Patent ID: 9007702
Filing Date: 2015-04-14
Classification: G02B

Abstract:
1. A five-piece optical lens system comprising, in order from an object side to an image side: a first plastic lens element with a negative refractive power having an aspheric convex object-side surface and an aspheric concave image-side surface; a second plastic lens element with a negative refractive power having an aspheric concave image-side surface and an aspheric convex object-side surface; a third plastic lens element with a positive refractive power having an aspheric convex object-side surface and an aspheric concave image-side surface; a stop; a fourth plastic lens element with a positive refractive power having aspheric convex image-side surface and an aspheric convex object-side surface; and a fifth plastic lens element with a negative refractive power having aspheric concave object-side surface and an aspheric convex image-side surface.