Imaging lens assembly, camera module, and imaging apparatus

Abstract

An imaging lens assembly (21) includes, in order from an object side, a first lens (L1) having a positive refractive power and having a convex surface facing the object side, a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5) having a positive refractive power, a sixth lens (L6), a seventh lens (L7), and an eighth lens (L8) having a negative refractive power and having a concave shape near an optical axis on a surface of the object side; and an aperture (3) disposed closer to the object with respect to at least one of the first to eighth lenses (L1, L2, L3, L4, L5, L6, L7, L8), in which at least one of the lenses, which is disposed closer to the image than the aperture (3), has a non-rotationally symmetric aspheric surface, and the imaging lens assembly (21) is configured to satisfy: Fnot; 2.2, HFOVlt (HFOVt); 45 DEG, vd1gt; 45, vd6lt; 40, vd1 to vd2 gt; 10.

Description

Technical Field

[0001] The present disclosure relates to an imaging lens assembly, a camera module and an imaging device, and in particular to an imaging lens assembly, a camera module and an imaging device which are small in size and have good optical performance. Background Art

[0002] In recent years, portable imaging devices such as mobile phones and digital cameras are becoming widely used. With the miniaturization of imaging devices in recent years, the imaging lens assembly mounted on such imaging devices also needs to be reduced in size. In addition, there is an increasing demand to increase the amount of information of imaging data and to create a sense of shooting space and atmosphere by expanding the angle of view when taking pictures such as snapshots. In addition, there is also an increasing demand to improve image quality by using larger image sensors.

[0003] In order to meet these demands, wide-angle lenses corresponding to high image quality need to be installed in small digital devices such as mobile phones or action cameras.

[0004] However, with conventional wide-angle lenses, it is difficult to shorten the overall length of the imaging lens assembly while correcting aberrations.

[0005] Therefore, from the perspective of miniaturization, there is a need to improve conventional imaging lens assemblies. Summary of the invention

[0006] The present disclosure aims to solve at least one of the above technical problems. Therefore, the present disclosure needs to provide an imaging lens, a camera module and an imaging device.

[0007] According to the present disclosure, an imaging lens assembly includes, from the object side, the following:

[0008] A first lens having positive refractive power and a convex surface facing the object side;

[0009] Second lens;

[0010] The third lens;

[0011] The fourth lens;

[0012] a fifth lens having positive refractive power;

[0013] The sixth lens;

[0014] a seventh lens; and

[0015] an eighth lens having negative refractive power and being concave near the optical axis on the object side surface;

[0016] The imaging lens assembly includes an aperture stop. The aperture stop is arranged closer to the object than at least one of the first lens to the eighth lens.

[0017] Wherein, at least one of the lenses arranged closer to the image than the aperture stop has a non-rotationally symmetric aspherical surface, and the imaging lens assembly is configured to satisfy:

[0018] Fno<2.2,

[0019] HFOV<45°,

[0020] νd1>45,

[0021] νd6<40,

[0022] νd1-νd2>10,

[0023] Wherein, Fno is the F number of the imaging lens assembly, HFOV is the half viewing angle of the imaging lens assembly corresponding to the diagonal length of the effective pixel area of ​​the imaging surface, νd1 is the Abbe number of the first lens, νd2 is the Abbe number of the second lens, and νd6 is the Abbe number of the sixth lens.

[0024] According to the present disclosure, a camera module includes:

[0025] an imaging lens assembly; and

[0026] An image sensor includes an imaging surface.

[0027] According to the present disclosure, an imaging device includes a camera module and a housing accommodating the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] These and / or other aspects and advantages of the embodiments of the present disclosure will become apparent and more readily understood from the following description with reference to the accompanying drawings. In the accompanying drawings:

[0029] Figure 1 is a schematic diagram showing a schematic configuration of an imaging device according to the present disclosure;

[0030] Figure 2 is a configuration diagram of a camera module according to a first example of the present disclosure;

[0031] Figure 3 is an aberration diagram of a camera module according to a first example of the present disclosure;

[0032] Figure 4 is a graph of the RMS aperture radius of a camera module according to a first example of the present disclosure;

[0033] Figure 5 is a configuration diagram of a camera module according to a second example of the present disclosure;

[0034] Figure 6is an aberration diagram of a camera module according to a second example of the present disclosure;

[0035] Figure 7 is a graph of the RMS aperture radius of a camera module according to a second example of the present disclosure;

[0036] Figure 8 is a configuration diagram of a camera module according to a third example of the present disclosure;

[0037] Fig. 9 is an aberration diagram of a camera module according to a third example of the present disclosure;

[0038] Fig.10 is a graph of the RMS aperture radius of a camera module according to a third example of the present disclosure;

[0039] Fig.11 is a configuration diagram of a camera module according to a fourth example of the present disclosure;

[0040] Fig.12 is an aberration diagram of a camera module according to a fourth example of the present disclosure;

[0041] Fig.13 is a graph of the RMS aperture radius of a camera module according to a fourth example of the present disclosure;

[0042] Fig.14 is a configuration diagram of a camera module according to a fifth example of the present disclosure;

[0043] Fig.15 is an aberration diagram of a camera module according to a fifth example of the present disclosure;

[0044] Fig.16 is a graph of the RMS aperture radius of a camera module according to a fifth example of the present disclosure;

[0045] Fig.17 is a configuration diagram of a camera module according to a sixth example of the present disclosure;

[0046] Fig.18 is an aberration diagram of a camera module according to a sixth example of the present disclosure;

[0047] Fig.19 is a graph of an RMS aperture radius of a camera module according to a sixth example of the present disclosure;

[0048] Fig. 20 is a configuration diagram of a camera module according to a seventh example of the present disclosure;

[0049] Fig.21 is an aberration diagram of a camera module according to a seventh example of the present disclosure;

[0050] Fig. 22 is a graph of an RMS aperture radius of a camera module according to a seventh example of the present disclosure;

[0051] Fig.23 is a configuration diagram of a camera module according to an eighth example of the present disclosure;

[0052] Fig.24 is an aberration diagram of a camera module according to an eighth example of the present disclosure;

[0053] Fig.25 is a graph of an RMS aperture radius of a camera module according to an eighth example of the present disclosure;

[0054] Fig.26 is a configuration diagram of a camera module according to a ninth example of the present disclosure;

[0055] Fig. 27 is an aberration diagram of a camera module according to a ninth example of the present disclosure;

[0056] Fig.28 is a graph of an RMS aperture radius of a camera module according to a ninth example of the present disclosure;

[0057] Fig.29 is a configuration diagram of a camera module according to a tenth example of the present disclosure;

[0058] Fig.30 is an aberration diagram of a camera module according to a tenth example of the present disclosure;

[0059] Fig.31 is a graph of an RMS aperture radius of a camera module according to a tenth example of the present disclosure;

[0060] Fig.32 is a configuration diagram of a camera module according to an eleventh example of the present disclosure;

[0061] Fig.33 is an aberration diagram of a camera module according to an eleventh example of the present disclosure;

[0062] Fig.34 is an RMS aperture radius diagram of a camera module according to an eleventh example of the present disclosure;

[0063] Fig.35 is a configuration diagram of a camera module according to a twelfth example of the present disclosure;

[0064] Fig.36 is an aberration diagram of a camera module according to a twelfth example of the present disclosure;

[0065] Fig.37is an RMS aperture radius diagram of a camera module according to a twelfth example of the present disclosure;

[0066] Fig.38 is a configuration diagram of a camera module according to a thirteenth example of the present disclosure;

[0067] Fig.39 is an aberration diagram of a camera module according to a thirteenth example of the present disclosure;

[0068] Fig.40 is an RMS aperture radius diagram of a camera module according to a thirteenth example of the present disclosure;

[0069] Fig.41 is a configuration diagram of a camera module according to a fourteenth example of the present disclosure;

[0070] Fig.42 is an aberration diagram of a camera module according to a fourteenth example of the present disclosure;

[0071] Fig.43 is an RMS aperture radius diagram of a camera module according to a fourteenth example of the present disclosure;

[0072] Fig.44 is a configuration diagram of a camera module according to a fifteenth example of the present disclosure;

[0073] Fig.45 is an aberration diagram of a camera module according to a fifteenth example of the present disclosure;

[0074] Fig.46 is an RMS aperture radius diagram of a camera module according to a fifteenth example of the present disclosure; DETAILED DESCRIPTION

[0075] Embodiments of the present disclosure will be described in detail, and examples of these embodiments will be shown in the accompanying drawings. The same or similar elements and elements with the same or similar functions are represented by the same reference numerals throughout the specification. The embodiments described herein with reference to the accompanying drawings are illustrative and are intended to illustrate the present disclosure, but should not be construed as limiting the present disclosure.

[0076] <Overview of the present disclosure>

[0077] First, the outline of the present disclosure will be described. For example, an imaging device 1 to which the present disclosure is applied is configured as follows Figure 1 Note that the dotted line represents the optical axis of the imaging device 1 (the same below).

[0078] Figure 1The imaging device 1 shown includes a camera module 11 and a housing 12 that accommodates the camera module 11. The camera module 11 includes an imaging lens assembly 21, a filter 22, and an image sensor 23.

[0079] The imaging lens assembly 21 includes, for example, eight lenses and an aperture stop 3. The eight lenses are composed of a first lens to an eighth lens arranged in sequence from the object side. The aperture stop 3 is arranged closer to the object than the image side surface of the first lens. The imaging lens assembly 21 images the incident light from the object side on the imaging surface S. The imaging lens assembly 21 is, for example, a wide-angle lens with an angle less than 90 degrees. For example, the eight lenses are held in a lens barrel and are configured to be able to move in the optical axis direction (by using an autofocus device (for example, a stepping motor or a voice coil motor)). Figure 1 Z direction) as a whole. Since the imaging lens assembly 21 includes eight lenses, the imaging lens assembly 21 can effectively apply a large-size image sensor 23. By effectively applying the large-size image sensor 23, the image quality of the captured image can be improved. Since the imaging lens assembly 21 includes eight lenses, the imaging lens assembly 21 can effectively correct aberrations. Since the aperture stop 3 is closer to the object than the image-side surface of the first lens, the aperture diameter of the imaging lens assembly 21 can be enlarged while shortening the total length of the imaging lens assembly 21. By enlarging the aperture diameter, the object light can be efficiently captured and a bright image can be obtained. Since the imaging lens assembly 21 has a wide-angle lens whose viewing angle is smaller than an ultra-wide-angle lens whose viewing angle is greater than or equal to 90 degrees, the total length of the imaging lens assembly 21 can be shortened while installing a large-size image sensor 23. The first lens can be made of glass or plastic to enlarge the aperture diameter.

[0080] The image sensor 23 is composed of a solid-state image sensor such as a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device), and has an imaging surface S which is an imaging surface of the imaging lens 21. The image sensor 23 is mounted on a circuit board 24.

[0081] The image sensor 23 receives incident light from a subject (object side) through the imaging lens assembly 21 and the filter 22, photoelectrically converts the incident light, and outputs image data obtained by photoelectrically converting the incident light to a subsequent stage.

[0082] The filter 22 is disposed between the imaging lens assembly 21 and the image sensor 23. The filter 22 may be, for example, an infrared cut filter (IRCF) that cuts off infrared light from light incident from the imaging lens assembly 21.

[0083] In the imaging lens assembly 21, the first lens has positive refractive power and a convex surface facing the object side, the fifth lens has positive refractive power, and the eighth lens has negative refractive power and is concave near the optical axis on the object side surface. The imaging lens assembly 21 can further effectively correct aberrations by having such a combination of refractive powers.

[0084] In the imaging lens assembly 21, at least one lens disposed closer to the image than the aperture stop 3 has a non-rotationally symmetric aspherical surface. With the non-rotationally symmetric aspherical surface closer to the image than the aperture stop 3, the imaging lens assembly 21 can smoothly correct aberrations (e.g., distortion, astigmatism, and curvature, etc.) generated by shortening the total length of the imaging lens assembly. In other words, with the non-rotationally symmetric aspherical surface closer to the image than the aperture stop 3, the imaging lens assembly 21 can shorten the total length of the imaging lens assembly 21 while effectively correcting aberrations.

[0085] Non-rotationally symmetric aspheric surfaces can be symmetrical about the X-axis orthogonal to the optical axis (refer to Figure 1 ) and the Y axis (reference Figure 1 ). The X-axis is, for example, an axis parallel to the long side of the image sensor 23. The Y-axis is, for example, an axis parallel to the short side of the image sensor 23. Since the non-rotationally symmetric aspherical surface is symmetric with respect to the X-axis and the Y-axis, respectively, the design of the aspherical surface applicable to the pixel area of ​​the image sensor 23 can be simplified. This makes it easier to adjust the eccentricity between the surfaces during lens manufacturing or to adjust the optical performance by rotating the lens during lens assembly.

[0086] The eighth lens disposed closest to the imaging surface S may have an aspherical shape with an inflection point. If the eighth lens has an aspherical shape with an inflection point, the back focal length of the imaging lens assembly 21 may be shortened. By shortening the back focal length, the overall length of the imaging lens assembly 21 may be shortened. In order to shorten the back focal length, it is preferred that the image-side surface of the eighth lens has an aspherical shape with an inflection point.

[0087] In consideration of lens molding, it is preferred that the aspheric lens constituting the imaging lens assembly 21, especially the lens having an aspheric shape with an inflection point, is made of a plastic material. In addition, among the lenses constituting the imaging lens assembly 21, the lens having a size less than or equal to a specific size may be a lens made of a plastic material, and the lens having a size greater than a specific size may be a lens made of a glass material. This is because it is difficult to make an aspheric lens or a relatively small lens using materials other than plastic.

[0088] By satisfying the following inequalities (1) to (5), the camera module 11 can enhance the optical performance while maintaining a small size structure:

[0089] Fno<2.2 (1)

[0090] HFOV<45° (2)

[0091] νd1>45 (3)

[0092] νd6<40 (4)

[0093] νd1-νd2>10 (5)

[0094] Wherein, Fno is the F number of the imaging lens assembly 21 (the same below). HFOV is the half viewing angle (i.e., half diagonal viewing angle) of the imaging lens assembly 21 (the same below). The viewing angle corresponds to the diagonal length of the effective pixel area of ​​the imaging surface S (the same below). νd1 is the Abbe number of the first lens (the same below). νd2 is the Abbe number of the second lens (the same below). νd6 is the Abbe number of the sixth lens (the same below).

[0095] If the value of Fno is greater than or equal to 2.2 as shown in inequality (1), the image becomes darker due to the reduced intensity of light irradiated on the imaging surface S, so the image quality is poor when shooting in a dark place. In order to improve the image quality, Fno is more preferably less than or equal to 2.0.

[0096] If the value of HFOV is greater than or equal to 45 degrees shown in inequality (2), the focal length is short (specifically, less than 22 mm) and the viewing angle is wide. In this case, it is necessary to set a structure in which, for example, a lens having a negative refractive power and closest to the object is used as a lens. The imaging lens assembly 21 having such a structure is difficult to shorten the total length of the imaging lens assembly 21 while installing a large-size image sensor 23.

[0097] If the value of νd1 is less than or equal to 45 as shown in inequality (3), correction of axial chromatic aberration is insufficient, and thus it is difficult to obtain good optical performance. The value of νd1 is more preferably 50 or more.

[0098] If the value of νd6 is greater than or equal to 40 as shown in inequality (4), correction of axial chromatic aberration is insufficient, and thus it is difficult to obtain good optical performance. The value of νd6 is more preferably less than or equal to 35 to correct total chromatic aberration.

[0099] If the value of νd1-νd2 is less than or equal to 10 as shown in inequality (5), the axial chromatic aberration correction performed by the first lens and the second lens is insufficient, thereby causing the optical performance to deteriorate and the image quality to decrease. In order to improve the image quality, the value of νd1-νd2 is more preferably greater than or equal to 13.

[0100] By satisfying the following inequalities (6) to (8), the camera module 11 can more effectively miniaturize the imaging lens assembly 21 and improve the optical performance and manufacturability:

[0101] 0.3 <F1 / FL<4.3 (6)

[0102] 0.5<|F8 / FL|<1.1 (7)

[0103] 0.8 <F L1-L5 / FL<1.4 (8)

[0104] Wherein, FL is the focal length of the imaging lens assembly (the same below). F1 is the focal length of the first lens (the same below). F8 is the focal length of the eighth lens (the same below). L1-L5 It is the combined focal length of the first to fifth lenses (the same below).

[0105] If the value of F1 / FL is less than or equal to 0.3 as shown in inequality (6), high-order aberrations are generated due to the large refractive power of the first lens and the large curvature of the lens surface of the first lens, and the manufacturing sensitivity is increased accordingly, so the yield rate decreases. On the other hand, if the value of F1 / FL is greater than or equal to 4.3 as shown in inequality (6), it is difficult to obtain a bright image due to insufficient focusing of the imaging lens assembly 21. In order to maintain a balance between optical performance, manufacturability and image brightness (i.e., lens aperture), the value of F1 / FL is more preferably greater than or equal to about 0.8 and less than or equal to 3.9.

[0106] If the value of |F8 / FL| is less than or equal to 0.5 indicated in inequality (7), the focal length and the total length of the imaging lens assembly 21 are long due to the excessive negative refractive power of the eighth lens. On the other hand, if the value of |F8 / FL| is greater than or equal to 1.1 as shown in inequality (7), it is difficult to obtain a sufficient flange back due to the small negative refractive power of the eighth lens. In order to maintain a balance between the total length and the flange back of the imaging lens assembly 21, the value of |F8 / FL| is more preferably greater than or equal to about 0.6 and less than or equal to 1.0.

[0107] If F L1-L5 If the value of / FL is less than or equal to 0.8 as shown in inequality (8), the positive refractive power of the lens on the object side is too large, which increases the manufacturing sensitivity and reduces the yield. L1-L5 If the value of / FL is greater than or equal to 1.4 as shown in inequality (8), it is difficult to correct spherical aberration and axial chromatic aberration due to the small positive refractive power of the lens on the object side. In order to maintain a balance between manufacturability and optical performance, F L1-L5The value of / FL is more preferably approximately greater than or equal to 0.9 and less than or equal to 1.3.

[0108] By satisfying the following inequalities (9) and (10), the camera module 11 can more effectively miniaturize the imaging lens assembly 21 and improve optical performance and manufacturability.

[0109] 0.5<|F L6-L8 / F L1-L5 |<3.9 (9)

[0110] 2.5<Σ|FL / F(i)|<5.0 (10)

[0111] Among them, F L6-L8 is the combined focal length of the sixth to eighth lenses (the same below). F(i) is the focal length of the i-th lens (i is an integer between 1 and 8) (the same below).

[0112] If |F L6-L8 / F L1-L5 If the value of | is less than or equal to 0.5 as shown in inequality (9), the negative refractive power of the lens on the image side is too large, resulting in excessive correction of aberrations, making it difficult to obtain good optical performance. On the other hand, if |F L6-L8 / F L1-L5 If the value of | is greater than or equal to 3.9 as shown in inequality (9), the positive refractive power of the object-side lens is too large, resulting in insufficient correction of aberrations, making it difficult to obtain good optical performance. L6-L8 / F L1-L5 The value of | is more preferably greater than or equal to 1.0 and less than or equal to 3.3.

[0113] If the value of Σ|FL / F(i)| is less than or equal to 2.5 shown in inequality (10), it is difficult to sufficiently correct aberrations due to the small refractive power of each lens, and the total length of the imaging lens assembly 21 is long. On the other hand, if the value of Σ|FL / F(i)| is greater than or equal to 5.0 shown in inequality (10), the manufacturing sensitivity of the imaging lens 21 increases due to the excessive refractive power of each lens, thereby reducing the yield. In order to maintain a balance between miniaturization, optical performance, and manufacturability of the imaging lens assembly 21, the value of Σ|FL / F(i)| is more preferably greater than or equal to about 3.0 and less than or equal to 4.5.

[0114] By satisfying the following inequalities (11) and (12), the camera module 11 can more effectively miniaturize the imaging lens assembly 21 and improve the optical performance.

[0115] 0.4 <D L6-L8 / ImgH<1.0 (11)

[0116] 5 <TTL / D L6 <28 (12)

[0117] Among them, D L6-L8 is the length from the object side surface of the sixth lens to the image side surface of the eighth lens on the optical axis (the same below). ImgH is half the diagonal length of the effective pixel area of ​​the imaging surface S of the imaging lens assembly 21 (i.e., image height) (the same below). TTL (Total Track Length) is the length from the object side surface of the first lens to the focus of the imaging lens assembly 21 on the optical axis (the same below). D L6 It is the length from the object side surface to the image side surface of the sixth lens on the optical axis, that is, the central thickness of the sixth lens (the same below).

[0118] If D L6-L8 If the value of / ImgH is less than or equal to 0.4 as shown in inequality (11), it is difficult to correct aberrations due to the steep angle of the screen edge light incident on the image side lens, and the lens transmittance is also reduced due to Fresnel reflection. On the other hand, if D L6-L8 If the value of / ImgH is greater than or equal to 1.0 as shown in inequality (11), it is difficult to shorten the total length of the imaging lens assembly 21 due to the large thickness of the lens on the image side. In order to maintain a balance between shortening the total length of the imaging lens assembly 21 and optical performance, D L6-L8 The value of / ImgH is more preferably greater than or equal to 0.5 and less than or equal to 0.9.

[0119] If TTL / D L6 If the value of is less than or equal to 5 shown in inequality (12), or greater than or equal to 28, the balance of aberrations in the edge area of ​​the screen (for example, the balance between comatic aberration and astigmatism) is lost, and it is difficult to correct aberrations. In order to maintain the balance of optical performance, TTL / D L6 The value of is more preferably about 9 or more and 24 or less.

[0120] By satisfying the following inequalities (13) and (14), the camera module 11 can more effectively miniaturize the imaging lens assembly 21 and improve the optical performance.

[0121] 0<(R3+R4) / (R3-R4)<10.0 (13)

[0122] 0<(R9+R10) / (R9-R10)<3.5 (14)

[0123] Wherein, R3 is the curvature radius of the object side surface of the second lens (the same below). R4 is the curvature radius of the image side surface of the second lens (the same below). R9 is the curvature radius of the object side surface of the fifth lens (the same below). R10 is the curvature radius of the image side surface of the fifth lens (the same below).

[0124] If the value of (R3+R4) / (R3-R4) is less than or equal to 0 as shown in inequality (13), the refractive power of the image side surface of the second lens is too small compared to the refractive power of the object side surface of the second lens. This makes it difficult to fully refract light in the positive direction of the Y axis, so the aberration is insufficiently corrected and the total length of the imaging lens assembly 21 is increased. On the other hand, if the value of (R3+R4) / (R3-R4) is greater than or equal to 10.0 as shown in inequality (13), the surface curvatures of the object side and image side of the second lens are small, and the shape of the object side surface of the second lens is close to the shape of the image side surface of the second lens. This makes it difficult to fully correct aberrations using the second lens. In order to miniaturize the imaging lens assembly 21 and improve optical performance, the value of (R3+R4) / (R3-R4) is more preferably greater than or equal to 1.5 and less than or equal to 9.0.

[0125] If the value of (R9+R10) / (R9-R10) is less than or equal to 0 as shown in inequality (14), the refractive power of the image-side surface of the fifth lens is too small compared to the refractive power of the object-side surface of the fifth lens. This makes it difficult to fully converge the light at the edge of the screen, making it difficult to fully correct aberrations. On the other hand, if the value of (R9+R10) / (R9-R10) is greater than or equal to 3.5 as shown in inequality (14), the fifth lens does not focus light sufficiently due to the small surface curvatures of the object side and image side of the fifth lens. In order to improve optical performance, the value of (R9+R10) / (R9-R10) is more preferably approximately greater than or equal to 0.5 and less than or equal to 2.5.

[0126] By satisfying the following inequalities (15) to (17), the camera module 11 can more effectively miniaturize the imaging lens assembly 21 and improve the optical performance.

[0127] -16<(R7+R8) / (R7-R8)<2 (15)

[0128] -10<(R11+R12) / (R11-R12)<0 (16)

[0129] 0 <R13 / R14<4.0 (17)

[0130] Wherein, R7 is the radius of curvature of the object side surface of the fourth lens (the same below). R8 is the radius of curvature of the image side surface of the fourth lens (the same below). R11 is the radius of curvature of the object side surface of the sixth lens (the same below). R12 is the radius of curvature of the image side surface of the sixth lens (the same below). R13 is the radius of curvature of the object side surface of the seventh lens (the same below). R14 is the radius of curvature of the image side surface of the seventh lens (the same below).

[0131] If the value of (R7+R8) / (R7-R8) is greater than or equal to 2 as shown in inequality (15), the refractive power of the image-side surface of the fourth lens is too large compared to the refractive power of the object-side surface of the fourth lens, so the light at the edge of the screen is insufficiently diverged, making it difficult to fully correct the aberration. On the other hand, if the value of (R7+R8) / (R7-R8) is less than or equal to -16 as shown in inequality (15), the fourth lens cannot fully correct the aberration due to the small surface curvatures of the object side and image side of the fourth lens. In order to improve the optical performance, the value of (R7+R8) / (R7-R8) is more preferably greater than or equal to about -14 and less than or equal to -1.

[0132] If the value of (R11+R12) / (R11-R12) is greater than or equal to 0 as shown in inequality (16), the refractive power of the sixth lens is too large, and the refractive power is affected by the relationship between the object side surface shape of the sixth lens and the image side surface shape of the sixth lens. This makes the angle of light incident on the surface of the object side and image side of the sixth lens steeper, and thus produces high-order aberrations. On the other hand, if the value of (R11+R12) / (R11-R12) is less than or equal to -10 as shown in inequality (16), the light is not fully converged due to the small surface curvature of the object side and image side of the sixth lens. In order to improve optical performance, the value of (R11+R12) / (R11-R12) is more preferably approximately greater than or equal to -8 and less than or equal to -1.

[0133] If the value of R13 / R14 is less than or equal to 0 as shown in inequality (17), the refractive power of the seventh lens is too large, resulting in excessive aberration. On the other hand, if the value of R13 / R14 is less than or equal to 4.0 as shown in inequality (17), the curvature of the object side surface of the seventh lens is small, resulting in insufficient convergence of light. In order to improve optical performance, the value of R13 / R14 is more preferably greater than or equal to 0.5 and less than or equal to 3.0.

[0134] By satisfying the following inequalities (18) to (21), the camera module 11 can more effectively miniaturize the imaging lens assembly 21 and improve the optical performance.

[0135] Nd2<1.75 (18)

[0136] Nd4<1.75 (19)

[0137] Nd6<1.75 (20)

[0138] 200<Σνd(i)<380 (21)

[0139] Wherein, Nd2 is the refractive index of the second lens at the d-line (the same below). Nd4 is the refractive index of the fourth lens at the d-line (the same below). Nd6 is the refractive index of the sixth lens at the d-line (the same below). νd(i) is the Abbe number of the i-th lens (i is an integer between 1 and 8) (the same below).

[0140] If the value of Nd2 is greater than or equal to 1.75 as shown in inequality (18), the thickness of the second lens is thin, which increases the difficulty of manufacturing the second lens, reduces the yield, and causes a large Petzval sum and field curvature. In order to improve manufacturability and optical performance, the value of Nd2 is more preferably less than or equal to 1.73.

[0141] If the value of Nd4 is greater than or equal to 1.75 as shown in inequality (19), the fourth lens is thin, which increases the difficulty of manufacturing the fourth lens and reduces the yield. In order to improve manufacturability, the value of Nd4 is more preferably less than or equal to 1.73.

[0142] If the value of Nd6 is greater than or equal to 1.75 as shown in inequality (20), the difficulty of manufacturing the sixth lens increases and the yield rate decreases due to the thin thickness of the sixth lens. In order to improve manufacturability, the value of Nd6 is more preferably less than or equal to 1.73.

[0143] If the value of Σνd(i) is less than or equal to 200 as shown in inequality (21), or greater than or equal to 380 as shown in inequality (21), it is difficult to sufficiently correct chromatic aberration, and thus it is difficult to obtain good optical performance. In order to improve the optical performance, the value of Σνd(i) is more preferably greater than or equal to about 230 and less than or equal to 340.

[0144] By satisfying the following inequalities (22) to (24), the imaging lens assembly 21 can more effectively miniaturize the imaging lens assembly 21 and improve the optical performance.

[0145] TTL / ImgH<2.5 (22)

[0146] TTL / FL<2.0 (23)

[0147] TTL / BFL<15 (24)

[0148] Here, BFL is the distance from the object side surface of the filter 22 to the imaging surface S, that is, the back focal length (the same below).

[0149] If the value of TTL / ImgH is greater than or equal to 2.5 as shown in inequality (22), it is difficult to miniaturize the imaging lens assembly 21 due to the excessive total length of the imaging lens assembly 21. In order to maintain a balance between miniaturization and optical performance of the imaging lens assembly 21, the value of TTL / ImgH is more preferably less than or equal to 2.0.

[0150] If the value of TTL / FL is greater than or equal to 2.0 as shown in inequality (23), it is difficult to miniaturize the imaging lens assembly 21 because the total length of the imaging lens assembly 21 is too large. In order to miniaturize the imaging lens assembly 21, the value of TTL / FL is more preferably less than or equal to 1.5.

[0151] If the value of TTL / BFL is less than or equal to 15 as shown in inequality (24), the flange distance of the imaging lens assembly 21 is too short, resulting in a short distance between the imaging lens assembly 21 and the image sensor 23, thereby posing a threat of collision and image contamination between the imaging lens assembly 21 and the image sensor 23. In order to prevent collision and image contamination between the imaging lens assembly 21 and the image sensor 23, the value of TTL / BFL is more preferably less than or equal to 14.

[0152] Such a camera module 11 including the imaging lens assembly 21 is suitable for compact digital devices (imaging devices 1 ) such as mobile phones, wearable cameras, and surveillance cameras.

[0153] <Configuration example of camera module>

[0154] Next, a more specific example to which the present disclosure is applied will be described. In the following example, the symbol "Li" indicates the serial number of the i-th lens in the serial number increasing from the object side toward the image side. For example, "L1" indicates the first lens, "LiR1" indicates the object side surface (i.e., the first surface) of the i-th lens, and "LiR2" indicates the image side surface (i.e., the second surface) of the i-th lens.

[0155] "R" indicates the center radius of curvature value (mm). For "R", "E+i" indicates an exponential expression with 10 as the base, i.e. "10 i For example, "1.00E+18" means "1.00×10 18 ”. Such exponential expressions are also applicable to the aspheric coefficients described later.

[0156] “D” indicates a distance value (mm) between the i-th surface and the (i+1)-th surface on the optical axis.

[0157] “Nd” indicates the value of the refractive index of the material of the optical element having the i-th surface at the d-line (wavelength 587.6 nm).

[0158] “νd” indicates the value of the Abbe number of the material of the optical element having the i-th surface at the d-line.

[0159] "Fno" indicates the F number.

[0160] In the table below showing the focal length of each lens, a "-" indicates a negative focal length, and a value without a "-" indicates a positive focal length.

[0161] The imaging lens assembly 21 used in the following example includes a lens having a rotationally symmetric aspherical surface. The rotationally symmetric aspherical shape of the lens is defined by the Qbfs polynomial shown in the following formula (25):

[0162] Z=C×r 2 / {1+[1-(1+K)×C 2 × 2 ] 1 / 2}+{(1-K×C 2 × 2 ) 1 / 2} / {[1-(1+K)×C 2 × 2 ] 1 / 2}×{μ 2 ×(1-μ 2 )×(ΣQBn×Qn(μ 2 ))},

[0163] (n is an even number greater than or equal to 4) (25)

[0165] In formula (25), Z is the depth of the aspheric surface (mm). C is the paraxial curvature equal to 1 / R. r is the distance from the optical axis to the lens surface (X 2 +Y 2 ) 1 / 2 (mm). μ is the value of (distance from optical axis to lens surface / normalized radius of lens). K is the eccentricity (second-order aspheric coefficient), i.e., the cone coefficient. QBn is the n-th order Qbfs coefficient. Qn is the n-th order coefficient specific to the Qbfs polynomial.

[0166] It is known that Qn in Formula 25 is a coefficient taking the value shown below (partial excerpt).

[0167] Q1=1

[0168] Q2=1 / 191 / 2*(13-16x)

[0169] Q3=(2 / 95)1 / 2*[29-4x(25-19x)]

[0170] Q4=(2 / 2545)1 / 2*{207-4x[315-x(577-320x)]}

[0171] Q5=1 / [3(131831)1 / 2]*(7737-16x{4653-2x[7381-8x(1168-509x)]})

[0172] Q6=1 / [3(6632213)1 / 2]*[66657-32x(28338-x{135325-8x[35884-x(34661-12432x)]})]

[0173] …

[0174] Q14=1 / [105(11840460120650380601)1 / 2]*[(7203239841945-64x{7915646109420+x[-215 571481855135+8x(380772337022140+x{-3210346879785983+16x[1092344486470622+x(-4 024794759472603+8x{1288416271535704+x[-2318831260982541+32x(91315254656436+x{ -78868671818049+8x[5558445097372+x(-1842465232973+272260669072x)]})]})]})]})]

[0175] The imaging lens assembly 21 used in the following example includes a lens having a non-rotationally symmetric aspherical surface, which is made symmetrically with respect to the X-axis and the Y-axis. The non-rotationally symmetric aspherical shape is defined by the Q2D polynomial shown in the following formula (26). It should be noted that the Q2D polynomial is defined as the sum of the Qbfs polynomial and the polynomial of the free surface part.

[0176] Z=C×r 2 / {1+[1-(1+K)×C 2 × 2 ] 1 / 2}+{(1-K×C 2 × 2 ) 1 / 2} / {[1-(1+K)×C 2 × 2 ] 1 / 2}×{μ2 ×(1-μ 2 )×(ΣQBn×Qn1(μ 2 ))+Σμ m ×Σ[An×cos(mθ)+Bn×sin(mθ)]×Qn2(μ 2 )}

[0177] (n is an even number greater than or equal to 4, and m is an integer greater than or equal to 1) (26)

[0179] In formula (26), Z is the depth of the aspheric surface (mm). C is the paraxial curvature equal to 1 / R. r is the distance from the optical axis to the lens surface (X 2 +Y 2 ) 1 / 2 (mm). μ is the value of (distance from the optical axis to the lens surface / normalized radius of the lens). θ is the angle between r and the X-axis. K is the eccentricity (second-order aspheric coefficient), that is, the cone coefficient. QBn is the n-th order Qbfs coefficient excluding the azimuth angle. Qn1 is the n-th order coefficient specific to the Qbfs polynomial, and its value is equal to Qn in formula (25). Qn2 is the polynomial-specific coefficient of the free-form surface part. An is the n-th order coefficient of the azimuth angle cos(mθ). Bn is the n-th order coefficient of the azimuth angle sin(mθ).

[0180] When m=1, it is known that the coefficient Qn2 takes the value shown below (partial excerpt).

[0181] Q1=1

[0182] Q2=[4(1-x)] / 14 1 / 2

[0183] Q3=2[25-8(11-7x)x] / 1610 1 / 2

[0184] Q4=4{275-x[2187-16(234-115x)x]} / 781310 1 / 2

[0185] Q5=(40786-64x{9043-x[29083-4(8578-3397x)x]}) / 1078214594 1 / 2

[0186] When m=2, it is known that the coefficient Qn2 takes the value shown below (partial excerpt).

[0187] Q1=1 / 2 1 / 2

[0188] Q2=(9-8x) / 381 / 2

[0189] Q3 = [205-8(65-38x)x] / 5510 1 / 2

[0190] Q4={5495-16x[1750-(2569-1160x)x]} / 1983890 1 / 2

[0191] Q5=(200853-16x{106842-x[282609-8(37233-13682x)x]}) / [7(32522114) 1 / 2 ]

[0192] When m=3, it is known that the coefficient Qn2 takes the value shown below (partial excerpt).

[0193] Q1=4 / [3(6) 1 / 2 ]

[0194] Q2 = [48(10-9x)] / [9(1110) 1 / 2 ]

[0195] Q3=4[6755-48(329-185x)x] / [3(4737110) 1 / 2 ]

[0196] Q4=32{40194-x[176715-8(29889-12803x)x]} / [9(361377478) 1 / 2 ]

[0197] Q5=(691812-64x{76131-x[180387-16(11042-3849x)x]}) / [3(378538886) 1 / 2 ]

[0198] When m=4, it is known that the coefficient Qn2 takes the value shown below (partial excerpt).

[0199] Q1=1 / 5 1 / 2

[0200] Q2=(35-32x) / 427 1 / 2

[0201] Q3=[3948-80(111-61x)x] / 509655 1 / 2

[0202] Q4=8{57981-4x[58806-7(10791-4456x)x]} / 14360094981 / 2

[0203] When m=5, it is known that the coefficient Qn2 takes the value shown below (partial excerpt).

[0204] Q1=16 / [5(70) 1 / 2 ]

[0205] Q2=32(27-25x) / [35(195) 1 / 2 ]

[0206] Q3=32[21417-40(1177-637x)x] / [35(7913334) 1 / 2 ]

[0207] Q4=32{16160001-35x[1778777-32(68848-27669x)x]} / [5(32527771277001) 1 / 2 ]

[0208] [First example]

[0209] Describes how to apply a specific value to Figure 2 A first example of a camera module 11 is shown.

[0210] In the first example, if Figure 2 As shown, the imaging lens assembly 21 includes, from the object side, a first lens L1 with positive refractive power and a convex surface facing the object side, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power, a fifth lens L5 with positive refractive power and a convex surface facing the image side, a sixth lens L6 with negative refractive power, a seventh lens L7 with positive refractive power and an eighth lens L8 with negative refractive power.

[0211] The aperture stop 3 is disposed on the image side with respect to the vertex of the first surface of the first lens L1 and on the object side with respect to the second surface of the first lens L1. In the first example, the second surface of the first lens L1 has a non-rotationally symmetric aspherical surface.

[0212] Table 1 shows the radius of curvature R (mm), surface distance D (mm), refractive index Nd and Abbe number νd of lens data as a first example. Table 2 shows the focal length FL, F number Fno, angle of view, total track length TTL obtained when photographing an object point at infinity, sensor size (diagonal length), and flange distance value FB of the imaging lens assembly 21. Table 3 shows the focal length values ​​of the first lens L1 to the eighth lens L8. Table 4 shows the values ​​corresponding to the conditional expressions shown in inequalities (1) to (24). Table 5 shows each radius of curvature, normalized radius NRADIUS, cone coefficient K, coefficients of the Qbfs polynomial and coefficients of the Q2D polynomial of the first lens L1 to the eighth lens L8. In Table 5, QBn is the nth order Qbfs coefficient. In Table 5, An(m=i) is the nth order coefficient (i.e., the maximum radial coefficient) of the azimuth angle cos(iθ) when m is equal to i.

[0213] Table 1

[0214] R D Nd vd 1.00E+18 1.145 Aperture stop 1.00E+18 -1.145 L1R1 3.420 1.624 1.548 69.750 L1R2 18.341 0.020 L2R1 11.129 0.304 1.644 21.884 L2R2 4.927 0.317 L3R1 23.742 0.495 1.648 22.522 L3R2 37.651 0.333 L4R1 -13.552 0.451 1.684 19.246 L4R2 -32.514 0.067 L5R1 -33.081 0.957 1.558 46.776 L5R2 -5.657 0.477 L6R1 -5.117 0.515 1.6775 19.60 L6R2 -9.387 0.404 L7R1 -7.210 1.040 1.5590 34.08 L7R2 -5.082 0.710 L8R1 -16.108 0.450 1.5950 31.63 L8R2 -21.469 0.201 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.468

[0215] Table 2

[0216] FL 7.089 Fno 1.38 Perspective 81.11 TTL(INF) 9.166 Sensor size 12.492 FB 0.803

[0217] Table 3

[0218] L1 6.96 L2 -18.27 L3 108.85 L4 -100.63 L5 32.09 L6 -159.84 L7 9.70 L8 -5.42

[0219] Table 4

[0220] Conditional Expressions First example Fno<2.2 1.38 HFOV<45 40.54 vd1>45 69.75 vd6<40 19.60 vd1-vd2>10 47.87 0.3<F1 / FL<4.3 0.981 0.5<|F8 / FL|<1.1 0.764 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.139 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 2.139 2.5<∑|FL / F(i)|<5.0 3.847 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.729 <![CDATA[5<TTL / D L6 <28]]> 17.798 0<(R3+R4) / (R3-R4)<10.0 2.758 0<(R9+R10) / (R9-R10)<3.5 1.437 -16<(R7+R8) / (R7-R8)<2 -2.258 -10<(R11+R12) / (R11-R12)<0 -3.375 0<R13 / R14<4.0 1.388 Nd2<1.75 1.644 Nd4<1.75 1.684 Nd6<1.75 1.678 200<∑vd(i)<380 265.49 TTL / ImgH<2.5 1.467 TTL / FL<2.0 1.293 TTL / BFL<15 11.416

[0221] Table 5

[0222]

[0223]

[0224] The aberrations of the first example are as follows: Figure 3 shown. Figure 3 Spherical aberration, astigmatism (field curvature), and distortion are shown as examples of aberrations. Each of these aberration diagrams shows the aberration with the d-line (587.56nm) as the reference wavelength. In the spherical aberration diagram, aberrations with respect to the g-line (435.84nm) and the C-line (656.27nm) are also shown. In the diagram showing astigmatism, "S" represents the aberration value on the sagittal image surface, and "T" represents the aberration value on the tangential image surface. The same applies to the aberration diagrams in the other examples.

[0225] Figure 4 , each root mean square (RMS) aperture radius diagram in the first example is shown. Figure 4 A graph of the RMS aperture radius corresponding to the real radiographic image height on the X-axis and the real radiographic image height on the Y-axis is shown.

[0226] according to Figure 3 Aberration diagrams and Figure 4 As can be seen from the RMS aperture radius diagram, the camera module 11 in the first example achieves significant miniaturization by effectively correcting aberrations and has good optical performance.

[0227] [Second example]

[0228] Next, we will describe how to apply specific values ​​to Figure 5 The second example of the camera module 11 is shown. In the second example, the first surface of the eighth lens L8 has a non-rotationally symmetric aspherical surface. The lens parameters corresponding to the lens parameters in the second example are shown in Tables 6 to 10.

[0229] Table 6

[0230] R D Nd vd 1.00E+18 1.204 Aperture stop 1.00E+18 -1.204 L1R1 3.370 1.588 1.575 65.426 L1R2 15.692 0.020 L2R1 9.264 0.300 1.681 19.414 L2R2 5.405 0.280 L3R1 10.746 0.691 1.684 19.246 L3R2 13.159 0.374 L4R1 -12.797 0.335 1.663 21.017 L4R2 -27.032 0.067 L5R1 -25.844 1.061 1.558 46.794 L5R2 -5.383 0.626 L6R1 -4.645 0.449 1.6839 19.25 L6R2 -9.141 0.425 L7R1 -7.886 0.686 1.6245 25.63 L7R2 -6.422 0.949 L8R1 -10.794 0.450 1.5900 32.99 L8R2 -13.775 0.048 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.515

[0231] Table 7

[0232] FL 7.372 Fno 1.38 Perspective 78.90 TTL(INF) 9.200 Sensor size 12.492 FB 0.850

[0233] Table 8

[0234] L1 7.59 L2 -16.42 L3 35.38 L4 -56.70 L5 20.29 L6 -121.85 L7 12.40 L8 -5.34

[0235] Table 9

[0236] Conditional Expressions Second example Fno<2.2 1.38 HFOV<45 39.45 vd1>45 65.43 vd6<40 19.25 vd1-vd2>10 46.01 0.3<F1 / FL<4.3 1.029 0.5<|F8 / FL|<1.1 0.725 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.064 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.425 2.5<∑|FL / F(i)|<5.0 4.156 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.744 <![CDATA[5<TTL / D L6 <28]]> 20.490 0<(R3+R4) / (R3-R4)<10.0 3.544 0<(R9+R10) / (R9-R10)<3.5 1.515 -16<(R7+R8) / (R7-R8)<2 -2.761 -10<(R11+R12) / (R11-R12)<0 -3.512 0<R13 / R14<4.0 1.409 Nd2<1.75 1.681 Nd4<1.75 1.663 Nd6<1.75 1.684 200<∑vd(i)<380 249.76 TTL / ImgH<2.5 1.473 TTL / FL<2.0 1.248 TTL / BFL<15 10.827

[0237] Table 10

[0238]

[0239]

[0240] Figure 6 Each aberration in the second example is shown. The RMS stop diagram in the second example is as follows Figure 7 According to the camera module 11 of the second example, by making the lens parameters different from those of the first example, it is possible to further improve the degree of freedom in designing the camera module 11 while obtaining the same effects as those of the first example.

[0241] [Third Example]

[0242] Next, we will describe how to apply specific values ​​to Figure 8The third example of the camera module 11 shown in FIG. 1 is different from the first example and the second example, in the third example, the fourth lens L4 has a positive refractive power, and the sixth lens L6 has a positive refractive power. In the third example, the second surface of the seventh lens L7 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 11 to 15.

[0243] Table 11

[0244] R D Nd vd 1.00E+18 0.866 Aperture stop 1.00E+18 -0.866 L1R1 3.430 1.512 1.562 67.435 L1R2 16.222 0.020 L2R1 10.216 0.300 1.602 26.216 L2R2 5.413 0.148 L3R1 8.579 0.619 1.677 19.741 L3R2 11.013 0.364 L4R1 -20.635 0.448 1.650 21.450 L4R2 -68.155 0.103 L5R1 -24.646 1.049 1.547 55.911 L5R2 -4.915 0.470 L6R1 -3.522 0.454 1.6839 19.25 L6R2 -9.535 0.527 L7R1 -7.826 0.832 1.5987 26.61 L7R2 -5.651 0.811 L8R1 -12.332 0.450 1.5887 28.08 L8R2 -18.231 0.137 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.425

[0245] Table 12

[0246] FL 6.736 Fno 1.38 Perspective 83.99 TTL(INF) 9.007 Sensor size 12.492 FB 0.760

[0247] Table 13

[0248] L1 7.98 L2 -15.98 L3 31.03 L4 1347.63 L5 24.21 L6 80.58 L7 12.36 L8 -5.20

[0249] Table 14

[0250] Conditional Expressions Third Example Fno<2.2 1.38 HFOV<45 41.99 vd1>45 67.43 vd6<40 19.25 vd1-vd2>10 41.22 0.3<F1 / FL<4.3 1.184 0.5<|F8 / FL|<1.1 0.773 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.144 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.956 2.5<∑|FL / F(i)|<5.0 3.689 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.735 <![CDATA[5<TTL / D L6 <28]]> 19.839 0<(R3+R4) / (R3-R4)<10.0 2.106 0<(R9+R10) / (R9-R10)<3.5 1.545 -16<(R7+R8) / (R7-R8)<2 -2.028 -10<(R11+R12) / (R11-R12)<0 -3.193 0<R13 / R14<4.0 1.527 Nd2<1.75 1.602 Nd4<1.75 1.650 Nd6<1.75 1.684 200<∑vd(i)<380 264.69 TTL / ImgH<2.5 1.442 TTL / FL<2.0 1.337 TTL / BFL<15 11.853

[0251] Table 15

[0252]

[0253]

[0254] Fig. 9 Aberrations in the third example are shown. Fig.10 The RMS aperture radius diagram in the third example is shown. According to the camera module 11 of the third example, by making the lens parameters different from those of the first example, the degree of freedom in designing the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0255] [Fourth example]

[0256] Next, we will describe how to apply specific values ​​to Fig.11 A fourth example of the camera module 11 shown. Unlike the first and second examples, in the fourth example, the sixth lens L6 has a positive refractive power. In the fourth example, the first surface of the seventh lens L7 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters of the first example are shown in Tables 16 to 20.

[0257] Table 16

[0258] R D Nd vd 1.00E+18 1.283 Aperture stop 1.00E+18 -1.283 L1R1 3.367 1.690 1.554 62.402 L1R2 16.243 0.020 L2R1 11.291 0.304 1.682 19.407 L2R2 5.926 0.232 L3R1 10.899 0.651 1.530 44.299 L3R2 13.434 0.367 L4R1 -11.530 0.343 1.681 19.402 L4R2 -24.806 0.050 L5R1 -24.054 0.970 1.547 55.173 L5R2 -5.265 0.546 L6R1 -5.262 0.510 1.6636 20.93 L6R2 -8.805 0.511 L7R1 -7.655 0.759 1.5122 55.50 L7R2 -3.536 0.842 L8R1 -13.853 0.450 1.5858 34.28 L8R2 -17.210 0.109 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.495

[0259] Table 17

[0260] FL 7.411 Fno 1.38 Perspective 78.58 TTL(INF) 9.185 Sensor size 12.492 FB 0.829

[0261] Table 18

[0262] L1 7.41 L2 -16.67 L3 43.80 L4 -56.59 L5 24.31 L6 188.46 L7 11.54 L8 -5.03

[0263] Table 19

[0264] Conditional Expressions Fourth Example Fno<2.2 1.38 HFOV<45 39.29 vd1>45 62.40 vd6<40 20.93 vd1-vd2>10 42.99 0.3<F1 / FL<4.3 0.999 0.5<|F8 / FL|<1.1 0.678 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.100 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.600 2.5<∑|FL / F(i)|<5.0 4.206 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.735 <![CDATA[5<TTL / D L6 <28]]> 18.010 0<(R3+R4) / ((R3-R4)<10.0 3.148 0<(R9+R10) / (R9-R10)<3.5 1.562 -16<(R7+R8) / (R7-R8)<2 -2.708 -10<(R11+R12) / (R11-R12)<0 -3.801 0<R13 / R14<4.0 1.481 Nd2<1.75 1.682 Nd4<1.75 1.681 Nd6<1.75 1.664 200<∑vd(i)<380 311.39 TTL / ImgH<2.5 1.471 TTL / FL<2.0 1.239 TTL / BFL<15 11.072

[0265] Table 20

[0266]

[0267]

[0268] Fig.12 Aberrations in the fourth example are shown. Fig.13 The RMS aperture radius diagram in the fourth example is shown. According to the camera module 11 of the fourth example, by making the lens parameters different from those of the first example, the degree of freedom in designing the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0269] [Fifth example]

[0270] Next, we will describe how to apply specific values ​​to Fig.14 The fifth example of the camera module 11 shown in FIG. 1 is different from the first and second examples. In the fifth example, the sixth lens L6 has a positive refractive power. In the fifth example, the second surface of the sixth lens L6 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 21 to 25.

[0271] Table 21

[0272] R D Nd vd 1.00E+18 1.172 Aperture stop 1.00E+18 -1.172 L1R1 3.379 1.822 1.528 73.853 L1R2 12.912 0.020 L2R1 7.013 0.300 1.638 22.398 L2R2 5.061 0.074 L3R1 7.589 0.365 1.657 21.598 L3R2 9.731 0.483 L4R1 -19.075 0.300 1.525 56.236 L4R2 -22.241 0.150 L5R1 -17.956 0.978 1.550 52.507 L5R2 -5.769 0.556 L6R1 -4.697 0.474 1.6183 24.26 L6R2 -8.721 0.510 L7R1 -6.982 0.802 1.5695 31.62 L7R2 -5.567 0.844 L8R1 -15.302 0.450 1.5856 32.70 L8R2 -19.252 0.154 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.472

[0273] Table 22

[0274] FL 7.221 Fno 1.38 Perspective 80.05 TTL(INF) 9.089 Sensor size 12.492 FB 0.807

[0275] Table 23

[0276] L1 27.45 L2 -20.54 L3 7.26 L4 -76.50 L5 26.28 L6 63.87 L7 14.76 L8 -5.70

[0277] Table 24

[0278] Conditional Expressions Fifth example Fno<2.2 1.38 HFOV<45 40.02 vd1>45 73.85 vd6<40 24.26 vd1-vd2>10 51.45 0.3<F1 / FL<4.3 3.801 0.5<|F8 / FL|<1.1 0.789 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.142 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.928 2.5<∑|FL / F(i)|<5.0 3.849 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.739 <![CDATA[5<TTL / D L6 <28]]> 19.176 0<(R3+R4) / (R3-R4)<10.0 6.186 0<(R9+R10) / (R9-R10)<3.5 1.947 -16<(R7+R8) / (R7-R8)<2 -13.049 -10<(R11+R12) / (R11-R12)<0 -3.334 0<R13 / R14<4.0 1.254 Nd2<1.75 1.638 Nd4<1.75 1.525 Nd6<1.75 1.618 200<∑vd(i)<380 315.17 TTL / mgH<2.5 1.455 TTL / FL<2.0 1.259 TTL / BFL<15 11.267

[0279] Table 25

[0280]

[0281]

[0282] Fig.15Aberrations in the fifth example are shown. Fig.16 The RMS aperture radius diagram in the fifth example is shown. According to the camera module 11 of the fifth example, by making the lens parameters different from those of the first example, the degree of freedom in designing the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0283] [Sixth Example]

[0284] Next, we will describe how to apply specific values ​​to Fig.17 The sixth example of the camera module 11 shown in FIG. 1 is different from the first example and the second example, the sixth lens L6 in the sixth example has a positive refractive power. In the sixth example, the second surface of the sixth lens L6 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 26 to 30.

[0285] Table 26

[0286] R D Nd vd 1.00E+18 0.957 Aperture stop 1.00E+18 -0.957 L1R1 3.477 1.577 1.546 70.120 L1R2 14.648 0.020 L2R1 10.555 0.300 1.511 56.474 L2R2 3.446 0.343 L3R1 11.100 0.511 1.667 20.216 L3R2 14.096 0.325 L4R1 -13.111 0.428 1.633 22.784 L4R2 -80.025 0.056 L5R1 -41.310 0.876 1.579 36.537 L5R2 -5.862 0.443 L6R1 -4.685 0.491 1.6839 19.25 L6R2 -9.555 0.665 L7R1 -7.619 0.851 1.5842 28.81 L7R2 -3.805 0.773 L8R1 -13.001 0.450 1.5812 29.35 L8R2 -15.490 0.146 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.411

[0287] Table 27

[0288] FL 6.914 Fno 1.38 Perspective 82.63 TTL(INF) 9.001 Sensor size 12.492 FB 0.746

[0289] Table 28

[0290] L1 8.88 L2 -71.78 L3 179.25 L4 -41.44 L5 20.69 L6 71.47 L7 12.60 L8 -5.59

[0291] Table 29

[0292] Conditional Expressions Sixth Example Fno<2.2 1.38 HFOV<45 41.39 vd1>45 70.12 vd6<40 19.25 vd1-vd2>10 13.65 0.3<F1 / FL<4.3 1.291 0.5<|F8 / FL|<1.1 0.813 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.163 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 2.277 2.5<∑|FL / F(i)|<5.0 3.276 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.728 <![CDATA[5<TTL / D L6 <28]]> 18.295 0<(R3+R4) / (R3-R4)<10.0 3.426 0<(R9+R10) / (R9-R10)<3.5 1.305 -16<(R7+R8) / (R7-R8)<2 -1.390 -10<(R11+R12) / ((R11-R12)<0 -3.509 0<R13 / R14<4.0 1.488 Nd2<1.75 1.511 Nd4<1.75 1.633 Nd6<1.75 1.684 200<∑vd(i)<380 283.54 TTL / ImgH<2.5 1.438 TTL / FL<2.0 1.306 TTL / BFL<15 12.344

[0293] Table 30

[0294]

[0295]

[0296] Fig.18 Aberrations in the sixth example are shown. Fig.19 The RMS aperture radius diagram in the sixth example is shown. According to the camera module 11 of the sixth example, by making the lens parameters different from those of the first example, the degree of freedom in designing the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0297] [Seventh example]

[0298] Next, we will describe how to apply specific values ​​to Fig. 20The seventh example of the camera module 11 shown. Unlike the first and second examples, the second lens L2 in the seventh example has a positive refractive power. In the seventh example, the first surface of the sixth lens L6 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 31 to 35.

[0299] Table 31

[0300] R D Nd vd 1.00E+18 0.927 Aperture stop 1.00E+18 -0.927 L1R1 3.617 1.321 1.569 66.296 L1R2 24.234 0.020 L2R1 8.525 0.470 1.594 27.261 L2R2 4.189 0.383 L3R1 12.854 0.578 1.545 55.936 L3R2 -63.959 0.340 L4R1 -9.036 0.417 1.613 24.851 L4R2 -15.830 0.045 L5R1 -21.899 1.040 1.540 56.016 L5R2 -5.249 0.401 L6R1 -4.823 0.466 1.6837 19.26 L6R2 -8.009 0.300 L7R1 -9.444 1.044 1.5795 29.64 L7R2 -5.578 0.897 L8R1 -12.848 0.450 1.5959 31.18 L8R2 -16.167 0.131 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.395

[0301] Table 32

[0302] FL 6.819 Fno 1.38 Perspective 83.30 TTL(INF) 9.033 Sensor size 12.492 FB 0.729

[0303] Table 33

[0304] L1 10.32 L2 870.14 L3 36.38 L4 -119.32 L5 56.06 L6 -98.69 L7 8.43 L8 -4.74

[0305] Table 34

[0306] Conditional Expressions Example 7 Fno<2.2 1.38 HFOV<45 41.65 vd1>45 66.30 vd6<40 19.26 vd1-vd2>10 39.03 0.3<F1 / FL<4.3 1.514 0.5<|F8 / FL|<1.1 0.695 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.151 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.965 2.5<∑|FL / F(i)|<5.0 3.351 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.736 <![CDATA[5<TTL / D L6 <28]]> 19.384 0<((R3+R4) / (R3-R4)<10.0 4.065 0<(R9+R10) / (R9-R10)<3.5 1.648 -16<(R7+R8) / (R7-R8)<2 -3.429 -10<(R11+R12) / (R11-R12)<0 -4.756 0<R13 / R14<4.0 2.045 Nd2<1.75 1.594 Nd4<1.75 1.613 Nd6<1.75 1.684 200<∑vd(i)<380 310.44 TTL / ImgH<2.5 1.446 TTL / FL<2.0 1.325 TTL / BFL<15 12.390

[0307] Table 35

[0308]

[0309]

[0310] Fig.21 Aberrations in the seventh example are shown. Fig. 22 The RMS aperture radius diagram in the seventh example is shown. According to the camera module 11 of the seventh example, by making the lens parameters different from those of the first example, the degree of freedom in designing the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0311] [Eighth Example]

[0312] Next, we will describe how to apply specific values ​​to Fig.23 The eighth example of the camera module 11 is shown. In the eighth example, the second surface of the fifth lens L5 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 36 to 40.

[0313] Table 36

[0314] R D Nd vd 1.00E+18 1.085 Aperture stop 1.00E+18 -1.085 L1R1 3.434 1.694 1.544 70.619 L1R2 14.778 0.020 L2R1 10.470 0.301 1.662 20.577 L2R2 3.587 0.211 L3R1 10.990 0.641 1.622 25.988 L3R2 15.001 0.339 L4R1 -11.259 0.528 1.580 29.608 L4R2 -21.272 0.077 L5R1 -19.890 0.946 1.583 35.353 L5R2 -5.309 0.399 L6R1 -5.783 0.557 1.5627 33.17 L6R2 -8.951 0.385 L7R1 -7.254 0.881 1.5900 27.91 L7R2 -6.711 0.860 L8R1 -10.604 0.450 1.5845 34.70 L8R2 -14.715 0.051 IRCF 1.OOE+18 0.334 1.5200 64.20 1.00E*18 0.486

[0315] Table 37

[0316] FL 7.097 Fno 1.38 Perspective 81.05 TTL(INF) 9.162 Sensor size 12.492 FB 0.820

[0317] Table 38

[0318] L1 8.03 L2 -23.14 L3 39.93 L4 -106.16 L5 29.95 L6 -857.59 L7 11.50 L8 -5.24

[0319] Table 39

[0320] Conditional Expressions Example 8 Fno<2.2 1.38 HFOV<45 40.53 vd1>45 70.62 vd6<40 33.17 vd1-vd2>10 50.04 0.3<F1 / FL<4.3 1.132 0.5<|F8 / FL|<1.1 0.738 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.103 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.670 2.5<∑|FL / F(i)<5.0 3.651 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.717 <![CDATA[5<TTL / D L6 <28]]> 16.443 0<(R3+R4) / (R3-R4)<10.0 3.059 0<(R9+R10) / (R9-R10)<3.5 1.757 -16<(R7+R8) / (R7-R8)<2 -3.394 -10<(R11+R12) / (R11-R12)<0 -3.802 0<R13 / R14<4.0 1.443 Nd2<1.75 1.662 Nd4<1.75 1.580 Nd6<1.75 1.563 200<∑vd(i)<380 277.93 TTL / ImgH<2.5 1.466 TTL / FL<2.0 1.291 TTL / BFL<15 11.202

[0321] Table 40

[0322]

[0323]

[0324] The aberration in the eighth example is as follows Fig.24 shown. Fig.25 The RMS aperture radius diagram in the eighth example is shown. According to the camera module 11 of the eighth example, by making the lens parameters different from those of the first example, the degree of freedom in designing the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0325] [Ninth Example]

[0326] Next, we will describe how to apply specific values ​​to Fig.26 The ninth example of the camera module 11 shown. Unlike the first and second examples, in the ninth example, the sixth lens L6 has a positive refractive power. In the ninth example, the first surface of the fifth lens L5 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 41 to 45.

[0327] Table 41

[0328] R D Nd vd 1.00E+18 1.177 Aperture stop 1.00E+18 -1.177 L1R1 3.429 1.629 1.540 71.322 L1R2 17.487 0.020 L2R1 9.706 0.300 1.657 20.908 L2R2 5.106 0.316 L3R1 14.034 0.531 1.554 39.254 L3R2 17.741 0.396 L4R1 -11.330 0.398 1.684 19.246 L4R2 -17.839 0.069 L5R1 -15.330 0.879 1.547 55.912 L5R2 -4.998 0.555 L6R1 -5.009 0.462 1.6839 19.25 L6R2 -7.076 0.388 L7R1 -7.087 0.894 1.5305 44.12 L7R2 -5.724 0.882 L8R1 -11.627 0.450 1.5917 30.48 L8R2 -17.255 0.108 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.490

[0329] Table 42

[0330] FL 7.190 Fno 1.38 Perspective 80.29 TTL(INF) 9.101 Sensor size 12.492 FB 0.824

[0331] Table 43

[0332] L1 7.12 L2 -17.43 L3 63.40 L4 -151.62 L5 34.13 L6 1893.79 L7 10.50 L8 -4.86

[0333] Table 44

[0334] Conditional Expressions Ninth Example Fno<2.2 1.38 HFOV<45 40.15 vd1>45 71.32 vd6<40 19.25 vd1-vd2>10 50.41 0.3<F1 / FL<4.3 0.990 0.5<|F8 / FL|<1.1 0.677 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.125 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.645 2.5<∑|FL / F(i)|<5.0 3.961 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.722 <![CDATA[5<TTL / D L6 <28]]> 19.699 0<(R3+R4) / (R3-R4)<10.0 3.011 0<(R9+R10) / (R9-R10)<3.5 1.991 -16<(R7+R8) / (R7-R8)<2 -4.126 -10<(R11+R12) / (R11-R12)<0 -6.814 0<R13 / R14<4.0 1.354 Nd2<1.75 1.657 Nd4<1.75 1.684 Nd6<1.75 1.684 200<∑vd(i)<380 300.49 No L / ImgH<2.5 1.457 TTL / FL<2.0 1.266 TTL / BFL<15 11.041

[0335] Table 45

[0336]

[0337]

[0338] The aberration in the ninth example is as follows Fig. 27 shown. Fig.28The RMS aperture radius diagram in the ninth example is shown. According to the camera module 11 of the ninth example, by making the lens parameters different from those of the first example, the degree of freedom in designing the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0339] [Tenth Example]

[0340] Next, we will describe how to apply specific values ​​to Fig.29 The tenth example of the camera module 11 shown. Unlike the first and second examples, in the tenth example, the sixth lens L6 has a positive refractive power. In the tenth example, the first surface of the fourth lens L4 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 46 to 50.

[0341] Table 46

[0342] R D Nd vd 1.00E+18 1.179 Aperture stop 1.00E+18 -1.179 L1R1 3.397 1.484 1.545 70.246 L1R2 15.458 0.020 L2R1 10.793 0.343 1.654 21.140 L2R2 5.682 0.267 L3R1 10.766 0.618 1.605 29.209 L3R2 16.928 0.336 L4R1 -11.730 0.407 1.683 19.290 L4R2 -29.858 0.104 L5R1 -23.105 1.103 1.593 32.093 L5R2 -5.712 0.457 L6R1 -5.707 0.500 1.6818 19.38 L6R2 -8.506 0.422 L7R1 -8.955 0.577 1.5956 29.33 L7R2 -7.829 0.965 L8R1 -9.610 0450 1.5535 35.65 L8R2 -14.510 0.264 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.491

[0343] Table 47

[0344] FL 7.159 Fno 1.38 Perspective 80.54 TTL(INF) 9.143 Sensor size 12.492 FB 0.825

[0345] Table 48

[0346] L1 7.71 L2 -18.52 L3 38.08 L4 -58.93 L5 33.19 L6 181.79 L7 8.93 L8 -5.31

[0347] Table 49

[0348] Conditional Expressions Example 10 Fno<2.2 1.38 HFOV<45 40.27 vd1>45 70.25 vd6<40 19.38 vd1-vd2>10 49.11 0.3<F1 / FL<4.3 1.077 0.5<|F8 / FL|<1.1 0.742 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.183 <![CDATA[0.5<|F L6-L8 / F L1-L5 <3.9]]> 3.162 2.5<∑|FL / F(i)|<5.0 4.030 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.716 <![CDATA[5<TTL / D L6 <28]]> 18.286 0<(R3+R4) / (R3-R4)<10.0 3.203 0<(R9+R10) / (R9-R10)<3.5 1.645 -16<(R7+R8) / (R7-R8)<2 -2.361 -10<(R11+R12) / (R11-R12)<0 -4.744 0<R13 / R14<4.0 1.893 Nd2<1.75 1.654 Nd4<1.75 1.683 Nd6<1.75 1.682 200<∑vd(i)<380 256.33 TTL / ImgH<2.5 1.464 TTL / FL<2.0 1.277 TTL / BFL<15 11.079

[0349] Table 50

[0350]

[0351]

[0352] The aberration in the tenth example is as follows Fig.30 shown. Fig.31 The RMS aperture radius diagram in the tenth example is shown. According to the camera module 11 of the tenth example, by making the lens parameters different from those of the first example, the degree of freedom in design of the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0353] [Eleventh Example]

[0354] Next, we will describe how to apply specific values ​​to Fig.32The eleventh example of the camera module 11 shown. Unlike the first and second examples, the fourth lens L4 in the eleventh example has a positive refractive power. In the eleventh example, the second surface of the third lens L3 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 51 to 55.

[0355] Table 51

[0356] R D Nd vd 1.00E+18 1.189 Aperture stop 1.00E+18 -1.189 L1R1 3.383 1.449 1.543 50.271 L1R2 17.326 0.020 L2R1 10.768 0.300 1.683 19.316 L2R2 5.647 0.306 L3R1 11.735 0.564 1.534 42.452 L3R2 12.513 0.318 L4R1 -17.733 0.404 1.663 20.954 L4R2 -28.959 0.084 L5R1 -23.080 0.900 1.539 56.031 L5R2 -5.573 0.456 L6R1 -5.255 0.457 1.6839 19.25 L6R2 -9.076 0.465 L7R1 -7.263 1.013 1.5742 33.74 L7R2 -5.630 0.739 L8R1 -12.413 0.450 1.5876 32.94 L8R2 -16.612 0.111 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.451

[0357] Table 52

[0358] FL 6.928 Fno 1.38 Perspective 82.40 TTL(INF) 8.822 Sensor size 12.492 FB 0.786

[0359] Table 53

[0360] L1 7.47 L2 -24.55 L3 154.91 L4 2857.34 L5 36.32 L6 -12698.69 L7 10.25 L8 -5.03

[0361] Table 54

[0362] Conditional Expressions Example 11 Fno<2.2 1.38 HFOV<45 41.20 vd1>45 50.27 vd6<40 19.25 vd1-vd2>10 30.96 0.3<F1 / FL<4.3 1.078 0.5<|F8 / FL|<1.1 0.726 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.128 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.849 2.5<∑|FL / F(i)|<5.0 3.502 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.717 <![CDATA[5<TTL / D L6 <28]]> 19.304 0<(R3+R4) / (R3-R4)<10.0 3.195 0<(R9+R10) / (R9-R10)<3.5 1.629 -16<(R7+R8) / (R7-R8)<2 -2.472 -10<(R11+R12) / (R11-R12)<0 -3.632 0<R13 / R14<4.0 1.486 Nd2<1.75 1.683 Nd4<1.75 1.663 Nd6<1.75 1.684 200<∑vd(i)<380 274.95 TTL / ImgH<2.5 1.412 TTL / FL<2.0 1.273 TTL / BFL<15 11.231

[0363] Table 55

[0364]

[0365]

[0366] The aberration in the eleventh example is as follows Fig.33 shown. Fig.34 The RMS aperture radius diagram in the eleventh example is shown. According to the camera module 11 of the eleventh example, by making the lens parameters different from those of the first example, the degree of freedom in design of the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0367] [Twelfth Example]

[0368] Next, we will describe how to apply specific values ​​to Fig.35 The twelfth example of the camera module 11 shown. Unlike the first and second examples, in the twelfth example, the sixth lens L6 has a positive refractive power. In the twelfth example, the first surface of the third lens L3 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 56 to 60.

[0369] Table 56

[0370] R D Nd vd 1.00E-18 1.245 Aperture stop 1.00E+18 -1.245 L1R1 3.410 1.501 1.562 62.850 L1R2 16.623 0.020 L2R1 10.988 0.309 1.684 19.246 L2R2 5.911 0.352 L3R1 11.201 0.603 1.627 25.311 L3R2 12.251 0.449 L4R1 -9.637 0.311 1.684 19.246 L4R2 -17.589 0.021 L5R1 -22.162 1.008 1.547 55.912 L5R2 -5.071 0.560 L6R1 -4.574 0.486 1.6839 19.25 L6R2 -8.875 0.572 L7R1 -7.318 0.800 1.5665 32.27 L7R2 -5.845 0.834 L8R1 -11.457 0.450 1.5809 29.82 L8R2 -15.921 0.084 IRCF 1.00E-18 0.334 1.5200 64.20 1.00E-18 0.504

[0371] Table 57

[0372] FL 7.392 Fno 1.38 Perspective 78.73 TTL(INF) 9.200 Sensor size 12.492 FB 0.839

[0373] Table 58

[0374] L1 7.50 L2 -19.81 L3 93.22 L4 -74.54 L5 23.14 L6 71.28 L7 15.93 L8 -5.41

[0375] Table 59

[0376] Conditional Expressions Example 12 Fno<2.2 1.38 HFOV<45 39.36 vd1>45 62.85 vd6<40 19.25 vd1-vd2>10 43.60 0.3<F1 / FL<4.3 1.015 0.5<|F8 / FL|<1.1 0.732 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.101 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.544 2.5<∑|FL / F(i)|<5.0 3.790 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.754 <![CDATA[5<TTL / D L6 <28]]> 18.930 0<(R3+R4) / (R3-R4)<10.0 3.300 0<(R9+R10) / (R9-R10)<3.5 1.592 -16<(R7+R8) / (R7-R8)<2 -3.469 -10<(R11+R12) / (R11-R12)<0 -3.558 0<R13 / R14<4.0 1.386 Nd2<1.75 1.684 Nd4<1.75 1.684 Nd6<1.75 1.684 200<∑vd(i)<380 263.90 TTL / ImgH<2.5 1.473 TTL / FL<2.0 1.245 TTL / BFL<15 10.967

[0377] Table 60

[0378]

[0379]

[0380] The aberration in the twelfth example is as follows Fig.36 shown. Fig.37 The RMS aperture radius diagram in the twelfth example is shown. According to the camera module 11 of the twelfth example, by making the lens parameters different from those of the first example, the degree of freedom in design of the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0381] [Thirteenth Example]

[0382] Next, we will describe how to apply specific values ​​to Fig.38 The thirteenth example of the camera module 11 is shown. In the thirteenth example, the first surface of the second lens L2 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 61 to 65.

[0383] Table 61

[0384] R D Nd vd 1.00E+18 1.026 Aperture stop 1.00E+18 -1.026 L1R1 3.527 1.438 1.557 68.164 L1R2 15.983 0.020 L2R1 6.705 0.300 1.682 19.362 L2R2 4.973 0.169 L3R1 10.382 0.431 1.673 20.082 L3R2 14.847 0.283 L4R1 -14.388 1.149 1.622 25.948 L4R2 -24.706 0.078 L5R1 -23.931 0.771 1.627 25.200 L5R2 -5.871 0.461 L6R1 -5.870 0.884 1.6654 20.35 L6R2 -9.225 0.144 L7R1 -12.858 0.638 1.5767 33.43 L7R2 -8.076 1.003 L8R1 -10.570 0.450 1.6127 27.68 L8R2 -16.715 0.143 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.373

[0385] Table 62

[0386] FL 6.734 Fno 1.38 Perspective 84.01 TTL(INF) 9.070 Sensor size 12.492 FB 0.708

[0387] Table 63

[0388] L1 7.80 L2 -16.19 L3 25.97 L4 -83.07 L5 30.77 L6 -24.11 L7 7.29 L8 -5.57

[0389] Table 64

[0390] Conditional Expressions Example 13 Fno<2.2 1.38 HFOV<45 42.00 vd1>45 68.16 vd6<40 20.35 vd1-vd2>10 48.80 0.3<F1 / FL<4.3 1.158 0.5<|F8 / FL|<1.1 0.827 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.183 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 2.287 2.5<∑FL / F(i)<5.0 4.251 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.697 <![CDATA[5<TTL / D L6 <28]]> 10.261 0<(R3+R4) / (R3-R4)<10.0 2.999 0<(R9+R10) / (R9-R10)<3.5 1.631 -16<(R7+R8) / (R7-R8)<2 -2.730 -10<(R11+R12) / (R11-R12)<0 -2.404 0<R13 / R14<4.0 2.516 Nd2<1.75 1.682 Nd4<1.75 1.622 Nd6<1.75 1.665 200<∑vd(i)<380 240.21 TTL / ImgH<2.5 1.452 TTL / FL<2.0 1.347 TTL / BFL<15 12.809

[0391] Table 65

[0392]

[0393]

[0394] The aberration in the thirteenth example is as follows Fig.39 shown. Fig.40The RMS aperture radius diagram in the thirteenth example is shown. According to the camera module 11 of the thirteenth example, by making the lens parameters different from those of the first example, the degree of freedom in design of the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0395] [Example 14]

[0396] Next, we will describe how to apply specific values ​​to Fig.41 The fourteenth example of the camera module 11 shown. Unlike the first and second examples, in the fourteenth example, the sixth lens L6 has a positive refractive power, and the seventh lens L7 has a negative refractive power. In the fourteenth example, the first surface of the second lens L2 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 66 to 70.

[0397] Table 66

[0398] R D Nd vd 1.00E+18 1.258 Aperture stop 1.00E+18 -1.258 L1R1 3.339 1.614 1.547 67.740 L1R2 15.360 0.020 L2R1 11.714 0.300 1.659 20.768 L2R2 5.920 0.285 L3R1 11.067 0.677 1.678 19.690 L3R2 12.711 0.344 L4R1 -10.501 0.300 1.684 19.246 L4R2 -23.737 0.049 L5R1 -23.259 1.044 1.563 43.838 L5R2 -5.194 0.519 L6R1 -6.106 0.441 1.6839 19.25 L6R2 -8.273 0.642 L7R1 -4.564 0.880 1.6070 25.55 L7R2 -5.719 0.725 L8R1 -9.726 0.450 1.5454 53.59 L8R2 -14.242 0.106 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.470

[0399] Table 67

[0400] FL 7.396 Fno 1.38 Perspective 78.70 TTL(INF) 9.200 Sensor size 12.492 FB 0.804

[0401] Table 68

[0402] L1 7.42 L2 -17.18 L3 42.44 L4 -84.26 L5 24.68 L6 28.14 L7 -871.44 L8 -6.52

[0403] Table 69

[0404] Conditional Expressions Example 14 Fno<2.2 1.38 HFOV<45 39.35 vd1>45 67.74 vd6<40 19.25 vd1-vd2>10 46.97 0.3<F1 / FL<4.3 1.003 0.5<|F8 / FL|<1.1 0.881 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.062 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.313 2.5<∑|FL / F(i)|<5.0 3.396 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.753 <![CDATA[5<TTL / D L6 <28]]> 20.862 0<(R3+R4) / (R3-R4)<10.0 2.997 0<(R9+R10) / (R9-R10)<3.5 1.581 -16<(R7+R8) / (R7-R8)<2 -2.832 -10<(R11+R12) / (R11-R12)<0 -4.675 0<R13 / R14<4.0 0.837 Nd2<1.75 1.659 Nd4<1.75 1.684 Nd6<1.75 1.684 200<∑vd(i)<380 269.67 TTL / ImgH<2.5 1.473 TTL / FL<2.0 1.244 TTL / BFL<15 11.444

[0405] Table 70

[0406]

[0407]

[0408] The aberration in the fourteenth example is as follows Fig.42 shown. Fig.43 The RMS aperture radius diagram in the fourteenth example is shown. According to the camera module 11 of the fourteenth example, by making the lens parameters different from those of the first example, the degree of freedom in design of the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0409] [Example 15]

[0410] Next, we will describe how to apply specific values ​​to Fig.44The fifteenth example of the camera module 11 shown. Unlike the first and second examples, the third lens L3 in the fifteenth example has a negative refractive power. In the fifteenth example, the second surface of the first lens L1 has a non-rotationally symmetric aspherical shape. The lens parameters corresponding to the lens parameters in the first example are shown in Tables 71 to 75.

[0411] Table 71

[0412] R D Nd vd 1.00E+18 1.246 Aperture stop 1.00E+18 -1.246 L1R1 3.385 1.517 1.557 68.294 L1R2 17.480 0.020 L2R1 10.340 0.300 1.684 19.252 L2R2 5.499 0.327 L3R1 12.508 0.560 1.666 20.312 L3R2 11.432 0.415 L4R1 -10.567 0.300 1.683 19.322 L4R2 -26.199 0.015 L5R1 187.898 1.004 1.681 19.462 L5R2 -5.083 0.643 L6R1 -4.687 0.400 1.6838 19.25 L6R2 -16.913 0.527 L7R1 -9.714 1.017 1.5377 56.05 L7R2 -4.838 0.824 L8R1 -11.398 0.450 1.5657 42.47 L8R2 -16.039 0.086 IRCF 1.00E+18 0.334 1.5200 64.20 1.00E+18 0.448

[0413] Table 72

[0414] FL 7.292 Fno 1.38 Perspective 79.50 TTL(INF) 9.188 Sensor size 12.492 FB 0.782

[0415] Table 73

[0416] L1 7.14 L2 -19.61 L3 -383.41 L4 -40.78 L5 13.82 L6 -78.72 L7 14.86 L8 -5.99

[0417] Table 74

[0418] Conditional Expressions Example 15 Fno<2.2 1.38 HFOV<45 39.75 vd1>45 68.29 vd6<40 19.25 vd1-vd2>10 49.04 0.3<F1 / FL<4.3 0.979 0.5<|F8 / FL|<1.1 0.822 <![CDATA[0.8<F L1-L5 / FL<1.4]]> 1.046 <![CDATA[0.5<|F L6-L8 / F L1-L5 |<3.9]]> 1.405 2.5<∑|FL / F(i)|<5.0 3.919 <![CDATA[0.4<D L6-L8 / ImgH<1.0]]> 0.779 <![CDATA[5<TTL / D L6 <28]]> 22.970 0<(R3+R4) / (R3-R4)<10.0 3.211 0<(R9+R10) / (R9-R10)<3.5 0.933 -16<(R7+R8) / (R7-R8)<2 -2.183 -10<(R11+R12) / (R11-R12)<0 -1.820 0<R13 / R14<4.0 1.924 Nd2<1.75 1.684 Nd4<1.75 1.683 Nd6<1.75 1.684 200<∑vd(i)<380 264.40 TTL / ImgH<2.5 1.471 TTL / FL<2.0 1.260 TTL / BFL<15 11.745

[0419] Table 75

[0420]

[0421]

[0422] The aberration in the fifteenth example is as follows Fig.45 shown. Fig.46 The RMS aperture radius diagram in the fifteenth example is shown. According to the camera module 11 of the fifteenth example, by making the lens parameters different from those of the first example, the degree of freedom in design of the camera module 11 can be further improved while obtaining the same effects as those of the first example.

[0423] In the description of the embodiments of the present disclosure, it is understood that terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "interior", "exterior", "clockwise" and "counterclockwise" should be interpreted as referring to the direction or position described or shown in the drawings discussed. These relative terms are only used to simplify the description of the present disclosure and do not indicate or imply that the equipment or elements mentioned must have a specific orientation, or must be constructed or operated in a specific orientation. Therefore, these terms cannot be used to limit the present disclosure.

[0424] In addition, the terms such as "first" and "second" used in this document are for descriptive purposes and are not intended to indicate or imply relative importance or significance, nor are they intended to imply the number of technical features indicated. Therefore, features defined as "first" and "second" may include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means "two or more".

[0425] In the description of the embodiments of the present disclosure, unless otherwise specified or limited, the terms "installed", "connected", "coupled", etc. are used broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical or electrical connection; it may be a direct connection or an indirect connection via an intermediate structure; it may also be internal communication between two elements that can be understood by those skilled in the art according to the specific circumstances.

[0426] In the embodiments of the present disclosure, unless otherwise specified or limited, the structure of a first feature being "above" or "below" a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other but are in contact via an additional feature formed therebetween. In addition, a first feature being "above", "above" or "on top of" a second feature may include an embodiment in which the first feature is orthogonally or obliquely "above", "above" or "on top of" the second feature, or simply means that the height of the first feature is higher than the height of the second feature; and a first feature being "below", "below" or "under" a second feature may include an embodiment in which the first feature is orthogonally or obliquely "below", "below" or "under" the second feature, or simply means that the height of the first feature is lower than the height of the second feature.

[0427] Various embodiments and examples are provided in the above description to realize different structures of the present disclosure. In order to simplify the present disclosure, certain elements and settings are described above. However, these elements and settings are only used as examples and are not intended to limit the present disclosure. In addition, figure numerals and / or figure letters may be repeated in different examples of the present disclosure. This repetition is for simplification and clarity, and does not involve the relationship between different embodiments and / or settings. In addition, the present disclosure provides examples of different processes and materials. However, it will be appreciated by those skilled in the art that other processes and / or materials may also be applied.

[0428] References throughout this specification to "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a specific example," or "some examples" mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Thus, the appearance of the above phrases throughout this specification does not necessarily refer to the same embodiment or example of the present disclosure. Furthermore, particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0429] Any process or method described in the flow chart or described in other ways herein can be understood as including one or more modules, fragments or partial codes of executable instructions for implementing the specific logical functions or steps in the process. The scope of the preferred embodiments of the present disclosure includes other implementations, wherein those skilled in the art will appreciate that the functions can be implemented in sequences other than the sequences shown or discussed, including being implemented in substantially the same sequence or being implemented in the opposite sequence.

[0430] The logic and / or steps otherwise described herein or shown in the flowchart, for example, a specific sequence list of executable instructions for implementing a logical function, can be specifically implemented in any computer-readable medium to be used by or in conjunction with an instruction execution system, device or apparatus (e.g., a computer-based system, a system including a processor, or other system capable of obtaining instructions from an instruction execution system, device, and apparatus that executes instructions). As for the specification, a "computer-readable medium" can be any device suitable for containing, storing, communicating, propagating, or transmitting a program to be used by or in conjunction with an instruction execution system, device, or apparatus. More specific examples of computer-readable media include, but are not limited to: an electronic connection with one or more lines (electronic devices), a portable computer peripheral (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, because, for example, the paper or other suitable medium can be optically scanned and then edited, decrypted or processed by other suitable methods if necessary to obtain the program electronically, which can then be stored in a computer memory.

[0431] It should be understood that each part of the present disclosure can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory, and can be executed by an appropriate instruction execution system. For example, if the multiple steps or methods are implemented by hardware, in another embodiment, these steps or methods can be implemented by one or a combination of the following technologies known in the art: a discrete logic circuit with a logic gate circuit for implementing the logic function of a data signal, a dedicated integrated circuit with an appropriate combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0432] Those skilled in the art will appreciate that all or part of the steps in the exemplary method described above can be implemented by using program commands to related hardware. The program can be stored in a computer-readable storage medium, and when running on a computer, the program includes a combination of one or more steps in the method implementation scheme of the present disclosure.

[0433] In addition, each functional unit of the embodiment of the present disclosure can be integrated in a processing module, or these units can be physically independent, or two or more units are integrated in a processing module. The integrated module can be implemented in hardware form or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, the integrated module can be stored in a computer-readable storage medium.

[0434] The above storage medium may be a read-only memory, a disk, a CD, etc.

[0435] While embodiments of the present disclosure have been shown and described, those skilled in the art will appreciate that these embodiments are illustrative and are not to be construed as limiting the present disclosure, and that changes, modifications, substitutions, and variations may be made to the embodiments without departing from the scope of the present disclosure.

Claims

1. An imaging lens assembly, comprising, from the object side,: a first lens having positive refractive power and a convex surface facing the object side; Second lens; The third lens; The fourth lens; a fifth lens having positive refractive power; The sixth lens; The seventh lens; as well as an eighth lens having negative refractive power and having a concave shape near the optical axis on the surface on the object side; The imaging lens assembly includes an aperture stop, which is arranged closer to the object than at least one of the first to eighth lenses. wherein at least one lens arranged closer to the image than the aperture stop has a non-rotationally symmetric aspherical surface, The imaging lens assembly is configured to satisfy: Fno<2.2, HFOV<45°, νd1>45, νd6<40, νd1-νd2>10, Among them, Fno is the F number of the imaging lens assembly, HFOV is the half viewing angle of the imaging lens assembly corresponding to the diagonal length of the effective pixel area of ​​the imaging surface, νd1 is the Abbe number of the first lens, νd2 is the Abbe number of the second lens, and νd6 is the Abbe number of the sixth lens.

2. The imaging lens assembly according to claim 1, wherein: The imaging lens assembly is configured to satisfy: 0.3 <F1 / FL<4.3, 0.5<|F8 / FL|<1.1, 0.8<F L1-L5 / FL<1.4, Wherein, FL is the focal length of the imaging lens assembly, F1 is the focal length of the first lens, F8 is the focal length of the eighth lens, and F L1-L5 is the combined focal length of the first to fifth lenses.

3. The imaging lens assembly according to claim 1, wherein: The imaging lens assembly is configured to satisfy: 0.5<|F L6-L8 / F L1-L5 |<3.9, 2.5<Σ|FL / F(i)|<5.0, Where FL is the focal length of the imaging lens assembly, F L1-L5 is the combined focal length of the first lens to the fifth lens, F L6-L8 is the combined focal length of the sixth lens to the eighth lens, F(i) is the focal length of the i-th lens, and the value range of i is 1 to 8.

4. The imaging lens assembly according to claim 1, wherein: The imaging lens assembly is configured to satisfy: 0.4<D L6-L8 / ImgH<1.0, 5<TTL / D L6 <28, Among them, D L6-L8 is the length between the object side surface of the sixth lens and the image side surface of the eighth lens on the optical axis, ImgH is the half diagonal length of the effective pixel area of ​​the imaging surface, TTL is the length from the object side surface of the first lens to the focus of the imaging lens assembly on the optical axis, D L6 is the length between the object-side surface and the image-side surface of the sixth lens on the optical axis.

5. The imaging lens assembly according to claim 1, wherein: The imaging lens assembly is configured to satisfy: 0<(R3+R4) / (R3-R4)<10.0, 0<(R9+R10) / (R9-R10)<3.5, Among them, R3 is the curvature radius of the object side surface of the second lens, R4 is the curvature radius of the image side surface of the second lens, R9 is the curvature radius of the object side surface of the fifth lens, and R10 is the curvature radius of the image side surface of the fifth lens.

6. The imaging lens assembly according to claim 1, wherein: The imaging lens assembly is configured to satisfy: -16<(R7+R8) / (R7-R8)<2, -10<(R11+R12) / (R11-R12)<0, 0 <R13 / R14<4.0, Among them, R7 is the curvature radius of the object side surface of the fourth lens, R8 is the curvature radius of the image side surface of the fourth lens, R11 is the curvature radius of the object side surface of the sixth lens, R12 is the curvature radius of the image side surface of the sixth lens, R13 is the curvature radius of the object side surface of the seventh lens, and R14 is the curvature radius of the image side surface of the seventh lens.

7. The imaging lens assembly of claim 1, wherein: The imaging lens assembly is configured to satisfy: Nd2<1.75, Nd4<1.75, Nd6<1.75, 200<Σνd(i)<380, Wherein, Nd2 is the refractive index of the second lens at the d-line, Nd4 is the refractive index of the fourth lens at the d-line, Nd6 is the refractive index of the sixth lens at the d-line, νd(i) is the Abbe number of the i-th lens, and the value range of i is 1 to 8.

8. The imaging lens assembly of claim 1, wherein: The imaging lens assembly is configured to satisfy: TTL / ImgH<2.5, TTL / FL<2.0, TTL / BFL<15, Wherein, TTL is the length from the object side surface of the first lens to the focus of the imaging lens assembly on the optical axis, ImgH is the half diagonal length of the effective pixel area of ​​the imaging surface, and BFL is the distance from the object side surface of the filter arranged between the imaging lens assembly and the imaging surface to the imaging surface.

9. The imaging lens assembly of claim 1, wherein: The non-rotationally symmetric aspherical surface is symmetric with respect to an X-axis orthogonal to the optical axis and a Y-axis orthogonal to the X-axis and the optical axis.

10. The imaging lens assembly of claim 1, wherein: The eighth lens has an aspherical shape with an inflection point and is made of plastic.

11. The imaging lens assembly of claim 1 , wherein: The second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has negative refractive power, the sixth lens has negative refractive power, and the seventh lens has positive refractive power.

12. The imaging lens assembly of claim 1, wherein: The second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has positive refractive power, the sixth lens has positive refractive power, and the seventh lens has positive refractive power.

13. The imaging lens assembly of claim 1, wherein: The second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has negative refractive power, the sixth lens has positive refractive power, and the seventh lens has positive refractive power.

14. The imaging lens assembly of claim 1, wherein: The second lens has positive refractive power, the third lens has positive refractive power, the fourth lens has negative refractive power, the sixth lens has negative refractive power, and the seventh lens has positive refractive power.

15. The imaging lens assembly of claim 1, wherein: The second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has positive refractive power, the sixth lens has negative refractive power, and the seventh lens has positive refractive power.

16. The imaging lens assembly of claim 1, wherein: The second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has negative refractive power, the sixth lens has positive refractive power, and the seventh lens has negative refractive power.

17. The imaging lens assembly of claim 1, wherein: The second lens has negative refractive power, the third lens has negative refractive power, the fourth lens has negative refractive power, the sixth lens has negative refractive power, and the seventh lens has positive refractive power.

18. The imaging lens assembly of claim 1, wherein: The aperture stop is disposed closer to the object than an image-side surface of the first lens.

19. A camera module, comprising: The imaging lens assembly according to any one of claims 1 to 18; and An image sensor includes the imaging surface.

20. The camera module according to claim 19, wherein: The camera module includes an optical filter disposed between the imaging lens assembly and the image sensor.

21. An imaging device comprising: The camera module according to claim 19 or 20; and A housing for accommodating the camera module.

Images