8 September 1995 Aspect of glass softening by master mold
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Parabolic mirror segments are produced from flat glass plates, and the glass plates are softened to parabolic surface by master mold. In the softening of the glass, the closeness of fit between the glass and the master mold will vary according to the surface tension of the glass, and it will influence the precision of the softening process. This problem brings about the necessity of improving the precision of the process.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Koro Shishido, Masao Sugiura, Tetsuo Shoji, "Aspect of glass softening by master mold", Proc. SPIE 2536, Optical Manufacturing and Testing, (8 September 1995); doi: 10.1117/12.218449; https://doi.org/10.1117/12.218449

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