Abstract: An illuminating device that can reduce illuminance unevenness of an irradiation target face with a simple construction is provided. In a pseudo sunlight illuminating device 1 having a lamp 22 for illuminating an irradiation target face 10A, a transmission light amount adjusting unit 60 for adjusting a transmission light amount so that the illuminance distribution on the irradiation target face 10a is made uniform is provided between the lamp 22 and the irradiation target face 10A, and the transmission light amount adjusting unit 60 is provided with a light transmission plate laminate member 64 which is constructed by stacking light transmission plates 65 which are constant in transmittance in a wavelength range of light to be transmitted and whose number corresponds to an adjustment amount of the transmission light amount so that incident light is reflected at each boundary of the front and back surfaces of each light transmission plate 65.

Abstract: An ophthalmic device is provided with a photographing optical system that photographs an eye fundus; an illumination optical system that illuminate the eye fundus; a split target projection optical system that projects a split target for focusing the photographing optical system on the eye fundus; an alignment target projection optical system that projects an alignment target (AL) for aligning the photographing optical system with an examining eye; an observation optical system that displays optical images of the eye fundus; and a pseudo-target display processing unit that takes an observation video signal output by the observation optical system in, detects at least one of positions of the split target and the alignment target in the observation video signal, and displays a pseudo-target on the monitor in accordance with the detected position.

Abstract: A liquid supplying reservoir enabling preventing overflow of liquid from a supply opening when a cap covering the supply opening is removed is provided. The ink supplying reservoir includes: a reservoir main body which is filled with a liquid, and at which a supply opening, from which the liquid is supplied to the outside, is formed; a cap which is fixed to the reservoir main body so as to cover the supply opening, and which is separated from the reservoir main body when a force of a predetermined value or greater acts thereon; and a flexible closing member, which is accommodated within the cap at a position or an orientation where the supply opening is not closed by the closing member and so as to be separable from the cap, and which is moved to close the supply opening when the cap is separated from the reservoir main body.

Abstract: This invention relates to a rolling mill apparatus and a method of shape control of a rolled strip which enables satisfactory shape control even in extremely thin rolling. A rolling mill apparatus of this invention has a rolling mill, which rolls a rolled strip P between upper and lower work rolls; a shape detecting portion, which detects the degree of flatness of the rolled strip in the width direction of rolled strip which has been rolled by the rolling mill; a spray portion, having a plurality of spray nozzles arranged along the length direction of the upper and lower work rolls, which sprays the upper and lower work rolls with coolant C; and, a shape control portion, which adjusts the spray amount and/or temperature of the coolant C sprayed from the spray portion based on detected information from the shape detecting portion, to control the shape of the rolled strip P.

Abstract: An illuminating device that can reduce illuminance unevenness of an irradiation target face with a simple construction is provided. In a pseudo sunlight illuminating device 1 having a lamp 22 for illuminating an irradiation target face 10A, a transmission light amount adjusting unit 60 for adjusting a transmission light amount so that the illuminance distribution on the irradiation target face 10a is made uniform is provided between the lamp 22 and the irradiation target face 10A, and the transmission light amount adjusting unit 60 is provided with a light transmission plate laminate member 64 which is constructed by stacking light transmission plates 65 which are constant in transmittance in a wavelength range of light to be transmitted and whose number corresponds to an adjustment amount of the transmission light amount so that incident light is reflected at each boundary of the front and back surfaces of each light transmission plate 65.

Abstract: A signal processing apparatus has a first circuit board having a digital/analog converter, a second circuit board having an operational amplifier, a connector connecting the first circuit board and the second circuit board, a transmitter on the first circuit board, and a controller on the second circuit board. The digital/analog converter converts, to an analog signal, a digital signal as a reference of a voltage to be applied to a capacitive load and outputs the analog signal. The operational amplifier is connected to the capacitive load at an output terminal thereof via a switching element, and amplifies the voltage of the analog signal to output. The transmitter transmits a predetermined signal to the second circuit board via the connector. The controller prevents the voltage of the analog signal from being applied to the capacitive load when the predetermined signal is not received in the second circuit board.

Abstract: A protective circuit connected between a terminal of a semiconductor integrated circuit and ground (GND), comprises: a first diode having an anode connected to the terminal of the semiconductor integrated circuit; a second diode having an anode connected to GND and a cathode connected to the cathode of the first diode; a transistor having a collector or drain connected to the terminal of the semiconductor integrated circuit, and an emitter or source connected to GND; and at least one third diode connected in series in a forward direction from the cathode of the first diode toward the base or gate of the transistor.

Abstract: An ophthalmic device is provided with a photographing optical system that photographs an eye fundus; an illumination optical system that illuminate the eye fundus; a split target projection optical system that projects a split target for focusing the photographing optical system on the eye fundus; an alignment target projection optical system that projects an alignment target for aligning the photographing optical system with an examining eye; an observation optical system that displays optical images of the eye fundus; and a pseudo-target display processing unit that takes an observation video signal output by the observation optical system in, detects at least one of positions of the split target and the alignment target in the observation video signal, and displays a pseudo-target on the monitor in accordance with the detected position.

Abstract: A liquid supplying reservoir enabling preventing overflow of liquid from a supply opening when a cap covering the supply opening is removed is provided. The ink supplying reservoir includes: a reservoir main body which is filled with a liquid, and at which a supply opening, from which the liquid is supplied to the outside, is formed; a cap which is fixed to the reservoir main body so as to cover the supply opening, and which is separated from the reservoir main body when a force of a predetermined value or greater acts thereon; and a flexible closing member, which is accommodated within the cap at a position or an orientation where the supply opening is not closed by the closing member and so as to be separable from the cap, and which is moved to close the supply opening when the cap is separated from the reservoir main body.

Abstract: This invention relates to a rolling mill apparatus and a method of shape control of a rolled strip which enables satisfactory shape control even in extremely thin rolling. A rolling mill apparatus of this invention has a rolling mill, which rolls a rolled strip P between upper and lower work rolls; a shape detecting portion, which detects the degree of flatness of the rolled strip in the width direction of rolled strip which has been rolled by the rolling mill; a spray portion, having a plurality of spray nozzles arranged along the length direction of the upper and lower work rolls, which sprays the upper and lower work rolls with coolant C; and, a shape control portion, which adjusts the spray amount and/or temperature of the coolant C sprayed from the spray portion based on detected information from the shape detecting portion, to control the shape of the rolled strip P.

Abstract: A signal processing apparatus has a first circuit board having a digital/analog converter, a second circuit board having an operational amplifier, a connector connecting the first circuit board and the second circuit board, a transmitter on the first circuit board, and a controller on the second circuit board. The digital/analog converter converts, to an analog signal, a digital signal as a reference of a voltage to be applied to a capacitive load and outputs the analog signal. The operational amplifier is connected to the capacitive load at an output terminal thereof via a switching element, and amplifies the voltage of the analog signal to output. The transmitter transmits a predetermined signal to the second circuit board via the connector. The controller prevents the voltage of the analog signal from being applied to the capacitive load when the predetermined signal is not received in the second circuit board.

Abstract: The liquid ejection apparatus comprises: a liquid ejection head including a nozzle which ejects liquid, a pressure chamber provided to correspond to the nozzle, a pressure generating element which is disposed on a first wall surface of the pressure chamber and adjusts pressure in the pressure chamber, and a determination element which is disposed on a second wall surface of the pressure chamber and generates a first determination signal corresponding to the pressure in the pressure chamber adjusted by the pressure generating element; a threshold value setting device which sets a threshold value in accordance with a waveform of the first determination signal generated by the determination element; a comparing device which acquires a comparison result obtained by comparing the first determination signal with the threshold value which is set by the threshold value setting device; and an evaluation device which acquires an evaluation result obtained by evaluating a size of an air bubble present in the pressure ch

Abstract: A protective circuit connected between a terminal of a semiconductor integrated circuit and ground (GND), comprises: a first diode having an anode connected to the terminal of the semiconductor integrated circuit; a second diode having an anode connected to GND and a cathode connected to the cathode of the first diode; a transistor having a collector or drain connected to the terminal of the semiconductor integrated circuit, and an emitter or source connected to GND; and at least one third diode connected in series in a forward direction from the cathode of the first diode toward the base or gate of the transistor.

Abstract: An opthalmologic photographing apparatus which is used to observe and photograph a fundus oculi of an eye to be examined, includes an observation light source illuminating the eye to observe the fundus oculi of the eye, a photographing light source illuminating the eye to photograph an image of the fundus oculi of the eye, an aperture through which light illuminated from either the observation light source or the photographing light source and reflected on the fundus oculi of the eye is observed or photographed, and a control device which is configured to control an opening area of the aperture. The control device sets the opening area of the aperture to an opened observing opening area when observing the fundus oculi, and to a narrowed photographing opening area when photographing the image of the fundus oculi.

Abstract: The liquid ejection apparatus includes: a liquid ejection head including a nozzle which ejects liquid, a pressure chamber which is connected to the nozzle and is to be filled with the liquid, a pressure generating element which pressurizes the liquid in the pressure chamber, and a pressure determination element which determines a pressure inside the pressure chamber and outputs a pressure determination signal; a storage device which stores a peak value of the pressure determination signal output by the pressure determination element in a state where the nozzle ejects the liquid normally; a first ejection abnormality factor extraction device which extracts a first ejection abnormality factor by comparing the peak value stored previously in the storage device with the pressure determination signal output by the pressure determination element during a prescribed period for ejection abnormality determination; a threshold value variably setting device which sets a threshold value for extracting a second ejection a

Abstract: The liquid ejection apparatus comprises: a liquid ejection head having a nozzle which ejects liquid, a pressure chamber which is provided correspondingly to the nozzle, and a pressure measurement device which is provided correspondingly to the pressure chamber and measures pressure in the pressure chamber; a bubble removal device which removes a bubble from the pressure chamber; an error extraction device which extracts an error in capacitance of the pressure measurement device of the pressure chamber from which the bubble has been removed by the bubble removal device; a threshold value setting device which sets a corrected threshold value to be used for determination of pressure abnormality in the pressure chamber, the corrected threshold value having been corrected for the error in the capacitance of the pressure measurement device extracted by the error extraction device; a storage device which stores the corrected threshold value set by the threshold value setting device; and a pressure abnormality determ

Abstract: An opthalmologic photographing apparatus which is used to observe and photograph a fundus oculi of an eye to be examined, includes an observation light source illuminating the eye to observe the fundus oculi of the eye, a photographing light source illuminating the eye to photograph an image of the fundus oculi of the eye, an aperture through which light illuminated from either the observation light source or the photographing light source and reflected on the fundus oculi of the eye is observed or photographed, and a control device which is configured to control an opening area of the aperture. The control device sets the opening area of the aperture to an opened observing opening area when observing the fundus oculi, and to a narrowed photographing opening area when photographing the image of the fundus oculi.

Abstract: The rolling mill comprises a pair of work rolls for rolling a plate material in the thickness direction, a guide for guiding the leading end of the plate material between the work rolls, and a rolling oil supply member for supplying rolling oil between the work rolls through a rolling oil passage formed within the guide. The rolling mill further comprises a temperature adjusted oil passage formed within the guide separately from the rolling oil passage, and a temperature adjusted oil supply member for applying temperature adjusted oil having a different temperature from the rolling oil to the work rolls through the temperature adjusted oil passage so as to control the crown rate of the work rolls, improving the controllability of the crown rate of the work roll.

Abstract: The rolling mill comprises a pair of work rolls for rolling a plate material in the thickness direction, a guide for guiding the leading end of the plate material between the work rolls, and a rolling oil supply member for supplying rolling oil between the work rolls through a rolling oil passage formed within the guide. The rolling mill further comprises a temperature adjusted oil passage formed within the guide separately from the rolling oil passage, and a temperature adjusted oil supply member for applying temperature adjusted oil having a different temperature from the rolling oil to the work rolls through the temperature adjusted oil passage so as to control the crown rate of the work rolls, improving the controllability of the crown rate of the work roll.

Abstract: The liquid ejection apparatus includes: a liquid ejection head including a nozzle which ejects liquid, a pressure chamber which is connected to the nozzle and is to be filled with the liquid, a pressure generating element which pressurizes the liquid in the pressure chamber, and a pressure determination element which determines a pressure inside the pressure chamber and outputs a pressure determination signal; a storage device which stores a peak value of the pressure determination signal output by the pressure determination element in a state where the nozzle ejects the liquid normally; a first ejection abnormality factor extraction device which extracts a first ejection abnormality factor by comparing the peak value stored previously in the storage device with the pressure determination signal output by the pressure determination element during a prescribed period for ejection abnormality determination; a threshold value variably setting device which sets a threshold value for extracting a second ejection a