| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of needing to individually provide observation optical systems and an illumination optical system and having a factor of causing pain when inserting an insertion part in celom due to the large outer diameter of the insertion part in an endoscope device for observing an observation object part by a plurality of observation optical systems with different visual field ranges. SOLUTION: This endoscope device has the illumination optical system 25 for illuminating the observation object part, and two observation optical systems 23, 24 for observing an observation object from different visual field directions. An emission end part with an illumination lens of the illumination optical system 25 is disposed between observation windows having objective lenses 23a, 24a, respectively provided at two observation optical systems 23, 24, and the illumination range of the illumination optical system 25 covers the observation visual field directions of the observation optical systems 23, 24.
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