Abstract: A control circuit comprises a combination of two or more nonlinear resistor elements having a common electrical junction and a nonlinear current/voltage characteristic, the impedance at the common electrical junction being controlled in accordance with switching voltages applied to the nonlinear resistor elements. These nonlinear resistor elements may be connected to one terminal of a load element, such as a liquid crystal element or a printing element. An array of such load elements, such as printing elements or liquid crystal elements of the microencapsulated type, combined with these nonlinear resistor elements form, respectively, a printing engine or display device. The nonlinear resistor elements are composed of semiconducting or conducting powder particles bonded together with an insulating or semiconducting binder.

Abstract: A solid state radiation sensor array panel comprising a thick deposited radiation detector layer capable of generating electron-hole pairs in response to being irradiated, and a matrix array of transistors comprising source and drain electrode elements, a charge transport layer, and a dielectric layer disposed over one surface of the detector layer. Means is provided for establishing an electric field across the detector layer, which field is collapsible to establish a higher field in irradiated areas so as to establish a current path, between the source and drain electrode elements, through pixel areas of the charge transport layer. The currents passing through pixel areas are passed to a readout circuit for processing the radiation image information.

Abstract: A radioactive light source consists of a vacuum tight envelope filled with a mixture of a radioactive gas such as tritium with one or more other gases which luminesce when excited by the emission from the radioactive gas without the aid or requirement of any externally applied energy source, such as electrical power. This luminescence may be viewed through the wall of the chamber which may be transparent. Alternatively, all or a part of the luminescence may be converted to a different region of the spectrum by a suitable phosphor layer coated on the wall of the envelope.

Abstract: A recording and readout information system having atomic scale densities comprises a recording medium having a carrier and means to form a pattern of atomic particles on the surface of the carrier. The atomic particles having an affinity for the carrier and can adhere to the surface to form a relatively adhesive and stable bond. The pattern of atomic particles produced on the carrier are representative of recorded information, e.g. binary represented information, of ultra high density based upon the size and spacing of such particles, which is in the range, for example of 5 .ANG. (0.5 nm) to 10 .ANG. (1 nm). A preferred embodiment of the invention comprises a recording medium with an adsorbent carrier, means to form a pattern of adsorbate atomic particles on the surface of the adsorbent carrier, the absorbate atomic particles having an adsorptive affinity for the adsorbent carrier.

Abstract: A recording and readout information system having atomic scale densities comprises a recording medium having a carrier and means to form a pattern of atomic particles on the surface of the carrier. The atomic particles having an affinity for the carrier and can adhere to the surface to form a relatively adhesive and stable bond. The pattern of atomic particles produced on the carrier are representative of recorded information, e.g. binary represented information, of ultra high density based upon the size and spacing of such particles, which is in the range, for example, of 5 .ANG. (0.5 nm) to 10 .ANG. (1 nm). A preferred embodiment of the invention comprises a recording medium with an adsorbent carrier, means to form a pattern of adsorbate atomic particles on the surface of the adsorbent carrier, the adsorbate atomic particles having an adsorptive affinity for the adsorbent carrier.

Abstract: A recording and readout information system having atomic scale densities comprises a recording medium having a carrier and means to form a pattern of atomic particles on the surface of the carrier. The atomic particles having an affinity for the carrier and can adhere to the surface to form a relatively adhesive and stable bond. The pattern of atomic particles produced on the carrier are representative of recorded information, e.g. binary represented information, of ultra high density based upon the size and spacing of such particles, which is in the range, for example, of 5 .ANG. (0.5 nm) to 10 .ANG. (1 nm). A preferred embodiment of the invention comprises a recording medium with an adsorbent carrier, means to form a pattern of adsorbate atomic particles on the surface of the adsorbent carrier, the adsorbate atomic particles having an adsorptive affinity for the adsorbent carrier.

Abstract: A recording and readout information system having atomic scale densities comprises a recording medium having a carrier and means to form a pattern of atomic particles on the surface of the carrier. The atomic particles having an affinity for the carrier and can adhere to the surface to form a relatively adhesive and stable bond. The pattern of atomic particles produced on the carrier are representative of recorded information, e.g. binary represented information, of ultra high density based upon the size and spacing of such particles, which is in the range, for example, of 5 .ANG.(0.5 nm) to 10 .ANG.(1 nm). A preferred embodiment of the invention comprises a recording medium with an adsorbent carrier, means to form a pattern of adsorbate atomic particles on the surface of the adsorbent carrier, the adsorbate atomic particles having an adsorptive affinity for the adsorbent carrier.

Abstract: Improved high brightness vacuum fluorescent display (VFD) devices are disclosed. In one case, an improved bistable phosphor view tube comprises a writing gun control grid, a writing gun anode and deflection means supported in a vacuum sealed tube envelope for deflecting an electron beam across a phosphor target layer at the front face of the tube wherein the improvement comprises an area cathode supported in close spaced proximity to the target layer to produce a two dimensional flood electron current over the full extent of the target phosphor target layer. In another case, an improved vacuum fluorescent display device utilizes phosphor anode elements that are electrically floating to function as a bistable elements wherein the phosphor layer portions may be selectively change to a stable second equilibrium potential state or remain at a stable first equilibrium potential state.

Abstract: A transparent electrode has a grating formed thereon, the dimensions of the grating selected to prevent light transmission at a given wavelength or range of wavelengths. A non-wetting transparent liquid covering the grating is held in place by a second electrode. Application of an electrical field between the electrodes causes the liquid to be drawn into the space between the grating ridges, allowing light transmission.

Abstract: To form an optical image, an imagewise pattern of conductivity is formed in a semiconductor material. Exposing the material to an intense radio-frequency field causes generation of heat in the conductive areas. The semiconductor is made of a heat-sensitive material or includes a heat-sensitive material. The heat-sensitive material responds to heat by physical changes which can be optically detected. Preferably the semiconductor is a photoconductor with surface charge capability retention which allows formation of a conductivity pattern by normal xerographic processes.

Abstract: A thin vacuum panel cathode ray display device for providing visible information upon a phosphor layer, on a viewing wall, in response to electron beam excitation. Electron beams are generated by cathodes on an electron source wall spaced from the viewing wall. The cathodes comprise an array optical waveguides each coated with a photoemissive material. Between the cathode array and the phosphor layer, and adjacent to the cathodes, is an array of grid members for selectively controlling the flow of electrons to the phosphor layer in response to low voltage signals applied to the grid members. Light energy is sequentially introduced into each of the waveguides while simultaneous control signals are applied to all of the grid members to provide line-at-at-time information display upon the phosphor layer.