optical black

例句：

1. 1. The room was filled with the intense light of the lamp, making it difficult to discern any details in the optical black.
   房间里充满了灯光的强烈光线，使得在光学黑中难以辨认任何细节。
2. 2. The optical black is a common feature in many types of lenses, allowing them to focus light without scattering it.
   光学黑是许多类型透镜的常见特征，允许它们聚焦光线而不散射它。
3. 3. In some cases, the optical black can be used to reduce glare and improve visibility in low-lightconditions.
   在某些情况下，光学黑可以用于减少眩光和改善低光照条件下的可见性。