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| Number | Title | Issue Date |
| 8005126 | Gas-discharge laser The proposed gas discharge laser comprises extended solid main discharge electrodes, at each of which at least one ultraviolet pre-ionizer is placed, a gas flow area being formed by means of dielectric gas flow guides and the work surfaces of main electrodes and the... | 08/23/2011 |
| 7232985 | Controlled fusion in a field reversed configuration and direct energy conversion A system and apparatus for controlled fusion in a field reversed configuration (FRC) magnetic topology and conversion of fusion product energies directly to electric power. Preferably, plasma ions are magnetically confined in the FRC while plasma electrons are elect... | 06/19/2007 |
| 7220256 | Laser system and method for treatment of biological tissues A system for and method of performing laser assisted surgery is disclosed. Laser radiation is preferably delivered to a target area of tissue using a Er:YAG laser source. The laser radiation is delivered to the target area in bursts of laser radiation comprising set... | 05/22/2007 |
| 7099365 | Oscillation method and device of fluorine molecular laser An oscillation method and a device of fluorine molecular laser with narrow spectral line width are provided. For this purpose, the device includes main electrodes (14, 15) for performing main discharge (50) in substantially a same direction as an optic... | 08/29/2006 |
| 7002148 | Controlled fusion in a field reversed configuration and direct energy conversion A system and apparatus for controlled fusion in a field reversed configuration (FRC) magnetic topology and conversion of fusion product energies directly to electric power. Preferably, plasma ions are magnetically confined in the FRC while plasma electrons are elect... | 02/21/2006 |
| 6804284 | Optical element holding and extraction device An optical element holding and extraction device is provided. The device includes an optical element, an optical element holder having a tubular gripping portion and a tubular extraction portion connected at one end to the tubular gripping portion, and a retainer th... | 10/12/2004 |
| 6738400 | Large diameter lasing tube cooling arrangement A cooling structure (16) for use inside a ceramic cylindrical tube (11) of a metal vapor laser (10) to cool the plasma in the tube (11), the cooling structure (16) comprising a plurality of circular metal members (17, 31) an... | 05/18/2004 |
| 6646503 | Circuit configuration for detecting a functional disturbance A circuit configuration for detecting a functional disturbance has a first and a second differential amplifier. The outputs of the differential amplifiers are connected to the inputs of a gate. One input of the differential amplifiers is in each case conn... | 11/11/2003 |
| 6567431 | Multi-wavelengths infrared laser A long wavelength infrared laser system is disclosed where radiation from laser sources such as frequency-doubled Nd:YAG or a Cr:LiSAF is used to resonantly pump a gain medium consisting of a holmium-doped fluoride crystal having a high active ion concent... | 05/20/2003 |
| 6542533 | Process for obtaining ultra-low reflectivity facets for electro-absorption modulated lasers An electro-absorption modulated laser is provided having three sections, a laser section, an isolation section, and a modulation section. The laser section produces light along a straight waveguide path. The modulation section also has a straight waveguid... | 04/01/2003 |
| 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 |
| 6324202 | Power efficient gas ion laser system, associated laser tube, and method A power efficient continuous wave gas ion laser system, associated laser tube and method are described. The system uses a fixed electrical input power and a power factor corrected power supply producing an output voltage and an output current from the fix... | 11/27/2001 |
| 6323694 | Differential comparator with a programmable voltage offset for use in an automatic tester A test circuit operable to examine both differential outputs and single outputs of a device under test (DUT), the circuit comprises a first circuit having as inputs a first output of the DUT and a first set of independent reference voltages, and an output... | 11/27/2001 |
| 6249535 | Gas laser oscillator A gas laser oscillator having at least three discharge tubes disposed along the optical axis, and a spacer having an opening centered on the optical axis. The spacer is disposed between a partially reflective mirror and the closest discharge tube. Further... | 06/19/2001 |
| 6093347 | Rare earth X-ray scintillator compositions Decay time in scintillator compositions comprising yttrium or lutetium and gadolinium oxides and europium oxide is decreased by incorporating therein at least one of the oxides of ytterbium, samarium, praseodymium, neodymium, dysprosium, holmium, thulium,... | 07/25/2000 |
| 5882547 | X-ray scintillators and devices incorporating them Decay time in scintillator compositions comprising yttrium or lutetium and gadolinium oxides and europium oxide is decreased by incorporating therein at least one of the oxides of ytterbium, samarium, praseodymium, neodymium, dysprosium, holmium, thulium,... | 03/16/1999 |
| 5674636 | Article comprising a microcavity light source Optical microcavities are potentially useful as light emitters for, e.g., flat panel displays. Such microcavities comprise a layer structure, including two spaced apart reflectors that define the cavity, with a layer or layers of organic (electroluminesce... | 10/07/1997 |
| 5497392 | Segmented lasing tube for high temperature laser assembly A high temperature laser assembly capable of withstanding operating temperatures in excess of 1500° C. is described comprising a segmented cylindrical ceramic lasing tube having a plurality of cylindrical ceramic lasing tube segments of the same inner an... | 03/05/1996 |
| 5467362 | Pulsed gas discharge Xray laser A high current, pulsed, high repetition rate, electric discharge, extreme ultraviolet and Xray laser. The low inductance discharge bore is constructed from a plurality of discs (18). The bore segments are separated from one another by spacers constructed ... | 11/14/1995 |
| 5406576 | High power ion laser tube having discharge portion of amorphous carbon A discharge portion of an ion laser tube is formed of either amorphous carbon or crystalline graphite member having an amorphous carbon layer on its surface.... | 04/11/1995 |
| 5359621 | High efficiency gas laser with axial magnetic field and tunable microwave resonant cavity A gas discharge laser includes a cylindrical symmetric discharge tube, having a prescribed gas therein at a low pressure, centered within a microwave-resonant cavity immersed in an axial magnetic field. Appropriate mirrors, optically aligned with a longit... | 10/25/1994 |
| 5349594 | Insulative laser shell coupler A segmented coaxial laser shell assembly having at least two water jacket sections, two pairs of interconnection half rings, a dialectric break ring, and a pair of threaded ring sections. Each water jacket section with an inner tubular section that define... | 09/20/1994 |
| 5341392 | Longitudinal discharge laser electrodes The improved longitudinal discharge laser electrode with IR baffle includes an electrode made up of washers spaced along the laser axis in order to form inter-washer spaces for hollow cathode discharge to take place and for IR radiation to be trapped. Add... | 08/23/1994 |
| 5325389 | Ion-laser including a silicon carbide discharge tube having a small arithmetic roughness The present invention provides a novel ion-laser tube possessive of a high output characteristic. The ion-laser tube includes an improved slender discharge tube made of silicon carbide possessive of a high resistivity to sputtering caused by high energy i... | 06/28/1994 |
| 5319662 | Longitudinal discharge laser baffles The IR baffles placed between the window and the electrode of a longitudinal discharge laser improve laser performance by intercepting off-axis IR radiation from the laser and in doing so reduce window heating and subsequent optical distortion of the lase... | 06/07/1994 |
| 5319664 | Ion laser tubes The invention provides an ion laser tube in which a TiC or B4 C coating layer having excellent durability to plasma bombardment and an alumina coating layer for preventing oxidation of TiC and B4 C are provided on an inner face of a ... | 06/07/1994 |
| 5291508 | Gas laser tube A structure for holding tubular cathode in a gas laser tube. The cathode is provided at one end with a slender projection inserted into a hollow member attached to one sealing flush member and caulked at a groove formed in the hollow member to hold the ca... | 03/01/1994 |
| 5177762 | Saturable reactor A saturable reactor comprising a magnetic core (1) having an annular or an elongated race-track configuration, an electrical insulator (6) disposed around the magnetic core and a conductor winding (3) wound around the insulator (6). A coolant duct (7) is ... | 01/05/1993 |
| 5177759 | Method and apparatus of fabricating a reflector An apparatus and method of fabricating an tubular reflector for use in a laser. The tubular reflector is formed by first grinding smooth the inside surface of a round metal tube. The polished tube is inserted into an elliptical mold. The mold is then pres... | 01/05/1993 |
| 5177761 | Gas discharge tube having refractory ceramic coated bore disc for ion laser A heat conducting structure in a discharge tube of an ion laser, that has high resistance to erosion due to sputtering comprises a discharge limiting member having an inner aperture, and a thin film of refractory ceramic coating areas near the inner apert... | 01/05/1993 |
| 5175738 | Insulator for laser housing The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, ea... | 12/29/1992 |
| 5070512 | Interference fit laser disk A disk, or heat web, is generally circularly shaped, and has a circumferential lip normal to the plane of the disk. A split ring, fabricated from a material having a low co-efficient of thermal expansion fits within the circumferential lip. A generally ci... | 12/03/1991 |
| 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 |
| 4974228 | Magnetic field profile for improved ion laser performance An ion laser is constructed with means for generating a magnetic confinement field operating in the cathode transition region of the laser. The magnetic confinement field is preferably generated by first and second magnetic windings, each axially aligned ... | 11/27/1990 |
| 4955033 | Metal vapor laser apparatus Metal vapor laser apparatus includes an envelope within which is contained electrodes and a plurality of cylindrical copper segments arranged between them. During operation of the laser, bromine and helium buffer gas are arranged to flow through the envel... | 09/04/1990 |
| 4953172 | Gas Laser A gas laser with a discharge bore defined by a single-bore extruded ceramic discharge tube is disclosed. An outer tube is located over the discharge tube so as to define an annular space therebetween. Caps are located over both ends of the tubes and each ... | 08/28/1990 |
| 4949354 | Laser apparatus having a discharge triggering device inside a laser tube Laser apparatus includes a gas filled tube and is arranged to act as a switch to trigger, within the tube itself, a discharge. The power dissipated in the discharge is applied to material which forms, or is to form, a laser amplifying medium, to provide p... | 08/14/1990 |
| 4945545 | Cold electrode metal vapor laser A metal vapor laser intended to be excited by an electrical discharge pulsed through a metal vapor, consisting of a tubular chamber terminated at each end by a terminating flange, the terminating flange (1) having formed integrally with it a cold cathode ... | 07/31/1990 |
| 4937834 | High-frequency discharge pumping laser device A high-frequency discharge pumping laser device is provided, applying a high-frequency voltage to a laser tube to produce laser oscillation. The high-frequency discharge pumping laser device comprises a high-frequency power supply for generating the high-... | 06/26/1990 |
| 4930136 | Segmented air cooled laser tube A plurality of thin wall ceramic-metal segments are brazed together to form a gas laser tube assembly. Within each segment there is mounted a refractory metal ferrule with a central hole. The series of holes formed in the ferrules define the discharge bor... | 05/29/1990 |
