摘要 |
There is disclosed mount arrangement for supporting a tapered light pipe (5) of a type having a relatively wide end (8), a relatively narrow end (7), and an outer surface (9). The mount arrangement includes: a support assembly (25) provided within a housing (13) and having a central bore (28) for receipt of a said light pipe (5) through the support assembly (25), the support assembly (25) being arranged for movement within the housing (13) along the axis of the bore (28), and having within said central bore (28) an array of inwardly directed convex bearing surfaces (33) arranged in spaced relation to one another around the central bore (28). The support assembly (25) is biased towards the relatively wide end (8) of the light pipe (5) so as to urge the convex bearing surfaces (33) into contact with the outer surface (9) of the light pipe (5). |