Optical lens and imaging equipment
A technology of optical lens and imaging surface, which is applied in the field of imaging lens, can solve the problems of not combining super large aperture, etc., and achieve the effect of improving camera experience and increasing shutter speed
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no. 1 example
[0066] see figure 1 , which is a schematic structural view of the optical lens 100 provided in the first embodiment of the present invention, the optical lens 100 includes in sequence from the object side to the imaging surface along the optical axis: a stop ST, a first lens L1, a second lens L2, a second lens L2, Three lenses L3, fourth lens L4, fifth lens L5, sixth lens L6, seventh lens L7 and infrared filter G1.
[0067] The first lens L1 has positive refractive power, the object side S1 of the first lens is a convex surface, and the image side S2 of the first lens is a concave surface at the near optical axis;
[0068] The second lens L2 has a negative refractive power, the object side S3 of the second lens is a convex surface, and the image side S4 of the second lens is a concave surface;
[0069] The third lens L3 has positive refractive power, the object side S5 of the third lens is a convex surface, and the image side S6 of the third lens is a concave surface;
[007...
no. 2 example
[0086] For the structural schematic diagram of the optical lens 200 provided in this embodiment, please refer to Figure 5 , the structure of the optical lens 200 in this embodiment is substantially the same as that of the optical lens 100 in the first embodiment, except that the radius of curvature and material selection of each lens are different.
[0087] The relevant parameters of each lens in the optical lens 200 provided in this embodiment are shown in Table 3.
[0088] table 3
[0089]
[0090] The surface coefficients of each aspheric surface of the optical lens 200 in this embodiment are shown in Table 4.
[0091] Table 4
[0092]
[0093] In this embodiment, the graphs of field curvature, vertical chromatic aberration and axial chromatic aberration of the optical lens 200 are shown as Image 6 , Figure 7 with Figure 8 shown by Figure 6 to Figure 8 It can be seen that both field curvature and chromatic aberration of the optical lens 200 are well correct...
no. 3 example
[0098] see Figure 9 , which is a schematic structural view of the optical lens 300 provided in this embodiment, the structure of the optical lens 300 in this embodiment is roughly the same as that of the optical lens 100 in the first embodiment, the difference is that the radius of curvature of each lens and material choices vary.
[0099] The relevant parameters of each lens in the optical lens 300 provided in this embodiment are shown in Table 5.
[0100] table 5
[0101]
[0102] Table 6 shows the surface coefficients of each aspheric surface of the optical lens 300 in this embodiment.
[0103] Table 6
[0104]
[0105] In this embodiment, the graphs of field curvature, vertical chromatic aberration and axial chromatic aberration of the optical lens 300 are shown as Figure 10 , Figure 11 with Figure 12shown by Figure 10 to Figure 12 It can be seen that the field curvature, distortion and chromatic aberration of the optical lens 300 are well corrected.
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