Abstract:
A gas panel arrangement for storing, displaying, and selectively shifting information from one place therein to another includes an envelope filled with an illuminable gas, a plurality of vertical conductors disposed in parallel on one side of the envelope, a plurality of horizontal conductors disposed in parallel on the opposite side of the envelope with the regions of illuminable gas in the vicinity of the coordinate intersections of the vertical and horizontal conductors defining gas cells, and a writing arrangement which inserts binary information in a given portion of the envelope by igniting or not igniting the illuminable gas to represent binary ones and zeros. In order to accomplish shifting a sequence of signals is repetitively supplied to sets of the vertical conductors to shift binary information horizontally from one gas cell to another, and a sequence of signals is repetitively supplied to sets of the horizontal conductors to shift binary information vertically from one gas cell to another.
Abstract:
An automatic ignition circuit for a gas laser preferably one having a grounded DC discharge, wherein a voltage multiplier circuit is operatively connected at one end to the secondary winding of a power transformer, for the generation of the high ignition voltage, a relatively high resistance connected to the high voltage end of such circuit operative to connect such end to an electrode of the gas laser defining the discharge section, a relatively low resistance and a diode in series therewith operatively connected to an intermediate point of said multiplier, operative to connect such electrode to said intermediate point, such point being located to provide, during laser operation, a voltage corresponding approximately to the normal operating voltage whereby the high voltage end of said multiplier is operatively shunted to block said high voltage.
Abstract:
A PLASMA DISPLAY APPARATUS IN WHICH A COLOR DISPLAY IS ACHIEVED BY SANDWICHING DIFFERENT GASES BETWEEN X AND Y MATRIX CONDUCTORS. THE GASES ARE CHOSEN SUCH THAT EACH GAS GIVES OFF A DIFFERENT COLOR WHEN IONIZED.
Abstract:
The invention relates to an induction switch comprising a discharge container filled with gas and a coaxially interleaved electrode device, and to a corresponding method for commutating high voltages. The inductive production of a dense plasma and the subsequent flooding of an electrode gap with the plasma ions produced enables the commutation of high currents in the kiloamp range when there are blocking voltages of over 500 kV. Such an induction switch only requires a single discharge gap, can be used over a very wide voltage range, and avoids the problem of electrode erosion as a result of the electrode-free energy coupling.
Abstract:
A starting circuit arrangement in which a gas discharge lamp is assigned a supply circuit having at least one inductor arranged in series with the gas discharge lamp, wherein the starting circuit arrangement comprises a starting transformer connected on the primary side to a starting triggering circuit and connected on the secondary side to the lamp for the transmission of a starting pulse, an input energy source for the starting triggering circuit, a first switch means in the starting triggering circuit, an electronic control device which drives the first switch means. The starting circuit arrangement has, on the supply side, an input terminal connected in the supply circuit of the lamp between the inductor and the lamp, and a means provided for reproducing the phase profile of an AC supply variable of the lamp after starting of the lamp.
Abstract:
Methods and apparatus for providing a Fluorescent Lighting System are disclosed. In one embodiment, the present invention may be used as a fluorescent lamp ballast which is controlled using a non-resonant circuit that allows the ballast to lower to fifty percent the light output of the lamp while providing a corresponding fifty percent reduction in energy used.
Abstract:
A circuit arrangement for operating a high pressure discharge lamp includes a bridge circuit with at least two switches, a control device controlling the switches. The bridge circuit is a half-bridge circuit having exactly two switches. The control device switches on and off in an alternating manner, the first switch and the second switch of the bridge circuit having a first frequency. When the first switch is switched off for controlling the other switch with a rectangular signal of a second frequency which is greater than the first frequency and a predeterminable connection duration. The circuit also includes a tension measuring device measuring an actual value of tension over the high pressure discharge lamp. A reference device provides at least one upper threshold value for the voltage via the high pressure discharge lamp. A comparison device compares the actual voltage over the high pressure discharge lamp with the threshold value.
Abstract:
Based on designs concerning boron nitride thin-films each including boron nitride crystals in acute-ended shapes excellent in field electron emission properties, and designs of emitters adopting such thin-films, it is aimed at appropriately controlling a distribution state of such crystals to thereby provide an emitter having an excellent efficiency and thus requiring only a lower threshold electric field for electron emission.In a design of a boron nitride thin-film emitter comprising crystals that are each represented by a general formula BN, that each include sp3 bonded boron nitride, sp2 bonded boron nitride, or a mixture thereof, and that each exhibit an acute-ended shape excellent in field electron emission property; there is controlled an angle of a substrate relative to a reaction gas flow upon deposition of the emitter from a vapor phase, thereby controlling a distribution state of the crystals over a surface of the thin-film.
Abstract:
An illuminated control for a gas range or the like provides arcuate reflective chambers capped by diffusers to create a substantially continuous glowing circular sector indicating the status of a possibly low visibility gas flames. Line power may be used for direct drive of light emitting diodes illuminating the reflective chambers through the use of discrete series-connected voltage dropping resistors distributed to prevent heat concentration.