Abstract: The invention relates to a headlamp/camera unit, especially for medical uses, comprising at least one lamp, an especially electronic camera, a support device that supports the at least one lamp and the camera on the head of a person, and an optical sighting mechanism that projects at least one aiming mark into the image field of the camera illuminated by the lamp.

Abstract: A plug-and-socket connector for optical fibers, comprising a socket where an optical fiber to be connected is retained, and a plug which receives the optical fiber in a centering element which surround the fiber, thus centering it, due to the locking rotating movement into which the optical fiber is inserted when the plug and the socket are connected.

Abstract: In an arrangement for coupling an optical waveguide to an optical device, particularly for a laser application, or to another optical waveguide, the optical waveguide is held in a fiber plug which can be connected with a countercoupling part in which the end of the waveguide is introduced into a fixed centering sleeve and centered. The discardable fiber plug of simple construction is fastened on the elastic fiber cladding of the optical waveguide, and the projecting front end of the waveguide is bared down to the optical fiber cladding. The optical waveguide fiber which is introduced into said centering sleeve is bared, and centering is facilitated by the elasticity of the fiber. The centering sleeve may be provided with an introducing cone, and may have an elastic diameter, and the fiber plug may be fastened on the countercoupling part by means of instant plug-in connections.

Abstract: A light display system using fiber-optic light feeds has a matrix plate in which information signs to be displayed (and optionally composed of several display symbols) are formed by grids of light guide exits, according to their display. The light guides are combined to form several light guide cable trees to each of which at least one main light source and one auxiliary light source are assigned on the feeding side. The feeding ends of the light guides of the respective mutually exchangeable display symbols are arranged on a plane or curved surface or line in such a manner that each one of a plurality of light sources arranged on a common carrier, as the result of the relative displacement of the light sources with respect to the feeding ends, can be positioned in front of each feeding end, with a preferably flush alignment of the optical axes of the respective lamp and of the respective light guide cable tree.

Abstract: A rod-like apparatus for determining the existing level of liquids in containers, channels or the like has a lightguide 1 to be arranged in a container and comprising a core of a transparent material with a first refractive index and also a transmitter 14 and a receiver 15 for light to be sent through the lightguide 1. In order to be able to measure changes in the filling height in the container in a quasi-analog or analog manner, the lightguide 1, which may have a cladding, is wound about a rod-shaped carrier body of non-uniform cross-section. The non-uniform regions of the carrier body 5 have a form such that the lightguide 1 is shaped so that at the particularly curved regions 10 the conditions for total reflection hold when ambient air is present, while on wetting with liquid the conditions fall below those for total reflection so that light emerges into the liquid.

Abstract: A light guide arrangement in which at least two light guides are coupled at one end to an optical integration Chamber for achieving a common field of view from the remote ends of both or all of the light guides even when the end of the optical integration chamber is in contact with a surface being scanned, in which the components of the optical integration chamber, that is a light guiding element, a sheath of optically insulating material, and an outer cladding are held together by a bond which does not involve the use of a bonding material, to attenuate the problems due to wear of the scanning end of the optical integration chamber. The scanning tip of the integration chamber may be drawn to a point during or after the bonding to form a well defined scanning point.