High-Accuracy Glass Molding Press for Ultrathin Fresnel Lenses
| Project/Area Number |
19360055
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Tohoku University |
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Principal Investigator |
YAN Jiwang Tohoku University, 大学院・工学研究科, 准教授 (40323042)
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| Co-Investigator(Kenkyū-buntansha) |
厨川 常元 東北大学, 大学院・工学研究科, 教授 (90170092)
吉原 信人 東北大学, 大学院・工学研究科, 助教 (80374958)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2009: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2008: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2007: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
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| Keywords | 光学ガラス / フレネルレンズ / プレス成形 / 金型 / 超精密切削 / 微細形状転写 / 成形加工 / 微細形状 / 表面転写 |
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| Research Abstract |
Recently, the needs for glass Fresnel lenses is increasing for the purpose of miniaturization of optical systems. In this study, molds for high-temperature glass molding were developed and molding experiments for ultra-thin Fresnel lenses were performed. The glass flowing mechanism, stress/strain distribution, and the atomic diffusion phenomena at the interface among the glass, the release agent coating and the mold were investigated by experiments and numerical simulation. Process optimization was performed for improving the service life of the molds.
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Report
(4 results)
Research Products
(32 results)
