Patent EP0440130A1 successfully refreshed from Google Patents.
EP0440130A1
Expired / Lapsed
EP
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Process for producing preforms for optical fibres with regular characteristics
Assignee: Nexans France SAS
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Filing: 1991-01-28
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Granted: —
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Expires: 2011-01-28
Abstract
Abstract Translated from French Une pièce de verre (4) cylindrique subit des passes de chauffage sur un tour de verrier. On repère et mesure d'éventuels défauts optogéométriques de cette pièce puis on corrige ces défauts par usinage de sa surface extérieure au cours d'une passe de correction sur le même tour de verrier. <IMAGE> A piece of cylindrical glass (4) undergoes heating passes on a glassmaker's lathe. We identify and measure any optogeometric faults in this part and then correct these faults by machining its outer surface during a correction pass on the same glassmaker's turn. <IMAGE>
Inventors
- 👤 Christian Le Sergent
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 12:59
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/012; C03B37/014; C03B37/018; C03B37/01884; C03B29/00; C03B29/02; C03B37/01205; C03B37/01225; C03B37/01228; C03B37/01853; C03B37/01876
Claims Analysis
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References Cited (Backward Citations)
US3811857A
Cited
WO1982000635A1
Cited
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