摘要:
Herein provided are polyelectrolyte membranes that block dendrite growth in rechargeable batteries, possess low inherent electrical resistance to be used as separators, possess high ionic conductivities, and block fuel crossover in direct fuel feeding fuel cells. Further provided are cost-effective processes for forming polyelectrolyte membranes. The herein described polyelectrolyte membranes are useful in electrochemical cells such as primary batteries, secondary batteries such as Ag—Zn, Ni—Zn, Ni-MH, Li polymer, and Li-ion; fuel cells including but not limited to metal air battery or fuel cells, proton exchange membrane hydrogen fuel cells, direct liquid feed fuel cell.
摘要:
The present invention relates to a composition of matter based on lamellar materials, and method of deriving one or more predetermined number of layers of material from a bulk lamellar material. In one aspect of the present invention, a material comprising a predetermined number of one or more layers is provided. The one or more layers are layers of a lamellar material that are weakly bonded to each other. In further aspects of the present invention, methods are provided for forming a predetermined number of layers of a lamellar material.
摘要:
A method for fabricating multi layer microelectromechanical and microfluidic devices is disclosed. Multi layer microelectromechanical and microfluidic devices are fabricated on a substrate with layers of predetermined weak and strong bond regions where deconstucted layers of devices at or on the weak bond regions. The layers are then peeled and subsequently bonded to produce a multi layer microelectromechanical and microfluidic devices. An arbitrary number of layers can be bonded and stacked to create either microelectromechanical or microfluidic device or a hyrbid type of device. Also disclosed are methods of creating edge interconnects and vias through the substrate to form interconnections between layers and devices thereon.
摘要:
Practical applications of a class of nematic elastomer which has light avoidance characteristics are disclosed. Such practical applications include a switching device, a load carrying device and programmable mask. The use of different light sources, including the use of an autonomous device are further disclosed.
摘要:
Electro-optical glazing structures (1) having total-scattering and total-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications.
摘要:
An apparatus is provided for automatically reducing glare produced from a spatial scene by reducing the intensity of light rays propagating from points in the three-dimensional spatial scene towards an optical element having a field of view. Further, an apparatus is provided that automatically reduces interfering illumination produced from an illumination source by reducing the intensity of light rays propagating from the illumination source towards a sensor having a field of view of radio communication. Both apparatus include an electro-optical element having an optically transparent surface including a plurality of pixels through which the field of view of the optical element or the sensor passes. Each pixel has a controllable light transmittance for selectively reducing the intensity of incident light rays propagating from one or more points from the illumination source, through the pixel, then towards the sensor or optical element. An image acquisition device is included for acquiring one or more images of the illumination source within the field of view of the sensor or optical element. A processor is also included for processing the acquired images and determining at which pixels the light transmittance is to be actively controlled in order to reduce the intensity of incident light rays before reaching the sensor or optical element. A control is also provided for actively controlling the light transmittance of the determined pixels so that after incident light rays propagate through the determined pixels, the incident light rays propagate towards the sensor or optical element with reduced intensity.
摘要:
A reconfigurable backlighting construction for use in portable computer-based systems having direct and projection viewing modes of operation. In the illustrative embodiments of the present invention, the backlighting construction is integrated with a LCD display panel, a micropolarization panel, and a touch-screen writing panel to provide several different types of portable computer-based systems including, for example, a portable notebook computer, a computer-driven image display device, and a portable pen-computing device. In general, each of these computer-based systems are capable of selectively displaying color video images on an actively driven display surface, or projecting such video images onto a wall surface or projection screen without the need for a bulky overhead projector, required by all prior art systems. These computer-based systems can be easily reconfigured for projection viewing without physical removal of the light guiding panel and its light diffusing structures. If desired, these computer-based systems can be used to directly view “spatially-multiplexed” images of 3-D objects or imagery during the direct viewing mode, and when desired these spatially-multiplexed images can be projected onto a wall surface or projection screen during the projection viewing mode. When the spatially-multiplexed images are viewed through electrically-passive polarized glasses, the 3-D object is perceived with stereoscopic depth sensation in either mode of viewing. A portable light projection accessory device is provided for use with the portable computer-based systems of the present invention. In the illustrative embodiments, the portable light projection device has first and second housing portions that are interconnected by a foldable structure that permits the first and second housing portions to be selectively reconfigured for simple trouble-free use during the projection viewing mode of operation, and for compact storage during the direct viewing mode of operation.
摘要:
A computer-based system for producing a multi-color multilayer image on a substrate using multi-colored cholesteric liquid crystal (CLC) pigment materials made from CLC flakes tuned to predetermined bands of color. A computer-controlled image generator automatically generates an image specifying a pattern over which binder material is to be applied to a substrate by a binder material applicator. A plurality of CLC pigment applicators automatically apply patterns of different-color CLC pigment material to a pattern of binder material applied to the substrate, binding thereto as the binder material dries. An output device is used to automatically return the substrate to a different one of CLC pigment applicators after each application of a pattern of different-color CLC pigment material to the pattern of binder material. The output device automatically repeats the return of the substrate to the CLC pigment applicators until all bands of color in the multi-color multilayer image are rendered and the multi-color multilayer image is produced.
摘要:
A method of fabricating a multichannel plate is provided. The method includes providing a N layers, each layer having an array of wells formed therein. The N layers are aligned and stacked. The stack of N layers are sliced along a first and second line of the array of wells. The first line of the array of wells provides a first surface corresponding to a first array of channel openings of the MCP, and the second line of said array of wells provides a second surface corresponding to a second array of channel openings of the MCP. This method provides several functional benefits compared to conventional methods. These include, but are not limited to: the ability to produce well known and well characterized channels; the ability to produce well known and well characterized periods between channels; the ability to produce channels having any desired secondary electron emission enabling material therein; the ability to fabricate the substrate and/or final MCP of silicon.
摘要:
A lithography device includes one or more conductive strips monolithically embedded within an insulative structure. A method of manufacturing a lithography device includes monolithically forming a conductive strip through an insulative structure. Monolithically forming such a device includes forming the conductive strip on an mixed conductive-insulative layer, and embedding the conductive-insulative layer layer within the insulative structure. Such a device may readily be manufactured, is reliable, and is capable of various lithography applications and other applications requiring sub-micron and nano-scale electrode devices and electrode arrays.