Abstract: A camera module includes an image sensor package including an image sensor chip and a chip cover layer protecting the image sensor chip, a first lens disposed above the image sensor package to be coupled with an upper surface of the chip cover layer, a second lens disposed over the first lens, and an infrared blocking film formed in direct contact with the upper surface of the chip cover layer or an upper surface of the second lens.

Abstract: A robot includes a second bumper that senses an obstacle having such a height that can be passed over. Thus, the robot can pass over the obstacle without avoiding it.

Abstract: A suction head is provided for removing debris from a surface. The suction head includes a suction nozzle which has a generally semi-circular groove formed on an interior surface of the suction nozzle. Additionally, there is a suction hole formed at a generally central region of a rear surface of the nozzle and communicating with the semi-circular groove. Further, a uniform pressure forming region is provided at a longitudinally extending side of the semi-circular groove, and a suction pipe is mounted to the suction hole to guide air in the semi-circular groove through the suction hole.

Abstract: There are provided a moving robot and a method of operating the same. A bottom surface is photographed to sense a moving distance and a moving direction based on input image data. The amount of light radiated to photograph the bottom surface is sensed to feedback control the light emission degree of a light source unit. The light source unit is controlled when errors are generated in sensing the image data. Therefore, the sensing ratio of the photographed image is improved so that correctness of calculating the position of the moving robot is improved.

Abstract: A microwave oven including a hood. The hood adapted to be withdrawn from or inserted into a hood casing. The microwave oven further including an elastic member that applies an elastic force on the hood to facilitate the withdrawal of the hood from the hood casing. The insertion of or withdrawal of the hood from the hood casing provides for a more efficient hood function.

Abstract: A microwave oven including an extendable/retractable hood assembly is provided. The microwave oven draws contaminated air through intake ports that are provided in a hood casing and a hood. The hood is slidably received in the hood casing. Thus, the hood is retracted or extended from the hood casing to more efficiently perform an air exhaust function.

Abstract: A robot includes a second bumper that senses an obstacle having such a height that can be passed over. Thus, the robot can pass over the obstacle without avoiding it.

Abstract: A cleaner includes a body provided with a dust collecting container for storing dust, a fan motor installed at the body and generating a suction force; a vacuum cleaning head disposed at a lower side of the body, into which dust is sucked when the cleaner performs vacuum cleaning. A water cleaning head is mounted at the vacuum cleaning head, for spraying cleaning water onto a region to be cleaned, sucking contaminated water after completing water cleaning, and storing the sucked contaminated water, when water cleaning. By implementing both a vacuum cleaning function for sucking dust and a water cleaning function in one cleaner, a cleaner capable of reducing the cost and, increasing convenience of use is provided.

Abstract: A cleaner includes: a body provided with a dust collecting container for storing dust; a fan motor installed at the body and generating a suction force; a vacuum cleaning head disposed at a lower side of the body, for sucking dust when vacuum cleaning; and a water cleaning head mounted at the vacuum cleaning head, and provided with a suction head through which contaminated water is sucked when water cleaning and a water collecting container for storing contaminated water sucked through the suction head. As a suction nozzle for sucking contaminated water and a water collecting container for storing the contaminated water sucked through the suction nozzle are integrally formed and installed at a suction head, a cleaner capable of reducing the number of parts and a production cost, and employing a small capacity fan motor is provided.

Abstract: A vacuum cleaner comprises: a body; a suction head arranged at a lower side of the body and sucking dust or filth; a suction fan mounted at the body and generating a suction force; a dust collecting container mounted in the body and collecting dust or filth sucked into the suction head; and a compression unit mounted at the body and compressing dust or filth collected in the dust collecting container.

Abstract: A complex type cleaner is provided. The complex type cleaner includes a body having either a dust collecting container that stores dust or a water collecting container that stores contaminated water, a fan motor installed in the body that generates a suction force, a suction head arranged at a lower side of the body, that sucks dust at a time of performing a vacuum cleaning operation, a water tank mounted adjacent the suction head, that stores cleaning water to be sprayed onto a region to be cleaned at a time of performing a water cleaning operation, and a suction nozzle integrally formed with the water tank, that sucks water contaminated after completing the water cleaning operation. The complex type cleaner so configured reduces a number of components, reduces a fabrication cost, and has a large capacity water tank.

Abstract: A detecting apparatus and method of a robot cleaner is disclosed. The apparatus includes a detecting unit provided with a transmitting unit for sending a signal to detect the floor and a receiving unit for receiving a signal sent from the transmitting unit to be reflected on the floors an optic angle adjusting unit disposed at least one of the transmitting unit and the receiving unit and configured to adjust optic angles of the signals, and a light shielding unit configured to partially shield a signal sent through the optic angle adjusting unit in order to reduce a deviation of each signal of the transmitting unit and the receiving unit. Accordingly, a measurement deviation with respect to color and feel of the floor can be reduced. Also, an amount of light received at the receiving unit can be obtained as much as required, which allows an accurate detection of the detecting apparatus. In addition, even if there are both drop-off and bump on the floor, the robot cleaner can smoothly operate.

Abstract: Disclosed herein is a blowing apparatus for refrigerators. The blowing apparatus includes a centrifugal fan. The centrifugal fan comprises a hub plate connected to a shaft of the motor, a plurality of blades attached to the hub plate in the radial direction of the hub plate for forcing cool air to flow, and a ring-shaped shroud connected to ends of the blades. The ratio of the inner diameter of the centrifugal fan, formed through connection of the inner ends of the blades, to the outer diameter of the centrifugal fan, formed through connection of the outer ends of the blades, is 0.63±0.01. With the blowing apparatus for refrigerators according to the present invention, flow loss is minimized. Consequently, the present invention has the effect that energy consumption is reduced, noise is decreased, and thus the refrigerator is quietly operated.

Abstract: A suction head is provided for removing debris from a surface. The suction head includes a suction nozzle which has a generally semi-circular groove formed on an interior surface of the suction nozzle. Additionally, there is a suction hole formed at a generally central region of a rear surface of the nozzle and communicating with the semi-circular groove. Further, a uniform pressure forming region is provided at a longitudinally extending side of the semi-circular groove, and a suction pipe is mounted to the suction hole to guide air in the semi-circular groove through the suction hole.

Abstract: Disclosed herein is a cool air circulation type axial flow fan for a refrigerator. The fan comprises a plurality of spaced blades mounted on the outer circumference of a hub for blowing cool air to a freezing chamber and a chilling chamber of the refrigerator. Several important design factors, such as the number of blades, a sweep angle, a pitch angle, a rake angle, a maximum camber position, and a maximum camber ratio of each of the blades, of the fan are optimally determined, whereby a noise generated over a wide frequency band is remarkably reduced. Furthermore, power consumption is reduced with reduction of flow loss.

Abstract: A vacuum cleaner comprises: a body; a suction head arranged at a lower side of the body and sucking dust or filth; a suction fan mounted at the body and generating a suction force; a dust collecting container mounted in the body and collecting dust or filth sucked into the suction head; and a compression unit mounted at the body and compressing dust or filth collected in the dust collecting container.

Abstract: Disclosed herein is a cool air circulating blower for a refrigerator. The blower comprises a blowing fan for blowing cool air, a motor for driving the blowing fan, and a shroud for guiding the cool air leaving the blowing fan. The shroud is designed to suppress generation of turbulence in such a manner that the cool air leaving the blowing fan is dispersed quickly and condensed water obtained by condensation of moisture laden in the cool air is guided to some places other than the motor, whereby the noise caused due to the turbulence is reduced, the power consumption is decreased, the blowing efficiency is improved, and any breakdown of the motor due to the condensed water is prevented.

Abstract: Disclosed is a blast fan for blowing air in a centrifugal direction thereof. The blast fan comprises a hub coupled to a rotating shaft of a motor, and a plurality of blades equally spaced and arranged around the outer peripheral surface of the hub. More particularly, the blast fan, of axial flow type or diagonal flow type, is configured so that turbo blades are integrally coupled to respective tips or trailing edges of the rotary blades. By achieving an optimal installation angle of the turbo blade, it is possible to achieve an increase in the flow rate and to reduce the level of noise generated.

Abstract: Disclosed herein is a cool air circulation type axial flow fan for a refrigerator. The fan comprises a plurality of spaced blades mounted on the outer circumference of a hub for blowing cool air to a freezing chamber and a chilling chamber of the refrigerator. Several important design factors, such as the number of blades, a sweep angle, a pitch angle, a rake angle, a maximum camber position, and a maximum camber ratio of each of the blades, of the fan are optimally determined, whereby a noise generated over a wide frequency band is remarkably reduced. Furthermore, power consumption is reduced with reduction of flow loss.

Abstract: Disclosed herein is a cool air circulating blower for a refrigerator. The blower comprises a blowing fan for blowing cool air, a motor for driving the blowing fan, and a shroud for guiding the cool air leaving the blowing fan. The shroud is designed to suppress generation of turbulence in such a manner that the cool air leaving the blowing fan is dispersed quickly and condensed water obtained by condensation of moisture laden in the cool air is guided to some places other than the motor, whereby the noise caused due to the turbulence is reduced, the power consumption is decreased, the blowing efficiency is improved, and any breakdown of the motor due to the condensed water is prevented.