書誌事項
- タイトル別名
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- Optimizing the Cutting Processes of Mold Dies to Improve Optical Characteristics on Fresnel Screens.
- セイケイ カナガタ セッサク プロセス サイテキカ ニヨル フレネル スクリー
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抄録
An experimental study of precision cutting of molding dies using single crystal diamond cutting tools for large Fresnel screens (size: T3×921×714 mm, Fresnel angle: 0.004-55.0), for improving the optical characteristics of the screens is described. The conclusions are as follows: (1) A burr is generated at the shoulder of the grooves during cutting, which causes compressed chip material to accumulate and laterally compress both sidewalls of the grooves; (2) The burr generation is suppressed by increase of the rake angle of the diamond cutters, decrease of the down feed rate, and reduction of stock removal; (3) Generation of a color corn on the Fresnel screen is caused by light escaping through non-lens surfaces; this is avoided by making the non-lens surfaces semi-transparent where the surface roughness is around 1μm Rmax Through use of the above-mentioned information to improve the cutting process, desirable optical characteristics were achieved for Fresnel screens used in projection TVs.
収録刊行物
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- 日本機械学会論文集C編
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日本機械学会論文集C編 63 (611), 2544-2551, 1997
一般社団法人 日本機械学会
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キーワード
詳細情報
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- CRID
- 1390001206329314304
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- NII論文ID
- 110002385146
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- NII書誌ID
- AN00187463
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- COI
- 1:CAS:528:DyaK2sXlvF2it74%3D
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- ISSN
- 18848354
- 03875024
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- HANDLE
- 10191/5827
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- NDL書誌ID
- 4267116
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可