| abstract |
An endoscope device according to the present inventionnaims to obtain tissue information of a desired depth nearnthe tissue surface of the living body tissue, wherein anlight source device (4) is configured of a xenon lamp (11)nfor emitting illumination light, a heat ray cut filter (12)nfor shielding heat rays from the white light, a diaphragmndevice (13) for controlling the light quantity of the whitenlight through the heat ray cut filter (12), a rotatingnfilter (14) comprising a first filter set for outputtingnframe sequence light having overlapping spectral propertiesnsuitable for color reproduction situated on the outer sectornand a second filter set for outputting narrow-band framensequence light having discrete spectral properties enablingnextraction of desired deep tissue information situated onnthe inner sector, for turning the illumination light intonframe sequence light, a condenser lens (16) for collectingnthe frame sequence light coming through the rotating filtern(14) onto the incident face of a light guide (15) disposednwithin the electronic endoscope (3), and a control circuitn(17) for controlling the rotation of the rotating filtern(14). |