Abstract: A device is provided to generate a three-dimensional (3D) real image. A display panel is divided into several sub-areas for emitting scenes. Through a projecting lens-array unit, the scenes enter a fusion lens unit to form a real image of light field at a position beyond common barrier. Through an eyepiece unit, the image is emitted to human eye. Thus, the present invention provides a device for near-eye viewing, which reduces existing human-eye vergence accommodation conflict (VAC) in most augmented reality and mixed reality devices. Therein, the display of near-eye light field is a process of light-field reproduction, which merges the scenes and reduces aberration.

Abstract: A method for preparing urea ammonium nitrate solution from waste nitric acid after stripping tin from circuit board includes: causing the waste nitric acid after stripping tin and the ammonia water to undergo neutralizing and precipitating reaction through acid-base neutralization, filtering, thereby obtaining tin-containing filter mud and a primary filtrate; adding iron powders into to the primary filtrate to initiate copper-iron replacement reaction, filtering, thereby obtaining iron-containing coarse copper powders and a secondary filtrate; adding hydrogen peroxide to the secondary filtrate, filtering, thereby obtaining an iron-containing sludge and a tertiary filtrate; adding a heavy metal capturing agent to the tertiary filtrate, filtering, thereby obtaining a heavy metal sludge and an ammonium nitrate solution; measuring a concentration of the ammonium nitrate solution, adding urea and liquid fertilizer corrosion inhibitor to obtain a urea/ammonium nitrate dilute solution, evaporating and concentrating

Abstract: A method for preparing urea ammonium nitrate solution from waste nitric acid after stripping tin from circuit board includes: causing the waste nitric acid after stripping tin and the ammonia water to undergo neutralizing and precipitating reaction through acid-base neutralization, filtering, thereby obtaining tin-containing filter mud and a primary filtrate; adding iron powders into to the primary filtrate to initiate copper-iron replacement reaction, filtering, thereby obtaining iron-containing coarse copper powders and a secondary filtrate; adding hydrogen peroxide to the secondary filtrate, filtering, thereby obtaining an iron-containing sludge and a tertiary filtrate; adding a heavy metal capturing agent to the tertiary filtrate, filtering, thereby obtaining a heavy metal sludge and an ammonium nitrate solution; measuring a concentration of the ammonium nitrate solution, adding urea and liquid fertilizer corrosion inhibitor to obtain a urea/ammonium nitrate dilute solution, evaporating and concentrating

Abstract: A shoe includes a shoe upper disposed on top of a shoe sole, a circuit board disposed in a heel portion of the shoe sole, one or more light members disposed in the front portion of the shoe sole, one or more further light member disposed in the rear portion of the shoe upper, one or more batteries coupled to the light members for energizing the light members, and a switch coupled between the battery and the light members for controlling the light members, the switch is disposed in the heel portion of the shoe sole and arranged for being depressed and actuated by a user. A manual switch may be coupled between the battery and the light members for selectively operating the light members.

Abstract: The invention provides a ribbonlike light illumination apparatus, comprising a ribbonlike member, a plurality of heat-dissipating fins, and a plurality of light devices. The ribbonlike member has a first surface and a second surface. The heat-dissipating fins are disposed on the first surface. The light devices are demountably mounted on the second surface. The ribbonlike light illumination apparatus of the invention may be installed in an advertisement box. A more uniform light source than conventional fluorescent lamps can be achieved by adjusting the distances between the light devices on the ribbonlike member. Besides, the ribbonlike light illumination apparatus of the invention has properties of longer life and saves more power than conventional fluorescent lamps.

Abstract: The present invention provides a digital torque control display that has external screw lines formed at the front end of the gun body and a torque adjuster is placed on it, and in the internal diameter of the torque adjuster has internal screw lines that can be used on the front end of the gun body; in addition, a through hole is placed in the center of the torque adjuster, and a rod is formed on both sides of the through hole, and the rod is connected to the first press, and one side of the first press is connected to a sensory displacement component, and the sensory displacement component is connected to a display, and the first press is connected to a spring, and the spring is different than one end of the first press that is connected to the second press, and the second press is driven by numbers of balls and an output axle, and one end of the output axle goes through the through hole, and a connecting hole is placed axially with a tool head; on the other end, it has clutch blade, and an input axle is pla

Abstract: The invention, relating to an internal, active, compensatory and method and device for the rotational main-shaft of a cutting tool with axial bias-and-swing, mainly applies an active technique to a gas-floating main-shaft to thereby control its bias-and-swing. A sensor at the exterior of the main-shaft directly measures the axial bias-and-swing of the cutting tool. Taking the measured data as feedback signals, the cutting point of the cutting tool is maintained at an axial positioning accuracy that is predetermined. Further, the invention is arranged with an electromagnetic controlling module to the mandrel's tail end at the interior of the main-shaft for taking non-contacting magnetic force to finely tune the axial position of the mandrel, such that an active compensatory function of the axial position of the cutting point of a cutting tool in action is achieved.

Abstract: A method of forming a laminated circuit is described as follows: designing the laminated circuit in computer, recording the circuit layout of the laminated circuit into a data file subject to a predetermined format, inputting the data file into the main control unit of a laminated circuit forming apparatus for conversion into sequential control signals to drive insulative material sprayer, conductive material sprayer, and impedance material sprayer to eject respective fluid insulative materials onto a platform at different times and locations subject to the sequential control signals, forming the desired laminated circuit having an insulative body, electric circuits and passive components in it.

Abstract: The invention, relating to an internal, active, compensatory and method and device for the rotational main-shaft of a cutting tool with axial bias-and-swing, mainly applies an active technique to a gas-floating main-shaft to thereby control its bias-and-swing. A sensor at the exterior of the main-shaft directly measures the axial bias-and-swing of the cutting tool. Taking the measured data as feedback signals, the cutting point of the cutting tool is maintained at an axial positioning accuracy that is predetermined. Further, the invention is arranged with an electromagnetic controlling module to the mandrel's tail end at the interior of the main-shaft for taking non-contacting magnetic force to finely tune the axial position of the mandrel, such that an active compensatory function of the axial position of the cutting point of a cutting tool in action is achieved.

Abstract: A method of forming a laminated circuit is described as follows: designing the laminated circuit in computer, recording the circuit layout of the laminated circuit into a data file subject to a predetermined format, inputting the data file into the main control unit of a laminated circuit forming apparatus for conversion into sequential control signals to drive insulative material sprayer, conductive material sprayer, and impedance material sprayer to eject respective fluid insulative materials onto a platform at different times and locations subject to the sequential control signals, forming the desired laminated circuit having an insulative body, electric circuits and passive components in it.

Abstract: A cutting force sensor for measuring the variation of cutting force in a cutting machine includes a screw shape body to serve as a locking screw in a turret of the machine. The sensor has a pair of strain gauges at one end of the sensor to measure and detect the cutting force variations of a cutting tool held by the turret and send the signals to a pair of Wheatstone Bridges located at another end of the sensor. The signals are then filtered, amplified and analyzed for monitoring the cutting tool wear and/or breakage condition. The sensor is located close to the cutting point and therefore can generate high S/N (Signal/Noise) ratio and produces more precise measurements. The sensor is of low cost and does not take additional space and can be readily used in an existing machine without requiring expensive structural changes.

Abstract: An air-jet driven dynamic balance test apparatus for testing the dynamic balance of minrotors with minimum interference from external vibration noise. The dynamic balance test apparatus comprise a resilient supporting steel sheet having a horizontal bottom portion fastened to a base and an elongated upright body portion extended upwardly from the horizontal bottom portion to carry the sample to be tested. An air-jet generating device is provided to produce a continuous stream of compressed air for rotating the sample about its central axis. The resilient supporting steel sheet contains a resilient section for increasing sensitivity of said test apparatus. The resilient supporting steel sheet contains a resilient section, which can be the resilient steel sheet itself or in the form of a row of through holes or a corrugated section. A detector is mounted on the resilient supporting steel sheet to detect the vibration as the sample is being rotated during testing.