A method of 3D printing to achieve a desired surface quality on at least one surface of a 3D printed object comprising selecting a base surface having the desired surface quality; and printing the 3D printed object on the base surface, so that the desired surface quality is imparted to one surface of the 3D printed object during printing. The surface quality may be glassiness, roughness, smoothness and texture in general. Objects may thus be manufactured in which electronic components are integrated in or under a glass-like surface.

An oral care implement having a multi-component handle. The oral care implement may include a head and a handle. The handle may include a transparent component and an opaque component. The transparent component may have a front surface, a rear surface opposite the front surface, a first lateral surface, and a second lateral surface opposite the first lateral surface. The opaque component may at least partially cover the front and rear surfaces of the transparent component while leaving the first and second lateral surfaces of the transparent component exposed. Thus, the transparent component may form a window through the lateral surfaces of the handle.

The invention relates to a component (1) comprising a planar decorative element (4) with a front side (5) and a rear side (6). A cover layer (9, 10) is arranged on each of at least two regions of the front side (5) of the planar decorative element (4), these at least two cover layers (9, 10) being spaced completely apart from one another, and said at least two cover layers (9, 10) and at least one region (12, 14) of the front side (5) of the planar decorative element (4) together forming a visible side (2) of the component (1).

The object of the invention is a lens for a lighting and/or signaling device of a motor vehicle including a first layer of material (4), arranged on a first face (8) of which is a second layer of material (6) with additional thickness, said second layer extending partially over the first layer so as to have one end edge (16) overhanging an exposed portion (14) of the first layer of material.

The exposed portion (14) of the first layer of material (4), which is not covered by the second layer of material, includes on said first face (8) a notch (18) which extends along said end edge (16) of the second layer of material (6).

A method of manufacturing a radar transparent cover may include steps of: injection molding a first transparent cover; inserting into a mold the first transparent cover made by the step of injection molding the first transparent cover and then, double injection molding a color resin on a back surface of the first transparent cover; and inserting into a mold the injection molded article made by the step of double injection molding the color resin and then, double injection molding a second transparent cover on a front surface of the first transparent cover.

An oral care implement having a base structure with a handle portion and a head portion. In one aspect, the handle portion comprises a core component and a shell component that surrounds the core component. The core component may include a body formed of a rigid material and decorative elements embedded within the body. The shell component may be formed of a substantially transparent material so that the decorative elements of the core are visible through the shell component.

Manufacturing a pre-molded stack of one or more lenses to be installable on a curved substrate such as a vehicle windshield includes placing a moldable stack of one or more lenses and adhesive layer(s) on a mold, applying heat and pressure to the moldable stack to produce a pre-molded stack of one or more lenses from the moldable stack, and removing the pre-molded stack from the mold. The pre-molded stack may have a compound curvature, which may match a curvature of the curved substrate. The mold may be formed using three-dimensional shape data derived from the curved substrate, such as by optically scanning the curved substrate.

An oral care implement having a multi-component handle. The oral care implement may include a head and a handle. The handle may include a transparent component and an opaque component. The transparent component may have a front surface, a rear surface opposite the front surface, a first lateral surface, and a second lateral surface opposite the first lateral surface. The opaque component may at least partially cover the front and rear surfaces of the transparent component while leaving the first and second lateral surfaces of the transparent component exposed. Thus, the transparent component may form a window through the lateral surfaces of the handle.

A wafer-level method for manufacturing yardless lenses includes (a) depositing light-curable lens resin between a mold and a first side of a transparent substrate, wherein the first side of the transparent substrate has an opaque coating with a plurality of apertures respectively aligned with a plurality of lens-shaped recesses of the mold, and (b) exposing a second side of the transparent substrate, facing away from the first side, to light, thereby illuminating portions of the light-curable lens resin aligned with the plurality of apertures to form a respective plurality of yardless lenses.

The invention relates to a process for obtaining a light-scattering assembly in particular for a motor vehicle, the light-scattering assembly comprising a part including first and second sections. The process includes forming, by injection molding, the first section of the light-scattering assembly, the first section forming a transparent scattering screen having microstructures obtained by injection molding and configured to scatter light passing through said first section, and forming, by injection molding, the second section, the second section being devoid of microstructures obtained by injection molding and configured to scatter light. The second section has an external region extending around at least some of the perimeter of the first section, the external region extending beyond a peripheral portion of the first section [and away from the first section, the first and second sections being formed in contact with each other and being united with each other.