Abstract: A flexible electrically conductive article is disclosed comprised of an organic film, a conductive crystalline cuprate layer, and a release layer that together form a flexible electrically conductive assembly. The article is prepared by forming a conductive cuprate layer on a refractory substrate with the release interposed. After the cuprate layer is formed, the organic film is bonded to it, permitting the cuprate layer to be stripped intact from the substrate with the organic film. A crystal growth accelerating agent can be associated with the cuprate layer during its formation to minimize the heat energy required for crystallization.

Abstract: The invention comprises applying to a substrate a precursor of an organo-metallic compound, the precursor preferably consists of one or more pairs of ligand substituted Group III and V elements. The precursor is decomposed and deposits onto a receiving layer held at the decomposing temperature of the vaporized material.

Abstract: Thick film circuit elements are disclosed comprised of an insulative substrate selected from the group consisting of strontium titanate, magnesia, alumina, and aluminum nitride, and providing a conductive path between at least two locations on the substrate, a crystalline rare earth alkaline earth copper oxide layer exhibiting a superconducting onset transition temperature in excess of 77.degree. C. comprised on an R.sub.1 A.sub.2 C.sub.3 crystalline phase.

Abstract: A metalorganic deposition method is disclosed for manufacturing a superconducting oxide film on a substrate, in which a mixed metalorganic precursor is coated and heated to its thermal decomposition temperature to create an amorphous mixed metal oxide layer. The amorphous layer is then converted to a crystalline coating by further heating followed by cooling in the presence of O.sub.2 atmosphere.

Abstract: A light modulator device for use in a light valve imaging system to image print media with different light colors comprising a panel of electro-optic material of the type which changes the polarization of transmitted light selectively upon application of an electric field and a plurality of electrode pairs, linearly spaced along the panel to define an array of modulator gap portions between respective electrode pairs. The modulator gap portions associated with different color filters have a different dimension selected respectively to effect maximum light transmission for different light colors under address by approximately the same voltage.

Abstract: An electronic imaging system for light exposing a linear image zone at relatively high resolution which comprises a light source array having a plurality of selectively activatable pixel exposing elements of approximately equal width (W) spaced at generally equal linear intervals (S), means for forming an image of the light source array at a linear image zone and means for scanning the light source array image linearly along the image zone in number of successive increments (M) wherein M is an integer approximately equal to (S.div.W).multidot.X, and X is the number of different colors to be exposed during a line scan.

Abstract: A construction for reducing image artifacts in electro-optic imaging apparatus of the kind having (i) a linear array of spaced, selectively activatible, light valve elements having generally equal element widths, (ii), an optical system for forming an image of the light valve at a linear image zone and (iii) a mirror for scan-indexing the array image along said image zone. The spacings between array elements increase progressively from the center to the ends of the array to obviate under or over scan of adjacent image regions.

Abstract: A system for improving the uniformity of light valve imaging apparatus of the kind having an array of spaced light valve portions, a source for directing generally uniform illumination through the light valve portions, and means for scan-indexing the light valve image along an image zone. The improved system comprises source-scan means for scanning the source illumination onto the light valve array in synchronism with the scan-indexing of the light valve image.

Abstract: An improved light valve device of the kind having: (i) an electro-optic modulator panel with a plurality of electrodes defining a linear array of selectively activatable modulation zones in the panel and (ii) a pair of polarizer elements sandwiching such panel and oriented with their polarization directions at 90.degree. relative to one another. The polarization directions of the polarizers are respectively parallel and perpendicular to the linear direction of the modulation zones array and the electrodes are constructed to provide electric fields across the modulation zones in directions approximately 45.degree. to the linear direction of the modulation zones array.

Abstract: A linear light valve array having transversely driven, discretely addressable, electro-optic gates which selectively change the polarization of incident light is disclosed. The array has a plurality of spaced gates. Each gate includes a planar light receiving top surface which receives incident polarized light, and first and second spaced parallel electrode receiving surfaces that are arranged substantially normal to the top receiving surface. Discretely addressable electrodes are formed on such receiving surfaces. In response to an applied voltage, the electrodes of a gate establish a transverse electric field which changes the plane of polarization of light passing through the gate and substrate. In another aspect of this invention, a method of making such a linear light valve array is disclosed. In accordance with this method, a strip of photoresist material is formed on a wafer of electro-optic material. Grooves are then cut in the wafer on each side of the strip.

Abstract: An electrooptic device for scanning and information modulating a plurality of light beams across an image zone is disclosed. The device includes a substrate formed of electrooptic material that changes its birefringence in response to an electric field established therein. A time-varying electric field is established in a portion of the substrate which varies the substrate refractive index so as to deflect an incident linear light beam. The device includes a lens arrangement which forms the deflected light beam into a plurality of beams focused at the image zone, and a light valve array which has a pixel portion for each focused light beam. Voltage signals applied to selected ones of a plurality of modulating electrodes of the light valve array cause selected ones of the array pixel portions to change their birefringence and change the polarization vector of their focused light beams as the beams are scanned across the image zone.

Abstract: Static electrical-field address of an electro-optic panel having opposing first and second dielectric surfaces sandwiching a two-dimensional light-modulating region is accomplished by: (i) applying a reference potential sequentially to successive lines of the first surface and (ii) applying, in synchronism with each such reference potential application and in accordance with image line information, separate signal potentials to the plurality of discrete pixel address zones located along a line of the second surface that is directly opposite such reference potential application. A two-dimensional electrostatic charge pattern corresponding to the image is formed on the one surface. Thereafter, ground potential is applied to portions of the first surface contiguous the charge pattern and portions of the second surface directly opposite the charge pattern.

Abstract: An electro-optic modulator comprises a panel of electro-optic material containing a plurality of pixel regions which are activatable from an isotropic to birefringent state by application of an electric field, each pixel region including at least four linear electrodes extending transversely thereacross in a regularly spaced relation. In one preferred embodiment such electrodes have gaps therebetween in the range from about 50 microns to about 100 microns. In a related aspect the intra-pixel electrodes of each pixel region have a width in the range of from about 25 microns to 75 microns. In another aspect such electrodes can have one of several preferred structural configurations facilitating electrical addressing.

Abstract: Two panels, each having a plurality of electrically-addressable, parallel light valve strips are arranged along an optical axis between entrance, exit and intermediate polarizing means. The strips of the respective panels are generally perpendicular and the entrance and exit polarizing means have their directions of polarization mutually aligned and perpendicular to the intermediate polarizing means. By sequentially activating the strips of a first panel and imagewise addressing the strips of the other panel during each such sequential activation an area image is formed.

Abstract: Electronic light valve of the kind having an imaging zone, an imagewise addressable light valve array, and means for directing illumination to the imaging zone via the array, operably associated with such apparatus, for reducing inter-pixel variation in light transmitted to the imaging zone. One disclosed embodiment includes a photo-bleachable mask having pixel portions corresponding to pixels of the light valve array, which have been photo-bleached and fixed at density levels compensating for such nonuniformities. Another embodiment includes a pixel mask comprising negative working photographic emulsion which has been exposed and developed to different compensating density levels.

Abstract: Electronic imaging apparatus and method of the kind utilizing a light valve array including a line of discretely-addressable pixels activatable between a light transmitting and light blocking state by an electrical field features addressing of such pixels by means of a plurality of discrete sub-period activations which in combination effect proper transmission for a line of the image to be reproduced. In one embodiment the sub-period activations are of different duration and binarily related.

Abstract: An optical-address device, useful e.g. in electronic imaging, features (i) a lens array including a plurality of discrete lens means, each adapted to focus incident collimated light, from a plurality of different incidence directions, onto respectively different pixel spots of its associated multi-spot address zone (of a multi-zone, optical-address region) and (ii) light directing structure for sequentially illuminating the lens array with collimated light of different incidence directions. Printer apparatus, scanner apparatus and scanner/printer apparatus incorporating such optical-address device are disclosed.

Abstract: Apparatus for scanning succesive lines of a color original moved past a scan station includes: (1) photodetector means, (2) illuminating means for producing a plurality of discrete color separation illuminations of said detector means, via each passing original line, (3) a light valve array having discretely activatible pixel portions aligned with pixels of said scan station to control color separation illumination of the photodetector means and (4) scan address means for activating pixel portions of the array in a predetermined serial sequence and in timed relation with movement of the original.

Abstract: A two-dimensional illuminating array comprising discretely addressable pixel portions (e.g. a light valve array) is imaged by lens means onto optical mapping means (e.g. a light diffracting or refracting array). The mapping means re-images the pixel portions of the illuminating array as a predetermined line pixel pattern at a linear pixel region.

Abstract: Light valve imaging apparatus utilizes an area light valve array to effect high pixel resolution exposure of a line of record medium passing through an area exposure region during a plurality of partial-line-exposure sub-periods.