Abstract: A photomultiplier includes a photocathode and an electron multiplier. A typical structure of the electron multiplier is obtained such that a dynode unit constituted by stacking a plurality of dynode plates in the incident direction of photoelectrons, an anode plate, and an inverting dynode plate are stacked. The anode plate has electron through holes at a predetermined portion to cause secondary electrons emitted from the dynode unit to pass therethrough. Each electron through hole has a diameter on the inverting dynode plate side larger than that on the dynode unit side, thereby increasing the capture area of the secondary electrons orbit-inverted by the inverting dynode plate.

Abstract: A distance measuring device for a camera projects a pulsed light beam toward a subject and converts the reflected light from the subject to a voltage which is integrated by an integrating circuit. The output of the integrating circuit is compared with a first reference voltage until the level thereof exceeds the first reference voltage, and then the output of the integrated circuit is compared with a second reference voltage until the level thereof reaches the second reference voltage. The distance to the subject is calculated depending on the number of times the integration operation is performed.

Abstract: A device for controlling the power supplied to windings of a stepping motor includes a pulse generator for splitting one step drive period of the motor into a plurality of sections, the number of sections and increasing or decreasing depending upon the drive frequency. The pulse generator, also sets the duty cycle of a pulse applied to the motor. The device also includes a stepping motor drive circuit for exciting each phase of the motor with a current determined by the duty cycle of pulse, and a duty changing device for changing the duty cycle for each of plural sections in one excitation phase of the stepping motor, wherein a current wave input into the motor can be maintained as a sinusoidal wave from low-speed rotation to high-speed rotation of the motor by changing the number of sections in excitation depending upon serial drive operations, thereby achieving motor control with less rotation inconsistencies and less noise.

Abstract: The present invention enables to print the image of high picture quality on an ordinary paper or other arbitrary substrate for sublimation thermal transfer printing by the thermal transfer printing method, wherein using the combination of a transfer printing member with a coloring material layer on the substrate A, intermediate medium with dye-receiving layer on the substrate B and an image receiving member.

Abstract: A temperature-compensated piezoelectric oscillator includes a voltage-controlled piezoelectric oscillator, a first frequency divider, a second frequency divider, and a controller. The voltage-controlled piezoelectric oscillator has an output frequency controlled by a control voltage and oscillates the output frequency having a center frequency f.sub.0 at an ambient temperature of t.sub.0. The first frequency divider frequency-divides the output frequency from the voltage-controlled piezoelectric oscillator by N to output a first divided output frequency. The second frequency divider frequency-divides the output frequency from the voltage-controlled piezoelectric oscillator by M to output a second divided output frequency. The controller controls the control voltage to be applied to the voltage-controlled piezoelectric oscillator on the basis of a frequency difference between the first and second divided output frequencies upon a variation in ambient temperature of t.sub.

Abstract: An adapter connected between a host computer and disk storage devices provides interfaces for connecting to the host computer and the disk storage devices having the same interface design. The adapter itself includes control means for building a redundant disk storage system. Moreover, the adapter itself includes means for detecting and indicating a failed disk storage device, means for replacing the failed disk storage device, and means for rebuilding a redundant disk storage system after the replacement of disk storage devices. A command is configured so that the host computer can have access to each of disk storage devices for maintenance purposes. The adapter makes it easy to configure a highly reliable redundant disk storage system for a small computer system without any change to existing hardware or software.

Abstract: Atomized steel powder having excellent machinability, containing about S 0.005 wt % to 0.3 wt %, Cr 0.03 wt % to 0.3 wt %, Mn 0.03 wt % to 0.5 wt %, O 0.30 wt % or less, and the balance Fe and incidental impurities, and sintered steel that can be manufactured therefrom. In particular, each of specific components is limited to a preferred range so that atomized steel powder exhibiting excellent machinability, dimensional accuracy and wear resistance and sintered steel that can be manufactured therefrom are provided.

Abstract: A pneumatic tire for all seasons comprises a tread provided with a foamed rubber containing a given amount of a particular resin such as crystalline syndiotactic 1,2 -polybutadiene having specified hardness and average particle size, and having specified expansion ratio, average expanded cell size and storage modulus (E') at -20.degree. C. of a given range, and exhibits satisfactory braking and traction performances at not only dry-on-ice state but also wet-on-ice state while sufficiently holding the steering stability, durability and low fuel consumption in summer season.

Abstract: The present invention provides an electrostatic information-recording medium including an electrode layer (13) and a charge-retaining layer, in which said charge-retaining layer is formed of a laminate of a resin layer (11a) having a low glass transition temperature with a heat-resistant, insulating layer (11b), or an electrostatic information-recording medium comprising at least an electrode layer (13) and a charge-retaining layer (11) in which said charge-retaining layer (11) is formed of a polymer layer (12) containing pentafluorostyrene as a monomer component and having a weight-average molecular weight of 10,000 to 2,000,000, or which includes a photoconductive layer (44) and a charge-retaining layer (43) between a pair of electrodes (42) and (45) and is designed to carry out exposure with the application of voltage between both said electrodes (42) and (45) or apply voltage between both said electrodes (42) and (45) while exposure is carried out, thereby forming an electrostatic latent image, which is t

Abstract: A silver halide light-sensitive material comprising a support having thereon at least four silver halide emulsion layers having different color sensitivity, wherein three layers of the silver halide emulsion layers each contains a specific coupler and the other silver halide emulsion layer contains coupler(s) capable of correcting colors so as to provide a substantially black color having a transmission density of 2.5 or more when all couplers on the support are reacted. A color filter comprising blue, green, red and black parts prepared by subjecting the above-described silver halide light-sensitive material to pattern exposure, color development, bleach-fixing and water washing.

Abstract: To make it possible to receive a modulated signal which is obtained by suppressing a carrier signal such as a high definition TV signal which is digitally demodulated such as QAM (quadrature amplitude modulation), a receiver of the double super-heterodyne system having the first and second mixers 9 and 13 is a basic constitution. A band pass filter having a flatness in pass band and a small deviation of group delay which will prevent the demodulation of a high definition TV signal from degradation is used a first intermediate frequency filter 11. An SAW filter is used as a second intermediate frequency filter 16. The third mixer 28 for converting a second intermediate frequency signal to a third intermediate frequency signal in frequency is installed and the frequency of the third intermediate frequency signal to be converted is set to a value lower than the frequency of the second intermediate frequency signal.

Abstract: In an image forming apparatus, a device for turning a paper of the present invention has a transport roller constantly rotatable in a predetermined direction for paper transport. A reverse transport member is positioned downstream of the transport roller in the predetermined direction, and transports the paper, transported by the transport roller, in the direction opposite to the predetermined direction. A turn guide has a first guide face for guiding the paper toward the transport roller, and a second guide face for guiding in a paper discharge direction the paper being transported by the reverse transport member in the direction opposite to the predetermined direction. The end portion of the first and second guide faces close to the reverse transport member extends in the direction in which the end portion intersects the periphery of the transport roller.

Abstract: A data processing system for executing a process. Classes and composite classes are formed by combining methods. Instances are formed and correspond to the classes and composite classes. The real world is analyzed as an object model which includes a static world, a dynamic world and a cause and effect relationship. The object model has a corresponding extension and a corresponding connotation. The connotation is in an information concealed region, and identification information identifies the extension and connotation. A system mechanism is created with respect to the static world using the classes and composite classes, where the system mechanism is a static model for the static world. The instances are used to form a session corresponding to motion with respect to the dynamic world, where the session is a dynamic model for the dynamic world. The cause and effect relationship of the object model is generated from the dynamic model into the static model.

Abstract: A fundus camera capable of adjusting a working distance between a camera body and a subject's eye quickly and easily with high accuracy and capable of observing an eye fundus image in a field of view and at a magnification each substantially same as those selected when an eye fundus is photographed. To adjust the working distance quickly and easily with high accuracy, the fundus camera has an optical member 59 provided in a projecting optical system 56 for projecting alignment light onto a subject's eye E. The optical member 59 projects split alignment images onto the eye E when the working distance W is out of a predetermined proper distance. To observe the eye fundus image in the substantially same field of view and at the substantially same magnification as those selected when the eye fundus is photographed, the fundus camera has a device for, according to power variation, changing a state of illumination light illuminating the eye E.

Abstract: An optical apparatus is provided with a lens unit movable in the direction of the optical axis thereof, a lens barrel, an electromagnetic coil coupled to one of the lens unit and the lens barrel, a driving unit having a magnetic material coupled to the other of the lens unit and the lens barrel, and a guide for slidably guiding the lens unit relative to the lens barrel.

Abstract: An optical disk apparatus includes a recording method in which at least one of the scanning position, the irradiation time, the irradiation start point and the irradiation power of a light beam is arbitrarily changed, and a method and apparatus in which information is represented by a plurality of recording marks without being limited to two kinds of recording and erasion. In order to prevent overlapping recording/erasion, a recording clock generating unit delays a reference clock signal to generate a recording clock signal and a recording control unit transfers user data to an optical head in synchronism with the recording clock signal so that it is recorded on an optical disk. Also, the amount of delay is recorded to enable sure reading or reproduction. At the time of reading, a servo mark detection signal is divided to generate a clock signal having a variable frequency, thereby realizing an optical disk for which high-precision recording/reproduction is possible.

Abstract: A plasma CVD device having a chamber, an upper electrode provided in the chamber, an under electrode provided in the chamber to be opposite to the upper electrode and to mount a sample thereon, and a plurality of power sources having a different frequency connected to the upper electrode. Gas is introduced into the chamber of the plasma CVD device, the gas contains at least an organic silicon compound, CF.sub.4 and O.sub.2, and has an element ratio (F/Si) of silicon (Si), constituting the organic silicon compound, to fluorine (F), constituting CF.sub.4, to be set to 15 or more. Si(OC.sub.2 H.sub.5).sub.4 or Si(OCH.sub.3).sub.4 is used as an organic silicon compound.

Abstract: In a copying processing performed several times from the depression of a copy button of a copying machine until the surface potential of the photoreceptor drum is stabilized, a voltage sufficiently high for correcting the rise characteristic of the photosensitive layer on the drum surface is applied to a charger. A main circuit having a controlling portion to realize this corrects the output voltage of the high-voltage generating circuit which applies a high voltage to the charger to a voltage value necessary for the drum surface to be charged at a stable potential level. The main circuit charges the drum surface at the stable potential level necessary for development from copying of the first sheet.

Abstract: An optical disk device which uses a light spot for reproducing data, including photodetector, a decoder, and a non-linear equalizer provided between the photodetector and the decoder for correcting non-linear distortions in a reproduced signal from an optical disk. The non-linear equalizer includes a linear equalizer and a decision feedback equalizer provided after the linear equalizer. The non-linear equalizer includes a detector for detecting a signal on the basis of the output of the linear equalizer with the output of the detector being input to the decision feedback equalizer, the output of which is input to the detector along with the output of the linear equalizer in an additive manner.

Abstract: An air conditioner includes a means for detecting a frequency for controlling an AC motor of a compressor, a means for determining whether the frequency during operation converges to within a predetermined range, of the frequency required to maintain the designated temperature, and a means for shifting the designated temperature by a predetermined temperature when the frequency converges to the predetermined range. The temperature is shifted when the frequency decreases and converges to the predetermined range while the air conditioner operation causes the room temperature to approach the designated temperature. Thus, even if the body temperature of a user decreases because, for example, he is sleeping, the stable state of the operation can be accurately determined and thereby a comfortable temperature is maintained.