Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8009356 | Tunable surface plasmon devices A tunable extraordinary optical transmission (EOT) device wherein the tunability derives from controlled variation of the dielectric constant of a semiconducting material (semiconductor) in evanescent-field contact with a metallic array of sub-wavelength apertures. ... | 08/30/2011 |
| 7903337 | High contrast grating light valve A grating light valve is provided with a plurality of spaced reflective ribbons, spatially arranged over a semiconductor substrate, the ribbons and substrate being provided with reflective surfaces. The grating light valve is configured to optimize the conditions fo... | 03/08/2011 |
| 7864426 | High aspect-ratio X-ray diffractive structure stabilization methods and systems A method to stabilize planar nanostructures, for example grating and zone plate lenses that are typically used for directing or focusing x-ray radiation, includes the deposition of a top, stabilizing layer. The structures are typically made on a flat substrate, and ... | 01/04/2011 |
| 7738173 | Optical safety element and system for visualising hidden information The invention concerns an optical security element and a system for visualising items of concealed information comprising such an optical security element. The optical security element has a substrate layer in which a relief structure defined by relief parameters, i... | 06/15/2010 |
| 7679825 | Optical safety element and system for visualising hidden information The invention concerns an optical security element and a system for visualising items of concealed information comprising such an optical security element. The optical security element has a substrate layer in which a relief structure defined by relief parameters, i... | 03/16/2010 |
| 7679826 | Diffractive, polarization modulating optical devices An optical device includes an encoding surface having a micro-relief pattern (22) over at least part thereof designed to produce a predetermined diffracted first image when illuminated in use, and an optically anisotropic layer (26) such as a polymeriz... | 03/16/2010 |
| 7630135 | Two-dimensional blazed MEMS granting A method for assuring a blazed condition in a DMD device used in telecommunications applications. By meeting certain conditions in the fabrication and operation of the DMD, the device can achieve a blazed condition and be very effective in switching near monochromat... | 12/08/2009 |
| 7502168 | Optical device and image display apparatus An optical device includes a light guide plate, and first and second reflective volume hologram diffraction grating members. The first member has interference fringes extending from therewithin towards surfaces thereof and arranged at an equal pitch. Each interferen... | 03/10/2009 |
| 7463420 | Configurable diffractive optical element This invention relates to a configurable diffractive optical element comprising an array of diffractive sub-elements having a reflective surface, wherein each sub-element has a controllable position with a chosen range, and in which a number of sub-elements are prov... | 12/09/2008 |
| 7460302 | Dynamic optical devices The invention provides an optical device, including a light-transmissive substrate, and a pair of different, parallel gratings including a first grating and a second grating, located on the substrate at a constant distance from each other, each of the pair of parall... | 12/02/2008 |
| 7440188 | Diffractive optical element A conventional diffractive optical element (DOE), which consists of repetition of a unit pattern , has an advantage of applicability of the Fast Fourier Transform algorithm to calculate diffraction beam spots intensities on lattice points on an image plane. But, the... | 10/21/2008 |
| 7437036 | Optical device and method for manufacturing the same A method for manufacturing an optical device is provided. The device includes an optical waveguide path having a Bragg grating and a movable portion disposed near the Bragg grating. A displacement of the movable portion provides a change of spacing of the Bragg grat... | 10/14/2008 |
| 7420737 | Reconfigurable zone plate lens A reconfigurable zone plate lens is disclosed. Some embodiments may include a central annular element having a first a first circumference centered about a central axis. Embodiments may also include a plurality of concentric annular elements of increasing circumfere... | 09/02/2008 |
| 7362493 | Micromirror and post arrangements on substrates A micromirror of a micromirror array of a spatial light modulator used in display systems comprises a mirror plate attached to a hinge that is supported by two posts formed on a substrate. Also the mirror plate is operable to rotate along a rotation axis that is par... | 04/22/2008 |
| 7360893 | Systems and methods for shaping wavefronts in polychromatic light using phase shifting elements A system for producing polychromatic light having selectively shaped wavefronts includes a source for generating light beams of at least two wavelengths (λ1, λ2). The beams are made up of a plurality of contiguous sub-beams that establish λ | 04/22/2008 |
| 7361878 | Image display apparatus and image pickup apparatus with two dimensional scanning An image forming apparatus with a light source unit emitting a light beam optically modulated based on image/video information, a scanning unit for scanning the light beam emitted from the light source unit two-dimensionally, an optical system that guides the light ... | 04/22/2008 |
| 7355714 | Reconfigurable MEMS fabry-perot tunable matrix filter systems and methods An optical apparatus may include a plurality of Fabry-Perot cavities and a controller. The plurality of Fabry-Perot cavities receives an incoming image. The controller controls a group of adjacent Fabry-Perot cavities of the plurality of Fabry-Perot cavities to samp... | 04/08/2008 |
| 7356218 | Variable demultiplexer A small variable demultiplexer capable of improving yield and stabilizing characteristics can be obtained. The small variable demultiplexer includes an SiO2 layer serving as a base medium, a waveguide array, a heater serving as an external refractive inde... | 04/08/2008 |
| 7351973 | Apparatus and method for providing thermal conductance in thermally responsive photonic imaging devices Exemplary embodiments of the present invention are directed to a photonic sensor and method of operation, in one embodiment a photonic has: a sensing element; a dielectric layer; a first electrode disposed between the sensing element and the dielectric layer; a seco... | 04/01/2008 |
| 7348104 | System and method for fabrication and replication of diffractive optical elements for maskless lithography A method is disclosed for forming an array of focusing elements for use in a lithography system. The method involves varying an exposure characteristic over an area to create a focusing element that varies in thickness in certain embodiments. In further embodiments,... | 03/25/2008 |
| 7342254 | Light-emitting device having a diffractive film on its light-output face and manufacturing method therefor Affords efficiently and at low cost practical, tiny light-emitting devices having an optically diffractive film on their light-output face. A light-emitting device (LD) includes a diffractive film (DF) formed on its light-output face; the diffractive film includes a... | 03/11/2008 |
| 7339738 | Nanomechanical near-field grating apparatus and acceleration sensor formed therefrom A nanomechanical near-field grating device is disclosed which includes two sub-gratings vertically spaced by a distance less than or equal to an operating wavelength. Each sub-grating includes a plurality of line-elements spaced apart by a distance less than or equa... | 03/04/2008 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7335398 | Method to modify the spatial response of a pattern generator Systems and methods are used to modify a layer on a substrate that is used to form a pattern generator, so that light reflecting from the modified substrate has a trapezoidal or other custom profile. The layer is modified using various vapor deposition techniques in... | 02/26/2008 |
| 7327508 | Display device using light modulator and having improved numerical aperture of after-edge lens system A display device using a light modulator and having an improved numerical aperture (NA) of an after-edge lens system is disclosed. The display device includes an illumination lens, a diffractive light modulator, an NA improvement unit, a filter system and a projecti... | 02/05/2008 |
| 7324282 | Apparatus, system and method for applying optical gradient forces The present invention relates to a system of applying optical gradient forces to form a plurality of optical traps to manipulate small particles. The system includes a light source for generating a focused beam of light which is directed along an optical axis though... | 01/29/2008 |
| 7321343 | Method for auto-stereoscopic image display with a wavelength filter array A method of spatial visualization in which several views are decomposed into bits of partial information, which are made optically visible by image rendering elements. Neighboring image rendering elements emit light of different wavelengths or wavelength ranges. Pro... | 01/22/2008 |
| 7319553 | Optical modulator module package structure Disclosed herein is an optical modulator module package structure. In the optical modulator module package structure, an optical modulator device and a drive integrated circuit device are flip-chip bonded to a substrate, and an opening of the substrate is blocked us... | 01/15/2008 |
| 7317575 | Tunable dispersive optical system A novel dispersion optical system based on at least one grating is provided. The pitches of the grating are linearly modulated so that the incident light is dispersed into different monochromatic light at different diffraction angles. In such a system, an order sort... | 01/08/2008 |
| 7315368 | Spectra generator for test and calibration A spectra generator having an electrically programmable diffraction grating. There may be a broad band light source that emits light which is diffracted by the grating. Diffracting elements in the grating may be individually adjustable so that generation of a specif... | 01/01/2008 |
| 7315557 | Multi-wavelength light source apparatus A pulse sequence is configured by making a pulse waveform output from a pulse light source into a super Gaussian pulse of the third order or higher, and input to a spectrum expanding device. The spectrum expanding device broadens the spectrum of the pulse sequence w... | 01/01/2008 |
| 7312906 | Switchable polymer-dispersed liquid crystal optical elements Transmission and reflection type holograms may be formed utilizing a novel polymer-dispersed liquid crystal (PDLC) material and its unique switching characteristics to form optical elements. Applications for these switchable holograms include communications switches... | 12/25/2007 |
| 7312013 | Photoreactive composition This invention provides a photoreactive composition in which reaction of a hydrolyzable metal compound takes place by irradiation of light. A photoreactive composition, which comprises a hydrolyzable metal compound (A) comprising a metal atom and a hydrolyzab... | 12/25/2007 |
| 7304719 | Patterned grid element polarizer The invention relates to a patterned grid polarizer for use in lithography, comprising a substrate that is transparent to ultraviolet (UV) light; and an array of elements patterned on the substrate, wherein the elements polarize UV light. The array of elements can b... | 12/04/2007 |
| 7289258 | Light modulator having variable blaze diffraction grating The present invention relates, in general, to a light modulator having a variable blaze diffraction grating and, more particularly, to a light modulator having a variable blaze diffraction grating, in which a diffraction member rotates due to piezoelectric force so ... | 10/30/2007 |
| 7286292 | Configurable diffractive optical element This invention relates to a configurable diffractive optical element comprising an array of diffractive sub-elements having a reflective surface, wherein each sub-element has a controllable position with a chosen range, and in which a number of sub-elements are prov... | 10/23/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7280206 | Method and apparatus to improve the dynamic range of optical devices using spatial apodization Devices and methods for processing multi-wavelength light beams and the single-wavelength components of such light beams are disclosed. In accordance with some embodiments, a spectral filter includes collimating and focusing optical elements, an apodizing filter, a ... | 10/09/2007 |
| 7277640 | Optical add/drop multiplexing systems The present invention overcomes problems associated with switch isolation, noise and crosstalk suppression, insertion loss, spurious reflections, wavelength tolerance, and compactness that are present in varying degrees in other add/drop systems. The present inventi... | 10/02/2007 |
| RE39865 | Method of fabricating Bragg gratings using a silica glass phase grating mask and mask used by same An index grating is imprinted in the core of an optical fiber using a specially designed silica glass phase grating mask. The phase mask is held in close proximity to the optical fiber. Laser irradiation of the phase mask with ultraviolet light at normal incidence i... | 10/02/2007 |
