Optical system, image capturing module and terminal device
An optical system and optical axis technology, applied in the field of photography, can solve problems such as difficult to ensure driving safety performance and image quality needs to be improved
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no. 1 example
[0062] See figure 1 and figure 2 , figure 1 It is a schematic structural diagram of the optical system 100 in the first embodiment. The optical system 100 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with positive refractive power, and a negative refractive power lens from the object side to the image side. The third lens L3, the diaphragm STO, the fourth lens L4 with negative refractive power, the fifth lens L5 with positive refractive power, the sixth lens L6 with positive refractive power, and the seventh lens L7 with negative refractive power, the The quadruple lens L4 and the fifth lens L5 are cemented. figure 2 From left to right are graphs of longitudinal spherical aberration, astigmatism, and distortion of the optical system 100 in the first embodiment, wherein the reference wavelength of the astigmatism graph and the distortion graph is 546.0740 nm, and other embodiments are the same.
[0063] The object side S1 of the fi...
no. 2 example
[0085] See image 3 and Figure 4 , image 3 It is a schematic structural diagram of the optical system 100 in the second embodiment. The optical system 100 sequentially includes a first lens L1 with a negative refractive power, a second lens L2 with a positive refractive power, and a lens with a positive refractive power from the object side to the image side. The third lens L3, the diaphragm STO, the fourth lens L4 with negative refractive power, the fifth lens L5 with positive refractive power, the sixth lens L6 with positive refractive power, and the seventh lens L7 with negative refractive power, the th The quadruple lens L4 and the fifth lens L5 are cemented. Figure 4 From left to right are graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the second embodiment.
[0086] The object side S1 of the first lens L1 is concave at the near optical axis 110, and the image side S2 is concave at the near optical axis 110;
[...
no. 3 example
[0103] See Figure 5 and Image 6 , Figure 5 It is a schematic structural diagram of the optical system 100 in the third embodiment. The optical system 100 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with positive refractive power, and a lens with positive refractive power from the object side to the image side. The third lens L3, the diaphragm STO, the fourth lens L4 with negative refractive power, the fifth lens L5 with positive refractive power, the sixth lens L6 with positive refractive power, and the seventh lens L7 with negative refractive power, the th The quadruple lens L4 and the fifth lens L5 are cemented. Image 6 From left to right are graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the third embodiment.
[0104] The object side S1 of the first lens L1 is concave at the near optical axis 110, and the image side S2 is concave at the near optical axis 110;
[0105] Th...
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