摘要:
A metal material characterized in that the material comprises a substrate metal, a film comprising a nickel fluoride layer and formed on the substrate metal, and a film comprising a carbon layer and formed on the film.
摘要:
A metal material characterized in that the material comprises a substrate metal, a film comprising a nickel fluoride layer and formed on the substrate metal, and a film comprising a carbon layer and formed on the film.
摘要:
An electric motor fan comprises a fan driven by a motor, a case with the fan mounted therein and including a scroll providing an air outlet port of the fan, and a control unit including an output transistor for controlling the drive of the motor. The control unit includes a heat radiation device mounted in the scroll for radiating the heat generated by the transistor. At least a part of the heat radiation device is formed as a radiation fin having an internal surface in the same plane as the internal wall surface of the scroll.
摘要:
A metal material characterized in that the material comprises a substrate metal, a film comprising a nickel fluoride layer and formed on the substrate metal, and a film comprising a carbon layer and formed on the film.
摘要:
An optical switch having two spherical or elliptical corner-reflecting surfaces provided in a light-conducting member, a shutter to open and close a light path between the corner-reflecting surfaces, and focusing lenses to focus the incident beam from an emitting optical fiber and to focus the emitting beam from the light-conducting member to a primary receiving optical fiber. Because almost all the beam transmitted through the light-conducting member is focused at one point in an air gap in which the shutter moves, the optical switch can transmit the beam with high efficiency without leakage to the outside, and a small stroke of the shutter is sufficient to completely transmit or stop the beam. In another similar optical switch having a reflecting surface at the tip of the shutter for inclining the beam, as well as having a secondary receiving optical fiber aligned with the path of the inclined beam, the beam is switched to be transmitted to the primary receiving optical fiber or to the secondary receiving optical fiber according to the position of the shutter. Thus, the ON/OFF state of the optical switch can be indicated, or a transfer-type optical switch can be obtained by using the secondary receiving optical fiber as well as the primary receiving optical fiber as switching circuits.