Abstract: A driver circuit includes: a rectifier for exchanging a first current signal having a first frequency with an active fluorescent ballast, and for supplying a second current signal to a load which includes at least one light emitting diode; a switch circuit coupled to or forming part of the rectifier and configured to control an amount of power supplied to the load; and a controller configured to control the switch circuit. The switching frequency of the switch circuit is less than or equal to twice the first frequency. The controller is configured to synchronize the switching frequency of the switch circuit and the switching frequency of the active electronic ballast, which is equal to the first frequency.

Abstract: A therapeutic apparatus (400, 500) comprising a radiotherapy apparatus (402), a mechanical positioning system, and a magnetic resonance imaging system (404). The radiotherapy apparatus comprises a radiotherapy source (408). The radiotherapy apparatus is adapted for rotating the radiotherapy source at least partially around a subject support. The therapeutic apparatus further comprises a memory containing machine executable instructions (468, 470, 472, 474, 476).

Abstract: Group coaching system includes at least a first and a second coaching device, the first device being configured to provide respective first user coaching information to a respective user of the first device, and the second device being configured to provide respective second user coaching information to a respective user of the second device, wherein the system is configured to provide a group coaching of the users of the devices utilizing the respective user coaching information provided by the coaching devices.

Abstract: The invention relates to a lighting system comprising: —a substrate comprising a resistive sheet (RS) comprising multiple electrodes (A, B, C, D), each electrode being suitable for connection to a respective voltage source, —a plurality of lighting elements (LEI, LE2, LE3, LE4), each element comprising a light source (LED) and at least two contact pins (CP1, CP2) for electrical connection to respective electrical connection terminals and a control circuit for controlling the light output and/or the color of the light generated by the light source in dependence on the voltage between the contact pins, wherein the electrical connection terminals are distributed over the resistive sheet such that the lighting elements can be connected in different positions and in different orientations, wherein the voltage present between the contact pins depends on the position and orientation of the lighting element and wherein the light output and/or the color of the light generated by the lighting element depends on the mag

Abstract: An illumination device comprising a light source (110). The illumination device comprises a thermally conducting carrier (130) arranged to support the light source. Furthermore, the illumination device comprises an envelope (120), wherein the carrier and the envelope together form a single compartment (140) at least partially enclosing the light source. The carrier is arranged to transfer heat (160) away from the light source to the envelope, and the envelope is arranged to dissipate heat (170) away from the illumination device. The carrier and the envelope of the illumination device may further form a single integrated part.

Abstract: There is disclosed an optical beam deflection arrangement which may be used in an autostereoscopic display device. The arrangement comprises a substrate; a first layer, for example formed of an optically isotropic solid and having a curved surface facing towards the substrate; and a second layer, for example formed of a liquid crystal material confined between the substrate and the first layer. An interface between the first and second layers may, for example, define an array of parallel lenticulars. A refractive index of the second layer, for light of a predetermined polarization, maybe switchable between a first value matching the refractive index of the first layer and a second value different to the refractive index of the first layer, to thereby selectably provide a beam deflection function.

Abstract: Light source circuitry comprises a first group of one or more light emitting diodes operable to emit light of a first color, a second group of one or more light emitting diodes operable to emit light of a second color, and a third group of one or more light emitting diodes operable to emit light of a third color, wherein the first, second and third groups of light emitting diodes are arranged such that, when a fixed current arrives at the light source circuitry, the fixed current is shared between the first, second and third groups, and wherein the circuitry is configured such that a proportion of the fixed current that flows through each of the first and second groups is controllable in dependence on a received control signal and such that the remainder of the fixed current flows through the third group.

Abstract: An instrument system that includes a first optical fiber, a second optical fiber and a controller is provided. The first optical fiber is operatively coupled to an elongate body that is adapted to be placed inside a patient. The second optical fiber is operatively coupled to the patient, to an actuating element adapted to actuate the elongate body, or to a portion of an imaging system adapted to identify a location of the portion relative to the elongate body. The controller is operatively coupled to the first optical fiber and the second optical fiber and is adapted to receive a first signal from the strain sensor provided on the first optical fiber, receive a second signal from the strain sensor provided on the second optical fiber; and determine a position or orientation of the elongate body based on the first signal and based on the second signal.

Abstract: An instrument system that includes an optical fiber and a controller is provided. The optical fiber is coupled to an external structure of a patient and has a strain sensor provided thereon. The controller is operatively coupled to the optical fiber and adapted to receive a signal from the strain sensor and to determine a property of respiration of the patient based on the signal.

Abstract: The invention relates to a method and a lighting device for generating light. The lighting device has at least one light source connected to two receiving-electrodes, at least two supply-electrodes for generating an electrical field, wherein the relative configuration between the receiving-electrodes and the electrical field can change. Such a change may, for example, come about by a movement of the receiving-electrodes relative to the electrical field and/or by changing the configuration of the electrical field. The light source and/or the receiving-electrodes may be embedded in a non-solid filling of a container. Thus three-dimensional structures of light sources can be designed in which the light sources may optionally be movable.

Abstract: A low-voltage power supply apparatus (900A) providing power to an neutral-less two-wire electronically controlled switch, including a first power supply (901) having a first DC bus (910+, 910?) electronically coupled to a rectifier bridge (906) and a first flyback converter (991). The rectifier bridge receives an AC signal from an AC source and provides a first DC voltage at the first DC bus, the first flyback converter receives the DC voltage and outputs a first low-voltage signal (Vout). A second power supply (905) having a second DC bus (909+, 909?) is electronically coupled to a controllable rectifier bridge (966) and a second flyback converter (971). The controllable rectifier bridge receives the AC signal from the AC source and provides a second DC voltage at the second DC bus. The second flyback converter receives the second DC voltage and outputs a second low-voltage signal (Vout).

Abstract: A lighting arrangement (100), comprising at least one LED lighting device (105, 105?, 105?) comprising a LED controller which is adapted to collect and communicate a required power usage of the LED lighting device (105, 105?, 105?), at least two power source units (101, 111) each connected and adapted to supply power to the LED lighting device (105, 105?, 105?), and a cluster controller (106), which is adapted to collect characteristics of each power source unit (101, 111) and the characteristics of the at least one LED lighting device (105, 105?, 105?), wherein the cluster controller (106) is further adapted to activate and/or deactivate at least one of the at least two power source units (101, 111) in accordance with the requested power usage of the lighting arrangement (100) and the characteristics of the power source units (101, 111) in order to activate the power source unit or power source units (101, 111) that is or are the best adapted to the requested power usage.

Abstract: The present invention relates to a device for the specific selection of target molecules, wherein immobilized capture molecules can be organized in a microarray in the form of spots or lines. In a further aspect the present invention relates to a method of specifically selecting target molecules in a reaction zone, as well as the use of such a device for specifically selecting target molecules, e.g. for target enrichment, or microarray based genome selection (MGS).

Abstract: A color-adjustable light emitting arrangement is provided. The arrangement includes a solid-state light source adapted to emit light of a first wavelength range; a wavelength converting member arranged to receive light emitted by the light source and capable of converting light of the first wavelength range into visible light of a second wavelength range; and a narrow band reflector arranged in a light output direction from the wavelength converting member to receive light of the second wavelength range, the narrow band reflector being reversibly switchable between a first state in which the narrow band reflector reflects a first sub-range of the second wavelength range, and a second state in which the narrow band reflector reflects a second sub-range of the second wavelength range.

Abstract: According to an aspect of the present invention, a lighting device (2) is provided. The lighting device (2) comprises a wavelength converting layer (21) having a curved shape and a light source (22) arranged to emit light towards the wavelength converting layer (21). The wavelength converting layer (21) intersects a plane extending through the light source (22) and being parallel with the optical axis of the light source (22), at a curve given, in a polar coordinate system centered at the light source (22), by the equation: R(?)=k·I(?)1/2±D, wherein k is a constant, 0 is an angle with respect to said optical axis, /(?) is a function defining a luminous intensity profile of the light source and D is a deviation ranging from zero to 20% of the maximum value of said curve, Rmax. The present invention is advantageous in that the lighting device (2) has a more uniform color distribution of emitted light across the wavelength converting layer (21) and the risk of color gradients and artifacts is reduced.

Abstract: A lighting system comprises a set of light sources and a remote control unit. The remote control unit comprises a user interface through which a user may identify an area in an image and a light source. The identified image area is linked with the light source and color information of the identified image area is transmitted to the light source. The light source is thereby enabled to adapt its light output to the color information. A user is thereby enabled to pick the color to be outputted by a light source by selecting an area in an image displayed on the remote control unit. The remote control unit may be part of a mobile telephone, a tablet computer, an electronic photo frame, or a television screen.

Abstract: A method for controlling an angular distribution of a light-beam emitted by a light-output device (102, 200) comprising a first set of light-sources (105, 211) comprising at least one light-source configured to emit light within a first angular range (221, 231, 241) and second set of light-sources (107, 210) comprising at least one light-source configured to emit light within a second angular range (222, 232, 242), wherein the first angular range is different from the second angular range. The method comprises the steps of: receiving (401) a dimmer setting (VDS) from a dimmer (101); controlling (404), if the dimmer setting is within a first predetermined range, the first set of light-sources to emit light within the first angular range; and controlling (405), if the dimmer setting is within a second predetermined range, the second set of light-sources to emit light within the second angular range.

Abstract: A lighting device or a lamp bulb (100, 200) with a smooth appearance comprises at least one light source (101); a heat sink component (104, 204), having a bottom (1043) and a side wall (1044) extending from the bottom (1044), wherein the bottom (1043) comprises a protrusion (1041) and wherein the at least one light source (101) thermally contacts the protrusion (1041) of the heat sink component (104, 204); and a cover provided on the sidewall (1044) opposite to the bottom (1043), thereby defining an air chamber (1051, 2051) between the cover, the side wall (1044), the bottom (1043) and the protrusion (1041).

Abstract: A lighting device has an array of light emitting diodes (LEDs), an adhesion layer having portions with photo-activated electrical conductivity over the LEDs, and electrically charged scattering particles adhered by electrostatic attraction to the adhesion layer portions, thereby forming scattering regions that are self-aligned to the light emitting diodes. A method for manufacturing the lighting device includes photo-activating the adhesion layer using light output from the light emitting diodes to locally vary the conductivity of the adhesion layer; and attaching electrically charged scattering particles to the adhesion layer by electrostatic attraction.

Abstract: An instrument system that includes an elongate body in a geometric configuration, an optical fiber, and a controller is provided. The optical fiber is operatively coupled to the elongate body and has a strain sensor provided on the optical fiber, wherein at least a portion of the optical fiber is in the geometric configuration. The controller is operatively coupled to the optical fiber and adapted to receive, from a source other than the optical fiber, information indicative of the geometric configuration, receive a signal from the strain sensor, and associate the signal with the geometric configuration.