Abstract: A vehicular burglar-proof system includes (i) a plurality of alarm unit, (ii) a detection unit for detecting movement, opening, and closing of a movable body, and (iii) a control unit connected to the plurality of alarm unit and the detection unit. A predetermined operation of the movable body allows the control unit to turn off the plurality of alarm unit or change the alarm unit into a predetermined alarming state. This structure can provide a user-friendly vehicular burglar-proof system in which an alarming state can easily be selected according to the use.

Abstract: A vehicular burglar-proof system includes (i) a plurality of alarm unit, (ii) a detection unit for detecting movement, opening, and closing of a movable body, and (iii) a control unit connected to the plurality of alarm unit and the detection unit. A predetermined operation of the movable body allows the control unit to turn off the plurality of alarm unit or change the alarm unit into a predetermined alarming state. This structure can provide a user-friendly vehicular burglar-proof system in which an alarming state can easily be selected according to the use.

Abstract: A dimmer for vehicle use of the present invention has a circuitry in which an output part of an amplifier in an oscillating circuit is grounded through a diode and a ground resistor in series, an anode of the diode is coupled to the output part, and a junction point between a cathode of the diode and the ground resistor is coupled to a non-inversion input part through a feedback resistor. The dimmer can subject stable brightness prevented from changing in response to ambient temperature in the simple and inexpensive circuitry.

Abstract: A dimmer for vehicle use of the present invention has a circuitry in which an output part of an amplifier in an oscillating circuit is grounded through a diode and a ground resistor in series, an anode of the diode is coupled to the output part, and a junction point between a cathode of the diode and the ground resistor is coupled to a non-inversion input part through a feedback resistor. The dimmer can subject stable brightness prevented from changing in response to ambient temperature in the simple and inexpensive circuitry.

Abstract: A light-controlling device of this invention includes a controlling circuit having a function for turning an incandescent lamp and an LED off simultaneously, which have different minimum voltages each other at predetermined illumination. When illumination of the lamp and the LED decrease to the predetermined illumination by rotating an operating section of a variable resistor, the controlling circuit turns the lamp and the LED off based on a signal from a detecting switch linked with rotating operation of the operating section. As a result, an operator does not feel strange.

Abstract: A light-controlling device of this invention includes a controlling circuit having a function for turning an incandescent lamp and an LED off simultaneously, which have different minimum voltages each other at predetermined illumination. When illumination of the lamp and the LED decrease to the predetermined illumination by rotating an operating section of a variable resistor, the controlling circuit turns the lamp and the LED off based on a signal from a detecting switch linked with rotating operation of the operating section. As a result, an operator does not feel strange.