摘要:
The optical fiber-based communication system comprises a distribution optical fiber that extends proximately to a plurality of end users, and tap-off modules coupled to the distribution optical fiber at intervals along its length. Each of the tap-off modules includes a port in optical communication with the distribution optical fiber. The optical fiber-based communication system additionally comprises a branch optical fiber connected to the port of each of at least some of the tap-off modules and that extends to a corresponding one of the end users.
摘要:
An optoelectronic system for measuring fluorescence or luminescence emission decay, including (a) a light source being a light emitting diode, a semiconductor laser or a flash tube; (b) a first integrated circuit comprising at least one circuit causing the light source to emit light pulses towards a sample which causes a fluorescence or luminescence emission from the sample; (c) a photodiode detecting the emission; (d) a second integrated circuit comprising a detection analysis system determining information about the sample by analyzing decay of the detected emission; and (e) an enclosure enclosing the light source, the first integrated circuit, the second integrated circuit and the photodiode.
摘要:
The network comprises topographic network devices and communication links interconnecting the topographic network devices. The topographic network devices each have a physical location represented by a topographic coordinate set, and a network address that includes the topographic coordinate set. A message configured for transmission through the network includes a destination coordinate set, which is the topographic coordinate set of a destination network device that is one of the topographic network devices. A topographic network device comprises channels, a coordinate store and a topographic processor. The channels are each configured for connection via a communication link to another of the topographic network devices. The channels include a first channel via which the message is received. The coordinate store stores connected device coordinate sets, which are the topographic coordinate sets of the topographic network devices to which the channels are directly connected. The topographic processor operates in response to the connected device coordinate sets and the destination coordinate set of the message to identify a second channel of the topographic network device to which to forward the message.
摘要:
A network for communicating a message is established by providing a network that includes topographic network devices and communication links interconnecting the topographic network devices. The topographic network devices each have a physical location represented by a topographic coordinate set. A network address is assigned to each of the topographic network devices. The network address includes the topographic coordinate set of the topographic network device. The topographic coordinate set of the topographic network device is transmitted to those of the topographic network devices directly connected to the topographic network device. The topographic coordinate set of the topographic network device is received and stored at at least one of the topographic network devices directly connected to the topographic network device.
摘要:
A multiple analyte detection system includes a carrier having reagents disposed thereat, with each of the reagents capable of optically changing in response to exposure to a respective analyte. The system further includes a photodetector positioned to collectively detect light interacted with each of the reagents, a processor to determine a presence or an absence of each of the analytes in response to the light collectively-detected, and an indicator to provide an indication of the presence or the absence of each of the analytes. A method of detecting multiple analytes includes exposing reagents capable of optically changing in response to exposure to a respective analyte to a sample. The method further includes collectively detecting light interacted with each of the reagents, determining a presence or an absence of each of the analytes in response to the light collectively detected, and indicating the presence or the absence of each of the analytes determined.
摘要:
A lighting assembly includes a light guide having a first major surface, a second major surface opposite the first major surface, a light input edge, and an end edge distal the light input edge. Light input to the light guide through the light input edge propagates by total internal reflection toward the end edge. The lighting assembly further includes light extracting elements at least one of the major surfaces of the light guide, the light extracting elements configured to extract light through the first major surface in a direction away from the light input edge and away from the first major surface, and a banding reduction element at the end edge configured to redirect light incident thereon in a direction away from the light input edge.
摘要:
A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection and a light input edge. The light assembly also includes a light engine. The light engine has a heat conductive armature having a receptacle for a portion of the light guide that includes the light input edge and a light source retained by and thermally coupled to the armature. The armature functions as a heat sink for dissipating heat generated by the light source. The light guide is mechanically retained in the receptacle, and the light guide and the armature cooperate to align the light input edge with the light source for inputting light from the light source into the light guide through the light input edge.
摘要:
A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection and a light input edge. The light assembly also includes a light engine. The light engine has a heat conductive armature having a receptacle for a portion of the light guide that includes the light input edge and a light source retained by and thermally coupled to the armature. The armature functions as a heat sink for dissipating heat generated by the light source. The light guide is mechanically retained in the receptacle, and the light guide and the armature cooperate to align the light input edge with the light source for inputting light from the light source into the light guide through the light input edge.
摘要:
A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection, a light input edge, and two light output regions of different optical characteristics and at least one of which is associated with a corresponding one of the major surfaces. The lighting assembly also includes a light source located adjacent the light input edge. The light source and the light guide variably positionable relative to one another to vary a location on the light input edge at which the light is input to the light guide such that the light is emitted from the light guide selectively apportioned between the light output regions so that a characteristic of the light output from the lighting assembly is modified based on the optical characteristics associated with the light output regions and the relative positioning of the light source and the light guide.
摘要:
A lighting assembly includes a light guide to propagate light by total internal reflection and having a light output region on a major surface thereof. The lighting assembly also includes an optical adjuster having a major surface juxtaposed with and conforming to the light guide's major surface. The optical adjuster has a first region and a second region, the first region having a light modifying characteristic. The optical adjuster and light output region are variably positionable relative to one another to selectively apportion light emitted from the light output region between the first region and the second region. In this way, light apportioned to the first region is modified by the light modifying characteristic so that light output from the lighting assembly is modified based on relative positioning of the optical adjuster and the light guide.