書誌事項
- タイトル別名
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- Study on Precision Machining of Glass Lens Mold with Minute Structures (2nd Report)
- ビサイ コウゾウ オ ユウスル ガラスレンズ セイケイガタ ノ コウセイド カコウ ニ カンスル ケンキュウ ダイ2ホウ マイクロフレミル コウ オ ユウスル ヒジク タイショウ ヒキュウメン カナガタ ノ コウセイド カコウ
- —Ultraprecision Machining of Non-Axisymmetric Aspheric Glass Lens Mold with Micro Fresnel Shape—
- —マイクロフレネル溝を有する非軸対称非球面金型の高精度加工—
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In recent years, the demand of optical devices with complicated and highly accurate shape such as Fresnel lens and f-q lens is growing up in terms of miniaturization and improvement of information equipments. Moreover, the demand of glass lenses increases for the purpose of improving its heat resistance and optical performances. The study proposes a machining process for non-axisymmetric aspheric cemented tungsten carbide mold with minute structures, aiming at high precision machining. In the proposed process, the non-axisymmetric aspheric surfaces except for minute structures are at first machined by the spiral form grinding tool path with a spherical resinoid bonded diamond wheel. The machined surface center is corresponding to the center of the rotation axis of ultraprecision machine tool. Afterwards, the surfaces are ground for compensation, based on allover shape measurement interpolated by cubic spline. Then, minute structures are created on non-axisymmetric aspheric surfaces by the grinding with a disk type metal bonded diamond wheel. As a result, it is found that the proposed machining method has the potential of producing a high precision non-axisymmetric aspheric glass lens mold with minute structures effectively.
収録刊行物
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- 精密工学会誌
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精密工学会誌 76 (1), 85-89, 2010
公益社団法人 精密工学会
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詳細情報 詳細情報について
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- CRID
- 1390282679774746368
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- NII論文ID
- 130000302343
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- NII書誌ID
- AN1003250X
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- ISSN
- 1882675X
- 09120289
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- NDL書誌ID
- 10550606
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- データソース種別
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- JaLC
- NDL
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