Abstract: Disclosed is an optical system for imaging, which enables high resolution. An optical system for imaging, which focuses inspection light and monitoring light on an inspection target, includes a dioptric group configured to receive inspection light and monitoring light and to primarily focus the inspection light and the monitoring light on different locations, and a reflection dioptric group configured to reflect and refract the inspection light and the monitoring light that have passed through the dioptric group and to bring the inspection light and the monitoring light into one focus.

Abstract: Disclosed is an optical system for imaging, which enables high resolution. An optical system for imaging, which focuses inspection light and monitoring light on an inspection target, includes a dioptric group configured to receive inspection light and monitoring light and to primarily focus the inspection light and the monitoring light on different locations, and a reflection dioptric group configured to reflect and refract the inspection light and the monitoring light that have passed through the dioptric group and to bring the inspection light and the monitoring light into one focus.

Abstract: A monitoring system using an optical line is disclosed. The monitoring system using an optical line according to the present invention comprises: a laser diode for generating an input optical signal; an optical element for receiving the input optical signal through a first port and outputting same through a second port, and for receiving a reflected optical signal through the second port and outputting same through a third port; an optical switch unit for receiving the input optical signal through an input port connected to the second port of the optical element, and for distributing same through at least two output ports; at least one optical monitoring line connected to the output ports of the optical switch unit; a photodiode connected to the third port of the optical element, for detecting the reflected optical signal; and a signal processing unit for processing the signal detected by the photodiode.

Abstract: An intrusion detecting method using an intrusion detecting system which includes an optical fiber line installed in an area in which intrusion is to be detected, a laser diode inputting an optical signal to the optical fiber line, a photodiode detecting a reflected optical signal when the optical signal is reflected from the optical fiber line, an intrusion determining unit comparing a waveform of the reflected optical signal detected by the photodiode with a set reference waveform to determine whether an intrusion has occurred, and a laser diode temperature measuring unit measuring a temperature of the laser diode, includes designating, by the intrusion determining unit, a temperature of the laser diode at a first point in time as a first temperature and setting, to a reference waveform, a waveform of a first reflected optical signal caused by an input optical signal input by the laser diode at the first point in time, designating, by the intrusion determining unit, a temperature of the laser diode at a seco

Abstract: An intrusion detecting method using an intrusion detecting system which includes an optical fiber line installed in an area in which intrusion is to be detected, a laser diode inputting an optical signal to the optical fiber line, a photodiode detecting a reflected optical signal when the optical signal is reflected from the optical fiber line, an intrusion determining unit comparing a waveform of the reflected optical signal detected by the photodiode with a set reference waveform to determine whether an intrusion has occurred, and a laser diode temperature measuring unit measuring a temperature of the laser diode, includes designating, by the intrusion determining unit, a temperature of the laser diode at a first point in time as a first temperature and setting, to a reference waveform, a waveform of a first reflected optical signal caused by an input optical signal input by the laser diode at the first point in time, designating, by the intrusion determining unit, a temperature of the laser diode at a seco

Abstract: A monitoring system using an optical line is disclosed. The monitoring system using an optical line according to the present invention comprises: a laser diode for generating an input optical signal; an optical element for receiving the input optical signal through a first port and outputting same through a second port, and for receiving a reflected optical signal through the second port and outputting same through a third port; an optical switch unit for receiving the input optical signal through an input port connected to the second port of the optical element, and for distributing same through at least two output ports; at least one optical monitoring line connected to the output ports of the optical switch unit; a photodiode connected to the third port of the optical element, for detecting the reflected optical signal; and a signal processing unit for processing the signal detected by the photodiode.