A cover for an electronic device and methods of forming a cover is disclosed. The electronic device may include a housing, and a cover coupled to the housing. The cover may have an inner surface having at least one of an intermediate polish and a final polish, a groove formed on the inner surface, and an outer surface positioned opposite the inner surface. The outer surface may have at least one of the intermediate polish and the final polish. The cover may also have a rounded perimeter portion formed between the inner surface and the outer surface. The rounded perimeter portion may be positioned adjacent the groove. The method for forming the cover may include performing a first polishing process on the sapphire component using a polishing tool, and performing a second polishing process on the groove of the sapphire component forming the cover using blasting media.

The invention relates to an external part including a first portion based on photostructurable glass, at least one second portion based on at least one second material. According to the invention, one surface of the first portion is made integral with a surface of the second portion so as to form a one-piece external part.

An electronic device is disclosed. The electronic device according to an embodiment of the present invention may include a first watch module and a second watch module. The first watch module may include a first body, a watch movement, a first window, and a watch hand. The second watch module may include a second body extended from the first body, a circuit board, a second window, and a second display. The first body and the second body may form a bending, and are communicated to each other.

Watch glass (1) including a first element (2) made of a first material and a second element (3) made of a second material different from the first, more elastic than the first material, the second element (3) includes a skirt (3b) in its lower part, and the two elements (2, 3) are fixed to each other so that the first element (2) is oriented toward the exterior of a watch and the skirt of the second element (3) is adapted for the assembly of the watch glass (1) to a watch middle (4).

A timepiece including a middle closed by a back cover and by a protective glass, the timepiece includes an anti-fogging device for the protective glass, the anti-fogging device including a layer of transparent conductive oxides provided at least on a portion of an internal surface of the protective glass; a thermal interface member, having a thermal conductivity greater than or equal to 1 W/m.Math.K, provided in the middle and configured to: a) ensure heat exchange by contact between the conductive oxide layer and the middle, the middle and the back cover being made of a thermally conductive material, or b) ensure heat exchange by contact between the conductive oxide layer and the back cover, the back cover including at least one part made of a thermally conductive material in contact with the thermal interface member.

Seeded silicon carbide (SiC) for devices and panels are disclosed. In one example embodiment, a device includes a housing and a window. Further, the window is attached to the housing. In this example embodiment, the window of the device is fabricated using the seeded SiC having a single crystalline structure.

An optical component includes: a base material; and an antireflection film, which includes a titanium oxide layer composed mainly of titanium oxide and containing at least one element selected from the group consisting of Nb, Si, Zr, Ta, Al, and Hf as an accessory component, and a silicon oxide layer composed mainly of silicon oxide. The element as the accessory component is preferably an element which constitutes a composite oxide with titanium. The content of the accessory component in the titanium oxide layer is preferably 0.01 mass % or more and 1.0 mass % or less.

An optical component includes: a base material; and an antireflection film, which includes a titanium oxide layer composed mainly of titanium oxide and containing at least one element selected from the group consisting of Nb, Si, Zr, Ta, Al, and Hf as an accessory component, and a silicon oxide layer composed mainly of silicon oxide. The element as the accessory component is preferably an element which constitutes a composite oxide with titanium. The content of the accessory component in the titanium oxide layer is preferably 0.01 mass % or more and 1.0 mass % or less.

An electronic device is disclosed. The electronic device according to an embodiment of the present invention may include a first watch module and a second watch module. The first watch module may include a first body, a watch movement, a first window, and a watch hand. The second watch module may include a second body extended from the first body, a circuit board, a second window, and a second display. The first body and the second body may form a bending, and are communicated to each other.

A light transmissive member includes a substrate having a light transmission property, wherein on one surface of the substrate, an antireflection layer in which a low-refractive index layer composed mainly of silicon oxide (SiO.sub.2) and a high-refractive index layer composed mainly of silicon nitride (SiN) are alternately stacked is formed, and on the other surface of the substrate, an antistatic layer including at least a transparent electrically conductive film layer is formed.