Abstract: While steel sheets are positioned and held by a holding mechanism, a first laser beam is applied to a heating region of the steel sheet to space the steel sheet from the other steel sheet by a predetermined distance. A second laser beam is applied to a welding region to weld the steel sheets. An amount of heat applied by the first laser beam, a moving speed of the first laser beam, and a focused spot diameter of the first laser beam are set to keep the sheet irradiated with the first laser beam in an unmelted state and plastically deform the sheet.

Abstract: While steel sheets are positioned and held by a holding mechanism, a first laser beam is applied to a heating region of the steel sheet to space the steel sheet from the other steel sheet by a predetermined distance. A second laser beam is applied to a welding region to weld the steel sheets. An amount of heat applied by the first laser beam, a moving speed of the first laser beam, and a focused spot diameter of the first laser beam are set to keep the sheet irradiated with the first laser beam in an unmelted state and plastically deform the sheet.

Abstract: A welding condition monitoring device for monitoring the welding state of a welding work portion by taking an image thereof by an image sensor having a wide dynamic range and capable of taking an image covering a very bright welding portion and relatively dark portion. The monitoring device selectively emphasizes the outputs of the image sensor for any of luminance areas of the image taken by the image sensor using a sensor output characteristic table and can provide an image clearly showing both the very bright welding portion and the dark bead portion with a sufficient contrast allowing an observer to reliably recognize the objects in the image.

Abstract: A welding condition monitoring device for monitoring the welding state of a welding work portion by taking an image thereof by an image sensor having a wide dynamic range and capable of taking an image covering a very bright welding portion and relatively dark portion. The monitoring device selectively emphasizes the outputs of the image sensor for any of luminance areas of the image taken by the image sensor using a sensor output characteristic table and can provide an image clearly showing both the very bright welding portion and the dark bead portion with a sufficient contrast allowing an observer to reliably recognize the objects in the image.

Abstract: The lamp lighting circuit prevents a malfunction in which a lamp is tuned on momentarily during an initial stage of the power input. When the power source is lit, the malfunction prevention circuit prevents the activation of the oscillation circuit and/or the driving circuit 3a until when the output control circuit 5 starts normal operation and outputs the output control signal that controls the lighting/non-lighting of the lamp. When a lamp lighting command is input to the output control circuit, the output of the oscillation circuit is transmitted to the power control element via a driving circuit, and the power control element is driven. Consequently a voltage is generated on the secondary side coil of a boosting transformer so that the lamp 1 is lit.

Abstract: Electrodes 2, 3 are contact with an uppermost work W1 and energized with electricity so as to thermally expand an electrode contact portion of the work W1 or alternatively so as to thermally expand the electrode contact portion of the work W1 and a heat transfer portion of an adjoining work W2 to which heat is transferred from the electrode contact portion, and then the portions are contracted so as to form a deformed portion Q and the deformed portion Q is separated from the adjoining works W1, W2 and a gap H is formed between the works W1, W2 which are overlapped, and a laser beam L is irradiated at a position where the gap H is large enough to spread the vapor generated by the vaporization of the coating heated.

Abstract: Electrodes 2, 3 are contact with an uppermost work W1 and energized with electricity so as to thermally expand an electrode contact portion of the work W1 or alternatively so as to thermally expand the electrode contact portion of the work W1 and a heat transfer portion of an adjoining work W2 to which heat is transferred from the electrode contact portion, and then the portions are contracted so as to form a deformed portion Q and the deformed portion Q is separated from the adjoining works W1, W2 and a gap H is formed between the works W1, W2 which are overlapped, and a laser beam L is irradiated at a position where the gap H is large enough to spread the vapor generated by the vaporization of the coating heated.

Abstract: An image reader of the stepping image reading type, by time division using a fluorescent lamp using a dielectric barrier discharge, in which for each divided image uniform lamp emission is always enabled and which can react advantageously especially when the image read rate increases is achieved by providing an image reader having a lighting part with a fluorescent lamp which use a dielectric barrier discharge and produces pulse emission and an inverter circuit which feeds this fluorescent lamp; a CCD line sensor which continuously receives the reflection light reflected by a manuscript and emitted by this fluorescent lamp, time-divided; and a controller which resets a divided image which is recognized by this CCD line sensor and which controls the timing of the start of recognition of the next divided image and which sends this timing signal to the inverter circuit as well, where the controller, within a given time in which the CCD line sensor recognizes a divided image of the manuscript, sends a flashing si

Abstract: An organic electro luminescence element includes a substrate, an anode isolating film formed of an insulator on the substrate, an anode conductive layer formed on an upper surface of the substrate in an area partitioned by the anode isolating film, and an element isolating film formed of an insulator to enclose the anode isolating film and to be wider downward. Further, on the upper surface of the anode isolating film, a conductive film of the same type as the anode conductive layer is formed, which conductive layer is also covered by the element isolating film. Preferably, the anode isolating film has its upper surface made larger than the lower surface.

Abstract: A lighting apparatus comprising a branch circuit wherein a light receiving cycle signal branches into a synchronizing signal and a light controlling signal, a frequency recognizing circuit which wherein a lighting frequency is calculated from the light controlling signal and a light intensity controlling signal is outputted, and an inverter circuit which receives the light intensity controlling signal and turns on a lamp based on the light intensity controlling signal.

Abstract: The lamp lighting circuit prevents a malfunction in which a lamp is tuned on momentarily during an initial stage of the power input. When the power source is lit, the malfunction prevention circuit prevents the activation of the oscillation circuit and/or the driving circuit 3a until when the output control circuit 5 starts normal operation and outputs the output control signal that controls the lighting/non-lighting of the lamp. When a lamp lighting command is input to the output control circuit, the output of the oscillation circuit is transmitted to the power control element via a driving circuit, and the power control element is driven. Consequently a voltage is generated on the secondary side coil of a boosting transformer so that the lamp 1 is lit.

Abstract: A plurality of metal wire layers consisting of a first metal wire layer and a second metal wire layer are formed on a semiconductor substrate. A fluorinated silicate glass film serving as an interlayer metal dielectric film is formed between the first and second metal wire layers. A silicon nitride film serving as a protective insulation film is formed on the fluorinated silicate glass film layer. An adhesive layer made of, for example, a P-SiO film, P-SiON film, or PE-SiO film, is formed between the fluorinated silicate glass film and the silicon nitride film.

Abstract: A plurality of metal wire layers consisting of a first metal wire layer and a second metal wire layer are formed on a semiconductor substrate. A fluorinated silicate glass film serving as an interlayer metal dielectric film is formed between the first and second metal wire layers. A silicon nitride film serving as a protective insulation film is formed on the fluorinated silicate glass film layer. An adhesive layer made of, for example, a P—SiO film, P—SiON film, or PE-SiO film, is formed between the fluorinated silicate glass film and the silicon nitride film.

Abstract: A rare gas discharge lamp lighting apparatus has a power supply, a transformer, a switching element which is in series connected to the power supply and a primary side of the transformer, a rare gas discharge lamp connected on a secondary side of the transformer, and an input terminal for inputting a lamp lighting signal, a controlling circuit for outputting a controlling signal to the switching circuit by calculating at least one of output voltage, output current and output power, and an operating voltage input terminal to which voltage is impressed to initiate an operation of the controlling circuit based on the lamp lighting signal, wherein a delay element is provided between the input terminal and the operating voltage input terminal.

Abstract: An organic electro luminescence element includes a substrate, an anode isolating film formed of an insulator on the substrate, an anode conductive layer formed on an upper surface of the substrate in an area partitioned by the anode isolating film, and an element isolating film formed of an insulator to enclose the anode isolating film and to be wider downward. Further, on the upper surface of the anode isolating film, a conductive film of the same type as the anode conductive layer is formed, which conductive layer is also covered by the element isolating film. Preferably, the anode isolating film has its upper surface made larger than the lower surface.

Abstract: A lighting apparatus comprising a branch circuit wherein a light receiving cycle signal branches into a synchronizing signal and a light controlling signal, a frequency recognizing circuit which wherein a lighting frequency is calculated from the light controlling signal and a light intensity controlling signal is outputted, and an inverter circuit which receives the light intensity controlling signal and turns on a lamp based on the light intensity controlling signal.

Abstract: A welding condition monitoring device for monitoring the welding state of a welding work portion by taking an image thereof by an image sensor having a wide dynamic range and capable of taking an image covering a very bright welding portion and relatively dark portion. The monitoring device selectively emphasizes the outputs of the image sensor for any of luminance areas of the image taken by the image sensor using a sensor output characteristic table and can provide an image clearly showing both the very bright welding portion and the dark bead portion with a sufficient contrast allowing an observer to reliably recognize the objects in the image.

Abstract: While steel sheets are positioned and held by a holding mechanism, a first laser beam is applied to a heating region of the steel sheet to space the steel sheet from the other steel sheet by a predetermined distance. A second laser beam is applied to a welding region to weld the steel sheets. An amount of heat applied by the first laser beam, a moving speed of the first laser beam, and a focused spot diameter of the first laser beam are set to keep the sheet irradiated with the first laser beam in an unmelted state and plastically deform the sheet.

Abstract: A rare gas discharge lamp lighting apparatus has a power supply, a transformer, a switching element which is in series connected to the power supply and a primary side of the transformer, a rare gas discharge lamp connected on a secondary side of the transformer, and an input terminal for inputting a lamp lighting signal, a controlling circuit for outputting a controlling signal to the switching circuit by calculating at least one of output voltage, output current and output power, and an operating voltage input terminal to which voltage is impressed to initiate an operation of the controlling circuit based on the lamp lighting signal, wherein a delay element is provided between the input terminal and the operating voltage input terminal.

Abstract: A plurality of metal wire layers consisting of a first metal wire layer and a second metal wire layer are formed on a semiconductor substrate. A fluorinated silicate glass film serving as an interlayer metal dielectric film is formed between the first and second metal wire layers. A silicon nitride film serving as a protective insulation film is formed on the fluorinated silicate glass film layer. An adhesive layer made of, for example, a P—SiO film, P—SiON film, or PE-SiO film, is formed between the fluorinated silicate glass film and the silicon nitride film.