The present invention provides a method of forming a coating film on a substrate comprising the steps of: coating the substrate with a thermosetting and photocurable coating composition to form a wet coating film, heating the wet coating film to semicure the coating film, and irradiating the semicured coating film with light to cure the coating film. The covering section includes holes corresponding to the openings. The invention is especially adapted for portable telephone and data transmission devices. Finally, kits for use in practicing the subject methods are provided. The optimal image is determined by automatic searching with the figure of merit, by user’s observation, or by using blind deconvolution for a concurrent estimating of the system response function and updating the original image. A conical valve seat at the combustion chamber end of the bore is contacted in the closed position of the valve needle by a valve sealing surface on the of valve needle in order to seal the at least one injection opening.