> For the complete documentation index, see [llms.txt](https://help.verkada.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.verkada.com/verkada-cameras/ja/insutru/camera-deployment/use-external-ir-illuminators-with-verkada-cameras.md).
# Verkadaカメラで外部IRイルミネーターを使用する
Verkadaカメラで低照度撮影機能を拡張する方法を学びます
赤外線（IR）イルミネーターは、赤外線スペクトルの光を発する装置です。IR光の波長は可視光より長いため、人間の目には見えませんが、カメラには見えます。IRイルミネーターはVerkadaカメラに内蔵されており、カメラのモデルに応じて49〜98フィート（15〜30m）の範囲をカバーします。視野内のすべての動きを撮影するために、カメラに追加の光が必要になる場合があります。
IRイルミネーターは特定の波長で出力し、Verkadaカメラは850nm帯で動作する外部IRイルミネーターに対応しています。
以下は、IRイルミネーターがVerkadaカメラの夜間視認性を向上させる例です。利用可能な周囲光の量によっては、より大型のIRイルミネーターを追加するとよい場合があります。
**例：外部IRイルミネーターなし**
**例：外部IRイルミネーターあり**
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