Method and apparatus for producing metal-coated optical fiber involves feeding a length of glass fiber through a first solution bath so as to plate a first predetermined metal on the glass fiber via electroless deposition. The length of glass fiber is passed continuously from the first solution bath to a second solution bath adapted to plate thereon a second predetermined metal via electrolytic plating such that the optical fiber contacts an electrode only after at least some of the second predetermined metal has been applied. The length of glass fiber may be passed continuously from the second solution bath to a third solution bath adapted to plate thereon a third predetermined metal via electrolytic plating.

Provided is a glass sheet (1) with a film, including a laminated film (2), which includes a plurality of films laminated together, formed on a glass sheet (3). The laminated film (2) includes: an inorganic material film (4), which contains at least a noble metal, formed on the glass sheet (3); a plated metal film (5) formed on the inorganic material film; and a metal film (6) formed on the plated metal film (5). The laminated film (2) is black when viewed from a glass sheet (3) side.

Provided is a method of producing a plating deposit which enables the production of a plating deposit with good adhesion to a glass substrate. Included is a method of producing a plating deposit, which includes: (1) forming a metal oxide layer on a surface of a glass substrate; (2) performing a first heat treatment after the step (1); (3) forming an electroless copper plating deposit on the metal oxide layer after the step (2); (4) performing a second heat treatment after the step (3); and (5) forming an electrolytic copper plating deposit on the electroless copper plating deposit after the step (4).