certain shape, thereby satisfying the requirements of the application.According to the present disclosure, the photographic optical lens assembly may include at least one optical lens element, an optical element, or a carrier having at least one surface with a low-reflection layer. The low-reflection layer can effectively reduce stray light which arises as a result of light reflection at the interface. The low-reflection layer can be arranged in an optically non-effective region of an object-side or an image-side surface of the optical lens element or a connecting surface between the object-side surface and the image-side surface. The optical element may be a light blocking member, an annular spacer, a tube member, a cover glass, a blue glass, a filter, a color filter, an optical path folding member (for example, a reflective member), a prima, a mirror, and so forth. The support may be a base for supporting a lens array, a microlens disposed on an image sensor, a substrate surrounding the image sensor, a glass plate for protecting the image sensor, and so on.According to the present disclosure, the object side and the image side are defined according to the optical axis direction, and the axial optical data is calculated along the optical axis. In addition, when the optical axis is redirected by a light redirecting element, the axial optical data is also calculated along the redirected optical axis.In accordance with the above description of the present disclosure, the following specific embodiments are provided for further explanation.First EmbodimentFIG. 1 is a schematic view of an image capturing unit according to the first embodiment of the present disclosure. FIG. 2 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the first embodiment. In FIG. 1, the image capturing unit 1 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a glass material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has an inflection point. The image-side surface of the second lens element E2 has a critical point in an off-axis portion thereof.The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has two inflection points. The image-side surface of the third lens element E3 has two inflection points.The fourth lens element E4 having negative refractive power has an object-side surface concave in a vertical portion thereof and an image-side surface concave in a vertical portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has three inflection points. The image-side surface of the fourth lens element E4 has three inflection points. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.The equation of aspherical surface profiles of the above lens elements of the first embodiment is expressed as follows:X is the displacement parallel to an optical axis from an axial apex on the aspherical surface to a point at a distance Y from the optical axis on the aspherical surface;Y is the vertical distance from the point on the aspherical surface to the optical axis;R is the radius of curvature;k is the conic coefficient; andAi is the ith aspherical coefficient, and in these embodiments i may be 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28, but is not limited thereto.In the photographing optical lens array of the image capturing unit 1 according to the first embodiment, when a focal length of the photographing optical lens array is f, an F-number of the photographing optical lens array is Fno, and half of a maximum angle of view of the photographing optical lens array is HFOV, these parameters have the following values: f=1.89 millimeters (mm), Fno=2.42, and HFOV=46.5 degrees.When the maximum angle of view of the photographing optical lens assembly is FOV, the following condition is satisfied: FOV=92.9 degrees.When an axial distance between the object-side surface of the first lens element E 1 and the image surface IMG is TL and a maximum image height of the photographing optical lens array is IMGH, the following condition is satisfied: TL / ImgH=1.10.When a focal length of the third lens element E3 is f3 and a focal length of the fourth lens element E4 is f4, the following condition is satisfied: f3 / f4 = - 1.27.When the focal length of the photographing optical lens array is f, and a composite focal length of the first lens element E1 and the second lens element E2 is f12, the following condition is satisfied: f / f12=0.68.When the focal length of the photographing optical lens array is f and a composite focal length of the third lens element E3 and the fourth lens element E4 is f34, the following condition is satisfied: f / f34=0.096.When the focal length of the photographing optical lens array is f, a radius of curvature of the object-side surface of the second lens element E2 is R3, and a radius of curvature of the image-side surface of the second lens element E2 is R4, the following condition is satisfied: |f / R3|+|f / R4|=0.65.When a radius of curvature of the image-side surface of the first lens element E1 is R2 and the radius of curvature of the object-side surface of the second lens element E2 is R3, the following condition is satisfied: (R2+R3) / (R2-R3) = -0.33.When a radius of curvature of the object-side surface of the third lens element E3 is R5 and a radius of curvature of the image-side surface of the third lens element E3 is R6, the following condition is satisfied: R5 / R6 = 2.48.When the radius of curvature of the image-side surface of the third lens element E3 is R6 and a radius of curvature of the image-side surface of the fourth lens element E4 is R8, the following condition is satisfied: R6 / R8 = -0.79.When a central thickness of the first lens element E 1 is CT 1 and a central thickness of the fourth lens element E 4 is CT 4, the following condition may be satisfied: CT 1 / CT 4=1.21.When an axial distance between the third lens element E 3 and the fourth lens element E 4 is T 34, and an axial distance between the image-side surface of the fourth lens element E 4 and the image surface is IMG BL, the following condition is satisfied: T 34 / BL=1.64 In this embodiment, an axial distance between two adjacent lens elements is a distance in a triaxial region between two adjacent lens surfaces of two adjacent lens elements.When an axial distance between the first lens element E1 and the second lens element E2 is T12, and the axial distance between the third lens element E3 and the fourth lens element E4 is T34, the following condition is satisfied: T34 / T12=3.78.When an axial distance between the object-side surface of the first lens element E1 and the image-side surface of the fourth lens element E4 is TD, and the axial distance between the first lens element E1 and the second lens element E2 is T12, the following condition is satisfied: TD / T12 = 10.95.When the axial distance between the object-side surface of the first lens element E 1 and the image-side surface of the fourth lens element E 4 is TD, and an axial distance between the second lens element E 2 and the third lens element E 3 is T 23, the following condition is satisfied: TD / T 23=16.32 When the axial distance between the object-side surface of the first lens element E 1 and the image-side surface of the fourth lens element E 4 is TD, and a central thickness of the second lens element E 2 is CT 2, the following condition may be satisfied: TD / CT 2=13.01.When an axial distance between the object-side surface of the first lens element E1 and the image-side surface of the third lens element E3 is Dr1r6, and an axial distance between the image-side surface of the third lens element E3 and the image-side surface of the fourth lens element E4 is Dr6r8, the following condition is satisfied: Dr1r6 / Dr6r8=1.13.When a maximum value among the Abbe numbers of all the lens elements of the photographing optical lens array is Vmax, the following condition is satisfied: Vmax=70.4; in this embodiment, an Abbe number of the first lens element E 1 is larger than Abbe numbers of the other lens elements in the photographing optical lens array, and Vmax is equal to the Abbe number of the first lens element E 1.When a minimum value among the Abbe numbers of all the lens elements of the photographing optical lens array is Vmin, the following condition is satisfied: Vmin=19.5. in this embodiment, an Abbe number of the second lens element E2 is smaller than Abbe numbers of the other lens elements in the photographing optical lens array, and Vmin is equal to the Abbe number of the second lens element E2.When a maximum effective radius of the object-side surface of the first lens element E1 is Y1R1 and a maximum effective radius of the image-side surface of the fourth lens element E4 is Y4R2, the following condition is satisfied: Y4R2 / Y1R1=3.94.The detailed optical data of the first embodiment is shown in Table 1A, and the aspherical surface data is shown in Table 1B.f=1.89 mm, Fno=2.42, HFOV=46.5 degreesArea # #Radius of curvatureThickness: ThicknessMaterialIndex indexAbbe #Focal length0ObjectInfinity, infinity, infinity, and infinity, are infinity400.00 01Aperture DiaphragmPlan-0.1092Lens 10.7498(ASP)0.278Glass Glass1.48 770.42.2632.0585(ASP)0.0694Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.1015Lens 2-4.0551(ASP)0.143Plastic is a plastic material1.66 919.5-10.01610.4213(ASP)0.1147Lens 3-1.9481(ASP)0.284Plastic is a plastic material1.54 456.02.238-0.7852(ASP)0.1669Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.47610Lens 419.2308(ASP)0.230Plastic is a plastic material1.53 555.9-1.75110.9902(ASP)0.39112Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the diaphragm S1 (surface 4) is 0.395 mm.An effective radius of the diaphragm S2 (surface 9) is 1,275 mm.Area # #2356k = k5.07711E-024.6407E+00-4.08809E+009.90000E+01A4 =-3,09811633E-01-3,13428850E-01- 1.73314486E+00-2.54271624E-01A6 =1.84597592E+011.28602185E+014.94753513E+01-3,13074972E+01A8 =-4,6281207E+024.21762388E+02-2.36307604E+031.16318381E+03A10 = =6.68611716E+037.65617287E+036.39730666E+04-2.60497221E+04A12 =-5,59756452E+048.47147327E+04-1.07773081E+063.7881071E+05A14 =2.62937657, E+055.52374627E+051.15838276E+07-3.48643010E+06A16 =-6.12120398E+05-1.93898029E+06-7.93068688E+072.16960237E+07A18=4.829166459E+052.80210402E+063.34052836E+088.85686927E+07A20 =---7.87024156E+082.27486272E+08A22 =--7.91260567E+08-3,32688716E+08A24 =---2.10749657E+08Area # #781011k = k2.72695E+00-9.13754E-019.31327E+01-8.41155E-01A4 =1.62419396E-01-2,70237641E-01-1.49915918E+00-1.63154911E+00A6 =-1.68958244E+013.65467823E+001.55298127E+003.92795277E+00A8 =4.35961979E+02-4.75109442E+013.73212659E+008.88212416E+00A10 = =-6,35015756E+036.04838054E+02-2,14459183E+011.5681947E+01A12 =5.91759739E+04-5.54173029E+035.20185609E+011.98491884E+01A14 =-3,61694701E+053.51233219E+04-7.60974072072E+011.66191743E+01A16 =1.46930348E+06-1,49207143E+057.25928961E+017.98313527E+00A18=-3,93392208E+064.30595451E+054,63417845E+018.7915694E-01A20 =6.66449151E+06-8.56774520E+051.96850318E+011.42547478E+00A22 =-6.46377859E+061.16728652E+06-5,34615076E+00-9.77647243E-01A24 =2.72915389E+06-1.04402524E+068.40391472E-012.99660018E-01A26 =5.52288828E+05-5.81754695E-02-4.68392889E-02A28 =--1.30641061E+053.02152517E-03In Table 1A, the radius of curvature, thickness and focal length are shown in millimeters (mm). The area numbers 0-12 represent the areas sequentially arranged along the optical axis from the object side to the image side. In Table 1B, k represents the conic coefficient of the equation of aspherical surface profiles. A4-A28 represent the aspherical coefficients from 4th to 28th order. The tables shown below for each embodiment are the corresponding schematic parameters and aberration curves, and the definitions of the tables are the same as in Table 1A and Table 1B of the first embodiment. For this reason, the explanation thereof will not be repeated.Second EmbodimentFIG. 3 is a schematic view of an image capturing unit according to the second embodiment of the present disclosure. FIG. 4 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the second embodiment. In FIG. 3, the image capturing unit 2 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a glass material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having a positive refracting power has an object-side surface concaved in a triaxial portion thereof and an image-side surface convexed in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has an inflection point. The image-side surface of the second lens element E2 has a critical point in an off-axis portion thereof.The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has two inflection points. The image-side surface of the third lens element E3 has two inflection points.The fourth negative refracting power lens element E4 has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has two inflection points. The image-side surface of the fourth lens element E4 has four inflection points. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.Hereinafter, the detailed optical data of the second embodiment is shown in Table 2A, and the aspherical surface data is shown in Table 2B.f=1.78 mm, Fno=2.42, HFOV=48.3 degreesArea # #Radius of curvatureThickness: ThicknessMaterialIndex indexAbbe #Focal length0ObjectInfinity, infinity, infinity, and infinity, are infinity400.00 01Aperture DiaphragmPlan-0.0912Lens 10.7688(ASP)0.270Glass Glass1.49 781.62.2932.0928(ASP)0.0634Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.0955Lens 2-2.9973(ASP)0.133Plastic is a plastic material1.66 919.519.886-2.4896(ASP)0.0987Lens 3-1.0526(ASP)0.286Plastic is a plastic material1.54 456.03.018-0.7017(ASP)0.1099Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.41910Lens 41.2964(ASP)0.234Plastic is a plastic material1.53 456.0-2.15110.5711(ASP)0.48612Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S 1 (surface 4) is 0.371 mm.An effective radius of the diaphragm S2 (surface 9) is 1,184 mm.Area # #2356k = k3.40142E-02-1.58340E+00-2.34086E+00-9.18949E+01A4 =-1,39014960E-01-2.51999590E-01-7.36003063E-012.37291018E+00A6 =8.77433518E+007.72071750E+002.10789014E+011.22802277E+02A8 =-1,728572E+022.36097148E+02-1.87741796E + 033,45094893E+03A10 = =1.54221532E+033.76318253E+035.82631795E+04-6.65392755E+04A12 =-2.83731838E+02-3,96628983E+041.06104269E+068.72892227E+05A14 =-1.02231427E+052.63201992E+051.21832130E+07-7.85075966E+06A16 =7.25179884E+059.92158825E+05-8.87828151E+074.83692097E+07A18=-1,62857264E+061.60979538E+063.96980639E+08-2.00280351E+08A20 =--9.88534402E+085.31698449E+08A22 =--1.04336237E409-8.15563100E+08A24 =---5.47956114E+08Area # #781011k = k-5.93483E+00-1.20918E+00-1.32740E+01-1.26319E+00A4 =1.97721945E+00-3,61909248E-01-9.77063528E-01- 2.03350607E+00A6 =-3,70979791E+011.86604216E+01-3.26269660E+002.3022237E+00A8 =6.05440501E+02-3.67505815E+022.80753702E+016.62153827E+00A10 = =-6.54229789E+034.58917423E+039.38649136E+01-3,60436266E+01A12 =4.68963014E+04-3,68954299E+041.84832249E+028.10790699E+01A14 =-2.24476097E+052.00161524E+05-2.35623369E+021.12101593E+02A16 =7.15433677E+05-7.496966E+052.0269514E+021.04142731E+02A18=-1.4892718E+061.95744964E+06-1,19244682E+02-6.70403348E+01A20 =1.92864982E+06-3.55392093E+064.74249460E+013.00379895E+01A22 =-1.39408773E+064.40079514E+061.2214567E+019.20406847E+00A24 =4.22279779E+053.54647356E+061.84089259E+001.84005405E+00A26 =1.67730083E+06-1.23348881E-01-2,16284663E-01A28 =--3.53304918E+05-1.1335533E-02In the second embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in Table 2C below are the same as those in the first embodiment with corresponding values for the second embodiment, so that no explanation thereof will be made again.f [mm]1.78R6 / R8-1.23Fno2.42CT1 / CT41.15HFOV [grade]48.3T34 / BL1.09FOV [Grade]96.6T34 / T123.34TL / ImgH1.07TD / T1210.80f3 / f4-1.40TD / T2317.42f / f120.83TD / CT212.83f / f34-0.084Dr1r6 / Dr6r81.24|f / R3|+|f / R4|1.31Vmax81.6(R2+R3) / (R2-R3)-0.18Vmin19.5R5 / R61.50Y4R2 / Y1R14.18Third EmbodimentFIG. 5 is a schematic view of an image capturing unit according to the third embodiment of the present disclosure. FIG. 6 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the third embodiment. In FIG. 5, the image capturing unit 3 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a glass material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has an inflection point. The image-side surface of the second lens element E2 has a critical point in an off-axis portion thereof.The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has two inflection points. The image-side surface of the third lens element E3 has two inflection points.The fourth negative refracting power lens element E4 has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has two inflection points. The image-side surface of the fourth lens element E4 has two inflection points. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.Hereinafter, the detailed optical data of the third embodiment is shown in Table 3A, and the aspherical surface data is shown in Table 3B.f=1.97 mm, Fno=2.42, HFOV=45.5 degreesArea # #Radius of curvatureThickness: ThicknessMaterialIndex indexAbbe #Focal length0ObjectInfinity, infinity, infinity, and infinity, are infinity400.00 01Aperture DiaphragmPlan-0.1212Lens 10.7341(ASP)0.294Glass Glass1.49 781.62.2431.8610(ASP)0.0774Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.0925Lens 2-8.3048(ASP)0.140Plastic is a plastic material1.66 919.5-17.82627.5668(ASP)0.1207Lens 3-1.3049(ASP)0.247Plastic is a plastic material1.54 456.02.848-0.7548(ASP)0.1759Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.36810Lens 41.7234(ASP)0.250Plastic is a plastic material1.54 456.0-2.03110.6389(ASP)0.50112Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S 1 (surface 4) is 0.370 mm.An effective radius of the aperture S2 (surface 9) is 1,283 mm.k = k0.00000E+000.00000E+000.00000E+000.00000E+00A4 =-4.89428110E-01-2,972738767E-01- 1.59661096E+00-4.747255559E-01A6 =2.60567100E+011.32693241E+013.06330646E+012.15298263E+01A8 =-6.33588993E+024.81721610E+02-1.68684055E+037.867615E+02A10 = =8.71176480, E+039.08530760E+034.77527339E+04-1,92472871E+04A12 =-6.92456484E+041.04016455E+05-8.40116325E+053.00933684E+05A14 =3.10969971E+057.01564227E+059.43241896E+06-3.09313558E+06A16 =-7.14140664E+05-2,5706264E+06-6.74395085E+072.11654434E+07A18=6.17527783E+053.929493994E+062.96077286E+08-9.519099993E+07A20 =---7.23991930E+082.69448025E+08A22 =--7.50660917E+08-4,33639909E+08A24 =---3.01403714E+08Area # #781011k = k0.00000E+00-1.00000E+00-1.00000E+00-1.00000E+00A4 =2.852466828E-02-7.78611401E-01-2.35295736E+00-2.83129426E+00A6 =-1.65757445E+002.37322082E+014.89565820E+008.27998382E+00A8 =2.63295616E+014.757377010E+026.06979111E+00-2.03540400E+01A10 = =5.57971869E+016.18406759E+033,78064381E-013.82613968E+01A12 =-4.676632225E+03-5,22079710E+041.57112885E+01-5,35493849E+01A14 =5.96872787E+042.99007215E+05-3.32109992E+015.52644368E+01A16 =-3,75150660E+051.17927482E+063.79610888E+01-4,18240429E+01A18=1.32192415E+063.2201673E+062.81253717E+012.30164707E+01A20 =-2.66366411E+06-6.06662214E+061.41591562E+01-9.06208387E+00A22 =2.87506621E+067.73826325E+064.84241272E+002.47740016E+00A24 =-1.29197382E+066.38342201E+061.08208842E+00-4.45166399E-01A26 =-3.07442972E+06-1.42918943E-014.71354492E-02A28 =-6.56749587E+058.47356154E-03-2.221968667E-03In the third embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in Table 3C below are the same as those in the first embodiment with corresponding values for the third embodiment, so that no explanation thereof will be made again.f [mm]1.97R6 / R8-1.18Fno2.42CT1 / CT41.18HFOV [grade]45.5T34 / BL1.08FOV [Grade]91.0T34 / T123.21TL / ImgH1.10TD / T1210.43f3 / f4-1.40TD / T2314.69f / f120.79TD / CT212.59f / f34-0.060Dr1r6 / Dr6r81.22|f / R3|+|f / R4|0.31Vmax81.6(R2+R3) / (R2-R3)-0.63Vmin19.5R5 / R61.73Y4R2 / Y1R13.76Fourth EmbodimentFIG. 7 is a schematic view of an image capturing unit according to the fourth embodiment of the present disclosure. FIG. 8 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the fourth embodiment. In FIG. 7, the image capturing unit 4 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has an inflection point. The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has two inflection points. The image-side surface of the third lens element E3 has two inflection points.The fourth negative refracting power lens element E4 has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has three inflection points. The image-side surface of the fourth lens element E4 has three inflection points. The object-side surface of the fourth lens element E4 has two critical points in an off-axis portion thereof. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.Hereinafter, the detailed optical data of the fourth embodiment is shown in Table 4A, and the aspherical surface data is shown in Table 4B.Area # #Radius of curvatureThickness: ThicknessMaterialIndex indexAbbe #Focal length0ObjectInfinity, infinity, infinity, and infinity, are infinity400.0001Aperture DiaphragmPlan-0.1312Lens 10.7611(ASP)0.288Plastic is a plastic material1.53456.02.1232.0170(ASP)0.0694Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.1015Lens 2-2.6661(ASP)0.168Plastic is a plastic material1.66919.5-6.216-7.6322(ASP)0.1007Lens 3-1.8767(ASP)0.254Plastic is a plastic material1.54456.02.618-0.8468(ASP)0.2169Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.52610Lens 43.2141(ASP)0.221Plastic is a plastic material1.53456.0-1.88110.7456(ASP)0.37912Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the diaphragm S 1 (surface 4) is 0.380 mm.An effective radius of the diaphragm S2 (surface 9) is 1.249 mm.k = k4.98793E-02-1.52952E+006.15286E+009.90000E+01A4 =-2.40149305E-01-3.35142683E-01- 1.89841574E+00-5.74195367E-01A6 =1.34812621E+011.72635617E+015.25565440E+011.15450026E+01A8 =-2,78076513E+02-6.02286443E+02-2,40097866E+034.88227497E+02A10 = =3.24402429E+031.13087544E+046.72057094E+04-1,14822995E+04A12 =-2.15175434E+04-1,27213268E+05-1.20365901E+061.71469818E+05A14 =7.75334908E+048.32034977E+051.39057417E+07-1,68034466E+06A16 =-1,28613118E+05-2.92502444E+06-1.02894663E+081.09382931E+07A18=4.92198445E+044.25337229E+064.69880171E+08-4,67084579E+07A20 =---1.20343143E +091.25305801E+08A22 =--1.31976243E409-1.90797758E+08A24 =---1.25262683E+08Area # #781011k = k2.28824E+00-8.92379E-01-1,66073E+01-1.01245E+00A4 =-2,33838042E-02-4.88132452E-01-2.11446143E+002.39016521E+00A6 =-1,00070618E+011.16653946E+015.26233344E+006.77724750E+00A8 =2.82119912E+02-1,81547483E+02-9.74753343E+001.597344424E+01A10 = =-4,40267807E+031.91899519E+031.28238332E+012.87349736E+01A12 =4.49313251E+04-1.33601598E+04-1.01807519E+013.84654574E+01A14 =-3.02736938E+056.41732225E+043.39183745E+003.7843682E+01A16 =1.36737509E+06-2,14478832E+051.58118526E+002.71775392E+01A18=-4,11676260E+065.06879012E+05-2,39616769E+001.41353144E+01A20 =7.92032174E+068.79908782E+051.2612873E+005.24511947E+00A22 =-8.77667143E+061.17123728E+06-3,6072211E-011.3493586E+00A24 =4.24143384E+061.18146023E+065.5618002E-02-2.28105916E-01A26 =-7.8981647E+05-3,63240806E-032.27420831E-02A28 =--2.49148090E+05--1.01151344E-03In the fourth embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in Table 4C below are the same as those in the first embodiment with corresponding values for the fourth embodiment, so that no explanation thereof will be made again.In addition, these parameters can be calculated from Table 4A and Table 4B as the following values, and satisfy the following conditions:f [mm]2.01R6 / R8-1.14Fno2.35CT1 / CT41.30HFOV [grade]44.9T34 / BL1.96FOV [Grade]89.8T34 / T124.36TL / ImgH1.13TD / T1211.43f3 / f4-1.39TD / T2319.43f / f120.68TD / CT211.57f / f340.032Dr1r6 / Dr6r81.02|f / R3|+|f / R4|1.02Vmax56.0(R2+R3) / (R2-R3)-0.14Vmin19.5R5 / R62.22Y4R2 / Y1R13.89Fifth EmbodimentFIG. 9 is a schematic view of an image capturing unit according to the fifth embodiment of the present disclosure. FIG. 10 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the fifth embodiment. In FIG. 9, the image capturing unit 5 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a glass material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has an inflection point. The image-side surface of the second lens element E2 has a critical point in an off-axis portion thereof.The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has two inflection points. The image-side surface of the third lens element E3 has two inflection points.The fourth negative refracting power lens element E4 has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has two inflection points. The image-side surface of the fourth lens element E4 has two inflection points. The object-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.Hereinafter, the detailed optical data of the fifth embodiment is shown in Table 5A, and the aspherical surface data is shown in Table 5B.Area # #Radius of curvatureThickness: ThicknessMaterialIndex indexAbbe #Focal length0ObjectInfinity, infinity, infinity, and infinity, are infinity400.00 01Aperture DiaphragmPlan-0.1212Lens 10.7307(ASP)0.295Glass Glass1.49 781.62.1931.9327(ASP)0.0684Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.1005Lens 2-3.4446(ASP)0.145Plastic is a plastic material1.66 919.5-21.686-4.5936(ASP)0.1387Lens 3-1.4054(ASP)0.260Plastic is a plastic material1.54 456.02.788-0.7764(ASP)0.1609Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.47010Lens 47.6441(ASP)0.230Plastic is a plastic material1.54 456.0-1.68110.8067(ASP)0.39912Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the diaphragm S1 (surface 4) is 0.365 mm.An effective radius of the diaphragm S2 (surface 9) is 1.297 mm.k = k0.00000E+000.00000E+000.00000E+000.00000E+00A4 =-5,58115269E-01-2,46567916E-01-1.39254403E+00-6.11964604E-01A6 =3.03997635E+011.42805803E+012.62038442E+014.05531618E+00A8 =-7.60552541E+02-5,37453966E+02-1,41065691E+031.22215973E+02A10 = =1.08336534E+041.06243480, E+044.09265117E+04-2.64079511E+03A12 =-8.95697172E+04-1.26279572E+05-7.41873631E+054.19539366E+04A14 =4.21133504E+058.79768008E+058.62223448E+06-4.63771717E+05A16 =-1.02565374E+06-3,31641062E+06-6.40113404E+073.51230693E+06A18=9.711127437E+055.20020525E+062.92330165E+08-1.75846475E+07A20 =---7.44810938E+085.49760255E+07A22 =--8.06172769E+08-9.62059967E+07A24 =---7.13124287E+07Area # #781011k = k0.00000E+00-1.00000E+00-1.00000E+00-1.00000E+00A4 =-3,56937768E-01-6.68271910E-012.14651323E+00-2,33646624E+00A6 =5.21562694E+001.993300005E+015.85349008E+006.77615039E+00A8 =-7.52719987E+01-3,80051486E+021.36080081E+011.61409196E+01A10 = =7.33863690E+024.56638529E+032.59442797E+012.84795365E+01A12 =-4.09440524E+03-3,54936860E+043.6686827E+013.64050729E+01A14 =1.89718086E+041.86879828E+053.78834940E+013.34847070E+01A16 =-8.11410292E+04-6.76996543E+052.85232247E+012.19975801E+01A18=2.54110972E+051.69731575E+061.54480115E+011.01633274E+01A20 =-4,87042650E+05-2.93543801E+065.83426172E+003.20175428E+00A22 =5.03535994E+053.43709360E+061.45200808E+006.47025900E-01A24 =-2.15234294E+05-2.60273979E+06-2,13299427E-01-7.32801484E-02A26 =-1.15079297E+061.39764096E-022.94892379E-03A28 =--2.25698645E+05-1.03793663E-04In the fifth embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in Table 5C below are the same as those in the first embodiment with corresponding values for the fifth embodiment, so that no explanation thereof will be made again.f [mm]1.97R6 / R8-0.96Fno2.42CT1 / CT41.28HFOV [grade]45.5T34 / BL1.58FOV [Grade]91.0T34 / T123.75TL / ImgH1.10TD / T1211.11f3 / f4-1.66TD / T2313.52f / f120.82TD / CT212.87f / f34-0.206Dr1r6 / Dr6r81.17|f / R3|+|f / R4|1.00Vmax81.6(R2+R3) / (R2-R3)-0.28Vmin19.5R5 / R61.81Y4R2 / Y1R13.83Sixth EmbodimentFIG. 11 is a schematic view of an image capturing unit according to the sixth embodiment of the present disclosure. FIG. 12 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the sixth embodiment. In FIG. 11, the image capturing unit 6 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a plastic material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has two inflection points. The image-side surface of the second lens element E2 has a critical point in an off-axis portion thereof.The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has two inflection points. The image-side surface of the third lens element E3 has two inflection points.The fourth negative refracting power lens element E4 has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has two inflection points. The image-side surface of the fourth lens element E4 has two inflection points. The object-side surface of the fourth lens element E4 has two critical points in an off-axis portion thereof. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.Hereinafter, the detailed optical data of the sixth embodiment is shown in Table 6A, and the aspherical surface data is shown in Table 6B.0ObjectInfinity, infinity, infinity, and infinity, are infinity400.00 01Aperture DiaphragmPlan-0.1192Lens 10.7578(ASP)0.261Plastic is a plastic material1.53 456.02.1531.9534(ASP)0.0644Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.0965Lens 2-4.8127(ASP)0.158Plastic is a plastic material1.66 919.5-6.70666.6667(ASP)0.1207Lens 3-1.8695(ASP)0.255Plastic is a plastic material1.55 144.82.678-0.8628(ASP)0.2429Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.55210Lens 44.1105(ASP)0.226Plastic is a plastic material1.53 456.0-1.81110.7691(ASP)0.32412Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the diaphragm S1 (surface 4) is 0.393 mm.An effective radius of the diaphragm S2 (surface 9) is 1.306 mm.k = k2.97253E-02-1.42256E+006.59943E+00-9.87323E+01A4 =-3.15385830E-01-2.09245678E-01-1.5492584E+00-9.42501615E-01A6 =1.49049146E+011.18037005E+013.18951034E+011.03480909E+00A8 =-2.76162238E+02-5,07090219E+02-1.70421698E+032.39209608E+02A10 = =2.87906423E+031.08921240E+045.21599552E+04-8.42043447E+03A12 =-1.64630783E+04-1.359589552E+059.82057985E+051.47001874E+05A14 =4.40062417E+049.65130977E+051.16424061E+07-1.5464535E+06A16 =-1.10932794E+04-3,62218438E+06-8.71651709E+071.03911419E+07A18=-1.29499699E+055.55323516E+063.99195276E+08-4.48959422E+07A20 =--1.01874202E+091.20624155E+08A22 =--1.10686793E+091.83014772E+08A24 =---1.19417126E+08Area # #781011k = k2.68778E+00-8.81532E-01-2.83382E+01-9.96074E-01A4 =-1,65053829E-03-2.03154597E-01-2.07940207E+00-2.32113805E+00A6 =-1.46556225E+013.15403904E+005.01539657E+006.41767747E+00A8 =4.79969093E+02-6.85232676E+01-9.45149374E+001.42932900E+01A10 = =-8.76174966E+031.23358023E+031.39307748E+012.359557020E+01A12 =1.02205361E+051.40532489E+04-1.44297066E+012.85858718E+01A14 =-7.766646662E+051.07202812E+051.016999835E+012.54072552E+01A16 =3,90054577E+065.56844927E+05-4.84001326E+001.65479403E+01A18=-1.28527410E+072.00712874E+061.52753612E+007.85158033E+00A20 =2.66900806E+07-5.04759272E+06-3.04116571E-01-2.67420237E+00A22 =-3,16104876E+078.70182629E+063.36893505E-026.34905974E-01A24 =1.62348110E+07-9.78936853E+06-1,34580385E-03-9.94512703E-02A26 =-6.4564545498E+06-4,11161259E-059.20790366E-03A28 =-- 1.88800853E+06--3,80407998E-04In the sixth embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in Table 6C below are the same as those in the first embodiment with corresponding values for the sixth embodiment, so that no explanation thereof will be made again.In addition, these parameters can be calculated from Table 6A and Table 6B as the following values, and satisfy the following conditions:Fno2.42CT1 / CT41.15HFOV [grade]45.3T34 / BL2.45FOV [Grade]90.5T34 / T124.96TL / ImgH1.12TD / T1212.34f3 / f4-1.47TD / T2316.45f / f120.68TD / CT212.49f / f34-0.002Dr1r6 / Dr6r80.94|f / R3|+|f / R4|0.44Vmax56.0(R2+R3) / (R2-R3)-0.42Vmin19.5R5 / R62.17Y4R2 / Y1R14.08Seventh EmbodimentFIG. 13 is a schematic view of an image capturing unit according to the seventh embodiment of the present disclosure. FIG. 14 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the seventh embodiment. In FIG. 13, the image capturing unit 7 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, a filter E5, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a glass material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the third lens element E 3 has two inflection points. The image-side surface of the third lens element E3 has two inflection points.The fourth lens element E4 having a positive refracting power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has three inflection points. The image-side surface of the fourth lens element E4 has three inflection points. The object-side surface of the fourth lens element E4 has two critical points in an off-axis portion thereof. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The filter E5 is made of a glass material and is located between the fourth lens element E4 and the image surface IMG and does not affect the focal length of the photographing optical lens assembly. The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.Hereinafter, the detailed optical data of the seventh embodiment is shown in Table 7A, and the aspherical surface data is shown in Table 7B.0ObjectInfinity, infinity, infinity, and infinity, are infinity400.00 01Aperture DiaphragmPlan-0.0792Lens 10.8710(ASP)0.203Glass Glass1.74 935.02.5331.4480(ASP)0.0764Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.0915Lens 2-2.6890(ASP)0.131Plastic is a plastic material1.66 919.5-5.31611.2953(ASP)0.0867Lens 3-3.5405(ASP)0.199Plastic is a plastic material1.54 456.03.418-1.2409(ASP)0.2679Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.46010Lens 40.8200(ASP)0.308Plastic is a plastic material1.54 456.023.20110.7609(ASP)0.35012FilterPlan0.100Glass Glass1.51 764.2-13Plan0.15514Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the diaphragm S1 (surface 4) is 0.348 mm.An effective radius of the diaphragm S2 (surface 9) is 1,058 mm.k = k0.00000E+000.00000E+000.00000E+000.00000E+00A4 =-3,20123771E-016.283137332E-011.63696069E+001.80851638E+00A6 =1.90394525E+01- -3.31276400E+012.59650948E+002.05408349E+01A8 =-3.90471918E+029.23223913E+025.42083443E+023.38853690E+02A10 = =4,55680376E+03- 1.57341390E+041.81578750E+044.25323808E+03A12 =-2.89812853E+041.63570689E+053.02056944E+053.41117022E+04A14 =8.22098467E+041.03231784E+063.018566888E+061.06341078E+05A16 =1.03589917E+043,63347602E+061.915324770E+078.02522563E+05A18=-3,89825640E+055.52489509E+067.77751114E+071.01278757E+07A20 =--1.91756202E+084.57111464E+07A22 =--- 2.27078429E+08- 9.77907170E+07A24 =---8.20070609E+07Area # #781011k = k0.00000E+00-1.00000E+00-1.00000E+00-1.00000E+00A4 =-1.31052147E+00- 2.79162891E+00-8.53797757E-01-4,19557178E-01A6 =-4.00420456E+009.73240606E+013.26752559E+004.91182840E-01A8 =4.20471293E+022.53654112E+031.37611000E+012.22034686E+00A10 = =-8.70558288E+034.27171563E+043,37576137E+015.00711778E+00A12 =1.03923118E+054,83086824E+055.21797923E+016.33587505E+00A14 =-8.03440862E+053.79728467E+065.43201476E+015.11122951E+00A16 =4.15605365E+062.11368792E+073.94126051E+012.794374331E+00A18=-1.42413202E+078.37880050E+072.02037311E+011.06050472E+00A20 =3.08654861E+072.34732173E+087.29514733E+00-2.78441431E-01A22 =-3,81338809E+074.53563637E+081.81606767E+004.8940364E-02A24 =2.03853596E+07- 5.74465197E+08-2,96758482E-01-5,32428453E-03A26 =-4.28835334E+082.86525806E-022.99678087E-04A28 =-- 1.42904920E+08-1.23884036E-03-4,98045600E-06In the seventh embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in Table 7C below are the same as those in the first embodiment with corresponding values for the seventh embodiment, so that no explanation thereof will be given again.In addition, these parameters can be calculated from Table 7A and Table 7B as the following values, and satisfy the following conditions:f [mm]1.85R6 / R8-1.63Fno2.42CT1 / CT40.66HFOV [grade]46.5T34 / BL1.20FOV [Grade]93.0T34 / T124.35TL / ImgH1.21TD / T1210.90f3 / f40.15TD / T2321.17f / f120.44TD / CT213.90f / f340.683Dr1r6 / Dr6r80.76|f / R3|+|f / R4|0.85Vmax56.0(R2+R3) / (R2-R3)-0.30Vmin19.5R5 / R62.85Y4R2 / Y1R14.72Eighth EmbodimentFIG. 15 is a schematic view of an image capturing unit according to the eighth embodiment of the present disclosure. FIG. 16 shows, in order from left to right, spherical aberration curves, astigmatic field curves, and a distortion curve of the image capturing unit according to the eighth embodiment. In FIG. 15, the image capturing unit 8 includes the photographing optical lens array (the reference numeral of which is omitted) of the present disclosure and an image sensor IS. The photographing optical lens array includes, in order from an object side to an image side along a light path, an aperture stop ST, a first lens element E1, a stop S1, a second lens element E2, a third lens element E3, a stop S2, a fourth lens element S2, and an image surface IMG. The photographing optical lens array comprises four lens elements (E1, E2, E3, and E4), with no additional lens elements interposed between all of the adjacent four lens elements.The first lens element E1 having positive refractive power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The first lens element E1 is made of a glass material and has the object-side surface and the image-side surface, both of which are aspherical. The image-side surface of the first lens element E 1 has an inflection point.The second lens element E2 having negative refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The second lens element E2 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the second lens element E2 has an inflection point.The third lens element E3 having positive refractive power has an object-side surface concave in a triaxial portion thereof and an image-side surface convex in a multiaxial portion thereof. The third lens element E3 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The image-side surface of the third lens element E3 has two inflection points.The fourth lens element E4 having a positive refracting power has an object-side surface convex in a triaxial portion thereof and an image-side surface concave in a multiaxial portion thereof. The fourth lens element E4 is made of a plastic material and has the object-side surface and the image-side surface both aspherical. The object-side surface of the fourth lens element E4 has three inflection points. The image-side surface of the fourth lens element E4 has five inflection points. The object-side surface of the fourth lens element E4 has two critical points in an off-axis portion thereof. The image-side surface of the fourth lens element E4 has a critical point in an off-axis portion thereof.The image sensor IS is disposed on or near the image surface IMG of the photographing optical lens array.Hereinafter, the detailed optical data of the eighth embodiment is shown in Table 8A, and the aspherical surface data is shown in Table 8B.Area # #Radius of curvatureThickness: ThicknessMaterialIndex indexAbbe #Focal length0ObjectInfinity, infinity, infinity, and infinity, are infinity400.00 01Aperture DiaphragmPlan-0.0252Lens 10.7521(ASP)0.184Glass Glass1.49 781.62.3331.9766(ASP)0.0754Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.1075Lens 2-2.7017(ASP)0.117Plastic is a plastic material1.66 919.5-7.076-6.4047(ASP)0.0587Lens 3-4.5349(ASP)0.204Plastic is a plastic material1.54 456.04.388-1.5857(ASP)0.0969Aperture Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm DiaphragmPlan0.40610Lens 40.6450(ASP)0.411Plastic is a plastic material1.53 456.032.24110.5214(ASP)0.47612Image ImagePlan-Note: reference wavelength is 587.6 nm (d-line).An effective radius of the aperture S 1 (surface 4) is 0.321 mm.An effective radius of the aperture S2 (surface 9) is 0.965 mm.Area # #2356k = k4.34407E-021.34708E+005.51751E+002.66934E+01A4 =-4.97358905E-018.22021473E-011.62456908E+001.5722562E+00A6 =3.61286284E+01- 5.47568094E+011.12163979E+023.94857477E+01A8 =-1.29323400E+031.93151038E+03-6,22560189E+033.44254478E+02A10 = =2.82920624E+044,45066533E+041.82395833E+053.49954511E+03A12 =-3,71567078E+056.369181887E+053.34399349E+068.16625247E+04A14 =2.81732688E+065.43841625E+063,97585286E+071.43115719E+06A16 =-1.11914299E+072.51429822E+073.05875468E+081.43219952E+07A18=1.76302782E+074.81445701E+071.46611866E409-8 42890456E+07A20 =--3.96746453E4092.91221755E+08A22 =--4.61454136E4095.46572030E+08A24 =---4.29139099E+08Area # #781011k = k2.77568E+011.58240E+00-3.64787E+00-1.15927E+00A4 =4.29365314E+001.02562413E+001.62616368E+002.07286651E+00A6 =-1.84202972E+021.79558529, E+007.73173917E+005.30625991E+00A8 =4.41069618E+031.11974239E+023.36127592E+011.23892883E+01A10 = =-6.77718194E+046.27882414E+038.96230220E+012.37942373E+01A12 =6.98103216E+051.13727179E+051.51926572E+023.60788883E+01A14 =-4,90050782E+061.16964728E+061.72694534E+024.14027402E+01A16 =2.34233253E+07-7.73021158E+061.34962308E+023.48099684E+01A18=-7.47844703E+073.43498711E+077.27294235E+012.0990955E+01A20 =1.52195450E+08-1.0383316E+082.65505570E+018.90352302E+00A22 =-1.78112910E+082.10657561E+086.26908217E+002.58178711E+00A24 =9.10214240E+07- 2.74437975E+08-8.638967668E-01-4,86049389E-01A26 =-2.07349532E+085.27699598E-025.34521231E-02A28 =-- 6,90272692E+07--2,60371592E-03In the eighth embodiment, the equation of aspherical surface profiles of the above lens elements is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in Table 8C below are the same as those in the first embodiment with corresponding values for the eighth embodiment, so that no explanation thereof will be made again.In addition, these parameters can be calculated from Table 8A and Table 8B as the following values, and satisfy the following conditions:f [mm]1.60R6 / R8-3.04Fno2.42CT1 / CT40.45HFOV [grade]50.2T34 / BL1.05FOV [Grade]100.5T34 / T122.76TL / ImgH1.07TD / T129.11f3 / f40.14TD / T2328.59f / f120.49TD / CT214.17f / f340.510Dr1r6 / Dr6r80.82|f / R3|+|f / R4|0.84Vmax81.6(R2+R3) / (R2-R3)-0.15Vmin19.5R5 / R62.86Y4R2 / Y1R15.10Ninth EmbodimentFIG. 17 is a perspective view of an image capturing unit according to the ninth embodiment of the present disclosure. In this embodiment, an image capturing unit 100 is a camera module including a lens unit 101, a driving device 102, an image sensor 103, and an image stabilizer 104. The lens unit 101 includes the photographing optical lens assembly as disclosed in the first embodiment, a barrel, and a holder member (reference numerals of which are omitted) to hold the photographing optical lens assembly. However, the lens unit 101 may alternatively be provided with the photographing optical lens assembly disclosed in other embodiments of the present disclosure, and the present disclosure is not limited thereto. The imaging light converges in the lens unit 101 of the image acquisition unit 100 to generate an image with the driving device 102 used for image focusing on the image sensor 103, and the generated image is then digitally transmitted to other electronic components for further processing.The drive device 102 may have an automatic focusing function, and various drive configurations may be achieved through the use of voice coil motors (VCM), microelectromechanical systems (MEMS), piezoelectric systems, or shape memory alloy materials. The driving device 102 is advantageous in achieving a better imaging position of the lens unit 101 so that a clear image of the imaged object can be captured by the lens unit 101 at different object distances. The image sensor 103 (e.g., CMOS or CCD) which can be characterized by high photosensitivity and low noise is disposed on the image surface of the photographing optical lens array to achieve higher image quality.The image stabilizer 104, such as an accelerometer, gyro sensor, and Hall effect sensor, is configured to cooperate with the drive device 102 to provide optical image stabilization (OIS). The driving device 102 cooperating with the image stabilizer 104 is advantageous for compensating for the tilting and tilting of the lens unit 101 to reduce blurring associated with movements during photography. In some cases, compensation may be done by electronic image stabilization (EIS) with image processing software, thereby improving image quality during motion or poor lighting conditions.Tenth EmbodimentFIG. 18 is a perspective view of an electronic device according to the tenth embodiment of the present disclosure, FIG. 19 is another perspective view of the electronic device in FIG. 18, and FIG. 20 is a plan view of the electronic device in FIG. 18.In this embodiment, an electronic device 200 is a smartphone including the image acquisition unit 100 disclosed in the ninth embodiment, an image acquisition unit 100 a, an image acquisition unit 100 b, an image acquisition unit 100 c, an image acquisition unit 100 d, an image acquisition unit 100 e, a flash module 201, a focus assist module 202, an image signal processor 203, a display module 204, and an image software processor 205.The image capturing unit 100, the image capturing unit 100 a, and the image capturing unit 100 bare disposed on the same side of the electronic device 200, and each of the image capturing units 100, 100 a, and 100 bhas a single focal point. The focus assist module 202 may be a laser range finder or a Time of Flight (ToF) module, but the present disclosure is not limited thereto. The image capturing unit 100 c, the image capturing unit 100 d, the image capturing unit 100 e, and the display module 204 are disposed on the opposite side of the electronic device 200, and the display module 204 may be a user interface, so that the image capturing units 100 c, 100 d, and 100 emay be front cameras of the electronic device 200 for capturing selfies, but the present disclosure is not limited thereto. Further, each of the image capturing units 100 a, 100 b, 100 c, 100 d, and 100 emay have the photographing optical lens array according to the present disclosure and a configuration similar to that of the image capturing unit 100. Specifically, each of the image acquisition units 100 a, 100 b, 100 c, 100 d, and 100 emay include a lens unit, a driving device, an image sensor, and an image stabilizer, and also a light deviating element for optical path deviation. Moreover, each lens unit of the image capturing units 100 a, 100 b, 100 c, 100 d, and 100 emay include the photographing optical lens assembly according to the present disclosure, a barrel, and a holder member for holding the photographing optical lens assembly.The image capturing unit 100 is a wide-angle image capturing unit, the image capturing unit 100 ais a telephoto image capturing unit having an optical path deflection function, the image capturing unit 100 bis an ultra-wide-angle image capturing unit, the image capturing unit 100 cis a wide-angle image capturing unit, the image capturing unit 100 dis an ultra-wide-angle image capturing unit, and the image capturing unit 100 his a ToF image capturing unit. In this embodiment, the image capturing units 100, 100 a, and 100 bhave different angle of view, so that the electronic device 200 may have different magnification ratios to meet the requirement of an optical zoom function. Moreover, the image acquisition unit 100 emay determine depth information regarding the imaged object. The light deflection configuration of the image capturing unit 100 amay be further similar to, for example, any of the configurations shown in FIGS. 28 to 30, which may be referred to in the foregoing descriptions of FIGS. 28 to 30, and the details thereof will not be reproduced again. Each of the image capturing units 100, 100 b, 100 c, 100 d, and 100 emay further be, for example, a light deviating configuration similar to any of the configurations shown in FIGS. 28 to 30, which may be referred to in the foregoing descriptions of FIGS. 28 to 30. In this embodiment, the electronic device 200 includes a plurality of image capturing units 100, 100 a, 100 b, 100 c, 100 d, and 100 e, but the present disclosure is not limited to the number and arrangement of the image capturing units.When a user captures images of an object 206, the light beams converge in the image capturing unit 100, the image capturing unit 100 a, or the image capturing unit 100 bto generate images, and the flash module 201 is activated for light augmentation. The focus assist module 202 detects the object distance of the imaged object 206 to achieve fast automatic focusing. The image signal processor 203 is configured to optimize the captured image to improve image quality. The light beam emitted by the focus assist module 202 may be either a conventional infrared beam or a laser beam. Moreover, the light beams may converge in the image capturing unit 100 c, 100 d, or 100 eto generate images. The display module 204 may include a touch screen, and the user is able to interact with the display module 204 and the image software processor 205, which has multiple functions to capture images and complete image editing. Alternatively, the user may capture images via a physical button. The image processed by the image software processor 205 may be displayed on the display module 204.Eleventh EmbodimentFIG. 21 is a schematic view of an electronic device according to the eleventh embodiment of the present disclosure, and FIG. 22 is another perspective view of the electronic device in FIG. 21.In this embodiment, an electronic device 300 is a smartphone including an image capturing unit 100 disclosed in the ninth embodiment, an image capturing unit 100 f, an image capturing unit 100 g, an image capturing unit 100 h, and a display module 301. As illustrated in FIG. 21, the image capturing unit 100, the image capturing unit 100 f, and the image capturing unit 100 gare disposed on the same side of the electronic device 300, and each of the image capturing units 100, 100 f, and 100 ghas a single focal point. As shown in FIG. 22, the image capturing unit 100 hand the display module 301 are disposed on the opposite side of the electronic device 300, so that the image capturing units 100 hmay be a front camera of the electronic device 300 for capturing selfies, but the present disclosure is not limited thereto. Further, each of the image capturing units 100 f, 100 g, and 100 hmay include the photographing optical lens array according to the present disclosure and a configuration similar to that of the image capturing unit 100. Specifically, each of the image acquisition units 100 f, 100 g, and 100 hmay include a lens unit, a driving device, an image sensor, and an image stabilizer. Moreover, each lens unit of the image capturing units 100 f, 100 g, and 100 hmay include the photographing optical lens assembly according to the present disclosure, a barrel, and a holder member for holding the photographing optical lens assembly.The image capturing unit 100 is a wide-angle image capturing unit, the image capturing unit 100 fis a telephoto image capturing unit, the image capturing unit 100 gis an ultra-wide-angle image capturing unit, and the image capturing unit 100 his a wide-angle image capturing unit. In this embodiment, the image capturing units 100, 100 f, and 100 ghave different angle of view, so that the electronic device 300 can have different magnification ratios to meet the requirement of an optical zoom function. In this embodiment, the electronic device 300 includes a plurality of image capturing units 100, 100 f, 100 g, and 100 h, but the present disclosure is not limited to the number and arrangement of the image capturing units.Twelfth EmbodimentFIG. 23 is a perspective view of an electronic device according to the twelfth embodiment of the present disclosure.In this embodiment, an electronic device 400 is a smartphone including an image acquisition unit 100 disclosed in the ninth embodiment, an image acquisition unit 100 i, an image acquisition unit 100 h, an image acquisition unit 100 k, an image acquisition unit 100 m, an image acquisition unit 100 n, an image acquisition unit 100 p, an image acquisition unit 100 q, an image acquisition unit 100 r, a flash module 401, a focus assist module, an image signal processor, a display module, and an image software processor (not illustrated). The image capturing units 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, and 100 rare arranged on the same side of the electronic device 400, while the display module is arranged on the opposite side of the electronic device 400. Further, each of the image capturing units 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, and 100 rmay have the photographing optical lens array according to the present disclosure and a configuration similar to that of the image capturing unit 100, and the details thereof will not be repeated.The image acquisition unit 100 is a wide-angle image acquisition unit, the image acquisition unit 100 iis a telephoto image acquisition unit having an optical path deflection function, the image acquisition unit 100 ijis a telephoto image acquisition unit having an optical path deflection function, the image acquisition unit 100 kis a wide-angle image acquisition unit, the image acquisition unit 100 mis an ultra-wide-angle image acquisition unit, the image acquisition unit 100 pis a telephoto image acquisition unit, the image acquisition unit 100 qis a telephoto image acquisition unit, and the image acquisition unit 100 ris a ToF image acquisition unit. In this embodiment, the image acquisition units 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, and 100 qhave different fields of view, so that the electronic device 400 can have different magnification ratios to meet the requirement of an optical zoom function. Moreover, the image acquisition unit 100 rmay determine depth information regarding the imaged object. Further, the light deflection configuration of the image capturing units 100 iand 100 jmay be similar to, for example, any of the structures shown in FIGS. 28 to 30, which may be referred to in the foregoing descriptions of FIGS. 28 to 30, and the details thereof will not be given again. In this embodiment, the electronic device 400 includes a plurality of image capturing units 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, and 100 r, but the present disclosure is not limited to the number and arrangement of the image capturing units. When a user captures images of an object, the light beams converge in the image capturing unit 100, 100 i, 100 j, 100 k, 100 m, 100 n, 100 p, 100 q, or 100 rto generate images, and the flash module 401 is activated for light supplement. Further, the following processes are performed in a similar manner to the aforementioned embodiments, and the details thereof will not be reproduced.Thirteenth EmbodimentFIG. 24 is a perspective view of an electronic device according to the thirteenth embodiment of the present disclosure, and FIG. 25 is another perspective view of the electronic device in FIG. 24. in this embodiment, the electronic device 500 is a foldable phone including the image capturing unit 100, an image capturing unit 100 s, an image capturing unit 100 t, an image capturing unit 100 u, an image capturing unit 100 v, a flash module 501, a display module 502, a display module 503, and a hinge mechanism 504 disclosed in the ninth embodiment. For example, the display module 502 may include a flexible screen with an organic light emitting diode (OLED), and the electronic device 500 may be unfolded or folded via the hinge mechanism 504. In this embodiment, the electronic device 500 exemplarily includes two display modules 502 and 503 arranged opposite to each other, but the present disclosure is not limited to the number and arrangement of the display modules. In other embodiments, the number of display modules of an electronic device may be one, and the one display module may include, for example, a flexible screen.As shown in FIG. 24, the image capturing unit 100 vand the display module 502 are disposed on the same side of the electronic device 500. As shown in FIG. 25, the image capturing unit 100, the image capturing unit 100 s, the image capturing unit 100 t, the image capturing unit 100 u, the flash module 501, and the display module 503 are arranged on the same side of the electronic device 500. The image capturing unit 100 vmay be a front camera of the electronic device 500 for capturing selfies, but the present disclosure is not limited thereto. Further, each of the image capturing units 100 s, 100 t, 100 u, and 100 vmay have the photographing optical lens array according to the present disclosure and a configuration similar to that of the image capturing unit 100, and the details thereof will not be given again.The image capturing unit 100 is a wide-angle image capturing unit, the image capturing unit 100 sis a telephoto image capturing unit, the image capturing unit 100 tis an ultra-wide-angle image capturing unit, the image capturing unit 100 uis a ToF image capturing unit, and the image capturing unit 100 vis a wide-angle image capturing unit. In this embodiment, the image capturing units 100, 100 s, and 100 thave different angle of view, so that the electronic device 500 can have different magnification ratios to meet the requirement of an optical zoom function. The light deflection configuration of the image capturing unit 100 smay be further similar to, for example, any of the structures shown in FIGS. 28 to 30, which may be referred to in the foregoing descriptions of FIGS. 28 to 30, and the details thereof will not be reproduced. In this embodiment, the electronic device 500 includes a plurality of image capturing units 100, 100 s, 100 t, 100 u, and 100 v, but the present disclosure is not limited to the number and arrangement of the image capturing units. When a user captures images of an object, the light beams converge in the image capturing unit 100, 100 s, 100 t, or 100 uto generate images, and the flash module 501 is activated to supplement light. Further, the following processes are performed in a similar manner to the aforementioned embodiments, and the details thereof will not be reproduced.The smartphones in these embodiments are merely examples for illustrating the image acquisition unit of the present disclosure installed in an electronic device, and the present disclosure is not limited thereto. The image acquisition unit can optionally be used in a movable focus optical system. Moreover, the optical photographing lens assembly of the image capturing unit is characterized by a good aberration correction capability and a high image quality, and can be applied to 3D (three-dimensional) image capturing applications in products such as digital cameras, mobile devices, folding phones, digital tablets, smart TVs, network monitors, dashboard cameras, vehicle backup cameras, multi-camera devices, image recognition systems, motion-recognizing input devices, unmanned aerial vehicles, portable devices, portable video recorders, and other electronic imaging devices.The foregoing description has been described for purposes of explanation with reference to specific embodiments. It should be noted that Tables 1A-8C show different data of the various embodiments; however, the data of the various embodiments are obtained from experiments. The embodiments were chosen and described in order to best explain the principles of the disclosure and its practical applications, to thereby enable others skilled in the art to best utilize the disclosure and various embodiments with various modifications as are suited to the particular use contemplated. The above-described embodiments and the accompanying drawings are exemplary and are not intended to be exhaustive or to limit the scope of the present disclosure to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings.

Claims

A photographing optical lens assembly comprising four lens elements (E1, E2, E3, and E4), wherein the four lens elements (E1, E2, E3, and E4) comprise, in order from an object side to an image side along a light path, a first lens element (E1), a second lens element (E2), a third lens element (E3), and a fourth lens element (E4), and wherein each of the four lens elements (E1, E2, E3, and E4) comprises an object-side surface facing the object side and an image-side surface facing the image side; wherein the first lens element (E1) has a positive refracting power, the third lens element (E3) has a positive refracting power, the object-side surface of the third lens element (E3) is concave in a triaxial region thereof, the image-side surface of the third lens element (E3) is convex in a multiaxial region thereof, the object-side surface and the image-side surface of the third lens element (E3) are both aspherical, and the object-side surface and / or the image-side surface of the third lens element (E3) has at least one inflection point (P); and wherein an axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the third lens element (E3) and the fourth lens element (E4) is T34, an axial distance between the image-side surface of the fourth lens element (E4) and an image surface (IMG) is BL, an axial distance between the object-side surface of the first lens element (E1) and the image surface (IMG) is TL, a maximum image height of the photographing optical lens array is ImgH, a radius of curvature of the object-side surface of the third lens element (E3) is R5, a radius of curvature of the image-side surface of the third lens element (E3) is R6, a central thickness of the first lens element (E1) is CT1, and a central thickness of the fourth lens element (E4) is CT4, and the following conditions are satisfied: 1.00<T34 / BL<10.00; _ner1_2.20<T34 / T12; 0,50 < TL / ImgH<1.30; 0,20 < R 5 / R 6 <100.00; and 0,10 < CT 1 / CT 4<1.

70. The photographic optical lens assembly according to claim 1, wherein the object-side surface of the second lens element (E2) is concave in a triaxial region thereof, the image-side surface of the second lens element (E2) is convex in a multiaxial region thereof, and the second lens element (E2) has a negative refracting power.The photographic optical lens assembly according to claim 1, wherein the image-side surface of the first lens element (E1) is concave in a triaxial portion thereof, and the image-side surface of the fourth lens element (E4) is concave in a multiaxial portion thereof.The photographing optical lens assembly according to claim 1, wherein a focal length of the photographing optical lens assembly is f, a composite focal length of the first lens element (E1) and the second lens element (E2) is f12, and the following condition is satisfied: 0.10 < f / f 12 < 0.

95. The photographing optical lens assembly according to claim 1, wherein an axial distance between the object-side surface of the first lens element (E1) and the image-side surface of the third lens element (E3) is Dr1r6, an axial distance between the image-side surface of the third lens element (E3) and the image-side surface of the fourth lens element (E4) is Dr6r8, and the following condition is satisfied: 0.20 < Dr 1 r 6 / Dr 6 r 8 < 1.

60. The photographing optical lens assembly according to claim 1, wherein an axial distance between the object-side surface of the first lens element (E1) and the image-side surface of the fourth lens element (E4) is TD, the axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the second lens element (E2) and the third lens element (E3) is T23, and the following conditions are satisfied: 2.00 < TD / T 12 < 30.00; and 2,00 < TD / T 23 < 50.

00. The photographing optical lens assembly according to claim 1, wherein the radius of curvature of the image-side surface of the third lens element (E3) is R6, a radius of curvature of the image-side surface of the fourth lens element (E4) is R8, an axial distance between the object-side surface of the first lens element (E1) and the image-side surface of the fourth lens element (E4) is TD, the axial distance between the first lens element (E1) and the second lens element (E2) is T12, and the following conditions are satisfied: - 1.65 < R 6 / R 8 < 1.00; and 5,00 < TD / T 12 < 11.

00. The photographing optical lens assembly according to claim 1, wherein a maximum value among the Abbe numbers of all the lens elements of the photographing optical lens assembly is Vmax, and the following condition is satisfied: 70.0 < Vmax < 90.

0. The photographing optical lens assembly according to claim 1, wherein a maximum effective radius of the object-side surface of the first lens element (E1) is Y1R1, a maximum effective radius of the image-side surface of the fourth lens element (E4) is Y4R2, and the following condition is satisfied: 3.30 < Y 4 R 2 / Y 1 R 1 < 9.

50. The photographic optical lens assembly according to claim 1, wherein the axial distance between the first lens element (E1) and the second lens element (E2) is T12, the axial distance between the third lens element (E3) and the fourth lens element (E4) is T34, the axial distance between the image-side surface of the fourth lens element (E4) and the image surface (IMG) is BL, 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 photographic optical lens assembly is ImgH, the radius of curvature of the object-side surface of the third lens element (E3) is R5, the radius of curvature of the image-side surface of the fourth lens element (E4) is R6, a radius of curvature of the image-side surface of the fourth lens element (E4) is R8, the central thickness of the first lens element (E1) is CT1, the central thickness of the fourth lens element (E4) is CT4, a focal length of the third lens element (E3) is f3, a focal length of the fourth lens element (E4) is f4, an axial distance between the object-side surface of the first lens element (E1) and the image-side surface of the third lens element (E3) is Dr1r6, an axial distance between the image-side surface of the third lens element (E3) and the image-side surface of the fourth lens element (E4) is Dr6r8, and the following conditions are satisfied: 1.05≤T 34 / BL≤2.45; _ner14_ 2.76 ≤ t 34 / t 12 ≤ 4.96 ; _ner15_ 1.07 ≤ tl / ImgH ≤ 1.21 ; 1,50 ≤ R5 / R6 ≤ 2.86 ; 0,45 ≤ CT1 / CT4 ≤ 1.30 ; - 3,04 ≤ R6 / R8 ≤ -0.79 ; - 1,66 ≤ f3 / f4 ≤ 0.15 ; and 0,76 ≤ Dr1r6 / Dr6r8 ≤ 1.

24. An image capturing unit (1, 100) comprising: the photographing optical lens array according to claim 1; and an image sensor (IS, 103) disposed on the image surface (IMG) of the photographing optical lens array.An electronic device (200) comprising: the image capturing unit (1, 100) according to claim 11.A photographing optical lens assembly comprising four lens elements (E1, E2, E3, and E4), wherein the four lens elements (E1, E2, E3, and E4) comprise, in order from an object side to an image side along a light path, a first lens element (E1), a second lens element (E2), a third lens element (E3), and a fourth lens element (E4), and wherein each of the four lens elements (E1, E2, E3, and E4) comprises an object-side surface facing the object side and an image-side surface facing the image side; wherein the first lens element (E1) has a positive refracting power, the image-side surface of the second lens element (E2) is convex in a triaxial region thereof, the third lens element (E3) has a positive refracting power, the object-side surface of the third lens element (E3) is concave in a multiaxial region thereof, the image-side surface of the third lens element (E3) is convex in a multiaxial region thereof, the object-side surface and the image-side surface of the third lens element (E3) are both aspherical, and the object-side surface and / or the image-side surface of the third lens element (E3) has at least one inflection point (P); and wherein an axial distance between the first lens element (E1) and the second lens element (E2) is T12, an axial distance between the third lens element (E3) and the fourth lens element (E4) is T34, an axial distance between the object-side surface of the first lens element (E1) and an image surface (IMG) is TL, a maximum image height of the photographing optical lens array is ImgH, a radius of curvature of the image-side surface of the third lens element (E3) is R6, a radius of curvature of the image-side surface of the fourth lens element (E4) is R5, a focal length of the third lens element (E3) is f3, a focal length of the fourth lens element (E4) is f4, an axial distance between the object-side surface of the first lens element (E1) and the image-side surface of the third lens element (E3) is Dr1r6, an axial distance between the image-side surface of the third lens element (E3) and the image-side surface of the fourth lens element (E4) is Dr6r8, and the following conditions are satisfied: 2.20<T34 / T12; 0,50 < TL / ImgH<1.40; - 1,70 < R6 / R8; - 2,50 < f3 / f4<10.00; and 0,20 < Dr1r6 / Dr6r8<2.

00. The photographing optical lens assembly according to claim 13, wherein the object-side surface of the fourth lens element (E4) is convex in a multiaxial region thereof, wherein a radius of curvature of the image-side surface of the first lens element (E1) is R2, a radius of curvature of the object-side surface of the second lens element (E2) is R3, and the following condition is satisfied: (R2 + R3 ) / (R2 - R3 ) < 0.

40. The photographic optical lens array according to claim 13, wherein a minimum value among the Abbe numbers of all the lens elements of the photographic optical lens array is Vmin, and the following condition is satisfied: 5.0 < Vmin < 21.0 The photographing optical lens assembly according to claim 13, wherein a maximum angle of view of the photographing optical lens assembly is FOV, and the following condition is satisfied: 70 degrees < FOV < 110 degrees. The photographing optical lens assembly according to claim 13, wherein the axial distance between the object-side surface of the first lens element (E1) and the image-side surface of the third lens element (E3) is Dr1r6, the axial distance between the image-side surface of the third lens element (E3) and the image-side surface of the fourth lens element (E4) is Dr6r8, the focal length of the third lens element (E3) is f3, the focal length of the fourth lens element (E4) is f4, and the following conditions are satisfied: 0.50 < Dr 1 r 6 / Dr 6 r 8 < 1.40 ; and - 2.30 < f 3 / f 4 < 0.

60. The photographing optical lens assembly according to claim 13, wherein the focal length of the photographing optical lens assembly is f, a radius of curvature of the object-side surface of the second lens element (E2) is R3, a radius of curvature of the image-side surface of the second lens element (E2) is R4, and the following condition is satisfied: 0.01 < | f / R 3 | + | f / R 4 | < 3.

00. The photographing optical lens assembly according to claim 13, wherein a focal length of the photographing optical lens assembly is f, a composite focal length of the third lens element (E3) and the fourth lens element (E4) is f34, and the following condition is satisfied: - 0.500 < f / f 34 < 0.

900. The photographing optical lens assembly according to claim 13, wherein the axial distance between the third lens element (E3) and the fourth lens element (E4) is T34, an axial distance between the image-side surface of the fourth lens element (E4) and the image surface (IMG) is BL, an axial distance between the object-side surface of the first lens element (E1) and the image-side surface of the fourth lens element (E4) is TD, a central thickness of the second lens element (E2) is CT2, and the following conditions are satisfied: 1.00 < T 34 / BL < 10.00; and 10,50 < TD / CT 2.

Images