| 摘要 |
A wiper mechanism (7), especially suitable for cleaning the curved lens (6) of a multirole turret, comprises a wiper (8) which is acted on centrifugally when the mechanism (7) is operated to cause the wiper (8)to be moved from a "parked" position (dashed outline) to an "operating" position (full outline) in which it wipes-clean the surface of the lens (6). |
