Abstract: An active noise control (ANC) circuit is used for generating an anti-noise signal, and has a plurality of filters including at least one first filter and at least one second filter. The at least one first filter generates at least one first filter output, wherein each of the at least one first filter has at least one non-static filter and at least one static filter connected in a series fashion. The at least one second filter generates at least one second filter output, wherein each of the at least one second filter has at least one adaptive filter. The anti-noise signal is jointly controlled by the at least one first filter output and the at least one second filter output. The at least one first filter and the at least one second filter are connected in a parallel fashion.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A biodegradable hairpin contains: a first clip, a second clip, and a C-shaped flexible retainer. The C-shaped flexible retainer includes a first leg, a second leg, an opening, a peak portion, a first shoulder, and a second shoulder. An inner wall of the C-shaped flexible retainer extends to the first leg and the second leg from the peak portion along a parabolic track, such that a thickness of a cross section of the peak portion is 1.666 times more than a thickness of a cross section of the first leg and a thickness of a cross section of the second leg. The biodegradable hairpin is made of any one or a combination of at least two of Bio-Polybutylene Succinate (PBS), Polylactic acid (PLA), D-polylactide (PDLA), toughener, and nucleating agent, such that the biodegradable hairpin has ductility, malleability, and toughness.

Abstract: A hair comb contains: a handle, a stepped body extending from a connection segment of the handle, multiple long columns and multiple short column which are separately arranged on the stepped body. A height of a respective one long column is different a height of a respective one short column. The stepped body includes an external surround portion, a middle surround portion, and an internal surround portion which have different heights respectively. Multiple gaps are defined among the external surround portion, the middle surround portion, and the internal surround portion. The multiple gaps includes multiple support portions formed in a vertical line so that the external surround portion, the middle surround portion, and the internal surround portion define the stepped body.

Abstract: A method for producing an annular hair band includes providing an elongated, elastic woven strip having transversely extending yarns interleaved between longitudinally extending yarns. Two ends of the woven strip are overlapped. An abutting area of the two ends is greater than a cross sectional area of an end face of each end. Two non-planar dies are used to heat and compress overlapped sections of the two ends. The yarns of one of the two ends and mesh holes of another of the two ends are fused together. The two ends are flattened to form protrusions or grooves on an upper face and a lower face of a non-planar engaged portion of the two ends, thereby forming the annular hair band. The two non-planar dies are opened to remove the annular hair band for cooling. The annular hair band is capable of withstanding a stretching force greater than 2 kg.

Abstract: A hair dryer includes a body having a housing with an air outlet. A heating and blowing device is mounted in the housing and is configured to guide in ambient cold air, to heat the cold air, and to guide heated air out of the housing via the air outlet. A control device controls operation of the heating and blowing device. An annular cap is disposed at the air outlet and includes a central portion having a passageway. An atomization device includes an atomizer and a chamber. The atomizer is disposed on the annular cap and includes a spray hole for ejecting a spray towards the passageway. The atomizer is electrically connected to the control device of the body. The chamber is located in the body or the annular cap, receives a liquid, and guides the liquid to the atomizer.

Abstract: A concentrator nozzle for a hair dryer contains: a wind collector and a rotatable operation member. The wind collector includes a connection groove formed on a circular bottom thereof. An upper end of the rotatable operation member includes a cutout extending to a lower end of the rotatable operation member. The connection groove is connected with a coupling segment on a body of the hair dryer so as to receive airflow produced by the hair dryer, and the wind collector drives the rotatable operation member to rotate so as to produce a vortex flow for curling the user's hairs fixed on the concentrator nozzle. Then, the hair dryer blows hot air to the user's hairs, thus forming the user's hairs in a desired curling shape.

Abstract: A concentrator nozzle for a hair dryer contains: a wind collector and a rotatable operation member. The wind collector includes a connection grove formed on a circular bottom thereof. An upper end of the rotatable operation member includes a cutout extending to a lower end of the rotatable operation member. The connection grove is connected with a coupling segment on a body of the hair dryer so as to receive airflow producing from the hair dryer, and the wind collector drives the rotatable operation member to rotate so as to produce vortex flow for curling the user's hairs 5 fixed on the concentrator nozzle. Then, the hair dryer blows hot air to the user's hairs, thus forming the user's hairs in a desired curling shape.

Abstract: A hair comb contains: a handle, a stepped body extending from a connection segment of the handle, multiple long columns and multiple short column which are separately arranged on the stepped body. A height of a respective one long column is different a height of a respective one short column. The stepped body includes an external surround portion, a middle surround portion, and an internal surround portion which have different heights respectively. Multiple gaps are defined among the external surround portion, the middle surround portion, and the internal surround portion. The multiple gaps includes multiple support portions formed in a vertical line so that the external surround portion, the middle surround portion, and the internal surround portion define the stepped body.

Abstract: A hair clamping device includes a clamping member and a stretching member. The clamping member is a flexible arcuate member including first and second engaging ends releasably engaged with each other. The clamping member is in an extended state when the first and second engaging ends disengage from each other. The clamping member is in a clamping state when the first and second ends engage with each other. The clamping member in the clamping state defines an annular through-hole in a central portion thereof. The stretching member has an outer diameter smaller than a diameter of the through-hole of the clamping member in the clamping state. The stretching member includes an outer surface connected to an inner face of the clamping member. A hair clamping slot is defined between the inner face of the clamping member and the outer surface of the stretching member in the clamping state.

Abstract: A hair styling tool capable of creating an appearance of thicker hair generally includes a padding means and a braiding means located below the padding means. The padding means includes a frame and a base. The frame is formed of an upper curved bar, a lower curved bar, and an outwardly curved bar, all of which are joined together at their ends. The padding means can be covered with a middle section of user's hair to create an appearance of thicker hair for the user. The braiding means can be fitted with alternating sections of the user's hair to create a braid hairstyle. The user's remaining hair can be fixed in a positioning space of the braiding means without additional hair fasteners. These features render the present invention useful and provide the user with visual beauty.

Abstract: An improved hair dryer includes a fan unit and a heating unit to generate a linear heated air current which can mix with outside cold air to obtain a rotational air current of moderate temperature and to increase the capability of penetrating a user's hair. Therefore, the air provided by the hair dryer would not become both hot and dry, but maintain an ideal, moderate temperature suitable for users, so that users may feel more comfortable while dressing their hairs. Furthermore, the increased capability of penetrating a user's hair allows the hair to be dried more quickly.

Abstract: A disposable hair care member contains: a body made of non-woven fabric which is absorbent, and the body includes essences with hair care ingredients. When having hair care, the body is spread and is wrapped around user's hairs, then the body is heated by using an external heat source so that the user's hairs absorb the essences of the body, thereafter the body is discarded after having the hair care, thus having quick hair care and personal hygiene.