Abrading – Abrading process – Glass or stone abrading
Patent
1995-10-12
1998-04-28
Eley, Timothy V.
Abrading
Abrading process
Glass or stone abrading
451 57, 451 59, 451278, B24B 100
Patent
active
057437874
ABSTRACT:
A method of polishing an end surface of an optical fiber comprises tilting the central axis of a ferrule integrated with an optical fiber at a preselected angle .THETA. to the axis of rotation of a flat polishing member. A foremost end of the ferrule is then moved into contact with a flat polishing member to polish the foremost end of the ferrule and an end surface of the optical fiber. The foremost end of the ferrule is moved out of contact with the flat polishing member after the ferrule and the optical fiber have been polished into a flat plane. The central axis of the ferrule is then tilted at the angle .THETA. to the axis of rotation of a platen and at an angle .theta.=.THETA.+.DELTA. to a line normal to the surface of the platen, where .DELTA. is an angle of tilt of the rotational platen relative to a flat support surface supporting the rotational platen. Thereafter, the foremost end of the ferrule is moved into contact with a second polishing machine to polish the ferrule and the optical fiber. The ferrule is moved out of contact with the polishing member after the ferrule and the optical fiber have been polished into an oblique convex spherical surface so that an oblique angle defined between a plane normal to the central axis of the ferrule and a tangent plane at the intersection of the central axis of the ferrule and the surface is equal to angle .THETA..
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Ishiyama Keiichi
Iwakiri Toyokazu
Minami Kohji
Suzuki Nobuo
Tokita Hiroyuki
Eley Timothy V.
Seiko Instruments Inc.
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