Abstract: A lens system 1 is provided with: a first lens unit 5 that is movable in the direction of the optical axis x; a second lens unit 12 that is movable in the direction of the optical axis x; a driving mechanism 9 that linearly moves the first lens unit 5 in the direction of the optical axis x; and a cylindrical cam shaft 13 having at least a first cam portion 13a and a second cam portion 13b. In the cylindrical cam shaft 13, the first cam portion 13a is engaged with the first lens unit 5, and the second cam portion 13b is engaged with the second lens unit 12. The cylindrical cam shaft 13 is rotated by the linear movement of the first lens unit 5 by the first driving mechanism 9, and the second lens unit 12 is linearly moved by the rotation of the cylindrical cam shaft 13.

Abstract: A lens system 3 is provided with a plurality of lens units including a first lens unit 9, and has a condition changing structure 6 that is capable of changing the condition of the first lens unit 9 without changing the position of the first lens unit 9 in the direction of the optical axis x.

Abstract: In a flyback transformer device wherein the leads of diodes or like electronic components are connected between pairs of terminal pieces provided upright at opposite ends of a coil bobbin, the lead ends, of the components are fixedly connected to the respective terminal pieces by electric welding. A coil conductor wound around the bobbin has an end twined around the terminal piece, and the twined portion is soldered by dipping.

Abstract: A different amount of movement is provided for the first lens unit L1 relative to the rotation angle of the drive ring 1 in at least one zoom lens section 12z-15z provided on a first cam 1d and a focus section 12f-15f corresponding to the zoom section. A different amount of movement is provided for the second lens element L2 relative to the rotation angle of the drive ring 1 in at least one zoom section 22z-25z provided on a second cam 1c and a focus section 22f-25f corresponding to the zoom section. The average inclination angle &thgr;3 of the retracting section 10s is increased to be greater than the average inclination angle &thgr;2 of the total section B2 excluding the retracting section 10s of the first cam 1d.

Abstract: A rotation regulating mechanism (43) is disposed on a terminal chuck (41) for holding a wired terminal (T). The rotation regulating mechanism (43) is arranged to regulate the rotation of the wired terminal (T), allowing an operation of inserting the wired terminal (T). Even if the terminal chuck (41) has to receive a wired terminal (T) from a terminal positioning device (30) having an inverting function, the rotation or positional shift of the wired terminal (T) can be regulated.

Abstract: In a flyback transformer device wherein the leads of diodes or like electronic components are connected between pairs of terminal pieces provided upright at opposite ends of a coil bobbin, the lead ends of the components are fixedly connected to the respective terminal pieces by electric welding. A coil conductor wound around the bobbin has an end twined around the terminal piece, and the twined portion is soldered by dipping.