Abstract: The present invention relates to a sensor device for determining alignment/misalignment of a laser beam relative to a gas nozzle of a laser machining head which comprises a sensor housing provided with mounting means adapted to mount the housing to a laser machining head, a camera device comprising a camera, the camera device is provided in the sensor housing, so that the camera faces the tip of the gas nozzle when the sensor housing is mounted to the laser machining head for visualizing an orifice of the gas nozzle and a pilot laser simultaneously, and output means for outputting image signals obtained by the camera.

Abstract: The present invention relates to a sensor device for determining alignment/misalignment of a laser beam relative to a gas nozzle of a laser machining head which comprises a sensor housing provided with mounting means adapted to mount the housing to a laser machining head, a camera device comprising a camera, the camera device is provided in the sensor housing, so that the camera faces the tip of the gas nozzle when the sensor housing is mounted to the laser machining head for visualizing an orifice of the gas nozzle and a pilot laser simultaneously, and output means for outputting image signals obtained by the camera.

Abstract: An adjustable tree stand assembly of the present invention is used by hunters and naturalists. The assembly presents a support frame of a generally rectangular configuration having a first support member to be connected to a tree and an arm extending in cantilevered fashion to a housing adaptable to receive a seat and seat frame assembly. The seat and seat frame assembly includes a seat portion, a back support portion and a leg or pin extending from the seat portion to be engaged in the housing. An adjustable shooting rail is connected to and extends from the seat and seat frame assembly. The housing is further connected to a platform for supporting the hunter.