摘要:
In a sliding door apparatus, a first entrance is opened and closed by a first door, and a second entrance that faces the first entrance is opened and closed by a second door. Imaging means that captures images across a space between the first entrance and the second entrance is disposed beside the space. An image processing and determining portion determines presence or absence of an obstruction inside the space based on image data from the imaging means.
摘要:
In a sliding door apparatus, a first entrance is opened and closed by a first door, and a second entrance that faces the first entrance is opened and closed by a second door. Imaging means that captures images across a space between the first entrance and the second entrance is disposed beside the space. An image processing and determining portion determines presence or absence of an obstruction inside the space based on image data from the imaging means.
摘要:
A radiant-temperature measurement device includes a time-based data measurement unit for acquiring, based on an intensity of first light, a first data value during a first measuring interval in a first intensity duration, and a second data value during a second measuring interval in a second intensity duration. The time-based data measurement unit is also for acquiring, based on an intensity of second light, a third data value in a first wavelength band, and a fourth data value in a second wavelength band, during the first measuring interval, and a fifth data value in the first wavelength band, and a sixth data value in the second wavelength band, during the second measuring interval. The radiant-temperature measurement device also includes a temperature calculation unit for calculating, based on the first, second, third, fourth, fifth, and sixth data values, a temperature of a light source at its light-emitting end.
摘要:
A detecting unit provided with an optical system is disposed away from a control unit formed by an electric circuit and an optical transmission/receiving means, and the detecting unit and the control unit are coupled through a transmission optical fiber. The control unit transmits to the detecting unit through the optical fiber a light wave which was subjected to the intensity modulation by a sinusoidal wave of a predetermined frequency. The transmitted light wave is branched into at least two branched optical paths within the detecting unit thereby to perform the phase modulation as to the respective light waves. The light waves passed through the respective branched optical paths are subjected to the phase modulation by the sinusoidal waves which differ in phase 1/4 period by 1/4 period from one another according to a position on a straight line or a rotation angle of a subject to be detected. Then, the light waves thus subjected to the intensity modulation are coupled to a single transmission optical fiber through the branched optical paths and transmitted to the control unit through the transmission optical fiber. In the control unit, the modulated light wave is received and subjected to the phase detection, thereby to calculate and output the position and the rotation angle in accordance with the phase modulation amount of the received light wave.
摘要:
An irregular pattern input device includes an optical fiber bundle in which an entrance surface and an exit surface are respectively formed at both ends thereof. Lighting means emits irradiation light so as to provide a light pattern according to a convex portion of a subject in contact with the entrance surface, and according to a concave portion of the subject in no contact with the entrance surface. In this case, an angle of incidence of the irradiation light is set to be larger than a critical angle on an interface between a core portion of each optical fiber of the optical fiber bundle and the air. It is thereby possible to provide total reflection on the entrance surface in no contact with the concave portion of the subject, and non-total reflection on the entrance surface in contact with the convex portion of the subject, resulting in reflected light having a light pattern according to an irregular pattern. The resultant light pattern is inputted into photoelectric transforming means through the exit surface, and is transformed into electric information by the photoelectric transforming means.
摘要:
In a two-color (ratio) or dual-wavelength radiant-temperature measurement, when a bright stray-light source in which its light intensity varies depending on time exists near an object to be measured, by removing an influence caused by the stray light, temperature of the measuring object is measured.By including a main detection unit 51 for measuring, with respect to light from the temperature-measuring object onto which the stray light is added, variation in light intensity versus time in two wavelength bands, and a subordinate detection unit 52 for measuring variation in stray-light intensity versus time only, a temperature calculation unit 70 is provided so that, the varied amounts are extracted, corresponding to superimposed pulses added onto a light-source's drive current, from measured results of the main detection unit 51 and the subordinate detection unit 52; an influential component caused by the stray light is estimated based on a ratio between the varied amounts of both the measured results corresponding to the superimposed pulses; and then, from a measured value in which the influential component caused by the stray light is removed from the measured light intensity values in the two wavelength bands, the temperature of the temperature-measuring object is calculated based on the dual-wavelength radiant-temperature measurement method.
摘要:
A device for detecting the configuration of a hot-rolled steel plate operates to sever an uneven front end from the main body thereof. The device includes sensors supplying a video signal of the plate and additional devices for differentiating, binarily encoding and otherwise processing the video signal to obtain a width signal which is used in controlling cutting.
摘要:
A sliding door system has a pair of horizontally opposed vertical surfaces defining therebetween an opening, an upper horizontal surface connecting uppermost ends of the vertical surfaces, a lower horizontal surface connecting lowermost ends of the vertical surfaces, and a door moving horizontally to open and close the opening. The sliding door system also includes a first optical device having a light emitter for emitting light, a second optical device having a light detector for detecting the light, and a light reflector for reflecting the light emitted from the light emitter to the light receiver. The light reflector is positioned in at least one of the horizontally opposed vertical surfaces. The first and second optical devices are positioned in the upper horizontal surface.
摘要:
An elevator system has a pair of horizontally opposed vertical surfaces defining therebetween a doorway or opening to an elevator cage and a door moving horizontally to open and close the opening. In particular, the system has a first optical device having a light emitter for emitting light and a second optical device having a light receiver for receiving the light emitted from the light emitter. The first and second optical devices are positioned in a vertical plane crossing the opening and adjacent to the opening. One of the first and second optical devices is positioned below the other of the first and second optical devices and mounted in the vertical surface.