A lens comprising: an optically transparent substrate having a first lens surface and a second lens surface opposite to the first lens surface , the lens optionally configured for focusing light impinging on the first lens surface ; the first lens surface including a plurality of Fresnel structures ; wherein: a respective Fresnel structure (262-2) of the plurality of Fresnel structures includes a slope facet and a draft facet, the draft facet characterised by a draft angle; the draft angle of the respective Fresnel structure (262-2) being based on a distance of the respective Fresnel structure from a center of the lens; characterised in that the optically transparent substrate has a central portion and a peripheral portion that is distinct from the central portion and is located around the central portion ; the first lens surface for the central portion of the lens is defined by a Fresnel surface profile; the second lens surface for the central portion of the lens is defined by a smooth surface profile; the first lens surface for the peripheral portion of the lens has a convex shape and is defined by a Fresnel surface profile; and the second lens surface for the peripheral portion of the lens has a concave shape and is defined by a Fresnel surface profile. an optically transparent substrate having a first lens surface and a second lens surface opposite to the first lens surface , the lens optionally configured for focusing light impinging on the first lens surface ; the first lens surface including a plurality of Fresnel structures ; wherein: a respective Fresnel structure (262-2) of the plurality of Fresnel structures includes a slope facet and a draft facet, the draft facet characterised by a draft angle; the draft angle of the respective Fresnel structure (262-2) being based on a distance of the respective Fresnel structure from a center of the lens; characterised in that the optically transparent substrate has a central portion and a peripheral portion that is distinct from the central portion and is located around the central portion ; the first lens surface for the central portion of the lens is defined by a Fresnel surface profile; the second lens surface for the central portion of the lens is defined by a smooth surface profile; the first lens surface for the peripheral portion of the lens has a convex shape and is defined by a Fresnel surface profile; and the second lens surface for the peripheral portion of the lens has a concave shape and is defined by a Fresnel surface profile. a respective Fresnel structure (262-2) of the plurality of Fresnel structures includes a slope facet and a draft facet, the draft facet characterised by a draft angle; the draft angle of the respective Fresnel structure (262-2) being based on a distance of the respective Fresnel structure from a center of the lens; characterised in that the optically transparent substrate has a central portion and a peripheral portion that is distinct from the central portion and is located around the central portion ; the first lens surface for the central portion of the lens is defined by a Fresnel surface profile; the second lens surface for the central portion of the lens is defined by a smooth surface profile; the first lens surface for the peripheral portion of the lens has a convex shape and is defined by a Fresnel surface profile; and the second lens surface for the peripheral portion of the lens has a concave shape and is defined by a Fresnel surface profile. <EOS>