High-pixel and small-volume optical system and camera module for its application

Abstract

The embodiment of the present invention discloses a high-pixel small-volume optical system, which includes the first lens to the ninth lens in sequence from the object plane to the image plane along the optical axis; wherein the object plane sides of the first lens and the second lens are both convex, and the image plane sides are both concave, and their optical power is negative; the object plane sides of the third lens and the sixth lens are both convex, and their optical power is positive; the image plane side of the fourth lens is concave, and its optical power is negative; the image plane side of the fifth lens is convex, and its optical power is positive; the object plane side of the seventh lens is convex, and the image plane side is convex, and its optical power is positive; the object plane side of the eighth lens is concave, and the image plane side is convex, and its optical power is negative; the object plane side of the ninth lens is concave, and its optical power is negative. On the other hand, the embodiment of the present invention also provides a camera module. The embodiment of the present invention is mainly composed of 9 lenses, with a reasonable number of lenses, ingenious structure, and has the advantages of small size and light weight.

Description

Technical field:

[0001] The present invention relates to an optical system and a camera module using the same, in particular to a high-pixel and small-volume optical system and a camera module using the same. Background technology:

[0002] With the increasing application of high-resolution technology, especially the widespread application of high-pixel lenses, a series of similar lens products have appeared on the market, but they have the defects of large number of lenses, large size, small target surface and insufficient pixels. Summary of the invention:

[0003] In order to overcome the problem of large number of lenses and large volume in existing high-pixel lens products, an embodiment of the present invention provides a high-pixel and small-volume optical system.

[0004] A high-pixel and small-volume optical system, comprising, along an optical axis from an object plane to an image plane, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens;

[0005] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0006] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0007] The object side of the third lens is convex and its optical power is positive;

[0008] The image side of the fourth lens is concave and its optical power is negative;

[0009] The image side of the fifth lens is convex and its optical power is positive;

[0010] The object side of the sixth lens is convex and its optical power is positive;

[0011] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0012] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0013] The object side of the ninth lens is concave and its optical power is negative.

[0014] On the other hand, an embodiment of the present invention further provides a camera module.

[0015] A camera module comprises at least an optical lens, in which the above-mentioned high-pixel and small-volume optical system is installed.

[0016] The optical system and camera module of the embodiment of the present invention are mainly composed of 9 lenses. The number of lenses is reasonable, the structure is ingenious, and it has the advantages of small size and light weight. Different lenses are combined with each other and the optical focal length is reasonably distributed. It has good performance such as 48 million high pixels and large target area, and is suitable for fields such as sports cameras and drones. Description of the drawings:

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0018] Figure 1 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 1 ;

[0019] Figure 2 It is a MTF transfer function curve diagram of the lens optical system or camera module embodiment of the present invention;

[0020] Figure 3 is a relative illumination diagram of a lens optical system or a camera module embodiment of the present invention;

[0021] Figure 4 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 2 ;

[0022] Figure 5 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 3 ;

[0023] Figure 6 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 4 ;

[0024] Figure 7 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 5 ;

[0025] Figure 8 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 6 ;

[0026] Fig. 9 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 7 ;

[0027] Fig.10 The structure of the lens optical system or camera module embodiment of the present invention is schematically shown. Figure 8 . Specific implementation method:

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] When the embodiments of the present invention mention ordinal numbers such as "first" and "second", unless they do express the meaning of order according to the context, they should be understood as being merely for the purpose of distinction.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] A high-pixel and small-volume optical system includes, along an optical axis, from an object plane to an image plane, a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, and a ninth lens 9.

[0032] The object side of the first lens 1 is convex, the image side is concave, and its optical power is negative;

[0033] The object side of the second lens 2 is convex, the image side is concave, and its optical power is negative;

[0034] The object side of the third lens 3 is convex and its optical power is positive;

[0035] The image side of the fourth lens 4 is concave, and its optical power is negative;

[0036] The image side of the fifth lens 5 is convex and its optical power is positive;

[0037] The object side of the sixth lens 6 is convex, and its optical power is positive;

[0038] The seventh lens element 7 has a convex object surface and a convex image surface, and its optical power is positive;

[0039] The object side of the eighth lens 8 is concave, the image side is convex, and its optical power is negative;

[0040] The object surface side of the ninth lens element 9 is a concave surface, and its refractive power is negative.

[0041] The optical system of the embodiment of the present invention is mainly composed of 9 lenses. The number of lenses is reasonable, the structure is ingenious, and it has the advantages of small size and light weight. Different lenses are combined with each other and the optical focal length is reasonably distributed. It has good performance such as 48 million high pixels and large target surface, and is suitable for fields such as sports cameras and drones.

[0042] Further, as another preferred embodiment of the present invention but not limiting, as Figure 1 As shown,

[0043] The object side of the first lens 1 is convex, the image side is concave, and its optical power is negative;

[0044] The object side of the second lens 2 is convex, the image side is concave, and its optical power is negative;

[0045] The object side of the third lens 3 is convex, the image side is convex, and its optical power is positive;

[0046] The object side of the fourth lens 4 is convex, the image side is concave, and its optical power is negative;

[0047] The object side of the fifth lens 5 is concave, the image side is convex, and its optical power is positive;

[0048] The object side of the sixth lens 6 is convex, the image side is convex, and its optical power is positive;

[0049] The seventh lens element 7 has a convex object surface and a convex image surface, and its optical power is positive;

[0050] The object side of the eighth lens 8 is concave, the image side is convex, and its optical power is negative;

[0051] The object side and image side of the ninth lens element 9 are concave, and its refractive power is negative.

[0052] Further, as another preferred embodiment of the present invention but not limiting, as Figure 4 As shown,

[0053] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0054] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0055] The object side of the third lens is convex, the image side is flat, and its optical power is positive;

[0056] The object side of the fourth lens is convex, the image side is concave, and its optical power is negative;

[0057] The fifth lens has a concave surface on the image side and a convex surface on the image side, and its optical power is positive;

[0058] The sixth lens has a convex object side and a convex image side, and its optical power is positive;

[0059] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0060] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0061] The object side of the ninth lens is concave, the image side is concave, and its optical power is negative.

[0062] Furthermore, as another preferred embodiment of the present invention but not limiting, Figure 5 As shown,

[0063] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0064] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0065] The object side of the third lens is convex, the image side is concave, and its optical power is positive;

[0066] The object side of the fourth lens is convex, the image side is concave, and its optical power is negative;

[0067] The object side of the fifth lens is concave, the image side is convex, and its optical power is positive;

[0068] The sixth lens has a convex object side and a convex image side, and its optical power is positive;

[0069] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0070] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0071] The object side of the ninth lens is concave, the image side is concave, and its optical power is negative.

[0072] Furthermore, as another preferred embodiment of the present invention but not limiting, Figure 6 As shown,

[0073] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0074] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0075] The object side of the third lens is convex, the image side is convex, and its optical power is positive;

[0076] The object side of the fourth lens is concave, the image side is concave, and its optical power is negative;

[0077] The object side of the fifth lens is concave, the image side is convex, and its optical power is positive;

[0078] The sixth lens has a convex object side and a convex image side, and its optical power is positive;

[0079] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0080] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0081] The object side of the ninth lens is concave, the image side is concave, and its optical power is negative.

[0082] Further, as another preferred embodiment of the present invention but not limiting, as Figure 7 As shown,

[0083] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0084] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0085] The object side of the third lens is convex, the image side is convex, and its optical power is positive;

[0086] The object side of the fourth lens is concave, the image side is concave, and its optical power is negative;

[0087] The fifth lens has a convex object side and a convex image side, and its optical power is positive;

[0088] The sixth lens has a convex object side and a convex image side, and its optical power is positive;

[0089] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0090] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0091] The object side of the ninth lens is concave, the image side is concave, and its optical power is negative.

[0092] Furthermore, as another preferred embodiment of the present invention but not limiting, Figure 8 As shown,

[0093] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0094] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0095] The object side of the third lens is convex, the image side is convex, and its optical power is positive;

[0096] The object side of the fourth lens is convex, the image side is concave, and its optical power is negative;

[0097] The fifth lens has a convex object side and a convex image side, and its optical power is positive;

[0098] The sixth lens has a convex object side and a convex image side, and its optical power is positive;

[0099] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0100] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0101] The object side of the ninth lens is concave, the image side is convex, and its optical power is negative.

[0102] Furthermore, as another preferred embodiment of the present invention but not limiting, Fig. 9 As shown,

[0103] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0104] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0105] The object side of the third lens is convex, the image side is convex, and its optical power is positive;

[0106] The object side of the fourth lens is concave, the image side is concave, and its optical power is negative;

[0107] The object side of the fifth lens is concave, the image side is convex, and its optical power is positive;

[0108] The object side of the sixth lens is convex, the image side is concave, and its optical power is positive;

[0109] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0110] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0111] The object side of the ninth lens is concave, the image side is concave, and its optical power is negative.

[0112] Further, as another preferred embodiment of the present invention but not limiting, as Fig.10 As shown,

[0113] The object side of the first lens is convex, the image side is concave, and its optical power is negative;

[0114] The object side of the second lens is convex, the image side is concave, and its optical power is negative;

[0115] The object side of the third lens is convex, the image side is convex, and its optical power is positive;

[0116] The object side of the fourth lens is convex, the image side is concave, and its optical power is negative;

[0117] The object side of the fifth lens is concave, the image side is convex, and its optical power is positive;

[0118] The object side of the sixth lens is convex, the image side is concave, and its optical power is positive;

[0119] The seventh lens has a convex object side and a convex image side, and its optical power is positive;

[0120] The object side of the eighth lens is concave, the image side is convex, and its optical power is negative;

[0121] The object side of the ninth lens is concave, the image side is convex, and its optical power is negative.

[0122] Further, as another preferred embodiment of the present invention but not limiting, the seventh lens and the eighth lens are glued together to form a combined lens, which has a simple structure and a compact size, and can ensure good optical performance.

[0123] Furthermore, as another preferred embodiment of the present invention but not limiting, each lens of the optical system satisfies the following conditions:

[0124] (1)-0.52 <f / f1<-0.21;

[0125] (2)-0.35 <f / f2<-0.19;

[0126] (3)0.13 <f / f3<0.22;

[0127] (4)-0.20 <f / f4<-0.08;

[0128] (5)0.18 <f / f5<0.09;

[0129] (6)0.33 <f / f6<0.67;

[0130] (7)-0.028 <f / f78<0;

[0131] (8)-0.43 <f / f9<-0.12;

[0132] Among them, f is the focal length of the entire optical system, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f5 is the focal length of the fifth lens, f6 is the focal length of the sixth lens, f78 is the focal length of the combined lens formed by gluing the seventh lens and the eighth lens, and f9 is the focal length of the 9th lens. By combining different lenses and reasonably distributing the optical power, it has good performance such as 48 million high pixels and a large target surface.

[0133] Further, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd1 of the material of the first lens 1, the Abbe number Vd1 of the material, the focal length f1 and the focal length f of the optical system satisfy: Nd1 > 1.88, Vd1 < 42, -0.52 < f / f1 < -0.21. The structure is simple and good optical performance can be guaranteed.

[0134] Still further, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd2 of the material of the second lens 2, the Abbe number Vd2 of the material, the focal length f2 and the focal length f of the optical system satisfy: Nd2 < 1.63, Vd2 > 63, -0.35 < f / f2 < -0.19. The structure is simple and good optical performance can be guaranteed.

[0135] Furthermore, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd3 of the material of the third lens 3, the Abbe number Vd3 of the material, the focal length f3 and the focal length f of the optical system satisfy: Nd3 > 2.0, Vd3 < 28, 0.13 < f / f3 < 0.22. The structure is simple and good optical performance can be guaranteed.

[0136] Further, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd4 of the material of the fourth lens 4, the Abbe number Vd4 of the material, the focal length f4 and the focal length f of the optical system satisfy: Nd4 > 1.90, Vd4 < 24, -0.20 < f / f4 < -0.08. The structure is simple and good optical performance can be guaranteed.

[0137] Still further, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd5 of the material of the fifth lens 5, the Abbe number Vd5 of the material, the focal length f5 and the focal length f of the optical system satisfy: Nd5 < 1.50, Vd5 > 80, 0.18 < f / f5 < 0.09. The structure is simple and good optical performance can be guaranteed.

[0138] Furthermore, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd6 of the material of the sixth lens 6, the Abbe number Vd6 of the material, and the focal length f6 and the focal length f of the optical system satisfy: Nd6 < 1.62, Vd6 > 63, 0.33 < f / f6 < 0.67. The structure is simple and good optical performance can be ensured.

[0139] Still further, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd7 of the material of the seventh lens 7 and the Abbe number Vd7 of the material satisfy: Nd7 < 1.60, Vd7 > 68; the refractive index Nd8 of the material of the eighth lens 8 and the Abbe number Vd8 of the material satisfy: Nd8 > 2.0, Vd8 < 28; the focal length f78 of the combined lens formed after gluing the seventh lens and the eighth lens and the focal length f of the optical system satisfy: -0.028 < f / f78 < 0. The structure is simple and compact, and good optical performance can be ensured.

[0140] Yet further, as another preferred embodiment of the present invention rather than a limitation, the refractive index Nd9 of the material of the ninth lens 9, the Abbe number Vd9 of the material, and the focal length f9 and the focal length f of the optical system satisfy: Nd9 < 1.62, Vd9 > 63, -0.43 < f / f9 < -0.12. The structure is simple and good optical performance can be ensured.

[0141] Furthermore, as another preferred embodiment of the present invention rather than a limitation, the aperture stop 10 is located between the sixth lens 6 and the seventh lens 7, closer to the seventh lens side. It is used to adjust the intensity of the light beam.

[0142] Still further, as another preferred embodiment of the present invention rather than a limitation, the second lens 2, the fifth lens 5, the sixth lens 6, and the ninth lens 9 are glass aspherical lenses. It can ensure the long-term reliability requirements and service life of the lens, and has traditional advantages such as small volume, low cost, and easy processing.

[0143] Still further, as a preferred embodiment of the present invention rather than a limitation, the effective focal length f of the optical system is 2.96 mm, the vertical field of view angle DFOV is 150°, and the overall optical length TTL is 26 mm. Specifically, the basic parameters of this optical system are shown in the following table:

[0144]

[0145]

[0146] In the above table, along the optical axis from the object plane to the image plane 11, S1 and S2 correspond to the two surfaces of the first lens 1; S3 and S4 correspond to the two surfaces of the second lens 2; S5 and S6 correspond to the two surfaces of the third lens 3; S7 and S8 correspond to the two surfaces of the fourth lens 4; S9 and S10 correspond to the two surfaces of the fifth lens 5; S11 and S12 correspond to the two surfaces of the sixth lens 6; STO is the position of the aperture 10; S14 and S15 correspond to the two surfaces of the seventh lens 7; S15 and S16 correspond to the two surfaces of the eighth lens 8; S17 and S18 correspond to the two surfaces of the ninth lens 9; S19 is the image plane 11.

[0147] Furthermore, as a preferred embodiment of the present invention but not limiting, the second lens 2, the fifth lens 5, the sixth lens 6, and the ninth lens 9 are glass aspherical lenses, which satisfy the following equation:

[0148]

[0149] Among them, parameter c=1 / R, which is the curvature corresponding to the radius, y is the radial coordinate, and its unit is the same as the lens length unit, k is the conic quadratic curve coefficient, and a1 to a8 are the coefficients corresponding to each radial coordinate. The aspheric surface related values ​​of the second lens 2, the fifth lens 5, the sixth lens 6, and the ninth lens 9 are shown in the following table:

[0150] K <![CDATA[α1]]> <![CDATA[α2]]> <![CDATA[α3]]> <![CDATA[α4]]> <![CDATA[α5]]> <![CDATA[α6]]> <![CDATA[α7]]> S3 14.00 0 3.2E-03 -4.5E-04 3.8E-05 -2.2E-06 7.5E-08 -1.4E-09 S4 -1.00 0 5.1E-03 -4.7E-04 3.7E-05 -9.1E-07 -7.0E-08 -4.4E-09 S9 0 0 1.4E-03 -7.8E-05 1.1E-05 -1.4E-06 7.2E-08 -1.6E-09 S10 1.00 0 -3.8E-04 1.2E-04 -2.2E-05 -1.8E-06 -7.6E-08 -1.8E-09 S11 -1.18 0 8.1E-05 -2.3E-06 -1.3E-05 -3.0E-06 2.8E-07 -2.2E-08 S12 0 0 -1.6E-03 -2.7E-04 -1.8E-05 -2.7E-07 5.5E-07 -5.6E-08 S17 0 0 -7.9E-03 1.3E-03 -4.1E-04 -1.1E-04 -2.2E-05 -2.4E-06 S18 0 0 -5.4E-03 -3.0E-04 1.8E-04 -3.5E-05 3.6E-06 -1.9E-07

[0151] from Figures 2 to 3 It can be seen that the optical system of this embodiment has good performance such as 48 million high pixels and large target surface.

[0152] A camera module comprises at least an optical lens, in which the above-mentioned high-pixel and small-volume optical system is installed.

[0153] The camera module of the embodiment of the present invention is mainly composed of 9 lenses. The number of lenses is reasonable, the structure is ingenious, and it has the advantages of small size and light weight. It uses different lenses to combine with each other and reasonably distribute the optical focal length. It has good performance such as 48 million high pixels and large target area, and is suitable for fields such as sports cameras and drones.

[0154] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of the present invention, or any technical deduction or replacement based on the concept of the present invention, shall be regarded as the protection scope of the present invention.

Claims

1. A high-pixel and small-volume optical system, which is composed of a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens in sequence from the object plane to the image plane along the optical axis; characterized in that: The object side of the first lens is convex, the image side is concave, and its optical power is negative; The object side of the second lens is convex, the image side is concave, and its optical power is negative; The object side of the third lens is convex and its optical power is positive; The image side of the fourth lens is concave and its optical power is negative; The image side of the fifth lens is convex and its optical power is positive; The object side of the sixth lens is convex and its optical power is positive; The seventh lens has a convex object side and a convex image side, and its optical power is positive; The object side of the eighth lens is concave, the image side is convex, and its optical power is negative; The object side of the ninth lens is concave and its optical power is negative; The seventh lens and the eighth lens are glued together to form a combined lens; Each lens of the optical system meets the following conditions: (1) -0.52<f / f1<-0.21; (2) -0.35<f / f2<-0.19; (3) 0.13<f / f3<0.22; (4) -0.20<f / f4<-0.08; (5) 0.18<f / f5<0.09; (6) 0.33<f / f6<0.67; (7) -0.028<f / f78<0; (8) -0.43<f / f9<-0.12; Among them, f is the focal length of the entire optical system, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f5 is the focal length of the fifth lens, f6 is the focal length of the sixth lens, f78 is the focal length of the combined lens formed by gluing the seventh lens and the eighth lens, and f9 is the focal length of the ninth lens.

2. The high-pixel and small-volume optical system according to claim 1, characterized in that: The material refractive index Nd1 and the material Abbe constant Vd1 of the first lens satisfy the following conditions: Nd1>1.88, Vd1<42.

3. The high-pixel and small-volume optical system according to claim 1, characterized in that: The material refractive index Nd2 and the material Abbe constant Vd2 of the second lens satisfy the following conditions: Nd2<1.63, Vd2>63.

4. The high-pixel and small-volume optical system according to claim 1, characterized in that: The material refractive index Nd3 and the material Abbe constant Vd3 of the third lens satisfy the following conditions: Nd3>2.0, Vd3<28.

5. The high-pixel and small-volume optical system according to claim 1, characterized in that: The material refractive index Nd4 and the material Abbe constant Vd4 of the fourth lens satisfy: Nd4>1.90, Vd4<24.

6. The high-pixel and small-volume optical system according to claim 1, characterized in that: The material refractive index Nd5 and the material Abbe constant Vd5 of the fifth lens satisfy: Nd5<1.50, Vd5>80.

7. The high-pixel and small-volume optical system according to claim 1, characterized in that: The refractive index Nd6 and the Abbe constant Vd6 of the material of the sixth lens satisfy the following conditions: Nd6<1.62, Vd6>63; and / or The material refractive index Nd7 and the material Abbe constant Vd7 of the seventh lens satisfy: Nd7<1.60, Vd7>68; the material refractive index Nd8 and the material Abbe constant Vd8 of the eighth lens satisfy: Nd8>2.0, Vd8<28; The material refractive index Nd9 and the material Abbe constant Vd9 of the ninth lens satisfy: Nd9<1.62, Vd9>63.

8. A camera module, comprising at least an optical lens, characterized in that: The optical lens is equipped with a high-pixel and small-volume optical system as described in any one of claims 1 to 7.

Images