Abstract: A resonant power circuit, a magnetic resonance imaging system, and a transformer are provided. The resonant power circuit is disposed within a scan room of a magnetic resonance imaging system, and is used for supplying power to a switch device in a radio-frequency amplifier of the magnetic resonance imaging system. The resonant power circuit includes: an inverter circuit, a resonant transformer circuit, and a rectifier circuit. The ratio of a resonant frequency is greater than 1 and less than a first threshold, a series resonant frequency being determined according to a resonant capacitor and a resonant inductor.

Abstract: A method includes providing an LCD comprising an LED backlight with light emitting diodes that emit lights of red color, green color, and blue color. The method also includes operatively connecting the light emitting diodes to a backlight driver and a dimming signal processing unit such that the backlight driver provides control instructions to the light emitting diodes. The method also has controlling the three color light emitting diodes to provide a good image quality and some color effects for the images displayed on the LCD screen.

Abstract: A method includes providing a chandelier comprising at least three light emitting diodes, with each of the at least three light emitting diodes having at least one color of red, green, and blue colors. The method also includes operatively connecting the light emitting diode to a controller and a memory such that the controller provides control instructions to the light emitting diodes. The method also has controlling the at least three light emitting diodes to provide a decorative lighting effect.

Abstract: A method includes providing a chandelier comprising at least three light emitting diodes, with each of the at least three light emitting diodes having at least one color of red, green, and blue colors. The method also includes operatively connecting the light emitting diode to a controller and a memory such that the controller provides control instructions to the light emitting diodes. The method also has controlling the at least three light emitting diodes to provide a decorative lighting effect.

Abstract: The invention relates generally to the changes in gene expression in mast cells and tissues removed from patients with allergic hypersensitivity. The invention specifically relates to the genes MC21, MC22, MC25, MC33, MC36, and MC39, which are differentially expressed in mast cells compared to normal tissues and in resting mast cells versus activated mast cells.

Abstract: Brightness in the LCD is enhanced by polarization recycling using a pre-polarizing film to pre-polarize light, and a special reflector for recycling light reflected by the pre-polarizing film. In one embodiment, the pre-polarizing film comprises a layer of DBEF brightness enhancement film, and the rear reflector is made of a PTFF material. In another embodiment, the rear reflector is covered with a film comprising barium sulfate. The multiple light sources are selected such that, at any color temperature within a predetermined range, the brightness of the LCD is not reduced below a given threshold minimum (e.g., 70 percent of the maximum brightness). Another constraint for selecting the light sources is that within the predetermined color temperature range, the color temperature is held close to the black body curve of the CIE chromaticity diagram. The light sources are also selected so that their maximum brightness point is set to be near the middle of the predetermined color temperature range.

Abstract: The invention relates generally to the changes in gene expression in mast cells and tissues removed from patients with allergic hypersensitivity. The invention specifically relates to the genes MC21, MC22, MC25, MC33, MC36, and MC39, which are differentially expressed in mast cells compared to normal tissues and in resting mast cells versus activated mast cells.

Abstract: A multiple light source flat panel liquid crystal display (LCD) system having enhanced backlight brightness and specially selected light sources. According to the present invention, brightness in the LCD is enhanced by polarization recycling using a pre-polarizing film to pre-polarize light, and a special reflector for recycling light reflected by the pre-polarizing film. In one embodiment, the pre-polarizing film comprises a layer of DBEF brightness enhancement film, and the rear reflector is made of a PTFF material. In another embodiment, the rear reflector is covered with a film comprising barium sulfate. The multiple light sources are selected such that, at any color temperature within a predetermined range, the brightness of the LCD is not reduced below a given threshold minimum (e.g., 70 percent of the maximum brightness).

Abstract: A multiple light source flat panel liquid crystal display (LCD) system having enhanced backlight brightness and specially selected light sources. According to the present invention, brightness in the LCD is enhanced by polarization recycling using a pre-polarizing film to pre-polarize light, and a special reflector for recycling light reflected by the pre-polarizing film. In one embodiment, the pre-polarizing film comprises a layer of DBEF brightness enhancement film, and the rear reflector is made of a PTFF material. In another embodiment, the rear reflector is covered with a film comprising barium sulfate. The multiple light sources are selected such that, at any color temperature within a predetermined range, the brightness of the LCD is not reduced below a given threshold minimum (e.g., 70 percent of the maximum brightness).

Abstract: A method and apparatus are disclosed for producing an image made up of marks having varying sizes, densities and/or shapes on an imaging media. The image is generated in response to image data defining the image to be produced received by an input scanner or other input device. The image data is processed and then used to address at least one amplitude and/or pulse width modulation table to, in turn, generate amplitude and pulse width signals which controls a writing device. Marks are therefore written onto the media, such marks having varying sizes, densities and/or shapes for forming the completed image.

Abstract: A method and apparatus for creating a photomask corresponding to an image utilizes a planar disc having at least a portion of its surface formed from a photosensitive material. The disc is mounted for rotation. A laser beam source is supported at a spaced relationship with respect to the disc. One or more laser beams from the source are focused onto the disc. The laser source is moved radially with respect to the disc, whereby the laser beams scan the surface of the disc. The beams are modulated in accordance with information corresponding to the image to cause the image to be written onto the photosensitive material on the rotating disc by the laser beam.

Abstract: A laser-addressable liquid crystal cell includes first and second transparent substrate layers forming the outer surfaces for the cell. First and second electrode layers are each formed from a transparent electrically conductive material, with the first and second electrode layers adjacent the first and second substrate layers, respectively. A smectic liquid crystal layer is disposed between the electrode layers. A three layer structure is disposed between the liquid crystal layer and the second electrode layer for absorbing infrared radiation while permitting visible radiation to pass therethrough. This structure includes a layer of radiation absorbing material, a layer selectively reflective to infrared radiation and transparent to visible radiation, and a spacer layer of dielectric material disposed therebetween.

Abstract: A visual display device is featured which uses a new thermal addressing technique to provide a dark image upon a lighter background. The display is capable of being multiplexed to a large number of rows. The device comprises a cholesteric-smectic liquid crystal material mixed with a pleochroic dye of high order parameter. When the material experiences a transition from a higher to a lower, smectic thermal phase, two different textures or light states are developed; a transparent state and a light absorbing state. The transparent state is developed by applying a sensitizing voltage to certain portions of the medium. The pleochroic dye absorbs the light passing through the unsensitized portions of medium to provide the dark image. The row electrodes are made diffusely reflective so as to provide a double light pass through the medium to improve contrast.

Abstract: A reflector for use in liquid crystal displays is disclosed comprising a plate having a micro-lenticular surface over which are successive layers of reflective material, such as aluminum or silver and a light transparent material having a low index of refraction, i.e., an inex of refraction below that of SiO.sub.2, which is in optical contact with the reflective layer.The present invention also contemplates the method of fabricating such a reflective surface.

Abstract: A visual display device is featured which uses a new thermal addressing technique to provide a dark image upon a lighter background. The display is capable of being multiplexed to a large number of rows. The device comprises a cholesteric-smectic liquid crystal material mixed with a pleochroic dye of high order parameter. When the material experiences a transition from a higher to a lower, smectic thermal phase, two different textures or light states are developed; a transparent state and a light absorbing state. The transparent state is developed by applying a sensitizing voltage to certain portions of the medium. The pleochroic dye absorbs the light passing through the unsensitized portions of medium to provide the dark image. The row electrodes are made diffusely reflective so as to provide a double light pass through the medium to improve contrast.

Abstract: A display device in which a thin layer of a lyotropic nematic mesomorphic composition is utilized to diffuse light from a source toward an observer by applying a suitable voltage, for example, 20 volts for a one mil layer. One form of the device transmits light through the layer. A second form of the device uses light diffused and reflected to the observer.

Abstract: A display device in which a thin layer of a lyotropic nematic mesomorphic composition is utilized to diffuse light from a source toward an observer by applying a suitable voltage, for example, 20 volts for a 1 mil layer. One form of the device transmits light through the layer. A second form of the device uses light diffused and reflected to the observer.

Abstract: A display device in which a thin layer of a lyotropic nematic mesomorphic composition is utilized to diffuse light from a source toward an observer by applying a suitable voltage, for example, 20 volts for one mil layer. One form of the device transmits light through the layer. A second form of the device uses light diffused and reflected to the observer.