Abstract: According to one embodiment, a floodlight includes at least one light-emitting part, a thermal radiator, a reflector, and an adapter part attachable to and detachable from the thermal radiator. The light-emitting part includes an LED element. The thermal radiator is thermally connected to the light-emitting part. The reflector is provided on the thermal radiator, and controls luminous intensity distribution from the light-emitting part. The adapter part includes an extension reflector. The extension reflector is continuous with the reflector in a state where the adapter part is attached to the thermal radiator and, together with the reflector, controls the luminous intensity distribution from the light-emitting part to provide a luminous intensity distribution angle narrower than the reflector.

Abstract: According to one embodiment, a floodlight includes at least one light-emitting part, a thermal radiator, a reflector, and an adapter part attachable to and detachable from the thermal radiator. The light-emitting part includes an LED element. The thermal radiator is thermally connected to the light-emitting part. The reflector is provided on the thermal radiator, and controls luminous intensity distribution from the light-emitting part. The adapter part includes an extension reflector. The extension reflector is continuous with the reflector in a state where the adapter part is attached to the thermal radiator and, together with the reflector, controls the luminous intensity distribution from the light-emitting part to provide a luminous intensity distribution angle narrower than the reflector.

Abstract: A light source unit includes a light-emitting element 52 such as a LED provided on an inner surface of a side wall 4, and a reflecting surface 31 opposed to the light-emitting element 52 with the side wall 4 made parallel to a direction of radiation of the reflecting surface 31, the reflecting surface 31 formed of a part of a curved surface formed by a paraboloid of revolution or the like that is obtained by revolving a parabola and is spread and opened in the direction of radiation.

Abstract: A work assistance method previously stores at least a plurality of work items required for a predetermined project work, a plurality of work products to be achieved for the respective work items, and a plurality of tools for processing for the respective work products in a mutually related state. The stored work items are displayed for selection, and a particular work products related to the work items among the work products and a plurality of tools for processing are displayed on the same screen. A particular tool is selected from the plurality of tools and executed.

Abstract: A work assistance method previously stores at least a plurality of work items required for a predetermined project work, a plurality of work products to be achieved for the respective work items, and a plurality of tools for processing for the respective work products in a mutually related state. The stored work items are displayed for selection, and a particular work products related to the work items among the work products and a plurality of tools for processing are displayed on the same screen. A particular tool is selected from the plurality of tools and executed.

Abstract: An apparatus for feeding a variety of doping liquid used in doping-liquid treatment processes for electronic materials such as semiconductors and precision machinery components, and a feeding monitor apparatus. More specifically, it relates to an apparatus for stably feeding the doping liquid while detecting its volume, in the case where the doping liquid is fed from a liquid-filled hermetic returnable can to the doping liquid treatment process, and a feeding monitor apparatus is connected between the returnable can and treatment process.