Lens
A lens and lens technology, applied in the field of lenses, can solve the problems of large volume and small aperture, and achieve the effects of high image resolution, increased target surface size and aperture, and good image quality.
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Embodiment 1
[0080] The focal length of the lens is 13-24.39 mm, the aperture Fno is 1.42, and the total length TTL of the lens is 164.09 mm. The data such as the radius of curvature, center thickness, refractive index nd, and Abbe number Vd of each lens are shown in Table 1:
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[0082]
[0083]
[0084] Table 1
[0085] When D5, D12, D26, and D31 in Table 1 are at wide-angle end W and telephoto end T:
[0086] D5 D12 D26 D31 W 1.06 16.12 3.67 2.54 T 17.05 0.12 1.80 4.42
[0087] In Table 1, the values of D32, D33, D34, and D35 when arriving at image plane 2 along the AOB path and arriving at image plane 1 along the AOC path are respectively:
[0088] D32 D33 D34 D35 AOB path 24.95 3.82 0.55 3.16 AOC path 25.5 7.03 0 0
[0089] Among them, D32 represents the distance that light passes through the prism group along the AOB path or AOC path, and D34 being 0 means that the component is not placed.
[0...
Embodiment 2
[0097] The focal length of the lens is 13-24.41 mm, the aperture Fno is 1.45, and the total length TTL of the lens is 164.75 mm. The data such as the radius of curvature, central thickness, refractive index nd, and Abbe number Vd of each lens are shown in Table 2:
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[0100]
[0101] Table 2
[0102] In Table 2, when D5, D12, D26, and D31 are at the wide-angle end W and the telephoto end T:
[0103] D5 D12 D13 D26 D31 1.02 18.50 26.73 3.58 2.47 17.93 0.10 28.23 1.57 4.49
[0104] The value change of the position D13 of the vignetting diaphragm indicates that the vignetting diaphragm moves along the optical axis within a small range, so as to eliminate the light that is not conducive to imaging to the greatest extent.
[0105] In Table 2, the values of D32, D33, D34, and D35 when arriving at image plane 2 along the AOB path and arriving at image plane 1 along the AOC path are respectively:
[0106] D32 D...
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