LIVING BODY OBSERVATION EQUIPMENT

摘要

White light from a lamp (11) is turned into a wideband frame sequential illumination light of R, G or B through the R, G, B filters of a rotary filter (14), and the mucous membrane of a living body in a body cavity is irradiated with the illumination light through an electronic endoscope (2), and imaged sequentially by a CCD (25). Output signal from the CCD (25) is switched sequentially by a selector in a filter circuit (36) and separated into a signal component corresponding to the spatial frequency component of the structure of a mucous membrane of a living body by slew for the R signal, BPF for the G signal and HPF for the B signal. Image signal of an image for making the structure of a mucous membrane of a living body identifiable easily is generated by the separation.