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| Number | Title | Issue Date |
| 7339322 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps Apparatus and methods are disclosed for measuring cathode fall within a fluorescent lamp that contains an electrode and a gas. A level of cathode fall associated with the electrode may be identified based on an intensity and wavelength of radiation emitted by the ga... | 03/04/2008 |
| 7323877 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps Apparatus and methods are disclosed for measuring cathode fall within a fluorescent lamp that contains an electrode and a gas. A level of cathode fall associated with the electrode may be identified based on an intensity and wavelength of radiation emitted by the ga... | 01/29/2008 |
| 7301286 | Method of detecting an arc in a glow-discharge device and apparatus for controlling a high-frequency arc discharge In a method of detecting arc discharge in a glow-discharge apparatus GD that has a high-frequency power source PS, a cutting pulse is output for time T1 to the high-frequency power source PS to stop a supply of power to the glow-discharge apparatus GD, when dVr/dtâˆ... | 11/27/2007 |
| 7259519 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps Apparatus and methods for measuring cathode fall in fluorescent lamps are disclosed. Together with measurements of cathode temperature, such measurements of cathode fall may inform a determination of cathode heater voltage as a function of discharge current (i.e., a... | 08/21/2007 |
| 7260135 | Light emitting device The present invention provides a light emitting device typified by a laser oscillator using an electroluminescent material that can enhance directivity of emitted laser light and resistance to a physical impact. A light emitting device includes a first electrode hav... | 08/21/2007 |
| 7251263 | Capillary discharge x-ray laser A compact, high repetition rate, extreme ultraviolet/soft x-ray laser and method for generating such radiation are described. Excitation of the gaseous or vaporous lasing medium is achieved by discharging energy stored in a solid-dielectric capacitive device through... | 07/31/2007 |
| 7116055 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps Apparatus and methods are disclosed for measuring cathode fall within a fluorescent lamp that contains an electrode and a gas. A level of cathode fall associated with the electrode may be identified based on an intensity and wavelength of radiation emitted by the ga... | 10/03/2006 |
| 6700913 | Low cost high integrity diode laser array A semiconductor laser diode array including a plurality of laser diode bars, each carried by a submount and forming a subassembly. Each subassembly is separated by a flexible or compliant electrically conductive spacer. All connections within the array ar... | 03/02/2004 |
| 6693944 | Sputtering metal ion laser Internal mirror sputtering metal ion lasers are disclosed which employ laser mirrors and a resonator internal to and integral with the laser plasma tube. Preferred lasers use silver, copper, gold and other metals individually or in combination as opticall... | 02/17/2004 |
| 6650679 | Preionization arrangement for gas laser A preionization device for a gas laser comprises an internal preionization electrode having a dielectric housing around it and an external preionization electrode displaced from the dielectric housing by a small gap. The dielectric housing includes two cy... | 11/18/2003 |
| 6650680 | Gas laser with cooled coaxial electrode tubes A laser has at least two coaxial electrode tubes spaced apart to provide a laser cavity therebetween and a cooling system including cooling coils about the outer surface of the outer electrode and about the inner surface of the inner electrode and in heat... | 11/18/2003 |
| 6618422 | Preionization arrangement for a gas laser A preionization device for a gas laser comprises an internal preionization electrode having a dielectric housing around it and an external preionization electrode displaced from the dielectric housing by a small gap. The dielectric housing includes two cy... | 09/09/2003 |
| 6567451 | Narrow band excimer or molecular fluorine laser having an output coupling interferometer An excimer or molecular fluorine laser includes a discharge chamber filled with a gas mixture, multiple electrodes within the discharge chamber connected to a power supply circuit for energizing the gas mixture, and a resonator including the discharge cha... | 05/20/2003 |
| 6529538 | Gas laser oscillator apparatus An apparatus designed to prevent, by adjusting a flow of laser gas, discharge products from stagnating and being released again into a main discharge space, maintain the purity of the laser gas in the main discharge space, and stabilize the main discharge... | 03/04/2003 |
| 6507596 | Gas laser apparatus The amount of pre-ionization by the pre-ionization electrode provided on the gas outflow side of the main discharge space, out of at least one pair of pre-ionization electrodes, is adjusted so as to attain the desired beam profile. As a result, the pre-io... | 01/14/2003 |
| 6480517 | Shadow device for a gas laser An electrode arrangement for a gas laser is provided. The electrode arrangement includes an elongated high voltage electrode, an elongated ground electrode disposed adjacent to the high voltage electrode, a discharge gap between the two electrodes an insu... | 11/12/2002 |
| 6473445 | Gas laser A gas laser gas has an elongated cavity in which are disposed a first elongated electrode tube having an inner diameter, and a second elongated electrode tube disposed coaxially within the first electrode tube and having an outer diameter smaller than the... | 10/29/2002 |
| 6456643 | Surface preionization for gas lasers An excimer or molecular fluorine laser includes one or more sliding surface discharge preionization units each including an elongated preionization electrode spaced from one or more associated preionization electrodes by an elongated dielectric within the... | 09/24/2002 |
| 6442185 | All-metal, DC excited laser with RF pre-ionization The present invention provides a novel and improved technique for achieving a combined RF-DC gas discharge in the optical cavity of the gas laser. The combination of the fast pre-ionization with the transverse RF discharge and the high power excitation wi... | 08/27/2002 |
| 6259528 | Extending RLG lifetime by maintaining low level oxygen impurity background Plasma is placed in ring laser gyro blocks to create laser beams for the operation of the ring laser gyro. The plasma is doped with a small portion of material that allows the ring laser gyro to operate for a long period of time.... | 07/10/2001 |
| 6222868 | Surface-type optical device, fabrication method therefor and display device A surface-type optical device, such as a surface emitting laser device, includes a first substrate, a plurality of active regions formed and disposed on the first substrate, and a control unit for injecting a current into or applying an inverse voltage to... | 04/24/2001 |
| 5485478 | Ion laser generator In an ion laser generator, an electromagnet must produce a sufficiently strong magnetic field throughout the length of the bore where plasma must be converged, and the magnetic field intensity at the end surface of the cathode must not exceed a certain li... | 01/16/1996 |
| 5426661 | Pulsed laser discharge stabilization Low power discharge preionizers, or species, are provided by a ionizable species generator that preconditions a laser gas to eliminate arcing in lasers, such as pulsed (high repetition rate) lasers. The present invention creates the species in a low power... | 06/20/1995 |
| 5379316 | Laser discharge tube A laser discharge tube for preventing the flow out of an electrode material, deterioration of electrodes, and the like, caused by corona discharge, as well as for increasing power to be supplied to the laser discharge tube by improving the heat-dissipatin... | 01/03/1995 |
| 5351260 | Thoriated-tungsten, split-ring, hollow-cathode electrode for discharge devices An electrode assembly for a gas or metal vapor discharge device is disclosed. A pair of electrode assemblies each comprising thoriated tungsten with an alloy composition of tungsten (W) and from about 2% to about 3% of thorium dioxide ThO2 are located at ... | 09/27/1994 |
| 5329541 | Laser connector conversion adaptor The present invention is directed to an adaptor for the conversion of laser connectors which will render a pre-existing laser system having an inside connector receptive to and connectable to an otherwise non-fitting generic or proprietary outside connect... | 07/12/1994 |
| 5327446 | Method of exciting laser action and delivering laser energy for medical and scientific applications A laser energy excitation and delivery device which includes a coaxial system of tubes having an annular space therebetween. A lasing or pumping gas is provided in the annular space and subjected to radio frequency discharge which results in the generatio... | 07/05/1994 |
| 5187716 | Excimer laser device At least the opposing surface portions of the main electrodes of an excimer laser device are covered with materials which are resistive to chemical etching than nickel. The etching resistive material may be a platinum based alloy containing rhodium, ruthe... | 02/16/1993 |
| 5150375 | Substance vaporizing apparatus A substance vaporizing apparatus which uses a vapor of a substance generated by heating the substance in a gas-filled tube as an exciting medium or an ionizing medium. The apparatus employs an improved container for containing the substance within the gas... | 09/22/1992 |
| 5136606 | Discharge tube for a gas laser device A discharge tube for a high-speed axial-flow type discharge pumping gas laser device is provided, in which a capacitive load medium (9) under metal electrodes (2a, 2b) has convexly curved faces opposed to each other and constitutes a discharge tube. With ... | 08/04/1992 |
| 5128952 | Metal ion laser A hollow cathode type metal ion laser utilizing negative glow discharge for generating a laser beam. A hollow cathode is inserted into a glass tube, and there are provided springs between opposite ends of the hollow cathode and adjacent ends of the glass ... | 07/07/1992 |
| 5113407 | Discharge tube for laser oscillator At least one pair of electrodes (5a, 5b) are provided on the surface of a dielectric discharge tube (1), and radiating fins (2a, 2b) are attached to a part of the electrodes (5a, 5b). A ceramic clamp (3) and a stainless-steel backup plate (4) are engaged ... | 05/12/1992 |
| 5099492 | Laser system A compact RF excited annular laser system has a stable resonator with a high quality output beam. The stable resonator has internal axiconical and annular mirrors to conform with the annular lasing medium, and to convert the annular beam into a compact cy... | 03/24/1992 |
| 5062116 | Halogen-compatible high-frequency discharge apparatus Discharge tubes formed of metal fluoride gases are used in apparatus for emitting high frequency laser and fluorescent light. The discharge tubes are resistant to corrosion from halogen-containing gas mixtures subjected to high frequency excitation in the... | 10/29/1991 |
| 5049777 | High-power radiator A high-power radiator for UV light comprises a quartz tube or glass tube (1) with electrodes (3, 4), which are arranged in pairs and are separated from one another in the circumferential direction. Together with the electrodes, the tube is partially embed... | 09/17/1991 |
| 5042047 | Laser apparatus A laser beam generated between a total reflector and an output coupler is turned back by plural reflectors which are mounted in a discharge region along two main electrodes at 45°, and the discharge region is divided into plural divided discharge regions... | 08/20/1991 |
| 5013959 | High-power radiator A high-power radiator, especially for ultraviolet light, wherein in order to increase the efficiency in the case of UV high-power cylindrical radiators, the inner dielectrics (3) are very small in comparison with the outer dielectric tube. A privileged di... | 05/07/1991 |
| 4980894 | Ignitor for the preionization of a gas-discharge laser An ignitor for a preionizing means of an excimer laser has an electrically conductive core which projects into the gas space of the laser and which is surrounded by a jacket of a fluoroplastic. The jacket is brought into sealing engagement with the wall o... | 12/25/1990 |
| 4979179 | Divided hollow cathode laser An improved electrode design for reducing discharge instability, especially in white light lasers. The apparatus consists of at least one cathode electrode (12) arranged between anode electrodes (14), said cathode being divided into two equally long tube ... | 12/18/1990 |
| 4951296 | Laser anode construction The anode end of a gas laser is constructed so as to include an electrically and thermally insulating barrier between the Brewster window and the anode end of the tube bore thereby permitting cooler operating temperatures at the Brewster window and confin... | 08/21/1990 |
