additive process

Japanese: additive process(英語表記)additiveprocess
additive process

... "Color films" made by dyeing or toning methods are films that are artificially colored with any color, while "true color films" optically reproduce natural colors on film, which is what we call "color films" today. There are two types of true color reproduction systems: additive and subtractive. The first practical and commercially successful additive process was Kinemacolor, patented in England by GA Smith in 1906 and used by the Natural Color Kinematograph Company, founded by Smith and C. Urban, to produce the first color film, "The Audience Hall at Derry" (1911). Kinemacolor is a two-color additive process that uses black-and-white film and color filters, and is shot and projected at 32 frames per second, twice the normal speed, which causes eye fatigue, quick wear of the film, and color shifts. ...

*Some terminology that mentions "additive process" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… 染色法や調色法による〈彩色映画〉は,フィルムに任意の色を人工的に着色したものであり,自然の色彩をフィルムに光学的に再現した〈天然色映画〉が,現在の〈カラー映画〉である。天然色再現法true‐color‐reproduction systemには,〈加色法additive process〉と〈減色法subtractive process〉があり,実際的で商業的に成功した最初の加色法は,G.A.スミスが1906年にイギリスで特許をとり,スミスとC.アーバンが設立したナチュラル・カラー・キネマトグラフ社を通じて活用した〈キネマカラー〉で,最初のカラー映画《デリーの謁見所》(1911)が作られた。〈キネマカラー〉は,白黒フィルムとカラーフィルターを使う2色加色法で,ふつうの速度の2倍,1秒に32コマの速度で撮影,映写され,目が疲労し,フィルムの損耗がはやく,色がずれるなどの欠点があった。…

※「additive process」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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