Abstract: A light source device for endoscope includes a rotational body configured to rotate with a rotational axis as a center; a fluorescent body arranged in a predetermined area of the rotational body and configured to generate fluorescence by excitation light being radiated; an illuminating portion capable of selectively radiating excitation light of a first quantity and excitation light of a second quantity which is larger than the first quantity to a fluorescent body; and a control portion configured to switch between a first state of radiating the excitation light of the first quantity to the fluorescent body arranged in a first area and a second state of radiating the excitation light of the second quantity to the fluorescent body arranged in a second area.

Abstract: A light source device for endoscope includes: an irradiation portion capable of radiating excitation light; a rotating body provided on an optical axis of the excitation light and configured to rotate with a rotating shaft as a center; a phosphor arranged in an irradiation area of the excitation light, and configured to generate fluorescence by being irradiated with the excitation light; a light quantity control portion configured to control irradiation intensity or irradiation time of the excitation light; and a rotation control portion configured to rotate the rotating body at a predetermined speed when the excitation light is radiated with a first irradiation intensity or time and rotate the rotating body faster than the predetermined speed when reducing the irradiation intensity or the irradiation time of the excitation light is reduced in the irradiation intensity or time vis-a-vis the first ones.

Abstract: In a MOSFET, the lead parts of gate lead wiring that lead out a gate electrode on the periphery of a substrate constitute a non-operative region where it is impossible to dispose a MOSFET transistor cell (C) that will function as efficiently as inside an element region. If the gate lead wiring is disposed along the four edges of a chip, for example, the area of the non-operative region increases, limiting the extent to which the surface area of the element region can be enlarged and the chip surface area reduced. In the present invention, gate lead wiring and a conductor, which is connected to the gate lead wiring and a protection diode, are disposed in a non-curved, linear configuration along one edge of a chip. In addition, a first gate electrode layer that extends superimposed on the gate lead wiring and the conductor, and connects the gate lead wiring and the conductor to the protection diode, has no more than one curved part.

Abstract: A light source device for endoscope includes a rotational body configured to rotate with a rotational axis as a center; a fluorescent body arranged in a predetermined area of the rotational body and configured to generate fluorescence by excitation light being radiated; an illuminating portion capable of selectively radiating excitation light of a first quantity and excitation light of a second quantity which is larger than the first quantity to a fluorescent body; and a control portion configured to switch between a first state of radiating the excitation light of the first quantity to the fluorescent body arranged in a first area and a second state of radiating the excitation light of the second quantity to the fluorescent body arranged in a second area.

Abstract: A light source device for endoscope includes: an irradiation portion capable of radiating excitation light; a rotating body provided on an optical axis of the excitation light and configured to rotate with a rotating shaft as a center; a phosphor arranged in an irradiation area of the excitation light, and configured to generate fluorescence by being irradiated with the excitation light; a light quantity control portion configured to control irradiation intensity or irradiation time of the excitation light; and a rotation control portion configured to rotate the rotating body at a predetermined speed when the excitation light is radiated with a first irradiation intensity or time and rotate the rotating body faster than the predetermined speed when reducing the irradiation intensity or the irradiation time of the excitation light is reduced in the irradiation intensity or time vis-a-vis the first ones.

Abstract: In a MOSFET, the lead parts of gate lead wiring that lead out a gate electrode on the periphery of a substrate constitute a non-operative region where it is impossible to dispose a MOSFET transistor cell (C) that will function as efficiently as inside an element region. If the gate lead wiring is disposed along the four edges of a chip, for example, the area of the non-operative region increases, limiting the extent to which the surface area of the element region can be enlarged and the chip surface area reduced. In the present invention, gate lead wiring and a conductor, which is connected to the gate lead wiring and a protection diode, are disposed in a non-curved, linear configuration along one edge of a chip. In addition, a first gate electrode layer that extends superimposed on the gate lead wiring and the conductor, and connects the gate lead wiring and the conductor to the protection diode, has no more than one curved part.

Abstract: In a MOSFET, the lead parts of gate lead wiring that lead out a gate electrode on the periphery of a substrate constitute a non-operative region. If the gate lead wiring is disposed along the four edges of a chip, the area of the non-operative region increases. In the present invention, gate lead wiring and a conductor, which is connected to the gate lead wiring and a protection diode, are disposed in a non-curved, linear configuration along one edge of a chip. In addition, a first gate electrode layer that extends superimposed on the gate lead wiring and the conductor, and connects the gate lead wiring and the conductor to the protection diode, has no more than one curved part. Furthermore, the protection diode is disposed adjacent to the conductor or the gate lead wiring, and a portion of the protection diode is disposed near a gate pad.

Abstract: In a MOSFET, the lead parts of gate lead wiring that lead out a gate electrode on the periphery of a substrate constitute a non-operative region. If the gate lead wiring is disposed along the four edges of a chip, the area of the non-operative region increases. In the present invention, gate lead wiring and a conductor, which is connected to the gate lead wiring and a protection diode, are disposed in a non-curved, linear configuration along one edge of a chip. In addition, a first gate electrode layer that extends superimposed on the gate lead wiring and the conductor, and connects the gate lead wiring and the conductor to the protection diode, has no more than one curved part. Furthermore, the protection diode is disposed adjacent to the conductor or the gate lead wiring, and a portion of the protection diode is disposed near a gate pad.

Abstract: A protection diode group includes multiple protection diodes connected to each other in parallel. A total junction area average of the protection diode group is set to a value large enough to guarantee a desired electrostatic discharge tolerance. By setting the total junction area average to be equal to a junction area average of a conventional structure, the occupation area of the protection diode group on the chip is reduced while the ESD tolerance is made equal to a conventional ESD tolerance.

Abstract: A protection diode group includes multiple protection diodes connected to each other in parallel. A total junction area average of the protection diode group is set to a value large enough to guarantee a desired electrostatic discharge tolerance. By setting the total junction area average to be equal to a junction area average of a conventional structure, the occupation area of the protection diode group on the chip is reduced while the ESD tolerance is made equal to a conventional ESD tolerance.

Abstract: An endoscope system comprising an endoscope which incorporates an imaging element together with an element for determining the type of the imaging element; a light source apparatus, which includes a DMD in a light path from a light source lamp, for determining incidence or non-incidence of the illuminating light from the light source lamp on a mirror; a CPU which determines the type of imaging element based on the information provided by the type determining element and detects a time required by the imaging element for charge reading based on the determination result; and a DMD control circuit which controls the DMD at a charge reading timing of the imaging element corresponding to the charge reading time detected by the CPU, the endoscope system making it possible to extend the exposure time to a maximum regardless of the type of the endoscope, by controlling the light shielding time of illuminating light in accordance with the type of the imaging element.

Abstract: An endoscope system has a lamp 22 that emits illumination light with which an object is illuminated, and a power supply 24 that supplies power with which the lamp is lit. Furthermore, the endoscope system includes a condition detecting unit and a notifying unit. The condition detecting unit is provided to or near the lamp 22 and detects a predetermined condition relevant to the lamp. The notifying unit notifies an operator of the state of the lamp according to a result of detection performed by the condition detecting unit. The condition detecting unit is a temperature detector 27 or a power detector 51. The temperature detector 27 detects whether the temperature at or near the lamp is equal to or larger than a predetermined value. The power detector 51 detects whether current or voltage supplied or applied from the power supply to the lamp is equal to or smaller than a predetermined value.

Abstract: An object is imaged continuously during a first exposure time and a second exposure time shorter than the first exposure time. Weights, one of which decreases monotonously and the other of which increases monotonously, are applied to first and second resultant image signals under the condition that the sum of the weights is 1. The first and second image signals that have been weighted are added up, thus producing a synthetic picture signal. When a luminance level is low, the ratio of the first image signal, which has been produced during the longer exposure time, to the second image signal is increased. This results in an image demonstrating a high signal-to-noise ratio. When the luminance level is high, the ratio of the second image signal, which has been produced during the shorter exposure time, to the first image signal is increased.

Abstract: Provided is an endoscope system comprising an endoscope which incorporates an imaging element together with an element for determining the type of the imaging element; a light source apparatus, which includes a DMD in a light path from a light source lamp, for determining incidence or non-incidence of the illuminating light from the light source lamp on a mirror; a CPU which determines the type of imaging element based on the information provided by the type determining element and detects a time required by the imaging element for charge reading based on the determination result; and a DMD control circuit which controls the DMD at a charge reading timing of the imaging element corresponding to the charge reading time detected by the CPU, the endoscope system making it possible to extend the exposure time to a maximum regardless of the type of the endoscope, by controlling the light shielding time of illuminating light in accordance with the type of the imaging element.

Abstract: An endoscope system has a lamp 22 that emits illumination light with which an object is illuminated, and a power supply 24 that supplies power with which the lamp is lit. Furthermore, the endoscope system includes a condition detecting unit and a notifying unit. The condition detecting unit is provided to or near the lamp 22 and detects a predetermined condition relevant to the lamp. The notifying unit notifies an operator of the state of the lamp according to a result of detection performed by the condition detecting unit. The condition detecting unit is a temperature detector 27 or a power detector 51. The temperature detector 27 detects whether the temperature at or near the lamp is equal to or larger than a predetermined value. The power detector 51 detects whether current or voltage supplied or applied from the power supply to the lamp is equal to or smaller than a predetermined value.

Abstract: A first video signal is produced in a video signal processing circuit within a video processor by an imaging device provided in an endoscope, is put into a switching circuit, has the tone and the like corrected by a picture image correcting circuit within an outer peripheral apparatus provided outside the video processor and is converted to a second video signal electrically different from the first video signal. The second video signal is recorded and is displayed in a color monitor through a switching circuit. In case the outer peripheral apparatus is abnormal and a normal picture image is not displayed in the color monitor, by the operation of a forcibly set switch, the first video signal produced in the video signal processing circuit within the video processor will be quickly displayed in the color monitor without being passed through the outer peripheral apparatus.

Abstract: An apparatus comprises a washing water supply tank for supplying washing water to an endoscope placed on a washing and sterilizing bath and a sensor for determining whether or not the water supply tank needs washing or sterilizing. Further, in addition, the water supply tank is also washed and sterilized. A lamp and buzzer inform the user of a result of whether or not the water supply system needs washing and sterilizing.

Abstract: A device for cleaning pipe passages of medical devices comprises a brush having an elongated rod portion and a brush portion, a mechanism for holding and rotating the brush, a mechanism for reciprocating the brush in the pipe passage along the longitudinal axis of the brush, and a unit for controlling the rotation of the brush as well as the reciprocation of the brush in the longitudinal direction thereof.