摘要:
A reflective optical switch comprises an input/output port portion; a polarization separator/combiner for separating lights in the same optical path and combining lights in different optical paths; a Faraday rotation angle changer; a polarization rotator for changing the relationship in polarizing direction between lights in different optical paths; a birefringence element for optical path control for controlling optical path shift in response to polarizing direction; and a polarization rotating reflector for rotating polarizing direction 90 degrees on forward and return paths. The input/output port portion, the polarization separator/combiner, the Faraday rotation angle changer, the polarization rotator, the birefringence element for optical path control, and the polarization rotating reflector are arranged along the optical path, and the Faraday rotation angle changer includes a Faraday element and an electromagnet for controlling 90-degree change in polarizing direction of transmitted light thereof.
摘要:
A game system is provided with a player information storage unit that stores a communication address of a communication device owned by a player, a preliminary match totaling unit that obtains a game evaluation of the player, a game history information storage unit that stores the game evaluation of each player for each game, a standard condition setting unit that sets a ranking for preliminary match passage, a monitoring unit that continuously monitors whether or not the game evaluation of each player has crossed over the standard condition, and notification means for sending, to a player for whom the monitoring means has determined according to continuous monitoring that the game evaluation has crossed over the standard condition, information to that effect to a communication device of that player. When a relative standard condition among the players has been crossed over, information to that effect is sent to the communication device of a player concerned, thereby carrying out notification processing effectively and greatly reducing server load.
摘要:
A polarized wave coupling optical isolator comprises a plane-parallel birefringent element for optical path control, which is provided to control an optical path according to a polarizing direction, a plane-parallel birefringent element for coupling and splitting, which is provided with a certain interval from the birefringent element for optical path control to couple lights of different optical paths having polarizing directions set orthogonal to each other, and to split lights of the same optical path, a nonreciprocal portion provided between the birefringent element for optical path control and the birefringent element for coupling and splitting, and constructed by including a combination of 45° Faraday rotator and a linear phasor for rotating a plane of polarization by 45°, two input ports installed on the birefringent element side for optical path control, and an output port installed on the birefringent element side for coupling and splitting.
摘要:
A game system is provided with a player information storage unit that stores a communication address of a communication device owned by a player, a preliminary match totaling unit that obtains a game evaluation of the player, a game history information storage unit that stores the game evaluation of each player for each game, a standard condition setting unit that sets a ranking for preliminary match passage, a monitoring unit that continuously monitors whether or not the game evaluation of each player has crossed over the standard condition, and notification means for sending, to a player for whom the monitoring means has determined according to continuous monitoring that the game evaluation has crossed over the standard condition, information to that effect to a communication device of that player. When a relative standard condition among the players has been crossed over, information to that effect is sent to the communication device of a player concerned, thereby carrying out notification processing effectively and greatly reducing server load.
摘要:
A polarized wave coupling optical isolator comprises a plane-parallel birefringent element for optical path control, which is provided to control an optical path according to a polarizing direction, a plane-parallel birefringent element for coupling and splitting, which is provided with a certain interval from the birefringent element for optical path control to couple lights of different optical paths having polarizing directions set orthogonal to each other, and to split lights of the same optical path, a nonreciprocal portion provided between the birefringent element for optical path control and the birefringent element for coupling and splitting, and constructed by including a combination of 45° Faraday rotator and a linear phasor for rotating a plane of polarization by 45°, two input ports installed on the birefringent element side for optical path control, and an output port installed on the birefringent element side for coupling and splitting.
摘要:
A reflective optical switch comprises an input/output port portion; a polarization separator/combiner for separating lights in the same optical path and combining lights in different optical paths; a Faraday rotation angle changer; a polarization rotator for changing the relationship in polarizing direction between lights in different optical paths; a birefringence element for optical path control for controlling optical path shift in response to polarizing direction; and a polarization rotating reflector for rotating polarizing direction 90 degrees on forward and return paths. The input/output port portion, the polarization separator/combiner, the Faraday rotation angle changer, the polarization rotator, the birefringence element for optical path control, and the polarization rotating reflector are arranged along the optical path, and the Faraday rotation angle changer includes a Faraday element and an electromagnet for controlling 90-degree change in polarizing direction of transmitted light thereof.