An image lens array, from object side, comprises: a first positive meniscus plastic lens with a convex surface facing forward, a second negative meniscus plastic lens with a concave surface facing forward, a third positive meniscus plastic lens with a convex surface facing forward, and an infrared filter disposed in the lens barrel of the image lens array, the central thickness of the first and second lenses are: CT1<1.0 mm, CT2<0.6 mm. The radius of curvature of the front and back surfaces of the first lens are L1R1 and L1R2 that satisfy the condition as: |L1R1/L1R2|<0.5. The radius of curvature of the front and back surfaces of the third lens are L3R1 and L3R2 that satisfy the condition: |L3R1/L3R2|>0.3.