| 摘要 |
PROBLEM TO BE SOLVED: To display the shape of an endoscope in a more stable state by inhibiting influence of magnetic field noises generated from a monitor. SOLUTION: An insulation sheet 12 made of a non-electroconductive material such as a polyester is provided on the outer surface of a monitor 5 for observation comprising a CRT. A magnetic shield plate 13 having magnetic field shielding effect made of an amorphous alloy or the like is provided outside the insulation sheet 12. Likewise, an insulation sheet 14 made of a material not electroconductive such as a polyester is provided on the outer surface of a monitor 10 comprising a CRT and a magnetic shield plate 15 having magnetic shielding effect made of an amorphous alloy or the like is provided outside the insulation sheet 14.
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