摘要:
An apparatus for forming a thin film using microwave and a method therefor are provided. The apparatus for forming a thin film on a wafer by densifying predetermined soot on a wafer, when the wafer and the soot form a sample, includes a microwave sintering furnace for sealing the sample and exposing the sample to microwave, thus sintering the sample, a sintering furnace atmosphere maker for controlling the state, being the atmosphere of air inside the microwave sintering furnace, a temperature sensor/controller for sensing a temperature inside the microwave sintering furnace, comparing the temperature with a predetermined reference temperature, and outputting an error temperature, and a microwave power source for generating microwave of a predetermined temperature with reference to the error temperature output from the temperature sensor/controller and applying the microwave to the microwave sintering furnace. It is possible to rapidly form a film of a fine and uniform structure by densification using microwave.
摘要:
A Ge--Ga--S-based glass composition having light amplifying characteristics and an apparatus for optical communications using the glass composition are provided. The present invention includes a sulfur-poor Ge--Ga--S based host glass which includes less S than compositions on the composition line of GeS.sub.2 --G.sub.2 S.sub.3 on the ternary phase diagram of Ge--Ga--S, and a rare earth active material doped on the host glass for luminescence and light amplification. Ga of no more than about 10 mol % is included in the host glass. Also, Pr.sup.3+ ions are used as the rare earth active material. Furthermore, for stable vitrification and a blue shift of a short wavelength absorption band, a vitrification stabilizer such as Br and I is added to the host glass. Also, the present invention includes an apparatus for performing optical communications such as a light amplifier using optical fiber comprised of the glass composition including the S-poor Ge--Ga--S host glass which includes less S than a glass on a composition line of GeS.sub.2 --Ga.sub.2 S.sub.3 and the rare earth active material doped on the host glass for the light amplification.
摘要:
A Ge--Ga--S-based glass composition for performing an optical amplification and an apparatus for optical communications using the same are provided. In the glass composition according to the present invention, an active material for performing luminescence and optical amplification operations is added to the Ge--Ga--S host glass and a transition metal ion moving the distribution of optical amplification gains is added in a range from 0.01 mole % to 0.2 mol %.
摘要:
An optical fiber for use in a light amplifier. The optical fiber is formed by doping a gerrnanium-gallium-sulfur (Ge—Ga—S) glass containing less sulfur than a GeS2—Ga2S3 stoichiometric composition line with a rare earth element, and further contains 0.1˜10 atomic % of a halogen element base on the Ge—Ga—S glass. By using optical fiber, clustering of praseodymium (Pr+3) ions can be suppressed even when the concentration of added Pr+3 is high, thereby improving light amplification efficiency.
摘要:
An optical fiber used for an optical amplifier, is formed by doping glass with rare-earth ions. Both praseodymium ions (Pr+3) and erbium ions (Er+3) are used as the rare-earth ions, and the glass is a fluoride glass or a sulfide glass. The optical fiber can be used at wavelengths of both 1.3 &mgr;m and 1.55 &mgr;m. The light amplification efficiency of an optical amplifier made of the optical fiber can be improved compared to that of an optical amplifier formed of only Pr+3 or only Er+3.
摘要:
A heating apparatus and a cleaner having the same are disclosed. The heating apparatus includes a heating casing to receive water from a water container and convert the water into steam, wherein the heating casing comprises a plurality of ribs and each successive rib comprises a space to collect water and convert the water into steam. The cleaner includes a cleaner body in which a water container is detachably mounted, a nozzle assembly rotatably connected to a lower part of the cleaner body and including a nozzle to inject steam, and a heating apparatus that includes a heating casing to receive water from the water container, convert the water into steam, and supply the steam to the nozzle assembly, wherein the heating casing includes a plurality of ribs and each successive rib includes a space to collect water and convert the water into steam.
摘要:
A steam vacuum cleaner, having a suction port assembly including a suction hole formed on a bottom surface thereof and a dust receptacle detachably attached to the suction port assembly; a pump disposed in the suction port assembly to suction dust-laden air from an object being cleaned and to transfer the dust laden air to the dust receptacle; a steam unit disposed on the suction port assembly; a floorcloth unit disposed on the suction port assembly to scrub the object using steam supplied from the steam unit; and a handle member hinged with a portion of the suction port assembly, wherein the handle member has a variable length. Floorcloth plates having a pluraity of steam passages radially formed on the bottom surface thereof may be rotatably mounted on the bottom surface of the suction port assembly.
摘要:
A steam vacuum cleaner. The steam vacuum cleaner includes a suction port assembly comprising a dust receptacle formed therein and an impeller driven by a motor to draw in air and dust from an object being cleaned through a suction port formed on a lower portion of the suction port assembly and to discharge the suctioned air and dust into the dust receptacle, a main body comprising a water tank and a heater unit to receive water from the water tank and generate steam, wherein a lower portion of the main body is hinged to a portion of the suction port assembly, and a floorcloth plate formed on a lower portion of the suction port assembly and comprising at least one floorcloth attached thereto.
摘要:
A suction nozzle assembly usable with a vacuum cleaner includes a nozzle body configured to move along a surface to be cleaned, the nozzle body having a contaminant suction opening; and a hair collecting unit disposed at the nozzle body; wherein the hair collecting unit comprises a hair collecting member that contacts the surface to be cleaned; wherein when the nozzle body moves, the hair collecting member does not rotate; and wherein when the nozzle body moves in a first direction, the hair collecting member collects fibers from the surface to be cleaned.
摘要:
A heating apparatus and a cleaner having the same are disclosed. The heating apparatus includes a heating casing to receive water from a water container and convert the water into steam, wherein the heating casing comprises a plurality of ribs and each successive rib comprises a space to collect water and convert the water into steam. The cleaner includes a cleaner body in which a water container is detachably mounted, a nozzle assembly rotatably connected to a lower part of the cleaner body and including a nozzle to inject steam, and a heating apparatus that includes a heating casing to receive water from the water container, convert the water into steam, and supply the steam to the nozzle assembly, wherein the heating casing includes a plurality of ribs and each successive rib includes a space to collect water and convert the water into steam.