摘要:
It is an object of the invention to provide a vehicle alarm signal generation device which can realize the reduction of the consumption of power without unstabilizing the intruder detect operation. The vehicle alarm signal generation device includes a supersonic sensor which comprises a supersonic transmitter and a supersonic receiver. The supersonic transmitter radiates supersonic waves in the interior of a vehicle and the radiated supersonic waves are received by the supersonic receiver. If any person intrudes on the vehicle interior, then there is produced a difference between the frequencies of the radiated and received supersonic waves due to the Doppler effect generated responsive to the movements of the intruder, so that a beat frequency signal corresponding to the frequency difference is included in a signal received by the supersonic receiver. The beat frequency signal is integrated by an integrating circuit and is then converted into a voltage signal. A control circuit is arranged such that it generates an alarm signal when the voltage signal arrives at or goes beyond a reference level. The control circuit drives the supersonic sensor intermittently, invalidates the voltage signal for a given time after it starts the driving of the sensor and, after lapse of the invalidated time of the voltage signal, switches the supersonic sensor into its successive driving condition when the voltage signal reaches or exceeds an auxiliary reference level lower than the reference level.
摘要:
A method of manufacturing aminogroup-containing polysiloxanes of uniform quality characterized in that a cyclic organopolysiloxane represented by the following general formula: ##STR1## and an aminoalkylpolysiloxane represented by the following general formula: ##STR2## are heated together in the presence of a basic catalyst.
摘要:
A switch device for use in a power window for opening and closing a door glass of a vehicle. The switch device is driven by a driving apparatus and has a display unit for displaying whether the door glass can be opened or closed by means of an operating switch via the driving apparatus. Accordingly, it is possible to visually confirm whether or not the driving apparatus can be driven.
摘要:
A switch device for a power driven seat of a vehicle wherein the position of the seat is adjusted by the driving force of a motor. A first control knob three-dimensionally representing the shape of the seat cushion and a second control knob three-dimensionally representing the shape of the seat back are provided. These knobs are capable of moving relative to each other, and the movement of each of the knobs by an occupant is detected by a limit switch. Therefore, when the passenger intends to move each portion of the seat, it is necessary to move the first and the second control knobs in the desired direction of the seat. As a result, the seat is moved.
摘要:
A liquid crystal shutter comprising a light source, a liquid crystal element including a pair of substrates and liquid crystal interposed between the substrates, a pair of polarizing plates formed on the outer surfaces of the substrates, and a heater for heating the liquid crystal element. At least one electrode is formed on the inner surface of either substrate, and an aligning orientating layer is formed on the electrode and the inner surface of the substrate. The polarizing axis of at least one of the polarizing plates extends either parallel or at right angles to the direction of the optical axis of a substrate having an optical anisotropy caused by a temperature gradient created over the liquid crystal element in a direction toward a periphery from a center of the liquid crystal element heated by the heater, and crossing at a certain degree with an arrangement direction of liquid crystal molecules oriented by the aligning orienting layer.
摘要:
An ON electric field for turning on (allowing light transmission) a liquid crystal optical device and an OFF electric field for turning off (shielding light) the liquid crystal optical device are selectively applied to a liquid crystal material of the liquid crystal optical device. The ON electric field is applied so as to obliquely align liquid crystal molecules with respect to substrates constituting the liquid crystal optical device, thereby obtaining an ON state. The ON electric field has an electric field for driving the liquid crystal molecules and a non-electric field for generating a state wherein no electric field is applied to the liquid crystal molecules. The OFF electric field has an electric field for homeotropically aligning the liquid crystal molecules with respect to the substrates.
摘要:
An ON electric field for turning on (allowing light transmission) a liquid crystal optical device and an OFF electric field for turning off (shielding light) the liquid crystal optical device are selectively applied to a liquid crystal material of the liquid crystal optical device. The ON electric field is applied so as to obliquely align liquid crystal molecules with respect to substrates constituting the liquid crystal optical device, thereby obtaining an ON state. The ON electric field has an electric field for driving the liquid crystal molecules and a non-electric field for generating a state wherein no electric field is applied to the liquid crystal molecules. The OFF electric field has an electric field for homeotropically aligning the liquid crystal molecules with respect to the substrates.
摘要:
A dry photosensitive lithographic printing plate has a base, a photosensitive layer formed on the base and a silicone rubber layer formed on the photosensitive layer. The silicone rubber layer is formed from a silicon rubber composition containing an organopolysiloxane and a reactive aromatic aminosilane compound.
摘要:
The invention provides a benzoin group-containing cyclic organopolysiloxane, which belongs to a novel class of organosilicon compounds hitherto not known or not described in any prior art literatures. The compound has at least one benzoin group of the formula ##STR1## in which Ph is a phenyl group and R.sup.1 is a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms or, in particular, a methyl group, directly bonded to the silicon atom in the cyclic tri-, tetra-, penta- or hexasiloxane. The compound is useful as a sensitizer for the crosslinking reaction of a photo- or radiation-curable organopolysiloxane composition owing to the high miscibility of the inventive compounds with the organopolysiloxane composition.
摘要:
Improved organopolysiloxane compositions curable at room temperature into rubber-like elastomers comprisingA. a hydroxy-terminated diorganopolysiloxane,B. a substituted-aminoxy group containing organopolysiloxane,C. a salt of a metal, such as, calcium, zinc, aluminum, tin and iron, andD. an inorganic filler, such as, calcium carbonate, magnesium hydroxycarbonate and calcium hydroxide, having a basicity sufficient to compensate for the acidity of component c).The compositions exhibit uniform curability throughout the depth of the mass of the composition, even at relatively high temperatures.