Abstract: Lens assemblies and methods of manufacture are disclosed utilizing localized melting. Features may be included on movable lenses, portions of the lens barrel, or a combination thereof, the features designed to interact with a flow of melted material caused by the localized melting. Once the melted material cools, the movable lenses and lens barrel are fused together, securing the movable lens in place. Localized melting may also be utilized for active alignment, strategically melting portions of the lens barrel, movable lens, or other structure to adjust the movable lens.