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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7961762 | White light-emitting lamp and illuminating device using the same A white light-emitting lamp (1) includes a light-emitting portion (9) which is excited by light emitted from a semiconductor light-emitting element (2) to emit white light. The light-emitting portion (9) contains a blue phosphor, a yellow... | 06/14/2011 |
| 7792160 | Coherent light source and recording and reproduction device using the same For performing hologram recording or reproduction, an oscillation wavelength half value width Δλ of a coherent light source satisfies a relationship of Δλ | 09/07/2010 |
| 7672342 | Method and radiation source for generating pulsed coherent radiation A method of generating pulsed coherent radiation, comprises the step of generating high harmonic pulses by an interaction of laser light pulses with a non-linear medium contained in a resonant cavity, wherein the non-linear medium is arranged in an environment of re... | 03/02/2010 |
| 7664147 | Phase matching of high order harmonic generation using dynamic phase modulation caused by a non-collinear modulation pulse Phase matching high harmonic generation (HHG) uses a single, long duration non-collinear modulating pulse intersecting the driving pulse. A femtosecond driving pulse is focused into an HHG medium (such as a noble gas) to cause high-harmonic generation (HHG), for exa... | 02/16/2010 |
| 7508847 | Ultra-short laser source with rare earth ions and stable pulse train and device for lengthening a laser cavity A rare earth ion ultrashort laser source includes a resonant cavity having a first output face partially reflecting and a second reflecting face. The source also includes a first active material, which receives a pump luminous flux transmitted via a first solid lase... | 03/24/2009 |
| 7425706 | Gamma-ray laser; induced gamma emission system and method A method for producing stimulated emission of gamma radiation comprising: 1] providing at least first and second gamma-radiation sources, both sources being in recoil-free first-excited nuclear levels and the second source being in... | 09/16/2008 |
| 7424185 | Stretching and compression of laser pulses by means of high efficiency volume diffractive gratings with variable periods in photo-thermo-refractive glass High efficiency reflective volume Bragg gratings with chirped gratings recorded in photo-thermo-refractive glass having an absolute diffraction efficiency exceeding 95% in transmitting and reflecting modes are used to stretch and/or compress ultrashort laser pulses ... | 09/09/2008 |
| 7394083 | Systems and methods for EUV light source metrology Systems and methods for EUV Light Source metrology are disclosed. In a first aspect, a system for measuring an EUV light source power output may include a photoelectron source material disposed along an EUV light pathway to expose the material and generate a quantit... | 07/01/2008 |
| 7372056 | LPP EUV plasma source material target delivery system An EUV light generation system and method is disclosed that may comprise a droplet generator producing plasma source material target droplets traveling toward the vicinity of a plasma source material target irradiation site; a drive laser; a drive laser focusing opt... | 05/13/2008 |
| 7369586 | Laser module In a laser module comprising a hermetically sealed container having inside a semiconductor laser device whose emission wavelength is 350˜450 nm, generation of organic volatile gas is suppressed in the container and life of the module is prolonged. In a laser module... | 05/06/2008 |
| 7369581 | Laser module and method of manufacture thereof A laser module includes a semiconductor laser that emits laser light within a wavelength range of 350 to 450 nm, and hermetically sealing members, in which the semiconductor is sealed. The amount of organic adhesive utilized within the volume of the sealed sealing m... | 05/06/2008 |
| 7357513 | System and method for driving semiconductor laser sources for displays A light engine includes a multi-color laser source having a set of semiconductor lasers. A controller synchronizes the operation of the laser source to operate in a color sequential order with a spatial modulator. ... | 04/15/2008 |
| 7317192 | High energy polyenergetic ion selection systems, ion beam therapy systems, and ion beam treatment centers Devices and methods are provided for generating laser-accelerated high energy polyenergetic positive ion beams that are spatially separated and modulated based on energy level. The spatially separated and modulated high energy polyenergetic positive ion beams are us... | 01/08/2008 |
| 7310408 | System and method for X-ray generation by inverse compton scattering A system for generating a tunable X-ray pulse comprises a first electron beam source configured to direct a first electron pulse of predetermined energy and pulse length towards a first interaction zone, a laser beam source configured to direct a first photon pulse ... | 12/18/2007 |
| 7308007 | Increased laser output energy and average power at wavelengths below 35 nm Saturated tabletop lasers having increased output energy and operating at 5 Hz repetition rate, were demonstrated at wavelengths about 18.9 nm for molybdenum targets, 16.4 nm for ruthenium targets, 14.7 nm for palladium targets, 13.9 nm for silver targets, and 13.2 ... | 12/11/2007 |
| 7301497 | Stereo display for position sensing systems A method for display of radar data includes performing a first radar scan to obtain, for at least one object (24), a first range reading, a first azimuth reading, and a first altitude reading. A second radar scan is then performed to obtain, for the at least ... | 11/27/2007 |
| 7301975 | Laser module In a laser module comprising a hermetically sealed container having inside a semiconductor laser device whose emission wavelength is 350˜450 nm, generation of organic volatile gas is suppressed in the container and life of the module is prolonged. In a laser module... | 11/27/2007 |
| 7295653 | Apparatus, system, and method for optical pulse gain enhancement for high-finesse external cavity A passive optical resonator stores optical pulses within a cavity to increase the optical power level of input pulses via resonant reflections without the use of an internal optical gain medium. In one embodiment for a Compton backscattering system, the optical reso... | 11/13/2007 |
| 7286587 | Holmium doped 2.1 micron crystal laser A Ho:YAG crystal laser is disclosed which is doped with less than 2% holmium to reduce the lasing threshold and up-conversion, thereby increasing the operating efficiency of the laser. The laser does not need sensitizer ions so energy mismatches introduced by the se... | 10/23/2007 |
| 7277220 | Ultraviolet laser apparatus and exposure apparatus using same A laser apparatus including a laser generating portion that generates pulse light having a single wavelength within a range from an infrared band to a visible band. An optical amplifier is optically connected to the laser generating portion, and includes a plurality... | 10/02/2007 |
| 7277460 | Generation of optical filaments by use of localized optical inhomogeneities Optical filaments are formed controllably in a gaseous medium such as air. A phase plate introducing a phase discontinuity or other localized optical inhomogeneity is introduced into the path of the pulsed high-power laser beam that forms the optical filaments in th... | 10/02/2007 |
| 7277526 | Apparatus, system, and method for high flux, compact compton x-ray source A Compton backscattering x-ray source includes an electron storage ring for storing electron bunches. A timing system refreshes an orbiting electron bunch according to a schedule selected to improve at least one attribute of x-ray emission. In one implementation, th... | 10/02/2007 |
| 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 |
| 7248618 | Systems and methods for second harmonic generation using three-dimensional Bragg grating elements Apparatus and methods for altering one or more spectral, spatial, or temporal characteristics of a light-emitting device are disclosed. Generally, such apparatus may include a volume Bragg grating (VBG) element that receives input light generated by a light-emitting... | 07/24/2007 |
| 7245419 | Wavelength-stabilized pump diodes for pumping gain media in an ultrashort pulsed laser system In an optical amplifier, passively wavelength-stabilized pump diodes generate pumping light to excite a gain medium (e.g., rare-earth-ion doped optical fiber or solid-state optical amplifier) near an absorption peak of the gain medium. The gain medium amplifies a pu... | 07/17/2007 |
| 7242748 | X-ray transmissive optical mirror apparatus A mirror is reflective to light and transmissive to x-rays. The mirror has a continuous mirror surface and an x-ray aperture within a body portion of the mirror proximate the continuous mirror surface that is transmissive to x-rays. ... | 07/10/2007 |
| 7233607 | Pulsed light sources A source of pulses of coherent radiation at a wavelength of approximately 1 μm, comprises a pump source for producing pump light; a laser cavity comprising an Yb3+-doped gain medium arranged to receive the pump light, the laser cavity being modelocked to... | 06/19/2007 |
| 7230258 | Plasma-based debris mitigation for extreme ultraviolet (EUV) light source A light source chamber in an Extreme Ultraviolet (EUV) lithography system may include a secondary plasma to ionize debris particles created by the light source and a foil trap to trap the ionize particles to avoid contamination of the collector optics in the chamber... | 06/12/2007 |
| 7230967 | Waveguide laser A laser waveguide, where the laser waveguide can be formed by electrodes and at least one sidewall in a manner allowing a more compact structure than previously provided. Protrusions in the electrodes allow easier laser starts, and sectional sidewall(s) allow easier... | 06/12/2007 |
| 7221731 | X-ray microscopic inspection apparatus To provide an X-ray microscopic inspection apparatus capable of performing non-destructive inspection with high resolving power within a very short period, and having advantageous functions such as a high precision electron probe control function, a CT function, an ... | 05/22/2007 |
| 7218703 | X-ray microscopic inspection apparatus To provide an X-ray microscopic inspection apparatus capable of performing non-destructive inspection with high resolving power equal to or less than 0.1 μm in a very short period, and largely contributing to the nano-technology field. In the X-ray microscop... | 05/15/2007 |
| 7215853 | Optical module formed on common substrate for branching an optical signal A collimator 111 for an input light, a collimator 112 for an output light, a collimator 113 for a branched light, a collimator 114 for an inserted light and a wavelength selecting filter 115 are provided on a common substrate 13... | 05/08/2007 |
| 7196839 | Super-continuum UV source An ultraviolet super-continuum source with a fiber-optic may be provided with direct stimulation by a laser having a relatively narrow bandwidth, for example, less than the typical Raman shift in the material of the optical fiber to provide a super-continuum source ... | 03/27/2007 |
| 7196342 | Systems and methods for reducing the influence of plasma-generated debris on the internal components of an EUV light source Systems and methods are disclosed for reducing the influence of plasma generated debris on internal components of an EUV light source. In one aspect, an EUV meteorology monitor is provided which may have a heater to heat an internal multi-layer filtering mirror to a... | 03/27/2007 |
| 7197060 | Waveguide laser A laser waveguide, where the laser waveguide can be formed by electrodes and at least one sidewall in a manner allowing a more compact structure than previously provided. Protrusions in the electrodes allow easier laser starts, and sectional sidewall(s) allow easier... | 03/27/2007 |
| 7170030 | Method and apparatus for repair of reflective photomasks A method of selectively ablating an undesired material from a substrate includes providing a substrate with two regions; providing laser pulses; tuning a wavelength of the laser pulses to match a desired wavelength characteristic of a material and directing the tune... | 01/30/2007 |
| 7154666 | Narrow-band spectral filter and the use thereof The invention relates to a narrow-band spectral filter. The aim of the invention is to reduce the radiation exposure of optical elements used in highly ultraviolet light by using an optical filter that is simple in construction and that preselects a wavelength band ... | 12/26/2006 |
| 7154919 | Optical fiber laser and laser light emitting method An optical fiber laser includes a resonator comprising an erbium-doped glass fiber serving as a gain medium and a pumping light source that launches pumping light into the erbium-doped glass fiber. The pumping light source emits pumping light of a wavelength of 980 ... | 12/26/2006 |
| 7133426 | Method and apparatus for producing a pulsed laser beam A mode locked pulsed laser is constructed to shorten pulse duration by a solid state saturable absorber, such as a glass doped with a quantum-dot material such as PbS. The saturable absorber, used as a passive mode locker, is preferably used in combination with an a... | 11/07/2006 |
| 7126745 | Method of irradiating ultraviolet light onto an object A method of irradiating ultraviolet light onto an object. The method includes generating pulse light having a single wavelength within a range from 1.51 μm to 1.59 μm from a laser generating portion, amplifying the pulse light plural times with an optical amplifie... | 10/24/2006 |
