Abstract: Disclosed is a laser light transceiver which is configured so as to include a polarization changing unit 2 for outputting a laser light beam outputted from a transmission light source 1 toward a direction corresponding to the polarization of the laser light beam while changing the polarization of the laser light beam with respect to time. As a result, the laser light transceiver can transmit a laser light beam, whose power is not decreased, in two eye directions without mechanically scanning with the laser light beam.

Abstract: Disclosed is a laser light transceiver which is configured so as to include a polarization changing unit 2 for outputting a laser light beam outputted from a transmission light source 1 toward a direction corresponding to the polarization of the laser light beam while changing the polarization of the laser light beam with respect to time. As a result, the laser light transceiver can transmit a laser light beam, whose power is not decreased, in two eye directions without mechanically scanning with the laser light beam.

Abstract: A meteorological radar system that can continuously and detailed observe an object. The search radar section continuously searches for an atmospheric phenomenon as a target within a wide search range while the search radar control section rotatably scans the search radar antenna. The scanning range deciding section decides the scanning range of an observation radar section from the location of an atmospheric phenomenon detected by the atmospheric phenomena detecting section with the data obtained by the search radar section and thus sets the observation radar control section in the observation radar section to the scanning range. The observation radar antenna can continuously observe a narrow scanning area corresponding to an object with narrowed beams while the search radar section continues its searching operation, so that an object can be measured with high space and time resolution.