摘要:
An optical communication apparatus has the transmission/reception modules which perform conversion of a light signal from an LED into an electric signal and vice versa. A movable shutter is located above the monitoring window of a light guide so as to allow prevention of crosstalk. A monitoring light-receiving element can be included to allow monitoring of the status of the light signal. A signaling device such as an indicator, a buzzer or the like can be operated in accordance with an output signal from the monitoring light-receiving element.
摘要:
In a laser apparatus, when no voltage is applied to optical modulator, a first linearly polarized component of a laser beam which passes through a polarization control mirror causes a laser oscillation in a first laser resonator and a laser beam is output from a second reflecting mirror. When a pulsed voltage is applied to the optical modulator, a second linearly polarized component of the laser beam reflected by the polarization control mirror passes through the optical modulation means and causes a Q-switched laser oscillation in a second laser resonator. In this case, the first linearly polarized component passes through the polarization control mirror and is output from the second reflecting mirror. This technique makes it possible to combine a Q-switched laser apparatus with a non-Q-switched laser apparatus without causing the power of the laser beam to exceed a maximum allowable limit that an electrooptical modulator can handle.
摘要:
An aseismatic mount for exhibition of articles comprising a lower mount frame, a middle mount frame, an upper mount frame for mounting exhibition articles thereon, aseismatic mount having rollers integrally on an axis each of which is shifted eccentrically to each other in up and down directions, said aseismatic mounts being interposed between the lower mount frame and the middle mount frame at plural positions, and further aseismatic mounts having the same construction as the aseismatic mounts, and interposed between the middle mount frame and the upper mount frame.
摘要:
A structurally reinforced panel for a vehicle body includes an injection molded resin panel having an integrally molded hollow reinforcement truss extending across the panel.
摘要:
A fabrication process is provided for semiconductor devices having a crystalline semiconductor film formed on a substrate, the semiconductor film being an active layer of a transistor and being mainly composed of silicon, and includes at least an underlevel protection layer fabrication step of forming a silicon oxide film as an underlevel protection layer on the substrate; a first processing step of forming a semiconductor film, which is mainly composed of silicon, on the underlevel protection layer; and a second processing step of irradiating a pulsed laser light on the semiconductor film. The semiconductor film is irradiated by a pulsed laser, the wavelength of the pulsed laser light is between 370 and 710 nm. As a result, using a low temperature process, high performance thin film semiconductor devices can be produced simply and reliably.
摘要:
The present invention relates to provide a decorative wear resistant lithium silicate and sodium silicate based surface coating for use on concrete, timber or steel, comprising a coat of a high viscosity lithium silicate and sodium silicate solution incorporating a non reactive or inert filler and a pigment colouring matter, and after the coat is touch dry, the coat is treated with flame of gases directly to make fast reaction and harden the coat.