| 摘要 |
<p>A fibre optic device (11) comprising a housing (12), a fibre optic cable (13), a light unit (17) and a lens (15) for a beam of controlled light extending between the light unit (17) and the cable (13) comprising: a carrier (19) having a light transmitting path (B) through the carrier (19) incorporating the lens (15), one end of the carrier (19) defining a first end (21) of the light path (B), the other end of the carrier (19) to the one end defining a second end (22) to the light path (B); a light unit (17) having a working surface (25) juxtaposed with the first end (21) of the light path (B); the carrier (19) or the light unit (17) having an outside surface region (23) in the form of an outwardly convex band extending at least part way around the carrier (19) or the light unit (17), the surface region (23) further lying generally transverse the light transmitting path (B) or a coaxial extension thereof; the region (23) having a centre of curvature (24) lying on or near the light transmission path (B) or an extension thereof; the overall external dimension (D') of the surface region (23) being a close fit within an overall internal dimension (D) of the inside (12') of the housing (12); a fibre optic cable (13) having an end (16) juxtaposed with the second end (22) of the light path (B).</p> |
