| 摘要 |
A device for measuring the concentricity of the core (21) of an optical fibre (19) relative to a reference axis (22), including a means for determining the position of the intersection between the reference axis (22) and an optical surface (23) at the end of the optical fibre (19), an injection means (17) for injecting light into the core (21) of the optical fibre (19), a lens (30) and a viewing means (4) for viewing the light emitted by the core (21) of the optical fibre (19) in a conjugated plane (5) of the optical surface (23), characterised in that the lens (30) has a numerical aperture sin ß smaller than the numerical aperture sin a of the optical fibre to be measured. |
