Partial metallization of molded part using ablation

An optical element of an automotive vehicle's lighting device, comprising:

• a first portion configured to transmit electromagnetic (EM) radiation therethrough, said EM radiation comprising visible wavelengths and an ablation process wavelength;
• a second portion configured to absorb at least said ablation process wavelength, said second portion being in contact with the first portion to define an ablation process boundary which separates a surface of the first portion from an adjacent surface of the second portion;
• and
• a patterned optical coating provided on the optical element such that the optical coating material is provided on at least a part of the surface of the second portion, but not provided on the surface of the first portion, wherein
• the patterned optical coating is a metallized surface coating configured to reflect visible light,
• the optical element is a lens comprising a base portion providing said first portion, and raised portions providing said second portion, the raised portions being formed on the base portion to form recesses, and
• the raised portions comprise black plastic overmolding formed on the base portion, the base portion being transparent.