Abstract: An endoscope device includes a processor configured to calculate light source control information based on first information regarding a scope and second information regarding a light source device, and to control a light source of the light source device based on the light source control information. The second information includes a ratio of an amount of light emitted from a distal end of a reference scope to an amount of light emitted from the light source device to the reference scope.

Abstract: An endoscope light-source device includes a semiconductor laser light source, a first lens group that diverges a low-NA light component of light from the semiconductor laser light source and converges or collimates a high-NA light component of the light from the semiconductor laser light source, and a second lens group that focuses the light passing through the first lens group onto an end surface of a light guide. The first lens group includes at least one aspherical lens.

Abstract: An endoscope light source device includes: a plurality of solid-state light sources; a plurality of collimating lenses that respectively collimate light beams emitted from the plurality of solid-state light sources into substantially parallel light beams; a multiplexing optical member that multiplexes the light beams that have been collimated into substantially parallel light beams by the plurality of collimating lenses; at least one diaphragm disposed between at least one of the plurality of solid-state light sources and a corresponding at least one of the plurality of collimating lenses; and a focusing lens that focuses multiplexed light beams from the plurality of solid-state light sources and causes the light beams to enter an end surface of a light guide of an endoscope, wherein the at least one diaphragm blocks more peripheral light as an optical path length from each of the plurality of solid-state light sources to the focusing lens becomes smaller.

Abstract: An endoscope light-source device includes a semiconductor laser light source, a first lens group that diverges a low-NA light component of light from the semiconductor laser light source and converges or collimates a high-NA light component of the light from the semiconductor laser light source, and a second lens group that focuses the light passing through the first lens group onto an end surface of a light guide. The first lens group includes at least one aspherical lens.

Abstract: An endoscope light source device includes: a plurality of solid-state light sources; a plurality of collimating lenses that respectively collimate light beams emitted from the plurality of solid-state light sources into substantially parallel light beams; a multiplexing optical member that multiplexes the light beams that have been collimated into substantially parallel light beams by the plurality of collimating lenses; at least one diaphragm disposed between at least one of the plurality of solid-state light sources and a corresponding at least one of the plurality of collimating lenses; and a focusing lens that focuses multiplexed light beams from the plurality of solid-state light sources and causes the light beams to enter an end surface of a light guide of an endoscope, wherein the at least one diaphragm blocks more peripheral light as an optical path length from each of the plurality of solid-state light sources to the focusing lens becomes smaller.

Abstract: Provided is an endoscope light source apparatus including: first and second solid-state light sources that emit first and second light beams, respectively; a third solid-state light source that emits a third light beam that generates white light by being combined with the first and second light beams; an optical member that combines the first, second, and third light beams to generate a combined light; an optical filter that is provided so as to be insertable into/retractable from an optical path of the combined light; and a controller, wherein, in a first excitation-light illumination mode, the controller turns on the first and second solid-state light sources and weakly turns on the third solid-state light source, and, in a second excitation-light illumination mode, turns on the first solid-state light source, turns off the second solid-state light source, and weakly turns on the third solid-state light source.

Abstract: Provided is an endoscope light source apparatus including: first and second solid-state light sources that emit first and second light beams, respectively; a third solid-state light source that emits a third light beam that generates white light by being combined with the first and second light beams; an optical member that combines the first, second, and third light beams to generate a combined light; an optical filter that is provided so as to be insertable into/retractable from an optical path of the combined light; and a controller, wherein, in a first excitation-light illumination mode, the controller turns on the first and second solid-state light sources and weakly turns on the third solid-state light source, and, in a second excitation-light illumination mode, turns on the first solid-state light source, turns off the second solid-state light source, and weakly turns on the third solid-state light source.

Abstract: A clinker cooler (3) comprises a plurality of grates (5) arranged in adjacent and overlapping relation to each other for conveying hot cement clinker (11) supplied from a kiln (1). The grate (5) is formed with an air hole (20) through which air from a fan (8) is jetted toward the cement clinker via a compartment (16) to cool the cement clinker. A distribution chamber (13) is equipped to a part of the grate corresponding to a part of cement clinker which is not cooled sufficiently, and the air from the fan (14) is jetted to such part of cement clinker which is not cooled sufficiently. The quantity of air jetted from the distribution chamber is adjusted by varying a degree of opening of a damper (15).