Optical system, lens module and electronic equipment
An optical system and lens technology, applied in optics, optical components, instruments, etc., can solve the problems of not conforming to the development trend of miniaturization and integration, too many lenses, and long lens barrels of telephoto lenses.
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no. 1 example
[0058] Please refer to Figure 1a and Figure 1b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:
[0059] The first lens L1 has a positive refracting power, the object side S1 of the first lens L1 is convex at the near optical axis and near the circumference, and the image side S2 at the near optical axis and near the circumference of the first lens L1 is convex;
[0060] The second lens L2 has a negative refracting power. The object side S3 at the near optical axis of the second lens L2 is concave, the object side S3 near the circumference is convex, and the image side at the near optical axis and near the circumference of the second lens L2. S4 is concave;
[0061] The third lens L3 has a negative refracting force, the object side S5 at the near optical axis of the third lens L3 is concave, the object side S5 near the circumference is convex, and the image side S6 at the near optical axis ...
no. 2 example
[0080] Please refer to Figure 2a and Figure 2b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:
[0081] The first lens L1 has a positive refractive power, the object side S1 at the near optical axis and near the circumference of the first lens L1 is a convex surface, and the image side S2 at the near optical axis and near the circumference of the first lens L1 is a convex surface;
[0082]The second lens L2 has a negative refracting force, the object side S3 at the near optical axis and near the circumference of the second lens L2 is a convex surface, and the image side S4 at the near optical axis and near the circumference of the second lens L2 is a concave surface;
[0083] The third lens L3 has a positive refractive power, the object side S5 at the near optical axis of the third lens L3 is concave, the object side S5 near the circumference is convex, and the image side at the near optic...
no. 3 example
[0098] Please refer to Figure 3a and Figure 3b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:
[0099] The first lens L1 has a positive refractive power, the object side S1 at the near optical axis and near the circumference of the first lens L1 is a convex surface, and the image side S2 at the near optical axis and near the circumference of the first lens L1 is a convex surface;
[0100] The second lens L2 has a negative refracting force, the object side S3 at the near optical axis and near the circumference of the second lens L2 is a convex surface, and the image side S4 at the near optical axis and near the circumference of the second lens L2 is a concave surface;
[0101] The third lens L3 has a negative refracting force, the object side S5 at the near optical axis and near the circumference of the third lens L3 is a concave surface, and the image side S6 at the near optical axis and ...
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