spectral sensitization

Japanese: spectral sensitization(英語表記)spectralsensitization
spectral sensitization

...In 1873, the German Hermann Wilhelm Vogel (1834-98) discovered that adding certain dyes to photographic emulsions makes them sensitive to longer wavelengths of light. This widening of the range of color light to which an emulsion is sensitive is called spectral sensitization. The discovery of spectral sensitization led to the production of orthophotographic plates and orthofilms that are sensitive to blue to yellow color light, as well as panchromatic materials that are sensitive to the entire visible range. The most important dyes used in spectral sensitization of photographic emulsions are cyanine dyes.

*Some of the terminology that mentions "spectral sensitization" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…写真乳剤にある種の色素を加えると乳剤が長波長の光にも感光するようになることは,1873年ドイツのフォーゲルHermann Wilhelm Vogel(1834‐98)によって発見された。このようにして乳剤の感光する色光の領域を広げることを分光増感,あるいはスペクトル増感spectral sensitizationというが,分光増感の発見によって青から黄の色光に感ずるオルソ乾板,オルソフィルム,また可視域全般に感ずるパンクロ材料が製造されるようになった。 写真乳剤の分光増感に使われる色素でもっとも重要なものはシアニン色素である。…

※「spectral sensitization」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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