Optical conductor with glass fibre reinforced plastics outer sleeve - comprising two interfitting trough-shaped shells or hollow tube and containing loosely enclosed optical fibre protected against rupture

摘要

The optical conductor comprises a stable outer sleeve (2) in which an optical fibre or optical fibre bundle (1) is freely enclosed. The outer sleeve (2) is made of glass fibre reinforced plastics and comprises two interfitting trough-shaped shells (3), or a hollow tube with a longitudinal gap in its periphery which is wider than the dia. of the optical fibres (1). The optical fibres (1) may be surrounded by a wound covering of cushioning material, to prevent them contacting the inside surface of the outer sleeve (2). The outer sleeve (2) exhibits a high tensile strength with its dia. reducing under high loading, the glass fibres (1) also protected against compression or bending since they are free to move within the sleeve (2).