Abstract: In an optical connection component for use in connecting a connection object having a key formed on one side surface thereof, a housing for fitting over the connection object is formed around an optical axis. A shutter member is coupled to the housing and includes a light shielding portion which is elastically deformable and extends across the optical axis. The housing includes a key groove portion for receiving the key and an escape groove portion adapted to receive the light shielding potion in an elastically deformed state.

Abstract: In an optical connector for use in connecting an optical fiber, a shell member has an engaging portion. An internal member holds the optical fiber and is received in the shell member to be removable in a first direction. A stopper is engaged with the engaging portion in the first direction. A spring is engaged with the internal member and the stopper and urges the internal member towards a second direction opposite to the first direction. The shell member has a release operation portion for releasing the engaging portion from the stopper.

Abstract: In an optical connector having a housing defining an area surrounding a connection axis of the optical connector, the housing has a pair of slits spaced from each other and defining an elastic portion therebetween. A protruding portion protrudes from the elastic portion outward in a radial direction of the housing. A mounting portion is faced to the protruding portion with a space left therebetween.

Abstract: In an optical connector for connecting an optical fiber to a mating object having a pair of guide members, the optical connector includes a connector body fixed to the optical fiber and an adapter removably attached to the connector body. The adapter has a positioning groove for positioning an end portion of the optical fiber and a pair of guide grooves adapted to receive the guide members, respectively.

Abstract: In an optical connector, a holding member is coupled to a ferrule and attached to a housing. The ferrule has a flange portion brought into contact with the contact surface. The ferrule is adapted to receive an optical fiber. The housing has a contact surface and an engaging surface faced inward with respect to each other in an optical axis direction. The holding member includes a cylindrical main body for receiving the ferrule inserted therein, a first engaging portion connected to the main body and engaged with the engaging surface, and a second engaging portion connected to the main body and engaged with the flange portion, the second engaging portion being elastically deformable.

Abstract: An optical connector comprises a clamp member holding an optical fiber, a first housing to which the clamp member is fixed, and a second housing fitted to the first housing. The first housing has an aligning portion for aligning and positioning the optical fiber, and a clamp holding portion holding the clamp member. The optical fiber has an end portion protruding forward from the aligning portion in a cantilevered state.

Abstract: There is provided an optical connector device which prevents leakage of light until right before connectors are connected to each other and is small-sized by a reduction in space for housing shutters. The optical connector device is an optical connector device comprising a first optical connector and a second optical connector. When shutters for shutting out light from the optical connectors are collided with each other, the shutters move to positions where they do not shut out the light. Therefore, the first optical connector and the second optical connector are connected to each other. After moving, the shutter of the first optical connector and the shutter of the second optical connector are inserted into the second optical connector while remaining contacting each other.

Abstract: An optical connector apparatus includes a first connector having a first connecting portion adapted to be connected to and disconnected from a first connecting object in a first direction, a second connector which has a second connecting portion adapted to be connected to a second connection object and which is coupled to the first connector, and an optical fiber connected between the first and the second connectors. The first connector includes a first ferrule having an end portion formed at a position corresponding to the first connecting portion and having a first outer diameter. The second connector includes a second ferrule having an end portion formed at a position corresponding to the second connecting portion and having a second outer diameter greater than the first outer diameter. The optical fiber is coupled to the first and the second ferrules.

Abstract: For connecting an optical fiber having a fiber axis and an axial end portion provided with a chamfered surface having a predetermined angle with respect to the fiber axis, the optical connector includes an aligning member and a holding plate. The aligning member has a principal surface and a side surface adjacent to the principal surface. The aligning member has a fiber-receiving groove for receiving the axial end portion of the optical fiber. The fiber-receiving groove extends along the principal surface in a predetermined direction and has end portions each opening on the side surface. The holding plate is faced to the principal surface and covers the fiber-receiving groove. The holding plate has a first slant surface beside one of end portions of the fiber-receiving groove. The first slant surface has an angle with respect to the principal surface. The first angle is determined smaller than the predetermined angle.

Abstract: An optical connector apparatus includes a first and a second optical connector which are optically connectable to each other. The first optical connector includes a first connector body, a first light shielding device fitted to the first connector body in a first fitting direction, and a first guide portion coupled to the first light shielding device to guide fitting of the first light shielding device to the first connector body. The first guide portion has a first dimension in the first fitting direction. The second optical connector includes a second connector body, a second light shielding device fitted to the second connector body in a second fitting direction, and a second guide portion coupled to the second light shielding device to guide fitting of the second light shielding device to the second connector body. The second guide portion has a second dimension in the second fitting direction. In the optical connector, the second dimension is determined greater than the first dimension.

Abstract: In a fixing apparatus for fixing an optical connector to an optical cable having an optical fiber and wire members arranged around the optical fiber, the fixing apparatus includes first, second, and third holding members. The first holding member is adapted to be inserted between the wire member and the optical fiber. The second holding member is adapted to be disposed outside the wire members, the second holding member cooperating with the first holding member to tightly hold the wire members therebetween. The third holding member surrounding the second holding member and having an axial end portion adapted to be engaged with the second holding member in a rotation direction with respect to the optical cable. In addition, the third holding member has another axial end portion adapted to be connected to the optical connector.

Abstract: In an optical connection apparatus for use in optical connection, a shutter is held by a housing defining an optical axis of the optical connection. The shutter is formed by a single sheet of plate material and includes a plate-like light shielding portion positioned to cross the optical axis and a held portion held by the housing. The shielding portion has a width in a direction perpendicular to the optical axis. The held portion is shifted in position with respect to the light shielding portion in the direction of the width of the shielding portion.

Abstract: In an optical connector including an optical connector plug holding a first optical fiber and an optical connector plug holding a second optical fiber, the optical connector plugs cooperates with each other to obtain a connected state in which exposed longitudinal ends of the first and the second optical fibers are brought into contact with each other. The first optical fiber includes a long fiber portion and a short fiber portion higher in breakage resistance than the long fiber portion. One of the longitudinal ends of the short fiber is fused to one of longitudinal ends of the long fiber portion. Another of the longitudinal ends of the short fiber portion is exposed to serve as one of the exposed longitudinal ends.

Abstract: In a fixing tool for fixing a fiber holding member to an optical fiber, a tool body receives the optical fiber and the fiber holding member. In this event, the fiber holding member is disposed on a first specific part of the optical fiber. A positioning device fixes a second specific part of the optical fiber to the tool body in the state where the optical fiber and the fiber holding member are received in the tool body. The second specific part is a portion between the first specific part and a longitudinal end face of the optical fiber.

Abstract: The head end surface of an optical fiber (2) and the head end surface of an optical fiber (12) are butted to each other in an alignment member (22) of an adapter (21). In the butting, because one of the members clasping the optical fiber (2) is a plate (4a) that is short, the optical fiber (2) is bent and buckled between the left end of the short plate and the right end of the alignment member. Members clasping the optical fiber (12) are a long plate (14b) and a V-grooved base plate (13), and the optical fiber (12) is therefore horizontally fixed between each of right ends of the long plate and of the V-grooved base plate (13) and the left end of the alignment member. This results that the head end surface of the optical fiber (2) and the head end surface of the optical fiber (12) are in tight contact with each other, achieving excellent optical transmission between both optical fibers.

Abstract: A disassembling tool includes a holding block having a housing portion for accommodating a plug connector, a slide block, and a handling part for sliding the slide block. The plug connector comprises an outer member and a plug frame and is accommodated in the housing portion of the holding block. When turning a handle of the handling part, the slide block is slidably moved so that projections provided on the slide block release the locking between locking portions of the outer member and locked portions of the plug frame. Following this, contact portions provided on the slide block come into contact with the plug frame so as to push it out of the outer member by a given amount.

Abstract: An optical connector apparatus includes a first and a second optical connector which are optically connectable to each other. The first optical connector includes a first connector body, a first light shielding device fitted to the first connector body in a first fitting direction, and a first guide portion coupled to the first light shielding device to guide fitting of the first light shielding device to the first connector body. The first guide portion has a first dimension in the first fitting direction. The second optical connector includes a second connector body, a second light shielding device fitted to the second connector body in a second fitting direction, and a second guide portion coupled to the second light shielding device to guide fitting of the second light shielding device to the second connector body. The second guide portion has a second dimension in the second fitting direction. In the optical connector, the second dimension is determined greater than the first dimension.

Abstract: In an optical connector for use in connecting an optical fiber, a housing defines an optical axis extending in a predetermined direction. For positioning the optical fiber along the optical axis, a ferrule is accommodated in the housing to be movable in the predetermined direction. The housing further accommodates a fixing member engaged with the housing in the predetermined direction. Between the ferrule and the fixing member, an elastic member is interposed to urge the ferrule towards one side in the predetermined direction. In addition, the housing has a guide groove extending in the predetermined direction. The fixing member has a guide portion protruding through the guide groove to the outside of the housing.

Abstract: There is provided an optical connector device which prevents leakage of light until right before connectors are connected to each other and is small-sized by a reduction in space for housing shutters. The optical connector device is an optical connector device comprising a first optical connector and a second optical connector. When shutters for shutting out light from the optical connectors are collided with each other, the shutters move to positions where they do not shut out the light. Therefore, the first optical connector and the second optical connector are connected to each other. After moving, the shutter of the first optical connector and the shutter of the second optical connector are inserted into the second optical connector while remaining contacting each other.

Abstract: In an optical connector, a holding member is coupled to a ferrule and attached to a housing. The ferrule has a flange portion brought into contact with the contact surface. The ferrule is adapted to receive an optical fiber. The housing has a contact surface and an engaging surface faced inward with respect to each other in an optical axis direction. The holding member includes a cylindrical main body for receiving the ferrule inserted therein, a first engaging portion connected to the main body and engaged with the engaging surface, and a second engaging portion connected to the main body and engaged with the flange portion, the second engaging portion being elastically deformable.