Scully, Scott, Murphy & Presser, P.C.
Endoscope system with antifogging heating of distal lens
An endoscope includes: a first lens located at a distal-most position, a part of the first lens being exposed outside; a movable lens barrel configured to be able to move, and configured to hold a movable lens disposed on a proximal end side with respect to the first lens; an actuator unit including a coil that drives the movable lens barrel and generates heat by receiving a supply of electric power; and a control section that outputs first electric power to the coil when holding the movable lens barrel at a predetermined position, and outputs second electric power larger than the first electric power to the coil when conducting heat generated from the coil to the first lens at the predetermined position.
OLYMPUS CORPORATION
A A G A A A A A A G A
A61B A61B G02B A61B A61B A61B A61B A61B A61B G02B A61B
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Toshiyuki
Fujii