Abstract: This invention relates to a visible image unit identification code structure using a spatial visible image forming device. A spatial visible image forming device is used that includes: a laser source that emits a laser beam in an invisible region; a scanning means that scans the laser beam; a condensing optical system that condenses the laser beam to a drawing scheduled point in a space so as to cause plasma emission of a gas; and a control means that controls oscillation timing of the laser source and scanning timing of the scanning means so as to generate the plasma emission at the drawing scheduled point in a time series and draw a visible image as an afterimage phenomenon of the plasma emission.

Abstract: This invention relates to a visible image unit identification code structure using a spatial visible image forming device. A spatial visible image forming device is used that includes: a laser source that emits a laser beam in an invisible region; a scanning means that scans the laser beam; a condensing optical system that condenses the laser beam to a drawing scheduled point in a space so as to cause plasma emission of a gas; and a control means that controls oscillation timing of the laser source and scanning timing of the scanning means so as to generate the plasma emission at the drawing scheduled point in a time series and draw a visible image as an afterimage phenomenon of the plasma emission.

Abstract: The present invention relates to a device for forming a visible image which can draw a two-dimensional or a three-dimensional visible image without having a scanning locus of a laser beam recognized. The device for forming a visible image of the present invention is comprised of a laser source irradiating a laser beam in an invisible region, a scanning means for scanning said laser beam two-dimensionally or three-dimensionally, a condensing optical system for condensing said laser beam to a drawing scheduled point in the air for plasma emission of a gas, and a controlling means for controlling oscillation timing of said laser source and scanning timing of said scanning means so as to generate said plasma emission at said drawing scheduled point in a time series and for drawing a visible image as a residual image phenomenon of the plasma emission.

Abstract: The present invention relates to a device for forming a visible image which can draw a two-dimensional or a three-dimensional visible image without having a scanning locus of a laser beam recognized. The device for forming a visible image of the present invention is comprised of a laser-source irradiating a laser beam in an invisible region, a scanning means for scanning said laser beam two-dimensionally or three-dimensionally, a condensing optical system for condensing said laser beam to a drawing scheduled point in the air for plasma emission of a gas, and a controlling means for controlling oscillation timing of said laser source and scanning timing of said scanning means so as to generate said plasma emission at said drawing scheduled point in a time series and for drawing a visible image as a residual image phenomenon of the plasma emission.

Abstract: The present invention relates to a device for forming a visible image which can draw a two-dimensional or a three-dimensional visible image without having a scanning locus of a laser beam recognized. The device for forming a visible image of the present invention is comprised of a laser source irradiating a laser beam in an invisible region, a scanning means for scanning said laser beam two-dimensionally or three-dimensionally, a condensing optical system for condensing said laser beam to a drawing scheduled point in the air for plasma emission of a gas, and a controlling means for controlling oscillation timing of said laser source and scanning timing of said scanning means so as to generate said plasma emission at said drawing scheduled point in a time series and for drawing a visible image as a residual image phenomenon of the plasma emission.

Abstract: An assist drive assembly for adjusting tension in a web generated when the web is moved over a roller in a contacting relationship therewith. A plurality of north and south pole elements are disposed about the roller. A controller is coupled to a magnetic pole sensor and an magnetic coil. The magnetic pole sensor and magnetic coil are disposed adjacent the north and south pole elements such that, when, during rotation of the roller in a direction of rotation, as a result of the web moving over the roller, the magnetic pole sensor observes a south pole element a first signal is generated that actuates the controller to energize the magnetic coil to generate a north pole field that attracts an immediately adjacent south pole element thereby imparting a torque to the roller in a direction of rotation of the roller.

Abstract: The present invention relates to a device for forming a visible image which can draw a two-dimensional or a three-dimensional visible image without having a scanning locus of a laser beam recognized. The device for forming a visible image of the present invention is comprised of a laser source irradiating a laser beam in an invisible region, a scanning means for scanning said laser beam two-dimensionally or three-dimensionally, a condensing optical system for condensing said laser beam to a drawing scheduled point in the air for plasma emission of a gas, and a controlling means for controlling oscillation timing of said laser source and scanning timing of said scanning means so as to generate said plasma emission at said drawing scheduled point in a time series and for drawing a visible image as a residual image phenomenon of the plasma emission.

Abstract: A humidifier includes a base defining an evaporation cavity, a water supply is supported on the base and has a discharge opening communicating with the evaporation cavity and is adapted to maintain a given level of water therein. A humidification unit is removably mounted on the base and includes a heating element projecting into the cavity with a wicking sleeve surrounding the element and into the cavity to wick water therefrom. Energization of the heating element causes evaporation of the water that has been wicked from the cavity. The resulting vapor is discharged through an exhaust grill above the cavity.