Patent ID: 8928999
Filing Date: 2015-01-06
Classification: G02B

Abstract:
1. An ultra-wide-angle imaging lens assembly with five lenses comprising a fixing diaphragm and an optical set; said optical set including a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, an arranging order thereof from an object side to an image side being: said first lens having a negative refractive power defined near an optical axis and a convex surface directed toward said object side; at least one surface of said first lens being aspheric; said second lens having a positive refractive power defined near said optical axis and a convex surface directed toward said object side; at least one surface of said second lens being aspheric; said fixing diaphragm; said third lens having a lens with a positive refractive power defined near said optical axis and a convex surface directed toward said image side; at least one surface of said third lens being aspheric; said fourth lens having a lens with a positive refractive power defined near said optical axis and a convex surface directed toward said image side; at least one surface of said fourth lens being aspheric; and said fifth lens having a concave surface with a corrugated contour directed toward said image side and disposed near said optical axis; at least one surface of said fifth lens being aspheric.