摘要:
An electronic device paired with an infrared remote control, includes a display screen having a display area, at least one infrared emitter, at least one infrared receiver, a prism and a processing unit. A prism is adjacent to the at least one infrared receiver for converging the infrared rays from the at least one infrared emitter and the infrared remote control to the at least one IR receiver. A processing unit is for activating and then deactivating the infrared emitters one after another, identifying operations of a user on the display area by analyzing the interception of the infrared rays emitted from each of the infrared emitters, identifying operations of a user according to the infrared signals from the infrared remote control and executing corresponding functions associated with the operations of the user.
摘要:
A combined bearing includes a main body (10) and a mating member (30). The main body is generally cylindrical, with an axial hole (16) and a cutout (18) defined therein. The cutout is generally semi-cylindrical and spans from an outer surface (14) of the main body to the axial hole of the main body. The mating member has a same configuration as the cutout of the main body and can be inserted into the cutout to provide a complete cylinder having the axial hole therein. The main body and the mating member are made of different materials, one is metal alloy which is capable of impregnating lubricant oil therein, the other is ceramic having high hardness. Thus, the combined bearing may combine the advantages of an oil impregnated bearing and the advantages of a ceramic bearing.
摘要:
A ceramic cutting tool (100) is for high speed cutting of light, thin and soft materials. The ceramic cutting tool includes an upper blade (10) and a lower blade (20) both made of ceramic material. The upper and lower blades therefore possess extremely high hardness, and excellent wear resistance and heat resistance. This increases an operating lifetime of the ceramic cutting tool. Furthermore, the lower blade can alternatively be a lower blade assembly (30). The lower blade assembly includes a metal base (32), and a ceramic edge insert (31) detachably mounted in the metal base. If the ceramic edge insert becomes worn or is damaged, it can be easily replaced by a new ceramic edge insert. There is no need to replace the metal base.
摘要:
A light directing member for an infrared touch screen device is provided. The infrared touch screen includes a touch screen having a first side and an opposing second side, an infrared emitter for emitting infrared light beams toward the light directing element, and a plurality of infrared receivers arranged along the first side of the touch screen. The light directing member is positioned at the second side of the touch screen, and includes an outwardly curved surface facing the infrared emitter and a plurality of reflective slanted surfaces. The curved surface collimates the infrared light beams emitted from the infrared emitter into parallel infrared light beams. The plurality of reflective slanted surfaces are aligned with the respective infrared receivers, and for receiving and reflecting corresponding portions of the collimated parallel beams to the respective infrared receivers. A related device is also provided.
摘要:
A ceramic cutting tool (100) is for high speed cutting of light, thin and soft materials. The ceramic cutting tool includes an upper blade (10) and a lower blade (20) both made of ceramic material. The upper and lower blades therefore possess extremely high hardness, and excellent wear resistance and heat resistance. This increases an operating lifetime of the ceramic cutting tool. Furthermore, the lower blade can alternatively be a lower blade assembly (30). The lower blade assembly includes a metal base (32), and a ceramic edge insert (31) detachably mounted in the metal base. If the ceramic edge insert becomes worn or is damaged, it can be easily replaced by a new ceramic edge insert. There is no need to replace the metal base.
摘要:
An electronic device paired with an infrared remote control, includes a display screen having a display area, at least one infrared emitter, at least one infrared receiver, a prism and a processing unit. A prism is adjacent to the at least one infrared receiver for converging the infrared rays from the at least one infrared emitter and the infrared remote control to the at least one IR receiver. A processing unit is for activating and then deactivating the infrared emitters one after another, identifying operations of a user on the display area by analyzing the interception of the infrared rays emitted from each of the infrared emitters, identifying operations of a user according to the infrared signals from the infrared remote control and executing corresponding functions associated with the operations of the user.
摘要:
A color temperature adjusting system includes a processing unit, a constant-current drive unit, and an light emitting unit (LED) unit including two unmatched LED modules with different basic color temperatures. A table records a relationship between coefficient values and current values for the current(s) flowing through the two LED modules. The processing unit selects one of a number of predetermined formulas to calculate the coefficient value by comparing a desired value with a threshold value, and further determines the current values according to the calculated coefficient value listed in a table. The constant-current drive unit includes two drive module generating modulating signals to adjust the respective values of the current flowing through the two LED modules to match the determined current values, thereby adjusting the color temperature value of the LED unit to the desired level. A related method is also provided.
摘要:
A color temperature adjusting system includes a processing unit, a constant-current drive unit, and an light emitting unit (LED) unit including two unmatched LED modules with different basic color temperatures. A table records a relationship between coefficient values and current values for the current(s) flowing through the two LED modules. The processing unit selects one of a number of predetermined formulas to calculate the coefficient value by comparing a desired value with a threshold value, and further determines the current values according to the calculated coefficient value listed in a table. The constant-current drive unit includes two drive module generating modulating signals to adjust the respective values of the current flowing through the two LED modules to match the determined current values, thereby adjusting the color temperature value of the LED unit to the desired level. A related method is also provided.
摘要:
An environmentally friendly computer enclosure (20) includes a panel having a vent; and a photocatalyst device (1) mounted on the vent. The photocatalyst device includes an ultraviolet light source device (12), and a filter net (13) with a photocatalyst layer coated thereon. The photocatalyst layer preferably comprises titanium dioxide. The photocatalyst device is mounted on an outside of the vent. The ultraviolet light source device comprises at least one ultraviolet lamp tube or at least one ultraviolet light emitting diode. Soiled air output from the computer enclosure passes through the filter net that is coated with the photocatalyst layer of titanium dioxide. The soiled air is thus purified before being dissipated into the ambient environment.
摘要:
A direct backlight module includes a light optical plate, a plurality of point light sources, and a reflective member. The optical plate includes a light input surface and a light output surface opposite to the light output surface. The point light sources are positioned between the optical plate and the reflective member. The reflective element forms a plurality of curved reflective surfaces corresponding to the point light sources. Each curved reflective surface is a substantially spherical depression, and each point light source corresponds to a center of each spherical depression defined by one of the curved reflective surfaces.