US 2017/0319053 A1Published application

Illumination apparatus, endoscopic system, and color correction apparatus

AssigneeOlympus Corporation

InventorsHiroyuki KAMEE, Hiromasa FUJITA, Masahiro NISHIO

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Abstract

An illumination apparatus in an endoscopic system includes a light source unit having lasers with different peak wavelengths, the lasers being divided by peak wavelength into narrow band light source groups, a color imaging unit that detects the illumination color of illumination light, a memory that stores an appropriate illumination color for each narrow band light source group, an output calculator that, for each narrow band light source group, compares the illumination color obtained upon light emission by the lasers belonging to the narrow band light source group with the appropriate illumination color of the narrow band light source group and calculates an appropriate output for each of the lasers belonging to the narrow band light source group, and a light source controller that controls the lasers on the basis of the calculated appropriate output.

Claims17

Dependent claims

An illumination apparatus comprising:

a light source unit comprising a plurality of narrow band light sources with different peak wavelengths, the plurality of narrow band light sources being divided by peak wavelength into a plurality of narrow band light source groups, and each narrow band light source group that comprises a plurality of the narrow band light sources being designated as a type one narrow band light source group;
a detector configured to detect an illumination color of illumination light obtained by light emission of the light source unit;
a memory configured to store a first appropriate illumination color for each type one narrow band light source group;
an output calculator configured, for each type one narrow band light source group, to compare the first appropriate illumination color of the type one narrow band light source group with the illumination color detected by the detector upon the plurality of narrow band light sources belonging to the type one narrow band light source group emitting light and to calculate an appropriate output for each narrow band light source belonging to the type one narrow band light source group;
and
a light source controller configured to control the plurality of narrow band light sources included in the light source unit on a basis of the appropriate output calculated by the output calculator.

3 more elements

Dependencies are inferred from the claim text.