Abstract: The invention provides a light output system for delivering light to a region of interest, for providing at least a minimum light intensity to all of the region of interest. The system has more light sources of a particular kind than are needed to reach the minimum light intensity (to all of the region of interest), and they are operated with a duty cycle. The duty cycle ratio is reduced by a factor which is greater than the factor by which the number of light sources in increased above the minimum number, so that energy savings are obtained as well as an increased lifetime of the system.

Abstract: The invention provides a light output system for delivering light to a region of interest, for providing at least a minimum light intensity to all of the region of interest. The system has more light sources of a particular kind than are needed to reach the minimum light intensity (to all of the region of interest), and they are operated with a duty cycle. The duty cycle ratio is reduced by a factor which is greater than the factor by which the number of light sources in increased above the minimum number, so that energy savings are obtained as well as an increased lifetime of the system.

Abstract: In a system (1) comprising a radiation body (10), a radiation arrangement (20), a detector arrangement (30) and a controller arrangement (40), the controller arrangement (40) is configured to put a UV radiation source (21) of the radiation arrangement (20) from a default state to a state of reduced radiation intensity when detection results demonstrate occurrence of a disturbance incident that is indicative of touch on a radiation exit window (11) of the radiation body (10). In particular, at least one radiation source (21) of the radiation arrangement (20) is configured to emit polarized radiation (22), and the detector arrangement (30) is configured to detect at least one of intensity of polarized radiation of the source polarization orientation and intensity of polarized radiation of orthogonal polarization orientation, wherein a change of the at least one of those intensities is taken as an indication of occurrence of a disturbance incident.

Abstract: In a system (1) comprising a radiation body (10), a radiation source (20) configured to emit radiation (21) at least comprising UV radiation, a detector (30) configured to detect an internal radiation intensity in the radiation body (10), and a controller arrangement (40), the controller arrangement (40) is configured to apply a safety algorithm after occurrence of a disturbance incident caused by an object (2) contacting a radiation exit window (11) of the radiation body (10). The safety algorithm involves setting an evaluation state of the radiation source (20) during evaluation periods separated by evaluation intervals while otherwise setting an adapted state of the radiation source (20), and determining a value of the internal radiation intensity during the evaluation periods in order to assess whether it is safe to restore the normal state of the radiation source (20).

Abstract: A system (1) comprises a radiation body (10), a radiation arrangement (20) configured to provide radiation at least comprising UV radiation (23) to the radiation body (10), a detector arrangement (30) configured to detect an internal radiation intensity of radiation (25) in the radiation body (10) at at least one detector position, and a controller arrangement (40) configured to control the radiation arrangement (20) in dependence on input from the detector arrangement (30). When the input from the detector arrangement (30) indicates a change of the internal radiation intensity that can be assumed to follow from an event of touch on a radiation exit window (11) of the radiation body (10), an action of temporarily changing a state of at least one UV radiation source (21) of the radiation arrangement (20) from a maintenance state to a disinfecting state of increased intensity of the UV radiation (23) is performed.

Abstract: The present invention concerns a process for the deposition of a solder-through polymer coating on an uncoated printed circuit board which comprises the use of an average low power and low pressure plasma polymerisation in a polymerisation chamber of an organosilane precursor monomer which is introduced into said polymerisation chamber by means of a carrier gas, said organosilane being of the Formula Y1-X—Y2 (I) or —[Si(CH3)2-X-]n- (II), wherein: X is O or NH; Y1 is —Si(Y3)(Y4)Y5; Y2 is Si(Y3?)(Y4?)Y5?; Y3, Y4, Y5, Y3?, Y4?, and Y5? are each independently H or an alkyl group of up to 10 carbon atoms; the monomer of formula (II) is cyclic wherein n is 2 to 10, and wherein at most one of Y3, Y4 and Y5 is hydrogen, at most one of Y3?, Y4? and Y5? is hydrogen and the total number of carbon atoms is not more than 20.

Abstract: A method of protecting a component from corrosion and providing electrical conductivity to one or more electrical contacts on the component, the method including the steps of placing the component in a chamber, and coating the component by plasma deposition of a polymer coating formed from any one or more of the following precursor monomers, acrylate, methacrylate or organosilane.

Abstract: A patient interface comprises a patient interface element for delivering a gas a patient, and a forehead support. An improved adjustment mechanism is provided for the forehead support.

Abstract: The present disclosure provides an electronic device and related method, wherein the device has a polymeric coating with low toxicity. The polymeric coating formed by exposing the electronic device to continuous plasma comprising a compound of CH2?C(R1)—COO—R2, where R1 includes —H or —CH3; and where R2 includes —(CH2)2—(CF2)m—CF3 and m is 3 or 5.

Abstract: The invention relates to a conformal nanocoating applied by a low pressure plasma process. The invention also relates to a method for making such a conformal nanocoating on a three-dimensional nanostructure, in particular a three-dimensional structure containing electrically conductive and non-conductive elements.

Abstract: The present disclosure provides an electronic device and related method, wherein the device has a polymeric coating with low toxicity. The polymeric coating formed by exposing the electronic device to continuous plasma comprising a compound of CH2?C(R1)—COO—R2, where R1 includes —H or —CH3; and where R2 includes —(CH2)2—(CF2)m—CF3 and m is 3 or 5.

Abstract: A kit of parts assembles into a tool support using an elongate beam such as a wooden joist provided by the purchaser of the kit. The kit includes a pair of uprights suitable for clamping onto spaced apart positions on the beam. A tool supporting member also mounts onto the beam, intermediate the uprights and includes a supporting surface for supporting a tool, for example a saw, thereon. The kit includes minimal components to be transported from site to site by the user. The kit also occupies minimal space when separated from the beam such that retailers are only required to stock minimal parts on store shelves at reduced cost as the user can supply their own beam.

Abstract: A method of manufacturing a dynamic groove bearing having parts rotatable relative to one another. The bearing parts include cooperating bearing surfaces and a pattern of grooves by means of a metal-removing tool. A first bearing part is fastened to a rotatable support of a machine tool, which is rotated in a constant direction. The tool is periodically displaced relative to the first bearing part parallel to a direction transverse to the bearing surface of the first bearing part by a positioning device with a frequency which is determined by a product of a rotation frequency of the support and a number of grooves on the bearing surface of the first bearing part. The tool is periodically displaced in a sinusoidal movement and the positioning device may include a piezoelectric actuator (95). A data storage unit including dynamic groove bearings is also provided.

Abstract: Input apparatus for a data processing system. An input apparatus, for example a mouse or a track ball, comprises a member which is rotatable by manipulation by a user. The rotation causes a change of a magnetic field, which change is detected by a detector. The member in the apparatus in accordance with the invention comprises a non-homogeneous distribution of a soft-magnetic material which, upon rotation, changes a magnetic field externally applied to the member by a magnet.

Abstract: A flat display device is provided with a wire cathode or wire cathodes and with apertures which allow passage of electrons emitted by the wire cathode. The wire cathode is stretched in a wire-cathode support having positioning grooves for the wire cathode. This support engages the element in which the passages are made. The support and the element are provided with corresponding contacting surfaces.

Abstract: A control arrangement (10) for a shut-off valve actuable by vacuum and intended for use in vacuum waste water systems, comprising a first valve (14) which is actuated by static pressure of collected waste water, and including a chamber (56) which can be put under vacuum via the first valve, whereby a second valve (20), charged by a spring (71), is abruptly opened when the pressure in the chamber drops below a preset level, so that vacuum reaches the shut-off valve and opens it, and, in case static pressure is reduced, the first valve closes and the chamber is gradually ventilated until the pressure in this chamber reaches a preset level at which the second valve and in turn the shut-off valve abruptly close.

Abstract: The invention relates to a control arrangement (10) for a shutoff valve, actuated by application of negative pressure, for use in a negative pressure wastewater system. The control arrangement includes a chamber (28) in which a main piston (22) is displaced as a function of negative pressure and a driver by way of which valves (70, 72) are actuated so as to operate independently of each other; the valves (70, 72) transmit or inhibit negative pressure to open or close a wastewater aspiration valve and a ventilation valve.

Abstract: An improvement in a method of preparing 1,1-difluoroethylene from 1,1-difluoroethane by photochlorinating 1,1-difluoroethane to 1,1-difluoro-1-chloroethane and immediately thereafter reacting the reaction products of the photochlorination at a temperature between 550 and 750.degree. C. without isolation of the 1,1-difluoro-1-chloroethane, the improvement residing in employing as the difluoroethane charge an unrefined product of the hydrofluorination of acetylene which unrefined reaction product contains up to 3 volume percent acetylene and a maximum of 8 volume percent vinyl fluoride, especially a unrefined reaction product in which the difluoroethane has not been isolated.

Abstract: Method of preparing 1,1-difluoroethylene from 1,1-difluoroethane by photochlorinating 1,1-difluoroethane to 1,1-difluoro-1-chloroethane and immediately thereafter reacting the reaction products of the photochlorination at temperatures between 550 and 750.degree. C. without isolation of the 1,1-difluoro-1-chloroethane.

Abstract: A process for preparing 1,1-difluoroethane by contacting acetylene with hydrogen fluoride in the presence of an aluminum fluoride containing catalyst, the hydrofluorination being carried out at a temperature between 150 and 350.degree. C. employing a residence time of one to 60 seconds. The catalyst employed is one prepared by imbibing gamma or eta aluminum oxide with a solution of a bismuth salt and a manganese salt. The so-imbibed catalyst is heated at a temperature between 150 and 250.degree. C. initially in a nitrogen atmosphere and then, after complete drying, in a mixture of air employing increasing concentrations of hydrogen fluoride up to 100 percent hydrogen fluoride atmosphere. The finished catalyst contains:0.1 to 20 weight percent of bismuth,0.1 to 10 weight percent of manganese,20 to 38 weight percent of aluminum,32 to 60 weight percent of fluorine,The balance consisting essentially of oxygen.