Abstract: A lens holder apparatus of a camera lens module is provided and includes a printed circuit board, an image sensor provided on a printed circuit board, a plurality of lenses, and a spacer The lenses are assembled within the lens holder allow focal lengths between the sensor and respective lenses to be adjusted freely, and a stopper is detachably provided at a lower portion of the space of the lens holder, such that the stopper can be separated from the lower portion and then recombined therewith after the readjustment of the focal length.

Abstract: A burner used for fabricating an optical fiber perform is disclosed. The burner includes a burner housing, a first body formed with a plurality of spraying ports, and a second body aligned in a length direction of the first body. At least a part of the first body is accommodated in the burner housing. At least a part of the second body is accommodated in the burner housing. An oxidizing agent is fed into the second body along an outer peripheral surface of the second body and a fuel is fed into the second body along an inner peripheral surface of the first body. The oxidizing agent is uniformly mixed with the fuel in the first body and a mixture thereof is exhausted to an exterior through the spraying ports. The fuel and the oxidizing agent are separately fed into the burner and mixed with each other in the burner, thereby preventing the backfire phenomenon.

Abstract: A spool for winding an optical fiber includes flanges attached to each other using an ultrasonic fusion splicer. The spool has first and second cylindrical barrels, on which the optical fiber is wound. The flanges have a disk shape and protrude radially from the first and second cylindrical barrels so as to restrict the winding area of the optical fiber. Ultrasonic fusion splicing points form along a junction by engaging the first and second cylindrical barrels in an axial direction so as to face each other, locating a head of an ultrasonic fusion splicer on the junction and generating an ultrasonic wave from the head to the junction so as to fusion splice the first and second flanges together.

Abstract: A deposition burner for an optical fiber preform includes: a first body including a plurality of injection tubes for fusing and emitting raw materials; a second body assembled with the first body in a shape to envelope the outer surface of the first body; a moving member disposed in a vertical orientation between the inner surface of the second body and the outer surface of the first body for moving in a longitudinal direction; and a switch type injection tube opened and closed along the rim of the one end of the first body in response to a movement of the moving member in the longitudinal direction.

Abstract: A method for heating a porous preform according to the present invention comprises the steps of accommodating the porous preform in a muffle tube, forming a high temperature zone on a portion of a moving path of the muffle tube, using a heater and moving the muffle tube along the moving path to pass through the high temperature zone.

Abstract: An automatic pressure control device for detecting and automatically controlling a gas pressure within a quartz tube in an optical fiber preform fabricating apparatus by regulating the flow rate of gas fed into the quartz tube in accordance with a preset pressure value is disclosed. The automatic pressure control device includes: a main flow controller coupled to a soot box to feed the gas into the quartz tube in accordance with the preset pressure value; a sub flow controller coupled to the soot box to feed the gas into the quartz tube to maintain the preset pressure value when there is a pressure change within the soot box; and a gas pressure controller having a pressure sensor inserted into the soot box to compare a pressure value of a signal detected in real time by the pressure sensor with the preset pressure value and to control the flow rate of the gas to maintain a constant level of gas pressure within the soot box.

Abstract: Disclosed is a terminal adapter device to enable an IEEE1394-to-Ethernet conversion for processing by hardware data of an Ethernet standard that is inputted/outputted in a home network system based on an IEEE 1394. The terminal adapter device includes a 1394 unit to perform an IEEE 1394 connection with a home gateway unit, connected to a network such as a Wide Area Network (WAN), to process data of the network system, and with an external IEEE 1394 client, an Ethernet unit to perform an Ethernet connection with an external Ethernet client, an Ethernet/1394 conversion unit, connected to the 1394 unit and the Ethernet unit, to perform a protocol conversion, and a control unit to control the protocol conversion.

Abstract: This invention relates to an alignment apparatus for aligning a planar optical wave-guide element and an optical fiber block wherein alignment can be completed with more precision and less expense than conventional methods. The alignment apparatus comprising a lower plate; a sliding table mounted on the lower plate capable of horizontal displacement on the lower plate; an upper plate mounted to the sliding table; and, a jig disposed on the upper plate and fixed to rotational means and capable of rotation about the upper plate for holding the optical fiber block.

Abstract: Disclosed is a monitoring system and method of monitoring optical-fiber drawing systems. The scattering monitor includes: a scattering monitor housing provided on a path drawing an optical fiber and having holes aligned on the upper and lower ends of the scattering monitor housing with the optical fiber passing there-through; a reflecting plate surrounding the optical fiber in the scattering monitor housing; a light condenser for converging light reflected from the reflecting plate; and, a light detector for detecting converged light and generating a corresponding electrical signal.

Abstract: A lens holder apparatus of a camera lens module is provided and includes a printed circuit board, an image sensor provided on a printed circuit board, a plurality of lenses, and a spacer The lenses are assembled within the lens holder allow focal lengths between the sensor and respective lenses to be adjusted freely, and a stopper is detachably provided at a lower portion of the space of the lens holder, such that the stopper can be separated from the lower portion and then recombined therewith after the readjustment of the focal length.

Abstract: A method and an apparatus for manufacturing an optical fiber preform. The method manufactures the optical fiber preform by depositing soot created through a chemical reaction on an inside wall of a reaction tube. The created soot is charged with a first predetermined charge to adhere soot, which is not deposited on the inside wall of the tube, to an electrified body charged with a second predetermined charge opposite to the first predetermined charge. The electrified body is adapted for movement to transport the unused soot to an exterior of the reaction tube. The electrified body is energized with a charge identical to the first predetermined charge of soot, thereby exhausting soot adhering to the electrified body to an exterior of the reaction tube.

Abstract: Disclosed are an image sensor module of a camera and an assembling method thereof capable of simultaneously bonding a circuit pattern and an infrared ray filter to an upper surface of a circuit board section. The image sensor module has the circuit board section including a bonding part made of transparent material. The circuit board section has an upper surface onto which the circuit pattern and the infrared ray filter are simultaneously bonded. An image sensor chip is bonded to a lower surface of the circuit board section using a flip chip bonding technique. A lens holder is bonded to the upper surface of the circuit board section using an epoxy bonding process. A lens assembly is bonded to an upper surface of the lens holder using the epoxy bonding process.

Abstract: An apparatus and method for manufacturing an optical fiber preform are provided. The apparatus comprises a spraying unit having a plurality of nozzles, serving to spray a flame and a material gas, and a supporting unit for supporting and rotating a plurality of base rods arranged around the spraying unit.

Abstract: A conductive connector for use by an image module connects electrically a first electric circuit substrate having a first conductive pattern to a second electric circuit substrate having a second conductive pattern. The conductive connector includes an insulating substrate located between the first electric circuit substrate and the second electric circuit substrate, and has at least one hole formed by perforation, and a conductive filling material filled in the hole for electrically connecting the first conductive pattern to the second conductive pattern.

Abstract: An apparatus and a method adapted for shielding and removing fine particles for a portable camera module generated during a portable camera module fabricating process. The portable camera module includes an image sensor and an infrared ray filter. The apparatus includes a tape attaching device for attaching a surface protective tape on a surface of the infrared ray filter so as to prevent fine particles from being attached to the surface of the infrared ray filter, and a tape detaching device movably installed above the surface protective tape in order to detach the surface protective tape having fine particles shielded from the surface of the infrared ray filter. The fine particles are attached to the surface protective tape, which remains shielding the surface of the infrared ray filter during the holder attaching, primary heat treatment, secondary heat treatment, and under filling processes are subsequently carried out.

Abstract: A vapor axial deposition apparatus for creating an optical fiber perform includes a starting rod axially fixed at one end to a chuck that rotates and moves vertically. A rod cap fixed to the other end of the starting rod is a rotary body with a downwardly facing end portion in axial alignment with the starting rod, and can be configured it various shapes. One heater underneath the rod cap, which receives fuel and raw material, shoots flames up at the rod cap to create a core while another heater, similarly supplied, laterally shoots flames at an outer circumference of the rod cap to create a cladding. A deposited core/cladding ratio is adjusted according to shapes of the rod cap, and finely adjusted by controlling fuel and raw material, the distance between the heaters and the angling of the heaters.

Abstract: An optical fiber alignment system for mounting optical fiber arrays on an optical fiber block having a plurality of grooves on its upper surface according to the present invention comprises jig assemblies including a first jig for propping up a part of the optical fiber arrays and a second jig for adsorbing and fixing the other part of the optical fiber arrays using a plurality of vacuum holes formed on the upper side; X-Y-Z-?X-?Y-?Z stages for translating and rotating the jig assemblies in 3D to align the optical fiber arrays on the block; a vision unit including an image detector to monitor the alignment process of the optical fiber arrays and a display for displaying the image signal on a screen; and, an vision unit translator for translating the vision unit in 3D.

Abstract: An apparatus for measuring residual stress in an optical fiber is disclosed. The apparatus includes a light source for emitting a beam for use in measuring residual stress in an optical fiber, a polarimeter for polarizing the beam and converging the polarized beam to the optical fiber and a slide glass for supporting the optical fiber subject to measurement of its residual stress. The apparatus also includes an analyzer arranged in a position opposite to the slide glass for covering and supporting the optical fiber and for selectively passing a predetermined polarization component of the beam incident from the optical fiber and a detecting unit for visualizing the beam transmitted from the analyzer.

Abstract: A spool for winding an optical fiber includes flanges attached to each other using an ultrasonic fusion splicer. The spool has first and second cylindrical barrels, on which the optical fiber is wound. The flanges have a disk shape and protrude radially from the first and second cylindrical barrels so as to restrict the winding area of the optical fiber. Ultrasonic fusion splicing points form along a junction by engaging the first and second cylindrical barrels in an axial direction so as to face each other, locating a head of an ultrasonic fusion splicer on the junction and generating an ultrasonic wave from the head to the junction so as to fusion splice the first and second flanges together.

Abstract: This invention relates to an alignment apparatus for aligning a planar optical wave-guide element and an optical fiber block wherein alignment can be completed with more precision and less expense than conventional methods. The alignment apparatus comprising a lower plate; a sliding table mounted on the lower plate capable of horizontal displacement on the lower plate; an upper plate mounted to the sliding table; and, a jig disposed on the upper plate and fixed to rotational means and capable of rotation about the upper plate for holding the optical fiber block.