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7574026 |
Method for the 3d modeling of a tubular structure
The invention provides a method for 3D modeling of a three-dimensional tubular structure of an examination object from 2D projection images (D) of the structure taken from different projection...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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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,...
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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...
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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...
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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...
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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.
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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...
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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...
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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...
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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...
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5319664 |
Ion laser tubes
The invention provides an ion laser tube in which a TiC or B 4 C coating layer having excellent durability to plasma bombardment and an alumina coating layer for preventing oxidation of TiC and B...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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H000882 |
Multiple-section pulsed gas laser
Several gas-tight enclosures share a common optical cavity. The enclosures may be filled with neat gases or mixtures of gasses. The same gas or mixture, at the same or a different pressure, may...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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4912719 |
Ion laser tube
The discharge section of an ion laser tube is made up of a plurality of axially spaced pillar members, each accommodating and holding a respective capillary tube within a central hole, the...
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4856016 |
Gas laser tube having a slotted anode
A gas laser tube comprises an elongated insulative envelope for containing a laser active medium therein, and an anode electrode and a cathode electrode provided in the elongated envelope for an...
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4847849 |
Laser including at least one seal
A laser includes a discharge tube formed from one piece and penetrating, with play, into an anode chamber on one side and into a cathode chamber on the other side, the anode and cathode chambers...
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4841539 |
Gas laser discharge tube with ceramic wafers and cooling wafers in a stack
A relatively high power gas laser includes a laser discharge tube formed of stacked alternating cooling wafers and ceramic wafers, the cooling wafers being provided with recesses set back from the...
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4821279 |
Gas laser
In a gas ion laser of the type having a serial array of coaxially aligned axially spaced floating electrodes contained within an evacuable dielectric envelope for exciting a d.c. plasma laser...
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4815093 |
Device for a modular power laser
A longitudinal-flow modular CO 2 laser having at least one CW output power has metallic end-flange devices at the two ends of the laser and a metallic intermediate-flange device at the transition...
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4805180 |
Discharge tube apparatus
Discharge tube apparatus includes an outer containing vessel and a structure comprising for example five metal cylinders located co-axially within it. Each of the metal cylinders includes...
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4774713 |
Segmented laser tube structure
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 ferrule with a central hole. The series of holes formed...
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4764932 |
Ion laser having direct liquid cooling of segmented discharge tube
A gas laser having a segmented ceramic laser tube in which at least one thermally conducting, electrically insulating sleeve fits over the peripheral edges of segment interfaces. Coolant, such as...
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4752936 |
Gas laser, particularly ion laser
In a gas laser, in particular an ion laser with a discharge tube arranged between a cathode and an anode, the tube is supported with the aid of several disks in a gas-filled support tube. The...
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4750186 |
Sealed gas laser
The gas laser of this invention includes a discharge tube formed from a plurality of metallic bodies arranged in end to end alignment. The tube is terminated by a cathode chamber at one end and an...
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4734915 |
Conduction cooled laser bore structures formed from graphite and other materials
The subject invention is related to a new and improved bore assembly for use with a gaseous ion laser. Each bore assembly is mountable to a heat conducting member located within the tube. The heat...
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4719638 |
Discharge tube for a gas laser
A discharge tube for a gas laser including an elongated cylindrical tube, a plurality of heat-conduction members spaced apart along the cylindrical tube and about the tube axis and having gas-flow...
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4698818 |
Air-cooled discharge tube for an ion laser
In a discharge tube for ion lasers, cooling disks and insulator tubes are provided so that laser power is increased and relatively inexpensive ceramic can be used for the insulator tubes. Cooling...
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