Variable reference blocking apparatus and method of use

Described is a variable reference blocking apparatus for blocking an optical article (5). The apparatus comprises an adjustable ring unit (11) having a plurality of concentric members (19,19c,19i) positioned about a central axis. Each concentric member (19,19c,19i) generally comprises a lip region (...

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Bibliographische Detailangaben
Hauptverfasser:	Monaghan, James, Taylor, Bruce, Gelb, Brad
Format:	Patent
Sprache:	eng
Schlagworte:	DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING PERFORMING OPERATIONS POLISHING TRANSPORTING
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Beschreibung
Zusammenfassung:	Described is a variable reference blocking apparatus for blocking an optical article (5). The apparatus comprises an adjustable ring unit (11) having a plurality of concentric members (19,19c,19i) positioned about a central axis. Each concentric member (19,19c,19i) generally comprises a lip region (17) on its upper end that is capable of receiving at least a portion of a front face of the optical article (5). The apparatus further comprises a moveable base (13) in which its upper portion is coupled with a removable insert (7). The removable insert (7) is generally positioned to be centered about the front face of the optical article (5).