Âng-goā-soàⁿ

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Thiàu khì: Se̍h chāmchhiau-chhoē
Ēng tiong âng-goā-soàⁿ hip ê kaú-á. (sek-tī ū choán-oāⁿ--koè)

Âng-goā-soàⁿ (infrared) tiāⁿ kán-chheng IR, sī 1 chióng tiān-chû-pho, i ê pho-tn̂g khah tn̂g khoàⁿ-ū-kng, khah té bô-soàⁿ-tiān-pho (radio wave). Khoàⁿ-ū-kng pho-tn̂g siōng tn̂g ê sekâng-sek, âng-goā-soàⁿ pho-tn̂g phēng âng-sek koh khah tn̂g, m̄-chiah hō chit hō miâ. Âng-goā-soàⁿ ê pho-tn̂g iok-liōng ùi 750 nm kaù 1 mm.