Optical lens
An optical lens and lens technology, applied in the field of optical lenses, can solve the problems of unsatisfactory dimensions and weight of the lens, unsatisfactory resolution and contrast, and inability to focus quickly with VCM, etc., to achieve light weight, increase the diffraction limit, and reduce the lens aperture Effect
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Embodiment 2
[0080] Such as Picture 9 As shown, an optical lens includes an aperture, a first lens 200, a second lens 300, a third lens 400, a fourth lens 500, a protective glass 600, and an optical axis I in sequence from the object side A1 to the image side A2. Imaging surface 700.
[0081] The first lens 200 has a positive refractive power, and has an object side surface 201 facing the object side A1 and an image side surface 202 facing the image side A2. The object side surface 201 is a convex surface, and the image side surface 202 is a concave surface. In some embodiments, , Like the side can also be flat;
[0082] The second lens 300 has a positive refractive power, and has an object side surface 301 facing the object side A1 and an image side surface 302 facing the image side A2. The object side surface 301 is convex and the image side surface 302 is concave. In some embodiments , Like the side can also be flat;
[0083] The third lens 400 has a positive refractive power, and has an ob...
Embodiment 3
[0093] Such as Figure 17 As shown, for an optical lens, the placement order of each lens and the refractive index of each lens are the same in this embodiment and the second embodiment, and only the optical parameters such as the radius of curvature of the lens surface and the lens thickness are different.
[0094] The detailed optical data of this specific embodiment is shown in Table 3-1.
[0095]
[0096] Reference for specific explanation of this embodiment Figure 18-24 Compare the graphs in the third embodiment with the examples. Although the refractive indices of the lenses in the second and third embodiments are the same, when the radius of curvature and the thickness of the lens are slightly changed, for example, the MTF graph in the third embodiment is compared The second embodiment is worse and the distortion is more obvious.
[0097] In the third embodiment, TTL is approximately 14.57 mm, and EFL is 15.00 mm.
Embodiment 4
[0099] Such as Figure 25 As shown, an optical lens includes a first lens 1000, a second lens 2000, a diaphragm, a third lens 4000, a fourth lens 5000, and a fifth lens 6000 in order along an optical axis I from the object side A1 to the image side A2. , Protect glass 7000 and imaging surface 8000.
[0100] The first lens 1000 has a positive refractive power and has an object side surface 1001 facing the object side A1 and an image side surface 1002 facing the image side A2. The object side surface 1001 is a convex surface, and the image side surface 1002 is a concave surface. In some embodiments , Like the side can also be flat;
[0101] The second lens 2000 has a positive refractive power and has an object side surface 2001 facing the object side A1 and an image side surface 2002 facing the image side A2. The object side surface 2001 is a convex surface, and the image side surface 2002 is a concave surface. In some embodiments , Like the side can also be flat;
[0102] The third ...
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