A transparent optical device element comprising: a. An optical lens, comprising i. at least one deformable lens body surrounded by a sidewall, ii. a bendable transparent cover member attached to a surface of said at least one deformable lens body, iii. one or more piezoelectric actuators (206, 208, 210) arranged for shaping said cover member into a desired shape, wherein said optical lens comprises an optical aperture with an optical axis, wherein the optical axis intersects the lens body and the cover member, and wherein the piezoelectric actuators are defining the optical aperture, such as being arranged so as to surround or encircle the optical aperture, b. a passivation layer (312, 314, 742, 628) placed on said optical lens, said passivation layer comprising multiple sublayers including: i. a barrier layer, said barrier layer forming a humidity barrier, and being located on: 1. at least a portion of said cover member, where said portion of said cover member is intersected by the optical axis, and 2. said piezoelectric actuators, ii. one or more further layers located on at least said portion of said cover member being intersected by the optical axis and arranged for improving an anti-reflecting property of the passivation layer, wherein said passivation layer forms an anti-reflection coating for said optical lens at least along the optical axis. a. An optical lens, comprising i. at least one deformable lens body surrounded by a sidewall, ii. a bendable transparent cover member attached to a surface of said at least one deformable lens body, iii. one or more piezoelectric actuators (206, 208, 210) arranged for shaping said cover member into a desired shape, wherein said optical lens comprises an optical aperture with an optical axis, wherein the optical axis intersects the lens body and the cover member, and wherein the piezoelectric actuators are defining the optical aperture, such as being arranged so as to surround or encircle the optical aperture, i. at least one deformable lens body surrounded by a sidewall, ii. a bendable transparent cover member attached to a surface of said at least one deformable lens body, iii. one or more piezoelectric actuators (206, 208, 210) arranged for shaping said cover member into a desired shape, b. a passivation layer (312, 314, 742, 628) placed on said optical lens, said passivation layer comprising multiple sublayers including: i. a barrier layer, said barrier layer forming a humidity barrier, and being located on: 1. at least a portion of said cover member, where said portion of said cover member is intersected by the optical axis, and 2. said piezoelectric actuators, ii. one or more further layers located on at least said portion of said cover member being intersected by the optical axis and arranged for improving an anti-reflecting property of the passivation layer, wherein said passivation layer forms an anti-reflection coating for said optical lens at least along the optical axis. i. a barrier layer, said barrier layer forming a humidity barrier, and being located on: 1. at least a portion of said cover member, where said portion of said cover member is intersected by the optical axis, and 2. said piezoelectric actuators, 1. at least a portion of said cover member, where said portion of said cover member is intersected by the optical axis, and 2. said piezoelectric actuators, ii. one or more further layers located on at least said portion of said cover member being intersected by the optical axis and arranged for improving an anti-reflecting property of the passivation layer,