Abstract: A telescopic pipe for an electronic apparatus is provided. The telescopic pipe for the electronic apparatus includes an outer pipe, an inner pipe with fixing grooves, inserted into the outer pipe; a holder pipe fixed to one side of the outer pipe, a handle pipe formed to surround the holder pipe, and a sealing member formed on an outer surface of the inner pipe to seal the space between the outer and inner pipes. In the telescopic pipe, the sealing member has at least one sealing portion of which a shape is changed by a negative pressure produced in the interior of the inner pipe so that its sealing force is enhanced.

Abstract: A substrate cutting method includes the steps of aligning a panel including two or more substrates, along a cutting line, forming groove lines in the respective substrates of the panel along the cutting line, by oscillating respective ultraviolet UV laser beams along the cutting line, and cutting the panel along the groove lines, by applying force to the panel.

Abstract: An apparatus to combine a filter to a collimator includes a filter supporting part to support the filter which has one side coated with an adhesive, and a chucking holder provided in a lower part of the filter supporting part to chuck the collimator. The apparatus also includes an elevation part to elevate the chucking holder toward the filter supporting part, and at least one heating part provided in one side of the filter supporting part to heat a region of contact between the collimator and the filter. Thus, a filter combining apparatus for a collimator allows the filter to be easily combined to an end of the collimator.

Abstract: An apparatus to combine a filter to a collimator includes a filter supporting part to support the filter which has one side coated with an adhesive, and a chucking holder provided in a lower part of the filter supporting part to chuck the collimator. The apparatus also includes an elevation part to elevate the chucking holder toward the filter supporting part, and at least one heating part provided in one side of the filter supporting part to heat a region of contact between the collimator and the filter. Thus, a filter combining apparatus for a collimator allows the filter to be easily combined to an end of the collimator.

Abstract: A vacuum cleaner includes a housing having a suction opening disposed between front and rear brushes for sucking dirt from a floor. A rag disposed behind the rear brush is rotatably driven about a transverse axis by the reciprocal action of the housing as the latter is displaced along the floor. A water supply keeps the rag moist. The rag is driven such that the floor-engaging portion is driven in a direction opposite the direction of housing travel. An auxiliary opening in the suction line sucks dirt from the rag at a location above the floor.