Silver plate - Ginban

Japanese: 銀板 - ぎんばん
Silver plate - Ginban

...a method of increasing the sensitivity of photographic materials. When the photographic method was first published in 1839, the photosensitive material used was made by exposing a silver plate to iodine vapor (called a silver plate), and silver iodide was used as the photosensitive substance. This was called daguerreotype, or silver plate photography, but at the time, photography required exposure times of several tens of minutes, making it difficult to photograph moving subjects.

*Some of the terminology explanations that mention "silver plate" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…写真感光材料の感度を上昇させる方法。写真法が初めて公表された1839年当時使われた感光材料は,銀の板にヨウ素蒸気を当てて作ったもの(銀板と呼ばれる)で,感光物質にはヨウ化銀が用いられた。これはダゲレオタイプ,または銀板写真と呼ばれるが,当時の写真撮影には露出時間が何十分も必要で動体被写体の撮影は困難であった。…

※「銀板」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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