Abstract:
A light source device includes: excitation light sources configured to emit a plurality of excitation light including mutually different spectra; wavelength converting members configured to wavelength-convert the excitation light emitted from the excitation light sources into light having mutually different spectra and configured to be disposed in a common application region of the excitation light; and a light source control unit configured to switch a combination of the excitation light sources that are lighted among the excitation light sources based on the observation mode including a normal light observation mode and a special light observation mode to highlight a particular observation target input to an input unit, wherein light emitted from the wavelength converting members is used as illumination light, and the illumination light corresponding to the observation modes is emitted from a same emitting portion.
Abstract:
An illuminating device includes an illumination light generator configured to generate illumination pulses of coherent light, and a speckle modulator configured to modulate speckle caused by the coherent light. The illumination pulse generator repeatedly generates a single illumination pulse group including a plurality of illumination pulses as a repetitive illumination pulse group.
Abstract:
An endoscope apparatus includes an imager configured to detect reflected and scattered light of illumination light radiated to an observation object and output an imaging signal, the illumination light including light in three wavelength ranges corresponding to first, second, and third depth regions, and an image processor including an intermediate emphasis image generator configured to generate an intermediate emphasis image, based on a first emphasis image signal generated based on emphasis narrowband light, a first non-emphasis image signal generated based on non-emphasis narrowband, and image signals corresponding to all wavelength ranges not including the first emphasis and non-emphasis image signals, and a display image generator configured to generate a display image based on the intermediate emphasis image.
Abstract:
An endoscope apparatus includes an imager that outputs an imaging signal and an image processor that generates an emphasis image signal and a non-emphasis image signal based on the imaging signal. The emphasis image signal corresponds to emphasis narrow band light included in an emphasis wavelength range that includes at least one of a maximum wavelength that takes a maximum value of an optical absorption spectrum and a color-range largest wavelength that takes a largest value of the optical absorption spectrum. The non-emphasis image signal corresponds to non-emphasis narrow band light included in a non-emphasis wavelength range that excludes the emphasis wavelength range from three color ranges and that is included in a color range that does not include the emphasis narrow band light.
Abstract:
An illumination apparatus includes a light converter disposed on a distal end surface of a light guide, the light converter being configured to emit illumination light, which is generated by converting optical characteristics of primary light that is guided by the light guide, in a forward direction which is on the light converter side of the distal end surface, and in a backward direction which is on the light guide side of the distal end surface. The illumination apparatus further includes a light collector configured to collect backward illumination light into the light guide such that the backward illumination light is guided backward by the light guide, and a heat exhauster configured to convert the backward illumination light, which is guided by the light guide, to heat, and to exhaust the heat.