Patent ID: 11106012

Abstract:
An optical lens assembly includes, in order from an object side to an image side, six lens elements. The first lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof and at least one convex critical point in an off-axis region of the object-side surface thereof, and both the object-side surface and an image-side surface thereof are aspheric. The second lens element has negative refractive power. The third lens element has positive refractive power. The fourth lens element has negative refractive power. The fifth lens element has positive refractive power. The sixth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof and at least one convex critical point in an off-axis region of the image-side surface thereof. Both an object-side surface and the image-side surface of the sixth lens element are aspheric.