Abstract: The invention provides a device for the controlled positioning of droplets of a substance onto a substrate, the device comprising at least a print head comprising a nozzle provided to eject the droplet, the inkjet device further comprising a control camera arranged such that after ejection of the droplet out of the nozzle, the droplet is detected by the control camera. In case either the droplet volume or velocity or flight path or viscosity or surface tension start to deviate from preset values, the software can correct for this in a closed loop manner. If the droplet is not ejected at all, the control software stops the printer and an operator can maintain the print head.

Abstract: In an embodiment, an imprint lithography apparatus is disclosed that includes a support structure configured support an imprint template, the imprint template having a neutral plane which substantially bisects the imprint template, and an actuator located in a position such that, when the imprint template is supported by the support structure, the actuator is located between the support structure and a side of the imprint template, wherein the actuator is configured to meet the imprint template at a location which is displaced from the neutral plane of the imprint template.

Abstract: A lithographic apparatus is disclosed that has an imprint template or a template holder configured to hold an imprint template, and a substrate table arranged to receive a substrate, the apparatus further comprising walls which together with the substrate table and the imprint template or the template holder, are configured to form an enclosed space which is substantially sealed from a surrounding area.

Abstract: A method of depositing an imprintable medium onto a target area of a substrate for imprint lithography is disclosed. The method includes moving the substrate, a print head comprising a nozzle to eject an imprintable medium onto the substrate, or both, relative to the other in a first direction across the target area while ejecting a first series of droplets of imprintable medium onto the substrate and moving the substrate, the print head, or both, relative to the other in a second opposing direction across the target area while ejecting a second series of droplets of imprintable medium onto the substrate on or adjacent to droplets from the first series of droplets.

Abstract: An imprintable medium dispenser includes a chamber, a nozzle, and an actuator connected to the chamber and configured to be actuated and thereby generate a pressure wave within the chamber such that imprintable medium is dispensed from the nozzle. The imprintable medium dispenser is provided with a control circuit which includes a monitoring apparatus configured to receive a transient oscillation signal generated when the actuator is actuated, and to monitor the operation of the imprintable medium dispenser by monitoring the transient oscillation signal.

Abstract: The invention relates to a robot vacuum cleaner for cleaning surfaces (9), which robot vacuum cleaner is provided with a housing (1), a suction unit (3) accommodated in the housing, a suction nozzle (7) mounted to the housing so as to be present near the surface in operation, a motor-drivable wheel system (13) by which the housing can be displaced over the surface, and an electrical control unit (17) for controlling a displacement of the housing generated by the wheel system. According to the invention, the displacement of the housing controlled by the control unit (17) includes a substantially cycloid movement brought about by a rolling movement of an imaginary rolling circle (37) along an imaginary line of displacement (39) of the housing over the surface, the imaginary rolling circle extending parallel to the surface (9) and being fixed with respect to the housing (1), and the suction nozzle (7) being eccentrically arranged with respect to the rolling circle.

Abstract: The present invention relates to a method and an apparatus for forming light-emitting diodes (LEDs) on a substrate, and more specifically for producing LED display screens. The method comprises the steps of: simultaneously depositing a plurality of dots on the substrate to form light-emitting pixels of the same color; and repeating said depositing step in at least one displaced position on the substrate.

Abstract: The invention relates to a robot vacuum cleaner for cleaning surfaces (9), which robot vacuum cleaner is provided with a housing (1), a suction unit (3) accommodated in said housing, a suction nozzle (7) mounted to the housing so as to be present near the surface in operation, a motor-drivable wheel system (13) by means of which the housing can be displaced over the surface, and an electrical control unit (17) for controlling a displacement of the housing generated by means of the wheel system.