Duplex optical connector plug and polarity reversal method of duplex optical connector plug

A duplex optical connector plug, comprising:

• a first optical connector assembly;
• and
• a second optical connector assembly which is in parallel with the first optical connector assembly, wherein
• the first optical connector assembly has:
• a first plug frame for housing a first ferrule which holds a first optical fiber and extends in an axial direction;
• a first stop ring which is engageably inserted into the first plug frame;
• and
• a first spring which is arranged between the first ferrule and the first stop ring for biasing the first ferrule forward in the axial direction,
• the second optical connector assembly has:
• a second plug frame for housing a second ferrule which holds a second optical fiber and extends in the axial direction;
• a second stop ring which is engageably inserted into the second plug frame;
• and
• a second spring which is arranged between the second ferrule and the second stop ring for biasing the second ferrule forward in the axial direction,
• the duplex optical connector plug has gears which transmit a rotational force of one of the first and second optical connector assemblies to the other of the first and second optical connector assemblies, and
• in the duplex optical connector plug, when one of the first and second optical connector assemblies is rotated around the axis of the one of the first and second optical connector assemblies, the other of the first and second optical connector assemblies is rotated around the axis of the other of the first and second optical connector assemblies by the gears interlockingly with a rotation of the one of the first and second optical connector assemblies.

A polarity reversal method for reversing a polarity of a duplex optical connector plug, the duplex optical connector plug comprising:

• a first optical connector assembly;
• and
• a second optical connector assembly which is in parallel with the first optical connector assembly, wherein
• the first optical connector assembly has:
• a first plug frame for housing a first ferrule which holds a first optical fiber and extends in an axial direction;
• a first stop ring which is engageably inserted into the first plug frame;
• and
• a first spring which is arranged between the first ferrule and the first stop ring for biasing the first ferrule forward in the axial direction,
• the second optical connector assembly has:
• a second plug frame for housing a second ferrule which holds a second optical fiber and extends in the axial direction;
• a second stop ring which is engageably inserted into the second plug frame;
• and
• a second spring which is arranged between the second ferrule and the second stop ring for biasing the second ferrule forward in the axial direction,
• the polarity reversal method comprising the step of rotating one of the first and second optical connector assemblies around the axis of the one of the first and second optical connector assemblies from a starting point to a finishing point of a rotation by a half-rotation, wherein
• the other of the first and second optical connector assemblies is rotated around the axis of the other of the first and second optical connector assemblies interlockingly with the rotation of the one of the first and second optical connector assemblies from the starting point to the finishing point of the rotation by a half-rotation in the same direction as the one of the first and second optical connector assemblies, and
• the polarity of the duplex optical connector plug is reversed by the rotation of the first and second optical connector assemblies.

A polarity reversal method for reversing a polarity of a duplex optical connector plug, the duplex optical connector plug comprising:

• a first optical connector assembly;
• and
• a second optical connector assembly which is in parallel with the first optical connector assembly, wherein
• the first optical connector assembly has:
• a first plug frame for housing a first ferrule which holds a first optical fiber and extends in an axial direction;
• a first stop ring which is engageably inserted into the first plug frame;
• and
• a first spring which is arranged between the first ferrule and the first stop ring for biasing the first ferrule forward in the axial direction,
• the second optical connector assembly has:
• a second plug frame for housing a second ferrule which holds a second optical fiber and extends in the axial direction;
• a second stop ring which is engageably inserted into the second plug frame;
• and
• a second spring which is arranged between the second ferrule and the second stop ring for biasing the second ferrule forward in the axial direction, wherein
• the duplex optical connector plug has gears which transmit a rotational force of the one of the first and second optical connector assemblies to the other of the first and second optical connector assemblies, and
• the polarity reversal method comprising the step of rotating one of the first and second optical connector assemblies around the axis of the one of the first and second optical connector assemblies from a starting point to a finishing point of a rotation by a half-rotation, wherein
• the other of the first and second optical connector assemblies is rotated around the axis of the other of the first and second optical connector assemblies by the gears interlockingly with the rotation of the one of the first and second optical connector assemblies from the starting point to the finishing point of the rotation by a half-rotation in the same direction as the one of the first and second optical connector assemblies, and
• the polarity of the duplex optical connector plug is reversed by the rotation of the first and second optical connector assemblies.