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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 |
| 7978739 | Surface emitting laser element, surface emitting laser array, optical scanning device, and image forming apparatus In a surface emitting laser element, on an inclined substrate, a resonator structural body including an active layer, and a lower semiconductor DBR and an upper semiconductor DBR sandwiching the resonator structural body are stacked. A shape of a current passing-thr... | 07/12/2011 |
| 7706419 | Optical systems for microarray scanning The invention provides a novel optical system for use in a microarray scanner, comprising an aperture-containing reflecting mirror comprising an aperture and a reflecting surface. The aperture of the aperture-containing reflecting mirror allows an excitation light t... | 04/27/2010 |
| 7672344 | Multi-laser system A multi-laser system including a first laser oscillator for emitting a first laser beam, a second laser oscillator for emitting a second laser beam, a first scanner pair for receiving the first laser beam emitted by the first laser oscillator and deflecting the inci... | 03/02/2010 |
| 7512161 | Device, method and system for generating an infrared image The infrared image generation device, method and system generate realistic infrared images to accurately test infrared sensors. The device and system include a laser light source, at least one scanner, a processor and a target plate. The scanner(s) receive and redir... | 03/31/2009 |
| 7394839 | Method and apparatus for controlling light power A method and apparatus controlling a light power, the apparatus including a light power controller, which controls a quantity of light and disposed inside the main controller disposed outside the laser scanning unit, and a light generator, which generates light and ... | 07/01/2008 |
| 7377656 | Projector A projector of rear-projection type including a light source that outputs a laser beam and a scanner that scans a screen with the laser beam. When a laser beam with energy exceeds an accessible emission limit due to failure of the light source or the scanner, at lea... | 05/27/2008 |
| 7369584 | Laser projection display A method and apparatus are provided for controlling the operation of a Laser Projection Display (LPD). Generally, the LPD is comprised of a laser, an optical system and a controller. The laser is adapted to emit a beam of laser light. The optical system is adapted t... | 05/06/2008 |
| 7352783 | Tunable fiber laser light source A loop is formed with an optical fiber by providing a gain medium having a gain with respect to an oscillation wavelength. Light retrieved by the optical circulator 13 from the optical fiber loop is enlarged and projected to a mirror 23. A diffraction ... | 04/01/2008 |
| 7336686 | Laser display apparatus Provided is a laser display apparatus in which speckle can be suppressed. The laser display apparatus includes: a laser comprising a first mirror and a second mirror that are separated by a cavity distance and form a cavity; and a spatial modulator modulating light ... | 02/26/2008 |
| 7324719 | Method tuning optical components integrated in a monolithic photonic integrated circuit (PIC) A method of tuning optical components integrated on a monolithic semiconductor chip having a plurality of first optical components integrated on the chip with each fabricated to approximate an emission wavelength along a given wavelength grid and together forming a ... | 01/29/2008 |
| 7298770 | Laser spectral engineering for lithographic process An integrated circuit lithography technique called spectral engineering by Applicants, for bandwidth control of an electric discharge laser. In a preferred process, a computer model is used to model lithographic parameters to determine a desired laser spectrum neede... | 11/20/2007 |
| 7294863 | Micro-lens built-in vertical cavity surface emitting laser A micro-lens built-in vertical cavity surface emitting laser (VCSEL) includes a substrate and a lower reflector formed on the substrate. An active layer is formed on the lower reflector, generating light by a recombination of electrons and holes. An upper reflector ... | 11/13/2007 |
| 7243850 | Data reader for multi-mode operation A data reader and method for data reading, such as a barcode scanner, wherein the scan pattern generating optics and other features are optimized for different modes of operation. In a preferred embodiment, different patterns are projected from different apertures i... | 07/17/2007 |
| 7230769 | Humidity tolerant scan lens A lens has a lens body (1), reinforcing extensions (3a, 3b) and a clear aperture (9) surrounded on top and bottom by lens body. The lens is suitable for spot scanning. The lens is made of a water absorbing material, such as ... | 06/12/2007 |
| 7218651 | Arrangement for the generation of a pulsed laser beam of high average output The invention is directed to an arrangement for generating a pulsed laser beam with high average output, in particular for generating a hot plasma which emits extreme ultraviolet (EUV) radiation. It is the object of the invention to find a novel possibility for gene... | 05/15/2007 |
| 7213762 | Hand-supportable imaging-based bar code symbol reader employing a CMOS-type image sensing array in combination with a band-pass optical filter subsystem, narrow-band illumination subsystem, and automatic light exposure measurement and illumination control subsystem A digital imaging-based bar code symbol reading system comprising: an area image formation and detection subsystem having a CMOS area image sensing array with an image capture mode; a LED-based illumination subsystem for producing narrow-band illumination; and a nar... | 05/08/2007 |
| 7203214 | Off-peak optical pumping of yttrium orthovanadate A laser includes an Nd:YVO4 crystal end-pumped with diode-laser light having a wavelength at which the absorption coefficient for Nd:YVO4 is less than about 0.35 (35%) of the absorption coefficient at 808 nm. ... | 04/10/2007 |
| 7199330 | Systems and methods for forming a laser beam having a flat top Multiple laser beams, each having a shape such as a Gaussian profile, can be incoherently combined to obtain a shaped, flat top laser beam. The combined laser beams can provide power levels necessary for material processing applications such as annealing, drilling, ... | 04/03/2007 |
| 7187507 | Optical component and laser irradiation apparatus The present invention provides an optical component for fixing a lens comprising a base, a holder, and a fastener. The base has a concave side surface and at least one first hole. The holder has a cylindrical shape and has a second hole penetrating through a center ... | 03/06/2007 |
| 7184229 | Optical switch element An optical switch element (1) for switching an optical path (2) comprises a fixed reflection element (4), which requires strict preciseness in positioning and angle-setting, and a movable optical path parallel displacement element (3A), w... | 02/27/2007 |
| 7173956 | Electrically controlled uniform or graded reflectivity electro-optic mirror An electrically controlled variable reflectance mirror that includes a Pockels cell which enables its retardation or birefringence to be controlled in order to vary the light outcoupled from a laser cavity. Since the retardation is a function of the voltage applied ... | 02/06/2007 |
| 7173601 | Method and apparatus for providing position feedback of an optical dithering element According to one embodiment, a method for providing position feedback for a device includes providing a photointerrupter having a light-emitting diode, a phototransistor, and an aperture between the light-emitting diode and the phototransistor. For a given size aper... | 02/06/2007 |
| 7170609 | Sensor systems and methods for quantification of physical parameters, chemical and biochemical volatile and nonvolatile compounds in fluids A system and method employing optical disc drives for quantitative analysis of physical, chemical and biochemical parameters are provided. The system including a disc drive for supporting and rotating an optical disc including at least one sensor spot; a light sourc... | 01/30/2007 |
| 7154925 | Gas laser oscillator A gas laser oscillator of easy maintenance which is capable of switching a beam mode at high speed. Electric discharge sections in which gas medium is flown are formed in an optical resonating space in an electric discharge tube between a rear mirror and an output m... | 12/26/2006 |
| 7136404 | Laser scanning device A laser scanning apparatus is provided with a laser diode that is driven to emit a laser beam, a scanning optical system that scans the laser beam emitted by the laser diode on a surface to be scanned, and a controller that drives the laser diode by supplying electr... | 11/14/2006 |
| 7128737 | Object figuring device A device for figuring objects by means of material erosion of the surface thereof, comprising a pulsed laser beam and a deflection device through which the laser beam is directed at the object surface and via which the object surface is guided. The invention is suit... | 10/31/2006 |
| 7116697 | Laser level The present invention relates to laser leveling device suitable for construction. The present invention uses a standard low cost laser diode module as the laser source and optical system. A novel method is provided to align the non-collimated beam emitted from the s... | 10/03/2006 |
| 7115457 | Method for crystallizing semiconductor with laser beams Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles betwe... | 10/03/2006 |
| 7113333 | Screen having micro-lens array and projector Aspects of the invention provide a screen or the like that enables a bright, homogeneous projection image to be observed in a wide range across an area where viewers are present. A screen having a micro-lens array formed of a plurality of micro-lens elements each ha... | 09/26/2006 |
| 7113527 | Method and apparatus for laser irradiation and manufacturing method of semiconductor device When CW laser is irradiated on a semiconductor film while being relatively scanned in a fabrication process of a semiconductor device, many crystal grains extending in a scanning direction are formed. The semiconductor film irradiated in this way has characteristics... | 09/26/2006 |
| 7104131 | Ultrasonic pulser-receiver Ultrasonic pulser-receiver circuitry, for use with an ultrasonic transducer, the circuitry comprising a circuit board; ultrasonic pulser circuitry supported by the circuit board and configured to be coupled to an ultrasonic transducer and to cause the ultrasonic tra... | 09/12/2006 |
| 7092415 | Laser optical apparatus There is provided a structure for reducing optical loss in an optical apparatus (homogenizer) for making the intensity distribution of a laser beam uniform. In a multi-cylindrical lens (a glass substrate having a multiplicity of cylindrical lenses formed ther... | 08/15/2006 |
| 7085303 | Laser with combined lens and birefringence compensator A laser includes a chamber having a front mirror and a back mirror defining a optical propagation path. An optical gain medium such as a solid state disk, rod or slab is located between the front and back mirrors within the chamber to produce a laser light along the... | 08/01/2006 |
| 7051940 | Data reader for multi-mode operation A data reader and method for data reading, such as a barcode scanner, wherein the scan pattern generating optics and other features are optimized for different modes of operation. In a preferred embodiment, different patterns are projected from different apertures i... | 05/30/2006 |
| 7016380 | Multi-beam laser scanning unit A multi-beam laser scanning unit including a plurality of laser diodes arranged in the vertical direction, and a plurality of collimating lens units having collimating lenses, which are arranged in the laser beam optical path in order to convert laser beams emitted ... | 03/21/2006 |
| 7010005 | Minimizing high power laser thermal blooming in the atmosphere The output of a high power pulsed or CW laser (22), which may be mounted on a vehicle (17) is reflected from a convex mirror (27) to a concave mirror (29) that is displaced radially outward on a rotating structure (14) from the con... | 03/07/2006 |
| 7006538 | Apparatus for locking bending mechanism that bends reflex type wavelength selection element A an apparatus for locking a bending mechanism that bends a reflex type wavelength selection element for a bending mechanism that bends a reflex type wavelength selection element comprises a locking assembly. The locking assembly locks the bending mechanism. This al... | 02/28/2006 |
| 6961361 | Laser irradiation apparatus An object is to obtain an even energy distribution of a laser beam in one direction, thereby conducting a uniform laser annealing on a film. A laser irradiation apparatus comprising: a lens for dividing a laser beam in one direction; and an optical system for... | 11/01/2005 |
| 6961184 | Laser irradiation apparatus There are disposed two homogenizers for controlling an irradiation energy density in the longitudinal direction of a laser light transformed into a linear one which is inputtted into the surface to be irradiated. Also, there is disposed one homogenizer for controlli... | 11/01/2005 |
| 6955956 | Method of manufacturing a semiconductor device In a laser irradiation apparatus having low running costs as compared with a conventional apparatus and a laser beam irradiation method using the same, a crystalline semiconductor film having a crystal grain of a grain size equivalent to or larger than a conventiona... | 10/18/2005 |
