Polychromator

Japanese: polychromator
Polychromator

...It is also possible to give continuous relative motion between the spectral image and the slit in the wavelength direction, and to extract the spectral elements one by one. (3) Polychromator This can be considered a combination of the above two, and is an apparatus in which multiple exit slits are placed on the spectral focal plane of the spectrograph, allowing multiple desired spectral elements to be extracted simultaneously. (4) Spectrometer A device (spectrometer) that can determine wavelength by placing a dispersive element such as a prism or diffraction grating on a rotating platform and observing the dispersed light with a telescope.

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…スペクトル像とスリット間に波長方向に連続相対運動を与え,スペクトル素分を逐次取り出すこともできる。(3)ポリクロメーターpolychromator 上記2者を併合したものと考えてよく,分光写真器のスペクトル焦点面に複数個の出口スリットを設置し,目的スペクトル素分の複数個を同時に取り出しうるようにした装置。(4)分光計spectrometer 回転台にプリズムや回折格子などの分散素子を置き,分散光を望遠鏡で観測することによって波長決定ができる装置(分光計)。…

※「polychromator」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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