Patent ID: 7139133

Claim:
An optical lens ( 1 ) having an optically active surface ( 5 ′) and an optical axis (O), wherein said optically active surface is provided with an embossed fine structure ( 2 ), said fine structure ( 2 ) extends radially outward in a direction from said optical axis toward an outer periphery (P), said fine structure ( 2 ) has an undulating form, said optically active surface ( 5 ′) is provided with an embossed microstructure ( 3 ) superimposed on the embossed fine structure ( 2 ), the fine structure ( 2 ) has a roughness that is greater than that of the microstructure ( 3 ), and the microstructure ( 3 ) has a roughness (h) in a range of from 0.1 μm to 2.5 μm so as to modulate the fine structure thus providing a soft-focus effect.