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 poor imaging effect, small focal length, and inability to produce similar microscope effects, etc., and achieve clearer and more subtle picture features, small size, and optimized imaging effect.
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no. 1 example
[0078] see figure 1 , which is a schematic structural view of the optical lens 100 provided by 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 second lens L2, a diaphragm ST, a second lens Three lenses L3, a fourth lens L4 and a filter G1.
[0079] The first lens L1 has a 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 convex surface;
[0080] The second lens L2 has negative refractive power, the object side S3 of the second lens is concave, and the image side S4 of the second lens is concave;
[0081] The third lens L3 has positive refractive power, the object side S5 of the third lens is concave, and the image side S6 of the third lens is convex;
[0082] The fourth lens L4 has negative refractive power, the object side S7 of the fourth lens is concave, and the image...
no. 2 example
[0093] see Image 6 , which is a schematic structural view of the optical lens 200 provided in this embodiment, the structure of the optical lens 200 in this embodiment is roughly the same as that of the optical lens 100 in the first embodiment, the difference is that the optical lens in this embodiment The radius of curvature and thickness of each lens of the lens 200 are selected differently.
[0094] The relevant parameters of each lens in the optical lens 200 provided in this embodiment are shown in Table 3.
[0095] table 3
[0096]
[0097] The surface coefficients of each aspheric surface of the optical lens 200 in this embodiment are shown in Table 4.
[0098] Table 4
[0099]
[0100] In this embodiment, the curves of field curvature, distortion, axial point spherical aberration and lateral chromatic aberration of the optical lens 200 are as follows Figure 7 , Figure 8 , Figure 9 and Figure 10 shown by Figure 7 to Figure 10 It can be seen that the f...
no. 3 example
[0102] see Figure 11 , 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 in this embodiment The radius of curvature and thickness of each lens of the optical mirror 300 are selected differently.
[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] Table 6 shows the surface coefficients of each aspheric surface of the optical lens 300 in this embodiment.
[0107] Table 6
[0108]
[0109] In this embodiment, the curves of field curvature, distortion, axial point spherical aberration and lateral chromatic aberration of the optical lens 300 are as follows Figure 12 , Figure 13 , Figure 14 and Figure 15 shown by Figure 12 to Figure 15 It can be seen that the field curvatu...
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