Micro-shape transcription method for producing optical-components

摘要

A micro-shape transcription method has preparing a mold (13) having a transcription face on which a concavo-convex pattern is formed, pressing the transcription face against a base material (14) 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( DEG C), a temperature for separating the mold from the base material as T2 ( DEG C), thermal expansion coefficients of the mold and the base material as alpha a and alpha b, 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): <DFG> <DF NUM="(1)">T1 ≥ T2 </DF> <DF NUM="(2)"> alpha a - alpha b .(T1 - T2).d ≤ 4 x 10<-2> </DF> </DFG> are simultaneously satisfied. <IMAGE>