Image capturing optical system, image capturing device, and electronic device

Abstract

An image capturing optical system, an image capturing device and an electronic device are disclosed. The image capturing optical system includes ten lenses. The ten lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens. The ten lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction. The first lens has a positive refractive power. The second lens has a concave image side surface at a vicinity of an optical axis. The tenth lens has a negative refractive power. At least one of the object side surface and the image side surface of at least one lens in the image capturing optical system has at least one critical point at an off-axis position. When certain conditions are met, the image capturing optical system can simultaneously satisfy the requirements of a wide angle of view, miniaturization and high imaging quality. The image capturing device has the image capturing optical system described above, and the electronic device has the image capturing device described above.

Description

[0001] This application is a divisional application. The original application was filed on December 1, 2020; the application number is 202011382217.5; and the invention title is: Image Capture Optical System, Image Capture Device and Electronic Device. Technical Field

[0002] This invention relates to an image capturing optical system, an image capturing device, and an electronic device, particularly an image capturing optical system and an image capturing device suitable for electronic devices. Background Technology

[0003] With advancements in semiconductor technology, the performance of electronic image sensors has improved, and pixels can be made smaller. As a result, optical lenses with high image quality have become an indispensable component.

[0004] With the rapid advancement of technology, electronic devices equipped with optical lenses are being used in a wider range of applications, leading to more diverse requirements for these lenses. Since existing optical lenses often struggle to achieve a balance between image quality, sensitivity, aperture size, size, and viewing angle, this invention provides an optical lens that meets these needs. Summary of the Invention

[0005] This invention provides an image capturing optical system, an image capturing device, and an electronic device. The image capturing optical system comprises ten lenses sequentially arranged from the object side to the image side along the optical path. Under certain conditions, the image capturing optical system provided by this invention can simultaneously meet the requirements of wide viewing angle, miniaturization, and high image quality.

[0006] This invention provides an image capturing optical system comprising ten lenses. The ten lenses, arranged sequentially from the object side to the image side along the optical path, are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens. Each of the ten lenses has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has positive refractive power. The image-side surface of the second lens is concave near the optical axis. The tenth lens has negative refractive power. In the image capturing optical system, at least one lens has at least one critical point off-axis at at least one of its object-side surface and its image-side surface. The distance from the object-side surface of the first lens to the imaging plane on the optical axis is TL. The maximum imaging height of the image capturing optical system is ImgH. The optical axis spacing between the first and second lenses is T12, between the second and third lenses is T23, between the third and fourth lenses is T34, between the fourth and fifth lenses is T45, and between the fifth and sixth lenses is T56. These conditions must be met.

[0007] 0.50 < TL / ImgH < 4.0; and

[0008] 0 < (T12 + T34 + T45 + T56) / T23 < 3.5.

[0009] The present invention further provides an image capturing optical system, which includes ten lenses. The ten lenses are, in order from the object side to the image side along the optical path, the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, the ninth lens, and the tenth lens. The ten lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction. The first lens has a positive refractive power. The image side surface of the second lens is concave near the optical axis. The tenth lens has a negative refractive power. At least one of the object side surface and the image side surface of at least one lens in the image capturing optical system has at least one critical point off the axis. The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, the maximum imaging height of the image capturing optical system is ImgH, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the distance between the sixth lens and the seventh lens on the optical axis is T67, which satisfy the following conditions:

[0010] 0.50 < TL / ImgH < 4.0; and

[0011] 1.40 < T67 / T45.

[0012] The present invention provides an imaging device, which includes the aforementioned image capturing optical system and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the image capturing optical system.

[0013] The present invention provides an electronic device, which includes the aforementioned imaging device.

[0014] When TL / ImgH satisfies the above conditions, a balance can be achieved between reducing the total length and increasing the imaging surface, and it helps to increase the viewing angle.

[0015] When (T12 + T34 + T45 + T56) / T23 satisfies the above conditions, the lens distribution at the object side end of the image capturing optical system can be adjusted, which helps to reduce the volume at the object side end of the image capturing optical system and increase the viewing angle.

[0016] When T67 / T45 satisfies the above conditions, the lens distribution can be adjusted, and the volume distribution between the object side end and the image side end of the image capturing optical system can be balanced.

[0017] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the claims of the present invention. Description of the Drawings

[0018] Figure 1 A schematic diagram of an image-capturing device according to a first embodiment of the present invention is shown.

[0019] Figure 2 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the first embodiment.

[0020] Figure 3 A schematic diagram of an image-capturing device according to a second embodiment of the present invention is shown.

[0021] Figure 4 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the second embodiment.

[0022] Figure 5 A schematic diagram of an image-capturing device according to a third embodiment of the present invention is shown.

[0023] Figure 6 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the third embodiment.

[0024] Figure 7 A schematic diagram of an image-capturing device according to a fourth embodiment of the present invention is shown.

[0025] Figure 8 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fourth embodiment.

[0026] Figure 9 A schematic diagram of an image-capturing device according to a fifth embodiment of the present invention is shown.

[0027] Figure 10 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fifth embodiment.

[0028] Figure 11 A schematic diagram of an image-capturing device according to a sixth embodiment of the present invention is shown.

[0029] Figure 12 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the sixth embodiment.

[0030] Figure 13 A schematic diagram of an image-capturing device according to a seventh embodiment of the present invention is shown.

[0031] Figure 14 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the seventh embodiment.

[0032] Figure 15 A schematic diagram of an imaging device according to the eighth embodiment of the present invention is shown.

[0033] Figure 16 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the eighth embodiment.

[0034] Figure 17 A perspective view of an imaging device according to a ninth embodiment of the present invention is shown.

[0035] Figure 18 A perspective view of one side of an electronic device according to a tenth embodiment of the present invention is shown.

[0036] Figure 19 Draw Figure 18 A three-dimensional diagram of the other side of the electronic device.

[0037] Figure 20 Draw Figure 18 System block diagram of an electronic device.

[0038] Figure 21 A perspective view of one side of an electronic device according to the eleventh embodiment of the present invention is shown.

[0039] Figure 22 A perspective view of one side of an electronic device according to the twelfth embodiment of the present invention is shown.

[0040] Figure 23 A schematic diagram illustrating parameters Y11, Y62, Y71, Y82, Y91, Y92, Y102, Yc82, Yc91, Yc92, and the inflection point and critical point of the lens according to the first embodiment of the present invention.

[0041] Figure 24 A schematic diagram illustrating an arrangement of the optical path deflection element according to the present invention in an image capturing optical system is shown.

[0042] Figure 25 A schematic diagram illustrating another configuration of the optical path deflection element according to the present invention in an image capturing optical system is shown.

[0043] Figure 26 A schematic diagram illustrating an arrangement of two optical path deflection elements in an image capturing optical system according to the present invention is shown.

[0044] [Symbol Explanation]

[0045] 10, 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k, 10m, 10n, 10p… Image capturing devices;

[0046] 11…imaging lens;

[0047] 12…drive device;

[0048] 13…Electronic photosensitive element;

[0049] 14…Image stabilization module;

[0050] 20, 30, 40… electronic devices;

[0051] 21, 31, 41… flash modules;

[0052] 22…Focus assist module;

[0053] 23…Image signal processor;

[0054] 24… User Interface;

[0055] 25…Image software processor;

[0056] 26…subject;

[0057] C…critical point;

[0058] P…inflection point;

[0059] IM…imaging plane;

[0060] OA1…First optical axis;

[0061] OA2…Second optical axis;

[0062] OA3…Third optical axis;

[0063] LF…optical path switching element;

[0064] LF1…First optical path switching element;

[0065] LF2…Second optical path switching element;

[0066] LG…lens group;

[0067] 100, 200, 300, 400, 500, 600, 700, 800… aperture;

[0068] 101, 102, 201, 202, 301, 401, 402, 501, 502, 503, 601, 602, 603, 701, 702, 703, 801… aperture;

[0069] 110, 210, 310, 410, 510, 610, 710, 810… First lens;

[0070] 111, 211, 311, 411, 511, 611, 711, 811… object side surface;

[0071] 112, 212, 312, 412, 512, 612, 712, 812… like side surfaces;

[0072] 120, 220, 320, 420, 520, 620, 720, 820… second lens;

[0073] 121, 221, 321, 421, 521, 621, 721, 821… object side surface;

[0074] 122, 222, 322, 422, 522, 622, 722, 822… like side surfaces;

[0075] 130, 230, 330, 430, 530, 630, 730, 830… third lens;

[0076] 131, 231, 331, 431, 531, 631, 731, 831… object side surface;

[0077] 132, 232, 332, 432, 532, 632, 732, 832… like side surfaces;

[0078] 140, 240, 340, 440, 540, 640, 740, 840… fourth lens;

[0079] 141, 241, 341, 441, 541, 641, 741, 841… object side surface;

[0080] 142, 242, 342, 442, 542, 642, 742, 842… like the side surface;

[0081] 150, 250, 350, 450, 550, 650, 750, 850… fifth lens;

[0082] 151, 251, 351, 451, 551, 651, 751, 851… object side surface;

[0083] 152, 252, 352, 452, 552, 652, 752, 852… like side surfaces;

[0084] 160, 260, 360, 460, 560, 660, 760, 860… the sixth lens;

[0085] 161, 261, 361, 461, 561, 661, 761, 861… object side surface;

[0086] 162, 262, 362, 462, 562, 662, 762, 862… like the side surface;

[0087] 170, 270, 370, 470, 570, 670, 770, 870… Seventh lens;

[0088] 171, 271, 371, 471, 571, 671, 771, 871… object side surface;

[0089] 172, 272, 372, 472, 572, 672, 772, 872… image side surface;

[0090] 180, 280, 380, 480, 580, 680, 780, 880… the eighth lens;

[0091] 181, 281, 381, 481, 581, 681, 781, 881… object side surface;

[0092] 182, 282, 382, ​​482, 582, 682, 782, 882… like the side surface;

[0093] 190, 290, 390, 490, 590, 690, 790, 890… Ninth lens;

[0094] 191, 291, 391, 491, 591, 691, 791, 891… object side surface;

[0095] 192, 292, 392, 492, 592, 692, 792, 892… image side surface;

[0096] 193, 293, 393, 493, 593, 693, 793, 893… the tenth lens;

[0097] 194, 294, 394, 494, 594, 694, 794, 894… object side surface;

[0098] 195, 295, 395, 495, 595, 695, 795, 895… like the side surface;

[0099] 197, 297, 397, 497, 597, 697, 797, 897… filter elements;

[0100] 198, 298, 398, 498, 598, 698, 798, 898… imaging planes;

[0101] 199, 299, 399, 499, 599, 699, 799, 899… Electronic photosensitive element;

[0102] Y11…The maximum effective radius of the object-side surface of the first lens;

[0103] Y62…The maximum effective radius of the image-side surface of the sixth lens;

[0104] Y71…The maximum effective radius of the object-side surface of the seventh lens;

[0105] Y82…The maximum effective radius of the image-side surface of the eighth lens;

[0106] Y91… The maximum effective radius of the object-side surface of the ninth lens;

[0107] Y92… The maximum effective radius of the image-side surface of the ninth lens;

[0108] Y102… The maximum effective radius of the image-side surface of the tenth lens;

[0109] Yc82… The vertical distance between the convex critical point on the image-side surface of the eighth lens and the optical axis;

[0110] Yc91… The perpendicular distance between the concave critical point on the object-side surface of the ninth lens and the optical axis;

[0111] Yc92… The vertical distance between the convex critical point on the image-side surface of the ninth lens and the optical axis. Detailed Implementation

[0112] The image capturing optical system comprises ten lenses, arranged sequentially from the object side to the image side along the optical path as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens. Each of the ten lenses has an object-side surface facing the object side and an image-side surface facing the image side. This allows for an increase in viewing angle and imaging surface within a limited volume, and also improves image quality.

[0113] The first lens has positive refractive power, which helps to reduce the size of the image capturing optical system. The object-side surface of the first lens can be convex near the optical axis, which allows light from each field of view to enter the image capturing optical system uniformly, helping to increase the viewing angle and improve the peripheral illumination of the imaging surface.

[0114] The image-side surface of the second lens is concave near the optical axis. This allows for adjustment of the direction of light travel, which helps to increase the viewing angle and correct aberrations.

[0115] The object-side surface of the eighth lens can be convex near the optical axis. This allows for adjustment of the surface shape and refractive power of the eighth lens, which helps to adjust the volume distribution of the image capturing optical system.

[0116] The object-side surface of the ninth lens can be convex near the optical axis; this allows adjustment of the lens's shape, which helps correct off-axis aberrations. The image-side surface of the ninth lens can be concave near the optical axis; this allows it to work in conjunction with the tenth lens to correct aberrations and increase the imaging surface.

[0117] The tenth lens has negative refractive power; this helps to balance the refractive power of the image capturing optical system and facilitates adjustment of the back focal length. The object-side surface of the tenth lens can be concave near the optical axis; this allows adjustment of the tenth lens's shape and refractive power to correct aberrations.

[0118] An image capturing optical system may have at least three lenses, each having at least one inflection point on at least one of its object-side surface and its image-side surface; thereby, the degree of variation of the lens surface can be increased, which helps to correct aberrations and reduce lens volume. Alternatively, an image capturing optical system may have at least four lenses, each having at least one inflection point on at least one of its object-side surface and its image-side surface. An image capturing optical system may also have at least five lenses, each having at least one inflection point on at least one of its object-side surface and its image-side surface. An image capturing optical system may also have at least six lenses, each having at least one inflection point on at least one of its object-side surface and its image-side surface. Furthermore, an image capturing optical system may have at least one lens with at least one inflection point on both its object-side surface and its image-side surface; thereby, the degree of variation of the lens surface can be further increased to correct aberrations and reduce lens volume. Please refer to [reference needed]. Figure 23 This is a schematic diagram illustrating the inflection point P of the lens according to the first embodiment of the present invention. Figure 23 The inflection points of the image-side surface of the second lens, the object-side surface of the third lens, the image-side surface of the third lens, the object-side surface of the fourth lens, the object-side surface of the fifth lens, the image-side surface of the fifth lens, the object-side surface of the sixth lens, the image-side surface of the sixth lens, the object-side surface of the seventh lens, the image-side surface of the seventh lens, the object-side surface of the eighth lens, the image-side surface of the eighth lens, the object-side surface of the ninth lens, the image-side surface of the ninth lens, the object-side surface of the tenth lens, and the image-side surface of the tenth lens are illustrated as examples in the first embodiment. However, in addition to the above-mentioned lens surfaces, other lens surfaces in various embodiments of the present invention may also have one or more inflection points.

[0119] In an image capturing optical system, at least one lens has at least one critical point off-axis on at least one of its object-side surface and its image-side surface; this enhances the variation of the lens surface, helping to correct aberrations, reduce volume, and increase the viewing angle and imaging area. Alternatively, the image capturing optical system may also have at least two lenses, each having at least one critical point off-axis on at least one of its object-side surface and its image-side surface. Furthermore, at least one of the eighth and ninth lenses may have at least one critical point off-axis on at least one of its object-side surface and its image-side surface; by placing the critical point on the eighth or ninth lens, image quality can be further improved. Please refer to [reference needed]. Figure 23 This is a schematic diagram illustrating the critical point C of the lens according to the first embodiment of the present invention. Figure 23The critical points of the object-side surface of the third lens, the object-side surface of the fourth lens, the object-side surface of the fifth lens, the image-side surface of the fifth lens, the object-side surface of the sixth lens, the object-side surface of the seventh lens, the image-side surface of the seventh lens, the object-side surface of the eighth lens, the image-side surface of the eighth lens, the object-side surface of the ninth lens, the image-side surface of the ninth lens, the object-side surface of the tenth lens, and the image-side surface of the tenth lens in the first embodiment are shown as an example. However, in each embodiment of the present invention, in addition to the above lens surfaces, other lens surfaces may also have one or more critical points off-axis.

[0120] The image-side surface of the eighth lens may have at least one critical point off-axis; thereby, off-axis aberrations such as image curvature can be corrected. Among them, the vertical distance between the convex critical point of the image-side surface of the eighth lens and the optical axis is Yc82, the maximum effective radius of the image-side surface of the eighth lens is Y82, and the image-side surface of the eighth lens may have at least one convex critical point off-axis that satisfies the following condition: 0.20 < Yc82 / Y82 < 0.75; thereby, the surface shape of the eighth lens can be adjusted to further correct off-axis aberrations. Please refer to Figure 23 , which is a schematic diagram showing the parameters Yc82, Y82, and the convex critical point C of the image-side surface 182 of the eighth lens in accordance with the first embodiment of the present invention.

[0121] The object-side surface of the ninth lens may have at least one critical point off-axis; thereby, it can cooperate with the eighth lens to correct off-axis aberrations. Among them, the vertical distance between the concave critical point of the object-side surface of the ninth lens and the optical axis is Yc91, the maximum effective radius of the object-side surface of the ninth lens is Y91, and the object-side surface of the ninth lens may have at least one concave critical point off-axis that satisfies the following condition: 0.20 < Yc91 / Y91 < 0.70; thereby, the surface shape of the ninth lens can be adjusted to further correct off-axis aberrations. Please refer to Figure 23 , which is a schematic diagram showing the parameters Yc91, Y91, and the concave critical point C of the object-side surface 191 of the ninth lens in accordance with the first embodiment of the present invention.

[0122] The image-side surface of the ninth lens may have at least one critical point off-axis; thereby, it helps to improve the image quality around the imaging surface. Among them, the vertical distance between the convex critical point of the image-side surface of the ninth lens and the optical axis is Yc92, the maximum effective radius of the image-side surface of the ninth lens is Y92, and the image-side surface of the ninth lens may have at least one convex critical point off-axis that satisfies the following condition: 0.25 < Yc92 / Y92 < 0.70; thereby, the surface shape of the ninth lens can be adjusted to further improve the image quality. Please refer to Figure 23 , which is a schematic diagram showing the parameters Yc92, Y92, and the convex critical point C of the image-side surface 192 of the ninth lens in accordance with the first embodiment of the present invention.

[0123] In the image capture optical system disclosed by the present invention, at least five lenses can be made of plastic material. Thereby, the mass production capacity can be improved and the weight of the image capture optical system can be reduced. Among them, at least six lenses in the image capture optical system can also be made of plastic material. Among them, at least seven lenses in the image capture optical system can also be made of plastic material. Among them, at least eight lenses in the image capture optical system can also be made of plastic material.

[0124] The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the maximum imaging height of the image capture optical system is ImgH (which can be half of the total length of the diagonal of the effective sensing area of the electronic photosensitive element), and it satisfies the following conditions: 0.50 < TL / ImgH < 4.0. Thereby, a balance can be achieved between compressing the total length and increasing the imaging surface, and it helps to increase the viewing angle. Among them, the following conditions can also be satisfied: 0.60 < TL / ImgH < 2.8. Among them, the following conditions can also be satisfied: 0.70 < TL / ImgH < 1.8.

[0125] The spacing distance between the first lens and the second lens on the optical axis is T12, the spacing distance between the second lens and the third lens on the optical axis is T23, the spacing distance between the third lens and the fourth lens on the optical axis is T34, the spacing distance between the fourth lens and the fifth lens on the optical axis is T45, and the spacing distance between the fifth lens and the sixth lens on the optical axis is T56, and it can satisfy the following conditions: 0 < (T12 + T34 + T45 + T56) / T23 < 3.5. Thereby, the lens distribution at the object side end of the image capture optical system can be adjusted, which helps to compress the volume at the object side end of the image capture optical system and increase the viewing angle. Among them, the following conditions can also be satisfied: 0 < (T12 + T34 + T45 + T56) / T23 < 3.0. Among them, the following conditions can also be satisfied: 0.10 < (T12 + T34 + T45 + T56) / T23 < 2.5. Among them, the following conditions can also be satisfied: 0.10 < (T12 + T34 + T45 + T56) / T23 < 2.0.

[0126] The spacing distance between the fourth lens and the fifth lens on the optical axis is T45, and the spacing distance between the sixth lens and the seventh lens on the optical axis is T67, and it can satisfy the following conditions: 1.40 < T67 / T45. Thereby, the lens distribution can be adjusted, and the volume distribution between the object side end and the image side end of the image capture optical system can be balanced. Among them, the following conditions can also be satisfied: 2.00 < T67 / T45 < 70.0. Among them, the following conditions can also be satisfied: 2.50 < T67 / T45 < 50.0. Among them, the following conditions can also be satisfied: 3.00 < T67 / T45 < 30.0.

[0127] The focal length of the image capturing optical system is f, and the radius of curvature of the object side surface of the eighth lens is R15, which can satisfy the following condition: 0.10 < f / R15 < 2.5. Thereby, the surface shape and refractive power of the eighth lens can be adjusted, which helps to adjust the volume distribution of the image capturing optical system. Among them, the following condition can also be satisfied: 0.35 < f / R15 < 2.2. Among them, the following condition can also be satisfied: 0.55 < f / R15 < 2.0. Among them, the following condition can also be satisfied: 0.70 < f / R15 < 1.8.

[0128] The Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the fourth lens is V4, the Abbe number of the fifth lens is V5, the Abbe number of the sixth lens is V6, the Abbe number of the seventh lens is VX, the Abbe number of the eighth lens is V8, the Abbe number of the ninth lens is V9, the Abbe number of the tenth lens is V10, the Abbe number of the i-th lens is Vi, the refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the fourth lens is N4, the refractive index of the fifth lens is N5, the refractive index of the sixth lens is N6, the refractive index of the seventh lens is N7, the refractive index of the eighth lens is N8, the refractive index of the ninth lens is N9, the refractive index of the tenth lens is N10, the refractive index of the i-th lens is Ni, and the minimum value of Vi / Ni is (Vi / Ni)min, which can satisfy the following condition: 8.00 < (Vi / Ni)min < 11.0, where i = 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. Thereby, the material distribution of the image capturing optical system can be adjusted to compress the volume and correct the aberration.

[0129] The sum of the spacing distances of all adjacent lenses on the optical axis in the image capturing optical system is ΣAT, and the spacing distance between the sixth lens and the seventh lens on the optical axis is T67, which can satisfy the following condition: 3.00 < ΣAT / T67 < 15.0. Thereby, the lens distribution can be adjusted, which helps to compress the overall length.

[0130] The thickness of the second lens on the optical axis is CT2, the thickness of the third lens on the optical axis is CT3, and the spacing distance between the second lens and the third lens on the optical axis is T23, which can satisfy the following condition: 0.55 < (CT2 + CT3) / T23 < 1.8. Thereby, the second lens and the third lens can cooperate with each other, which helps to increase the viewing angle. Among them, the following condition can also be satisfied: 0.70 < (CT2 + CT3) / T23 < 1.6.

[0131] The radius of curvature of the object-side surface of the first lens is R1, and the thickness of the first lens on the optical axis is CT1, which can satisfy the following conditions: 1.2 < R1 / CT1 < 7.0. Thereby, the surface shape of the first lens can be adjusted, which helps to increase the viewing angle. Among them, the following conditions can also be satisfied: 1.8 < R1 / CT1 < 5.0. Among them, the following conditions can also be satisfied: 2.2 < R1 / CT1 < 4.0.

[0132] The Abbe number of the third lens is V3, the focal length of the image capture optical system is f, and the focal length of the third lens is f3, which can satisfy the following conditions: |V3×f / f3| < 8.0. Thereby, the material and refractive power of the third lens can be adjusted, which helps to correct aberrations.

[0133] The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the focal length of the image capture optical system is f, the maximum imaging height of the image capture optical system is ImgH, and the entrance pupil diameter of the image capture optical system is EPD, which can satisfy the following conditions: 1.00 < (TL×f) / (ImgH×EPD) < 3.00. Thereby, a balance can be achieved among the aperture, volume, viewing angle, and imaging surface size. Among them, the following conditions can also be satisfied: 1.20 < (TL×f) / (ImgH×EPD) < 2.35.

[0134] The focal length of the image capture optical system is f, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the seventh lens is f7, the focal length of the eighth lens is f8, the focal length of the ninth lens is f9, and the focal length of the i-th lens is fi, which can satisfy the following conditions: Σ|f / fi| < 4.0, where i = 2, 3, 4, 5, 6, 7, 8, and 9. Thereby, the refractive powers between the lenses can be coordinated with each other, which helps to increase the viewing angle, compress the volume, and correct aberrations. Among them, the following conditions can also be satisfied: Σ|f / fi| < 3.0, where i = 2, 3, 4, 5, 6, 7, 8, and 9. Among them, the following conditions can also be satisfied: Σ|f / fi| < 2.5, where i = 2, 3, 4, 5, 6, 7, 8, and 9.

[0135] The minimum Abbe number among all the lenses of the image capture optical system is Vmin, which can satisfy the following conditions: 10.0 < Vmin < 20.0. Thereby, the material distribution can be adjusted to correct chromatic aberration. Among them, the following conditions can also be satisfied: 12.0 < Vmin < 18.5.

[0136] The distance from the object side surface of the first lens to the image side surface of the second lens on the optical axis is Dr1r4, and the distance from the object side surface of the third lens to the image side surface of the sixth lens on the optical axis is Dr5r12, which can satisfy the following condition: 0.60 < Dr1r4 / Dr5r12 < 1.5. Thereby, the lens distribution can be adjusted, which helps to compress the volume of the object side end of the image capturing optical system.

[0137] The distance from the object side surface of the first lens to the image side surface of the sixth lens on the optical axis is Dr1r12, and the distance from the object side surface of the seventh lens to the image side surface of the tenth lens on the optical axis is Dr13r20, which can satisfy the following condition: 0.60 < Dr1r12 / Dr13r20 < 1.3. Thereby, the lens distribution can be adjusted, which helps to balance the viewing angle, volume and imaging surface size.

[0138] The distance from the object side surface of the first lens to the image side surface of the tenth lens on the optical axis is TD, and the distance between the second lens and the third lens on the optical axis is T23, which can satisfy the following condition: 8.00 < TD / T23 < 30.0. Thereby, the lens distribution can be adjusted, which helps to increase the viewing angle. Among them, the following condition can also be satisfied: 10.0 < TD / T23 < 25.0.

[0139] The focal length of the image capturing optical system is f, and the radius of curvature of the image side surface of the second lens is R4, which can satisfy the following condition: 0.55 < f / R4 < 2.5. Thereby, the surface shape and refractive power of the second lens can be adjusted, which helps to correct aberrations such as astigmatism.

[0140] Half of the maximum viewing angle in the image capturing optical system is HFOV, which can satisfy the following condition: 30.0 [degrees] < HFOV < 60.0 [degrees]. Thereby, the image capturing optical system can have the characteristic of a wide viewing angle and can avoid aberrations such as distortion caused by an excessive viewing angle. Among them, the following condition can also be satisfied: 35.0 [degrees] < HFOV < 50.0 [degrees].

[0141] The focal length of the image capturing optical system is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the seventh lens is f7, the focal length of the eighth lens is f8, the focal length of the ninth lens is f9, and the focal length of the tenth lens is f10. It can satisfy at least one of the following conditions: 0.45 < f / f1 < 1.6; |f / f2| < 1.0; |f / f3| < 1.0; |f / f4| < 1.0; |f / f5| < 1.0; |f / f6| < 1.0; |f / f7| < 1.0; |f / f8| < 1.0; |f / f9| < 1.0; and -1.5 < f / f10 < -0.40. Thereby, the refractive power of the lens can be adjusted, which helps to increase the viewing angle and compress the volume.

[0142] The Abbe number of the second lens is V2, the focal length of the image capturing optical system is f, and the focal length of the second lens is f2. It can satisfy the following condition: |V2 × f / f2| < 15. Thereby, the surface shape and refractive power of the second lens can be adjusted to correct the aberration.

[0143] The Abbe number of the second lens is V2, and the Abbe number of the third lens is V3. It can satisfy the following condition: 20.0 < V2 + V3 < 65.0. Thereby, the second lens and the third lens can cooperate with each other to correct aberrations such as chromatic aberration. Among them, the following condition can also be satisfied: 26.0 < V2 + V3 < 55.0.

[0144] The maximum value of the interval distance between all adjacent lenses on the optical axis in the image capturing optical system is ATmax, and the minimum value of the thickness of all lenses on the optical axis in the image capturing optical system is CTmin. It can satisfy the following condition: 1.8 < ATmax / CTmin < 4.0. Thereby, the lens distribution can be adjusted to compress the total length.

[0145] The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the focal length of the image capturing optical system is f. It can satisfy the following condition: 1.05 < TL / f < 1.40. Thereby, a balance can be achieved between the viewing angle and the total length.

[0146] The F-number of the image capturing optical system is Fno. It can satisfy the following condition: 1.0 < Fno < 2.0. Thereby, a balance can be achieved between the illuminance and the depth of field.

[0147] The distance from the object side surface of the first lens to the image side surface of the sixth lens on the optical axis is Dr1r12, and the distance between the second lens and the third lens on the optical axis is T23, which can satisfy the following condition: 3.50 < Dr1r12 / T23 < 16.0. Thereby, the lens distribution can be adjusted, which helps to compress the volume of the object side end of the image capture optical system and increase the viewing angle. Among them, the following condition can also be satisfied: 4.50 < Dr1r12 / T23 < 12.0.

[0148] The radius of curvature of the image side surface of the second lens is R4, and the focal length of the second lens is f2, which can satisfy the following condition: R4 / |f2| < 2.0. Thereby, the surface shape and refractive power of the second lens can be adjusted to correct aberrations. Among them, the following condition can also be satisfied: R4 / |f2| < 1.0.

[0149] The radius of curvature of the object side surface of the eighth lens is R15, and the focal length of the eighth lens is f8, which can satisfy the following condition: |R15 / f8| < 3.5. Thereby, the surface shape and refractive power of the eighth lens can be adjusted, which helps to correct off-axis aberrations. Among them, the following conditions can also be satisfied: |R15 / f8| < 2.0. Among them, the following condition can also be satisfied: |R15 / f8| < 1.0.

[0150] The maximum effective radius of the object side surface of the first lens is Y11, and the maximum effective radius of the image side surface of the sixth lens is Y62, which can satisfy the following condition: 0.55 < Y11 / Y62 < 1.2. Thereby, it helps to compress the outer diameter of the object side end of the image capture optical system. Please refer to Figure 23 , which is a schematic diagram showing the parameters Y11 and Y62 in the first embodiment of the present invention.

[0151] The maximum effective radius of the object side surface of the first lens is Y11, and the maximum effective radius of the image side surface of the tenth lens is Y102, which can satisfy the following condition: 1.5 < Y102 / Y11 < 5.0. Thereby, the traveling direction of light can be adjusted, which helps to balance the volume, viewing angle and imaging surface size. Please refer to Figure 23 , which is a schematic diagram showing the parameters Y11 and Y102 in the first embodiment of the present invention.

[0152] The maximum effective radius of the object side surface of the seventh lens is Y71, and the maximum effective radius of the image side surface of the tenth lens is Y102, which can satisfy the following condition: 1.5 < Y102 / Y71 < 3.0. Thereby, the traveling direction of light can be adjusted to increase the imaging surface. Please refer to Figure 23 , which is a schematic diagram showing the parameters Y71 and Y102 in the first embodiment of the present invention.

[0153] The focal length of the image capturing optical system is f, the radius of curvature of the object side surface of the ninth lens is R17, and the radius of curvature of the image side surface of the ninth lens is R18, which can satisfy the following conditions: 2.5 < f / R17 + f / R18 < 6.0. Thereby, the surface shape and refractive power of the ninth lens can be adjusted to correct aberration. Among them, the following conditions can also be satisfied: 2.8 < f / R17 + f / R18 < 5.0.

[0154] The Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the fourth lens is V4, the Abbe number of the fifth lens is V5, the Abbe number of the sixth lens is V6, the Abbe number of the seventh lens is V7, the Abbe number of the eighth lens is V8, the Abbe number of the ninth lens is V9, the Abbe number of the tenth lens is V10, the Abbe number of the i-th lens is Vi. There can be at least one lens in the image capturing optical system that satisfies the following conditions: 25.0 < Vi < 50.0, where i = 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. Thereby, the material configuration can be balanced, which helps to correct aberrations such as chromatic aberration. Among them, there can also be at least one lens in the image capturing optical system that satisfies the following conditions: 26.0 ≤ Vi < 45.0, where i = 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

[0155] The thickness of the seventh lens on the optical axis is CT7, and the distance between the sixth lens and the seventh lens on the optical axis is T67, which can satisfy the following conditions: 0.45 < CT7 / T67 < 3.5. Thereby, the sixth lens and the seventh lens can cooperate with each other to balance the volume distribution of the object side end and the image side end of the image capturing optical system. Among them, the following conditions can also be satisfied: 0.65 < CT7 / T67 < 2.5.

[0156] Each technical feature in the above image capturing optical system of the present invention can be combined and configured to achieve the corresponding effects.

[0157] In the image capturing optical system disclosed by the present invention, the material of the lens can be glass or plastic. If the material of the lens is glass, the freedom degree of refractive power configuration of the image capturing optical system can be increased, and the influence of external environmental temperature change on imaging can be reduced, and the glass lens can be made by techniques such as grinding or molding. If the lens material is plastic, the production cost can be effectively reduced. In addition, a spherical surface or an aspherical surface (ASP) can be set on the lens surface. Among them, the spherical lens can reduce the manufacturing difficulty, and if an aspherical surface is set on the lens surface, more control variables can be obtained thereby to eliminate aberrations, reduce the number of lenses, and effectively reduce the total length of the image capturing optical system of the present invention. Further, the aspherical surface can be made by methods such as plastic injection molding or molding of glass lenses.

[0158] In the image capturing optical system disclosed in this invention, if the lens surface is aspherical, it means that all or part of the optically effective area of ​​the lens surface is aspherical.

[0159] In the image capturing optical system disclosed in this invention, additives can be selectively added to any (or more) lens materials to alter the lens's transmittance for specific wavelengths of light, thereby reducing stray light and color shift. For example, the additives may filter out light in the 600 nm to 800 nm wavelength range to help reduce excess red or infrared light; or they may filter out light in the 350 nm to 450 nm wavelength range to reduce excess blue or ultraviolet light. Therefore, the additives can prevent specific wavelengths of light from interfering with imaging. Furthermore, the additives can be uniformly mixed into plastic and manufactured into lenses using injection molding technology.

[0160] In the image capturing optical system disclosed in this invention, if the lens surface is convex and its position is not defined, it means that the convex surface can be located near the optical axis of the lens surface; if the lens surface is concave and its position is not defined, it means that the concave surface can be located near the optical axis of the lens surface. If the refractive power or focal length of the lens is not defined in its region, it means that the refractive power or focal length of the lens can be the refractive power or focal length of the lens near the optical axis.

[0161] In the image capturing optical system disclosed in this invention, the inflection point of the lens surface refers to the boundary point where the curvature of the lens surface changes from positive to negative. The critical point of the lens surface refers to the point of tangency on the tangent line between a plane perpendicular to the optical axis and the lens surface, and the critical point is not located on the optical axis.

[0162] In the image capturing optical system disclosed in this invention, the imaging surface of the image capturing optical system can be a plane or a curved surface with any curvature, depending on the corresponding electronic photosensitive element, especially a curved surface with a concave surface facing the object side.

[0163] In the image capturing optical system disclosed in this invention, one or more image correction elements (such as planar elements) can be selectively arranged between the lens closest to the imaging plane and the imaging plane in the imaging optical path to achieve the effect of correcting image curvature (such as image distortion). The optical properties of the image correction element, such as curvature, thickness, refractive index, position, and surface type (convex or concave, spherical or aspherical, diffractive surface, and Fresnel surface, etc.), can be adjusted according to the requirements of the imaging device. Generally, a preferred configuration of the image correction element is to place a thin plano-concave element with a concave surface in the object-side direction close to the imaging plane.

[0164] In the image capturing optical system disclosed in this invention, at least one element with a deflecting optical path function, such as a prism or a mirror, can be selectively arranged between the object and the imaging plane in the imaging optical path. This provides a higher degree of spatial flexibility in the image capturing optical system, allowing the thinner and lighter electronic device to be independent of the overall optical length of the image capturing optical system. For further explanation, please refer to... Figure 24 and Figure 25 ,in Figure 24 This is a schematic diagram illustrating an arrangement of the optical path deflection element according to the present invention in an image capturing optical system, and Figure 25 This is a schematic diagram illustrating another configuration of the optical path reversing element according to the present invention in an image capturing optical system. For example... Figure 24 and Figure 25 As shown, the image capturing optical system can travel along the optical path from the subject (not shown) to the imaging plane IM, and sequentially includes a first optical axis OA1, an optical path deflection element LF, and a second optical axis OA2, wherein the optical path deflection element LF can be as follows: Figure 24 The image shown is positioned between the lens group LG of the subject and the image capturing optical system, or as shown in the diagram. Figure 25 The diagram shows the lens group LG positioned between the image capturing optical system and the imaging plane IM. Please also refer to... Figure 26 This is a schematic diagram illustrating an arrangement of two optical path deflection elements according to the present invention in an image capturing optical system. For example... Figure 26 As shown, the image capturing optical system can also travel along the optical path from the subject (not shown) to the imaging plane IM, and sequentially includes a first optical axis OA1, a first optical path reversing element LF1, a second optical axis OA2, a second optical path reversing element LF2, and a third optical axis OA3. The first optical path reversing element LF1 is positioned between the subject and the lens group LG of the image capturing optical system, and the second optical path reversing element LF2 is positioned between the lens group LG of the image capturing optical system and the imaging plane IM. Furthermore, the direction of light travel along the first optical axis OA1 can be as follows: Figure 26 The direction shown is the same as the direction of light travel along the third optical axis OA3. The image capturing optical system may also be selectively configured with more than three optical path deflection elements, and the present invention is not limited to the type, number and position of the optical path deflection elements disclosed in the figures.

[0165] The image capturing optical system disclosed in this invention may include at least one aperture stop, which may be located in front of the first lens, between the lenses, or after the last lens. The aperture stop may be of the type such as a glare stop or a field stop, and may be used to reduce stray light and help improve image quality.

[0166] In the image capturing optical system disclosed in this invention, the aperture can be configured as a front aperture or a central aperture. A front aperture means the aperture is positioned between the subject and the first lens, while a central aperture means the aperture is positioned between the first lens and the imaging plane. A front aperture allows for a longer distance between the exit pupil and the imaging plane, resulting in a telecentric effect and increasing the efficiency of image reception by the CCD or CMOS sensor. A central aperture helps to expand the field of view of the image capturing optical system.

[0167] This invention may appropriately incorporate a variable aperture element, which can be a mechanical component or a light-regulating element, and whose aperture size and shape can be controlled electrically or by electrical signals. The mechanical component may include movable parts such as a blade assembly or a shielding plate; the light-regulating element may include a filter element, an electrochromic material, a liquid crystal layer, or other masking materials. This variable aperture element can enhance image adjustment capabilities by controlling the amount of light entering the image or the exposure time. Furthermore, this variable aperture element can also be the aperture of this invention, allowing image quality, such as depth of field or exposure speed, to be adjusted by changing the aperture value.

[0168] Based on the above implementation methods, specific embodiments are presented below and described in detail with reference to the accompanying drawings.

[0169] <First Embodiment>

[0170] Please refer to Figures 1 to 2 ,in Figure 1 A schematic diagram of an image-capturing device according to a first embodiment of the present invention is shown. Figure 2 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the first embodiment. Figure 1 As can be seen, the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 199. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes an aperture 100, a first lens 110, a second lens 120, an aperture stop 101, a third lens 130, an aperture stop 102, a fourth lens 140, a fifth lens 150, a sixth lens 160, a seventh lens 170, an eighth lens 180, a ninth lens 190, a tenth lens 193, a filter element 197, and an imaging surface 198. The electronic photosensitive element 199 is disposed on the imaging surface 198. The image capturing optical system includes ten lenses (110, 120, 130, 140, 150, 160, 170, 180, 190, 193), and there are no other interposed lenses between the lenses.

[0171] The first lens 110 has positive refractive power and is made of plastic. Its object-side surface 111 is convex near the optical axis, and its image-side surface 112 is concave near the optical axis. Both of its surfaces are aspherical.

[0172] The second lens 120 has negative refractive power and is made of plastic. Its object-side surface 121 is convex near the optical axis, and its image-side surface 122 is concave near the optical axis. Both surfaces are aspherical, and its image-side surface 122 has a point of inflection.

[0173] The third lens 130 has negative refractive power and is made of plastic. Its object-side surface 131 is convex near the optical axis, and its image-side surface 132 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 131 has two inflection points, its image-side surface 132 has two inflection points, and its object-side surface 131 has a critical point off-axis.

[0174] The fourth lens 140 has positive refractive power and is made of plastic. Its object-side surface 141 is convex near the optical axis, and its image-side surface 142 is convex near the optical axis. Both of its surfaces are aspherical. Its object-side surface 141 has a point of inflection and its object-side surface 141 has a critical point off-axis.

[0175] The fifth lens 150 has negative refractive power and is made of plastic. Its object-side surface 151 is concave near the optical axis, and its image-side surface 152 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 151 has a point of inflection, its image-side surface 152 has a point of inflection, its object-side surface 151 has a critical point off-axis, and its image-side surface 152 has a critical point off-axis.

[0176] The sixth lens 160 has positive refractive power and is made of plastic. Its object-side surface 161 is concave near the optical axis, and its image-side surface 162 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 161 has a point of inflection, its image-side surface 162 has a point of inflection, and its object-side surface 161 has a critical point off-axis.

[0177] The seventh lens 170 has negative refractive power and is made of plastic. Its object-side surface 171 is convex near the optical axis, and its image-side surface 172 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 171 has two inflection points, and its image-side surface 172 has two inflection points. Its object-side surface 171 has a critical point off-axis, and its image-side surface 172 has a critical point off-axis.

[0178] The eighth lens 180 has positive refractive power and is made of plastic. Its object-side surface 181 is convex near the optical axis, and its image-side surface 182 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 181 has two inflection points, its image-side surface 182 has one inflection point, its object-side surface 181 has a critical point off-axis, and its image-side surface 182 has a convex critical point off-axis.

[0179] The ninth lens 190 has positive refractive power and is made of plastic. Its object-side surface 191 is convex near the optical axis, and its image-side surface 192 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 191 has four inflection points, and its image-side surface 192 has two inflection points. Its object-side surface 191 has a concave critical point off-axis, and its image-side surface 192 has a convex critical point off-axis.

[0180] The tenth lens 193 has negative refractive power and is made of plastic. Its object-side surface 194 is concave near the optical axis, and its image-side surface 195 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 194 has one inflection point, and its image-side surface 195 has two inflection points. Its object-side surface 194 has a critical point off-axis, and its image-side surface 195 has a critical point off-axis.

[0181] The filter element 197 is made of glass and is located between the tenth lens 193 and the imaging surface 198, without affecting the focal length of the image capturing optical system.

[0182] The equations for the aspherical surfaces of the above lenses are expressed as follows:

[0183]

[0184] X: The displacement parallel to the optical axis from the intersection of the aspherical surface and the optical axis to a point on the aspherical surface at a distance Y from the optical axis;

[0185] Y: The perpendicular distance between a point on the aspherical curve and the optical axis;

[0186] R: Radius of curvature;

[0187] k: cone coefficient; and

[0188] Ai: The i-th order aspherical coefficient.

[0189] In the image capturing optical system of the first embodiment, the focal length of the image capturing optical system is f, the aperture value of the image capturing optical system is Fno, and half of the maximum field of view of the image capturing optical system is HFOV, with the following values: f = 7.37 mm, Fno = 1.49, HFOV = 39.2 degrees.

[0190] The Abbe number of the first lens 110 is V1, the Abbe number of the second lens 120 is V2, the Abbe number of the third lens 130 is V3, the Abbe number of the fourth lens 140 is V4, the Abbe number of the fifth lens 150 is V5, the Abbe number of the sixth lens 160 is V6, the Abbe number of the seventh lens 170 is V7, the Abbe number of the eighth lens 180 is V8, the Abbe number of the ninth lens 190 is V9, the Abbe number of the tenth lens 193 is V10, and the Abbe number of the i-th lens is Vi. The refractive index of the first lens 110 is N1, the refractive index of the second lens 120 is N2, and the refractive index of the third lens 1... The refractive index of lens 130 is N3, the refractive index of the fourth lens 140 is N4, the refractive index of the fifth lens 150 is N5, the refractive index of the sixth lens 160 is N6, the refractive index of the seventh lens 170 is N7, the refractive index of the eighth lens 180 is N8, the refractive index of the ninth lens 190 is N9, the refractive index of the tenth lens 193 is N10, and the refractive index of the i-th lens is Ni. The minimum value of Vi / Ni is (Vi / Ni)min, which satisfies the following condition: (Vi / Ni)min = 8.76, where i = 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. In this embodiment, among the first lens 110 to the tenth lens 193, the Vi / Ni of the third lens 130 (i.e., V3 / N3) is less than the Vi / Ni of the other lenses, therefore (Vi / Ni)min is equal to the Vi / Ni of the third lens 130.

[0191] The Abbe number of the second lens 120 is V2, the focal length of the image capturing optical system is f, and the focal length of the second lens 120 is f2, which satisfies the following condition: |V2×f / f2|=5.87.

[0192] The Abbe number of the third lens 130 is V3, the focal length of the image capturing optical system is f, and the focal length of the third lens 130 is f3, which satisfies the following condition: |V3×f / f3|=2.01.

[0193] The Abbe number of the second lens 120 is V2, and the Abbe number of the third lens 130 is V3, which satisfies the following condition: V2 + V3 = 33.3.

[0194] The minimum Abbe number among all lenses in the image capturing optical system is Vmin, which satisfies the following condition: Vmin = 14.9. In this embodiment, among the first lens 110 to the tenth lens 193, the Abbe number of the third lens 130 is less than the Abbe numbers of the other lenses, therefore Vmin is equal to the Abbe number of the third lens 130.

[0195] In the image capturing optical system, the sum of the optical axis spacing between all adjacent lenses is ΣAT, and the optical axis spacing between the sixth lens 160 and the seventh lens 170 is T67, which satisfies the following condition: ΣAT / T67 = 12.54. In this embodiment, the optical axis spacing between two adjacent lenses refers to the optical axis distance between two adjacent mirror surfaces of two adjacent lenses. In this embodiment, ΣAT is the sum of the optical axis spacing between any two adjacent lenses among the first lens 110, second lens 120, third lens 130, fourth lens 140, fifth lens 150, sixth lens 160, seventh lens 170, eighth lens 180, ninth lens 190, and tenth lens 193.

[0196] In the image capturing optical system, the maximum distance between all adjacent lenses on the optical axis is ATmax, and the minimum thickness of all lenses on the optical axis is CTmin, which satisfies the following condition: ATmax / CTmin = 3.54. In this embodiment, among the first lens 110 to the tenth lens 193, the distance between the ninth lens 190 and the tenth lens 193 on the optical axis is greater than the distance between any two other adjacent lenses on the optical axis. Therefore, ATmax is equal to the distance between the ninth lens 190 and the tenth lens 193 on the optical axis. In this embodiment, among the first lens 110 to the tenth lens 193, the thickness of the third lens 130 and the fifth lens 150 on the optical axis is substantially the same, and both are less than the thickness of the other lenses on the optical axis. Therefore, CTmin is equal to the thickness of the third lens 130 or the fifth lens 150 on the optical axis.

[0197] The thickness of the second lens 120 on the optical axis is CT2, the thickness of the third lens 130 on the optical axis is CT3, and the distance between the second lens 120 and the third lens 130 on the optical axis is T23, which satisfies the following condition: (CT2+CT3) / T23=1.17.

[0198] The thickness of the seventh lens 170 on the optical axis is CT7, and the distance between the sixth lens 160 and the seventh lens 170 on the optical axis is T67, which satisfies the following condition: CT7 / T67=2.14.

[0199] The distance on the optical axis from the object-side surface 111 of the first lens to the image-side surface 122 of the second lens is Dr1r4, and the distance on the optical axis from the object-side surface 131 of the third lens to the image-side surface 162 of the sixth lens is Dr5r12, which satisfies the following condition: Dr1r4 / Dr5r12=0.74.

[0200] The distance on the optical axis from the object-side surface 111 of the first lens to the image-side surface 162 of the sixth lens is Dr1r12, and the distance on the optical axis from the object-side surface 171 of the seventh lens to the image-side surface 195 of the tenth lens is Dr13r20, which satisfies the following condition: Dr1r12 / Dr13r20=1.08.

[0201] The distance on the optical axis from the object-side surface 111 of the first lens to the image-side surface 162 of the sixth lens is Dr1r12, and the distance on the optical axis between the second lens 120 and the third lens 130 is T23, which satisfies the following condition: Dr1r12 / T23=7.77.

[0202] The optical axis spacing between the first lens 110 and the second lens 120 is T12, the optical axis spacing between the second lens 120 and the third lens 130 is T23, the optical axis spacing between the third lens 130 and the fourth lens 140 is T34, the optical axis spacing between the fourth lens 140 and the fifth lens 150 is T45, and the optical axis spacing between the fifth lens 150 and the sixth lens 160 is T56. These distances satisfy the following condition: (T12+T34+T45+T56) / T23=0.83.

[0203] The distance between the fourth lens 140 and the fifth lens 150 on the optical axis is T45, and the distance between the sixth lens 160 and the seventh lens 170 on the optical axis is T67, which satisfies the following condition: T67 / T45=3.38.

[0204] The distance on the optical axis from the object-side surface 111 of the first lens to the image-side surface 195 of the tenth lens is TD, and the distance on the optical axis between the second lens 120 and the third lens 130 is T23, which satisfies the following condition: TD / T23=15.37.

[0205] The distance on the optical axis from the object-side surface 111 of the first lens to the imaging surface 198 is TL. The focal length of the image capturing optical system is f. The maximum imaging height of the image capturing optical system is ImgH. The entrance pupil diameter of the image capturing optical system is EPD. It satisfies the following condition: (TL×f) / (ImgH×EPD)=2.31.

[0206] The distance on the optical axis from the object-side surface 111 of the first lens to the imaging surface 198 is TL, and the focal length of the image capturing optical system is f, which satisfies the following condition: TL / f = 1.29.

[0207] The distance on the optical axis from the object-side surface 111 of the first lens to the imaging surface 198 is TL, and the maximum imaging height of the image capturing optical system is ImgH, which satisfies the following condition: TL / ImgH=1.55.

[0208] The radius of curvature of the object-side surface 111 of the first lens is R1, and the thickness of the first lens 110 on the optical axis is CT1, which satisfies the following condition: R1 / CT1=3.11.

[0209] The radius of curvature of the image-side surface 122 of the second lens is R4, and the focal length of the second lens 120 is f2, which satisfies the following condition: R4 / |f2|=0.23.

[0210] The radius of curvature of the object-side surface 181 of the eighth lens is R15, and the focal length of the eighth lens 180 is f8, which satisfies the following condition: |R15 / f8|=0.19.

[0211] The focal length of the image capturing optical system is f. The focal lengths of the first lens 110 are f1, the second lens 120 is f2, the third lens 130 is f3, the fourth lens 140 is f4, the fifth lens 150 is f5, the sixth lens 160 is f6, the seventh lens 170 is f7, the eighth lens 180 is f8, and the ninth lens 190 is f9. The focal length of lens 193 is f10, which satisfies the following conditions: f / f1 = 0.99; |f / f2| = 0.32; |f / f3| = 0.13; |f / f4| = 0.40; |f / f5| = 0.33; |f / f6| = 0.13; |f / f7| = 0.09; |f / f8| = 0.28; |f / f9| = 0.43; and f / f10 = -1.04.

[0212] The focal length of the image capturing optical system is f, the focal length of the second lens 120 is f2, the focal length of the third lens 130 is f3, the focal length of the fourth lens 140 is f4, the focal length of the fifth lens 150 is f5, the focal length of the sixth lens 160 is f6, the focal length of the seventh lens 170 is f7, the focal length of the eighth lens 180 is f8, the focal length of the ninth lens 190 is f9, and the focal length of the i-th lens is fi, which satisfies the following condition: Σ|f / fi|=2.12, i=2,3,4,5,6,7,8 and9.

[0213] The focal length of the image capturing optical system is f, and the radius of curvature of the image-side surface 122 of the second lens is R4, which satisfies the following condition: f / R4=1.39.

[0214] The focal length of the image capturing optical system is f, and the radius of curvature of the object-side surface 181 of the eighth lens is R15, which satisfies the following condition: f / R15=1.46.

[0215] The focal length of the image capturing optical system is f, the radius of curvature of the object-side surface 191 of the ninth lens is R17, and the radius of curvature of the image-side surface 192 of the ninth lens is R18, which satisfies the following condition: f / R17+f / R18=4.12.

[0216] The maximum effective radius of the object-side surface 111 of the first lens is Y11, and the maximum effective radius of the image-side surface 162 of the sixth lens is Y62, which satisfies the following condition: Y11 / Y62=0.92.

[0217] The maximum effective radius of the object-side surface 111 of the first lens is Y11, and the maximum effective radius of the image-side surface 195 of the tenth lens is Y102, which satisfies the following condition: Y102 / Y11=2.15.

[0218] The maximum effective radius of the object-side surface 171 of the seventh lens is Y71, and the maximum effective radius of the image-side surface 195 of the tenth lens is Y102, which satisfies the following condition: Y102 / Y71=1.95.

[0219] The perpendicular distance between the convex critical point of the image-side surface 182 of the eighth lens off-axis and the optical axis is Yc82, and the maximum effective radius of the image-side surface 182 of the eighth lens is Y82, which satisfies the following condition: Yc82 / Y82=0.61.

[0220] The perpendicular distance between the concave critical point of the object-side surface 191 of the ninth lens off-axis and the optical axis is Yc91, and the maximum effective radius of the object-side surface 191 of the ninth lens is Y91, which satisfies the following condition: Yc91 / Y91=0.48.

[0221] The perpendicular distance between the convex critical point of the image-side surface 192 of the ninth lens off-axis and the optical axis is Yc92. The maximum effective radius of the image-side surface 192 of the ninth lens is Y92, which satisfies the following condition: Yc92 / Y92=0.52.

[0222] Please refer to Table 1 and Table 2 below.

[0223]

[0224]

[0225]

[0226] Table 1 is... Figure 1 The first embodiment provides detailed structural data, where the units for radius of curvature, thickness, and focal length are millimeters (mm), and surfaces 0 to 26 sequentially represent the surfaces from the object side to the image side. Table 2 shows the aspherical data in the first embodiment, where k is the cone coefficient in the aspherical curve equation, and A4 to A26 represent the 4th to 26th order aspherical coefficients of each surface. Furthermore, the tables for the following embodiments are corresponding schematic diagrams and aberration curves for each embodiment. The definitions of the data in the tables are the same as those in Tables 1 and 2 of the first embodiment, and will not be repeated here.

[0227] <Second Embodiment>

[0228] Please refer to Figures 3 to 4 ,in Figure 3 A schematic diagram of an image-capturing device according to a second embodiment of the present invention is shown. Figure 4 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the second embodiment. Figure 3 As can be seen, the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 299. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes an aperture 200, a first lens 210, a second lens 220, an aperture stop 201, a third lens 230, an aperture stop 202, a fourth lens 240, a fifth lens 250, a sixth lens 260, a seventh lens 270, an eighth lens 280, a ninth lens 290, a tenth lens 293, a filter element 297, and an imaging surface 298. The electronic photosensitive element 299 is disposed on the imaging surface 298. The image capturing optical system includes ten lenses (210, 220, 230, 240, 250, 260, 270, 280, 290, 293), and there are no other interposed lenses between the lenses.

[0229] The first lens 210 has positive refractive power and is made of plastic. Its object-side surface 211 is convex near the optical axis, and its image-side surface 212 is concave near the optical axis. Both of its surfaces are aspherical.

[0230] The second lens 220 has negative refractive power and is made of plastic. Its object-side surface 221 is concave near the optical axis, and its image-side surface 222 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 221 has a point of inflection, its image-side surface 222 has a point of inflection, and its object-side surface 221 has a critical point off-axis.

[0231] The third lens 230 has positive refractive power and is made of plastic. Its object-side surface 231 is convex near the optical axis, and its image-side surface 232 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 231 has one inflection point, and its image-side surface 232 has two inflection points. Its object-side surface 231 has one critical point off-axis, and its image-side surface 232 has two critical points off-axis.

[0232] The fourth lens 240 has negative refractive power and is made of plastic. Its object-side surface 241 is convex near the optical axis, and its image-side surface 242 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 241 has two inflection points, its image-side surface 242 has one inflection point, and its image-side surface 242 has a critical point off-axis.

[0233] The fifth lens 250 has positive refractive power and is made of plastic. Its object-side surface 251 is convex near the optical axis, and its image-side surface 252 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 251 has two inflection points, its image-side surface 252 has two inflection points, and its image-side surface 252 has two critical points off-axis.

[0234] The sixth lens 260 has positive refractive power and is made of plastic. Its object-side surface 261 is convex near the optical axis, and its image-side surface 262 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 261 has three inflection points, its image-side surface 262 has one inflection point, and its object-side surface 261 has two critical points off-axis.

[0235] The seventh lens 270 has negative refractive power and is made of plastic. Its object-side surface 271 is concave near the optical axis, and its image-side surface 272 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 271 has one inflection point, its image-side surface 272 has two inflection points, and its image-side surface 272 has a critical point off-axis.

[0236] The eighth lens 280 has positive refractive power and is made of plastic. Its object-side surface 281 is convex near the optical axis, and its image-side surface 282 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 281 has two inflection points, its image-side surface 282 has one inflection point, its object-side surface 281 has a critical point off-axis, and its image-side surface 282 has a convex critical point off-axis.

[0237] The ninth lens 290 has positive refractive power and is made of plastic. Its object-side surface 291 is convex near the optical axis, and its image-side surface 292 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 291 has four inflection points, and its image-side surface 292 has two inflection points. Its object-side surface 291 has a concave critical point off-axis, and its image-side surface 292 has a convex critical point off-axis.

[0238] The tenth lens 293 has negative refractive power and is made of plastic. Its object-side surface 294 is concave near the optical axis, and its image-side surface 295 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 294 has one inflection point, and its image-side surface 295 has two inflection points. Its object-side surface 294 has a critical point off-axis, and its image-side surface 295 has a critical point off-axis.

[0239] The filter element 297 is made of glass and is located between the tenth lens 293 and the imaging surface 298, and does not affect the focal length of the image capturing optical system.

[0240] Please refer to Table 3 and Table 4 below.

[0241]

[0242]

[0243]

[0244] In the second embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in the table below are the same as in the first embodiment and will not be repeated here.

[0245]

[0246] <Third Embodiment>

[0247] Please refer to Figures 5 to 6 ,in Figure 5 A schematic diagram of an image-capturing device according to a third embodiment of the present invention is shown. Figure 6 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the third embodiment. Figure 5 As can be seen, the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 399. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes an aperture 300, a first lens 310, a second lens 320, an aperture stop 301, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, a seventh lens 370, an eighth lens 380, a ninth lens 390, a tenth lens 393, a filter element 397, and an imaging surface 398. The electronic photosensitive element 399 is disposed on the imaging surface 398. The image capturing optical system includes ten lenses (310, 320, 330, 340, 350, 360, 370, 380, 390, 393), and there are no other interposed lenses between each lens.

[0248] The first lens 310 has positive refractive power and is made of plastic. Its object-side surface 311 is convex near the optical axis, and its image-side surface 312 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 311 has one inflection point, its image-side surface 312 has two inflection points, and its image-side surface 312 has two critical points off-axis.

[0249] The second lens 320 has negative refractive power and is made of plastic. Its object-side surface 321 is convex near the optical axis, and its image-side surface 322 is concave near the optical axis. Both of its surfaces are aspherical.

[0250] The third lens 330 has positive refractive power and is made of plastic. Its object-side surface 331 is convex near the optical axis, and its image-side surface 332 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 331 has a point of inflection, and its image-side surface 332 has a point of inflection. Its object-side surface 331 has a critical point off-axis, and its image-side surface 332 has a critical point off-axis.

[0251] The fourth lens 340 has positive refractive power and is made of plastic. Its object-side surface 341 is concave near the optical axis, and its image-side surface 342 is convex near the optical axis. Both surfaces are aspherical, and its object-side surface 341 has a point of inflection.

[0252] The fifth lens 350 has negative refractive power and is made of plastic. Its object-side surface 351 is concave near the optical axis, and its image-side surface 352 is concave near the optical axis. Both surfaces are aspherical. Its image-side surface 352 has two inflection points and two critical points off-axis.

[0253] The sixth lens 360 has negative refractive power and is made of plastic. Its object-side surface 361 is convex near the optical axis, and its image-side surface 362 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 361 has three inflection points, its image-side surface 362 has two inflection points, its object-side surface 361 has two critical points off-axis, and its image-side surface 362 has one critical point off-axis.

[0254] The seventh lens 370 has positive refractive power and is made of plastic. Its object-side surface 371 is convex near the optical axis, and its image-side surface 372 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 371 has one inflection point, and its image-side surface 372 has two inflection points. Its object-side surface 371 has a critical point off-axis, and its image-side surface 372 has a critical point off-axis.

[0255] The eighth lens 380 has positive refractive power and is made of plastic. Its object-side surface 381 is convex near the optical axis, and its image-side surface 382 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 381 has two inflection points, and its image-side surface 382 has two inflection points. Its object-side surface 381 has a critical point off-axis, and its image-side surface 382 has two critical points off-axis. One of the two critical points of its image-side surface 382 is a convex critical point.

[0256] The ninth lens 390 has negative refractive power and is made of plastic. Its object-side surface 391 is convex near the optical axis, and its image-side surface 392 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 391 has two inflection points, and its image-side surface 392 has two inflection points. Its object-side surface 391 has a concave critical point off-axis, and its image-side surface 392 has a convex critical point off-axis.

[0257] The tenth lens 393 has negative refractive power and is made of plastic. Its object-side surface 394 is concave near the optical axis, and its image-side surface 395 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 394 has a point of inflection, and its image-side surface 395 has a point of inflection. Its object-side surface 394 has a critical point off-axis, and its image-side surface 395 has a critical point off-axis.

[0258] The filter element 397 is made of glass and is located between the tenth lens 393 and the imaging surface 398, without affecting the focal length of the image capturing optical system.

[0259] Please refer to Table 5 and Table 6 below.

[0260]

[0261]

[0262]

[0263]

[0264] In the third embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in the table below are the same as in the first embodiment and will not be repeated here.

[0265]

[0266] <Fourth Embodiment>

[0267] Please refer to Figures 7 to 8 ,in Figure 7 A schematic diagram of an image-capturing device according to a fourth embodiment of the present invention is shown. Figure 8 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fourth embodiment. Figure 7It is known that the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 499. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes an aperture 400, a first lens 410, a second lens 420, an aperture stop 401, a third lens 430, an aperture stop 402, a fourth lens 440, a fifth lens 450, a sixth lens 460, a seventh lens 470, an eighth lens 480, a ninth lens 490, a tenth lens 493, a filter element 497, and an imaging surface 498. The electronic photosensitive element 499 is disposed on the imaging surface 498. The image capturing optical system includes ten lenses (410, 420, 430, 440, 450, 460, 470, 480, 490, 493), and there are no other interposed lenses between each lens.

[0268] The first lens 410 has positive refractive power and is made of plastic. Its object-side surface 411 is convex near the optical axis, and its image-side surface 412 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 411 has a point of inflection, and its image-side surface 412 has a point of inflection.

[0269] The second lens 420 has negative refractive power and is made of plastic. Its object-side surface 421 is convex near the optical axis, and its image-side surface 422 is concave near the optical axis. Both of its surfaces are aspherical.

[0270] The third lens 430 has negative refractive power and is made of plastic. Its object-side surface 431 is concave near the optical axis, and its image-side surface 432 is concave near the optical axis. Both surfaces are aspherical. Its image-side surface 432 has two inflection points and two critical points off-axis.

[0271] The fourth lens 440 has positive refractive power and is made of plastic. Its object-side surface 441 is convex near the optical axis, and its image-side surface 442 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 441 has two inflection points, its image-side surface 442 has two inflection points, and its object-side surface 441 has two critical points off-axis.

[0272] The fifth lens 450 has negative refractive power and is made of plastic. Its object-side surface 451 is concave near the optical axis, and its image-side surface 452 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 451 has two inflection points, and its image-side surface 452 has two inflection points.

[0273] The sixth lens 460 has positive refractive power and is made of plastic. Its object-side surface 461 is convex near the optical axis, and its image-side surface 462 is convex near the optical axis. Both of its surfaces are aspherical. Its object-side surface 461 has three inflection points, its image-side surface 462 has one inflection point, and its object-side surface 461 has two critical points off-axis.

[0274] The seventh lens 470 has negative refractive power and is made of plastic. Its object-side surface 471 is concave near the optical axis, and its image-side surface 472 is convex near the optical axis. Both surfaces are aspherical, and its image-side surface 472 has a point of inflection.

[0275] The eighth lens 480 has positive refractive power and is made of plastic. Its object-side surface 481 is convex near the optical axis, and its image-side surface 482 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 481 has two inflection points, and its image-side surface 482 has two inflection points. Its object-side surface 481 has a critical point off-axis, and its image-side surface 482 has a convex critical point off-axis.

[0276] The ninth lens 490 has positive refractive power and is made of plastic. Its object-side surface 491 is convex near the optical axis, and its image-side surface 492 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 491 has two inflection points, and its image-side surface 492 has two inflection points. Its object-side surface 491 has a concave critical point off-axis, and its image-side surface 492 has a convex critical point off-axis.

[0277] The tenth lens 493 has negative refractive power and is made of plastic. Its object-side surface 494 is concave near the optical axis, and its image-side surface 495 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 494 has one inflection point, its image-side surface 495 has two inflection points, and its image-side surface 495 has a critical point off-axis.

[0278] The filter element 497 is made of glass and is located between the tenth lens 493 and the imaging surface 498. It does not affect the focal length of the image capturing optical system.

[0279] Please refer to Tables 7 and 8 below.

[0280]

[0281]

[0282]

[0283]

[0284] In the fourth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in the table below are the same as in the first embodiment and will not be repeated here.

[0285]

[0286]

[0287] <Fifth Embodiment>

[0288] Please refer to Figures 9 to 10 ,in Figure 9 A schematic diagram of an image-capturing device according to a fifth embodiment of the present invention is shown. Figure 10 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fifth embodiment. Figure 9 As can be seen, the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 599. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes an aperture 500, a first lens 510, a second lens 520, an aperture stop 501, a third lens 530, an aperture stop 502, a fourth lens 540, a fifth lens 550, a sixth lens 560, a seventh lens 570, an aperture stop 503, an eighth lens 580, a ninth lens 590, a tenth lens 593, a filter element 597, and an imaging surface 598. The electronic photosensitive element 599 is disposed on the imaging surface 598. The image capturing optical system includes ten lenses (510, 520, 530, 540, 550, 560, 570, 580, 590, 593), and there are no other interposed lenses between each lens.

[0289] The first lens 510 has positive refractive power and is made of glass. Its object-side surface 511 is convex near the optical axis, and its image-side surface 512 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 511 has a point of inflection, and its image-side surface 512 has a point of inflection.

[0290] The second lens 520 has negative refractive power and is made of plastic. Its object-side surface 521 is convex near the optical axis, and its image-side surface 522 is concave near the optical axis. Both of its surfaces are aspherical.

[0291] The third lens 530 has negative refractive power and is made of plastic. Its object-side surface 531 is convex near the optical axis, and its image-side surface 532 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 531 has one inflection point, its image-side surface 532 has two inflection points, and its object-side surface 531 has a critical point off-axis.

[0292] The fourth lens 540 has positive refractive power and is made of plastic. Its object-side surface 541 is convex near the optical axis, and its image-side surface 542 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 541 has two inflection points, its image-side surface 542 has three inflection points, and its image-side surface 542 has a critical point off-axis.

[0293] The fifth lens 550 has negative refractive power and is made of plastic. Its object-side surface 551 is concave near the optical axis, and its image-side surface 552 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 551 has one inflection point, and its image-side surface 552 has two inflection points. Its object-side surface 551 has one critical point off-axis, and its image-side surface 552 has two critical points off-axis.

[0294] The sixth lens 560 has positive refractive power and is made of plastic. Its object-side surface 561 is convex near the optical axis, and its image-side surface 562 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 561 has three inflection points, its image-side surface 562 has three inflection points, its object-side surface 561 has three critical points off-axis, and its image-side surface 562 has three critical points off-axis.

[0295] The seventh lens 570 has positive refractive power and is made of plastic. Its object-side surface 571 is convex near the optical axis, and its image-side surface 572 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 571 has two inflection points, and its image-side surface 572 has four inflection points. Its object-side surface 571 has a critical point off-axis, and its image-side surface 572 has a critical point off-axis.

[0296] The eighth lens 580 has positive refractive power and is made of plastic. Its object-side surface 581 is convex near the optical axis, and its image-side surface 582 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 581 has two inflection points, and its image-side surface 582 has two inflection points. Its object-side surface 581 has a critical point off-axis, and its image-side surface 582 has a convex critical point off-axis.

[0297] The ninth lens 590 has positive refractive power and is made of plastic. Its object-side surface 591 is convex near the optical axis, and its image-side surface 592 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 591 has three inflection points, and its image-side surface 592 has three inflection points. Its object-side surface 591 has a concave critical point off-axis, and its image-side surface 592 has a convex critical point off-axis.

[0298] The tenth lens 593 has negative refractive power and is made of plastic. Its object-side surface 594 is concave near the optical axis, and its image-side surface 595 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 594 has two inflection points, and its image-side surface 595 has two inflection points. Its object-side surface 594 has a critical point off-axis, and its image-side surface 595 has a critical point off-axis.

[0299] The filter element 597 is made of glass and is located between the tenth lens 593 and the imaging surface 598. It does not affect the focal length of the image capturing optical system.

[0300] Please refer to Tables 9 and 10 below.

[0301]

[0302]

[0303]

[0304]

[0305] In the fifth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in the table below are the same as in the first embodiment and will not be repeated here.

[0306]

[0307]

[0308] <Sixth Embodiment>

[0309] Please refer to Figures 11 to 12 ,in Figure 11 A schematic diagram of an image-capturing device according to a sixth embodiment of the present invention is shown. Figure 12 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the sixth embodiment. Figure 11As can be seen, the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 699. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes an aperture 600, a first lens 610, a second lens 620, an aperture stop 601, a third lens 630, an aperture stop 602, a fourth lens 640, a fifth lens 650, a sixth lens 660, a seventh lens 670, an aperture stop 603, an eighth lens 680, a ninth lens 690, a tenth lens 693, a filter element 697, and an imaging surface 698. The electronic photosensitive element 699 is disposed on the imaging surface 698. The image capturing optical system includes ten lenses (610, 620, 630, 640, 650, 660, 670, 680, 690, 693), and there are no other interposed lenses between the lenses.

[0310] The first lens 610 has positive refractive power and is made of plastic. Its object-side surface 611 is convex near the optical axis, and its image-side surface 612 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 611 has a point of inflection, and its image-side surface 612 has a point of inflection.

[0311] The second lens 620 has positive refractive power and is made of plastic. Its object-side surface 621 is convex near the optical axis, and its image-side surface 622 is concave near the optical axis. Both of its surfaces are aspherical.

[0312] The third lens 630 has negative refractive power and is made of plastic. Its object-side surface 631 is convex near the optical axis, and its image-side surface 632 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 631 has one inflection point, its image-side surface 632 has two inflection points, and its object-side surface 631 has a critical point off-axis.

[0313] The fourth lens 640 has positive refractive power and is made of plastic. Its object-side surface 641 is convex near the optical axis, and its image-side surface 642 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 641 has two inflection points, and its image-side surface 642 has one inflection point. Its object-side surface 641 has two critical points off-axis, and its image-side surface 642 has one critical point off-axis.

[0314] The fifth lens 650 has negative refractive power and is made of plastic. Its object-side surface 651 is concave near the optical axis, and its image-side surface 652 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 651 has two inflection points, and its image-side surface 652 has one inflection point. Its object-side surface 651 has two critical points off-axis, and its image-side surface 652 has one critical point off-axis.

[0315] The sixth lens 660 has positive refractive power and is made of plastic. Its object-side surface 661 is convex near the optical axis, and its image-side surface 662 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 661 has three inflection points, and its image-side surface 662 has four inflection points. Its object-side surface 661 has three critical points off-axis, and its image-side surface 662 has three critical points off-axis.

[0316] The seventh lens 670 has positive refractive power and is made of plastic. Its object-side surface 671 is convex near the optical axis, and its image-side surface 672 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 671 has two inflection points, and its image-side surface 672 has four inflection points. Its object-side surface 671 has a critical point off-axis, and its image-side surface 672 has a critical point off-axis.

[0317] The eighth lens 680 has negative refractive power and is made of plastic. Its object-side surface 681 is convex near the optical axis, and its image-side surface 682 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 681 has two inflection points, and its image-side surface 682 has two inflection points. Its object-side surface 681 has a critical point off-axis, and its image-side surface 682 has a convex critical point off-axis.

[0318] The ninth lens 690 has positive refractive power and is made of plastic. Its object-side surface 691 is convex near the optical axis, and its image-side surface 692 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 691 has two inflection points, and its image-side surface 692 has two inflection points. Its object-side surface 691 has a concave critical point off-axis, and its image-side surface 692 has a convex critical point off-axis.

[0319] The tenth lens 693 has negative refractive power and is made of plastic. Its object-side surface 694 is concave near the optical axis, and its image-side surface 695 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 694 has one inflection point, and its image-side surface 695 has three inflection points.

[0320] The filter element 697 is made of glass and is located between the tenth lens 693 and the imaging surface 698, without affecting the focal length of the image capturing optical system.

[0321] Please refer to Table 11 and Table 12 below.

[0322]

[0323]

[0324]

[0325]

[0326] In the sixth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in the table below are the same as in the first embodiment and will not be repeated here.

[0327]

[0328] <Seventh Embodiment>

[0329] Please refer to Figures 13 to 14 ,in Figure 13 A schematic diagram of an image-capturing device according to a seventh embodiment of the present invention is shown. Figure 14 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the seventh embodiment. Figure 13 It is known that the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 799. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes an aperture 700, a first lens 710, a second lens 720, an aperture stop 701, a third lens 730, an aperture stop 702, a fourth lens 740, a fifth lens 750, a sixth lens 760, a seventh lens 770, an aperture stop 703, an eighth lens 780, a ninth lens 790, a tenth lens 793, a filter element 797, and an imaging surface 798. The electronic photosensitive element 799 is disposed on the imaging surface 798. The image capturing optical system includes ten lenses (710, 720, 730, 740, 750, 760, 770, 780, 790, 793), and there are no other interposed lenses between each lens.

[0330] The first lens 710 has positive refractive power and is made of plastic. Its object-side surface 711 is convex near the optical axis, and its image-side surface 712 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 711 has a point of inflection, and its image-side surface 712 has a point of inflection.

[0331] The second lens 720 has positive refractive power and is made of plastic. Its object-side surface 721 is convex near the optical axis, and its image-side surface 722 is concave near the optical axis. Both of its surfaces are aspherical.

[0332] The third lens 730 has negative refractive power and is made of plastic. Its object-side surface 731 is convex near the optical axis, and its image-side surface 732 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 731 has one inflection point, its image-side surface 732 has two inflection points, and its object-side surface 731 has a critical point off-axis.

[0333] The fourth lens 740 has negative refractive power and is made of plastic. Its object-side surface 741 is convex near the optical axis, and its image-side surface 742 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 741 has two inflection points, and its image-side surface 742 has two inflection points.

[0334] The fifth lens 750 has positive refractive power and is made of plastic. Its object-side surface 751 is convex near the optical axis, and its image-side surface 752 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 751 has three inflection points, its image-side surface 752 has two inflection points, and its image-side surface 752 has two critical points off-axis.

[0335] The sixth lens 760 has positive refractive power and is made of plastic. Its object-side surface 761 is convex near the optical axis, and its image-side surface 762 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 761 has three inflection points, its image-side surface 762 has two inflection points, and its object-side surface 761 has a critical point off-axis.

[0336] The seventh lens 770 has negative refractive power and is made of plastic. Its object-side surface 771 is convex near the optical axis, and its image-side surface 772 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 771 has two inflection points, and its image-side surface 772 has four inflection points. Its object-side surface 771 has a critical point off-axis, and its image-side surface 772 has a critical point off-axis.

[0337] The eighth lens 780 has positive refractive power and is made of plastic. Its object-side surface 781 is convex near the optical axis, and its image-side surface 782 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 781 has two inflection points, and its image-side surface 782 has two inflection points. Its object-side surface 781 has a critical point off-axis, and its image-side surface 782 has a convex critical point off-axis.

[0338] The ninth lens 790 has positive refractive power and is made of plastic. Its object-side surface 791 is convex near the optical axis, and its image-side surface 792 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 791 has two inflection points, and its image-side surface 792 has two inflection points. Its object-side surface 791 has a concave critical point off-axis, and its image-side surface 792 has a convex critical point off-axis.

[0339] The tenth lens 793 has negative refractive power and is made of plastic. Its object-side surface 794 is concave near the optical axis, and its image-side surface 795 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 794 has one inflection point, and its image-side surface 795 has two inflection points. Its object-side surface 794 has a critical point off-axis, and its image-side surface 795 has a critical point off-axis.

[0340] The filter element 797 is made of glass and is located between the tenth lens 793 and the imaging surface 798. It does not affect the focal length of the image capturing optical system.

[0341] Please refer to Tables 13 and 14 below.

[0342]

[0343]

[0344]

[0345]

[0346] In the seventh embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in the table below are the same as in the first embodiment and will not be repeated here.

[0347]

[0348]

[0349] <Eighth Embodiment>

[0350] Please refer to Figures 15 to 16 ,in Figure 15 A schematic diagram of an image-capturing device according to an eighth embodiment of the present invention is shown. Figure 16 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the eighth embodiment. Figure 15 It is known that the image capturing device includes an image capturing optical system (unlabeled) and an electronic photosensitive element 899. The image capturing optical system, along the optical path from the object side to the image side, sequentially includes a first lens 810, an aperture 800, a second lens 820, a third lens 830, a fourth lens 840, a fifth lens 850, an aperture stop 801, a sixth lens 860, a seventh lens 870, an eighth lens 880, a ninth lens 890, a tenth lens 893, a filter element 897, and an imaging surface 898. The electronic photosensitive element 899 is disposed on the imaging surface 898. The image capturing optical system includes ten lenses (810, 820, 830, 840, 850, 860, 870, 880, 890, 893), and there are no other interposed lenses between each lens.

[0351] The first lens 810 has positive refractive power and is made of plastic. Its object-side surface 811 is convex near the optical axis, and its image-side surface 812 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 811 has one inflection point, its image-side surface 812 has two inflection points, and its image-side surface 812 has two critical points off-axis.

[0352] The second lens 820 has negative refractive power and is made of plastic. Its object-side surface 821 is convex near the optical axis, and its image-side surface 822 is concave near the optical axis. Both of its surfaces are aspherical.

[0353] The third lens 830 has positive refractive power and is made of plastic. Its object-side surface 831 is concave near the optical axis, and its image-side surface 832 is convex near the optical axis. Both surfaces are aspherical, and its image-side surface 832 has two inflection points.

[0354] The fourth lens 840 has positive refractive power and is made of plastic. Its object-side surface 841 is concave near the optical axis, and its image-side surface 842 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 841 has a point of inflection, its image-side surface 842 has a point of inflection, and its object-side surface 841 has a critical point off-axis.

[0355] The fifth lens 850 has positive refractive power and is made of plastic. Its object-side surface 851 is concave near the optical axis, and its image-side surface 852 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 851 has a point of inflection, and its image-side surface 852 has a point of inflection.

[0356] The sixth lens 860 has negative refractive power and is made of plastic. Its object-side surface 861 is concave near the optical axis, and its image-side surface 862 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 861 has two inflection points, and its image-side surface 862 has two inflection points. Its object-side surface 861 has two critical points off-axis, and its image-side surface 862 has one critical point off-axis.

[0357] The seventh lens 870 has positive refractive power and is made of plastic. Its object-side surface 871 is concave near the optical axis, and its image-side surface 872 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 871 has two inflection points, and its image-side surface 872 has two inflection points.

[0358] The eighth lens 880 has negative refractive power and is made of plastic. Its object-side surface 881 is concave near the optical axis, and its image-side surface 882 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 881 has a point of inflection, its image-side surface 882 has a point of inflection, and its image-side surface 882 has a critical point off-axis.

[0359] The ninth lens 890 has negative refractive power and is made of plastic. Its object-side surface 891 is concave near the optical axis, and its image-side surface 892 is convex near the optical axis. Both surfaces are aspherical. Its object-side surface 891 has three inflection points, and its image-side surface 892 has three inflection points. Its object-side surface 891 has two critical points off-axis, and its image-side surface 892 has two critical points off-axis. One of the two critical points of its object-side surface 891 is a concave critical point, and one of the two critical points of its image-side surface 892 is a convex critical point.

[0360] The tenth lens 893 has negative refractive power and is made of plastic. Its object-side surface 894 is convex near the optical axis, and its image-side surface 895 is concave near the optical axis. Both surfaces are aspherical. Its object-side surface 894 has two inflection points, its image-side surface 895 has two inflection points, its object-side surface 894 has two critical points off-axis, and its image-side surface 895 has one critical point off-axis.

[0361] The filter element 897 is made of glass and is located between the tenth lens 893 and the imaging surface 898. It does not affect the focal length of the image capturing optical system.

[0362] Please refer to Tables 15 and 16 below.

[0363]

[0364]

[0365]

[0366]

[0367] In the eighth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in the table below are the same as in the first embodiment and will not be repeated here.

[0368]

[0369]

[0370] <Ninth Embodiment>

[0371] Please refer to Figure 17This is a perspective view illustrating an image capturing device according to a ninth embodiment of the present invention. In this embodiment, the image capturing device 10 is a camera module. The image capturing device 10 includes an imaging lens 11, a driving device 12, an electronic photosensitive element 13, and an image stabilization module 14. The imaging lens 11 includes the image capturing optical system of the first embodiment described above, a lens barrel (not otherwise labeled) for carrying the image capturing optical system, and a support device (Holder Member, not otherwise labeled). The imaging lens 11 can also be configured with the image capturing optical system of other embodiments described above, and the present invention is not limited thereto. The image capturing device 10 uses the imaging lens 11 to focus light to generate an image, and cooperates with the driving device 12 to focus the image, finally imaging it on the electronic photosensitive element 13 and outputting it as image data.

[0372] The driving device 12 may have an auto-focus function, and its driving method can use a driving system such as a voice coil motor (VCM), microelectromechanical systems (MEMS), piezoelectric systems, and shape memory alloys. The driving device 12 allows the imaging lens 11 to achieve a better imaging position, enabling clear images of the subject at different object distances. In addition, the image capturing device 10 is equipped with a high-sensitivity and low-noise electronic image sensor 13 (such as CMOS or CCD) located on the imaging surface of the image capturing optical system, which can truly present the good image quality of the image capturing optical system.

[0373] The image stabilization module 14 can be, for example, an accelerometer, a gyroscope, or a Hall effect sensor. The drive unit 12 can work in conjunction with the image stabilization module 14 to form an optical image stabilization (OIS) device. By adjusting the changes in different axes of the imaging lens 11, it can compensate for the blurry image caused by shaking during shooting, or use image compensation technology in the imaging software to provide electronic image stabilization (EIS), further improving the image quality of shooting in dynamic and low-light scenes.

[0374] <Tenth Embodiment>

[0375] Please refer to Figures 18 to 20 ,in Figure 18 A perspective view of one side of an electronic device according to a tenth embodiment of the present invention is shown. Figure 19 Draw Figure 18 A three-dimensional schematic diagram of the other side of the electronic device, and Figure 20 Draw Figure 18 System block diagram of an electronic device.

[0376] In this embodiment, the electronic device 20 is a smartphone. The electronic device 20 includes, according to the ninth embodiment, image capturing devices 10, 10a, 10b, 10c, and 10d, a flash module 21, a focus assist module 22, an image signal processor 23, a user interface 24, and an image software processor 25. Image capturing devices 10 and 10a are both located on the same side of the electronic device 20 and are both single-focus. Image capturing devices 10b, 10c, 10d, and the user interface 24 are all located on the other side of the electronic device 20, and the user interface 24 is a display device, allowing image capturing devices 10b, 10c, and 10d to function as front-facing cameras for selfies; however, this invention is not limited to this. Furthermore, image capturing devices 10a, 10b, 10c, and 10d can all include the image capturing optical system of the present invention and can all have a structural configuration similar to that of image capturing device 10. Specifically, each of image capturing devices 10a, 10b, 10c, and 10d can include an imaging lens, a driving device, an electronic photosensitive element, and an image stabilization module. The imaging lens of each of image capturing devices 10a, 10b, 10c, and 10d can include, for example, an optical lens group (as described in the image capturing optical system of the present invention), a lens barrel for supporting the optical lens group, and a support device.

[0377] Image capturing device 10 is a wide-angle image capturing device, image capturing device 10a is an ultra-wide-angle image capturing device, image capturing device 10b is a wide-angle image capturing device, image capturing device 10c is an ultra-wide-angle image capturing device, and image capturing device 10d is a Time-of-Flight (ToF) image capturing device. In this embodiment, image capturing devices 10 and 10a have different viewing angles, allowing the electronic device 20 to provide different magnifications to achieve optical zoom shooting effects. Furthermore, image capturing device 10d can acquire depth information of the image. The above-described electronic device 20 is exemplified by including multiple image capturing devices 10, 10a, 10b, 10c, and 10d, but the number and configuration of the image capturing devices are not intended to limit the invention.

[0378] When the user photographs the subject 26, the electronic device 20 uses the image capturing device 10 or image capturing device 10a to focus the light, activates the flash module 21 for supplemental lighting, and uses the subject distance information of the subject 26 provided by the focus assist module 22 for fast focusing. In addition, the image signal processor 23 performs image optimization processing to further improve the image quality produced by the image capturing optical system. The focus assist module 22 can use an infrared or laser focus assist system to achieve fast focusing. Furthermore, the electronic device 20 can also use the image capturing devices 10b, 10c, or 10d for shooting. The user interface 24 can be a touch screen, used in conjunction with the diverse functions of the image software processor 25 for image shooting and image processing (or can be shot using a physical shooting button). The image processed by the image software processor 25 can be displayed on the user interface 24.

[0379] <Eleventh Embodiment>

[0380] Please refer to Figure 21 This is a perspective view illustrating one side of an electronic device according to the eleventh embodiment of the present invention.

[0381] In this embodiment, the electronic device 30 is a smartphone. The electronic device 30 includes, according to the ninth embodiment, an image capturing device 10, an image capturing device 10e, an image capturing device 10f, a flash module 31, a focus assist module, an image signal processor, a display device, and an image software processor (not shown). Image capturing devices 10, 10e, and 10f are all disposed on the same side of the electronic device 30, while the display device is disposed on the other side. Furthermore, image capturing devices 10e and 10f can both include the image capturing optical system of the present invention and can both have a similar structural configuration to image capturing device 10, which will not be described in detail here.

[0382] Image capturing device 10 is a wide-angle image capturing device, image capturing device 10e is a telephoto image capturing device, and image capturing device 10f is an ultra-wide-angle image capturing device. In this embodiment, image capturing devices 10, 10e, and 10f have different viewing angles, allowing the electronic device 30 to provide different magnifications to achieve optical zoom shooting effects. Furthermore, image capturing device 10e is a telephoto image capturing device with an optical path deflection element configuration, so that the total length of image capturing device 10e is not limited by the thickness of the electronic device 30. The optical path deflection element configuration of image capturing device 10e can, for example, have a similar... Figures 24 to 26 The structure can be referred to the aforementioned corresponding structure. Figures 24 to 26The description of the above-described electronic device 30, which includes multiple image capturing devices 10, 10e, and 10f, is not intended to limit the invention. When a user photographs a subject, the electronic device 30 uses image capturing device 10, image capturing device 10e, or image capturing device 10f to focus the light and capture the image, activates the flash module 31 for supplementary lighting, and performs subsequent processing in a manner similar to the aforementioned embodiments, which will not be described in detail here.

[0383] <Twelfth Embodiment>

[0384] Please refer to Figure 22 This is a perspective view illustrating one side of an electronic device according to the twelfth embodiment of the present invention.

[0385] In this embodiment, the electronic device 40 is a smartphone. The electronic device 40 includes, according to the ninth embodiment, image capturing devices 10g, 10h, 10i, 10j, 10k, 10m, 10n, and 10p, a flash module 41, a focus assist module, an image signal processor, a display device, and an image software processor (not shown). Image capturing devices 10g, 10h, 10i, 10j, 10k, 10m, 10n, and 10p are all located on the same side of the electronic device 40, while the display device is located on the other side of the electronic device 40. Furthermore, the image capturing devices 10g, 10h, 10i, 10j, 10k, 10m, 10n, and 10p can all include the image capturing optical system of the present invention and can all have a structural configuration similar to that of the image capturing device 10, which will not be described in detail here.

[0386] Image capturing device 10 is a wide-angle image capturing device, image capturing device 10g is a telephoto image capturing device, image capturing device 10h is a telephoto image capturing device, image capturing device 10i is a wide-angle image capturing device, image capturing device 10j is an ultra-wide-angle image capturing device, image capturing device 10k is an ultra-wide-angle image capturing device, image capturing device 10m is a telephoto image capturing device, image capturing device 10n is a telephoto image capturing device, and image capturing device 10p is a time-of-flight ranging image capturing device. In this embodiment, image capturing devices 10, 10g, 10h, 10i, 10j, 10k, 10m, and 10n have different viewing angles, allowing the electronic device 40 to provide different magnifications to achieve optical zoom shooting effects. Furthermore, image capturing devices 10g and 10h can be telephoto image capturing devices configured with optical path deflection elements. The optical path deflection elements of the imaging device 10g and the imaging device 10h may be configured, for example, to have similar characteristics. Figures 24 to 26 The structure can be referred to the aforementioned corresponding structure. Figures 24 to 26 The description of the image acquisition device 10p will not be repeated here. Additionally, the image acquisition device 10p can acquire depth information of the image. The electronic device 40 described above is exemplified by including multiple image acquisition devices 10, 10g, 10h, 10i, 10j, 10k, 10m, 10n, and 10p, but the number and configuration of the image acquisition devices are not intended to limit the invention. When a user photographs a subject, the electronic device 40 uses image acquisition devices 10, 10g, 10h, 10i, 10j, 10k, 10m, 10n, or 10p to focus light and acquire an image, activates the flash module 41 for supplemental lighting, and performs subsequent processing in a manner similar to the aforementioned embodiments, which will not be repeated here.

[0387] The image capturing device 10 of the present invention is not limited to application in smartphones. The image capturing device 10 can also be applied to mobile focusing systems as needed, and features excellent aberration correction and good image quality. For example, the image capturing device 10 can be widely used in electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring equipment, dashcams, reversing cameras, multi-lens devices, recognition systems, motion-sensing game consoles, and wearable devices. The aforementioned electronic devices are merely illustrative examples of practical applications of the present invention and are not intended to limit the scope of application of the image capturing device of the present invention.

[0388] Although the present invention has been disclosed above with reference to the preferred embodiments described above, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the claims appended to this specification.

Claims

1. An image capturing optical system, characterized in that, It comprises ten lenses, which are arranged sequentially from the object side to the image side along the optical path as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens, and each of the ten lenses has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has positive refractive power, the image-side surface of the second lens is concave near the optical axis, the tenth lens has negative refractive power, and at least one of the object-side surface and the image-side surface of at least one lens in the image capturing optical system has at least one critical point off-axis. Wherein, the distance on the optical axis from the object-side surface of the first lens to an imaging plane is TL; the maximum imaging height of the image capturing optical system is ImgH; the optical axis spacing between the first lens and the second lens is T12; the optical axis spacing between the second lens and the third lens is T23; the optical axis spacing between the third lens and the fourth lens is T34; the optical axis spacing between the fourth lens and the fifth lens is T45; the optical axis spacing between the fifth lens and the sixth lens is T56; the optical axis distance from the object-side surface of the first lens to the image-side surface of the sixth lens is Dr1r12; and the optical axis spacing between the second lens and the third lens is T23, which satisfies the following conditions: 0.50 < TL / ImgH < 4.0; 0 < (T12+T34+T45+T56) / T23 < 3.5; and 3.50 < Dr1r12 / T23 < 16.

0.

2. The image capturing optical system according to claim 1, characterized in that, The distance from the object-side surface of the first lens to the imaging plane on the optical axis is TL; the maximum imaging height of the image capturing optical system is ImgH; the optical axis spacing between the first lens and the second lens is T12; the optical axis spacing between the second lens and the third lens is T23; the optical axis spacing between the third lens and the fourth lens is T34; the optical axis spacing between the fourth lens and the fifth lens is T45; and the optical axis spacing between the fifth lens and the sixth lens is T56. These conditions must be met. 0.70 < TL / ImgH < 1.8; and 0.10 < (T12+T34+T45+T56) / T23 < 2.

5.

3. The image capturing optical system according to claim 1, characterized in that, The Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the fourth lens is V4, the Abbe number of the fifth lens is V5, the Abbe number of the sixth lens is V6, the Abbe number of the seventh lens is V7, the Abbe number of the eighth lens is V8, the Abbe number of the ninth lens is V9, the Abbe number of the tenth lens is V10, and the Abbe number of the i-th lens is Vi. The refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the fourth lens is N4, the refractive index of the fifth lens is N5, the refractive index of the sixth lens is N6, the refractive index of the seventh lens is N7, the refractive index of the eighth lens is N8, the refractive index of the ninth lens is N9, the refractive index of the tenth lens is N10, and the refractive index of the i-th lens is Ni. The minimum value of Vi / Ni is (Vi / Ni)min, which satisfies the following condition: 8.00 < (Vi / Ni)min < 11.0, where i = 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

4. The image capturing optical system according to claim 1, characterized in that, The sum of the optical axis spacing between all adjacent lenses in the image capturing optical system is ΣAT, and the optical axis spacing between the sixth lens and the seventh lens is T67, which satisfies the following condition: 3.00 < ΣAT / T67 < 15.

0.

5. The image capturing optical system according to claim 1, characterized in that, The thickness of the second lens along the optical axis is CT2, the thickness of the third lens along the optical axis is CT3, and the distance between the second lens and the third lens along the optical axis is T23, which satisfies the following condition: 0.55 < (CT2+CT3) / T23 < 1.

8.

6. The image capturing optical system according to claim 1, characterized in that, The object-side surface of the first lens is convex near the optical axis; Wherein, the radius of curvature of the object-side surface of the first lens is R1, and the thickness of the first lens along the optical axis is CT1, which satisfies the following conditions: 1.2 < R1 / CT1 < 7.0; Wherein, the perpendicular distance between the convex critical point of the image-side surface of the ninth lens and the optical axis is Yc92, the maximum effective radius of the image-side surface of the ninth lens is Y92, and the image-side surface of the ninth lens has at least one convex critical point off-axis satisfying the following conditions: 0.25 < Yc92 / Y92 < 0.

70.

7. The image capturing optical system according to claim 1, characterized in that, The object-side surface of the eighth lens is convex near the optical axis, and the image-side surface of the ninth lens is concave near the optical axis. Wherein, the Abbe number of the third lens is V3, the focal length of the image capturing optical system is f, and the focal length of the third lens is f3, which satisfies the following conditions: |V3×f / f3| < 8.

0.

8. The image capturing optical system according to claim 1, characterized in that, At least five lenses in the image capturing optical system are made of plastic. Wherein, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the focal length of the image capturing optical system is f, the maximum imaging height of the image capturing optical system is ImgH, and the entrance pupil diameter of the image capturing optical system is EPD, which satisfies the following conditions: 1.00 < (TL×f) / (ImgH×EPD) < 3.

00.

9. The image capturing optical system according to claim 1, characterized in that, In the image capturing optical system, at least three lenses each have at least one inflection point on at least one of their object-side surface and their image-side surface; Wherein, the focal length of the image capturing optical system is f, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the seventh lens is f7, the focal length of the eighth lens is f8, the focal length of the ninth lens is f9, and the focal length of the i-th lens is fi, which satisfies the following conditions: Σ|f / fi| < 4.0, where i = 2, 3, 4, 5, 6, 7, 8 and 9.

10. An image capturing device, characterized in that, Include: The image capturing optical system according to claim 1; and An electronic photosensitive element is disposed on the imaging surface of the image capturing optical system.

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

12. An image capturing optical system, characterized in that, It comprises ten lenses, which are arranged sequentially from the object side to the image side along the optical path as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens, and each of the ten lenses has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has positive refractive power, the image-side surface of the second lens is concave near the optical axis, the tenth lens has negative refractive power, and at least one of the object-side surface and the image-side surface of at least one lens in the image capturing optical system has at least one critical point off-axis. Wherein, the distance on the optical axis from the object-side surface of the first lens to an imaging plane is TL, the maximum imaging height of the image capturing optical system is ImgH, the optical axis spacing between the fourth lens and the fifth lens is T45, and the optical axis spacing between the sixth lens and the seventh lens is T67, which satisfies the following conditions: 0.50 < TL / ImgH < 4.0; and 1.40 < T67 / T45.

13. The image capturing optical system according to claim 12, characterized in that, The distance from the object-side surface of the first lens to the imaging plane on the optical axis is TL, the maximum imaging height of the image capturing optical system is ImgH, the optical axis spacing between the fourth lens and the fifth lens is T45, and the optical axis spacing between the sixth lens and the seventh lens is T67, which satisfies the following conditions: 0.70 < TL / ImgH < 1.8; and 2.00 < T67 / T45 < 70.

0.

14. The image capturing optical system according to claim 12, characterized in that, The minimum Abbe number among all lenses in the image capturing optical system is Vmin, which satisfies the following condition: 12.0 < Vmin < 18.

5.

15. The image capturing optical system according to claim 12, characterized in that, The distance on the optical axis from the object-side surface of the first lens to the image-side surface of the second lens is Dr1r4, the distance on the optical axis from the object-side surface of the third lens to the image-side surface of the sixth lens is Dr5r12, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the sixth lens is Dr1r12, and the distance on the optical axis from the object-side surface of the seventh lens to the image-side surface of the tenth lens is Dr13r20, which satisfies the following condition: 0.60 < Dr1r4 / Dr5r12 < 1.5; and 0.60 < Dr1r12 / Dr13r20 < 1.

3.

16. The image capturing optical system according to claim 12, characterized in that, The distance on the optical axis from the object-side surface of the first lens to the image-side surface of the tenth lens is TD, and the distance on the optical axis between the second lens and the third lens is T23, which satisfies the following conditions: 8.00 < TD / T23 < 30.

0.

17. The image capturing optical system according to claim 12, characterized in that, The focal length of the image capturing optical system is f, the radius of curvature of the image-side surface of the second lens is R4, and half of the maximum field of view in the image capturing optical system is HFOV, which satisfies the following conditions: 0.55 < f / R4 < 2.5; and 30.0 degrees < HFOV < 60.0 degrees; Wherein, the perpendicular distance between the concave critical point of the object-side surface of the ninth lens and the optical axis is Yc91, the maximum effective radius of the object-side surface of the ninth lens is Y91, and the object-side surface of the ninth lens has at least one concave critical point off-axis satisfying the following conditions: 0.20 < Yc91 / Y91 < 0.

70.

18. The image capturing optical system according to claim 12, characterized in that, The image capturing optical system has a focal length of f, with the first lens having a focal length of f1, the second lens having a focal length of f2, the third lens having a focal length of f3, the fourth lens having a focal length of f4, the fifth lens having a focal length of f5, the sixth lens having a focal length of f6, the seventh lens having a focal length of f7, the eighth lens having a focal length of f8, the ninth lens having a focal length of f9, and the tenth lens having a focal length of f10, satisfying the following conditions: 0.45 < f / f1 < 1.6; |f / f2| < 1.0; |f / f3| < 1.0; |f / f4| < 1.0; |f / f5| < 1.0; |f / f6| < 1.0; |f / f7| < 1.0; |f / f8| < 1.0; |f / f9| < 1.0; and -1.5 < f / f10 < -0.40.

Images