A tunable adapter for joining optical fiber connectors with other elements has a housing in which are contained a fixed disc member having a connector receiving jack mounted thereon, the axis of which is surrounded by an array of indexing member. The housing further contains a movable wall member having...http://www.google.es/patents/US6254278?utm_source=gb-gplus-sharePatente US6254278 - Optical fiber tunable connector adapter
