IMAGE PICKUP LENS, IMAGE PICKUP UNIT USING SOLID-STATE IMAGE SENSOR, AND MOBILE TERMINAL HAVING IMAGE PICKUP UNIT

摘要

PURPOSE: An image pickup lens, an image pickup unit using a solid-state image sensor, and a mobile terminal having an image pickup unit are provided to correct satisfactorily various aberrations by using a simple structure having only two lenses. CONSTITUTION: An image pickup lens includes an aperture stop(S), the first meniscus-shaped lens, and a second lens. The first meniscus-shaped lens(L1) includes a positive refractive index. A convex surface of the first meniscus-shaped lens faces an object. The second lens(L2) includes a positive or a negative refractive index. A convex surface of the second lens faces the object. Each of the first and the second lenses has one or more aspheric surface and satisfies a conditional expression such as f1/(f2)< 1.0 where f1 is focal length of the first lens, f2 is focal length of the second lens, and f is focal length of an entire system of the image pickup lens.