Abstract: A cord switch including a cord switch main body including a hollow tubular member having elasticity and electrical insulating property and a plurality of electrode wires provided to face each other with an interval at an inner surface of the tubular member and spaced from each other by the elasticity of the tubular member, and a mounting member having an elastic modulus greater than an elastic modulus of the tubular member and being provided along the cord switch main body. The cord switch also includes a strip-shaped impact absorption member having an elastic modulus lower than the elastic modulus of the tubular member, which is interposed between the cord switch main body and the mounting member.

Abstract: A magnetic motion sensor has: two magnetic sensors aligned in a direction along which changes in a magnetic field shift for detecting an appearance of the changes; a differential means for taking out a differential signal of output signals from these two magnetic sensors; and a timing detection means for generating a pulse, indicating a timing at which the changes in a magnetic field pass through either of the magnetic sensors, when an output signal of the magnetic sensor in question strides over a threshold value, while generating a pulse, indicating a timing at which the changes in a magnetic field pass through in between the magnetic sensors, when the differential signal strides over the threshold value.

Abstract: A magnetic motion sensor has: two magnetic sensors aligned in a direction along which changes in a magnetic field shift for detecting an appearance of the changes; a differential means for taking out a differential signal of output signals from these two magnetic sensors; and a timing detection means for generating a pulse, indicating a timing at which the changes in a magnetic field pass through either of the magnetic sensors, when an output signal of the magnetic sensor in question strides over a threshold value, while generating a pulse, indicating a timing at which the changes in a magnetic field pass through in between the magnetic sensors, when the differential signal strides over the threshold value.

Abstract: An LED array composed of a plurality of LEDs is disposed on either side of a signal interconnection board, while metal plates are disposed on the other side of the signal interconnection board as positive and negative power source lines for driving the LEDs, respectively, and a capacitor is provided between the positive metal plate for power supply and the negative metal plate for power supply. As a result, the LED array in which an output light is not lowered in power, no variations in light output arises in every LEDs, and all the LEDs can be turned on simultaneously is provided.