Abstract: An in-fiber mode converter comprises fiber portions (10) constituting an input microlens, a fiber portion (20) constituting a phase shifting region adapted to convert a propagation mode of an optical signal into another propagation mode, and fiber portions (30) constituting an output microlens. The fiber portions are spliced, the converter is compact and losses are minimized relative to mode conversion in free space.

Abstract: A positioning apparatus and a printer using the same are provided. The positioning apparatus includes a slide rod, a carrying base, and a light detecting module. The slide rod has a plurality of positioning grooves on one side surface thereof, and the carrying base is slidingly disposed on the slide rod. The light detecting module is integrated with the carrying base and corresponds to the side surface of the slide rod having the positioning grooves. The light detecting module determines a relative position of the light detecting module with respect to the slide rod according to the intensity change of a reflection light reflected by the slide rod.

Abstract: In a CWDM optical transmission system of the present invention, in place of an optical signal of at least one wave among a plurality of optical signals corresponding to a CWDM system, a DWDM light output from an additional light transmission unit of a DWDM system is given to a multiplexer via a variable optical attenuator, and multiplexed with the optical signals corresponding to CWDM, to be sent out to a transmission path. At this time, the total power of the DWDM light sent out to the transmission path, is attenuated by the variable optical attenuator, so as to be approximately equal to the power per one wavelength of the CWDM light. On an optical reception terminal, the light propagated through the transmission path is demultiplexed by a demultiplexer, and the DWDM light corresponding to the additional wavelengths is amplified by an optical amplifier and thereafter, received by an additional light reception unit.

Abstract: An optical module has a substrate having a substrate surface provided with terminal pads and landing pads, and an optical element package having terminals and mounted on the substrate surface with a gap formed therebetween. The gap between the optical element package and the substrate surface is determined by the landing pads when the optical element package is mounted on the substrate surface. The terminal pads and the landing pads are exposed in a state where the optical element package is mounted on the substrate surface, and the terminal pads are electrically connected to corresponding terminals by solder.

Abstract: In one aspect, a planar illumination area includes two light-guide elements, each with an out-coupling region. At least a portion of each out-coupling region overlaps with at least a portion of the other. The overlapping region emits a substantially uniform light output power.

Abstract: The invention relates to an access network for exchanging communication signals between a transit network and at least one communication medium of a user. The communication medium is operatively connected to an exchange by means of an optical fiber connection for exchanging the communication signals, and the exchange is connected to the transit network. The fiber connection comprises at least one multimode fiber, which is bent over at least one first part of its length, in such a manner that the fiber comprises at least one complete winding in the first part thereof mainly for maintaining one or more modes of the communication signals into the fiber. Said modes have been selected from a group comprising the ground mode and one or more lower modes near the ground mode.

Abstract: Disclosed herein is a liquid crystal display device which can control a viewing angle in up/down and left/right directions without need of forming white subpixels. In the liquid crystal display device which includes a first region having liquid crystal molecules aligned in a slanted direction, and a second region having the liquid crystal molecules aligned in up and down directions or in left and right directions. Voltage is independently applied to the second region from the first region.

Abstract: A receiving container includes first to third sidewalls, first and second buffer recesses and a supporting portion. The first sidewall faces shorter first sides of the lower and upper substrates. The second and third sidewalls are connected to end portions of the first sidewall and face each other. The first buffer recesses are disposed in the first and second sidewalls at a region where the first and second sidewalls meet each other, and in the first and third sidewalls where the first and third sidewalls meet each other. The supporting portion is extended from inner surfaces of the first, second and third sidewalls and supports edge portions of the lower substrate. The second buffer recesses are disposed in the supporting portion and at a region of the supporting portion, which corresponds to corners of the lower substrate.

Abstract: A separation type chassis for a flat panel display includes at least two chassis members, and a plurality of fastening members for coupling the chassis members, and coupling holes having a predetermined shape are formed at both ends of each of the chassis members. Each of the fastening members is coupled with the coupling holes.

Abstract: A printed circuit board with a printed pattern of fiducial marks on a first side of the printed circuit board including a first indicia including a right triangle with its base parallel to a first edge of the board and an alignment mark adjacent thereto, and a second indicia including a right triangle with its base parallel to a second edge of the board opposite said first edge, and an alignment mark adjacent thereto.

Abstract: An LCD panel including a first substrate, a second substrate, a black matrix, a liquid crystal (LC) layer, first photo spacers and second photo spacers is provided. The first and the second substrates are substantially parallel. The LC layer is disposed between the first and the second substrates. The black matrix disposed on the first substrate surrounds display regions and defines a non-display region. The first photo spacers contact the second substrate and are disposed on the black matrix. The second photo spacers are disposed on the black matrix. Channels are formed between the second photo spacers, such that LC molecules of the LC layer flow between the display regions through the channels. The width of the channels between any two of the adjacent second photo spacers substantially ranges from 2˜10 ?m. The dimension of the first photo spacers is substantially greater than that of the second photo spacers.

Abstract: A thin film transistor (TFT) array panel includes: a substrate; gate lines including gate electrodes and storage electrode lines including storage electrodes, the gate lines and the storage electrode lines being formed on the substrate; a gate insulating layer formed on the substrate; a semiconductor layer formed on the gate insulating layer; data lines and drain electrodes formed on the gate insulating layer and the semiconductor layer; storage conductors formed together with the data lines on the gate insulating layer and connected with the drain electrodes; a passivation layer formed on the data lines, the drain electrodes, and the storage conductors; and pixel electrodes formed on the passivation layer, connected with the drain electrodes, and having a plurality of cutout portions, wherein each storage electrode and each storage conductor has slant portions that overlap with the cutout portions and overlap with each other with the gate insulating layer interposed therebetween.

Abstract: A thin-profile, optically efficient lighting device for use with, among other things, flat information displays, includes a combination of three optically coupled light propagating structures, fabricated of electromagnetic flux transmitting materials. The first structure may be a generally elongated optical pipe adapted to receive light from at least one light source such as a light emitting diode. Radiation from additional sources is coupled into the first structure by a second structure which injects the radiation thereinto. Light injected into the first structure is directed into the third structure where it is redirected so that it propagates out of the third structure uniformly and efficiently and in a direction that is substantially perpendicular to the surface of the third structure. A device can include multiple bodies of any or all three structures.

Abstract: The invention provides a liquid crystal device that includes: a first substrate; a second substrate that is provided over the first substrate in such a manner that the first substrate and the second substrate face each other; a transparent pixel electrode that is provided in each of a plurality of pixels that constitute a display area over the first substrate; a transparent common electrode that is formed over the first substrate; a liquid crystal layer that is sandwiched between the first substrate and the second substrate, the liquid crystal layer containing liquid crystal molecules that are driven by a horizontal electric field that is generated in accordance with a difference between the electric potential of the pixel electrode and the electric potential of the common electrode; and a light-sensitive pickup element that is formed in the display area over the first substrate, the light-sensitive pickup element having an upper electrode that is formed in the same layer as that of either the pixel electrode

Abstract: Bead spacers, which are disposed on at least one principal surface of a pair of substrates forming a liquid crystal display device, are bonded to the principal surface by an alignment film or an organic material film. Specifically, the bead spacers disposed on the principal surface are covered with the alignment film, or the bead spacers are bonded by the organic material film to the alignment film formed on the principal surface of the substrate.

Abstract: A common electrode substrate for use in a liquid crystal display (LCD) device includes a substrate body, a common electrode disposed on the substrate body, and a peripheral first circuit disposed on the substrate body. The peripheral first circuit and the common electrode are electrically separate from each other, and the peripheral first circuit extends along at least a portion of a peripheral region of the substrate body.

Abstract: An optical fiber interconnect system wherein the adapter employs a push-push interconnect mechanism wherein the adapter employs a spring loaded slider that moves in a single plane in response to a first pushing force to engage the connector with the adapter and a second pushing force to disengage the connector from the adapter so that the connector can be withdrawn from the adapter. The adapter includes an automatic shutter that is opened upon contact by the inserted connector housing with a cam on the lower portion of the shutter, but avoids contact with the ferrule polished end face. Angled latches are provided on the modular contact so as to enable disengagement and removal of the contact from the remainder of the connector assembly from the front thereof.

Abstract: Provided are a TFT LCD array substrate and manufacturing method thereof. The TFT LCD array substrate comprises a substrate, a gate line and a data line formed on the substrate and crossing each other so as to define a pixel area, a pixel electrode formed in the pixel area, a TFT formed in the pixel area, a common electrode formed on the substrate and extending parallel to the data line. The common electrode is not formed in the central portion of a pixel area, thus improving the aperture ratio.

Abstract: An optical fiber, and an optical access network, a local area network and optical parts for communication, which uses the optical fiber, are disclosed. The optical fiber whose core diameter is 10 ?m˜40 ?m has at least two propagation modes in a wavelength over 1200 nm. The optical fiber according to the present invention can reduce packaging costs for optical components, since cross-sectional area of the core is large, compared with the prior art technique adopting a single mode optical fiber, and can transmit ultra-high speed data a relatively long distance, since the mode number and modal dispersion effect of the optical fiber is relatively small, compared with the prior art multimode optical fiber. Also, when using the optical fiber according to the present invention, the optical subscriber network and the local area network can be cost-effectively implemented.

Abstract: A method for fabricating a liquid crystal display (LCD) device includes providing a first substrate including a pixel portion and a circuit portion, the circuit portion having first and second regions; forming an active pattern and a first gate insulation film at the pixel portion and the circuit portion and forming a storage electrode on a portion of the active pattern of the pixel portion; forming a second gate insulation film on the first substrate; forming a gate electrode at the first region and forming p+ source and drain regions at portions of the active pattern of the first region; forming a gate electrode at the pixel portion and the second region, and forming a common line at the pixel portion; forming n+ source and drain regions at the pixel portion and at a portion of the active pattern of the second region; and joining the first and second substrates.