摘要:
A 3D object fabrication method implemented in a fabrication system includes the following steps. A digital object model is retrieved. Sections of the digital object model are respectively printed on plural pieces of plane material. The pieces of plane material are combined to form a physical 3D object of the digital object model.
摘要:
A 3D object fabrication method implemented in a fabrication system includes the following steps. A digital object model is retrieved. Sections of the digital object model are respectively printed on plural pieces of plane material. The pieces of plane material are combined to form a physical 3D object of the digital object model.
摘要:
A portable electronic device switches between antennas in order to decrease specific absorption rate (SAR). When the portable electronic device performs wireless communication, a sensor detects a distance between an object under test and the portable electronic device. The sensor sends a message to a control circuit, and the control circuit switches to a different antenna to decrease SAR.
摘要:
An organic electroluminescent device comprises an anode disposed on a substrate, an organic electroluminescent layer disposed on the anode and a cathode disposed on the organic electroluminescent layer, wherein the organic electroluminescent layer comprises a compound represented by the formula (1) below
摘要:
A safety device for a toy gun has first and second firing pins which can block movement of a trigger. The firing pins are electro-magnetically operated. The first firing pin is normally in a position which blocks movement of the trigger and the second firing pin is normally in a position which allows movement of the trigger. A power source is connected to the first firing pin by a switch so that trigger movement is blocked by the first firing pin until the switch is activated. The switch also connects the power source to a photo-electric switch which includes a light emitter and a light sensor. The second firing pin is connected to the power source by the photo-electric switch so that movement of the trigger is blocked by the second firing pin only when the photo-electric switch is closed. The photo-electric switch detects the presence of a target within a preset range of the toy gun and closes if a target is detected. In this way, the toy gun can be fired only if the first switch is closed and the photo-electric switch is open, i.e. no target detected in range. A preferred embodiment includes a lamp in series with the first firing pin and a buzzer in series with the second firing pin. The photo-electric switch is preferrably infra-red.
摘要:
Laser engravers with a masking mechanism comprise a machine body, a laser-engraving mechanism inside the machine body, a working platform, and an exhauster. The laser-engraving mechanism includes a lens-cart rail that moves back and forth along a working track. The exhauster includes air outlets behind the working platform. The masking mechanism, which includes a reelable curtain-sheet, is installed above the air outlets so that while processing, the curtain-sheet is reeled out above the working platform and an air induction channel is formed to increase the working efficiency of the exhauster.
摘要:
Laser engravers with a masking mechanism comprise a machine body, a laser-engraving mechanism inside the machine body, a working platform, and an exhauster. The laser-engraving mechanism includes a lens-cart rail that moves back and forth along a working track. The exhauster includes air outlets behind the working platform. The masking mechanism, which includes a reelable curtain-sheet, is installed above the air outlets so that while processing, the curtain-sheet is reeled out above the working platform and an air induction channel is formed to increase the working efficiency of the exhauster.
摘要:
A printing module for use in a large ink-jet printer includes a frame and an ink-jet unit secured to the frame. The ink-jet unit has a group of ink cartridges to emit droplets of ink onto a media to be printed. At least one irradiator is disposed at a side of the frame for casting a beam of ultraviolet light downward to irradiate and dry the droplets of ink emitted on the media, and means is provided for adjusting the position of the irradiator in forward and backward directions with respect to the frame. The printing module can be used in the large ink-jet printer to produce a sharp print.
摘要:
An adjusting device for adjusting printing heads of inkjet printing machine includes a base connected to a printing unit and a plurality of printing assemblies are respectively connected to the base. Each printing assembly has a printing head connected thereto and a connection board is connected to an end wall of each printing assembly. Three adjusting members extend through the end board and contact against the end wall, and the three adjusting members are located at three peaks of an imaginary right triangle on the end board so as to adjust the printing head in different directions. A fourth adjusting member extends through the end board and is fixed to the end wall. The fourth adjusting member is located at a center of weight of the imaginary right triangle.
摘要:
An organic electroluminescent material is for using in a light-emitting layer or a hole-transporting light-emitting layer of an organic electroluminescent device. The organic electroluminescent material is of the formula (1): wherein R1, R2, R3, R4 are one selected from the group consisting of hydrogen atom, substituted or unsubstituted alkyl group having 1 to 6 carbon atoms and substituted or unsubstituted aryl group having 6 to 40 carbon atoms, Ar1, Ar2, Ar3, Ar4 are a substituted or unsubstituted aryl group having 6 to 40 carbon atoms.