A gel polish curing assembly includes a housing that has a top wall, a bottom wall and a perimeter wall extending between the top and bottom walls. The perimeter wall includes a back wall, a first lateral wall and a second lateral wall. A front side of the housing is open. A plurality of light emitters is mounted within the housing. At least some of the light emitters are positioned on a bottom side of the top wall and are directed downwardly toward the bottom wall. The light emitters emits light having a wavelength that is between 340 and 380 nanometers.

A gel polish curing assembly includes a housing that has a top wall, a bottom wall and a perimeter wall extending between the top and bottom walls. The perimeter wall includes a back wall, a first lateral wall and a second lateral wall. A front side of the housing is open. A plurality of light emitters is mounted within the housing. At least some of the light emitters are positioned on a bottom side of the top wall and are directed downwardly toward the bottom wall. The light emitters emits light having a wavelength that is between 340 and 380 nanometers.

An electronic device includes a moving body, first and second sensors, and a processor. The first sensor detects the moving body passing a reference position while moving along a first axis. The second sensor outputs a second phase signal of a second phase according to the moving body moving along the first axis, wherein the second phase is shifted from a first phase. In a setting mode, the processor stores information data indicating a level of the second phase signal at a time when the first sensor detects the reference position. In an operation control mode, the processor sets, as a position pertaining to an origin on the first axis, a position of an earliest edge of the first phase after the second phase signal switches from a level identical with the level stored in the setting mode to a different level after the first sensor detects the reference position.

An electronic device includes a moving body, first and second sensors, and a processor. The first sensor detects the moving body passing a reference position while moving along a first axis. The second sensor outputs a second phase signal of a second phase according to the moving body moving along the first axis, wherein the second phase is shifted from a first phase. In a setting mode, the processor stores information data indicating a level of the second phase signal at a time when the first sensor detects the reference position. In an operation control mode, the processor sets, as a position pertaining to an origin on the first axis, a position of an earliest edge of the first phase after the second phase signal switches from a level identical with the level stored in the setting mode to a different level after the first sensor detects the reference position.

A nail polishing and drying device is provided. The nail polishing and drying device includes: a hand mould used for keeping a hand in a stable manner, a slipper located on the hand mould and is adjusted according to a finger dimension by moving forward backward in a horizontal manner, a nail detecting sensor placed within the slipper and determines the finger housing to send a nail polish by informing a system whether a finger is inside or not, a main hose transferring the nail polish to a hose separator acting as a distributor by pulling the nail polish from a nail polish chamber; an air drying or a UV drying system consisting of extra hoses transferring the nail polish coming from the main hose separately to spraying nozzles by being connected to the hose separator and applies the nail polish to five fingers simultaneously.

A nail polishing and drying device is provided. The nail polishing and drying device includes: a hand mould used for keeping a hand in a stable manner, a slipper located on the hand mould and is adjusted according to a finger dimension by moving forward backward in a horizontal manner, a nail detecting sensor placed within the slipper and determines the finger housing to send a nail polish by informing a system whether a finger is inside or not, a main hose transferring the nail polish to a hose separator acting as a distributor by pulling the nail polish from a nail polish chamber; an air drying or a UV drying system consisting of extra hoses transferring the nail polish coming from the main hose separately to spraying nozzles by being connected to the hose separator and applies the nail polish to five fingers simultaneously.

A ventilating and sanitizing lamp for use in a nail salon with a visible light source and a germicidal light source in a hood connected to a elongated hollow member. Heat from the visible light source effects convective air flow from the hood out of the elongated hollow member. An impeller positioned in the elongated hollow member above the visible light source and below the germicidal light source assists the convective air through the elongated hollow member. Air laden with dust and chemicals is pulled into the hood and out of a nail technician's breathing zone together with any bacteria, molds and viruses which are deactivated by the germicidal light source before the air is expelled above the heads of the operator and his or her client.

A ventilating and sanitizing lamp for use in a nail salon with a visible light source and a germicidal light source in a hood connected to a elongated hollow member. Heat from the visible light source effects convective air flow from the hood out of the elongated hollow member. An impeller positioned in the elongated hollow member above the visible light source and below the germicidal light source assists the convective air through the elongated hollow member. Air laden with dust and chemicals is pulled into the hood and out of a nail technician's breathing zone together with any bacteria, molds and viruses which are deactivated by the germicidal light source before the air is expelled above the heads of the operator and his or her client.

Disclosed is a printing device including: a finger stage on which a finger corresponding to a nail is placed, the nail being a printing target; a carriage which has at least one reflector; and a camera which obtains at least an image of the nail of the finger placed on the finger stage from an upper direction and an image of the nail of the finger reflected in the reflector.

A gel polish curing assembly includes a housing that has a top wall, a bottom wall and a perimeter wall extending between the top and bottom walls. The perimeter wall includes a back wall, a first lateral wall and a second lateral wall. A front side of the housing is open. A plurality of light emitters is mounted within the housing. At least some of the light emitters are positioned on a bottom side of the top wall and are directed downwardly toward the bottom wall. The light emitters emits light having a wavelength that is between 340 and 380 nanometers.