摘要:
A circularly polarized antenna includes a dielectric substrate, a closed-loop radiating element, a micro-strip radiating element, a feeding element, and a grounding element. The closed-loop radiating element is formed on a first surface of the dielectric substrate. The micro-strip radiating element is formed on the first surface of the dielectric substrate, is surrounded by the closed-loop radiating element, and is coupled to the closed-loop radiating element. The feeding element is formed on the first surface of the dielectric substrate, is surrounded by the closed-loop radiating element, and is coupled to the micro-strip radiating element. The grounding element is formed on a second surface of the dielectric substrate.
摘要:
An electrical connector includes a terminal-mounting seat configured with receiving spaces. Each of conductive members has a connecting base connected to a contact block that is disposed in the respective receiving space. Each of conductive terminals has a lower clamping end portion abutting against and contacting electrically and movably the contact block of the respective conductive member, and an upper contact end portion extending outwardly of the terminal-mounting seat via a respective one of guiding grooves in a top surface of the terminal-mounting seat. Upon depression by an electronic device, the resilient conductive terminals deform to provide a restoring force to bias the upper contact end portion thereof upwardly to contact electrically a respective one of electrical contacts of the electronic device.
摘要:
A third-axis input device of a mouse comprises a hollow roller stage mounted on a base of the mouse and a hollow roller pivotally arranged on the mouse's roller stage. The roller projects from the cover of the mouse. The roller has a closed lateral surface and an open lateral surface, defining an accommodation space therein. A ring is formed on an inner side of the closed lateral surface and extends within the accommodation space. The ring has a plurality of equally spaced apart tooth-shaped strips formed on a surface thereof to function as an encoder wheel. The encoder wheel is mounted with respect to an optical means having a case, a circuit board connected to the primary circuit board of the mouse, and an infrared transceiver.
摘要:
The present invention provides a multiple-wheel input device comprising a positioning plate, two light-penetrating type encode wheels, a circuit board, and two hollow rollers. The light-penetrating type encode wheel is connected pivotally to both sides of the positioning plate. A gap hole is disposed at the central part of the bottom edge of the positioning plate. Two inclined surfaces are formed at the top edge of the gap hole. An arched board is installed at each side of the gap hole. A fixing bar is installed adjoining to each side of the bottom edge of the gap hole to join the circuit board. A light-emitting device is installed at the central part of the circuit board. A light-receiving device is installed at each side of the light-emitting device. The hollow roller is connected pivotally to the circumference of one side of each encode wheel and outside the two arched boards. When the roller is turned, the encode wheel is jointly turned synchronously. The light emitted from the light-emitting device is reflected by the inclined surface, penetrates the transparent portion of the encode wheel, and is received by the corresponding light-receiving device. The light variation signals are converted to the current variation signals of the light-receiving device. The movements in the X-Y coordinates of the input device (mouse) can thus be known according to the output signals of the encode wheel.
摘要:
A photo-detector based calculating means having a grating wheel with integrated lenses is provided. The photo-detector based calculating means having a grating wheel with integrated lenses includes a light source (1), a grating wheel (2), and a photo-detector (3), with the light emitted from the light source (1) impinging upon an input plane of the grating wheel (2). The photo-detector (3) has a set of photo-sensitive chips (31) to receive the working light beams emitted from the grating wheel (2). The input plane of the grating wheel (2) has a ring-shaped lens (24) to focus the light emitted from the light source (1). The output plane (23) of the grating wheel (2) has a plurality of tooth-shaped lenses (25), each projecting perpendicularly to the ring-shaped lens (24), which can focus the working beams after the working beams pass through the output plane (23), thus minimizing interference.