Abstract:
A first calculation unit calculates an acceleration factor of lifetime consumption of the light source with as case of a standard temperature and standard drive condition as a reference, a second calculation unit calculates a whole lifetime or remaining lifetime of individual light sources relative to a performance index of the individual light sources or a change rate of the performance index, a computation unit obtains an effective cumulative driving time at which the magnitude of influence imparted on the lifetime is equivalent with a case of driving at the standard temperature and standard drive condition, by calculating a time integral of the acceleration factor, and a recording unit records the effective cumulative driving time and the whole lifetime or remaining lifetime together with an optical output characteristic of the light source.
Abstract:
Even when a light source is driven under various conditions, an effective driving time is accurately calculated. A laser apparatus includes a light source, a power source which charges driving current to the light source, a control unit for controlling the power source, a first recording unit which calculates a life load rate of the light source and records the same in association with time, and a calculation unit which calculates, as an effective driving time, a time integration of the life load rate between a first time point, at which the laser apparatus is actually driven, and a second time point after the first time point, based on a recording result of the first recording unit.
Abstract:
The laser apparatus includes a laser oscillation part including a water-cooled plate, an air cooling machine including a radiator, a dehumidifier including a water-cooled plate, and a cooling water supply device including a cooling water pipe through which a cooling water is supplied. The air cooling machine and the dehumidifier are arranged in a housing. The cooling water pipe is branched so that the water-cooled plate in the laser oscillation part, the radiator, and the water-cooled plate in the dehumidifier are connected in parallel. The cooling water supply device supplies a common cooling water of the same temperature to the water-cooled plate in the laser oscillation part, the radiator, and the water-cooled plate in the dehumidifier.
Abstract:
An air-cooled laser device having a heat radiating structure capable of effectively radiating heat generated by a laser diode module and also radiating heat generated by a heating component other than the laser diode module, without being increased in size. The laser device has: laser diode modules; a heat-receiving plate horizontally-arranged, to which the laser diode modules are thermally connected; at least one L-shaped heat-transferring member extending inside the heat-receiving plate and bending at a right angle outside heat-receiving plate; a plurality of heat radiating fins attached to a vertical portion of the heat-transferring member so that each fin extends in a horizontal direction; and an axial fan for sending air to an upper space of the heat-receiving plate through between the fins. The air after flowing between the fins cools a heating component other than the laser diode module, positioned in the upper space, without changing the flow direction.