Abstract: A process is disclosed of producing on a crystalline silicon substrate a barrier layer triad capable of protecting a rare earth alkaline earth copper oxide conductive coating from direct interaction with the substrate. A silica layer of at least 2000 .ANG. in thickness is deposited on the silicon substrate, and followed by deposition on the silica layer of a Group 4 heavy metal to form a layer having a thickness in the range of from 1500 to 3000 .ANG.. Heating the layers in the absence of a reactive atmosphere to permit oxygen migration from the silica layer forms a barrier layer triad consisting of a silica first triad layer located adjacent the silicon substrate, a heavy Group 4 metal oxide third triad layer remote from the silicon substrate, and a Group 4 heavy metal silicide second triad layer interposed between the first and third triad layers.

Abstract: A short detection system for a continuous ink jet printer includes an electrically conductive sensor element located along an ink egress passage of the printer's catcher; a dielectric surface formed along the drop impact region of the catcher, between the drop electrodes and the sensor element; and signal circuit responsive to a charge polarity reversal output by the sensor for signalling a charge electrode short condition.

Abstract: A packet for daylight-handling of photosensitive film and a cooperating holder mountable on a camera back. The packet has film removably attached to a carrier. The carrier has an asymmetrical tab at one end and a transverse light-locking element at its opposite end. Telescopically receivable over the carrier and film is a light-shielding envelope. The envelope has an open end that is closable by engagement with the light-locking element and a closed end with a squeezable area that overlies and, when grasped, squeezes the tab, to prevent inadvertent separation of the envelope from the carrier. An adjacent area, not overlying the tab, is graspable for pulling the squeezable area free of the tab and the envelope away from the film, to permit intended exposure. The envelope also has, near its open end, a stop strip for limiting envelope movement.

Abstract: This invention relates to a method for reducing a nitro group substituent on an aromatic compound to an amino group and is characterized by treatment of the compound in the presence of iron or zinc and a halogen-containing aliphatic carboxylic acid.

Abstract: Apparatus and a method are described, wherein a coagulator accelerator is added to a container to achieve agglutination of blood cells when centrifuging whole blood, allowing the serum to be more easily poured off. The accelerator is selected from polymeric amines that are either polymerized amino acids or vinyl addition polymer amines, with a specified molecular weight range, the vinyl addition amines being selected to avoid lysing the blood cells.

Abstract: A double coated radiographic element is disclosed which exhibits a crossover of less than 5 percent and which is provided with a first silver halide emulsion layer unit on one side of its transparent film support that exhibits an average contrast of less than 2.0 and a second silver halide emulsion layer unit on the opposite side of the silm support that exhibits an average contrast of at least 2.5.

Abstract: Data printing device for a camera which takes normal and pseudo type images wherein the characters are printed near an edge of the selected image area in both the normal and pseudo modes, optionally with reduction in character size in the pseudo mode.

Abstract: A flexible coupling for effecting a precisely aligned and repeatable blind mounting of the driver and driven halves thereof at a single time and in a single stage. The drive half can toggle and includes a plurality of multi-length teeth, and the driven half includes a rotatable disc member having a plurality of overlapping sloped slots for fully receiving and engaging the multi-length teeth of the driver half at the time and stage when the driven half is axially moved into the driver half by only a small axial force.

Abstract: In a camera for exposing a filmstrip normally stored in a light-tight cassette which is inherently capable of thrusting the filmstrip out of the cassette regardless of the exposure condition of the filmstrip but has a film-exposure status indicator movable from an unexposed position for providing a visible indication that the filmstrip is generally unexposed, to a partly exposed position for providing a visible indication that the filmstrip is partly exposed, and to an exposed position for providing a visible indication that the filmstrip is substantially exposed, apparatus is provided for preventing exposure of the filmstrip when the status indicator is in its exposed position and for permitting exposure of the filmstrip when the status indicator is in its unexposed or partly exposed position.

Abstract: A line sensor with photosites accurately located for color scanning. The sensor includes a plurality of photosites arranged in a two-dimensional, staggered pattern which is repeated across the length of the sensor. Only one photosite is located for every direction perpendicular to the axis of the line image. Individual color filters extend over all the photosites located at the same perpendicular distance from the line image axis. In one embodiment, the filters are disposed on separate transparent members which are aligned and assembled over the photosites.

Abstract: An intensifying screen for producing a latent image in a silver halide radiographic element when imagewise exposed to X-radiation is disclosed. The screen contains a phosphor having a hafnia host containing zirconia in concentrations higher than those found in optical grade hafnia. The phosphor can include as an activator one or a combination of titanium, rare earth, and alkali metal ions. Phosphor preparation processes are also disclosed.

Abstract: An amorphous thin magnetic film having stabilized uniaxial anisotropy of thickness 200-1000 angstroms is fabricated from an alloy of composition CoX where X is one of the elements Zr, Nb, Mo, Ta, Ru, Rh, Pd, Hf, Ti, W, Re, Os, Ir. The invention teaches setting the magnitude of the uniaxial anisotropy of the film at a predetermined magnitude and stabilizing the anisotropy against long term change through (1) the addition of controlled amounts of silicon to the alloy, (2) cladding each face of the film with an Si02 layer, and (3) stabilizing and annealing the resultant clad film in a two step process.

Abstract: Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: ##STR1## where each R is an alkyl group, n is 1 to 3, X is an anion, m is 1 to 6, Y is a divalent aromatic radical, and R.sup.1 is hydrogen or a blocking group.

Abstract: A fuser and pressure roller type fusing apparatus for fusing toner images onto a suitable receiver in an electrostatographic copier or printer includes a passive release oil application cartridge for positively supplying and applying release oil to the surface of the fuser roller therein. The cartridge includes a release oil reservoir, a release oil application roll which contacts and is driven by the rotation of the fuser roller, and an oil feeding and pumping assembly for delivering oil from the reservoir to the application roll.

Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are disclosed as filter dyes for photographic elements. In this formula, n is 0 or 1.R.sub.1 is CO.sub.2 H or NHSO.sub.2 R.sub.2 where R.sub.2 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl.R.sub.3 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl.Z represents the atoms necessary to complete a substituted or unsubstituted heterocyclic nucleus.

Abstract: An additive display is driven from a digital source, such as a frame memory, to produce red and blue luminances that exceed the respective white point luminances of the display, thus producing saturated colors including red and blue and accordingly extending the gamut of the display system. The signals input to the frame memory are initially processed by a circuit, such as a color matrix, that is capable of corrections exceeding the white point of the image source. The processed signals are then encoded with more "headroom" for exceeding the respective white points of red and blue color values than for green color values. In one embodiment, the full red and blue bit resolution is bit-shifted and stored in the frame memory, with the red and blue white points stored as lesser code values than the green white point. The display drive signals produced from the encoded color values are then equalized for a common white point signal value before being applied to the additive display, such as a color CRT monitor.

Abstract: The present invention relates to an optoelectronic integrated circuit which includes a body of a group III-V semiconductor material containing a laser diode, a photodiode and/or field effect transistors. The body includes isolation regions extending partially therethrough which electrically isolate the laser diode from the photodiode and the field effect transistors. However, the isolation regions are at least partially transparent to light so as to allow some of the light generated by the laser diode to reach the photodiode. The laser diode, photodiode and/or field effect transistors are electrically connected by conductive patterns on the body so as to form a desired circuit for controlling the laser diode. The body defines a laser diode having a multiple quantum well active layer sandwiched between two cladding layers. The photodiode may also be formed by the active layer and cladding layers or can be formed by filling a trench in the body with a semiconductor material.

Abstract: An interference fit elastomer covered roller including a shaft and an elastomeric tube covering the shaft, for use in contact with fluids includes fluid seals at the ends of the shaft comprising a topographical feature on the shaft defining at least one circumferential edge at a change in radius of hte shaft, effective for concentrating stress in the elastomeric tube around the edge to provide liquid sealing action.

Abstract: In accordance with the process of the invention, there is formed electro-optical, barium lanthanum titanium niobate having a general uniform grain size of about 2 to about 20 microns. This material is formed using a raw material that comprises commercially available oxided particles of lanthanum, titanium, and niobium and carbonate of barium. The particles are calcined and then sintered under pressure, heat, and vacuumed to form a sintered mass. The mass is cooled in a controlled manner and then sliced to form wafers. The wafers are then heated in an oxidizing atmosphere to form the transparent electro-optical materials.

Abstract: Disclosed are poly-methine compounds having the formula: ##STR1## wherein R.sup.1 is an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; an unsubstituted or substituted carbamoyl radical; or an unsubstituted or substituted alkylsulfonyl, cycloalkylsulfonyl or arylsulfonyl radical, or an unsubstituted or substituted aryl radical;R.sup.2 is an unsubstituted or substituted alkyl, cycloalkyl or aryl radical;R.sup.3 is hydrogen, alkyl, --OR.sup.2 or halogen; andL is an organic linking group bonded by non-oxo carbon atoms to the oxygen atoms adjacent to L. Also disclosed are admixtures of about 100 to 10,000 ppm of at least one of the poly-methine compounds and certain condensation polymers. The resulting polymer compositions are useful to protect substrates or materials susceptible to degradation by ultraviolet light.