OPTICAL INTERFACE LIGHT GUIDE BODY HOLDING STRUCTURE

PROBLEM TO BE SOLVED: To prevent the crack and dislodgment of an optical interface light guide body and the trouble of internal circuits by static electricity. SOLUTION: This structure is to guide the light signal from the outside to the internal circuits of an electronic apparatus. A fitting hole 12, into which the optical interface light guide body 10 is fitted, is formed at the casing 11 of the electronic apparatus. Projections 17, 18 for thermal caulking are formed near the fitting hole. The optical interface light guide body 10 has a light guiding part 13 to be fitted into the fitting hole 12 and a flange part 14 on the circumference of the light guiding part 13. The dislodgment in both directions of the outside of the casing 11 and the inside thereof is prevented by thermally caulking and fixing the flange part 14 by the projections 17, 18. The flange part 14 closes the spacing between the casing 11 and the light guiding part 13 and, therefore, the route where the static electricity passes is long and the infiltration of the static electricity is suppressed. The trouble of the internal electronic circuits by static electricity is thus suppressed.