Abstract: A stroller for disabled children, having a foldable underframe and a seat receiving means fixed to the underframe for receiving a seat with a backrest. The seat is fastened in the seat receiving means facing toward or away from the direction of travel. The seat receiving means is pivotable in relation to a horizontal plane for adjusting the inclination of the seat and is lockable in its respective position in relation to the underframe. The pivoting of the seat receiving means is provided by a pivoting device, which includes a control element, a locking element, and an actuator, which is in operative connection with the control element and the locking element.

Abstract: A stroller for disabled children, having a foldable underframe and a seat receiving means fixed to the underframe for receiving a seat with a backrest. The seat is fastened in the seat receiving means facing toward or away from the direction of travel. The seat receiving means is pivotable in relation to a horizontal plane for adjusting the inclination of the seat and is lockable in its respective position in relation to the underframe. The pivoting of the seat receiving means is provided by a pivoting device, which includes a control element, a locking element, and an actuator, which is in operative connection with the control element and the locking element.

Abstract: A passively mode-locked short pulse laser arrangement (1) comprising a laser resonator to which a pump beam (3) is supplied, a laser crystal (4), in particular a titanium-sapphire-(Ti:S-) laser crystal, and laser mirrors (M1 to M7), the laser crystal (4), which is subjected to a thermal load on account of the beam focussing, being mounted on a cooling body (10) provided for the removal of heat, which cooling body includes a bore (13) for the passage of the laser beam (3; 8), and on which a, particularly platelet-shaped, crystal mount (11) of a material with good heat conducting properties, preferably of copper, is provided for an improved removal of heat, the laser crystal (4) being held in an opening (14) of this crystal mount (11) by lateral abutment on oppositely arranged walls (15, 16) of the opening (14) of the crystal mount (11), the opening (14) in the crystal mount (11) being in alignment with the bore (13) in the cooling body (10).

Abstract: In a passively mode-locked short pulse laser arrangement including a laser resonator to which a pump beam is supplied, a titanium-sapphire (Ti:S) laser crystal, an optical Kerr element formed by the laser crystal itself, and an aperture restricting the resonator laser beam, the aperture has an arcuate or polygonal shape for adaptation to the beam cross-section.