Abstract: A solar concentrator device comprising a solar concentrator element comprising a radiation transmissive surface, a radiation absorptive material and a radiation concentrating/collection point and disposed on the incident radiation side thereof a recapture element for recapturing at least a portion of radiation lost from the concentrator element has improved solar radiation collection efficiency by reintroducing recaptured radiation into the concentrator element or by propagating said recaptured radiation through the recapture element to a radiation concentration point associated with the recapture element. It has been found that planar elements having a grooved or corrugated outer surface make for very good recapture elements for planar concentrator elements.

Abstract: A solar concentrator device comprising a solar concentrator element comprising a radiation transmissive surface, a radiation absorptive material and a radiation concentrating/collection point and disposed on the incident radiation side thereof a recapture element for recapturing at least a portion of radiation lost from the concentrator element has improved solar radiation collection efficiency by reintroducing recaptured radiation into the concentrator element or by propagating said recaptured radiation through the recapture element to a radiation concentration point associated with the recapture element. It has been found that planar elements having a grooved or corrugated outer surface make for very good recapture elements for planar concentrator elements.

Abstract: A solar concentrator device comprising a solar concentrator element comprising a radiation transmissive surface, a radiation absorptive material and a radiation concentrating/collection point and disposed on the incident radiation side thereof a recapture element for recapturing at least a portion of radiation lost from the concentrator element has improved solar radiation collection efficiency by reintroducing recaptured radiation into the concentrator element or by propagating said recaptured radiation through the recapture element to a radiation concentration point associated with the recapture element. It has been found that planar elements having a grooved or corrugated outer surface make for very good recapture elements for planar concentrator elements.

Abstract: An indicator device includes a surface provided with at least one channel or at least one through-hole with at least two openings, wherein flowable material in an immobile state is provided adjacent to the channel or adjacent to a first opening of the through-hole, such that after application of a stimulus the material is directed along the channel by the action of capillary forces or into the at least one through-hole by the action of capillary forces and emerges at a second opening, thereby providing an indication of the application of the stimulus.

Abstract: A method and device for periodically perturbing the flow field within a microfluidic device to provide regular droplet formation at high speed.

Abstract: A method and device for passively periodically perturbing the flow field within a microfluidic device to cause regular droplet formation at high speed.

Abstract: A method and device for passively periodically perturbing the flow field within a microfluidic device to cause regular droplet formation at high speed.

Abstract: A method and device for periodically perturbing the flow field within a microfluidic device to provide regular droplet formation at high speed.

Abstract: The invention provides a method of patterning flowable material on a surface. The method comprises providing the surface with at least one channel and at least one deposition region connected to the at least one channel, the width of the channel being less than the width of the deposition region, and depositing flowable material in the deposition region such that when the material makes contact with the channel the material is directed into said channel by capillary forces, the receding contact angle of the flowable material in the deposition region being less than 30°.

Abstract: A solar concentrator device comprising a solar concentrator element comprising a radiation transmissive surface, a radiation absorptive material and a radiation concentrating/collection point and disposed on the incident radiation side thereof a recapture element for recapturing at least a portion of radiation lost from the concentrator element has improved solar radiation collection efficiency by reintroducing recaptured radiation into the concentrator element or by propagating said recaptured radiation through the recapture element to a radiation concentration point associated with the recapture element. It has been found that planar elements having a grooved or corrugated outer surface make for very good recapture elements for planar concentrator elements.

Abstract: The invention provides a multilayer electronic device having electrodes, formed on a laterally extending first layer, the lateral position of each of at least two adjacent electrodes being defined by a channel in the first layer. Each channel is adjacent a deposition region, the material which forms each electrode substantially covering the deposition region to form a continuous conductive structure.

Abstract: An indicator device includes a surface provided with at least one channel or at least one through-hole with at least two openings, wherein flowable material in an immobile state is provided adjacent to the channel or adjacent to a first opening of the through-hole, such that after application of a stimulus the material is directed along the channel by the action of capillary forces or into the at least one through-hole by the action of capillary forces and emerges at a second opening, thereby providing an indication of the application of the stimulus.

Abstract: A method of patterning a substrate according to several steps, including: a) mechanically locating a first masking film over the substrate; and b) segmenting the first masking film into a first masking portion and one or more first opening portions in first locations. Next, mechanically locate a first removal film over the first masking portion and first opening portions. Afterwards, one or more of the first opening portions are adhered to the first removal film. The first removal film and one or more of the first opening portions adhered to the first removal film are mechanically removed to form one or more first openings in the first masking film. Finally, materials are deposited over the substrate through the first openings in the first masking film.

Abstract: A multiple layer photosensitive element having at least three differently sensitised photosensitive layers on one side of a support, such as a, transparent flexible support, is imagewise exposed according to a desired circuit pattern and developed to form two layers of conductive track patterns from each photosensitive layer, which may then be connected together by forming vias by drilling or in situ generation. The resulting multiple layer conductive element has application in the field of printed circuit board manufacture or as the backplane electronic element of a flexible display device.

Abstract: A method of producing an address plate comprising the steps of; coating a layer of conducting inorganic material onto a substrate, coating a layer of photoresist above this layer of conductive material and curing this layer, exposing, through a mask, the desired pattern of the conductors onto the layer of photoresist, developing the photoresist and etching the layer of the conductive material and coating the resulting etched layer with a layer of dielectric material. A further layer of photoresist is then applied, the thickness of this layer being equal to the desired height of a relief pattern, curing the further layer of photoresist, exposing, through a second mask, the desired structure of the relief pattern onto the layer of photoresist, developing the photoresist and allowing the layer to dry. This results in spacers raised above the layer of dielectric material.

Abstract: A device comprises one or more dielectric layers, one side of the layer or layers being conductive. A hydrophobic layer is provided on the other side of the dielectric layer. First and second fluids are located on the surface of the hydrophobic layer, the fluids being immiscible with each other. The first fluid comprises at least one ionic liquid. The conductive layer and first fluid are arranged such that they can be electrically connected.

Abstract: Conductive tracks are formed on a support by providing a coated support where the coating is susceptible to forming a latent image upon pressure-exposure (e.g. a coating of a silver halide emulsion in gelatin), pressure exposing said coated support according to a desired track pattern to form a latent image of the track pattern and developing the latent image to form a conductive metal track pattern corresponding to the latent image. The latent image may be formed, for example, by applying pressure using a stylus or scalpel, an engraved stamp or a roller carrying a relief pattern. The method is capable of forming conductive tracks at very high resolution (e.g. 10 ?m or less), optionally on a flexible support.

Abstract: The invention provides a method of producing a mirror under a layer of hydrophilic colloid (8) onto a transparent conducting layer (4) by coating the layer of hydrophilic colloid (8) onto the conductive substrate (4), placing the coated substrate in a plating solution (100), and passing current through the solution (100).

Abstract: A method of forming a patterned, light-emitting device that includes mechanically locating a first masking film over a substrate; forming first openings in first locations in the masking film; and depositing first light-emissive materials over the substrate through the first openings in the first masking film. Subsequent steps include mechanically removing the first masking film; mechanically locating a second masking film over the substrate in a position that prevents particulate contamination in the first locations; and forming second openings in the second masking film. The second openings are in different locations over the substrate than the first openings. The first locations are protected from particulate contamination resulting from the formation of the second openings. Additional steps include depositing second light-emissive materials over the substrate through the second openings in the second masking film; and mechanically removing the second masking film.

Abstract: A method of producing a patterned mirror on a transparent conductive substrate comprises the steps of; coating a layer of conductive material onto a substrate, coating a layer of metal onto the layer of conductive material, coating a layer of photoresist onto the layer of metal, curing the layer of photoresist, exposing a desired pattern of transparent conductors through a first mask onto the layer of photoresist, developing the photoresist and simultaneously etching the layer of the conductive material and the layer of metal, exposing a desired pattern of metal conductors through a second mask onto the remaining layer of photoresist, developing the photoresist and etching the layer of metal.