Camera lens assembly

[0049] Example 1

[0050] First refer to Figure 1 to Figure 5 The imaging lens group according to Embodiment 1 of the present application is described.

[0051] figure 1 It is a schematic diagram showing the structure of the imaging lens group of Embodiment 1. Such as figure 1 As shown, the camera lens group includes 5 lenses. The 5 lenses are a first lens E1 with an object side surface S1 and an image side surface S2, a second lens E2 with an object side surface S3 and an image side surface S4, a third lens E3 with an object side surface S5 and an image side surface S6, and a third lens E3 with an object side surface S5 and an image side surface S6. The fourth lens E4 of the side surface S7 and the image side surface S8, and the fifth lens E5 having the object side surface S9 and the image side surface S10. The first lens E1 to the fifth lens E5 are arranged in order from the object side to the image side of the imaging lens group. The aligning group includes a first lens and a second lens, and the fixed group includes a third lens, a fourth lens, and a fifth lens. The alignment group is adjustable in the direction perpendicular to the optical axis.

[0052] The first lens E1 may have a positive refractive power, and its object side surface S1 may be a convex surface, and the image side surface S2 may be a concave surface.

[0053] The second lens E2 may have a negative refractive power, and the object side surface S3 may be a convex surface, and the image side surface S4 may be a concave surface.

[0054] The third lens E3 may have a negative refractive power, and the object side surface S5 may be a convex surface, and the image side surface S6 may be a concave surface.

[0055] The fourth lens E4 may have a negative refractive power, and the object side surface S7 may be a convex surface, and the image side surface S8 may be a concave surface.

[0056] The fifth lens E5 may have negative refractive power, and its object side surface S9 may be concave, and the image side surface S10 may be convex.

[0057] The imaging lens group also includes a filter E6 having an object side surface S11 and an image side surface S12 for filtering infrared light. In this embodiment, light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.

[0058] In this embodiment, the first lens E1 to the fifth lens E5 have respective effective focal lengths f1 to f5. The first lens E1 to the fifth lens E5 are arranged in sequence along the optical axis and jointly determine the total effective focal length f of the camera lens group. Table 1 below shows the effective focal lengths f1 to f5 of the first lens E1 to the fifth lens E5, the total effective focal length f of the camera lens group, the total length of the camera lens group TTL (mm), and the maximum field angle of the camera lens group Half of HFOV.

[0059]

[0060]

[0061] Table 1

[0062] Table 2 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the imaging lens group in this embodiment, wherein the units of the radius of curvature and the thickness are millimeters (mm).

[0063]

[0064] Table 2

[0065] In this embodiment, each lens can be an aspheric lens, and each aspheric surface type x is defined by the following formula:

[0066]

[0067] Among them, x is the distance vector height of the aspheric surface at a height h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c=1/R (that is, the paraxial curvature c is the above table The reciprocal of the radius of curvature R in 1); k is the conic coefficient (given in Table 2); Ai is the correction coefficient of the i-th order of the aspheric surface.

[0068] Table 3 below shows the coefficient A of the higher order term of each aspheric surface S1-S10 of each aspheric lens that can be used in this embodiment 4 , A 6 , A 8 , A 10 , A 12 And A 14.

[0069] Face number

[0070] table 3

[0071] figure 2 The on-axis chromatic aberration curve of the imaging lens group of Example 1 is shown, which indicates the deviation of the focus point of light of different wavelengths after passing through the optical system. image 3 The astigmatism curve of the imaging lens group of Example 1 is shown, which represents meridional field curvature and sagittal field curvature. Figure 4 The distortion curve of the imaging lens group of Embodiment 1 is shown, which represents the magnitude of distortion under different viewing angles. Figure 5 The chromatic aberration curve of magnification of the imaging lens group of Example 1 is shown, which represents the deviation of different image heights on the imaging surface after light passes through the imaging lens group. To sum up and refer to Figure 2 to Figure 5 It can be seen that the camera lens group according to Embodiment 1 can realize the core adjustment function in a grouped manner, thereby improving the module manufacturing yield and shortening the AF time.

[0072] Example 2

[0073] The following reference Figure 6 to Figure 10 The imaging lens group according to Embodiment 2 of the present application is described.

[0074] Image 6 It is a schematic diagram showing the structure of the imaging lens group of Embodiment 2. Such as Image 6 As shown, the camera lens group includes 6 lenses. The 6 lenses are a first lens E1 with an object side S1 and an image side S2, a second lens E2 with an object side S3 and an image side S4, a third lens E3 with an object side S5 and an image side S6, and a third lens E3 with an object side S5 and an image side S6. The fourth lens E4 of the side surface S7 and the image side surface S8, the fifth lens E5 having the object side surface S9 and the image side surface S10, and the sixth lens E6 having the object side surface S11 and the image side surface S12. The first lens E1 to the sixth lens E6 are arranged in order from the object side to the image side of the imaging lens group. The aligning group includes a first lens, a second lens and a third lens, and the fixed group includes a fourth lens, a fifth lens and a sixth lens. The alignment group is adjustable in the direction perpendicular to the optical axis.

[0075] The first lens E1 may have a positive refractive power, and its object side surface S1 may be a convex surface, and the image side surface S2 may be a concave surface.

[0076] The second lens E2 may have a negative refractive power, and the object side surface S3 may be a convex surface, and the image side surface S4 may be a concave surface.

[0077] The third lens E3 may have a positive refractive power, and the object side surface S5 may be a convex surface, and the image side surface S6 may be a concave surface.

[0078] The fourth lens E4 may have a positive refractive power, and the object side surface S7 may be convex, and the image side surface S8 may be convex.

[0079] The fifth lens E5 may have a positive refractive power, and the object side surface S9 may be convex, and the image side surface S10 may be convex.

[0080] The sixth lens E6 may have a negative refractive power, and the object side surface S11 may be a convex surface, and the image side surface S12 may be a concave surface.

[0081] The camera lens group also includes a filter E7 having an object side surface S13 and an image side surface S14 for filtering infrared light. In this embodiment, light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

[0082] Table 4 below shows the effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, the total effective focal length f of the camera lens group, the total length TTL of the camera lens group, and half of the maximum angle of view of the camera lens group HFOV .

[0083] f1(mm)

[0084] Table 4

[0085] Table 5 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the imaging lens group in this embodiment, wherein the units of the radius of curvature and the thickness are millimeters (mm).

[0086]

[0087]

[0088] table 5

[0089] Table 6 below shows the coefficients of the higher-order terms of each aspheric surface S1 to S12 that can be used in each aspheric lens in this embodiment. Among them, each aspheric surface type can be defined by the formula (1) given in the above-mentioned embodiment 1.

[0090] Face number

[0091] Table 6

[0092] Figure 7 The on-axis chromatic aberration curve of the imaging lens group of Example 2 is shown, which indicates the deviation of the focus point of light rays of different wavelengths after passing through the optical system. Figure 8 The astigmatism curve of the imaging lens group of Example 2 is shown, which represents meridional field curvature and sagittal field curvature. Picture 9 The distortion curve of the imaging lens group of Embodiment 2 is shown, which represents the magnitude of distortion under different viewing angles. Picture 10 The chromatic aberration curve of magnification of the imaging lens group of Example 2 is shown, which represents the deviation of different image heights on the imaging surface after light passes through the imaging lens group. To sum up and refer to Figure 7 to Figure 10 It can be seen that the camera lens group according to Embodiment 2 can realize the core adjustment function in a grouped manner, thereby improving the module manufacturing yield and shortening the AF time.

[0093] Example 3

[0094] The following reference Figure 11 to Figure 15 The imaging lens group according to Embodiment 3 of the present application is described.

[0095] Picture 11 It is a schematic diagram showing the structure of the imaging lens group of Embodiment 3. The imaging lens group includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6 in order from the object side to the image side. The aligning group includes a first lens, a second lens, and a third lens, and the fixed group includes a fourth lens, a fifth lens, and a sixth lens. The alignment group is adjustable in the direction perpendicular to the optical axis.

[0096] The first lens E1 may have a positive refractive power, and its object side surface S1 may be a convex surface, and the image side surface S2 may be a concave surface.

[0097] The second lens E2 may have a negative refractive power, and the object side surface S3 may be a convex surface, and the image side surface S4 may be a concave surface.

[0098] The third lens E3 may have a positive refractive power, and the object side surface S5 may be a convex surface, and the image side surface S6 may be a concave surface.

[0099] The fourth lens E4 may have a positive refractive power, and the object side surface S7 may be a convex surface, and the image side surface S8 may be a concave surface.

[0100] The fifth lens E5 may have a positive refractive power, and the object side surface S9 may be convex, and the image side surface S10 may be convex.

[0101] The sixth lens E6 may have a negative refractive power, and the object side surface S11 may be a convex surface, and the image side surface S12 may be a concave surface.

[0102] Table 7 below shows the effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, the total effective focal length f of the camera lens group, the total length TTL of the camera lens group, and half of the maximum angle of view of the camera lens group HFOV .

[0103] f1(mm)

[0104] Table 7

[0105] Table 8 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the imaging lens group in this embodiment, wherein the units of the radius of curvature and thickness are millimeters (mm).

[0106]

[0107] Table 8

[0108] Table 9 below shows the coefficients of the higher order terms of each aspheric surface S1-S12 that can be used in each aspheric lens in this embodiment, where each aspheric surface type can be determined by the formula (1) given in the above embodiment 1. limited.

[0109] Face number

[0110] Table 9

[0111] Picture 12 The axial chromatic aberration curve of the imaging lens group of Example 3 is shown, which represents the deviation of the focus point of light rays of different wavelengths after passing through the optical system. Figure 13 The astigmatism curve of the imaging lens group of Example 3 is shown, which represents meridional field curvature and sagittal field curvature. Figure 14 The distortion curve of the imaging lens group of Embodiment 3 is shown, which represents the magnitude of distortion under different viewing angles. Figure 15 The magnification chromatic aberration curve of the imaging lens group of Example 3 is shown, which represents the deviation of different image heights on the imaging surface after light passes through the imaging lens group. To sum up and refer to Figure 12 to Figure 15 It can be seen that the camera lens group according to Embodiment 3 can realize the core adjustment function in a grouped manner, thereby improving the module manufacturing yield and shortening the AF time.