…So halftoning was invented. In 1890, the American Levy brothers, Max Levy and Louis Levy, succeeded in creating a halftone screen, and since then it has been widely used. This has a limit to the resolution of the human eye, so if the dark parts of the original are replaced with large dots (called halftone dots) and the light parts with small halftone dots, and the halftone dots themselves are made smaller when printed, the human eye sees an image with light and shade, not halftone dots. … *Some of the terminology that mentions "Levy, L." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…そこで考案されたのが網版法である。1890年アメリカのレビー兄弟Max Levy,Louis Levyが網目スクリーンの製作に成功して以来,広く実用化した。これは人間の目の分解能に限界があり,原稿の濃い部分は大きい点(網点という),淡い部分を小さな網点におきかえ,網点自体を小さくして印刷すると,人間の目には網点ではなく濃淡のある画像として映ずる。… ※「Levy,L.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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