The purpose is to move an observation field of view of a microscope without moving or changing an objective lens without varying position or state of a sample. The said system can cool or warm the head of the user through the use of thermoelectric cooling elements, solid state fans or electro-aerodynamic pumps, heat exchangers, and a customized ventilation system. Then, a first injection amount correction value is determined based on the fuel concentration and the flow rate adjustment amount. The carrier is formed of at least two, and at most four, carrier members which are connected to one another. The heat-dissipating plate is sandwiched between the lamp seat and the metal layer of the substrate, and is in contact with the heat-conductive casing.