Abstract: The invention concerns a novel surgical drape with a first fenestration for an incise film and a collection pouch related to this film for surgical residues according to the state of the art. The drape features at least one further fenestration for the reception of a cover for a reference device protruding from the level of the surface of the drape, which is identifiable for a 2- or 3-dimensional measurement system.

Abstract: A headband, cap, hat, or the like worn by a child, particularly an infant, includes an embedded sound-attenuation system to protect hearing against loud sounds that might startle, awaken, or injure a wearer. Shells formed of a comparatively soft and flexible elastomeric material are secured against the head of a user, each enclosing an ear in an air tight chamber, to close down the transmission paths available to sound waves. The shells are impervious to air, and flexible to conform to the head when secured by the headgear in which the shells are embedded. Each shell is provided with a rim, sufficiently flexible to deform and deflect into complete, sealed contact with the head.

Abstract: A disposable smoking pipe may comprise a shaft having a mouthpiece end and a bowl end, a recess being formed in the bowl end, a mouth opening formed in the mouthpiece end, and a passage extending from the mouth opening to the recess to put the recess in fluid communication with the mouth opening. The shaft has an exterior surface with a generally cylindrical in shape between the mouthpiece end and the bowl end, and the shaft is formed from a corncob.

Abstract: A tobacco product produced by wrapping cut tobacco with a pouch or a cigarette paper, wherein the pouch or the cigarette paper has an inner layer and an outer layer, and a paper of the outer layer has an air permeability higher than that of a paper of the inner layer.

Abstract: A process for treating a tobacco material comprising: (a) extracting a tobacco material with a solvent to produce a tobacco extract and a tobacco residue; (b) contacting the tobacco extract with an antioxidant; and (c) contacting the mixture of (b) with an antioxidant scavenger, to produce a treated tobacco extract. The treated tobacco extract is reapplied to the tobacco residue to form a treated tobacco material. In addition, a smoking composition, a smoking article and a smokeless tobacco oral delivery product contain the treated tobacco material.

Abstract: A smokeless flavor inhalator includes a tobacco material as a flavor generator, and a heater for heating the tobacco material to allow flavor components to be released from the tobacco material while preventing smoke from being generated from the tobacco material. The heater has a carbon heat source and a cooling element. The carbon heat source and the cooling element cooperatively keep the heating temperature of the tobacco material at a temperature of 50 to 200° C.

Abstract: The artificial hair of the present invention comprising a flame-retardant polyester-based fiber that is formed of a composition obtained by melt-kneading, the composition comprising: 100 parts by weight of polyester (A); 5 parts by weight to 30 parts by weight of a bromine-containing flame retardancy agent (B); and 0.5 parts by weight to 10 parts by weight of an antimony compound (C) having an average particle diameter ranging from 1.5 ?m to 15 ?m, wherein the polyester (A) is made of at least one polymer selected from the group consisting of polyalkylene terephthalate and copolyester, where the copolyester contains polyalkylene terephthalate as a main component, and 0.01% omf to 1% omf of a polyorganosiloxane-based fiber treating agent (E) is deposited on the flame-retardant polyester-based fiber. The artificial fiber has excellent combing smoothness, and the excellent flame retardancy.

Abstract: The nail-cleaning tool 1000 has a body part 100 and the body part 100 has an oil reservoir 80 therein. An abrasive member 10 and a nib 20 are protruded from the body part 100. The nib 20 is connected to the oil reservoir 80 so that oil is supplied to the nib 20 from the oil reservoir 80, and the nib 20 and the abrasive member 10 are aligned to be in contact with each other by their faces along the longitudinal direction of the body part 100.

Abstract: An applicator including an applying part of a liquid absorber impregnated with an application liquid. An indicator portion having a jagged configuration that varies in reflectance of light depending on the quantity of the application liquid in the liquid absorber is formed adjacent to the liquid absorber, and the formed area of the indicator portion of an application liquid feeder can be visually observed from the outside so that the quantity of the application liquid can be displayed by the reflected light of indicator portion. The applicator allows a visual check on whether the application liquid is full or less when the applicator is unused or when the application liquid is decreased after use, from the change of the reflectance of light in indicator. The applicator permits easy confirmation of the liquid quantity and can easily avoid liquid blobbing.

Abstract: The present invention relates to a cosmetic process for treating a keratin material, characterized in that it comprises at least one step of applying to the said keratin material a coating formed from a liquid composition comprising, in a cosmetically acceptable medium, at least one copolymer containing polyamide blocks and polyether blocks resulting from the co-polycondensation of polyamide blocks containing reactive ends with polyether blocks containing reactive ends; the said copolymer being in solution or in dispersion, and at least one organic solvent. The present invention also relates to a cosmetic assembly comprising a) at least one liquid composition comprising, in a cosmetically acceptable medium, at least one copolymer containing polyamide blocks and polyether blocks in solution or in dispersion, and at least one organic solvent; b) a device for applying the said composition to the keratin materials.

Abstract: A hair extension includes a hair weft. The hair weft is made of individual strands of human or synthetic hair. Far infrared powder is deposited onto Polyurethane (PU) and/or Keratin adhesive glue and webbing of silk or synthetic lace is incorporated with hair weft to create the human or synthetic hair PU and/or Keratin skin as connection strip(s). A connection strip receives connected ends of the individual strands of human or synthetic hair. A top adhesive strip is disposed on a top side of the connection strip and a bottom adhesive strip is disposed on a bottom side of the connection strip. The top and bottom adhesive strips both have a left side and a right side. The left side of the top adhesive strip and right side of the top adhesive strip are divided by an adhesive parting line.

Abstract: An eyelash extension system includes an extension strip with a backing and a plurality of eyelash extensions. Each extension has a proximal end and a distal end. The proximal end of each extension is joined to the backing and distal end of each extension extends away from the backing. The system also includes an extension tray with at least one curved extension attachment surface to receive the extension strip such that adhering the extension strip to the curved extension attachment surface spreads the distal ends of the extensions farther apart than the proximal ends of the extensions joined to the backing.

Abstract: A hair dryer includes a main dryer unit having a dryer outlet and a nozzle which is mounted on the main dryer unit. The nozzle includes a nozzle body and a rotational body. The nozzle body has a first end portion, a second end portion, and an engagement structure provided on the first end portion and is arranged for connecting to the air outlet of the hair dryer. The rotational body has an air-flowing channel longitudinally extended along an axis of the rotational body, an outer rotational surface, and a plurality of through air outlets provided on the outer rotational surface and is communicated with the air-flowing channel, wherein the rotational body is mounted at the second end portion of the nozzle body for allowing hair to be curled on the rotational surface and dried by air blowing out of the air outlets.

Abstract: A hair styling tool kit has cylindrical hollow hair roller(s) having bristles positioned on exterior thereof, a handle engaging member extending co-axially within a cavity of the hair roller. A transverse plate partially closes a proximate end of the hair roller, and the handle engaging member is secured to the transverse plate. The handle has a roller engaging part, which matches configuration of the interior of the handle engaging member. A magnet is fitted in the contact ends of the handle engaging member and the roller engaging part allowing the handle and the hair roller to stay connected while the suer rolls her hair on the hair roller.

Abstract: A hair styling device is disclosed that allows women and/or men to straighten wavy or curly hair without having to run a flatiron through each section and without having to apply a chemical straightening treatment. The hair styling device comprises a tower and a plurality of clips which are retained within the tower. The tower further comprises a plurality of slots for partially retaining the plurality of clips and heating the clips. The plurality of slots are positioned within the four relatively vertical sides of the tower. The clips are designed to be partially inserted into the slots and placed around an internal heating component, thus securing the clips within the slots. The clips comprise a top and bottom portion hinged together to form a generally clamshell shape and a clasp secured to the hinge, which once depressed, would pivot the hinged top and bottom portions in opposing directions.

Abstract: A compact system for applying a product to a surface including a removable applicator slideably housed in a compact comprising an actuator and a slide-mechanism. In one example, the slide-mechanism is configured to magnetically couple with a magnet in the base of the applicator, and slides the applicator into and out of the compact. By virtue of having a removable applicator, the compact system is portable and convenient, while at the same time the applicator remains clean and intact until a time of use.

Abstract: A customizable cosmetic palette is provided. A base assembly having a magnetic surface therein retains cosmetic pans of different shapes and sizes within the palette body, and allows replacement and rearrangement of the pans as necessary. One or more covers are provided to protect the contents during use, storage, handling and/or travel.

Abstract: A dental floss gripper has a ring-shaped base element and a clamp that is pivotally coupled to the ring for movement between open and closed positions. In the closed position, the clamp grips a length of dental floss supported on the external surface of the ring. The clamp and the ring are configured so that the clamp snap-fits to the base element and securely holds the dental floss in use.

Abstract: This description relates to a wafer debonding and cleaning apparatus including an automatic wafer handling module. The automatic wafer handling module loads a semiconductor wafer into a wafer debonding module for a debonding process. The automatic wafer handling module removes the semiconductor wafer from the debonding module and loads the semiconductor wafer into a wafer cleaning module for a cleaning process.

Abstract: Methods for cleaning a side edge of a thin film photovoltaic substrate utilizing a laser are provided. The method can include transporting the substrate in a machine direction to move the substrate past a first laser source, and focusing a first laser beam generated by the first laser source onto the side edge of the substrate such that the laser beam removes the thin film present on the side edge of the substrate. An apparatus is also generally provided for cleaning a first side edge and a second side edge of a thin film photovoltaic substrate.

Abstract: In an ion bombardment apparatus of the present invention, a heating type thermal electron emission electrode formed by a filament is placed on one inner surface of a vacuum chamber, an anode for receiving a thermal electron from the thermal electron emission electrode is placed on another inner surface of the vacuum chamber, and a base material is placed between the thermal electron emission electrode and the anode. Further, the ion bombardment apparatus has a discharge power supply for generating a glow discharge upon application of a potential difference between the thermal electron emission electrode and the anode, a heating power supply for heating the thermal electron emission electrode so as to emit the thermal electron, and a bias power supply for applying negative pulse-shaped bias potential with respect to the vacuum chamber to the base material.

Abstract: A method of cleaning tungsten plug surfaces in ultra large scale integrated circuits after chemical-mechanical polishing, the method including: a) preparing a cleaning solution by mixing deionized water, between 15 and 30 g/L of an active agent with respect to the deionized water, between 5 and 20 g/L of a chelating agent with respect to the deionized water, and between 1 and 60 g/L of a corrosion inhibitor with respect to the deionized water; b) after alkaline chemical-mechanical polishing, washing the tungsten plug surfaces using the cleaning solution at a flow rate of between 1000 and 4000 g/min for between 30 s and 3 min.

Abstract: A cleaning device for cleaning substrates is provided. The device comprises a cleaning brush having an outer cleaning surface surrounding a hollow bore and positioned around a first central axis al defining a first rotational direction ?; and a plurality of cantilevered nodules formed on the outer cleaning surface, each nodule having a mounting portion connected with the outer cleaning surface, a cleaning portion connected with the mounting portion, and a contact member for engaging the substrate. The cleaning portion extends in a first direction D1 from the mounting portion to the contact member, wherein a radial direction Dr is defined as extending radially from the central axis a1 towards the outer cleaning surface and normal to the rotational direction ?, and wherein the first direction D1 intersects with the radial direction Dr at an angle ?. Angle ? is greater than 0° and less than 180°.

Abstract: Methods for cleaning a side edge of a thin film photovoltaic substrate are provided. A cleaning solution can be applied to a cleaning wheel that has a cleaning surface and is rotatable about an axis. The substrate can then be transported in a machine direction to move the substrate past the cleaning wheel such that the cleaning surface of the cleaning wheel contacts the side edge of the substrate allowing the cleaning solution to remove any thin film present on the side edge of the substrate. Apparatus is also generally provided for cleaning a side edge of a thin film photovoltaic substrate.

Abstract: Water-soluble solvent compositions, including from about 10% to about 60% by weight of an aromatic ester; from about 30% to about 60% by weight of an aliphatic ester; from 0% to about 15% by weight of a co-solvent; from 0% to about 20% of one of a cyclic terpene and a terpenoid; from 0% to about 1% by weight of an odor-masking agent; and from 0% to about 20% by weight of a nonionic surfactant, for removing petroleum residue from a substrate, and methods of use thereof. The composition can further comprise water. The composition also can comprise an aqueous solution. The method for removing petroleum residue from a substrate can further comprise recycling the solvent composition by using a countercurrent separation column charged with compressed ammonia and/or carbon dioxide and a spinning band distillation column to separate the solvent composition from the petroleum residue.

Abstract: A chemical liquid process is performed on a substrate. Then, a rinse process that supplies a rinse liquid to the substrate is performed. Thereafter, a drying process that dries the substrate is performed while rotating the substrate. The drying process includes a first drying process that rotates the substrate at a first rotational speed; a second drying process that decreases the rotational speed of the substrate to a second rotational speed lower than the first rotational speed after the first drying process. In the second drying process, the rinse liquid and a drying solution are agitated and substituted while generating braking effect. In a third drying process, the rotational speed of the substrate is increased from the second rotational speed to a third rotational speed after the second drying process. Thereafter, in a fourth drying process, the drying solution on the substrate is scattered away by rotating the substrate.

Abstract: A substrate processing apparatus cleaning method that includes: containing a cleaning gas in a reaction tube without generating a gas flow of the cleaning gas in the reaction tube by supplying the cleaning gas into the reaction tube and by completely stopping exhaustion of the cleaning gas from the reaction tube or by exhausting the cleaning gas at an exhausting rate which substantially does not affect uniform diffusion of the cleaning gas in the reaction tube from at a point of time of a period from a predetermined point of time before the cleaning gas is supplied into the reaction tube to a point of time when several seconds are elapsed after starting of supply of the cleaning gas into the reaction tube; and thereafter exhausting the cleaning gas from the reaction tube.

Abstract: Methods and apparatus for reducing post PECVD vacuum and abatement system fouling. Chamber cleaning times are reduced leading to increased efficiency and lower cost fabrication processes by introducing F2 or a fluorine containing gas into the PECVD system. When using F2, the cleaning gas may be introduced directly to desired locations of the system where it can interact without activation with unwanted deposits. Alternatively, the cleaning gas may be activated in-situ in the equipment using existing plasma discharge equipment, or the cleaning gas may be activated using an RPS and then introduced to the desired location in its already activated state.

Abstract: A cleaning apparatus for microsurgical instruments has a flush chamber closed off at one end by a first plug adapted to liquid-tightly grip one end of the instrument, allowing a portion of the instrument to extend past the first plug and out of the flush chamber. The other end of the flush chamber is closed off by a second plug having an inlet port. Liquid injected through the inlet port on the second plug passes through an internal passageway formed in the instrument and exits the instrument through the portion that extends past the first plug. In another embodiment the instrument has an internal passageway and an end cap through which flushing ports are formed which communicate with the passageway. A first plug having an inlet port is liquid-tightly attached to the end cap and liquid injected into the first plug passes through the plug, through the flushing ports and through the passageway to clean detritus from the instrument.

Abstract: A household appliance includes a circulation pump for circulating dishwashing liquid in a washing compartment of the household appliance. A drain pump empties the dishwashing liquid from the washing compartment. For the purposes of ventilating the drain pump, a control device is provided to activate the drain pump after the washing compartment has been filled with the dishwashing liquid and before or during operation of the circulation pump.

Abstract: A cartridge for a water-conducting domestic appliance, in particular a domestic dishwasher, which has a detergent dosing system having at least one detergent dispenser for receiving at least one cartridge, wherein the cartridge has separate chambers for storing at least two detergents, the cartridge including a cartridge housing having at least two chambers formed therein, wherein each chamber has a storage capacity for storing detergent which is greater than the quantities required for one washing cycle.

Abstract: Methods for cleaning a substrate are provided. One such method includes receiving the substrate into a cleaning module and flowing an inert gas into the cleaning module. The flowing of the inert gas includes flowing the inert gas into an inlet defined within a top surface of the cleaning module and modifying a direction of the flowing inert gas to flow radially along the top surface of the cleaning module. Concurrent with or after initiating the flowing of the inert gas, a cleaning chemistry is introduced onto a surface of the substrate. The cleaning chemistry is at a temperature elevated from an ambient temperature. The dispensing of the cleaning chemistry is terminated and the flowing of the inert gas is terminated either concurrent with or after termination of the dispensing of the cleaning chemistry. The substrate is dried after the termination of the flowing of the inert gas.

Abstract: Spray apparatus including an air heater and mixer for mixing a liquid, typically a disinfectant or a cleaning agent, into the air stream created by the air heater. The spray apparatus can be provided on a carrier back frame or on a cart.

Abstract: A vaporized material supply apparatus includes: a storage tank for storing a liquid material; a first temperature controller for controlling the storage tank to be at a first temperature; a carrier gas inlet line for introducing a carrier gas into the storage tank; a processing gas outlet line for discharging a processing gas out of the storage tank; a container having an inlet port connecting to the processing gas outlet line and an outlet port via which the processing gas is discharged; an interference member to interfere with flow of the processing gas in the container; and a second temperature controller for controlling the container to be at a second temperature lower than the first temperature.

Abstract: In one embodiment, a cleaning chamber is provided. The cleaning chamber has a base portion housing a first chuck, a top portion housing a plurality of cups, and a middle portion functioning as a lid for the base portion and a second chuck for the top portion. A rail couples the top portion and the middle portion, wherein the top portion is rigidly mounted to the rail, while the middle portion is slidably mounted to the rail. A support frame is rigidly mounted to the base portion, the support frame being pivotably affixed to the rail, wherein the rail maintains a vertical alignment between the top portion and the middle portion as the rail pivots.

Abstract: A water-conducting domestic appliance, in particular a domestic dishwasher, the water-conducting domestic appliance including a washing compartment for receiving items therein that are to be subjected to a handling process by the water-conducting domestic appliance; and a detergent dosing system, the detergent dosing system having a detergent dispenser with a receiving compartment, the receiving compartment for receiving at least one cartridge that is configured to hold at least one detergent. The detergent dosing system is formed from a plurality of housing walls and at least one portion of at least one housing wall of the detergent dosing system has thermal insulation.

Abstract: Disclosed is an oil clearing apparatus for a bowling ball which clears oil on a surface of a bowling ball by using high-temperature heat, thereby preventing the bowling ball from sliding due to the oil applied to a lane of a bowling alley, and is utilized for the purpose of keeping the bowling ball warm and heating the bowling ball, as well as storing the bowling ball.

Abstract: The present invention relates to a dishwasher (1) comprising a tub (2) wherein the items to be washed are placed and a door (3) providing access to the tub (2), and wherein formation of unpleasant odor in the tub (2) is prevented by way of air within the tub being circulated through an ion generator.

Abstract: A cup intermediate portion and a cup lower portion surround a substrate. The cup intermediate portion is arranged above an upper surface of the cup lower portion. A sidewall surrounds the cup intermediate portion and the cup lower portion. A spacing between the upper surface of the cup lower portion and a lower surface of the cup intermediate portion gradually decreases outward from an outer peripheral portion of the substrate while a clearance is formed between the lower surface of the cup intermediate portion and the upper surface of the cup lower portion in respective outer peripheral portions of the cup intermediate portion and the cup lower portion. An inner peripheral surface of the sidewall is spaced apart from the clearance outside the clearance and surrounds the clearance.

Abstract: A fluid flushing apparatus for a fluid line with a fluid bearing debris, the apparatus includes an outer surrounding sidewall having an external surface and an interior surface defining a first interior, the outer sidewall having an inlet end with a first check valve and flange end, with the inlet end attached to a fluid line inlet. Also, an inner surrounding sidewall with an outside surface and an inside surface that defines a first void, also with a primary end and a secondary end with a second check valve attached to the fluid line outlet. The outside surface is a slip fit with the interior surface, wherein the inner sidewall is disposed within a portion of the first interior. Operationally, the inlet and the secondary ends are drawn apart and then pushed together, thereby moving the fluid and debris from the inlet to the outlet of the fluid line.

Abstract: Arrangements for communications among subsystems within adaptive cooling and energy harvesting arrangements for use in information technology and other heat-producing equipment are disclosed. The arrangements provide for cooling and energy harvesting subsystems, each of which can operate in isolation and can be interconnected with additional subsystems in peer and hierarchical relationships. Each subsystem comprises at least one thermoelectric device capable of acting as a thermoelectric cooler and as a thermoelectric generator, a control system, and electronics controlled to selectively configure the thermoelectric device in at least in a thermoelectric cooler operating mode and in a thermoelectric generation operating mode. The thermoelectric device can incorporate quantum-process and quantum-well materials for higher heat transfer and thermoelectric generation efficiencies.

Abstract: A plasmoelectric device for conversion of optical power to direct current (DC) electrical power includes a first plasmonic nanostructure having a first resonance value and a second plasmonic nanostructure having a second resonance value. The first and second plasmonic nanostructures are electrically coupled and the first plasmonic nanostructure is configured to receive irradiation at a first irradiation value and the second plasmonic nanostructure is configured to receive irradiation at a second irradiation value, to induce charge transfer between the first and second plasmonic nanostructures.

Abstract: Thin film photovoltaic devices are generally provided having three terminals. In one embodiment, the thin film photovoltaic device can include a first submodule defined by a first plurality of photovoltaic cells between a first dead cell and a first terminal cell; a second submodule defined by a second plurality of photovoltaic cells between a second dead cell and a second terminal cell; and a joint bus bar electrically connected to the first dead cell and the second dead cell. The first dead cell is adjacent to the second dead cell, with the first dead cell being separated from the second dead cell via a separation scribe. Methods are also generally provided for forming a thin film photovoltaic device.

Abstract: Thin film photovoltaic devices including a first submodule and a second submodule are provided. In the device, a common insulation layer can be positioned over first submodule to extend from a joint bus bar to a first bus bar. A first lead can be electrically connected to the first bus bar, and a second lead can be electrically connected to the joint bus bar. A linking insulation layer can be positioned over the first submodule, the second submodule, and the joint bus bar such that the linking insulation layer extends from the first bus bar to the second bus bar. A conductive link can be electrically connected to the first bus bar and the second bus bar, but electrically isolated from the joint bus bar.

Abstract: Thin film photovoltaic devices are provided that include a first submodule and a second submodule. An insulation layer can be positioned over first submodule and second submodule such that the insulation layer extends from a first bus bar to a second bus bar. A conductive link can be positioned on the insulation layer and electrically connected to the first bus bar and the second bus bar. An encapsulation substrate can be positioned over the first submodule and the second submodule. A first prong can extend through a first aperture defined in the encapsulation substrate to contact the conductive link to establish an electrical connection thereto, and a second prong can extend through a second aperture defined in the encapsulation substrate to contact the joint bus bar to establish an electrical connection thereto.

Abstract: A solar cell includes a first electrode layer, a P-type silicon layer, an N-type silicon layer, a second electrode layer, and a reflector. The first electrode layer, the P-type silicon layer, the N-type silicon layer, and the second electrode layer are arranged in series side by side along a first direction and in contact with each other, thereby cooperatively forming a integrated structure. A P-N junction is formed near an interface between the P-type silicon layer and the N-type silicon layer. The integrated structure has a first surface substantially parallel to the first direction and a second surface opposite to the first surface. The first surface is used as a photoreceptive surface to directly receive incident light. The reflector is located on the second surface of the integrated structure.

Abstract: A connection device is provided for connecting an electric component into a current path. The connection device comprises a housing having a locking means for locking the housing onto a busbar, a pivotable holding means, into which the electric component can be inserted and connected into the current path by pivoting the holding means; and a terminal clamp, which is connected directly, via the electric component which is connected into the current path, to at least one spring contact, which is provided in the housing and contacts the busbar when the housing is locked on.

Abstract: A solar cell module includes a plurality of solar cells including a photoelectric conversion unit, and an electrode which is formed on the surface of the photoelectric conversion unit; a wiring member that electrically connects the plurality of solar cells; and a resin adhesive that adheres the solar cells and the wiring member. Non-contiguous regions of the resin adhesive are present between the wiring member and the solar cells.

Abstract: Photovoltaic (PV) devices employing layers of semiconducting carbon nanotubes as light absorption elements are disclosed. In one aspect a layer of p-type carbon nanotubes and a layer of n-type carbon nanotubes are used to form a p-n junction PV device. In another aspect a mixed layer of p-type and n-type carbon nanotubes are used to form a bulk hetero-junction PV device. In another aspect a metal such as a low work function metal electrode is formed adjacent to a layer of semiconducting nanotubes to form a Schottky barrier PV device. In another aspect various material deposition techniques well suited to working with nanotube layers are employed to realize a practical metal-insulator-semiconductor (MIS) PV device. In another aspect layers of metallic nanotubes are used to provide flexible electrode elements for PV devices. In another aspect layers of metallic nanotubes are used to provide transparent electrode elements for PV devices.

Abstract: Provided are a cam turntable (2), a sun-tracking device equipped with the cam turntable (2) and a control method for the device. The sun-tracking device comprises a support mechanism for mounting a photovoltaic assembly (1), and an azimuth driving device, which is a cam turntable (2), fixed on the support mechanism for adjusting the azimuth thereof. The sun-tracking device adjusts the azimuth of the support mechanism for mounting the photovoltaic assembly (1) by utilizing the cam turntable (2) as the azimuth driving device, so that harmful incoming impact loads on the sun-tracking device as a whole are transferred into friction forces which are then transferred and alleviated, therefore it is advantageous in avoiding damages to subsequent driving devices due to the excessively large impact loads, especially in protecting the precision of a control worm gear (2-12) from being affected, which in turn extends the service life of the sun-tracking device as a whole.