Optical lens, fingerprint recognition module and mobile terminal

Abstract

The disclosure provides an optical lens, an imaging device, a fingerprint recognition module and a mobile terminal, along an optical axis from an object side to an image side, the optical lens sequentially including: a flat glass, a first lens, a stop, a second lens, a third lens, and an infrared filter. The optical lens satisfy a high-quality resolution, also have the advantages of small size, small distortion, and high relative illumination, they can effectively improve the rate of the fingerprint recognition, and more suitable for the design requirements of the full screen of the mobile phones. Meanwhile, the three lenses of the optical lens of the present disclosure all use low refractive index materials, which greatly reduces the production cost, and is more in line with the low-cost and high-performance development trend of the full screen of the mobile phone.