採 光(さいこう)

さいこう

noun

natural lighting; daylighting

1. natural lighting; daylighting

The design or practice of letting natural light into a building through windows, skylights, or other openings. An important consideration in architecture and interior design.

採光(さいこう)のいい部屋(へや)だ。

This room has good natural lighting.

大(おお)きな窓(まど)で採光(さいこう)を確保(かくほ)した。

Large windows ensure sufficient natural lighting.

この設計(せっけい)は採光(さいこう)と換気(かんき)を両立(りょうりつ)させている。

This design achieves both natural lighting and ventilation.

採光(さいこう) combines 採(さい) (to gather) and 光(こう) (light) — literally "gathering light."

Common collocations

採光(さいこう)がいい/わるい — good/poor natural lighting
採光(さいこう)を確保(かくほ)する — to secure natural lighting
採光(さいこう)窓(まど) — window for natural lighting

In Japanese building regulations, residential rooms must meet minimum 採光(さいこう) standards. Real estate listings frequently mention 採光(さいこう) as a selling point, especially for south-facing rooms (南向(みなみむ)き).

Related Words

Related: 吹(ふ)き抜(ぬ)け (atrium)

general

Added 2026.3.22 9:39 · Revised 2026.9.2 13:01

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