| 摘要 |
PROBLEM TO BE SOLVED: To provide an observation device with an insertion part in which the length of the tip of the insertion part in an axial direction can be reduced and the diameter of the insertion part can be made thin.SOLUTION: An endoscope device includes a slender flexible insertion part, an objective lens 24 provided to the tip 11 of the insertion part, an image pickup device 27 provided to the tip 11 of the insertion part for receiving light that passes through the objective lens 24, and a movable optical filter 33 provided between the objective lens 24 and the image pickup device 27 that includes a first area having first optical characteristics and a second area having second optical characteristics different from the first optical characteristics with high transmissivity, and causes the light that passes through the objective lens 24 to pass through the first area or the second area selectively.SELECTED DRAWING: Figure 2 |
