近红外光的世界及其应用
什么是红外线？ 这是可见光谱（上图）。它是电磁波谱中唯一能被我们的眼睛识别的部分。可见光谱的波长范围为 380 至 750 纳米 (nm)。光谱左侧较短的波长（380nm）被识别为紫色，光谱右侧较长的波长（750nm）被识别为红色。我们的眼睛看不到高于或低于此范围的任何光。任何低于 380 纳米的光被称为紫外线 (UV)，任何高于 750 纳米的光被称为红外线 (IR)。 ...
什么是红外线？ 这是可见光谱（上图）。它是电磁波谱中唯一能被我们的眼睛识别的部分。可见光谱的波长范围为 380 至 750 纳米 (nm)。光谱左侧较短的波长（380nm）被识别为紫色，光谱右侧较长的波长（750nm）被识别为红色。我们的眼睛看不到高于或低于此范围的任何光。任何低于 380 纳米的光被称为紫外线 (UV)，任何高于 750 纳米的光被称为红外线 (IR)。 ...
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