A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Application No. | Application Title | Issue Date |
| 20110280271 | F-P CAVITY AND LASER USING SAID F-P CAVITY The disclosure discloses a fabry-Perot (F-P) cavity, which is a folded confocal cavity integrally formed by a monolithic optical element, the folded confocal cavity having three reflection surfaces, wherein a first reflection surface is a plane and at the same time serv... | 11/17/2011 |
| 20110170566 | Mode-locked solid state lasers using diode laser excitation A mode-locked laser employs a coupled-polarization scheme for efficient longitudinal pumping by reshaped laser diode bars. One or more dielectric polarizers are configured to reflect a pumping wavelength having a first polarization and to reflect a lasing wavelength hav... | 07/14/2011 |
| 20110150013 | RESONANT PUMPING OF THIN-DISK LASER WITH AN OPTICALLY PUMPED EXTERNAL-CAVITY SURFACE-EMITTING SEMICONDUCTOR LASER Laser apparatus comprises a solid-state laser-resonator including a thin-disk solid-state gain-medium. The thin-disk gain medium is optically pumped using radiation circulating in an OPS-laser resonator. The solid-state laser-resonator can be a passively mode-locked or ... | 06/23/2011 |
| 20110032961 | MONOLITHIC FOLDED F-P CAVITY AND SEMICONDUCTOR LASER USING THE SAME This invention relates to a monolithic folded F-P cavity used for semiconductor laser, which is composed of a monolithic optical element. The monolithic optical element is made of the material having low propagation loss for a certain spectrum range. Light entering thro... | 02/10/2011 |
| 20100214652 | Folded Optical System and a Lens for Use in the Optical System An optical system having an optical axis, the optical system comprising: (I) a light source; (II) a reflector; (III) a lens component situated between the light source and the reflector; (IV) a receiver, wherein the light source and the receiver are situated substantial... | 08/26/2010 |
| 20100150187 | LASER A laser apparatus in which the elimination of separate optical components to provide intra-cavity polarization and compensation for thermally induced birefringence, and their associated losses, results in an improvement in efficiency and reduction in complexity over pri... | 06/17/2010 |
| 20090190623 | EXTERNAL-CAVITY OPTICALLY-PUMPED SEMICONDUCTOR-LASER WITH A RESONATOR STOP An optically pumped semiconductor-laser (OPS-laser) resonator includes an arrangement for delivering optical pump radiation on an OPS-chip to cause fundamental radiation to circulate in the resonator. The resonator includes second and third-harmonic generating crystals ... | 07/30/2009 |
| 20090059991 | RE-ENTRANT STRUCTURE FOR THIN DISK RESONATORS The present embodiment provides a system and method for lowering the saturated gain level of a thin-disk laser oscillator by multipassing each gain generator in such a way to cancel some of the wavefront error contributions from the disk surfaces. Wavefront aberrations ... | 03/05/2009 |
| 20090052481 | Laser light source device and image generating device using same Disclosed herein is a laser light source device including a pumping light source; a pair of resonator mirrors; a laser medium and a wavelength converting element within a resonator formed by the resonator mirrors; the laser medium being pumped by light in a transverse m... | 02/26/2009 |
| 20080013587 | Multiple-Reflection Delay Line For A Laser Beam And Resonator Or Short Pulse Laser Device Comprising A Delay Line Of This Type A multiple-reflection delay line member for a laser beam, including mirror elements for the multiple reflection of the laser beam to reduce the dimensions of a laser resonator at a predetermined optical length, wherein the mirror elements are comprised of two oppositely... | 01/17/2008 |
| 20070286247 | Frequency-doubled laser resonator including two optically nonlinear crystals An intracavity frequency-doubled includes a laser resonator including at least one gain element and two optically nonlinear crystals. The two optically nonlinear crystals independently double the frequency of fundamental radiation in the resonator. In one example the cr... | 12/13/2007 |
| 20070201531 | OPTICALLY PUMPED SEMICONDUCTOR LASER DEVICE An optically pumped semiconductor laser device having a surface-emitting vertical emission region (1) and at least one monolithically integrated pump radiation source (2) for optically pumping the vertical emission region (1). The semiconductor lase... | 08/30/2007 |
| 20070201532 | Longitudinally pumped solid state laser and methods of making and using A laser apparatus for producing a laser light beam can include a gain medium; a pump light source to provide a pump light beam to the gain medium; a first reflector disposed between the first gain medium and the first pump light source and spaced apart from a gain porti... | 08/30/2007 |
| 20070160104 | Ultra-short laser source with rare earth ions and stable pulse train and device for lengthening a laser cavity The invention relates to a rare earth ion ultrashort laser source including a resonant cavity (1) having a first output face (2) partially reflecting and a second reflecting face (3). Said source also comprises a first active material (4). Sa... | 07/12/2007 |
| 20070002923 | Metal reflector and process for producing it The invention relates to a process for producing a high-precision reflector and its coating. A reflector is produced from a solid material using a material-removing process and is coated with a cold-light mirror layer. ... | 01/04/2007 |
| 20060251142 | Apparatus and methods for altering a characteristic of a light-emitting device 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 dev... | 11/09/2006 |
| 20060251141 | Optically pumped external-cavity semiconductor laser with multiple gain structures A laser-resonator terminated by two end mirrors is folded by a plurality of OPS-structures and a plurality of fold-mirrors. The OPS-structures are energized by focused radiation from diode-laser bars. The fold-mirrors are configured and arranged with respect to the OPS-... | 11/09/2006 |
| 20060245462 | LIGHT SCANNING DEVICE, METHOD FOR CONTROLLING LIGHT SCANNING DEVICE, AND IMAGE DISPLAY DEVICE A light scanning device that projects light beams modulated in response to image signals. The light scanning device includes: a light source that emits the light beams; a scanner that scans the light beams from the light source in a first direction and a second directio... | 11/02/2006 |
| 20060209916 | Very high repetition rate narrow band gas discharge laser system A laser system and method is disclosed which may comprise a first line narrowed gas discharge laser system producing a first laser output light pulse beam at a pulse repetition rate of ≧2000 Hz; a second line narrowed gas discharge laser system producing a second lase... | 09/21/2006 |
| 20060193362 | Fold device for guiding beams in a laser The use of reflecting surfaces that are inclined towards one another enables the multiple reflection of a beam path to be achieved in a laser structure. This permits the realization of compact laser assemblies. The introduction of beam-influencing media between the refl... | 08/31/2006 |
| 20060159152 | Laser oscillator A laser oscillator capable of restraining the generation of a diffracted beam so as to obtain a laser beam with high power and high quality. The laser oscillator has an output mirror, a rear mirror and first and second concave mirrors. These mirrors cooperate together s... | 07/20/2006 |
| 20060140241 | Laser amplifier In a solid-state laser amplifier including at least two laser-active media in a common laser radiation field, the laser-active media do not form a hard aperture for the laser radiation field. Each of the laser-active media define a plane that is penetrated by the laser ... | 06/29/2006 |
| 20050163186 | High-power diode laser system Disclosed is a diode laser system comprising a diode amplifier member with a large transverse gain area. The diode amplifier member includes an amplifying medium for amplifying a number of spatial modes of a spatial light distribution. The laser system further comprises... | 07/28/2005 |
| 20050123017 | External cavity tunable laser system formed MEMS corner mirror A tunable laser system is provided. The tunable laser system includes a light source, a grating, a corner mirror array, and a receiver. In which, the light source emits a beam, and the grating is located in front of the light source for reflecting the beam to form a fir... | 06/09/2005 |
| 20050111510 | Corner-pumping method and gain module for solid state slab laser A corner-pumping method for slab laser and a solid-state laser gain module are disclosed. In one embodiment, said method comprises directing a pump light into a laser slab through slab corners of said laser slab; propagating the pump light within the laser slab by total... | 05/26/2005 |
| 20050090030 | 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-reflection... | 04/28/2005 |