Abstract: A novel spotlight where the position of image formation does not change even when the zoom adjustment is made after focus adjustment, so that focus adjustment and zoom adjustment can be facilitated. When a drive shaft (10) is rotated by operating a zoom adjustment handle (5), a lens (4a) moves forward and backward according to an unequal pitch (P1) of a first screw section (15), and a lens (4b) moves forward and backward according to an equal pitch (P2) of a second screw section (16), so that the distances between the lenses (4a–4c) are changed and zoom adjustment is made. Focusing adjusted by a focus adjustment mechanism (b) does not change even when the distances between the lenses are changed. Therefore, focus adjustment and zoom adjustment can be made extremely simply, and the spotlight can be used particularly useful in performance space such as TV studios and theater stages.

Abstract: A novel spotlight where the position of image formation does not change even when the zoom adjustment is made after focus adjustment, so that focus adjustment and zoom adjustment can be facilitated. When a drive shaft (10) is rotated by operating a zoom adjustment handle (5), a lens (4a) moves forward and backward according to an unequal pitch (P1) of a first screw section (15), and a lens (4b) moves forward and backward according to an equal pitch (P2) of a second screw section (16), so that the distances between the lenses (4a-4c) are changed and zoom adjustment is made. Focusing adjusted by a focus adjustment mechanism (b) does not change even when the distances between the lenses are changed. Therefore, focus adjustment and zoom adjustment can be made extremely simply, and the spotlight can be used particularly useful in performance space such as TV studios and theater stages.

Abstract: A lighting device includes a reflector that has forward and rearward segments separated by a clearance for cooling, a gobo holder into which gobos of differing sizes can be inserted and held in position, and a lens holder which can be moved forwardly and rearwardly in the lighting device by rotation of a gear which is attached to the lens holder and engages a rack in a slide guide in the lighting device, the gear being moved by a knob located outside the lighting device and which is rotatable with the gear and movable along the lighting device.

Abstract: The lighting device 1 is constructed such that the lens holder 11 is held by the guide rails 12a, 12b in such a way that the lens holder can be slid in a forward or rearward direction, the rack 13 is formed along the sliding direction of the lens holder 11, wherein it stores the lens position adjusting mechanism 6 including the gear 14 slid in integral with the lens holder 11 in a forward or rearward direction while being engaged with the rack 13, the operating knob 15 arranged at the outer surface of the lighting device 2 and slid in a forward or rearward direction while being integrally rotated with the gear 14, and the cam type lever 21 for use in locking a rotation of the operating knob 15. Thus, when either the focus adjustment or the zoom adjustment or the like is to be carried out, a fine adjustment of the position of the lens 5b can be easily carried out and a fixing of position of the lens after adjustment is also easily performed.