Abstract:
The invention provides an energy generation system comprising a generator having charged mutually rotating plate elements, and comprising an integrated drive mechanism for precisely controlling a separation distance between the plates. The drive mechanism provides a separation which varies as a function of the speed of rotation, hence assimilating separation control within the natural operation of the device. Embodiments provide plates comprising self-generating bearings, both hydrodynamic gas and fluid bearings and centrifugal regulator solid bearings, the bearings providing a supporting force between the plates of a magnitude which increases as the rotational speed of the plates increases. Methods of energy generation are also provided.
Abstract:
The invention concerns a method for 3D printing an object (6, 7), the method comprising the steps of providing a layer of a liquid silicone material (42) on a translation platform (2) of a 3D printing device (1, 10) and/or on a previously cured layer of the liquid silicone material arranged on the translation platform, the translation platform being adapted for performing a translatory movement in at least one direction, selectively curing the liquid silicone material in successive layers by moving a beam (33) of IR radiation emitted by a light source (31) across a surface (44) of the liquid silicone material (42) in a pre-defined pattern by means of a scanning device (32), and performing a translatory movement of the translation platform in the at least one direction upon finishing the curing of each of the successive layers. The invention further concerns a corresponding 3D printing device (1, 10).
Abstract:
The present invention relates to lighting module, wherein a light exit window (12) of the lighting module is engraved such that the output color temperature of said lighting module is tuned. The present invention also relates to a method for tuning an output color temperature of a lighting module, said method comprising providing said lighting module comprising a light exit window (12), and a light source arranged to provide light having an optical path through said light exit window (12), said lighting module having a first output color temperature; and engraving a surface of said light exit window (12) such that the output color temperature of said lighting module is tuned to a second output color temperature.
Abstract:
An energy conversion system comprises a generator which generates electrical power in response to movement, wherein the generator comprises first and second elements which generate energy in an energy generation mode. In some examples, these can be brought into and out of contact with each other by a drive mechanism so that the energy conversion system has an (e.g.) intermittent charging mode in which the first and second 5 elements are brought into contact by the drive mechanism and an energy generation mode in which the first and second elements are out of contact. The relative speed, the spacing between, or the relative orientations or positions of the first and second elements are controlled during the energy generation mode to decrease the variation in output power or voltage of the generator. This system controls the physical positions or the motion of the 10 elements of the generator during the energy generation mode in order to implement a more constant power or voltage generation. This enables any required power conversion circuitry to be simplified.
Abstract:
The invention provides a power generation device comprising at least two generating arrangements, each adapted to generate a voltage output through the relative motion of two differently charged generating elements, the generating elements having some separation distance (which may be zero or non-zero). The arrangements are co-operatively configured in such a way that the separation distances between their respective elements are reciprocally related: an increase in one leads to a related decrease in the other. By combining these two signal outputs, a single voltage, current or power output may be provided in a self- regulating manner by the device whose amplitude is substantially independent of any changes or variations in the separation distance between elements of either of the two arrangements.
Abstract:
A triboelectric energy generator (1) comprises a first generating element (8) and a second generating element (10). The first generating element comprises a first triboelectric material (9) and the second generating element comprises a second triboelectric material (13). Movement of the second generation element relative to the first generation element results in an output voltage, as a consequence of the triboelectric effect. A stopper (7) is configured to restrict rotation of the second generating element, so that the second generating element may only rotate through a desired angle.
Abstract:
The invention provides a device for generating electrical currents of a particular desired waveform through the combining of a plurality of different frequency output currents generated by plurality of power generating arrangements. The power generating arrangements each comprise at least first and second sets of generating elements, configured to hold a relative charge and to be moveable with respect to one another in order to generate an electrical output current of a particular frequency.
Abstract:
A device (100A) for treating skin (S) comprises a skin treatment member, a skin contacting surface (107), a mounting member (104) for mounting the skin treatment member (110) and the skin contacting surface (107), and friction controlling means (124, 126, 134) configured and arranged to control friction between the skin contacting surface (107) and the skin (S) to be treated, in at least one controlled friction area (122) of the skin contacting surface (107), during use when the skin contacting surface (107) is moved over the skin (S). In particular, the friction controlling means (124, 126, 134) are adapted to introduce a slip motion of the controlled friction area (122) relative to the mounting member (104) in a direction corresponding to a local direction of extension of the skin contacting surface (107). The device comprises sensing means (130, 138) configured and arranged for detecting a first parameter, which is related to an amount of friction between the skin contacting surface (107) and the skin during use, and the friction controlling means are adapted to control a second parameter of the slip motion in dependence on a value of the first parameter detected by the sensing means (130, 138). The first parameter is for example an actual motion direction of the device relative to the skin during use, or an amount of skin doming of the skin in a hair-entry aperture of the skin treatment member. The second parameter is for example a frequency or amaximum velocity of the slip motion.