It is an object of the present invention to provide a nitrogen-containing condensed ring compound, which can be used as an organic n-type semiconductor having an excellent electron transport property and which is also excellent in terms of solubility in an organic solvent. In the MOS transistor having a source tied body structure, a semiconductor regions having a low impurity concentration is formed between a regions for extracting excessive carriers and sourcedrain regions. The device further includes a third fastening facility for a third external fastening device having a third tensile strength. The device further includes a second optical detection module for detecting a nonlinear optical signal resulting from the interaction of the reflected excitation beam with the sample, and a processing module for processing the optical signals, detected by the first and second detection modules. A reduction drivebox with three double reduction sprocket and chain drives, rotate a drive sprocket axially engaging and rotating the elevator wheel.