Optical imaging lens and imaging equipment
An optical imaging lens and imaging surface technology, applied in the field of imaging lenses, can solve the problems of the difficulty of pixel point size of the photosensitive chip, the inability to meet the needs of use, and the difficulty of correcting lens edge aberrations, so as to increase the imaging range, improve the Thermal stability as well as the effect of mechanical strength, good image quality
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no. 1 example
[0064] see figure 1 , is a schematic structural diagram of the optical imaging lens 100 provided in the first embodiment of the present invention, the optical imaging lens 100 includes in sequence from the object side to the imaging surface along the optical axis: a first group Q1, a diaphragm ST, and a second group Q2 , the third group Q3, the filter G1.
[0065] The first group Q1 includes a first lens L1 and a second lens L2.
[0066] The first lens L1 has negative refractive power, the object side S1 of the first lens is convex, the image side S2 of the first lens is concave, and the first lens L1 is a glass spherical lens.
[0067] The second lens L2 has positive refractive power, the object side S3 of the second lens is concave, the image side S4 of the second lens is convex, and the second lens L2 is a glass aspheric lens.
[0068] The second group Q2 includes a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6.
[0069] The third lens L3 has posi...
no. 2 example
[0086] see Figure 4 , is a schematic structural diagram of the optical imaging lens 200 provided by the second embodiment of the present invention. The optical imaging lens 200 in this embodiment is roughly the same as the optical imaging lens 100 in the first embodiment, the difference is that the object side surface S3 of the second lens L2 of the optical imaging lens 200 in this embodiment is a convex surface, and the second lens L2 of the optical imaging lens 200 in this embodiment is convex. The image side S10 of the fifth lens L5 is a concave surface, and the object side S10 of the sixth lens L6 is a convex surface, and the radius of curvature and material selection of each lens are different. The relevant parameters of each lens are shown in Table 3.
[0087] table 3
[0088]
[0089] The parameters of each lens aspheric surface in this embodiment are shown in Table 4.
[0090] Table 4
[0091]
[0092] In this embodiment, the graphs of the distortion and the ...
no. 3 example
[0096] see Figure 7 , shows a structural diagram of the optical imaging lens 300 provided by the second embodiment of the present invention. The optical imaging lens 300 in this embodiment is roughly the same as the optical imaging lens 100 in the first embodiment, the difference is that the object side surface S5 of the third lens L3 of the optical imaging lens 300 in this embodiment is a convex surface, and The radius of curvature and material selection of each lens are different, and the relevant parameters of each lens are shown in Table 5.
[0097] table 5
[0098]
[0099] The parameters of each lens aspheric surface in this embodiment are shown in Table 6.
[0100] Table 6
[0101]
[0102] In this embodiment, the graphs of the distortion and the vertical axis chromatic aberration of the optical imaging lens 300 are as follows Figure 8 and Figure 9 shown.
[0103] Depend on Figure 8 It can be seen that the f-θ distortion of the optical imaging lens 300 ...
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