Abstract: An endoscope includes a scope provided with a hard portion at a distal end of a long flexible portion having flexibility; an image capturing portion housed in the hard portion and having an image sensor; a transmission cable inserted into the scope and conductively connected to the image sensor at a distal end via a substrate, and a voltage conversion device mounted on the substrate and outputting a constant voltage to the image sensor with respect to a input voltage input to the transmission cable.

Abstract: An endoscope includes a scope provided with a hard portion at a distal end of a long flexible portion having flexibility; an image capturing portion housed in the hard portion and having an image sensor; a transmission cable inserted into the scope and conductively connected to the image sensor at a distal end via a substrate, and a voltage conversion device mounted on the substrate and outputting a constant voltage to the image sensor with respect to a input voltage input to the transmission cable.

Abstract: An endoscope includes a scope provided with a hard portion at a distal end of a long flexible portion having flexibility; an image capturing portion housed in the hard portion and having an image sensor; a transmission cable inserted into the scope and conductively connected to the image sensor at a distal end via a substrate, and a voltage conversion device mounted on the substrate and outputting a constant voltage to the image sensor with respect to a input voltage input to the transmission cable.

Abstract: An endoscope system includes a first light source that emits visible light, a second light source that emits non-visible light, an image sensor that generates a first image including a subject through first photoelectric conversion using the visible light and generates a second image including a subject that emits fluorescence emission light due to excitation by the non-visible light through second photoelectric conversion using the non-visible light, and an output device that alternately switches between and outputs the first image and the second image. The second light source starts light emission by a predetermined time before start of the second photoelectric conversion due to driving of the driving circuit.

Abstract: An endoscope includes a scope provided with a hard portion at a distal end of a long flexible portion having flexibility; an image capturing portion housed in the hard portion and having an image sensor; a transmission cable inserted into the scope and conductively connected to the image sensor at a distal end via a substrate, and a voltage conversion device mounted on the substrate and outputting a constant voltage to the image sensor with respect to a input voltage input to the transmission cable.

Abstract: An endoscope system includes a first light source that emits visible light, a second light source that emits non-visible light, an image sensor that generates a first image including a subject through first photoelectric conversion using the visible light and generates a second image including a subject that emits fluorescence emission light due to excitation by the non-visible light through second photoelectric conversion using the non-visible light, and an output device that alternately switches between and outputs the first image and the second image. The second light source starts light emission by a predetermined time before start of the second photoelectric conversion due to driving of the driving circuit.

Abstract: A multilayer wiring board 1 includes an insulating layer 2, a copper wiring upper layer 3 and a copper wiring lower layer 4 laminated on both surfaces of the insulating layer 2, a through hole 5 pierced through the insulating layer 2 and at least one of the copper wiring layers, and a solder conductor 6 which is filled in the through hole 5 and makes connection and electric continuity between the copper wiring upper layer 3 and the copper wiring lower layer 4, where solder exposed surfaces on which a part of the solder conductor 6 is in contact with the copper wiring upper layer 3 or the copper wiring lower layer 4 and exposed to the outermost surface, and the surfaces of the copper wiring upper layer 3 and the copper wiring lower layer 4 are coated and integrated by plating films 8, and the metal-made plating films 8 are made of a metal having an ionization tendency greater than that of the solder conductor 6.

Abstract: Provided is an FPC, which comprises an insulating layer 2, wiring layers 3 and 4 laminated above and under the insulating layer 2, and a layer connection for connecting the wiring layers 3 and 4 electrically. The layer connection is constituted to comprise: a conductor press-fit hole 5 of a cone shape extending through the insulating layer 2 and the upper and lower wiring layers 3 and 4 and expanded to the side of one wiring layer 3; and a conductor 6 filled and press-fitted without any clearance in the conductor press-fit hole such that it is jointed to the wiring upper layer 3 deformed into the cone shape of the conductor press-fit hole 5, and is protruded from the other wiring lower layer 4 to have its surface partially coated and jointed.

Abstract: The present invention has an object to provide a tin-plated film and a method for producing the same, capable of preventing whiskers from being generated and simultaneously preventing the surface of a substrate to be plated, which is not covered with a tin-plated film, from discoloring due to oxidation, by which prevention of whisker generation, suppression of whisker growth, and prevention of discoloring of a substrate to be plated are compatible with simplified operations ensuring excellent productivity. The method is provided with the steps of removing a part of a tin-plated film formed on copper or copper alloy; processing to prevent discoloring of the copper or copper alloy from which the tin-plated film is removed; and applying heat energy to the tin-plated film of the copper or copper alloy which is processed to prevent discoloring.

Abstract: Provided is an FPC, which comprises an insulating layer 2, wiring layers 3 and 4 laminated above and under the insulating layer 2, and a layer connection for connecting the wiring layers 3 and 4 electrically. The layer connection is constituted to comprise: a conductor press-fit hole 5 of a cone shape extending through the insulating layer 2 and the upper and lower wiring layers 3 and 4 and expanded to the side of one wiring layer 3; and a conductor 6 filled and press-fitted without any clearance in the conductor press-fit hole such that it is jointed to the wiring upper layer 3 deformed into the cone shape of the conductor press-fit hole 5, and is protruded from the other wiring lower layer 4 to have its surface partially coated and jointed.

Abstract: An interlayer connection conductor 1 is formed of a substantially spherical interlayer connector that is formed by forced in through holes 108, in a thickness direction, on a flexible printed circuit board having wiring layers 106, 107 on at leas one surface of an insulating layer The interlayer connection conductor includes a small cylindrical piece of metal core 102 formed by cutting a metal fine wire and a solder metal 103 coated around the surface of the metal core.

Abstract: The present invention has an object to provide a tin-plated film and a method for producing the same, capable of preventing whiskers from being generated and simultaneously preventing the surface of a substrate to be plated, which is not covered with a tin-plated film, from discoloring due to oxidation, by which prevention of whisker generation, suppression of whisker growth, and prevention of discoloring of a substrate to be plated are compatible with simplified operations ensuring excellent productivity. The method is provided with the steps of removing a part of a tin-plated film formed on copper or copper alloy; processing to prevent discoloring of the copper or copper alloy from which the tin-plated film is removed; and applying heat energy to the tin-plated film of the copper or copper alloy which is processed to prevent discoloring.