Abstract:
Various embodiments disclosed herein comprise a photovoltaic device of improved efficiency. The photovoltaic device comprises a photovoltaic material, a reflective conductor, a total-internal-reflection surface and a microstructure. The microstructure reflects light so that some of the reflected light is incident upon the total-internal-reflection surface at an angle greater than the critical angle. In some embodiments, the photovoltaic device has a photovoltaic material, a reflective conductor, and a surface forward the conductor configured to redirect light rays directed toward the conductor such that redirected light is instead incident on the photovoltaic material. Various embodiments include a method of manufacturing a photovoltaic device of improved efficiency. Other embodiments are also described.
Abstract:
In one embodiment, the invention provides a method for fabricating a microelectromechanical systems device. The method comprises fabricating a first layer comprising a film having a characteristic electromechanical response, and a characteristic optical response, wherein the characteristic optical response is desirable and the characteristic electromechanical response is undesirable; and modifying the characteristic electromechanical response of the first layer by at least reducing charge build up thereon during activation of the microelectromechanical systems device.
Abstract:
An interferometric mask covering a reflective conductive ribbon that electrically interconnects a plurality of photovoltaic cells is disclosed. Such an interferometric mask may reduce reflections of incident light from the conductors. In various embodiments, the mask reduces reflections, so that a front and back electrode pattern appears black or similar in color to surrounding features of the device. In other embodiments, the mask may modulate reflections of light such that the electrode pattern matches a color in the visible spectrum.
Abstract:
A system and method for an optical component that masks non-active portions of a display and provides an electrical path for one or more display circuits. In one embodiment an optical device includes a substrate, a plurality of optical elements on the substrate, each optical element having an optical characteristic which changes in response to a voltage applied to the optical element, and a light-absorbing, electrically-conductive optical mask disposed on the substrate and offset from the plurality of optical elements, the optical mask electrically coupled to one or more of the optical elements to provide electrical paths for applying voltages to the optical elements. In another embodiment, a method of providing an electrical signal to optical elements of a display comprises electrically coupling an electrically-conductive light-absorbing mask to one or more optical elements, and applying a voltage to the mask to activate the one or more optical elements.
Abstract:
A package structure and method of packaging for an interferometric modulator. A thin film material is deposited over an interferometric modulator and transparent substrate to encapsulate the interferometric modulator. A gap or cavity between the interferometric modulator and the thin film provides a space in which mechanical parts of the interferometric modulator may move. The gap is created by removal of a sacrificial layer that is deposited over the interferometric modulator.
Abstract:
A method and apparatus includes providing an element formed of a superplastic material to perform a predetermined downhole task. In another arrangement, a method and apparatus includes a flowable element and a deformable element that can be expanded by flowing the flowable element.
Abstract:
Various systems and methods of lighting a display are disclosed. In one embodiment, for example, a method includes applying a voltage waveform to the interferometric modulators, applying a voltage pulse to the interferometric modulators, detecting reflectivity of light from the interferometric modulators, and determining one or more quality parameters of the interferometric modulators based on the detecting reflectivity of light, where the applied voltage pulse causes the interferometric modulators to vary between an actuated and a non-actuated state, or an non-actuated state and an actuated state.
Abstract:
One embodiment provides a method of testing humidity, comprising: i) determining a property of a device which encloses a plurality of interferometric modulators and ii) determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined property, wherein the determined property comprises at least one of i) the thickness and width of a seal of the device and ii) adhesive permeability of a component of the device. In one embodiment, the determined property further comprises at least one of the following: i) temperature-humidity combination inside the device, ii) a desiccant capacity inside the device and iii) a device size.
Abstract:
The width and location of a hysteresis window of an interferometric modulator may be altered by adjusting various physical characteristics of the interferometric modulator. Thus, depending on the particular application for which the interferometric modulators are manufactured, the width and location of the hysteresis window may be altered. For example, in some applications, reducing the power required to operate an array of interferometric modulators may be an important consideration. In other applications, the speed of the interferometric modulators may be of more importance, where the speed of an interferometric modulator, as used herein, refers to the speed of actuating and relaxing the moveable mirror. In other applications, the cost and ease of manufacturing may be of most importance. Systems and methods are introduced that allow selection of a width and location of a hysteresis window by adjusting various physical characteristics.
Abstract:
A frame for positioning and labeling an appendage relative to an x-ray cassette during x-radiography. In one embodiment, the frame includes an x-ray transparent plate having a first surface and a second surface; and a protrusion positioned on the first surface. The protrusion aids in the positioning of the appendage and preventing the first surface of the plate from being in contact with the x-ray cassette. In still yet another embodiment, the plate includes indicia for positioning the appendage. Another aspect of the invention is a method for positioning an appendage on x-ray cassette including the steps of: providing a frame having an x-ray transparent plate having a first surface and a second surface; and a protrusion positioned on the first surface; placing the plate on the x-ray cassette such that the second surface is in contact with the x-ray cassette; and placing the appendage on the plate.