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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7471430 | Holographic image corrector The invention provides a holographic image corrector in a microscope, which employs an optical system that has as an objective a lens or mirror. The characteristics of the objective are recorded by sending a first laser beam through a spatial filter (or an array of ... | 12/30/2008 |
| 7418170 | Optical device and virtual image display device A virtual image display device is provided which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device includes an optical waveguide (13) to guide, by internal total refl... | 08/26/2008 |
| 7408687 | Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic generation with integrated automatic displacement and thermal beam drift compensation A laser beam delivery system for transforming a laser energy profile into a desired laser beam output energy profile. The laser beam delivery system comprises a laser for generating a laser beam along a beam path, at least one extra-cavity harmonic generation elemen... | 08/05/2008 |
| 7407103 | Bioptical holographic laser scanning system A bioptical holographic laser scanning system employing a plurality of laser scanning stations about a holographic scanning disc having scanning facets with high and low elevation angle characteristics, as well as positive, negative and zero skew angle characteristi... | 08/05/2008 |
| 7319783 | Methods for minimizing aberrating effects in imaging systems A method for reducing optical distortion within an optical system employing adaptive optics, includes modifying phase of a wavefront of the optical system with a wavefront coding element. Image data of the optical system is post-processed to remove phase effects ind... | 01/15/2008 |
| 7317482 | Distance calculating method and imaging device A distance calculation method and an imaging device that can be applied to a digital camera. The method includes calculating a distance between a point corresponding to an optical axis of a lens sub-system of the imaging device and an input point, and using the calc... | 01/08/2008 |
| 7298535 | Digital situation indicator A personal monitoring system to be worn by an individual in a hazardous situation comprises an enclosed face mask which includes a transparent shield over at least the eves a sensor module secured to the individual which includes a plurality of sensors, a microproce... | 11/20/2007 |
| 7286755 | Method and apparatus for testing an optical component The present invention relates to a system for testing the connection paths of a switch fabric by using a spontaneously emitted signal as a test signal. The system includes at least one first module and at least one second module, wherein each one of the second modul... | 10/23/2007 |
| 7262890 | Observation optical system An observation optical system has an entrance surface, a reflecting surface, and an exit surface. At least one of these surfaces is configured as a free-formed surface, to which a volume holographic optical element (HOE) is closely adhered. The observation optical s... | 08/28/2007 |
| 7260251 | Systems and methods for minimizing aberrating effects in imaging systems An imaging system for reducing aberrations from an intervening medium, and an associated method of use are provided. The system may be an optical or task-based optical imaging system including optics, such as a phase mask, for imaging a wavefront of the system to an... | 08/21/2007 |
| 7224501 | Light-emitting device and apparatus having the same A light-emitting device is disclosed which allows efficient irradiation of light from a plurality of light sources to achieve a predetermined light emission characteristic and has a small size. The light-emitting device has an optical member which includes a first r... | 05/29/2007 |
| 7206107 | Method and system for beam expansion in a display device An exit pupil extender wherein the relative amount of different color components in the exit beam is more consistent with that of the input beam. In order to compensate for the uneven amount in the diffracted color components in the exit beam, the exit pupil extende... | 04/17/2007 |
| 7205960 | Chromatic planar optic display system A compact chromatic display system to be used by a viewer to view a virtual image including: (a) an output optical device, which enables the viewer to see through it a chromatic virtual image. (b) an input optical device. (c) an optical arrangement for directing lig... | 04/17/2007 |
| 7184618 | Optical switch array for routing multiple optical signals An apparatus for routing a plurality of optical input signals to a plurality of optical output connections. In one embodiment, a plurality of optical switches are combined to route a number of optical signals that exceed the number of optical inputs for a single swi... | 02/27/2007 |
| 7177550 | On-axis laser receiver wavelength demultiplexer with integral immersion lensed detectors The present invention is directed to a laser communication receiver for wireless optical communication. A laser communication receiver includes a diffractive optical element to permit detectors at different spatial locations to detect different wavelengths of the op... | 02/13/2007 |
| 7138156 | Filter design algorithm for multi-variate optical computing Within a method of making an optical interference filter, sample spectra and measurements of a predetermined characteristic associated with respective spectra are provided. Upon selection of an initial number of filter layers and a thickness for each layer, a transm... | 11/21/2006 |
| 7123413 | DOE-based systems and devices for producing laser beams having modified beam characteristics Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from a commercial-grade laser diodes, over an extended range... | 10/17/2006 |
| 7123844 | Optical computational system In optical filter systems and optical transmission systems, an optical filter compresses data into and/or derives data from a light signal. The filter way weight an incident light signal by wavelength over a predetermined wavelength range according to a predetermine... | 10/17/2006 |
| 7102804 | Optical data communication The present invention employs a method for transmitting and/or receiving high data bandwidths at reduced cost by employing a holographically corrected telescope for transmitting or receiving data-carrying signals remotely, at IR, optical or UV frequencies for low co... | 09/05/2006 |
| 7085027 | Image combiner and image display The light from the image forming element 2 is reflected by the PBS 8, and is incident on the λ/4 plate 7 so that this light is converted into circularly polarized light. Subsequently, the light is subjected to a reflection/diffraction effect an... | 08/01/2006 |
| 7081956 | Method and device for determining reflection lens pupil transmission distribution and illumination intensity distribution in reflective imaging system A method and device for determining reflection lens pupil transmission distribution in a photolithographic reflective imaging system, the device including an illumination source; a reticle supporting a reflective mask layer having a plurality of light-reflecting are... | 07/25/2006 |
| 7075724 | Compensator optics to improve the stability of beam delivery systems that utilize beam shaping technology A compensator/remapper and method for compensation and remapping of a laser beam for control and correction of laser pointing and thermal drift instability in a laser beam delivery system including a laser generating a laser beam and a plurality of optical elements ... | 07/11/2006 |
| 7076100 | Method and apprartus thereof for detecting a hidden image in a hologram An apparatus for detecting a hidden image, which is formed in a first area of a hologram, is disclosed. The apparatus has a laser device for generating a laser beam and projecting the laser beam to the hologram, and a sensing device for sensing light that reflects f... | 07/11/2006 |
| 7051922 | Compact bioptical laser scanning system A bioptical holographic laser scanning system employing a plurality of laser scanning stations about a holographic scanning disc having scanning facets with high and low elevation angle characteristics, as well as positive, negative and zero skew angle characteristi... | 05/30/2006 |
| 7043073 | Distortion correcting rendering techniques for autostereoscopic displays Characterization of hologram elements (hogels) produced using specially designed test pattern images provides more accurate information that can be used to render images for use in hogel production. Once a test pattern is selected, one or more hogels are recorded in... | 05/09/2006 |
| 7031573 | Fiber optic devices having volume Bragg grating elements Fiber optic devices including volume Bragg grating (VBG) elements are disclosed. A fiber optic device may include one or more optical inputs, one or more VBG elements, and one or more optical receivers. Methods for manufacturing VBG elements and for controlling filt... | 04/18/2006 |
| 7006266 | Optical switching devices The invention provides an optical switcing device, including a substrate having at least one polarization-selective multiplexing grating; at least one polarization-selective demultiplexing grating, and a polarization rotation element acting as a dynamic ½ λ plate,... | 02/28/2006 |
| 6980831 | Radio communication base state system including optical advanced base station A wireless communication base station system of the present invention includes a wireless key base station, an optical forward base station, and an optical transmitter which connects the wireless key base station and the optical forward base station to each other. A... | 12/27/2005 |
| 6970292 | Beam shaping element for use in a lithographic system A beam homogenizer that minimizes undesired intensity variations at the output plane caused by sharp breaks between facets in previous embodiments. The homogenizer includes a hologram made up of irregularly patterned diffractive fringes. An input beam illuminates at... | 11/29/2005 |
| 6961162 | Observation optical system using volume hologram An observation optical system comprises an image display element 5 and an eyepiece optical system which introduces an image formed by the image display element 5 to a center of an eye of an observer without forming an intermediate image, so as to allow... | 11/01/2005 |
| 6950215 | Method and apparatus for monitoring optical switches An optical switching apparatus is provided. Generally, a plurality of optical input switches is provided. A plurality of optical output switches is provided. A plurality of central optical switches connected between the plurality of input switches and plurality of o... | 09/27/2005 |
| 6934475 | Free-space optical communications using holographic conjugation A beacon beam is transmitted from a receiver to a transmitter. The transmitter generates and transmits a conjugate beacon beam back to the receiver, where it is interfered with a local oscillator beam to form a hologram. The hologram is used to configure a spatial l... | 08/23/2005 |
| 6922286 | Off-axis diffractive beam shapers and splitters for reducing sensitivity to manufacturing tolerances A diffractive element used in conjunction with a grating to move a desired order beam off-axis, thereby reducing interference by undesired orders. Use of the off-axis grating allows a more uniform beam in the presence of manufacturing defects, such as etch depth err... | 07/26/2005 |
| 6891615 | Conical diffraction grazing incidence spectrometer and diffraction grating for use in the spectrometer A conical diffraction grazing incidence spectroscope for performing wavelength scanning by rotating a diffraction grating about an axis set parallel to groves in a grazing surface of the grating. ... | 05/10/2005 |
| 6885484 | Optical system and method for fabricating a holographic optical element A simple, compact optical system is provided that includes a transmissive optical element and a HOE but that nevertheless does not require an extra optical element for the correction of chromatic aberration. The HOE is designed to have diffractive efficiency for eac... | 04/26/2005 |
| 6873733 | Combined wavefront coding and amplitude contrast imaging systems The present invention provides extended depth of field or focus to conventional Amplitude Contrast imaging systems. This is accomplished by including a Wavefront Coding mask in the system to apply phase variations to the wavefront transmitted by the Phase Object bei... | 03/29/2005 |
| 6867889 | Transceiver for a wireless optical telecommunication system A holographic optical element (HOE) device is mounted in wireless optical telecommunication system transceiver. The HOE device includes a developed emulsion material having an interference pattern recorded thereon, sandwiched between a pair of elements, such as a pa... | 03/15/2005 |
| 6829091 | Optical system and optical instrument with diffractive optical element An optical system for forming an image of an object. The optical system includes an optical element, which is deformed by the weight thereof, and at least one optical member for preventing a change in optical performance of the optical system due to deformation of t... | 12/07/2004 |
| 6825980 | DOE-based systems and devices for producing laser beams having modified beam characteristics Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from a commercial-grade laser diodes, over an extended range... | 11/30/2004 |
| 6809846 | Optical switch and optical network Disclosed is an optical switch for transmitting or shutting down an input light signal in accordance with a set switching state. The optical switch comprises first and second optical amplifiers connected in cascade. When an optical fiber amplifier comprising EDFs ( | 10/26/2004 |
