Patent application number | Description | Published |
20090315287 | Mobile Cart - A mobile cart that may be used to carry a computer and/or a secure medication storage compartment. The mobile cart includes a multi-wheeled base, which may include two or more omni-directional, locking swivel casters and one or more non-swiveling, self-leveling wheels. The mobile cart is also height-adjustable. When used as a bedside medication cart, the mobile cart includes an auto-closing and auto-locking medication storage compartment that can be accessed through an electronic password, or manually via a standard key-operated lock. The mobile cart may also include a computer in addition to, or in place of, the medication storage compartment. | 12-24-2009 |
20100012796 | Mobile Cart Laptop Computer Retainer and Stand System - A retainer and stand system for a laptop computer of the type having a keyboard portion and a display portion that is pivotally coupled to the keyboard portion, the retainer and stand adapted to be mounted to a mobile cart and releasably but securely retaining the laptop such that the display portion is visible to a user of the mobile cart. The retainer and stand has a five-sided receptacle defining a bottom portion, a front portion coupled to the bottom portion, a rear portion coupled to the bottom portion and spaced from the front portion, and spaced left and right side portions coupled to both the front and rear portions, the receptacle thereby defining an open-top cavity of sufficient size to hold at least most of the keyboard portion of the laptop within the cavity with the display portion projecting above the cavity, in which the receptacle is adapted to be mounted to a mobile cart to thereby make the laptop display visible to a user of the cart, and a cable coupled to the receptacle and adapted to be releasably coupled to the laptop, to secure the laptop to the receptacle. | 01-21-2010 |
20110140381 | Mobile Cart Base with Traction Wheel - A multi-wheeled base for a mobile cart includes one or more swiveling, optionally locking, caster wheels and one or more non-swiveling traction wheels to improve the maneuverability of the cart by making it easier to steer and stop. The traction wheels may be manually-engaged traction wheels, which may be operated by a cam and lever. The traction wheels may also be automatically-engaged traction wheels operated by a motor and a threaded shaft, and activated by a motion-sensitive sensor or by an on/off electrical switch or button. The traction wheels are preferably in contact with the floor when the mobile cart is moving, and raised above the surface of the floor when the cart is stationary. | 06-16-2011 |
20120248719 | Mobile Cart Base with Traction Wheel - A multi-wheeled base for a mobile cart includes one or more swiveling, optionally locking, caster wheels and one or more non-swiveling traction wheels to improve the maneuverability of the cart by making it easier to steer and stop. The traction wheels may be manually-engaged traction wheels, which may be operated by a cam and lever. The traction wheels may also be automatically-engaged traction wheels operated by a motor and a threaded shaft, and activated by a motion-sensitive sensor or by an on/off electrical switch or button. The traction wheels are preferably in contact with the floor when the mobile cart is moving, and raised above the surface of the floor when the cart is stationary. | 10-04-2012 |
Patent application number | Description | Published |
20100045992 | METHOD OF DETERMINING THE PRETILT ANGLE IN A LIQUID-CRYSTAL CELL - To determine the tilt angle in a twisted nematic liquid-crystal cell, the transmission of the cell is calculated as a function of the angle of incidence of a light beam of given wavelength λ using apparent values of the thickness of the cell cavity, of the extraordinary index and of the twist angle, in order to obtain a plurality of simulation curves, one per given pretilt angle, the transmission curve is measured as a function of the angle of incidence of the cell along the axis passing through the top and bottom positions of the cell, for the light beam of wavelength λ, using a contrast meter, and the coincidence between this measurement curve and a curve from among the plurality of simulation curves gives the pretilt angle of this cell. | 02-25-2010 |
20110116151 | MULTILAYER STRUCTURE HAVING A PHOTOCHROMIC HOST MATRIX AND MANUFACTURING METHOD - A photochromic structure includes a plastic support of optical grade with good light transparency, having at least one face with an adhesive layer impregnated with a solution of a solvent with photochromes, having a flexible host matrix for the photochromes, which is mounted by adhesion onto another support. A structure with a uniform flexible photochromic matrix, which has rapid transition times, notably a rapid relaxation time, is thus obtained. The structure is mountable, and advantageously repositionable. It is produced via a process using roll-milling combined with a system for dispensing the solvated solution of photochromes upstream of the rolls, via which a support strip of an adhesive is entrained by the rolls, and the adhesive is gradually impregnated and then laminated on another support. | 05-19-2011 |
20120287179 | Method for Writing an Image in a Liquid Crystal Display - A method of display on a color sequential liquid crystal screen, notably an LCOS technology screen (integrated circuit screen), is provided. The liquid crystal between a pixel electrode and counter-electrode common to all pixels, and provision is made to alternate the potential of the counter-electrode at each frame. Writing an image comprises successive addressing of various rows and simultaneous application of a voltage level to column conductors. The writing phase is followed, before the end of a frame, by a phase of switching counter-electrode potential wherein the transistors of the various rows are successively turned on for durations which overlap mutually such that all transistors are simultaneously on at a given moment of this switching phase, and the potential of the counter-electrode is switched at this moment. Overvoltages are thus avoided on the control transistors at the level of the pixel at the moment of the switching of counter-electrode potential. | 11-15-2012 |
20120327356 | Phase Modulator Containing a Liquid Crystal Having a Helical Structure - An unpolarized light beam phase modulator emitting in a given wavelength range comprises at least one cell containing a liquid crystal having a helical structure and means for applying a voltage to said cell, said liquid crystal having a torsion elastic constant greater than its twisting elastic constant so as to ensure continuous stable behavior voltage-wise, said liquid crystal having a sufficient number of turns and in which the axis of the turns is in the light-propagation direction, making it possible to obtain an optical effect generated by the liquid crystal on the electrical field that is identical regardless of the direction of this electrical field, said cell being transparent in said wavelength range. | 12-27-2012 |
20130107196 | Wave Front Analyzer Having Liquid-Crystal Microlenses | 05-02-2013 |
20130335666 | NANOPROJECTOR PANEL FORMED OF AN ARRAY OF LIQUID CRYSTAL CELLS - A nanoprojector panel formed of an array of cells, each cell including a liquid crystal layer between upper and lower transparent electrodes, a MOS control transistor being arranged above the upper electrode, each transistor being covered with at least three metallization levels. The transistor of each cell extends in a corner of the cell so that the transistors of an assembly of four adjacent cells are arranged in a central region of the assembly. The upper metallization level extends above the transistors of each the assembly of four adjacent cells. The panel includes, for each assembly of four adjacent cells, a first conductive ring surrounding the transistors, the first ring extending from the lower metallization level to the upper electrode of each cell, with an interposed insulating material. | 12-19-2013 |
20140055734 | Liquid Crystal Display Matrix with Irregular Aperture Geometry - In the field of active matrix liquid crystal displays and, more particularly, to microdisplays produced using collective fabrication technologies, a matrix comprises, for each pixel, a transparent electrode and opaque regions resulting from the presence in the pixel of at least one row conductor, one column conductor, and one control transistor for the pixel connected to the electrode of the pixel. The pixel comprises at least three possible geometrical configurations, the position of the transistor with respect to the rows and to the columns being different in the various configurations, the various configurations being distributed in a pseudo-random manner within at least one region of the matrix. | 02-27-2014 |
20140055865 | COMPACT HEAD-UP DISPLAY - A head-up display, including an image source and a mirror positioned along parallel main planes and separated by a first distance, the mirror being shaped to form virtual images of the images provided by the image source at a second distance from the mirror, greater than the first distance. | 02-27-2014 |
20140099744 | INTERCONNECTION METHOD FOR A MICRO-IMAGING DEVICE - A method for producing an opto-microelectronic micro-imaging device includes a step of forming a first functional part on the base of a first substrate, a base layer, and first electric connection pad. The first functional part is transferred onto a second substrate. The first substrate is thinned until the base layer is reached. A second functional part is formed on the base layer. One via is connected to the first electric connection pad and through the first functional part. The step of forming the second functional part includes connecting the via with the second electric connection pad. | 04-10-2014 |
20140113404 | METHOD FOR MANUFACTURING AN OPTO-MICROELECTRONIC DEVICE - Method for manufacturing a microelectronic device from a first substrate ( | 04-24-2014 |
20140132644 | LIQUID CRYSTAL DISPLAY COMPRISING ERASE ELECTRODES - Active matrix liquid crystal displays, mainly applicable to screens with small dimensions, fabricated for example starting from silicon substrates, are especially applicable to display operation in color sequential mode. The pixel comprises a pixel electrode controlled by a control transistor and counter-electrodes situated on the same side of the liquid crystal as the pixel electrode and parallel to the pixel electrode; the liquid crystal is composed of molecules having a natural rest orientation in the absence of a voltage between the pixel electrode and the counter-electrodes and a different orientation in the presence of an electric field created between the pixel electrode and the counter-electrodes. Erase electrodes are situated on either side of the pixel in a transverse direction with respect to the counter-electrodes and are designed to produce, during an erase phase, an erase electric field tending to return the molecules of the liquid crystal to their rest orientation. | 05-15-2014 |
20140145916 | HEAD-UP DISPLAY PROVIDING AN IMPROVED VIEWING COMFORT - A head-up display including a display screen including an array of display pixels arranged in rows and in columns, where the display screen is pivoted, around an axis perpendicular to the screen, by an inclination angle between 10 and 80 degrees, with respect to the position of the display screen for which a group of adjacent activated display pixels of a same row appears to an observer as being directed along the horizontal or vertical direction. | 05-29-2014 |
20140168550 | POLARISATION ROTATOR WITH SMALL INDUCED ELLIPTICITY - The invention relates to a polarisation rotator with small polarisation ellipticity. The rotator includes a first optical unit ( | 06-19-2014 |
20140218672 | METHOD OF PRODUCING A PHASE DEVICE BASED ON A TWISTED LIQUID CRYSTAL HAVING OPTIMIZED STRUCTURE OPERATING UNDER UNPOLARIZED LIGHT - The invention relates to a method of producing a phase device operating at at least one wavelength (λ) comprising a cell containing a liquid crystal possessing a helical structure, inserted between two alignment layers possessing rubbing axes and means for applying a voltage to said cell, said helical structure exhibits a number of helical turns k, said liquid crystal exhibiting a defined angle of twist Θ between the rubbing axes of the two alignment layers, characterized in that it comprises the following steps: —the determination of a compensation angle ∈ satisfying the following equation: (formula) with: N the integer closest to (formula) the angle of twist Θ=2Kπ−∈ Δn: the birefringence of the liquid crystal; d: the thickness of the liquid crystal cell; λ: the wavelength of the light beam which passes through the liquid crystal cell; the rubbing of one of the faces in a direction of alignment of said liquid crystal molecules, defining the angle of twist: θ=2Kπ−∈. | 08-07-2014 |
20140353853 | METHOD FOR MANUFACTURING A MULTILAYER STRUCTURE ON A SUBSTRATE - The invention relates to a method for manufacturing a multilayer strucute on a first substrate, the method including: using the first substrate made of a first material having a Young's modulus E | 12-04-2014 |
20140363951 | METHOD FOR MANUFACTURING A MULTILAYER STRUCTURE ON A SUBSTRATE - The invention relates to a method for manufacturing a multilayer structure on a first substrate made of a material having a first Young's modulus. The method includes: providing a second substrate covered with the multilayer structure, the multilayer structure having a planar surface opposite the second substrate, the second substrate being made of a material having a second Young's modulus; applying first deformations to said surface; molecularly boding the first substrate to said surface, the molecular bonding resulting in the appearance of second deformation in said surface in the absence of the first deformations, the first deformations being opposite the second deformations; and removing the second substrate, the resulting deformations in said surface being less than 5 ppm. | 12-11-2014 |
20140368193 | ISOTROPIC AND INTEGRATED OPTICAL PUMPING MAGNETOMETER - A magnetic resonance optical pumping isotropic magnetometer including a laser, a gas filled cell, a HF discharge circuit, RF magnetic field generating coils surrounding the cell, a first frequency regulating mechanism of an RF generator, a second polarization regulating mechanism of the laser beam, and a third regulating mechanism of the direction of the RF magnetic field. The direction of polarization of the laser beam at an inlet of the cell is orthogonally aligned with the magnetic field to be measured by virtue of a liquid crystal polarization rotator. The magnetometer is well-adapted to an integrated arrangement. | 12-18-2014 |
20150085371 | COMPACT AND ENERGY-EFFICIENT HEAD-UP DISPLAY - The invention relates to a head-up display comprising a group of sub-screens ( | 03-26-2015 |
20150103409 | COMPACT AND ENERGY-EFFICIENT HEAD-UP DISPLAY - The invention relates to a head-up display comprising a group of optical sub-systems ( | 04-16-2015 |
20150138614 | WINDSHIELD IMAGE DISPLAY SYSTEM - A display system, including: a vehicle windshield; a projector located on the side of a first surface of the windshield and arranged to enable to project an image in the windshield, towards a second surface of the windshield opposite to the first surface, so that the angles of incidence of the rays projected on the second surface are greater than the limiting angle of total reflection of the light on the second surface; and a transmissive diffuser coating an area of the first surface located on the path of the projected rays after at least one reflection on the second surface. | 05-21-2015 |
20150138644 | COMPACT AND ENERGY-EFFICIENT HEAD-UP DISPLAY - The invention relates to a head-up display comprising sub-screens ( | 05-21-2015 |
20150206938 | METHOD FOR MANUFACTURING A MULTILAYER STRUCTURE ON A SUBSTRATE - The invention relates to a method for manufacturing a multilayer structure on a first substrate made of a first material having a Young's modulus Ev, the method including: using a second substrate having a planar surface covered by the multilayer structure, the second substrate being made of a second material having a Young's modulus Es that is different from the Young's modulus Ev, and a thickness es, the mean Young's modulus Es over thickness es, measured in any direction in a plane parallel to said surface, being constant, plus or minus 10%; bonding the first substrate to the multilayer structure; and removing the second substrate. | 07-23-2015 |
20150270325 | DISPLAY SCREEN HAVING ORGANIC LIGHT-EMITTING DIODES - The invention relates to a matrix display screen which includes, in sequence: a mounting ( | 09-24-2015 |
20150301335 | COMPACT AND ENERGY-EFFICIENT HEAD-UP DISPLAY - The invention relates to a head-up display comprising a group of optical sub-systems ( | 10-22-2015 |
20150348321 | Augmented reality display device - A rear projection display screen, including a film having a surface facing the back of the screen including ridges having a triangular cross-section defining prisms, wherein at least a wall of each of said ridges has an inclination such that the angle of incidence, on said wall, of a light ray normal to the display is equal, to within 5 degrees, to the Brewster angle of the surface of separation formed by said wall. | 12-03-2015 |
20160054618 | REAR PROJECTION DISPLAY SCREEN AND DEVICE - The present invention involves a rear projection display screen, including: a transmissive diffuser; a liquid crystal layer arranged on the rear surface side of the diffuser; and on the side of a first surface of said layer, first and second alternated parallel conductive strips regularly distributed across the entire surface of the screen, the first strips being interconnected, and the second strips being interconnected without being connected to the first strips. | 02-25-2016 |