Abstract: A torch (flashlight) and a method for producing a torch housing and a torch head provides a torch which is of simple design and is robust. The torch has a rotary switch, in which torch clear classification of the selected function is possible, so that regular function monitoring can be dispensed with. The torch housing and the torch head can be connected in a captive manner and so as to be rotated in relation to one another to form a rotary switch having different switching states. Markings are arranged on the housing and on the lamp head. The markings allowing clear classification of the switching states. After the torch is first assembled and after the torch is first switched on, to clearly define the switching states by in each case a torch-head-side and a housing-side marking for subsequent switch-on processes.

Abstract: A flashlight has a casing extending along an axis, a light source capable of emitting a cone of light, and a lamp head with a lens attachment that can be displaced axially relative to the light source in order to focus the emitted cone of light. A cylindrical connecting piece connected positively to the lamp head is axially movable on the casing for fixing the lamp head in a selectable longitudinal axial position on the casing.

Abstract: The present invention relates to a flashlight having a rotary switch for switching different brightness levels and/or luminous colors, which rotary switch has a battery cartridge arranged rotatably in a flashlight housing and having spring-mounted electrical contacts arranged at the end, which electrical contacts are each connected to an electrical contact face or an electrical contact zone of a contact plate. In order to provide a switchover option for a flashlight with different switching steps that has a simple design, is light and can be operated reliably, the invention proposes that the battery cartridge is held securely in the flashlight housing by a fixing sleeve and that the battery cartridge is rotated in the flashlight housing by a rotary button that passes longitudinally axially through the fixing sleeve.

Abstract: The present invention relates to a cylindrical flashlight and a ring element for use as a roll-away safeguard of a cylindrical flashlight. In order to prevent a cylindrical flashlight from rolling away, the invention proposes a cylindrical flashlight having a ring element that is connected to the flashlight and has radially protruding elevations which have surface sections that are arranged at a distance from the surface of the cylindrical flashlight in some areas in the assembled state. Also proposed is a ring element for use as a roll-away safeguard of a cylindrical flashlight, which can be detachably connected to the flashlight and has radially protruding elevations which have surface sections that are arranged at a distance from the cylindrical surface of the flashlight in the assembled state.

Abstract: The present invention relates to a flashlight having a casing, a light source and a lamp head with a lens attachment that can be displaced longitudinally axially relative to the light source in order to focus the emitted cone of light. The object of the present invention is to provide a flashlight that, on the one hand, enables the reflector to be displaced smoothly relative to the light source and, on the other hand, prevents involuntary shifting of the focusing that has been set. According to the invention, the flashlight has a clamping device for fixing the lamp head in a selectable longitudinal axial position.

Abstract: A multi-purpose illumination device and a system and method for operating a multi-purpose illumination device are provided herein. A multi-purpose illumination device may include a lamp housing and a light source disposed within the lamp housing. The lamp housing may include a front, a back, a top, and a bottom, with the light from the light source projecting from the front of the lamp housing. The lamp housing may further define an air channel with an air inlet and an air outlet. The air inlet may be defined in the front of the lamp housing. The air outlet may be defined in the top of the lamp housing. Some embodiments may include a heat sink disposed within the lamp housing, where the air channel is at least partially defined by the heat sink. The heat sink may include at least one heat-dissipating fin disposed within the air channel.

Abstract: A flashlight has a casing extending along an axis, formed with a screwthread, and holding a battery having two poles. A light-emitting diode has a light-emitting head and a first and second integral lead wires. A holder is formed with first and second separate throughgoing holes, a seat into which the holes open and in which the diode head is fitted with the first and second wires extending outward through the respective first and second holes out of contact with each other, a reflector adjacent the seat, and a screwthread. The holder is fitted to the casing with the screwthread of the holder operatively engaged with the screwthread of the casing and the first wire pressed directly against one of the poles of the battery.

Abstract: A flashlight has a casing having a front end, a light source axially secured in the housing inward of the front end, and a two-part connecting sleeve forward of the light source and having a rear part secured in the housing and a front part. Interengaging formations couple the parts together for only limited axial movement relative to each other, but lock them rotationally and prevent axial separation beyond a predetermined limit. A lens is mounted in the front part. A head sleeve secured to the front part extends axially rearward over the front end of the casing so that relative axial movement of the front and rear parts axially shifts the lens relative to the source.

Abstract: The present invention relates to a flashlight having a housing, a battery cartridge which is mounted therein and has a pressure switch at the end, and an end cap having a pushbutton which is operatively connected to the pressure switch. In order to create a watertight and simultaneously robust flashlight, it is proposed according to the invention that a sealing element be arranged between the pushbutton and the pressure switch.

Abstract: The present invention relates to a flashlight with a cylindrical housing and a battery cartridge housed therein so that at least one battery can be removably retained. In order to provide a flashlight in which a faulty slide switch can be fitted or replaced simply and without any extra cost, according to the invention a slide switch is proposed with a slide mounted movably on the housing and a switch lever arranged on the battery cartridge.

Abstract: The present invention relates to a flashlight having an auxiliary optical system that is rotation symmetrical to an optical axis, and that has an outer reflector part, an inner converging lens part, and a rear surface having a blind bore, and having a light-emitting diode (LED) arranged on a disk-shaped holder. In order to provide a flashlight having an auxiliary optical system, in which the emission characteristic can be set between a so-called moon setting and a focus setting, wherein the operability of the flashlight is to be as simple as possible and the desired setting can be found rapidly and reliably, according to the invention, the auxiliary optical system is displaceable relative to the LED delimited by two stops in such a manner that a substantially homogeneous light cone is generated in the case of contact of the auxiliary optical system on the holder.

Abstract: A flashlight has a casing extending along an axis and having axially opposite front and rear ends, a collar fittable on the front end, a support disk engaged and gripped axially between the collar and the front end, a light source on a front face of the disk, thermally conductive regions on the disk, and a lamp head secured to the collar.