Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Optical fiber – waveguide – or preform
Reexamination Certificate
2006-01-24
2006-01-24
Vargot, Mathieu D. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Optical fiber, waveguide, or preform
C264S001310, C264S002700
Reexamination Certificate
active
06989114
ABSTRACT:
A micro-shape transcription method has preparing a mold having a transcription face on which a concavo-convex pattern is formed, pressing the transcription face against a base material softened by heating, then forcibly separating the mold from the base material to transcribe a reverse pattern of the concavo-convex pattern to the surface of the base material, wherein when assuming a temperature for pressing the mold against the base material as T1(° C.), a temperature for separating the mold from the base material as T2(° C.), thermal expansion coefficients of the mold and the base material as αaand αb, and the maximum distance between the transcription center of the transcription face and the concavo-convex pattern as d (mm), the following relations (1) and (2):in-line-formulae description="In-line Formulae" end="lead"?T1≧T2 (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?|αa−αb|·(T1−T2)·d≦4×10−2 (2)in-line-formulae description="In-line Formulae" end="tail"?are simultaneously satisfied.
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Asakura Hiroyuki
Korenaga Tsuguhiro
Umetani Makoto
Smith , Gambrell & Russell, LLP
Vargot Mathieu D.
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