Abstract: An image sensor including a substrate, a plurality of conductive sections, a first type doped layer, an intrinsic layer, and a transparent electrode layer is provided. Wherein, the conductive sections are disposed on the substrate, and the dielectric layer is disposed between two adjacent conductive sections. In addition, the first type doped layer overlays the conductive sections and the dielectric layer, and the intrinsic layer is disposed on the first type doped layer. Moreover, the transparent electrode layer is disposed on the intrinsic layer.

Abstract: A method for determining an optimum write power for writing data to an optical disc is disclosed. The method includes utilizing a plurality of candidate write powers for writing data to the optical disc; measuring at least a writing quality parameter corresponding to each of the candidate write powers, respectively; determining a characteristic curve of the writing quality parameters to the candidate write powers; and determining the optimum write power according to a write power corresponding to a target inflection point of the characteristic curve.

Abstract: A socket device with an indication portion comprises a colored sleeve; the sleeve being made by high molecular organic plastics; a socket; the sleeve being rotatable installed on the socket; an indication portion on a surface of the sleeve for indicating a value about the size of the socket. The socket has an annular recess for receiving the sleeve. The sleeve may be an annular ring; or the sleeve is a C ring; or the sleeve has a protrusion and the protrusion is received in the annular recess.

Abstract: A sleeve with an indication assembly comprises a sleeve; and a toggle having an inner diameter corresponding to an outer diameter of the sleeve; and the toggle being made of aluminum alloy; a surfaces of the toggle being anodic processed so as to form with a protection film of different colors; thus the surfaces of the toggle is prevented from cracking, collision, mist and falling off. Furthermore, in another case, the toggle has an inner diameter corresponding to an outer diameter of the sleeve; and the toggle is made of iron. A surface of the toggle is electroplated so as to form with a copper layer and then is performed with anodic processing so as to have the effect of indication of sizes.