Abstract: A chip on submount includes: a submount including a first surface directed in a first direction; a covering layer mounted on the first surface, extending to intersect the first direction, and including a second surface directed in the first direction; a laser element mounted on the second surface and including: a third surface directed in the first direction; and a light emission unit positioned at an intermediate portion of the laser element along a second direction intersecting the first direction, extending in a third direction intersecting the first direction and second direction, and configured to output laser light in the third direction; and a bonding wire attached onto the third surface and configured to exert a pressing force on the laser element, the pressing force including a component force directed in a direction opposite to the first direction.

Abstract: A maintenance support system for a construction machine calculates the cumulative load of every component corresponding with the driving and working conditions of the construction machine by a load calculation means after simulating the driving and working conditions on the basis of production operating conditions by an operation simulation means, and forecasts the lifespan of the respective components by a lifespan calculation means on the basis of the cumulative load. Hence, a more accurate maintenance schedule can be established in comparison with a case where which component is to be maintained is determined on the basis of only the operating time.

Abstract: The present invention provides a maintenance support system for a construction machine that allows a components maintenance schedule to be accurately established. The system 1 calculates the cumulative load of every component corresponding with the driving and working conditions of the construction machine 3 by means of the load calculation means 13 after simulating the driving and working conditions on the basis of production operating conditions by means of the operation simulation means 12, and forecasts the lifespan of the respective components by means of the lifespan calculation means 14 on the basis of the cumulative load. Hence, a more accurate maintenance schedule can be established in comparison with a case where which component is to be maintained is determined on the basis of only the operating time as in the prior art. The possibility of an unexpected component anomaly occurring at an earlier stage than the predetermined lifespan can therefore be reduced.