Abstract: In an induction heating coil unit for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mold and a movable mold, and a space is provided along a side surface of the manifold on which clamping force applied by the fixed mold and the movable mold does not act. A coil is wound to the side surface along an axial line of a runner of the manifold within the space such that the manifold is induction-heated from the side surface.

Abstract: The present invention provides an induction heating method for a manifold in a hot runner mold where it is possible to uniformly heat material over the entire length of a runner and in which a coil may be easily attached to and detached from the manifold.

Abstract: In an induction heating method for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mold and a movable mold, and a space is provided along a side surface of the manifold on which clamping force applied by the fixed mold and the movable mold does not act. A coil is wound to the side surface along an axial line of a runner of the manifold within the space such that the manifold is induction-heated from the side surface.

Abstract: The present invention provides an induction heating method for a manifold in a hot runner mold where it is possible to uniformly heat material over the entire length of a runner and in which a coil may be easily attached to and detached from the manifold.

Abstract: In a camera section, a luminance signal and the predetermined hue gate signal are modulated by a modulator in a quadrature modulation manner and the modulated signal is transmitted to a camera control unit via a cable. The modulated signal is separated by a branching filter in the unit and demodulated by a demodulator to generate the luminance signal and the detection signal. A signal to which the luminance signal and the detection signal are added, is used as a monitor video signal and a white image is displayed on a monitor screen within a range for the detection signal. Thus, the range detection signal can be observed with the monitor screen. Since the unit uses the added signal as the monitor video signal and the luminance signal for another purpose, the range of the detection signal can be observed by the monitor screen while using the luminance signal for another purpose.

Abstract: A video camera system is composed of a camera head unit having an imager and a microphone, a camera control unit connected to the camera head unit through a coaxial cable for controlling the camera head unit, and a microphone for transmitting an output signal through the coaxial cable to the camera control unit. According to this video camera system, a noise component entered the camera control unit from the camera head unit can be reduced, two communication systems can be independently utilized, and a noise component in the coaxial cable can be reduced considerably. In addition, it becomes possible to widen a dynamic range.