A high-pixel, large-aperture miniaturized ADAS lens

Abstract

The application provides a high-pixel, large-aperture and miniaturized ADAS lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially and spaced apart along an optical axis from an object side to an image side, and the object side or the image side of the third lens is provided with a diaphragm; the optical power of the first lens and the sixth lens is negative, the optical power of the fourth lens, the fifth lens and the seventh lens is positive, and the optical power of the second lens and the third lens is opposite. By arranging the seven lenses and reasonably configuring the optical power of each lens and the shape of each lens surface, the optical system can have a large field of view, and can also correct distortion and chromatic aberration, so that the high-pixel performance of the ADAS lens is realized, and the imaging quality of the lens in a low-light environment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and in particular to a miniaturized ADAS lens with high pixels and large aperture. Background Art

[0002] With rising living standards, cars have become an indispensable means of transportation, leading to a growing focus on driving safety and comfort. With the continuous development of the industry, various driver-assistance features have emerged, raising expectations for smarter driving. For example, ADAS cameras are required to be able to identify objects at greater distances and clearly identify them even in low-light conditions. Currently, most ADAS cameras on the market have a resolution of 2MP or 5MP, with apertures of F2.0 or higher. This results in poor image clarity and imaging quality in dim conditions. Summary of the Invention

[0003] The present invention proposes a miniaturized ADAS lens with high pixels and large aperture, which solves the problem of low imaging clarity of ADAS lenses in poor lighting conditions in the prior art.

[0004] The technical solution of the present invention is achieved as follows:

[0005] A miniaturized ADAS lens with high pixels and a large aperture. The optical system of the lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens, which are sequentially spaced along the optical axis from the object side to the image side. The object side or the image side of the third lens is provided with an aperture. The first and sixth lenses have negative optical powers, the fourth, fifth, and seventh lenses have positive optical powers, and the second lens has an opposite optical power to the third lens.

[0006] By setting the first lens to have a negative optical power, the present invention can ensure that the optical system has a larger field of view angle and also has the function of correcting distortion; by setting the fourth lens to have a positive optical power, it can focus light; by setting the fifth lens and the sixth lens to have a combination of positive and negative optical powers, it can correct chromatic aberration; setting the above-mentioned optical power combination is conducive to achieving high pixel performance of ADAS lenses and improving the imaging quality of the lens in low-light environments.

[0007] As a preferred solution of the present invention, the object-side surface of the first lens is convex, and the image-side surface is concave; the object-side surface of the second lens is concave, and the image-side surface is either convex or concave; the object-side surface of the third lens is convex, and the image-side surface is either convex or concave; the object-side surface of the fourth lens is convex, and the image-side surface is convex; the object-side surface of the fifth lens is convex, and the image-side surface is convex; the object-side surface of the sixth lens is concave, and the image-side surface is either convex or concave; the object-side surface of the seventh lens is convex, and the image-side surface is concave; the above-mentioned surface shape design facilitates the above-mentioned optical power matching method to improve imaging quality.

[0008] As a preferred solution of the present invention, the first lens and the seventh lens are aspherical lenses. By setting the first lens as an aspherical lens, the front port diameter of the lens can be reduced, the size of the lens can be reduced, and distortion can be corrected at the same time. By setting the seventh lens as an aspherical lens, aberration can be corrected. The entire optical system uses two aspherical lenses, which can achieve high-pixel imaging while controlling production costs.

[0009] As a preferred solution of the present invention, the optical powers of different lenses in the optical system meet the following conditions:

[0010] -0.526≤φ1 / φ≤-0.324;

[0011] -1.104≤φ2 / φ≤0.123;

[0012] -0.238≤φ3 / φ≤0.887;

[0013] 0.619≤φ4 / φ≤1.005;

[0014] -0.426≤(φ5+φ6) / φ≤0.103;

[0015] 0.015≤φ7 / φ≤0.319;

[0016] Among them, φ1 is the optical focal power of the first lens, φ2 is the optical focal power of the second lens, φ3 is the optical focal power of the third lens, φ4 is the optical focal power of the fourth lens, φ5 is the optical focal power of the fifth lens, φ6 is the optical focal power of the sixth lens, φ7 is the optical focal power of the seventh lens, and φ is the optical focal power of the entire optical system of the lens; by constraining the optical focal power of each lens within the above range, it is convenient to improve the imaging quality of the lens in a low-light environment, help to correct tolerances, and ensure process assembly.

[0017] As a preferred solution of the present invention, the refractive index and Abbe number of different lenses in the optical system meet the following conditions:

[0018] 1.71≤n1≤1.92, 33.70≤v1≤49.30;

[0019] 1.62≤n2≤2.14, 13.20≤v2≤58.80;

[0020] 1.63≤n3≤1.98, 16.55≤v3≤39.95;

[0021] 1.67≤n4≤1.90, 43.10≤v4≤65.90;

[0022] 1.48≤n5≤1.60, 50.00≤v5≤86.00;

[0023] 1.65≤n6≤1.85, 16.95≤v6≤37.85;

[0024] 1.54≤n7≤1.69, 37.70≤v7≤65.30;

[0025] Wherein, n1 to n7 are the refractive indices of the first to seventh lenses, respectively, and v1 to v7 are the Abbe numbers of the first to seventh lenses, respectively.

[0026] As a preferred solution of the present invention, the total length TTL of the optical system and the optical target surface IC satisfy: TTL / IC≤3.587. By limiting the total length of the optical system and the target surface within the above range, it can be ensured that the lens meets the performance requirements of small volume and large target surface.

[0027] As a preferred solution of the present invention, the ratio of the focal length f of the optical system to the entrance pupil diameter ENPD satisfies: 1.3≤f / ENPD≤1.6; the clear aperture RYIO of the aperture and the entrance pupil diameter ENPD of the optical system satisfy: RYIO / ENPD>0.668; by limiting the focal length of the optical system, the clear aperture of the aperture and the entrance pupil diameter within the above range, it can be ensured that the lens meets the large aperture requirement.

[0028] Beneficial effects

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) The present invention provides seven lenses and rationally configures the focal length of each lens and the shape of each mirror surface, thereby effectively correcting the distortion and chromatic aberration of the optical system, increasing the field of view angle and aperture, and improving the imaging clarity of the lens in low-light environments;

[0031] (2) The present invention can correct the distortion and aberration of the optical system by setting the first lens and the seventh lens as aspherical lenses, while also reducing the size of the lens and lowering the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic structural diagram of a high-pixel, large-aperture miniaturized ADAS lens according to Example 1 of the present invention;

[0034] Figure 2 : is a ray fan diagram of the lens in Example 1 of the present invention;

[0035] Figure 3 : is an axial aberration curve diagram of the lens in Example 1 of the present invention;

[0036] Figure 4 : is a field curvature distortion diagram of the lens in Example 1 of the present invention;

[0037] Figure 5 This is a schematic structural diagram of a high-pixel, large-aperture miniaturized ADAS lens according to embodiment 2 of the present invention;

[0038] Figure 6 : is a ray fan diagram of the lens in Example 2 of the present invention;

[0039] Figure 7 : is an axial aberration curve diagram of the lens in Example 2 of the present invention;

[0040] Figure 8 : is a field curvature distortion diagram of the lens in Example 2 of the present invention;

[0041] Figure 9 This is a schematic structural diagram of a high-pixel, large-aperture miniaturized ADAS lens according to embodiment 3 of the present invention;

[0042] Figure 10 : is a ray fan diagram of the lens in Example 3 of the present invention;

[0043] Figure 11 : is an axial aberration curve diagram of the lens in Example 3 of the present invention;

[0044] Figure 12 : is a field curvature distortion diagram of the lens in Example 3 of the present invention;

[0045] In the figure: 1, first lens; 2, second lens; 3, third lens; 4, fourth lens; 5, fifth lens; 6, sixth lens; 7, seventh lens; 8, aperture. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] Example 1

[0048] Reference Figure 1 As shown, this embodiment provides a miniaturized ADAS lens with high pixels and large aperture. The optical system of the lens includes a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, and a seventh lens 7, which are sequentially arranged along the optical axis from the object side to the image side. A stop 8 is provided between the third lens 3 and the fourth lens 4. The optical and physical parameters of the first lens 1 to the seventh lens 7 are shown in Table 1 below:

[0049] Table 1 Optical physical parameters of the first to seventh lenses

[0050] Serial number Surface type Radius of curvature thickness Materials (nd) Material (vd) Semi-diameter K-Factor 1 Aspheric 6.0254 2.5265 1.90 35.00 5.3905 -2.1132 2 Aspheric 3.2752 2.3438 3.9978 -0.8328 3 spherical surface -14.1641 3.8000 1.92 32.00 3.6000 0.0000 4 spherical surface 28.4310 2.6633 1.66 38.00 3.8601 0.0000 5 spherical surface -9.6467 0.5764 3.9069 0.0000 6 PL Infinity -0.1001 3.3052 0.0000 7 spherical surface 9.0188 2.3474 1.80 55.00 3.6695 0.0000 8 spherical surface -90.2229 3.1429 3.4791 0.0000 9 spherical surface 10.5790 2.6589 1.49 83.00 2.5000 0.0000 10 spherical surface -4.7558 1.1996 1.67 26.00 3.0512 0.0000 11 spherical surface -80.0000 1.6053 3.4819 0.0000 12 Aspheric 10.2125 3.0229 1.68 40.00 4.2850 -24.1485 13 Aspheric 9.8231 1.1464 4.4930 2.5702 14 spherical surface Infinity 0.6000 1.516797 64.212351 4.4356 0.0000 15 spherical surface Infinity 0.0478 4.4110 0.0000 16 Infinity 0.0000 4.1080 0.0000

[0051] The numbers in Table 1 are numbered according to the order of the surfaces of each lens, where "1" represents the front surface of the first lens, "2" represents the back surface of the first lens, and so on; "6" represents the aperture; "14" and "15" represent the front and back surfaces of the filter, respectively; and "16" represents the imaging surface of the lens. The radius of curvature represents the degree of curvature of the lens surface, with a positive value indicating that the surface is curved toward the image plane and a negative value indicating that the surface is curved toward the object plane. "PL" indicates that the surface is flat, and "Infinity" indicates that the radius of curvature is infinite. The thickness represents the distance from the current surface to the center axis of the next surface. The refractive index represents the refractive index of the material between the current surface and the next surface. A blank space represents the current position as air, with a refractive index of 1. The Abbe number represents the dispersion properties of the material between the current surface and the next surface. A blank space represents the current position as air, with a refractive index of 1.

[0052] The aspheric surface shape equation Z in Table 1 above satisfies:

[0053] Z=cy 2 / {1+√[1-(1+K)c 2 y 2 ]}+Ay 4 +By 6 +Cy 8 +Dy 10 +Ey 12 +Fy 14

[0054] Where Z is the distance from the aspheric surface vertex to the aspheric surface at a height of y along the optical axis; c = 1 / R, R represents the paraxial curvature radius of the mirror; K is the cone coefficient; A, B, C, D, E, and F are high-order aspheric coefficients. The high-order aspheric coefficient data are shown in Table 2 below:

[0055] Table 2 High-order aspheric coefficients

[0056]

[0057] The optical system parameters of the lens in this embodiment are shown in Table 3 below:

[0058] Table 3 Optical system parameters of the lens

[0059]

[0060]

[0061] In this embodiment, the optical system composed of the above lenses has a focal length of 7.0 mm, an aperture of 1.6, a total length of the system of 27.58 mm, and a diagonal field of view of 103.46°.

[0062] Figure 2 The ray fan diagram of the lens in this embodiment shows that the imaging range of light of different wavelengths (0.436μm, 0.486μm, 0.546μm, 0.588μm, and 0.656μm) at different field angles of view of this lens is all within 30μm, and the curves are very concentrated, ensuring that the aberrations in different field areas are small, which also shows that this lens effectively corrects the aberrations of the optical system.

[0063] Figure 3 : The axial aberration curve of the lens in this embodiment can be seen from the figure. The spherical aberration of the optical lens at different wavelengths (0.436μm, 0.486μm, 0.546μm, 0.588μm and 0.656μm) is within 0.03mm. The curves at different wavelengths are relatively concentrated, indicating that the axial aberration of the optical lens is very small. Therefore, it can be seen that the optical lens provided by the embodiment of the present invention can better correct aberrations.

[0064] Figure 4The figure below is a diagram of the field curvature distortion of the lens in this embodiment. In the left-hand coordinate system, the horizontal coordinate represents the magnitude of the field curvature, in mm; the vertical coordinate represents the normalized image height, without units. T represents the meridian, and S represents the arc loss. As can be seen from the figure, the optical lens provided in this embodiment effectively controls the field curvature from light with a wavelength of 0.436 μm to light with a wavelength of 0.656 μm. That is, when imaging, the difference in image quality between the center and the periphery is small. In the right-hand coordinate system, the horizontal coordinate represents the magnitude of the distortion, in %, and the vertical coordinate represents the normalized image height, without units. As can be seen from the figure, the distortion of the optical lens provided in this embodiment is well corrected, and the imaging distortion is small, meeting the low distortion requirement.

[0065] Example 2

[0066] Reference Figure 5 As shown, this embodiment provides a miniaturized ADAS lens with high pixels and large aperture. The optical system of the lens includes a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, and a seventh lens 7, which are arranged in sequence from the object side to the image side along the optical axis. The difference from the above-mentioned embodiment 1 is that an aperture 8 is provided between the second lens 2 and the third lens 3. The optical and physical parameters of the first lens 1 to the seventh lens 7 are shown in Table 4 below:

[0067] Table 4 Optical physical parameters of the first to seventh lenses

[0068]

[0069]

[0070] The meaning of each parameter in Table 4 refers to Example 1, and the serial number "5" is the aperture; in this embodiment, the high-order aspheric coefficient data are shown in the following Table 5:

[0071] Table 5 High-order aspheric coefficients

[0072]

[0073] The optical system parameters of the lens in this embodiment are shown in Table 6 below:

[0074] Table 6 Optical system parameters of the lens

[0075]

[0076]

[0077] In this embodiment, the optical system composed of the above lenses has a focal length of 6.96 mm, an aperture of 1.4, a total length of the system of 26.98 mm, and a diagonal field of view of 103.64°.

[0078] Figure 6 The ray fan diagram of the lens in this embodiment shows that the imaging range of light of different wavelengths (0.436μm, 0.486μm, 0.546μm, 0.588μm, and 0.656μm) at different field angles of view of this lens is all within 30μm, and the curves are very concentrated, ensuring that the aberrations in different field areas are small, which also shows that this lens effectively corrects the aberrations of the optical system.

[0079] Figure 7 : The axial aberration curve of the lens in this embodiment can be seen from the figure. The spherical aberration of the optical lens at different wavelengths (0.436μm, 0.486μm, 0.546μm, 0.588μm and 0.656μm) is within 0.03mm. The curves at different wavelengths are relatively concentrated, indicating that the axial aberration of the optical lens is very small. Therefore, it can be seen that the optical lens provided by the embodiment of the present invention can better correct aberrations.

[0080] Figure 8 The figure below is a diagram of the field curvature distortion of the lens in this embodiment. In the left-hand coordinate system, the horizontal coordinate represents the magnitude of the field curvature, in mm; the vertical coordinate represents the normalized image height, without units. T represents the meridian, and S represents the arc loss. As can be seen from the figure, the optical lens provided in this embodiment effectively controls the field curvature from light with a wavelength of 0.436 μm to light with a wavelength of 0.656 μm. That is, when imaging, the difference in image quality between the center and the periphery is small. In the right-hand coordinate system, the horizontal coordinate represents the magnitude of the distortion, in %, and the vertical coordinate represents the normalized image height, without units. As can be seen from the figure, the distortion of the optical lens provided in this embodiment is well corrected, and the imaging distortion is small, meeting the low distortion requirement.

[0081] Example 3

[0082] Reference Figure 9 As shown, this embodiment provides a miniaturized ADAS lens with high pixels and large aperture. The optical system of the lens includes a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, and a seventh lens 7, which are arranged in sequence from the object side to the image side along the optical axis. A stop 8 is provided between the second lens 2 and the third lens 3. The difference from the above-mentioned embodiments 1 and 2 is that the optical and physical parameters of the first lens 1 to the seventh lens 7 are shown in Table 7 below:

[0083] Table 7 Optical physical parameters of the first to seventh lenses

[0084] Serial number Surface type Radius of curvature thickness Materials (nd) Material (vd) Semi-diameter K-Factor 1 Aspheric 5.9872 2.1475 1.73 48.00 5.5445 -1.3490 2 Aspheric 3.6335 2.3771 4.2610 -0.9739 3 spherical surface -13.9987 2.0942 2.10 17.00 3.8000 0.0000 4 spherical surface 18.9498 0.5789 4.1261 0.0000 5 spherical surface 27.9781 2.8510 1.95 18.50 4.2356 0.0000 6 spherical surface -11.5918 -0.1001 4.3238 0.0000 7 PL Infinity 1.7148 3.8839 0.0000 8 spherical surface 9.5959 4.5837 1.69 64.00 4.4539 0.0000 9 spherical surface -26.8334 0.1000 4.0007 0.0000 10 spherical surface 11.2709 3.5667 1.55 53.00 3.4000 0.0000 11 spherical surface -5.8203 1.2000 1.73 22.00 3.7111 0.0000 12 spherical surface 13.1540 1.4324 3.8957 0.0000 13 Aspheric 7.3856 4.9206 1.65 46.00 4.6497 -12.3262 14 Aspheric 10.3479 0.2719 4.8379 -27.6562 15 spherical surface Infinity 0.6000 1.516797 64.212351 4.7305 0.0000 16 spherical surface Infinity 0.5375 4.5990 0.0000 17 Infinity 0.0000 4.1148 0.0000

[0085] The meanings of the parameters in Table 7 refer to Example 1; serial number "7" is the aperture; serial numbers "15" and "16" are the front and rear surfaces of the filter, respectively; serial number "17" is the imaging surface of the lens;

[0086] In this embodiment, the high-order aspheric coefficient data are shown in Table 8 below:

[0087] Table 8 High-order aspheric coefficients

[0088]

[0089]

[0090] The optical system parameters of the lens in this embodiment are shown in Table 6 below:

[0091] Table 6 Optical system parameters of the lens

[0092] Example 3 Lower limit Upper limit φ1 / φ -0.341 -0.526 -0.324 φ2 / φ -1.002 -1.104 0.123 φ3 / φ 0.793 -0.238 0.887 φ4 / φ 0.651 0.619 1.005 (Φ5+φ6) / φ -0.382 -0.426 0.103 Φ7 / φ 0.294 0.015 0.319 n1 1.73 1.71 1.92 n2 2.10 1.62 2.14 n3 1.95 1.63 1.98 n4 1.69 1.67 1.90 n5 1.55 1.48 1.60 n6 1.73 1.65 1.85 n7 1.65 1.54 1.69 v1 48.0 33.70 49.30 v2 17.0 13.20 58.80 v3 18.5 16.55 39.95 v4 64.0 43.10 65.90 v5 53.0 50.00 86.00 V6 22.0 16.95 37.85 v7 46.0 37.70 65.30 TTL / IC 3.564 3.587 <![CDATA[RY IO / ENPD]]> 0.721 0.668

[0093] In this embodiment, the optical system composed of the above lenses has a focal length of 7.0 mm, an aperture of 1.3, a total length of the system of 28.87 mm, and a diagonal field of view of 103.61°.

[0094] Figure 10 The ray fan diagram of the lens in this embodiment shows that the imaging range of light of different wavelengths (0.436μm, 0.486μm, 0.546μm, 0.588μm, and 0.656μm) at different field angles of view of this lens is all within 30μm, and the curves are very concentrated, ensuring that the aberrations in different field areas are small, which also shows that this lens effectively corrects the aberrations of the optical system.

[0095] Figure 11 : The axial aberration curve of the lens in this embodiment can be seen from the figure. The spherical aberration of the optical lens at different wavelengths (0.436μm, 0.486μm, 0.546μm, 0.588μm and 0.656μm) is within 0.03mm. The curves at different wavelengths are relatively concentrated, indicating that the axial aberration of the optical lens is very small. Therefore, it can be seen that the optical lens provided by the embodiment of the present invention can better correct aberrations.

[0096] Figure 12The figure below is a diagram of the field curvature distortion of the lens in this embodiment. In the left-hand coordinate system, the horizontal coordinate represents the magnitude of the field curvature, in mm; the vertical coordinate represents the normalized image height, without units. T represents the meridian, and S represents the arc loss. As can be seen from the figure, the optical lens provided in this embodiment effectively controls the field curvature from light with a wavelength of 0.436 μm to light with a wavelength of 0.656 μm. That is, when imaging, the difference in image quality between the center and the periphery is small. In the right-hand coordinate system, the horizontal coordinate represents the magnitude of the distortion, in %, and the vertical coordinate represents the normalized image height, without units. As can be seen from the figure, the distortion of the optical lens provided in this embodiment is well corrected, and the imaging distortion is small, meeting the low distortion requirement.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A miniaturized ADAS lens with high pixel count and large aperture, characterized by: The optical system of the lens comprises a first lens (1), a second lens (2), a third lens (3), a fourth lens (4), a fifth lens (5), a sixth lens (6) and a seventh lens (7) which are sequentially arranged along the optical axis from the object side to the image side, and a stop (8) is provided on the object side or the image side of the third lens (3); the optical power of the first lens (1) and the sixth lens (6) is negative, the optical power of the fourth lens (4), the fifth lens (5) and the seventh lens (7) is positive, and the optical power of the second lens (2) is opposite to that of the third lens (3); The optical powers of different lenses in the optical system meet the following conditions: -0.526≤φ1 / φ≤-0.324; -1.104≤φ2 / φ≤0.123; -0.238≤φ3 / φ≤0.887; 0.619≤φ4 / φ≤1.005; -0.426≤(φ5+φ6) / φ≤0.103; 0.015≤φ7 / φ≤0.319; Wherein, φ1 is the optical focal power of the first lens (1), φ2 is the optical focal power of the second lens (2), φ3 is the optical focal power of the third lens (3), φ4 is the optical focal power of the fourth lens (4), φ5 is the optical focal power of the fifth lens (5), φ6 is the optical focal power of the sixth lens (6), φ7 is the optical focal power of the seventh lens (7), and φ is the optical focal power of the entire optical system of the lens.

2. The high-pixel, large-aperture miniaturized ADAS lens according to claim 1, characterized in that: The object side surface of the first lens (1) is convex, and the image side surface is concave; the object side surface of the second lens (2) is concave, and the image side surface is either convex or concave; the object side surface of the third lens (3) is convex, and the image side surface is either convex or concave; the object side surface of the fourth lens (4) is convex, and the image side surface is convex; the object side surface of the fifth lens (5) is convex, and the image side surface is convex; the object side surface of the sixth lens (6) is concave, and the image side surface is either convex or concave; the object side surface of the seventh lens (7) is convex, and the image side surface is concave.

3. The high-pixel, large-aperture miniaturized ADAS lens according to claim 1, characterized in that: The first lens (1) and the seventh lens (7) are aspherical lenses.

4. The high-pixel, large-aperture miniaturized ADAS lens according to claim 1, wherein: The refractive index and Abbe number of different lenses in the optical system satisfy the following conditions: 1.71≤n1≤1.92, 33.70≤v1≤49.30; 1.62≤n2≤2.14, 13.20≤v2≤58.80; 1.63≤n3≤1.98, 16.55≤v3≤39.95; 1.67≤n4≤1.90, 43.10≤v4≤65.90; 1.48≤n5≤1.60, 50.00≤v5≤86.00; 1.65≤n6≤1.85, 16.95≤v6≤37.85; 1.54≤n7≤1.69, 37.70≤v7≤65.30; Wherein, n1 to n7 are the refractive indices of the first lens (1) to the seventh lens (7), and v1 to v7 are the Abbe numbers of the first lens (1) to the seventh lens (7).

5. The high-pixel, large-aperture miniaturized ADAS lens according to claim 1, wherein: The total length TTL of the optical system and the optical target surface IC satisfy: TTL / IC≤3.

587.

6. The high-pixel, large-aperture miniaturized ADAS lens according to claim 1, wherein: The ratio of the focal length f of the optical system to the entrance pupil diameter ENPD satisfies: 1.3≤f / ENPD≤1.

6.

7. The high-pixel, large-aperture miniaturized ADAS lens according to claim 1, characterized in that: The clear aperture RYIO of the diaphragm (8) and the entrance pupil diameter ENPD of the optical system satisfy the following conditions: RYIO / ENPD>0.668.

Images