Abstract: An optical element includes a multicore optical fiber, the multicore optical fiber including an inner core and at least one peripheral core arranged around the inner core and having an effective refractive index different from that of the inner core, and an optical fiber grating formed at the multicore optical fiber to cause an optical signal to be coupled between different cores among the inner core and the at least one peripheral core. The optical element allows a signal of a specific wavelength to be dropped added from an optical signal. Since the optical element may be fabricated easily, designed in a small size and mass-produced reproducibly at low costs, the optical element may be advantageously utilized for an optical communication network such as a wavelength division multiplexing network, an ultra-high speed optical communication system, an optical sensor system or the like.

Abstract: An optical element includes a multicore optical fiber, the multicore optical fiber including an inner core and at least one peripheral core arranged around the inner core and having an effective refractive index different from that of the inner core, and an optical fiber grating formed at the multicore optical fiber to cause an optical signal to be coupled between different cores among the inner core and the at least one peripheral core. The optical element allows a signal of a specific wavelength to be dropped added from an optical signal. Since the optical element may be fabricated easily, designed in a small size and mass-produced reproducibly at low costs, the optical element may be advantageously utilized for an optical communication network such as a wavelength division multiplexing network, an ultra-high speed optical communication system, an optical sensor system or the like.

Abstract: An optical biosensor using a surface plasmon resonance phenomenon includes an input optical waveguide including a first optical mode converting unit for converting a core mode to a cladding mode; and an optical sensing unit for allowing a specific wavelength among wavelengths constituting the converted cladding mode to be lost according to density of bio-material. The optical biosensor can accurately measure density of bio-material by using an optical signal.

Abstract: A display apparatus management system having at least one display apparatus with a display part to display an image, a memory to allow data to be stored and/or removes, and a display controller to control a display state of the image displayed on the display part; at least one client connected with each display apparatus and to output an image signal to the display apparatus; and a host having an input part to allow input of a display identification to each display apparatus, a database registered with the display identification of each display apparatus inputted via the input part and a client identification of each client, and a host controller to transfer the display identification to the display apparatus through the client to enable the display controller to store the display identification to the memory. The display apparatus management system, thus, identifies and/or manages the display apparatus connected with each client from the host.

Abstract: An optical biosensor using a surface plasmon resonance phenomenon includes an input optical waveguide including a first optical mode converting unit for converting a core mode to a cladding mode; and an optical sensing unit for allowing a specific wavelength among wavelengths constituting the converted cladding mode to be lost according to density of bio-material. The optical biosensor can accurately measure density of bio-material by using an optical signal.

Abstract: An apparatus and a method output different display identification data to a system depending on a connector type. The apparatus to output different display identification data depending on a connector type includes an analog display identification data storing and outputting unit; a digital display identification data storing and outputting unit; a connector type identification unit which identifies the connector type based upon the output of pins of a predetermined connector; and a display identification data output command unit which commands the analog display identification data storing and outputting unit or the digital display identification data storing and outputting unit to output the analog display identification data or the digital display identification data to the system based upon the identified connector type.

Abstract: Disclosed are an optical coupler type filter, and a wavelength stabilizing apparatus of a light source using the same.

Abstract: An LCD includes an LCD panel to display a picture, a backlight unit disposed in a rear of the LCD panel and having a light guide unit to guide light toward the LCD panel, and first and second lamp units respectively disposed at opposite edges of the light guide unit and each having two or more lamps to emit light toward the light guide unit, a first lamp driver to supply first AC power to drive at least one lamp of the first lamp unit and at least one lamp of the second lamp unit, a second lamp driver to supply second AC power to drive the other lamp of the first lamp unit and the other lamp of the second lamp unit, and a controller to switch on/off supply of the first AC power.

Abstract: Disclosed are an optical coupler type filter, and a wavelength stabilizing apparatus of a light source using the same.

Abstract: A display apparatus management system having at least one display apparatus with a display part to display an image, a memory to allow data to be stored and/or removes, and a display controller to control a display state of the image displayed on the display part; at least one client connected with each display apparatus and to output an image signal to the display apparatus; and a host having an input part to allow input of a display identification to each display apparatus, a database registered with the display identification of each display apparatus inputted via the input part and a client identification of each client, and a host controller to transfer the display identification to the display apparatus through the client to enable the display controller to store the display identification to the memory. The display apparatus management system, thus, identifies and/or manages the display apparatus connected with each client from the host.

Abstract: A method to provide a convenient user interface to change a display setting of a picture area of a display apparatus, which is communicated with an external device, the method including: displaying a main window including a step start button to initiate a sequence of at least first and second display setting adjustment windows in which first and second display setting adjustments are made; displaying sequentially the display setting adjustment windows corresponding to a selection of the step start button; adjusting the display setting through the displayed display setting adjustment windows; issuing a command from the external device in correspondence to adjusting the displayed display setting adjustment windows; and setting the display setting in correspondence to the command. With this configuration, the present invention provides a convenient user interface to adjust a plurality of display settings of a picture area.

Abstract: An apparatus and a method output different display identification data to a system depending on a connector type. The apparatus to output different display identification data depending on a connector type includes an analog display identification data storing and outputting unit; a digital display identification data storing and outputting unit; a connector type identification unit which identifies the connector type based upon the output of pins of a predetermined connector; and a display identification data output command unit which commands the analog display identification data storing and outputting unit or the digital display identification data storing and outputting unit to output the analog display identification data or the digital display identification data to the system based upon the identified connector type.

Abstract: An interferometric temperature sensing system provides a simplified design for accurately processing an interference fringe pattern using self coupling effects of a laser detection element, where a laser diode and an optical detection element are combined in one package. Accordingly, the present invention is easily made and the measurement of temperatures within a wide range can be easily performed.