Folding and super hybrid visible light pick-up lens and electronic equipment
Through the eight-piece design folding super-hybrid system, combining metasurface lenses and aspherical lenses, the problem of high-resolution imaging in the prior art is solved, and the miniaturization of the camera lens and high-resolution imaging effect is achieved.
Patent Information
- Application Number
- CN202510916298.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2025-08-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing camera lenses are limited by the combined processing technology and yield limitations of aspherical plastic lenses, making it difficult to achieve high-resolution imaging.
The eight-piece design is adopted, combining metasurface lenses and traditional aspherical lenses to build a folding super-hybrid system to achieve large aperture and low distortion and compress the overall optical length.
It realizes the miniaturization and thinness of the camera lens, and reduces the complexity of aspherical lenses while meeting the needs of high-resolution imaging.
Smart Images

Figure CN120469047A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of optical lenses, and in particular relates to a refractive-supermix visible light camera lens and electronic equipment. Background Art
[0002] With the development of science and technology and the improvement of people's living standards, the performance of electronic photosensitive elements has been greatly improved, and the demand for camera lenses has also become increasingly higher.
[0003] Current camera lenses often utilize a combination of aspheric plastic lenses, achieving high-resolution imaging through the combination of high-order aspheric surfaces. However, due to limitations in processing technology and yield, aspheric surface shapes are subject to numerous restrictions. Summary of the Invention
[0004] The present application provides a refractive-super hybrid visible light camera lens and an electronic device to at least solve the above technical problems existing in the prior art.
[0005] On the one hand, an embodiment of the present application provides a refractive-metasurface hybrid visible light camera lens, which includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens, which are arranged in sequence from the object plane to the image plane along the optical axis, wherein at least one lens is a metasurface lens, and the remaining lenses are aspherical lenses;
[0006] The lens meets the following requirements:
[0007]
[0008]
[0009] Where Fno is the aperture number, Imgh is the diagonal size of the imaging target surface, FOV is the diagonal field of view, TTL is the total length of the optical system, which is defined as the distance from the center of the optical axis of the object side of the first lens to the image plane, and f is the focal length.
[0010] In one embodiment, the lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens arranged in sequence along the optical axis from the object plane to the image plane; the fourth lens is a metasurface lens, and the first lens, the second lens, the third lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens are all aspherical lenses.
[0011] In one embodiment, the first lens is a lens with negative optical power, the object side surface is convex near the optical axis, and the image side surface is concave near the optical axis; the second lens is a lens with positive optical power, the object side surface is convex near the optical axis, and the image side surface is convex near the optical axis; the third lens is a lens with negative optical power, the object side surface is convex near the optical axis, and the image side surface is concave near the optical axis; the fourth lens is a metasurface lens with positive optical power, and both the object side and the image side surface have microstructures arranged The fifth lens is a lens with positive optical power, the object side surface is convex at the near optical axis, and the image side surface is convex / concave at the near optical axis; the sixth lens is a lens with negative optical power, the object side surface is convex at the near optical axis, and the image side surface is concave at the near optical axis; the seventh lens is a lens with positive optical power, the object side surface is convex at the near optical axis, and the image side surface is concave at the near optical axis; the eighth lens is a lens with negative optical power, the object side surface is concave at the near optical axis, and the image side surface is concave at the near optical axis.
[0012] In one embodiment, the fourth lens is made of glass.
[0013] In one possible implementation manner, the focal length of the lens satisfies: f≥5.5 mm.
[0014] In one possible implementation manner, the aperture number of the lens satisfies 1.6≤Fno≤2.4.
[0015] In one possible implementation manner, the field of view angle of the lens satisfies FOV≥80°.
[0016] In one embodiment, a stop is further included.
[0017] In one embodiment, a color filter is further included.
[0018] Another aspect of an embodiment of the present application provides an electronic device comprising any of the above-mentioned refractive-superhybrid visible light camera lenses.
[0019] Compared with the prior art, this application has the following advantages:
[0020] This application uses a hybrid refractive-super lens technology solution, achieving a large aperture and low distortion through an eight-piece design (seven traditional plastic lenses + one metalens). This solution effectively shortens the total optical length, making the system more compact and thinner, and reducing the complexity of the aspheric lens surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 Schematic diagram of the structure of the refractive-super hybrid visible light camera lens in Example 1 of the present application;
[0022] Figure 2 : is a schematic diagram of the MTF of the refractive super hybrid visible light camera lens in Example 1 of the present application;
[0023] Figure 3 Schematic diagram of the diffused spots of the refractive-super hybrid visible light camera lens in Example 1 of the present application;
[0024] Figure 4 Schematic diagram of the distortion of the refractive-super hybrid visible light camera lens in Example 1 of the present application;
[0025] Figure 5 Schematic diagram of the structure of the refractive-super hybrid visible light camera lens in Example 2 of the present application;
[0026] Figure 6 Schematic diagram of the MTF of the refractive super hybrid visible light camera lens in Example 2 of the present application;
[0027] Figure 7 Schematic diagram of the diffused spots of the refractive-super hybrid visible light camera lens in Example 2 of the present application;
[0028] Figure 8 Schematic diagram of the distortion of the refractive-super hybrid visible light camera lens in Example 2 of the present application;
[0029] Description of reference numerals:
[0030] 100, aperture; 110, first lens; 120, second lens; 130, third lens; 140, fourth lens; 150, fifth lens; 160, sixth lens; 170, seventh lens; 180, eighth lens; 190, imaging plane; 200, color filter. DETAILED DESCRIPTION
[0031] The present invention will be described in further detail below with reference to the accompanying drawings.
[0032] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.
[0033] The embodiment of the present invention discloses a refractive-metasurface hybrid visible light camera lens, which includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens, which are arranged in sequence along the optical axis from the object plane to the image plane, wherein at least one lens is a metasurface lens, and the remaining lenses are aspherical lenses;
[0034] The lens meets the following requirements:
[0035]
[0036]
[0037] Where Fno is the aperture number, Imgh is the diagonal size of the imaging target surface, FOV is the diagonal field of view, TTL is the total length of the optical system, which is defined as the distance from the center of the optical axis of the object side of the first lens to the image plane, and f is the focal length.
[0038] This application utilizes a refractive-super-hybrid technology solution, combining a metalens with a traditional aspheric lens to create an eight-piece design (seven traditional plastic lenses + one metalens), achieving both a large aperture and low distortion. This solution also effectively reduces the overall optical length, making the system smaller, thinner, and lighter, while also reducing the complexity of the aspheric lens surface.
[0039] In one embodiment, a refractive-hybrid visible light camera lens includes a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, a seventh lens 170, and an eighth lens 180, which are arranged in sequence along the optical axis from the object plane to the image plane.
[0040] Among them, at least one of the first lens 110 , the second lens 120 , the third lens 130 , the fourth lens 140 , the fifth lens 150 , the sixth lens 160 , the seventh lens 170 and the eighth lens 180 is a metasurface lens, and the remaining lenses are aspheric lenses.
[0041] Specifically, the material of the non-metasurface lens is plastic material, such as EP4000, EP5000, EP6000, EP7000, OKP4, APL5514, APL5014, etc., and the material of the metasurface lens is glass, such as Silica, D263TECO, etc.
[0042] In this embodiment, the metasurface lens consists of a substrate and a microstructure mounted on it. The microstructure is composed of an array of subwavelength-scale micro-nano units, each with a specific shape, size, and arrangement to precisely control the phase, amplitude, or polarization state of the incident light wave. Through this microstructural design, the metasurface lens achieves optical performance comparable to or even superior to that of traditional lenses, such as high transmittance, low chromatic aberration, and low distortion, while maintaining a lightweight and thin design.
[0043] In some preferred embodiments, the fourth lens 140 is a metasurface lens, and the first lens 110 , the second lens 120 , the third lens 130 , the fifth lens 150 , the sixth lens 160 , the seventh lens 170 and the eighth lens 180 are all aspherical lenses.
[0044] In one embodiment, the first lens 110 is a lens with negative optical power, wherein the object-side surface thereof is convex near the optical axis, and the image-side surface thereof is concave near the optical axis; both the object-side surface and the image-side surface of the first lens 110 are aspherical surfaces;
[0045] The second lens 120 is a lens with positive refractive power. Its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is convex. Both the object-side surface and the image-side surface of the second lens 120 are aspherical surfaces.
[0046] The third lens 130 is a lens with negative optical power. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both the object-side surface and the image-side surface of the third lens 130 are aspherical surfaces.
[0047] The fourth lens 140 is a metasurface lens with positive optical power, and has microstructures arranged on both the object-side and image-side surfaces;
[0048] The fifth lens element 150 is a lens with positive refractive power. Its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is convex / concave. Both the object-side surface and the image-side surface of the fifth lens element 150 are aspherical surfaces.
[0049] The sixth lens element 160 is a lens with negative optical power. Its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is concave. Both the object-side surface and the image-side surface of the sixth lens element 160 are aspherical surfaces.
[0050] The seventh lens element 170 is a lens with positive refractive power. The object-side surface of the seventh lens element 170 is convex near the optical axis, and the image-side surface of the seventh lens element 170 is concave near the optical axis. Both the object-side surface and the image-side surface of the seventh lens element 170 are aspherical surfaces.
[0051] The eighth lens element 180 is a lens with negative optical power. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both the object-side surface and the image-side surface of the eighth lens element 180 are aspherical surfaces.
[0052] In one embodiment, the refractive index hybrid lens further includes an aperture 100, which can be disposed between any two lenses, or before the first lens 110, or after the eighth lens 180. Preferably, the aperture 100 is disposed between the second lens 120 and the third lens 130.
[0053] In one embodiment, the hybrid lens further includes a color filter 200, which can be disposed before the first lens 110 or after the eighth lens 180. Preferably, the color filter 200 is disposed between the eighth lens 180 and the image plane 190.
[0054] like Figure 1As shown, the incident light enters from the object side of the first lens 110, and then passes through the second lens 120, the aperture 100, the third lens 130, the fourth lens 140, the fifth lens 150, the sixth lens 160, the seventh lens 170, and the eighth lens 180 in sequence, and finally converges on the imaging surface 190.
[0055] Example 1
[0056] For example, Table 1 describes in detail the specific optical data parameters of each lens in the refractive-super hybrid visible light camera lens provided by the embodiment of the present invention in a feasible implementation manner. The optical data parameters in Table 1 correspond to Figure 1 The refractive super hybrid visible light camera lens shown.
[0057] In this embodiment, the refractive-superhybrid visible light camera lens is provided with a first lens 110, a second lens 120, an aperture 100, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, a seventh lens 170 and an eighth lens 180 in sequence along the optical axis from the object plane to the image plane.
[0058] The first lens 110 is an aspheric lens with negative optical power, the object side surface of which is convex near the optical axis, and the image side surface of which is concave near the optical axis;
[0059] The second lens 120 is an aspheric lens with positive refractive power, and its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is also convex;
[0060] The third lens 130 is an aspheric lens with negative refractive power. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis.
[0061] The fourth lens 140 is a metasurface lens with positive optical power, and has microstructures arranged on both the object-side and image-side surfaces;
[0062] The fifth lens 150 is an aspheric lens with positive refractive power. Its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is also convex.
[0063] The sixth lens 160 is an aspheric lens with negative refractive power. Its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is concave.
[0064] The seventh lens element 170 is an aspheric lens with positive refractive power. The object-side surface thereof is convex near the optical axis, and the image-side surface thereof is concave near the optical axis.
[0065] The eighth lens 180 is an aspheric lens with negative refractive power. The object-side surface thereof is concave near the optical axis, and the image-side surface thereof is concave near the optical axis.
[0066] Table 1
[0067]
[0068]
[0069] The surface numbers are numbered according to the order of the surfaces of each lens. For example, surface number 1 represents the object side of the first lens 110, surface number 2 represents the image side of the first lens 110, and so on. The radius of curvature represents the degree of curvature of the lens surface near the optical axis. A positive value indicates that the surface is curved toward the image side, a negative value indicates that the surface is curved toward the object side, and "Infinity" indicates that the surface is flat. The spacing represents the axial distance from the center of the current surface to the next surface. The units of the radius of curvature and spacing are both millimeters (mm). The value in the material column represents the refractive index of the corresponding lens material.
[0070] The even-order aspheric surface satisfies the following equation:
[0071]
[0072] Where z is the distance from the vertex of the even-order aspheric surface along the optical axis, r is the height from the optical axis, c is the curvature, c = 1 / R, R is the radius of curvature at the vertex of the lens; N is the number of polynomial coefficients in the series, k is the cone coefficient, and ai is the coefficient of the higher-order term of the aspheric surface.
[0073] For example, Table 2 describes in detail the conic coefficient k and the higher-order coefficient ai of the aspheric lens surface in this embodiment in a feasible implementation manner.
[0074] Table 2
[0075]
[0076]
[0077] The binary face is expanded to increase the phase according to the following polynomial:
[0078]
[0079] where N is the number of polynomial coefficients in the series, Ai is the squared coefficient of ρ, ρ is the normalized radial aperture coordinate, and M is the diffraction order.
[0080] Exemplarily, Table 3 details the binary surface coefficients of the metasurface lens in this embodiment in a feasible implementation manner.
[0081] Table 3
[0082]
[0083]
[0084] Where R1 is the normalized radius of the binary surface.
[0085] In this embodiment, the aperture number, target surface size and total system length meet the requirements. The total length, field of view and focal length of the optical lens meet the requirements
[0086] The operating band of the refractive-super hybrid visible light camera lens provided in this embodiment is 430-650nm, the aperture number is 2.38, the focal length is 6.0mm, the total length is 7mm, the target surface size is 11.0mm, and the maximum full field of view angle is 84°, which meets the use requirements of the camera lens.
[0087] Figure 2 This is a schematic diagram of the modulation transfer function (MTF) of the refractive index super hybrid visible light camera lens provided in an embodiment of the present invention. The refractive index super hybrid visible light camera lens provided in an embodiment of the present invention has an MTF value ≥ 0.35 at 160lp / mm, which can be matched with conventional camera chips and meet the requirements of high-resolution imaging.
[0088] Figure 3 This is a schematic diagram of the diffused spots of the refractive-super hybrid visible light camera lens provided by an embodiment of the present invention. The refractive-super hybrid visible light camera lens provided by an embodiment of the present invention has a relatively concentrated and evenly distributed diffused pattern across the entire wavelength band, which can meet the requirements of high-resolution imaging.
[0089] Figure 4 This is a schematic diagram of the distortion of the refractive-super hybrid visible light camera lens provided by an embodiment of the present invention, which represents the distortion values corresponding to different fields of view, such as Figure 4 As shown, the refractive-super hybrid visible light camera lens provided by the embodiment of the present invention has a distortion of less than 3.5% in the entire field of view in the working band, and the overall distortion is small.
[0090] Example 2
[0091] For example, Table 4 describes in detail the specific optical data parameters of each lens in the refractive-super hybrid visible light camera lens provided by the embodiment of the present invention in a feasible implementation manner. The optical data parameters in Table 4 correspond to Figure 5 The refractive super hybrid visible light camera lens shown.
[0092] In this embodiment, the refractive-superhybrid visible light camera lens is provided with a first lens 110, a second lens 120, an aperture 100, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, a seventh lens 170, an eighth lens 180 and a color filter 190 in sequence along the optical axis from the object plane to the image plane.
[0093] The first lens 110 is an aspheric lens with negative optical power, the object side surface of which is convex near the optical axis, and the image side surface of which is concave near the optical axis;
[0094] The second lens 120 is an aspheric lens with positive refractive power, and its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is also convex;
[0095] The third lens 130 is an aspheric lens with negative refractive power. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis.
[0096] The fourth lens 140 is a metasurface lens with positive optical power, and has microstructures arranged on both the object-side and image-side surfaces;
[0097] The fifth lens 150 is an aspheric lens with positive refractive power. Its object-side surface near the optical axis is convex, and its image-side surface near the optical axis is concave.
[0098] The sixth lens 160 is an aspheric lens with negative refractive power, whose object-side surface near the optical axis is convex, and whose image-side surface near the optical axis is concave;
[0099] The seventh lens element 170 is an aspheric lens with positive refractive power. The object-side surface thereof is convex near the optical axis, and the image-side surface thereof is concave near the optical axis.
[0100] The eighth lens 180 is an aspheric lens with negative refractive power. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis.
[0101] Table 4
[0102] Surface number Face shape Curvature radius (mm) Spacing (mm) Material Diameter (mm) 1 EVENASPHERE 13.12 0.30 1.54 2.65 2 EVENASPHERE 9.69 0.04 2.41 3 EVENASPHERE 3.25 1.09 1.54 2.12 4 EVENASPHERE -38.24 0.00 1.94 5STOP STANDARD Infinity 0.10 1.86 6 EVENASPHERE 2.85 0.27 1.66 1.86 7 EVENASPHERE 2.09 0.72 1.79 8 BINARY2 Infinity 0.50 1.52 1.83 9 BINARY2 Infinity 0.06 1.99 10 EVENASPHERE 16.80 0.50 1.54 2.11 11 EVENASPHERE 69.53 0.54 2.17 12 EVENASPHERE 43.10 0.40 1.54 2.31 13 EVENASPHERE 21.41 0.22 2.55 14 EVENASPHERE 2.84 0.59 1.54 2.72 15 EVENASPHERE 5.44 1.10 3.45 16 EVENASPHERE -68.05 0.84 1.54 4.17 17 EVENASPHERE 3.48 0.31 4.55 18 STANDARD Infinity 0.21 1.52 5.30 19 STANDARD Infinity 0.34 5.36 20IMA STANDARD Infinity - 5.51
[0103] The surface numbers are numbered according to the order of the surfaces of each lens. For example, surface number 1 represents the object side of the first lens 110, surface number 2 represents the image side of the first lens 110, and so on. The radius of curvature represents the degree of curvature of the lens surface near the optical axis. A positive value indicates that the surface is curved toward the image side, a negative value indicates that the surface is curved toward the object side, and "Infinity" indicates that the surface is flat. The spacing represents the axial distance from the center of the current surface to the next surface. The units of the radius of curvature and spacing are both millimeters (mm). The value in the material column represents the refractive index of the corresponding lens material.
[0104] The even-order aspheric surface satisfies the following equation:
[0105]
[0106] Where z is the distance from the vertex of the even-order aspheric surface along the optical axis, r is the height from the optical axis, c is the curvature, c = 1 / R, R is the radius of curvature at the vertex of the lens; N is the number of polynomial coefficients in the series, k is the cone coefficient, and ai is the coefficient of the higher-order term of the aspheric surface.
[0107] For example, Table 5 describes in detail the conic coefficient k and the high-order coefficient ai of the aspheric lens surface in this embodiment in a feasible implementation manner.
[0108] Table 5
[0109]
[0110]
[0111] The binary face is expanded to increase the phase according to the following polynomial:
[0112]
[0113] where N is the number of polynomial coefficients in the series, Ai is the squared coefficient of ρ, ρ is the normalized radial aperture coordinate, and M is the diffraction order.
[0114] For example, Table 6 details the binary surface coefficients of the metasurface in this embodiment in a feasible implementation manner.
[0115] Table 6
[0116] Surface number R1 a1 a2 a3 8 1 -1.72E+02 -8.24E+00 1.70E+01 9 1 1.39E+02 2.62E+01 -2.74E+01 Surface number a4 a5 a6 a7 8 -1.70E+01 8.38E+00 -3.11E+00 5.60E-01 9 1.32E+01 -3.81E+00 6.28E-01 -5.96E-02 Surface number a8 a9 a10 a11 8 -1.26E-02 -3.80E-05 -2.03E-03 -3.29E-04 9 5.70E-03 -2.07E-03 -2.66E-04 2.88E-05 Surface number a12 a13 a14 a15 8 2.78E-05 2.05E-06 6.78E-07 4.19E-08 9 3.64E-06 3.43E-07 2.24E-08 -2.11E-08
[0117] Where R1 is the normalized radius of the binary surface.
[0118] In this embodiment, the aperture number, target surface size and total system length meet the requirements. The total length, field of view and focal length of the optical lens meet the requirements
[0119] The operating band of the refractive-super hybrid visible light camera lens provided in this embodiment is 430-650nm, the aperture number is 1.65, the focal length is 6.3mm, the total length is 8.1mm, the target surface size is 11.0mm, and the maximum full field of view angle is 80°, which meets the use requirements of the camera lens.
[0120] Figure 6 This is a schematic diagram of the modulation transfer function (MTF) of the refractive index super hybrid visible light camera lens provided in an embodiment of the present invention. The refractive index super hybrid visible light camera lens provided in an embodiment of the present invention has an MTF value ≥ 0.4 at 160lp / mm, which can be matched with conventional camera chips and meet the requirements of high-resolution imaging.
[0121] Figure 7 This is a schematic diagram of the diffused spots of the refractive-super hybrid visible light camera lens provided by an embodiment of the present invention. The refractive-super hybrid visible light camera lens provided by an embodiment of the present invention has a relatively concentrated and evenly distributed diffused pattern across the entire wavelength band, which can meet the requirements of high-resolution imaging.
[0122] Figure 8 This is a schematic diagram of the distortion of the refractive-super hybrid visible light camera lens provided by an embodiment of the present invention, which represents the distortion values corresponding to different fields of view, such as Figure 8 As shown, the refractive-super hybrid visible light camera lens provided by the embodiment of the present invention has a distortion of less than 3% in the entire field of view in the working band, and the overall distortion is small.
[0123] Example 1 and Example 2 respectively satisfy the relationship shown in Table 7 below:
[0124] Table 7
[0125]
[0126] An embodiment of the present invention further discloses an electronic device comprising any of the above-mentioned refractive-super-hybrid visible light camera lenses.
[0127] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.
Claims
1. A refractive-super hybrid visible light camera lens, characterized in that: A first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens are sequentially arranged along the optical axis from the object plane to the image plane, wherein at least one lens is a metasurface lens and the remaining lenses are aspherical lenses; The lens meets the following requirements: Where Fno is the aperture number, Imgh is the diagonal size of the imaging target surface, FOV is the diagonal field of view, TTL is the total length of the optical system, which is defined as the distance from the center of the optical axis of the object side of the first lens to the image plane, and f is the focal length.
2. The refractive-super hybrid visible light camera lens according to claim 1, characterized in that: The lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are arranged in sequence along the optical axis from the object plane to the image plane; The fourth lens is a metasurface lens, and the first lens, the second lens, the third lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens are all aspherical lenses.
3. The refractive-superhybrid visible light camera lens according to claim 2, characterized in that: The first lens is a lens with negative optical power, the object side surface of which is convex near the optical axis and the image side surface of which is concave near the optical axis; The second lens is a lens with positive refractive power, and its object side surface near the optical axis is convex, and its image side surface near the optical axis is also convex; The third lens is a lens with negative optical power, with a convex surface on the object side near the optical axis and a concave surface on the image side near the optical axis; The fourth lens is a metasurface lens with positive optical power, and both the object side and the image side thereof have microstructures arranged; The fifth lens is a lens with positive refractive power, the object side surface of which is convex near the optical axis, and the image side surface of which is convex / concave near the optical axis; The sixth lens is a lens with negative optical power, with a convex surface on the object side near the optical axis and a concave surface on the image side near the optical axis; The seventh lens is a lens with positive refractive power, the object side surface of which is convex near the optical axis, and the image side surface of which is concave near the optical axis; The eighth lens is a lens with negative optical power, and its object-side surface near the optical axis is concave, and its image-side surface near the optical axis is also concave.
4. The refractive-superhybrid visible light camera lens according to claim 2, characterized in that: The fourth lens is made of glass.
5. The refractive-super hybrid visible light camera lens according to claim 1, characterized in that: The focal length of the lens satisfies: f≥5.5mm.
6. The refractive-super hybrid visible light camera lens according to claim 1, characterized in that: The aperture number of the lens satisfies 1.6≤Fno≤2.
4.
7. The refractive-superhybrid visible light camera lens according to claim 1, characterized in that: The field of view angle of the lens satisfies FOV≥80°.
8. The refractive-superhybrid visible light camera lens according to claim 1, characterized in that: Also includes the aperture.
9. The refractive-superhybrid visible light camera lens according to claim 1, characterized in that: Also includes color filters.
10. Electronic equipment, characterized in that: The invention comprises any one of the refractive-super hybrid visible light camera lenses according to claims 1-9.
Citation Information
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