Abstract: A 3D laser machining system comprises: a move state simulation unit that simulates a move state of a machining head using 3D CAD data about a workpiece containing material information defining thermophysical properties and 3D CAD data about a machining head under a condition of moving the machining head relative to the workpiece while the machining head is maintained at a predetermined angle a predetermined distance along a machining line in virtual space; a thermal fluid simulation unit that conducts non-stationary thermal fluid simulation for obtaining a temperature distribution in a region covering the workpiece to be changed by the move of the machining head outputting a laser beam; and a machining condition setting unit that sets a laser machining condition containing a relative move condition for the machining head and a laser beam output condition before laser machining on the basis of results of the simulations.

Abstract: A laser processing device configured to generally vertically irradiate a laser beam to a workpiece, and having a function for reducing an adverse effect due to a reflected laser beam from the workpiece. The laser processing device includes: a light condensing point moving part configured to move a focal point in an optical axis direction while irradiating the laser beam, by moving at least one of a processing head, an optical component of a light condense optical system, and a workpiece; and a light condensing point distance setting part configured to set a light condensing point distance between the light condensing point and a workpiece surface when the laser beam is started to be irradiated, wherein the light condensing point distance is set so that an amount of the reflected laser beam returned to the processing head through the optical system is not more than an allowable value.

Abstract: A laser processing device having a function for reducing intensity of a reflected laser beam, without stopping laser oscillation, in order to avoid a malfunction due to the reflected beam. A controller for controlling a laser oscillator has: a laser processing commanding part configured to output a laser processing command; a memory configured to store monitored intensity of the reflected beam and a laser output condition; a pre-processing commanding part configured to command a pre-processing prior to the laser processing command; a comparing part configured to compare the stored intensity of the reflected beam to a first judgment value and/or a second judgment value lower than the first judgment value; an output condition changing part configured to set or change the laser output command of the pre-processing command based on a comparison result; and a pre-processing terminating part configured to terminate the pre-processing based on a predetermined condition.

Abstract: A laser processing device for efficiently starting laser processing, while eliminating an adverse effect due to a reflected laser beam from a workpiece. The laser processing device detects an intensity of a reflected beam, which is a part of a laser beam irradiated from a laser oscillator and then is reflected by a workpiece surface, continuously increases an intensity of the irradiating laser beam over a predetermined period of time, selects a content of a next process, based on a temporal change in the intensity of the detected reflected beam, and executes the next process subsequent to the laser processing, based on the selected content of the next process.

Abstract: A 3D laser machining system comprises: a move state simulation unit that simulates a move state of a machining head using 3D CAD data about a workpiece containing material information defining thermophysical properties and 3D CAD data about a machining head under a condition of moving the machining head relative to the workpiece while the machining head is maintained at a predetermined angle a predetermined distance along a machining line in virtual space; a thermal fluid simulation unit that conducts non-stationary thermal fluid simulation for obtaining a temperature distribution in a region covering the workpiece to be changed by the move of the machining head outputting a laser beam; and a machining condition setting unit that sets a laser machining condition containing a relative move condition for the machining head and a laser beam output condition before laser machining on the basis of results of the simulations.

Abstract: An outdoor unit includes a casing having a bottom plate and is configured such that at least a part thereof is made of metal, a compressor provided within the casing to compress a flammable refrigerant, an outdoor heat exchanger provided within the casing to exchange heat between the refrigerant and outside air, and an electric heater provided on an upper surface of the bottom plate. The power consumption of the electric heater is 250 W or less.

Abstract: A laser processing device having a function for reducing intensity of a reflected laser beam, without stopping laser oscillation, in order to avoid a malfunction due to the reflected beam. A controller for controlling a laser oscillator has: a laser processing commanding part configured to output a laser processing command; a memory configured to store monitored intensity of the reflected beam and a laser output condition; a pre-processing commanding part configured to command a pre-processing prior to the laser processing command; a comparing part configured to compare the stored intensity of the reflected beam to a first judgment value and/or a second judgment value lower than the first judgment value; an output condition changing part configured to set or change the laser output command of the pre-processing command based on a comparison result; and a pre-processing terminating part configured to terminate the pre-processing based on a predetermined condition.

Abstract: A laser processing device having a function for efficiently starting laser processing, while eliminating an adverse effect due to a reflected laser beam from a workpiece. The laser processing device has: a reflected beam intensity detecting part for detecting an intensity of a reflected beam, which is a part of a laser beam irradiated from a laser oscillator and then is reflected by a workpiece surface; a beam intensity increasing part for continuously increasing an intensity of the irradiating laser beam over a predetermined period of time; a next process selecting part for selecting a content of a next process, based on a temporal change in the intensity of the detected reflected beam, during the intensity of the irradiating laser beam is increased; and an executing part for executing the next process subsequent to the laser processing, based on the selected content of the next process.

Abstract: A laser processing device configured to generally vertically irradiate a laser beam to a workpiece, and having a function for reducing an adverse effect due to a reflected laser beam from the workpiece. The laser processing device includes: a light condensing point moving part configured to move a focal point in an optical axis direction while irradiating the laser beam, by moving at least one of a processing head, an optical component of a light condense optical system, and a workpiece; and a light condensing point distance setting part configured to set a light condensing point distance between the light condensing point and a workpiece surface when the laser beam is started to be irradiated, wherein the light condensing point distance is set so that an amount of the reflected laser beam returned to the processing head through the optical system is not more than an allowable value.

Abstract: An outdoor unit includes at least one of a hexagonal sealing nut and attention attracting means that needs to be operated by an operator when removing a hexagonal sealing nut.

Abstract: An outdoor unit includes a casing having a bottom plate and is configured such that at least a part thereof is made of metal, a compressor provided within the casing to compress a flammable refrigerant, an outdoor heat exchanger provided within the casing to exchange heat between the refrigerant and outside air, and an electric heater provided on an upper surface of the bottom plate. The power consumption of the electric heater is 250 W or less.

Abstract: The present invention aims to prevent freezing of water droplets, etc. between a fan and a bell mouth. An outdoor unit for an air conditioner includes an eaves member that is placed above an air outlet formed by a bell mouth in close adherence with a front panel, and that protrudes toward a side of an outlet grille. Particularly, the eaves member is placed with a space from the outlet grille.

Abstract: The present invention aims to prevent freezing of water droplets, etc. between a fan and a bell mouth. An outdoor unit for an air conditioner includes an eaves member that is placed above an air outlet formed by a bell mouth in close adherence with a front panel, and that protrudes toward a side of an outlet grille. Particularly, the eaves member is placed with a space from the outlet grille.

Abstract: A shadow mask spring for a color cathode ray tube having a generally rectangular shadow mask structure including a shadow mask and a support frame for holding the shadow mask. Shadow mask springs serve for holding the support frame inside a panel having a phosphor screen adjacent thereto and engage with panel pins for holding the shadow mask structure. Each of the shadow mask springs includes L-shaped base plate and a joined plate secured to one end of the base plate. The base plate has a phosphor screen side metal portion and an electron gun side metal portion with the phosphor screen side metal portion having a smaller thermal expansion coefficient than that of the electron gun side metal portion. An other end of the base plate is secured to a side of the support frame.

Abstract: In order to prevent doming effect in a shadow mask of a color cathode ray tube caused by thermal expansion of the shadow mask structure produced by heating of the shadow mask due to impingement of the electron beam thereon, the shadow mask is provided with a skirt portion along at least one side thereof. The skirt portion includes a long projection portion where the shadow mask is welded to the frame, an adjacent inclined portion which decreases in length in a direction away from the projection portion. Further, a short portion is disposed therebetween the inclined portion. The inclined portion decreases in length linearly or non-linearly.

Abstract: In order to prevent doming effect in a shadow mask of a color cathode ray tube caused by thermal expansion of the shadow mask structure produced by heating of the shadow mask due to impingement of the electron beam thereon, the skirt portion of the shadow mask is provided, along at least one side thereof, with a long projection portion where the shadow mask is welded to the frame, an adjacent inclined portion which decreases in length toward the corner of the shadow mask and a short portion disposed therebetween the inclined portion and the corner. The inclined portion may decrease in length linearly or non-linearly.

Abstract: The present invention relates to a high-strength porous film or sheet consisting essentially of a high-molecular-weight polyethylene resin having a viscosity-average molecular weight of not less than 300,000, wherein the said film has a thickness of 5 to 50 .mu.m, an air permeability of 200 to 1,000 sec/100 cc, a porosity of 10 to 50% and a pin puncture strength of not less than 600 gf/25 .mu.m, and a process for producing the said film.

Abstract: After exposure of all frames of a film contained in a lens-fitted photographic film, a wall portion of a film take-up chamber of the film package is removed, thereby to provide a film removal opening, through which the exposed film is drawn out directly from the film package. In the film take-up chamber, a cassette or a take-up spool is disposed for winding up the exposed film. So as not completely to wind the exposed film into the cassette, a film arresting member is provided. A film package holder disposed at a film entrance of a film processor can selectively hold the film package or a film cassette taken out from a camera.

Abstract: After exposure of all frames of a film contained in a lens-fitted photographic film, a wall portion of a film take-up chamber of the film package is removed, thereby to provide a film removal opening, through which the exposed film is drawn out directly from the film package. In the film take-up chamber, a cassette or a take-up spool is disposed for winding up the exposed film. So as not completely to wind the exposed film into the cassette, a film arresting member is provided. A film package holder disposed at a film entrance of a film processor can selectively hold the film package or a film cassette taken out from a camera.

Abstract: A main body of a lens-fitted photographic film unit is provided with a film wind-up mechanism, a taking lens and a shutter mechanism. The main body with an unexposed film incorporated is covered by a front cover and a rear cover, which are directly attached to each other by arresting claws in holes formed thereon. The main body is positioned by being held fixedly between the two covers in order to prevent the main body from being damaged when the two covers are removed. In a preferred embodiment, the main body is provided with an electronic flash device, which is operated in synchronism with a shutter blade by use of an X contact. A pair of terminals of metal plates extend toward, and are in contact with, a printed circuit board which is removably supported on the main body by cooperation of supporting members and a supporting plate, both of which are formed outside a light-shielding tube of the main body.