Imaging lens group
A lens group and lens technology, applied in optical components, instruments, optics, etc., can solve the problems of large image surface, large aperture and ultra-thinness at the same time
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Embodiment 1
[0058] like Figure 1 to Figure 31 As shown, the imaging lens group includes six lenses in sequence from the object side to the image side: a first lens with positive power, a second lens with negative power, a third lens with positive power, and a negative power The fourth lens with high power, the fifth lens with positive power, and the sixth lens with negative power; the object side of the fifth lens is convex, and the image side is convex; wherein, when balancing high-frequency performance, the imaging lens group The aperture value Fno1 satisfies: Fno12.2.
[0059] By reasonably constraining the power of each lens, it is beneficial to the smooth transition of light and to ensure the final imaging quality. By controlling and balancing high-frequency performance, the aperture value Fno1 of the imaging lens group is below 2.0, which is conducive to obtaining a larger amount of light, improving the illumination of the imaging surface and the response of the chip, thereby redu...
Embodiment 2
[0073] like Figure 1 to Figure 31 As shown, the imaging lens group includes six lenses in sequence from the object side to the image side: the first lens with positive refractive power; the second lens with negative refractive power; the third lens with positive refractive power; The fourth lens with positive power; the fifth lens with positive power, the object side of the fifth lens is convex, and the image side is convex; the sixth lens with negative power; among them, when balancing high-frequency performance, the imaging lens group The aperture value Fno1 satisfies: Fno1<2.0; the axial distance TTL from the object side of the first lens to the imaging surface and ImgH, which is half the diagonal length of the effective pixel area on the imaging surface, satisfies: TTL / ImgH<1.2.
[0074]By reasonably constraining the power of each lens, it is beneficial to the smooth transition of light and to ensure the final imaging quality. By controlling and balancing high-frequency ...
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Abstract
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