| 摘要 |
An imaging module includes an imaging lens system and an image sensor. The imaging lens system includes a first lens, a second lens, and a third lens. The imaging module satisfies the formulae, 2.4<S1/D1<3.0, 0.3<R1/F<0.7, wherein S1 is the effective diameter of the first surface S1 of the first lens, D1 is the distance from the object side surface S1 to the image side surface S2 of the first lens along the optic axis, R1 is the radius of curvature of the object side surface S1 of the first lens, and F is the focal length of the imaging lens system.
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