Abstract: A distal end unit of an endoscope includes: a distal end frame body that is constituted by a resin molded article configuring a molded interconnect device, that is provided with an image pickup unit containing room, and that is provided with an observation opening portion that opens the image pickup unit containing room on a distal end surface exposed to an exterior; a metal layer that is provided along a flat surface of the observation opening portion; a cover glass that closes the observation opening portion; a solder layer that is bonded to the metal layer and that holds the cover glass on the distal end frame body; and an adhesive layer that covers the solder layer, the metal layer is provided at a position corresponding to a groove provided on the flat surface, and the solder layer is disposed in an interior of the groove.

Abstract: An endoscope can include an internal member provided at a distal end of an insertion portion a conductive external member fitted over the internal member and electrically connected to a ground. The endoscope can also include an image pickup instrument fixed to the internal member, and the image pickup instrument can include a lens. The endoscope can include an electrical connection part having a first end portion connected to the conductive member and a second end portion connected to the external member, the electrical connection part being configured to electrically connect the conductive member and the external member, a conductor wire including a third end portion electrically connected to the first end portion, and a fourth end portion that passes through an opening formed in the external member.

Abstract: The disclosed technology is directed to an endoscopic apparatus comprises an endoscope having a cable connected to an electronic circuit part of the endoscope. The cable includes an elongated covering and an elongated component configured to be concentrically engaged with the elongated covering. A securing member is used to bind and to secure the elongated covering and the elongated component to one another. The elongated covering includes at least one recess formed on an outer circumferential area of the elongated covering on which the securing member binds and secures the elongated covering. The securing member has a portion that sinks in the at least one recess and secures the elongated covering and the elongated component that is exposed through the at least one recess.

Abstract: A distal end unit of an endoscope includes: a distal end frame body that is constituted by a resin molded article configuring a molded interconnect device, that is provided with an image pickup unit containing room, and that is provided with an observation opening portion that opens the image pickup unit containing room on a distal end surface exposed to an exterior; a metal layer that is provided along a flat surface of the observation opening portion; a cover glass that closes the observation opening portion; a solder layer that is bonded to the metal layer and that holds the cover glass on the distal end frame body; and an adhesive layer that covers the solder layer, the metal layer is provided at a position corresponding to a groove provided on the flat surface, and the solder layer is disposed in an interior of the groove.

Abstract: An endoscope includes a distal end portion in which an optical unit and a treatment instrument channel are held such that a photographing optical axis, a central axis of the distal end portion, and a central axis of the treatment instrument channel are linearly aligned When viewed from an end face of the distal end portion. The first magnet and the second magnet are arranged at non-rotationally-symmetric positions with respect to the photographing optical axis, and a region of the optical unit, which is on a side where a distance between the first magnet and the second magnet on an arc of a circle around the photographing optical axis is short, faces the treatment instrument channel.

Abstract: An endoscope includes: an objective optical system including a lens, allowing light from an imaging subject to be incident on a distal end surface, and focusing the light onto an image-capturing surface of an image-capturing element; an elongated light guide provided adjacent to a side of the system and guiding illumination light to be emitted from a distal end; and an optically transparent distal end cover disposed at a position where the distal end of the guide is covered, wherein the distal end surface is located farther forward than the distal end of the guide, a notched portion is provided at a distal-end outer edge of a side surface of the system, the side surface being adjacent to the guide, so that the system is narrower toward a front side from the distal end of the guide, and the cover is provided so as to bulge toward the notched portion.

Abstract: A linear actuator for endoscope includes: a movable frame made of a magnetic material; a fixed frame in which the movable frame is provided so as to be movable forward and backward, the fixed frame being made of a non-magnetic material; two coils formed by being wound on an outer surface of the fixed frame, the two coils being disposed side by side in a longitudinal axis direction; a permanent magnet disposed in a manner stacked and superimposed on the two coils; and two yokes respectively disposed at a front and a back of the permanent magnet and the two coils.

Abstract: The disclosed technology is directed to an endoscopic apparatus comprises an endoscope having a cable connected to an electronic circuit part of the endoscope. The cable includes an elongated covering and an elongated component configured to be concentrically engaged with the elongated covering. A securing member is used to bind and to secure the elongated covering and the elongated component to one another. The elongated covering includes at least one recess formed on an outer circumferential area of the elongated covering on which the securing member binds and secures the elongated covering. The securing member has a portion that sinks in the at least one recess and secures the elongated covering and the elongated component that is exposed through the at least one recess.

Abstract: An inspection device for image pickup apparatus includes: an image pickup apparatus including an image pickup device inside a first lens barrel; an angle-of-view conversion optical member made of a translucent resin member and including a first surface and a second surface that is an opposite surface of the first surface, the first surface being configured to closely contact a surface of a distal end lens, the surface of the distal end lens being exposed outside of the first lens barrel; a test chart including a chart surface provided so as to closely contact the second surface, and an image of the chart surface being picked up by the image pickup apparatus through the angle-of-view conversion optical member, and an illumination instrument that illuminates the chart surface.

Abstract: An inspection device for image pickup apparatus includes: an image pickup apparatus including an image pickup device inside a first lens barrel; an angle-of-view conversion optical member made of a translucent resin member and including a first surface and a second surface that is an opposite surface of the first surface, the first surface being configured to closely contact a surface of a distal end lens, the surface of the distal end lens being exposed outside of the first lens barrel; a test chart including a chart surface provided so as to closely contact the second surface, and an image of the chart surface being picked up by the image pickup apparatus through the angle-of-view conversion optical member, and an illumination instrument that illuminates the chart surface.

Abstract: An image pickup apparatus is an image pickup apparatus capable of acquiring an image of an object in gas and in liquid, the image pickup apparatus including: an image pickup optical system; an image pickup device; a controlling portion configured to make an in-gas judgment if a vignetting portion is detected in an image signal and make an in-liquid judgment if a vignetting portion is not detected in the image signal; and a display data generating portion configured to generate certain display data corresponding to in-gas image pickup if the in-gas judgment is made and generate other display data corresponding to in-liquid image pickup if the in-liquid judgment is made.

Abstract: An image pickup apparatus is an image pickup apparatus capable of acquiring an image of an object in gas and in liquid, the image pickup apparatus including: an image pickup optical system; an image pickup device; a controlling portion configured to make an in-gas judgment if a vignetting portion is detected in an image signal and make an in-liquid judgment if a vignetting portion is not detected in the image signal; and a display data generating portion configured to generate certain display data corresponding to in-gas image pickup if the in-gas judgment is made and generate other display data corresponding to in-liquid image pickup if the in-liquid judgment is made.

Abstract: An endoscope includes a first breakable portion provided between a part of an outer peripheral surface of a distal rigid section main body and a second inner peripheral surface, and including a fragile portion which is formed in a concaved-shape and which is more easy to break than any other part of the outer peripheral surface except for thereof. The endoscope includes a second breakable portion provided between a first inner peripheral surface and the second inner peripheral surface, and a third breakable portion provided between the first inner peripheral surface and a part of the outer peripheral surface of the distal rigid section main body, which differs from the fragile portion.

Abstract: An image pickup unit includes a dioptric system that reflects a luminous flux of an optical image incident on an optical lens group and performs optical path conversion, an image sensor in a bare state that is joined to the dioptric system, and includes a light receiving element that forms the optical image, and a light shielding member that is placed to be opposed to and cover at least surfaces around an optical axis of the optical lens group, except for a joining surface of the dioptric system to the image sensor, so that an air gap apart from the image sensor by a predetermined distance is provided, shields incidence of a harmful light onto the light receiving element, and is formed from a metal thin film.

Abstract: An image pickup unit according to the present invention, includes a solid-state image pickup device provided with a light receiving portion for receiving photographing light refracted and reflected by a reflection surface of an optical reflection member. The image pickup unit also includes a protection member which is surface-joined to and to protect at least the area of an effective reflection surface within the reflection surface by which the photographing light is refracted and made incident on the light receiving portion. Thereby, when the image pickup unit is provided in an electronic endoscope including the optical component for refracting and reflecting the photographing light, it is possible to improve the assembling property of the image pickup unit including the optical component, and possible to prevent the optical component from being damaged under various environment.

Abstract: An image pickup unit includes a dioptric system that reflects a luminous flux of an optical image incident on an optical lens group and performs optical path conversion, an image sensor in a bare state that is joined to the dioptric system, and includes a light receiving element that forms the optical image, and a light shielding member that is placed to be opposed to and cover at least surfaces around an optical axis of the optical lens group, except for a joining surface of the dioptric system to the image sensor, so that an air gap apart from the image sensor by a predetermined distance is provided, shields incidence of a harmful light onto the light receiving element, and is formed from a metal thin film.

Abstract: An endoscope in accordance with the present invention provides an endoscope having an image pickup apparatus and including a first connection portion provided on one side surface of a first solid-state image pickup device to connect the first solid-state image pickup device to a first circuit board, and a second connection portion provided on one side surface of a second solid-state image pickup device to connect the second solid-state image pickup device to a second circuit board, the first solid-state image pickup device and the second solid-state image pickup device being arranged in proximity to each other so that a side surface of the first solid-state image pickup device which does not have the first connection portion lies opposite to a side surface of the second solid-state image pickup device which does not have the second connection portion.

Abstract: An image pickup apparatus has a heater device including a heater and a temperature sensor. The heater device is arranged outside the effective light beam range of an objective optical system, with a predetermined air gap between the heater device and an inner circumferential surface of a rigid member that holds a cover glass. The heater device is pressed to the cover glass by an elastic member disposed at an outer circumferential portion of a protruding frame that holds a lens at a distal end. An electrical connection portion of the heater and an electrical connection portion of the temperature sensor of the image pickup apparatus are disposed facing each other with respect to an optical axis, on a proximal end side that is further to the rear than a distal end face of a lens on a distal end side of a front group lens unit that is a side on which a height of an effective light beam of the objective optical system is relatively low.

Abstract: An image pickup apparatus has a heater device including a heater and a temperature sensor. The heater device is arranged outside the effective light beam range of an objective optical system, with a predetermined air gap between the heater device and an inner circumferential surface of a rigid member that holds a cover glass. The heater device is pressed to the cover glass by an elastic member disposed at an outer circumferential portion of a protruding frame that holds a lens at a distal end. An electrical connection portion of the heater and an electrical connection portion of the temperature sensor of the image pickup apparatus are disposed facing each other with respect to an optical axis, on a proximal end side that is further to the rear than a distal end face of a lens on a distal end side of a front group lens unit that is a side on which a height of an effective light beam of the objective optical system is relatively low.

Abstract: An image pickup unit according to the present invention, includes a solid-state image pickup device provided with a light receiving portion for receiving photographing light refracted and reflected by a reflection surface of an optical reflection member. The image pickup unit also includes a protection member which is surface-joined to and to protect at least the area of an effective reflection surface within the reflection surface by which the photographing light is refracted and made incident on the light receiving portion. Thereby, when the image pickup unit is provided in an electronic endoscope including the optical component for refracting and reflecting the photographing light, it is possible to improve the assembling property of the image pickup unit including the optical component, and possible to prevent the optical component from being damaged under various environment.