摘要:
Integrated optoelectronic devices include a substrate having an opening therein that extends at least partially therethrough and a ledge extending inwardly from a sidewall of the opening. A pop-up mirror is provided in the opening. The mirror has an underside edge that is supported by an upward facing portion of the ledge when the mirror is in a closed position. A hinge is also provided. The hinge mechanically couples the mirror to the substrate so that the mirror can be rotated from the closed position to an open position.
摘要:
A microelectromechanical structure capable of switching optical signals from an input fiber to one of two or more output fibers. In one embodiment, the MEMS optical cross-connect switch comprises a first microelectronic substrate having a pop-up mirror disposed on the surface of the substrate and a rotational magnetic field source, such as a variably controlled magnetic field source. The rotational magnetic field source allows for reliable actuation of the pop-up mirror from a non-reflective state to a reflective state. Additionally the invention is embodied in a MEMS optical cross-connect switch having a first microelectronic substrate having a pop-up mirror disposed on the surface of the substrate and a positioning structure disposed in a fixed positional relationship relative to the first substrate. The positioning structure may comprise a positioning structure extending from a second microelectronic substrate that is in a fixed positional relationship relative to the first microelectronic substrate. The positioning structure serves to restrict further movement of the pop-up mirror when the pop-up mirror has been actuated into a reflective state.
摘要:
A fiber optic connector is provided that is capable of precisely aligning an optical fiber with another optical element by using a MEMS positioning apparatus subsystem capable of being manufactured in an affordable, repeatable and reliable manner which can precisely microposition an optical fiber relative to another optical element in each of the X, Y and Z directions.
摘要:
A method and system for efficiently analyzing databases. In one embodiment, the invention is used to analyze data represented in the form of attribute-value (a-v) pairs. A primary step in building the ontology is to identify parent, child and related a-v pairs of each given a-v pair in the database. A parent is an a-v pair that is always present whenever a given a-v pair is present. A child is an a-v pair that is never present unless the given a-v pair is present. Related pairs of a given a-v pair are those a-v pairs present some of the time when a given a-v pair is present. The system calculates relationships between a-v pairs to produce tables of a-v pairs presented according to the relationships. The user performs additional analysis by investigating the a-v pair relationships through a graphical user interface. Additional visualizations of the data are possible such as through Venn diagrams and animations. Plain-text data documents collected, for example, from the Internet can be analyzed. In this case, the system pre-processes the text data to build a-v pairs based on sentence syntax.
摘要:
Microelectromechanical actuators include at least one arched beam which extends between spaced apart supports on a microelectronic substrate. The arched beams are arched in a predetermined direction and expand upon application of heat thereto. A coupler mechanically couples the plurality of arched beams between the spaced apart supports. Heat is applied to at least one of the arched beams to cause further arching as a result of thermal expansion thereof, and thereby cause displacement of the coupler along the predetermined direction. Internal heating of the arched beams by passing current through the arched beams may be used. External heating sources may also be used. The coupler may be attached to a capacitor plate to provide capacitive sensors such as flow sensors. The coupler may also be attached to a valve plate to provide microvalves. Compensating arched beams may be used to provide ambient temperature insensitivity.
摘要:
Microstructures are fabricated by impinging a radiation beam, such as a laser beam, through a substrate that is transparent to the laser beam, into a negative photoresist layer on the substrate. The negative photoresist layer may be subsequently developed to provide a master for optical and/or mechanical microstructures. Related systems, microstructure products and microstructure masters also are disclosed.
摘要:
A light management film can be provided by an optically transparent substrate and an array of microlenses that is formed in a first side of the optically transparent substrate. An optically reflective layer is provided on a second side of the substrate that is opposite the first side, where the optically reflective layer includes apertures therein that are self-aligned to the microlenses.
摘要:
An LCD can include a Compact Collimating Reflector (CCR), is configured to be located downstream in a light path from an LCD light source, where the CCR is configured to reflect light from the LCD light source to provide collimated light downstream from the CCR. A light diffusion film is located downstream from the CCR and is configured to receive the collimated light from the CCR. An LCD panel is located downstream from the CCR.
摘要:
Microstructures are fabricated by imaging a microstructure master blank that includes a radiation sensitive layer sandwiched between a pair of outer layers, on an imaging platform, to define the microstructures in the radiation sensitive layer. At least one of the outer layers is then removed. The microstructures that were defined in the radiation sensitive layer are developed. The radiation sensitive layer sandwiched between the pair of outer layers may be fabricated as webs, to provide microstructure master blanks.
摘要:
Microlens sheets include a first array of anamorphic micolenses on a face of a substrate. The microlenses in the first array are defined by a first parametric model along a direction of the first array. A second array of anamorphic micolenses is also provided on the face of the substrate, and interspersed with the first array. The microlenses in the second array are defined by a second parametric model that is different from the first parametric model, along the direction of the first array.