refractive power having a concave image side surface a third lens element with a positive refractive power having a convex object side surface a stop a fourth lens element with a positive refractive power having a convex image side surface a fifth lens element with a negative refractive power having a concave object side surface each of the second third fourth and fifth lens elements has at least one aspheric surface thereby such a system has a wide field of view and can improve the yield rate when being applied to biomedicine car recorder camera or other electronic products application_number US 201313783340 A description referring to fig1 a which shows a five piece optical lens system in accordance with a first embodiment of the present invention and fig1 b shows the longitudinal spherical aberration curves the astigmatic field curves and the distortion curve of the first embodiment of the present invention a five piece optical lens system in accordance with the first embodiment of the present invention comprises in order from the object side to the image side a first lens element 110 with a negative refractive power made of plastic has a convex object side surface 111 and a concave image side surface 112 and the object side surface 111 and the image side surface 112 of the first lens element 110 are aspheric a second lens element 120 with a negative refractive power made of plastic has a convex object side surface 121 and a concave image side surface 122 and the object side surface 121 and the image side surface 122 of the second lens element 120 are aspheric a third lens element 130 with a positive refractive power made of plastic.