Provided are polymeric or polymeric and glass optical fiber devices which have a tunable wavelength response in a polymeric fiber Bragg grating. Subsequently, an image stored in the storage medium is displayed, a desired device is selected based on specific information stored in the storage medium, and desired remote control for the device is selected. intuitively by displaying the relationship among the values of inspection speed S, inspection object digital signal image pixel size D, inspection object image size L, and image signal acquisition cycle P with use of a time delay integration method as a graph on an operation screen.