Abstract: An assembly comprising a plastic optical fiber socket attachable to three modules in accordance with JIS standards and a plug; the plastic optical fiber socket including a body having a plug inlet port, a port cover mounted to the body so as to be automatically openable, a receptacle mounted to the body for connection with a plastic optical fiber cable, and a tensile retainer engaged with the body for retaining the plastic optical fiber cable; and the plug including a housing, an engagement portion fixed to the housing for engagement with the receptacle, and a beam formed on the housing, the beam made of elastic material or having an elastic structure.

Abstract: Images of a reference object for detecting each camera position are captured by cameras 14, 16 and the relative position between the cameras 14 and 16 is obtained by using the captured images. Then, a target 18 is placed on a turntable 10 onto which reference marks 10a for detecting position are formed, and while the turntable 10 is rotated, images are captured by the cameras 14 and 16. Based on the reference marks 10a on the turntable 10, the positional relationship between the camera 14 and the target 18 is determined, and, based on the relative position of the cameras 14 and 16, the positional relationship between the target 18 and the camera 16 is determined. A three-dimensional model of the target is produced based on the images captured by the cameras 14 and 16. In this manner, a target of relatively large size is easily three-dimensionally modeled.

Abstract: An optical connector plug includes a holder having a ferrule at one end thereof, a stop ring for supporting the ferrule in a predetermined direction, a plug frame for rotatably supporting and incorporating the stop ring in an axial direction, and a coil spring interposed between the holder and the stop ring, for energizing the ferrule to the front in the plug frame, wherein the holder and the stop ring have engaging portions with which they are mutually engaged, and an optical axis of the ferrule is adjusted in a single step by rotating the stop ring and fixing the plug frame or by rotating the plug frame and fixing the stop ring, and an adjusted position is fixed by pressure generated by pressing the spring to the holder and by using an adhering agent which is filled between the plug frame and the stop ring.

Abstract: An assembly comprising a plastic optical fiber socket attachable to three modules in accordance with JIS standards and a plug; the plastic optical fiber socket including a body having a plug inlet port, a port cover mounted to the body so as to be automatically openable, a receptacle mounted to the body for connection with a plastic optical fiber cable, and a tensile retainer engaged with the body for retaining the plastic optical fiber cable; and the plug including a housing, an engagement portion fixed to the housing for engagement with the receptacle, and a beam formed on the housing, the beam made of elastic material or having an elastic structure.

Abstract: Images of a reference object for detecting each camera position are captured by cameras 14, 16 and the relative position between the cameras 14 and 16 is obtained by using the captured images. Then, a target 18 is placed on a turntable 10 onto which reference marks 10a for detecting position are formed, and while the turntable 10 is rotated, images are captured by the cameras 14 and 16. Based on the reference marks 10a on the turntable 10, the positional relationship between the camera 14 and the target 18 is determined, and, based on the relative position of the cameras 14 and 16, the positional relationship between the target 18 and the camera 16 is determined. A three-dimensional model of the target is produced based on the images captured by the cameras 14 and 16. In this manner, a target of relatively large size is easily three-dimensionally modeled.

Abstract: An optical connector plug includes a holder having a ferrule at one end thereof, a stop ring for supporting the ferrule in a predetermined direction, a plug frame for rotatably supporting and incorporating the stop ring in an axial direction, and a coil spring interposed between the holder and the stop ring, for energizing the ferrule to the front in the plug frame, wherein the holder and the stop ring have engaging portions with which they are mutually engaged, and an optical axis of the ferrule is adjusted in a single step by rotating the stop ring and fixing the plug frame or by rotating the plug frame and fixing the stop ring, and an adjusted position is fixed by pressure generated by pressing the spring to the holder and by using an adhering agent which is filled between the plug frame and the stop ring.

Abstract: A chuck mechanism (2) for holding a pipette head (3) is attached to an output end of a reciprocating drive mechanism (1). A chuck control mechanism (5) for controlling the head holding and releasing operations of the chuck mechanism (2) is disposed at one side of each of head support members (41) of a head stowing device (4) for accommodating replaceable pipette heads (3). The chuck control mechanism (5) comprises a control piece (54) engageable with and disengageable from the chuck mechanism (2) for effecting the holding and releasing operations, and a plurality of magnets (81), (82), (8) for reciprocatingly driving the control piece (54) with the reciprocating movement of the chuck mechanism (2) when the pipette head (3) as held by the chuck mechanism (2) is thereby moved toward or away from the head support member (41). The pipetting apparatus is adapted to automatically and rapidly replace the pipette head by another.

Abstract: An ultrasonic sensor detects the time of rise of the first of transmitted waves and also detects peak points Po appearing in the waveform of received waves to detect a waveform reference point where the time-base coordinate of a phantom envelope connecting these peak points Po is a minimum. The time T2 of rise of the first of the received waves is calculated by adding a predetermined period of offset time To to the time t2 of the waveform reference point of the received waves to calculate the elapsed time .DELTA.T from the time of rise of the first transmitted wave to the time of rise of the first received wave. The distance L to an object of measurement is calculated based on the result of calculation. The distance L to the object can be calculated alternatively based on the elapsed time .DELTA.T' from a waveform reference point of the transmitted waves to the waveform reference point of the received waves.