Abstract: A stator (1) is provided, comprising a lamination stack (10) having a plurality of segments (20) being connected to each other by means of respective folding joints (30), wherein at least one folding joint (30) is arranged radially inwards of a virtual circumference (27) corresponding to the maximum radius (R2) of the lamination stack (10). The stator (1) further comprises a plurality of insulators (40), wherein at least one insulator (40) comprises an end part (48, 49) extending axially out from the lamination stack (10), and wherein a radial space is provided between the outer circumference of the end part (48, 49) and the outer periphery of the laminator stack (10).

Abstract: This invention relates to the design of apparatus for processing electronic devices, including equipment for chemical vapor deposition or transport polymerization. The new designs of gas separator plates, their configuration, and the regulation of gas flows through the system provides control over the pattern of precursor gas flow away from the separation plates, thereby decreasing the amount of byproducts that are deposited on the plates and throughout the reactor. New designs for shaping other surfaces of the dispersion head reduces contamination of those elements, and new designs for chamber panels decrease the deposition of byproducts on those surfaces, as well as other elements of the reactor. Decreasing deposition of byproducts increases the amount and the quality of the film that can be deposited without requiring the system to be shut down for cleaning.

Abstract: This invention relates to the design of apparatus for processing electronic devices, including equipment for chemical vapor deposition. The new designs of gas separator plates, their configuration, and the regulation of gas flows through the system provides control over the pattern of precursor gas flow away from the separation plates, thereby decreasing the amount of byproducts that are deposited on the plates and throughout the reactor. New designs for shaping other surfaces of the dispersion head reduces contamination of those elements, and new designs for chamber panels decrease the deposition of byproducts on those surfaces, as well as other elements of the reactor. Decreasing deposition of byproducts increases the amount of thin film, and the quality of the film which can be deposited without requiring the system to be shut down. This increases the throughput of products in the deposition process, thereby increasing the efficiency of electronic device manufacture and lowering the cost.

Abstract: A color printing system including thin film electroluminescent (TFEL) edge emitter devices and an electronic interface for driving the TFEL devices. The TFEL edge emitter devices form a multi-color TFEL edge emitter structure operable for emitting a plurality of different colors of light onto a media. The electronic interface receives gray scale data for pixels and converts it into a serial data stream used to drive pixels in the TFEL edge emitter structure. The electronic interface further includes a compensation memory for compensating for pixel variations in the TFEL structure. The compensation memory can be periodically recalibrated "in place" during the life of the printing apparatus.

Abstract: An improved facsimile machine having at least one edge emitting thin film electroluminescent line array, each array having a plurality of pixels wherein the pixels are selectively activated. A light beam from each pixel is directed to a known point along a line on a document and reflects to a sensor. The reflected beam corresponds to a grey level at the point of reflection on the document and causes the sensor to generate a signal corresponding to that greyness level. Sufficient pixels are provided to generate sufficient light beams to strike all points along a line across a document.

Abstract: A TFEL edge emitter assembly has a TFEL edge emitter module composed of a substrate and an EL stack supported on the substrate and having a light-emitting front edge, and a covering of solid material overlying the EL stack and attached to the substrate. The solid covering produces a hermetical seal with the substrate which substantially encompasses the EL stack and provide an optically transparent medium having a refractive index between that of the EL stack and air.

Abstract: A TFEL edge emitter structure has a bottom substrate layer, a lower common electrode layer applied over the bottom substrate layer an upper control electrode layer, and a middle EL light-energy generating stack disposed between the lower common electrode and the upper control electrode layers. The middle EL stack includes a lower dielectric layer, an upper dielectric layer, and a middle light-energy generating layer. The lower dielectric layer overlies the lower common electrode layer and bottom substrate layer. The middle light-energy generating layer is deposited over the lower dielectric layer. The upper dielectric layer is deposited over the middle light-energy generating layer. A light emitting face on a front edge of the EL stack is disposed at an angle relative to a street on the front edge portion of the substrate layer that is greater than ninety degrees.

Abstract: A projection apparatus is provided which produces a heads-up display in a helmet of the type commonly worn by a pilot. The projection apparatus includes a thin-film electroluminescent source having an edge emitter device provided therein. The edge emitter produces a linear signal which is transversely deflected by a scanner to produce an image on a display area. Preferably, the display area is provided on the face plate of a helmet worn by the pilot.

Abstract: A thin film electroluminescent edge emitter structure includes a common electrode layer and control electrodes disposed above the common electrode layer. At least one dielectric layer is disposed between the common electrode layer and control electrodes, and a phosphor layer is interposed between the one dielectric layer and common electrode layer. The common electrode layer, one dielectric layer and the phosphor layer define the light-emitting pixels of the emitter structure. Each pixel has a light-emitting face formed thereon and is operable upon application of electrical excitation to cause the radiation of light energy within its phosphor layer at least in a direction towards the pixel light-emitting face.

Abstract: A TFEl structure has a multi-layer construction which includes a bottom substrate layer, a lower electrode layer, a middle EL stack, and an upper electrode layer. Forward portions of the EL stack and the lower and upper electrode layers have formed therethrough a series of longitudinal channels and a transverse street connecting the channels and extending along a forward edge of the bottom substrate layer so as to define a plurality of pixels having light-emitting front edges setback from the forward edge of the bottom substrate layer by the width of the street. Rearward portions of the lower and upper electrode layers respectively underlie and overlie a rearward portion of the EL stack but not each other so as to electrically isolate the rearward portions of the lower and upper electrode layers from one another. Also, a bus bar layer overlies the rearward portion of the EL stack and crosses the rearward portion of the upper electrode layer.

Abstract: A thin film electroluminescent edge emitter structure includes a common electrode layer and control electrodes disposed above the common electrode layer. At least one dielectric layer is disposed between the common electrode layer and control electrodes, and a phosphor layer is interposed between the one dielectric layer and common electrode layer. The common electrode layer, one dielectric layer and the phosphor layer define the light-emitting pixels of the emitter structure. Each pixel has a light-emitting face formed thereon and is operable upon application of electrical excitation to cause the radiation of light energy within its phosphor layer at least in a direction towards the pixel light-emitting face.

Abstract: A TFEL edge emitter structure with an EL stack having a linear array of spaced-apart pixels with front edge faces emitting light of non-uniform intensity from different regions has an uniform light emission filter provided across the light-emitting faces of the pixels. The filter takes the form of an exposed photographic emulsion coated directly to the light-emitting faces of the pixels. Alternatively, the filter takes the form of a separate substrate containing the exposed photographic emulsion mounted across the light-emitting faces of the pixels. The exposed emulsion is darker at regions thereof which correspond to regions of the light-emitting edge faces of the pixels with higher original light intensity and lighter at regions thereof which correspond to regions of the light-emitting edge faces of the pixels with lower original light intensity.

Abstract: A facsimile machine having a thin film electroluminescent pixel array which is used as the controlled light beam source for creating an image on a photoreceptive copying apparatus when the machine is in a write mode and using the same TFEL pixel array as a source of illuminating light to the scanning sensor when the machine is in the read mode. In other embodiments the primary light emission from the pixel array is used in the write mode and secondary emission from the pixels is used for the illuminating source in the read mode. Embodiments of the TFEL array structure include combination with scanning sensors on the same substrate. Other embodiments include the scanning sensor and the pixel array on separate substrates positioned in generally parallel planes.

Abstract: A thin film electroluminescent (TFEL) edge emitter module and packaging assembly is composed of a TFEL edge emitter module including an electroluminescent (EL) stack having a linear array of spaced-apart pixels with light-emitting front edges, an enclosure defining a sealed cavity which encloses at least a portion of the EL stack so as to sealably enclose the array of pixels in a contaminant-free environment, a thermally expansive and contractive liquid substantially filling the sealed cavity, and a cavity capacity expansion and contraction mechanism disposed in the enclosure in communication with the cavity and the liquid therein. In response to thermal expansion of the volume of the liquid filling the cavity, the capacity expansion and contraction mechanism is operable to change from a first condition toward a second condition and thereby increase the liquid-holding capacity of the enclosure cavity.

Abstract: A thin film electroluminescent edge emitter assembly includes an edge emitter structure disposed on a layer of substrate material. The structure has a configuration to define a linear array of spaced-apart, light-emitting pixels. A packaging assembly surrounds at least a portion of the edge emitter structure to enclose the linear array of light-emitting pixels in a contaminant-free environment. At least the wall of the packaging assembly adjacent to the array of pixels is made from a translucent material to permit light energy emitted by selected pixels of the array interior to the packaging assembly to pass through the wall of the packaging assembly.

Abstract: A thin film electroluminescent edge emitter structure operable as an electronically controlled, high resolution light source includes a plurality of TFEL assemblies disposed in array-like fashion on a layer of substrate material. Each TFEL assembly includes a first layer of electrically conductive material, a second layer of electrically conductive material spaced from the first electrically conductive layer and an electrically energizable, light-emitting composite layer interposed therebetween. At least the second electrically conductive layer of each TFEL assembly is segmented to provide a plurality of second electrically conductive elements, and the plurality of second electrically conductive elements in combination with the remaining layers of the assembly form a pixel group including a plurality of individual light-emitting pixels.

Abstract: An electrophotographic-type imaging station or printer includes a focusing lens positioned between the printer light source and a photosensitive medium. As the light source projects beams of light energy forming a row in a direction towards the photosensitive medium, the lens focuses each projected beam into a rectangular beam. The speed of the photosensitive medium and the operation of the light source are coordinated so that adjacent rows of generally rectangular beams are positioned in abutting relation with each other. The plurality of focused rows projected in row-at-a-time fashion onto the surface of the photosensitive medium form an informational array pattern having a resolution in a direction parallel with the direction of medium movement which is greater than the resolution of the pattern in a direction perpendicular to the direction of medium movement.

Abstract: A thin film electroluminescent edge emitter structure operable as an electronically controlled, high resolution light source includes a plurality of TFEL assemblies disposed in array-like fashion on a layer of substrate material. Each TFEL assembly includes a first layer of electrically conductive material, a second layer of electrically conductive material spaced from the first electrically conductive layer and an electrically energizable, light-emitting composite layer interposed therebetween. At least the second electrically conductive layer of each TFEL assembly is segmented to provide a plurality of second electrically conductive elements, and the plurality of second electrically conductive elements in combination with the remaining layers of the assembly form a pixel group including a plurality of individual light-emitting pixels.

Abstract: A method for defining an array of light-emitting pixels in a thin film electroluminescent edge emitter structure includes the steps of moving the structure in proximity to a stationary first laser source as the first laser source is operated to generate a plurality of first laser pulses. The plurality of first laser pulses are focused into "lines" of light energy that strike the structure at a plurality of spaced apart locations in succession to ablate a predetermined number of layers of the structure. This ablation process forms a plurality of spaced apart channels in the structure. The portions of the structure remaining between each pair of adjacent channels define an array of pixels in the structure. The structure having the pixels formed therein is moved in proximity to a second laser source. The second laser source is movable in a selected direction substantially perpendicular to the direction of movement of the structure.