Abstract: An apparatus for preparing hydrogen water includes: an electrolysis device configured to electrolyze water and including an electrode module formed of a positive electrode, a negative electrode, a solid polymer electrolyte membrane, and an auxiliary electrode, wherein the electrolysis device is divided into a first chamber and a second chamber with the electrode module as a center; a hydrogen water discharge port configured to discharge hydrogen water including active hydrogen generated at the negative electrode of the first chamber, by being arranged in the first chamber; a spray port configured to spray water toward the negative electrode, by being arranged in the first chamber; an ozone water discharge port configured to discharge water including ozone generated at the positive electrode of the second chamber; a storage tank configured to store hydrogen water and sterilizing water in an internal space thereof, by being connected to a first flow channel connected to the hydrogen water discharge port and to

Abstract: An apparatus for preparing hydrogen water includes: an electrolysis device configured to electrolyze water and including an electrode module formed of a positive electrode, a negative electrode, a solid polymer electrolyte membrane, and an auxiliary electrode, wherein the electrolysis device is divided into a first chamber and a second chamber with the electrode module as a center; a hydrogen water discharge port configured to discharge hydrogen water including active hydrogen generated at the negative electrode of the first chamber, by being arranged in the first chamber; a spray port configured to spray water toward the negative electrode, by being arranged in the first chamber; an ozone water discharge port configured to discharge water including ozone generated at the positive electrode of the second chamber; a storage tank configured to store hydrogen water and sterilizing water in an internal space thereof, by being connected to a first flow channel connected to the hydrogen water discharge port and to

Abstract: Provided is a zoom lens system including: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a fourth lens group having a negative refractive power sequentially from an object side to an image side, wherein a zooming operation is performed by moving the second lens group and the fourth lens group.

Abstract: Provided is an infrared optical lens system including: a first lens having negative refractive power; and a second lens having positive refractive power, wherein the first lens and the second lens are disposed in this order from an object side to an image side.

Abstract: An infrared optical lens system including: a first lens which comprises a crystalline material; and a second lens which comprises an amorphous material and is formed by using molding processing, wherein a refractive index of the first lens is greater than that of the second lens, and the first lens and the second lens are disposed in the order from an object to an image.

Abstract: Provided is a zoom lens system including: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a fourth lens group having a negative refractive power sequentially from an object side to an image side, wherein a zooming operation is performed by moving the second lens group and the fourth lens group.

Abstract: Provided is an infrared optical lens system including: a first lens having negative refractive power; and a second lens having positive refractive power, wherein the first lens and the second lens are disposed in this order from an object side to an image side.

Abstract: The present invention provides a piezoelectric ultrasonic motor driver which can perform self-oscillation, adjust the rotational direction of the motor, and be easy to manufacture. The motor includes a metal body having a desired shape; a plurality of piezoelectric plates attached to surfaces of the metal body, contracted and expanded to rotate the metal body; a self-oscillation unit for oscillating at an electromechanical frequency of the piezoelectric plates an electrical signal; and a delay unit for delaying an oscillation signal of the self-oscillation unit in phase by 90 or ?90 degrees according to a desired rotational direction.

Abstract: In a method for requesting a repair of a refrigerator through the Internet and a system therefor, and particularly in a refrigerator and a method for controlling the same, a failure of a refrigerator can be quickly and accurately repaired although a user can not recognize the failure of the refrigerator by setting a self-checkup function of a refrigerator, comparing failure relation data sensed by various sensing means to preset reference data stored in a database and transmitting a compared result to a service center or a serviceman through the Internet.

Abstract: A lock assembly having a short key recess for reducing a length of an ignition key for a vehicle includes, a locking lever, a stopper plate and a push rod placed in a steering shaft. Thereby, a modulation of a crush pad and an instrument panel can be easily established. As the structure and an operation mechanism of the lock assembly are improved, there are advantages in that the length of the ignition key can be reduced while it is possible to provide a convenience to a user.

Abstract: The present invention relates to a display apparatus for a refrigerator. In the present invention, the display apparatus is constructed by using a single-sided board 30 with circuit patterns 32 formed on one side thereof. The single-sided board 30 is formed with through-holes 33 through which jumper wires 34 pass so as to connect circuit patterns spaced far apart from one another among the circuit patterns 32. Remaining portions of the jumper wires 34 except the portions thereof connected to the circuit patterns 32 are disposed on a side of the board with no circuit patterns formed thereon. Light-emitting devices 40 are mounted on the single-sided board 30 so that the circuit patterns 32 and leads 42 of the light-emitting devices are electrically connected with one another. The light-emitting devices 40 receive electrical signals through the circuit patterns 32 by means of the electrical connection of the leads 42 with the circuit patterns 32, and selectively emit light so as to display information.

Abstract: Disclosed is a lock assembly having a short key recess for reducing a length of an ignition key for a vehicle. According to the present invention, a locking lever, a stopper plate and a push rod consisting the lock assembly of the vehicle have an improved structure, which are placed in a steering shaft. Thereby, a modulation of a crush pad and an instrument panel can be easily established. As the structure and an operation mechanism of the lock assembly are improved, there are advantages in that the length of the ignition key can be reduced while it is possible to provide a convenience to a user.

Abstract: In a method for requesting a repair of a refrigerator through the Internet and a system therefor, and particularly in a refrigerator and a method for controlling the same, a failure of a refrigerator can be quickly and accurately repaired although a user can not recognize the failure of the refrigerator by setting a self-checkup function of a refrigerator, comparing failure relation data sensed by various sensing means to preset reference data stored in a database and transmitting a compared result to a service center or a serviceman through the Internet.

Abstract: The present invention relates to a display apparatus for a refrigerator. In the present invention, the display apparatus is constructed by using a single-sided board 30 with circuit patterns 32 formed on one side thereof. The single-sided board 30 is formed with through-holes 33 through which jumper wires 34 pass so as to connect circuit patterns spaced far apart from one another among the circuit patterns 32. Remaining portions of the jumper wires 34 except the portions thereof connected to the circuit patterns 32 are disposed on a side of the board with no circuit patterns formed thereon. Light-emitting devices 40 are mounted on the single-sided board 30 so that the circuit patterns 32 and leads 42 of the light-emitting devices are electrically connected with one another. The light-emitting devices 40 receive electrical signals through the circuit patterns 32 by means of the electrical connection of the leads 42 with the circuit patterns 32, and selectively emit light so as to display information.

Abstract: In a method for requesting a repair of a refrigerator through the Internet and a system therefor, and particularly in a refrigerator and a method for controlling the same, a failure of a refrigerator can be quickly and accurately repaired although a user can not recognize the failure of the refrigerator by setting a self-checkup function of a refrigerator, comparing failure relation data sensed by various sensing means to preset reference data stored in a database and transmitting a compared result to a service center or a serviceman through the Internet.

Abstract: A refrigerator includes a main body, freezing and refrigerating compartments formed in the main body, an evaporator for generating cool air, and a cool air dispersing system for dispersing cool air in the refrigerating compartment. The cool air dispersing system has a horizontal cool air dispersing device rotatable about a vertical axis for dispersing the cool air in a horizontal direction, a motor for rotating the horizontal cool air dispersing device, and a vertical cool air dispersing device for dispersing the cool air in the vertical direction. A force converting device is provided for vertically moving the vertical cool air dispersing device using a rotational force of the horizontal cool air dispersing device.

Abstract: In a clock system having active and standby clocks for synchronizing cell data flow in a data system, and for preventing cell data loss during active to standby clock switching, a prevent circuit maintains the active clock cycle signal during the active/standby clock switching to ensure the proper setup time before the active clock is disabled. The prior standby clock will become active during the maintenance period, thereby providing the proper setup time before and after switching, permitting system redundancy without loss of data.