Abstract: The invention relates to an optical rotary transmitter for transmitting optical signals, comprising a first light coupler (1) that has one or a plurality of first light guides (11) the end faces of which are designed to transmit optical signals and are arranged on a first ring about a central rotational axis Z, a second light coupler (3) that has one or a plurality of second light guides (31) the end faces of which are designed to transmit optical signals and are arranged on a second ring about the central rotational axis Z, a fiber mirror (5) comprising a plurality of third light guides that are arranged between said two light couplers (1,3) and are designed to compensate for the effect, on the transmission of the optical signals, of the two light couplers (1,3) rotating relative to one another, the end faces of the third light guides being designed to transmit optical signals and arranged on a third and fourth ring about the central rotational axis Z.

Abstract: An optical rotary transmitter which ensures the reliable transmission of optical signals in conjunction with a comparatively simple construction comprises two parts spaced apart from one another which are rotatable relative to one another about a common centre axis and the first of which comprises a first circular light coupler (10) and the second of which comprises a second circular light coupler (20). The light entrance and light exit surfaces of the two light couplers face one another. Each of the light couplers (10, 20) consists of collimators (11, 21) combined to form a respective collimator arrangement (16, 26), optical coupling elements (15, 25) being connected to said collimators.

Abstract: A pencil has a pencil casing made of a sharpenable casing material and a core held in a central receiving bore in the casing material that extends in the longitudinal direction of the pencil. One or more optical fibers made of a sharpenable material is/are arranged in the pencil casing. The optical fiber or optical fibers extends in the longitudinal direction as well and are at least partially surrounded by the material of the pencil casing. A light entry surface of the at least one optical fiber is arranged at the rear end of the pencil casing such that a light source, which is present there, can be used to inject light to said light entry surface. The light exit surface of the optical fiber exits at the forward end of the pencil casing.

Abstract: The invention relates to an optical rotary transmitter for transmitting optical signals, comprising a first light coupler (1) that has one or a plurality of first light guides (11) the end faces of which are designed to transmit optical signals and are arranged on a first ring about a central rotational axis Z, a second light coupler (3) that has one or a plurality of second light guides (31) the end faces of which are designed to transmit optical signals and are arranged on a second ring about the central rotational axis Z, a fibre mirror (5) comprising a plurality of third light guides that are arranged between said two light couplers (1,3) and are designed to compensate for the effect, on the transmission of the optical signals, of the two light couplers (1,3) rotating relative to one another, the end faces of the third light guides being designed to transmit optical signals and arranged on a third and fourth ring about the central rotational axis Z.

Abstract: The invention relates to an apparatus for the optical transmission of digital data having a signal source (1) which is designed to output optical signals at a level which is modulated on the basis of the digital data to be transmitted. The invention provides a fluorescing optical fiber (3) which is arranged such that the optical signals from the signal source (1) are received via a peripheral area which is entered by fluorescing optical fiber (3) which are converted therein into a fluorescent light signal by means of fluorescence, said fluororescent light signal being mounted to a fibre end (5) via the optical fibre (3).

Abstract: The invention relates to a device for determining the position of a signal source configured to emit signals modulated by a modulation frequency, comprising: a conductor arranged in such a way that it receives the modulated signals at various positions along the conductor and configured to conduct the modulated signal, respectively in opposite directions, to a first conductor end and to a second conductor end when a modulated signal is received; a detector configured to acquire the modulated signal at the first conductor end and at the second conductor end; and a determination apparatus configured to: determine a phase difference between the modulated signal acquired at the first conductor end and the modulated signal acquired at the second conductor end, and determine the position of the signal source in relation to the conductor on the basis of the phase difference.

Abstract: An optical rotary transmitter which ensures the reliable transmission of optical signals in conjunction with a comparatively simple construction comprises two parts spaced apart from one another which are rotatable relative to one another about a common centre axis and the first of which comprises a first circular light coupler (10) and the second of which comprises a second circular light coupler (20). The light entrance and light exit surfaces of the two light couplers face one another. Each of the light couplers (10, 20) consists of collimators (11, 21) combined to form a respective collimator arrangement (16, 26), optical coupling elements (15, 25) being connected to said collimators.

Abstract: An optical fiber sensor has a measurement path and a reference path. Both paths each consist of two optical fibers and are fed with modulated light. The fibers of the reference path have a predefined difference in length, whereas the fibers of the measurement path are the same length. All fibers are at approximately the same temperature. An evaluation circuit determines the phase differences in each case between the fibers of the measurement path and of the reference path. A measurement value calculated from the phase differences is then output.

Abstract: A pencil has a pencil casing made of a sharpenable casing material and a core held in a central receiving bore in the casing material that extends in the longitudinal direction of the pencil. One or more optical fibers made of a sharpenable material is/are arranged in the pencil casing. The optical fiber or optical fibers extends in the longitudinal direction as well and are at least partially surrounded by the material of the pencil casing. A light entry surface of the at least one optical fiber is arranged at the rear end of the pencil casing such that a light source, which is present there, can be used to inject light to said light entry surface. The light exit surface of the optical fiber exits at the forward end of the pencil casing.

Abstract: A tracking unit for solar collectors has at least two panels, which can each be pivoted about a longitudinal axis. The axes are arranged on a rotable frame on one plane. The position of each axis within the individual panels is offset by a offset ?x in relation to the adjacent panels. The individual panels are moved by means of a lifting mechanism that pivots each of the panels about the same angle. This arrangement significantly reduces mutual shading and increases efficiency by about 10%.

Abstract: An optical fiber sensor has a measurement path and a reference path. Both paths each consist of two optical fibers and are fed with modulated light. The fibers of the reference path have a predefined difference in length, whereas the fibers of the measurement path are the same length. All fibers are at approximately the same temperature. An evaluation circuit determines the phase differences in each case between the fibers of the measurement path and of the reference path. A measurement value calculated from the phase differences is then output.

Abstract: A device for receiving optical signals comprising a light-guiding object having an irradiation surface for receiving optical signals adjacent to a propagation path along which light primarily travels within the light-guiding means. The light-guiding object is substantially constructed of a synthetic material capable of causing elastic dispersion of optical signals received through the irradiation surface at angles between about 0 and 90 degrees relative to the irradiation surface. The synthetic material is further capable of undergoing a population inversion by energetic excitation. The system further includes an excitation unit for inducing a population inversion within the synthetic material. An optical signal is coupled into the light-guiding means through the irradiation surface resulting in a radiation component of the optical signal in the direction of the propagation path of the light-guiding object due to elastic dispersion of the optical signal caused by the synthetic material.

Abstract: An optical transfer device for transferring optical signals from a moveable part to a stationary part through an optical transfer medium in order to minimize distortions of the optical signal and increase the effective bandwidth of the signal transit path by minimizing and/or maintaining equal alternate optical signal transit paths from the transmitter to the receiver.

Abstract: The invention relates to a device for transmitting optical signals between at least two components disposed for rotation. The invention excels itself by the provision that at least one micro-optical component is used for beam forming or beam guidance.

Abstract: A device for the generation of white light serves in particular for the illumination of the interior of the eye. A semiconductor laser (10?) emits radiation in the blue/violet/ultraviolet region of the spectrum, which is coupled into an optical waveguide (18?). The optical waveguide (18?) is doped with fluorescent dyes (26). By superposition of the fluorescent radiations white light is generated at the end (22?) of the optical waveguide.

Abstract: In a device of the invention for transmitting modulated optical signals between a first unit and a second unit, the first unit is supported to be rotatable relative to the second unit. The device comprises a light guide along a circular track on the first unit, a first light coupler for coupling light into or out of the light guide, and a second light coupler for coupling light into or out of the light guide and disposed on the second unit and movable relative to the means for guiding light. For an achievement of a high quality of transmission, a regulating means for the position of the coupling elements relative to the light guide, or a hydrodynamic bearing means is provided. An optical light-guiding fiber of the invention for conveying optical signals from an optical transmitter to an optical receiver has a light exit face and means for deflecting light emerging from the fiber in a direction that deviates from a longitudinal axis of the fiber.

Abstract: A device and a method for detecting deposits on surfaces includes a body having a surface on which deposits occur and influence reflection properties of the surface to electromagnetic radiation. A transmitter transmits electromagnetic radiation to the body and a detector detects the presence of the deposits at the surface. The detector measures electromagnetic radiation received from the transmitter after reflection at the surface. Preferably, the device and method are used in a liquid-conveying machine, particularly, a washing machine and/or a dishwasher. Particularly, light is introduced into the light-guiding body to detect the presence of the deposits. The light is internally reflected by the surface and is guided to a sensor. If deposits occur on the surface, the deposits affect the light-reflecting properties of the surface, and the affect is detected by the sensor.

Abstract: In a device of the invention for transmitting modulated optical signals between a first unit and a second unit, the first unit is supported to be rotatable relative to the second unit. The device comprises a light guide along a circular track on the first unit, a first light coupler for coupling light into or out of the light guide, and a second light coupler for coupling light into or out of the light guide and disposed on the second unit and movable relative to the means for guiding light. For an achievement of a high quality of transmission, a regulating means for the position of the coupling elements relative to the light guide, or a hydrodynamic bearing means is provided. An optical light-guiding fiber of the invention for conveying optical signals from an optical transmitter to an optical receiver has a light exit face and means for deflecting light emerging from the fiber in a direction that deviates from a longitudinal axis of the fiber.

Abstract: A device for the generation of white light serves in particular for the illumination of the interior of the eye. A semiconductor laser (10′) emits radiation in the blue/violet/ultraviolet region of the spectrum, which is coupled into an optical waveguide (18′). The optical waveguide (18′) is doped with fluorescent dyes (26). By superposition of the fluorescent radiations white light is generated at the end (22′) of the optical waveguide.

Abstract: The present invention relates to a device for cutting polymeric optical waveguides (POF-LWLs), comprising a lower clamping jaw (2), an upper clamping jaw (3), and a blade (4), the lower and upper clamping jaws (2,3) holding the POF-LWL (5) to be cut at both sides of the cutting point, seen in the axial direction, by application of a radial pressure.