Optical lens and imaging equipment
An optical lens and lens technology, applied in the field of imaging lens, to achieve the effect of overall length, good imaging quality, and compact structure
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no. 1 example
[0068] see figure 1 , is a schematic structural diagram 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 first lens L1, a stop ST, a second lens L2, and a third lens L3, fourth lens L4, fifth lens L5, filter G1.
[0069] The first lens L1 has negative refractive power, the object side S1 of the first lens is a convex surface at the near optical axis, and the image side S2 of the first lens is a concave surface;
[0070] The second lens L2 has positive refractive power, the object side S3 of the second lens is convex, and the image side S4 of the second lens is convex;
[0071] The third lens L3 has negative refractive power, the object side S5 of the third lens is convex at the near optical axis, and the image side S6 of the third lens is concave;
[0072] The fourth lens L4 has positive refractive power, the object side S7 of the ...
no. 2 example
[0088] The structure of the optical lens in this embodiment is roughly 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.
[0089] The relevant parameters of each lens in the optical lens provided in this embodiment are shown in Table 3.
[0090] table 3
[0091]
[0092]
[0093] The surface coefficients of each aspheric surface of the optical lens in this embodiment are shown in Table 4.
[0094] Table 4
[0095]
[0096]
[0097] Please refer to Figure 5 , Image 6 with Figure 7 , respectively show the field curvature curve, the vertical axis chromatic aberration curve and the axial chromatic aberration curve of the optical lens of this embodiment.
[0098] Figure 5 Indicates the degree of curvature of the meridional image plane and sagittal image plane. from Figure 5 It can be seen from the figure that the field curvature of the meridian image plane...
no. 3 example
[0102] The structure of the optical lens in this embodiment is roughly 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.
[0103] The relevant parameters of each lens in the optical lens provided in this embodiment are shown in Table 5.
[0104] table 5
[0105]
[0106]
[0107] Table 6 shows the surface coefficients of each aspheric surface of the optical lens in this embodiment.
[0108] Table 6
[0109]
[0110] Please refer to Figure 8 , Figure 9 with Figure 10 , respectively show the field curvature curve, the vertical axis chromatic aberration curve and the axial chromatic aberration curve of the optical lens of this embodiment.
[0111] Figure 8 Indicates the degree of curvature of the meridional image plane and sagittal image plane. from Figure 8 It can be seen from the figure that the field curvature of the meridian image plane and the sagittal...
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