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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 |
| 8139287 | Amplification of energy beams by passage through an imploding liner Apparatus and methods are disclosed for amplifying an energy beam such as a beam of laser light or a charged particle beam. An exemplary method includes providing a liner having a first end, a second end, a liner axis, and a lumen extending along the liner axis and ... | 03/20/2012 |
| RE42499 | System and method for amplifying an optical pulse and pumping laser therefor An efficient, powerful and reliable system for amplifying optical pulses. Seed-pulses are generated by a seed-pulse source and are transmitted to an optical amplifier for amplification. The power for the amplification is provided by a Q-switched, diode-pumped, intra... | 06/28/2011 |
| 7391968 | Finder optical system for a single-lens reflex camera An eyepiece includes, in order from the object side, a first lens with positive power, a second lens with positive power, and a third lens with negative power. The first lens is a positive meniscus lens with a convex surface facing the object side, and the eyepiece ... | 06/24/2008 |
| 7391563 | Electro-optic mirror cell A reflective element assembly for a variable reflectance vehicular mirror includes a front substrate having a transparent conductive coating disposed on a second surface thereof, and a rear substrate having an electrically conductive metallic reflective coating disp... | 06/24/2008 |
| 7336874 | Display element and display device A display device is constructed with conductive fibers which are coated with a display medium and are woven together with transparent conductive fibers. The conductive fibers coated with a display medium serve as warps and the transparent conductive fibers serve as ... | 02/26/2008 |
| 7330301 | Inexpensive variable rep-rate source for high-energy, ultrafast lasers System for converting relatively long pulses from rep-rate variable ultrafast optical sources to shorter, high-energy pulses suitable for sources in high-energy ultrafast lasers. Fibers with positive group velocity dispersion (GVD) and self phase modulation are adva... | 02/12/2008 |
| 7317179 | Systems and methods to shape laser light as a homogeneous line beam for interaction with a film deposited on a substrate Systems and methods are disclosed for shaping and homogenizing a laser beam for interaction with a film. The shaping and homogenizing system may include a lens array and a lens that is positioned to receive laser light from the lens array and produce a respective el... | 01/08/2008 |
| 7286241 | System and method for high-speed laser detection of ultrasound A system and method for laser light amplification provides amplification of a laser light beam emitted from a laser light source as low-amplification seed laser light signal. The low-amplification seed laser light signal is transmitted to an amplification component.... | 10/23/2007 |
| 7280571 | Scalable zig-zag laser amplifier A solid state laser amplifier architecture in which multiple zig-zag slab laser amplifiers (50) are stacked together, side-pumped using a common pump source (52, 54), and cooled with a common cooling system. The stack of zig-zag slabs (50) produ... | 10/09/2007 |
| 7259904 | Coarse spectrometer with a grating A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors, and may cause the centroid wavelength of the carrier to shift. Temperature adjustments by wavelength lock... | 08/21/2007 |
| 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 |
| 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 |
| 7233433 | Self-reference locking of optical coherence by single-detector electronic-frequency tagging A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of signals, the signals are electronically modulated at unique frequencies. One signal is designated a reference signal while the remaining signals are ... | 06/19/2007 |
| 7227881 | Master oscillator—power amplifier excimer laser system A Master Oscillator (MO)—Power Amplifier (PA) configuration (MOPA) can be used advantageously in an excimer laser system for micro-lithography applications, where semiconductor manufacturers demand powers of 40 W or more in order to support the throughput requirem... | 06/05/2007 |
| 7221499 | Frequency scanned array control system An optical fiber amplifier array and related method, in which high beam quality is achieved by varying the frequency of an input signal applied to all of the fiber amplifiers, to locate a frequency at which the amplifiers produce nearly coherent optical outputs. In ... | 05/22/2007 |
| 7209500 | Stimulated Brillouin scattering mirror system, high power laser and laser peening method and system using same A laser system, such as a master oscillator/power amplifier system, comprises a gain medium and a stimulated Brillouin scattering SBS mirror system. The SBS mirror system includes an in situ filtered SBS medium that comprises a compound having a small negative non-l... | 04/24/2007 |
| 7202993 | Production of tuneable picosecond light pulses in a visible spectral range The invention relates to a device for the production of tuneable light impulses in a visible spectral range, comprising a laser system (LS) which emits femtosecond light impulses in the infrared spectral range, and an optical frequency converter (FC) for converting ... | 04/10/2007 |
| 7190872 | Semiconductor optical amplifier and optical module using the same The present invention provides a polarization dependency-free, gain-saturated high function semiconductor optical amplifier and optical module at industrially low cost. The gist of the present invention is to structurally separate the optical signal propagating wave... | 03/13/2007 |
| 7187492 | Self-referenced locking of optical coherence by single-detector electronic-frequency tagging A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of signals, the signals are electronically modulated at unique frequencies. One signal is designated a reference signal while the remaining signals are ... | 03/06/2007 |
| 7158288 | Long-wavelength-band gain-controlled optical amplifier A long-wavelength band (L-band) optical amplifier capable of maintaining a gain constant, thereby providing a stable optical output even when an optical power or a wavelength of a signal input thereto changes. The optical amplifier includes an amplifier which amplif... | 01/02/2007 |
| 7143769 | Controlling pulse energy of an optical amplifier by controlling pump diode current The present invention includes the method of using optically-pumped optical amplifiers to remove material from a body by optical-ablation through time-compressing the amplified pulse and illuminating a portion of the body with the time-compressed optical pulse. The ... | 12/05/2006 |
| 7136219 | Optical amplifier using delayed phase matching fiber The present invention has an object to provide an optical amplifier capable of realizing a good response characteristic in a wide frequency band, even when a population inversion state is formed by a pumping light supplied to an optical amplification medium and an A... | 11/14/2006 |
| 7130537 | Safety shutdown system for a WDM fiber optic communications network A fiber optic communications network includes multiple transmitters and multiple receivers connected by an optical WDM transmission link, the receivers having output channels for providing signals to terminal devices, each receiver including a demodulator to detect ... | 10/31/2006 |
| 7127145 | Semiconductor optical amplifier, and optical module using the same The present invention provides a polarization dependency-free, gain-saturated high function semiconductor optical amplifier and optical module at industrially low cost. The gist of the present invention is to structurally separate the optical signal propagating wave... | 10/24/2006 |
| 7123634 | Zig-zag laser amplifier with polarization controlled reflectors A solid state zig-zag slab laser amplifier in which depolarization occurring at total internal reflection from opposed lateral faces of the amplifier slab is controlled by selecting a complex evanescent coating that provides a selected phase retardance that results ... | 10/17/2006 |
| 7116687 | High repetition rate passively Q-switched laser for blue laser based on interactions in fiber A laser apparatus is disclosed. The apparatus includes a Neodymium-doped lasing material having first and second surfaces and a passive Q-switch optically coupled to the second surface. The first-surface is substantially transparent to a pump radiation and substanti... | 10/03/2006 |
| 7116688 | Laser system and method for generation of a pulse sequence with controllable parameters and computer program product A laser system for generating at least one pulse and/or pulse sequence(s) of pulses having at least one specified property, such as pulse energy, duration, peak intensity, pulse form and/or timing includes an amplifying cavity. The amplification process is monitored... | 10/03/2006 |
| 7110680 | Method and system for forward pumping Raman amplification in an optical network An optical communication system includes a plurality of nodes coupled by an optical fiber. The optical fiber comprises a gain medium and is operable to transmit optical signals in a plurality of channels. An optical pump is coupled to the optical fiber, and is opera... | 09/19/2006 |
| 7095772 | Extreme chirped/stretched pulsed amplification and laser Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of the amplifying medium. The additional gain factor is related to the ... | 08/22/2006 |
| 7087447 | Method for fabricating zig-zag slabs for solid state lasers A method for batch manufacturing of slabs for zig-zag lasers including steps of bonding two non-active media to either side of an active medium to form a sandwich, dicing the sandwich to provide slices, rendering two surfaces of each slice into total-internal-reflec... | 08/08/2006 |
| 7075712 | Combining and distributing amplifiers for optical network and method A system for distributing optical signals comprises a plurality of optical splitter stages. The optical splitter stages are each operable to passively split each of one or more optical signals provided to the stage into a plurality of optical signals. At least one o... | 07/11/2006 |
| 7068420 | Low cost optical amplifier An optical amplifier includes a substrate having disposed thereon an optical waveguide, the optical waveguide having an active region with Si nanocrystals dispersed in an erbium doped glass matrix. A light source is arranged to irradiate the optical waveguide with p... | 06/27/2006 |
| 7065110 | Scalable wavelength shifted laser source and method A laser array architecture scalable to very high powers by fiber amplifiers, but in which the output wavelength is selectable, and not restricted by the wavelengths usually inherent in the choice of fiber materials. A pump beam at a first frequency is amplified in t... | 06/20/2006 |
| 7061667 | Optical amplifiers An L-band EDFA may have three amplifier stages. In the first stage, a high power 980 nm laser is used to generate C-band ASE noise which is used to pump the erbium doped fiber of the second stage. The second stage fiber is arranged as a plug-in module which connects... | 06/13/2006 |
| 7044044 | Radio frequency triggered directed energy munition A laser weapon cartridge for disabling and/or destroying a target is disclosed. In an embodiment, the laser weapon cartridge may be compatible within a ballistic gun. For example, the laser weapon cartridge may be placed in the breech of a gun and armed by the gun's... | 05/16/2006 |
| 7046711 | High power and high gain saturation diode pumped laser means and diode array pumping device A diode pumped solid state laser for producing a high aspect ratio beam comprises a diode pumping array (1) on a diode array mount (3) and optical means for imaging a pump light beam onto a substantially asymmetrical spot with a smooth intensity profil... | 05/16/2006 |
| 7046430 | Optical transmission systems including signal varying devices and methods Optical systems of the present invention include a plurality of optical processing nodes in optical communication via a plurality of signal varying devices. A first signal varying device includes an optical fiber configured to produce Raman scattering/gain in a sign... | 05/16/2006 |
| 7040270 | Internal combustion engine Internal combustion engine with at least one cylinder, in which the combustion of a homogeneous air/fuel mixture compressed in the cylinder by a piston is initiated by a time-controlled external ignition, the air/fuel ratio of the air/fuel mixture in the combustion ... | 05/09/2006 |
| 7039076 | Fiber amplifier system for producing visible light A light source is disclosed having a pulsed laser, a fiber amplifier optically coupled to the pulsed laser, and a nonlinear frequency converting element optically coupled to the fiber amplifier. The pulsed laser, e.g., a passively Q-switched laser, is configured to ... | 05/02/2006 |
| 7034992 | Brightness enhancement of diode light sources Briefly, the present invention relates to a system for combining the output light beams of a plurality of semiconductor laser diodes, for example, to form a combined light beam with increased brightness. The output light beams from the semiconductor laser diodes are... | 04/25/2006 |
