Abstract: The invention relates to an optical collimator for focusing light by means of a plurality of optical surfaces, which are designed as light entry surfaces and/or light exit surfaces and/or reflection surfaces, which form respective optical boundary surfaces with a change in the optical density. The aim of the invention is to propose a collimator by means of which homogeneous illumination is possible even if a plurality of light sources is used, the collimator having a compact design and being economical to produce. This aim is achieved, according to the invention, in that the collimator has a plurality of concave micro-lenses (3, 11), which are formed on at least one of the optical surfaces.

Abstract: A torch (1), which is producible at low cost and is operable comfortably with one hand, irrespective of a gripping position, includes a torch head (2) which has a lighting unit (18), including a housing (3) configured as a gripping piece that extends along a longitudinal axis (L) and has a closed end section (4) at the rear. A linear-travel switch with a slide (5) operates the torch (1). The slide (5) is slidably and captively mounted on the housing (3). The slide (5) is formed in an L-shape with a first section (6) and a second section (9). The first section (6) extends longitudinally and axially along the housing (3) and the second section (9) engages behind (or catches behind) the closed end section (4) of the housing (3), so that the linear-travel switch can be operated in different gripping positions.

Abstract: A headlight (forehead light) includes a housing (10) for accommodating a light-emitting device, in particular at least one LED, and a further housing (11) for accommodating at least one battery or rechargeable battery (15). The housings (10, 11) are connected to one another by a conductor (16) suitable for voltage and current supply and are secured to a strap. The strap has an elastic and a non-elastic part (12, 13). The conductor (16) is integrated into the non-elastic part (12).

Abstract: The invention relates to a torch having a housing in which at least one LED secured to a carrier element, and a lens system, are arranged and can be displaced relative to one another in order to focus the cone of light that is emitted. According to the invention, a seal consisting of a membrane (14) closes the space (23) between the LED (11) and the lens system (13) in a watertight and dust-proof manner.

Abstract: The invention relates to a charging station with a charging contact device (20) and an accumulator-operated flashlight (10) with charging contacts (14, 15), arranged transverse to the flashlight longitudinal axis and insulated with respect to one another, on the flashlight housing casing, which, when the accumulators are being recharged, bear electrically conductively against charging contact points (28, 29) of the charging contact device (20).