Translation guide
A curtain designed to block all outside light, often used in bedrooms or media rooms. In Japanese, this is typically expressed with specific compound words or descriptive phrases.
A curtain that completely blocks light, usually with a special lining.
Referring to the type of curtain when shopping or specifying features.
Means 'curtains with light-blocking function'. Common in product descriptions.
遮光 is the key term for light-blocking. It can be combined with other words like 遮光シート (light-blocking sheet) or 遮光ブラインド (blackout blinds).
The most common and direct term for a blackout curtain. 遮光 means 'light-blocking'.
I installed blackout curtains in the bedroom.
A descriptive phrase meaning 'curtains that block light'. Less technical than 遮光カーテン.
I'm looking for curtains that block out light.
Literally 'dark curtain', often used for stage or photography backdrops, but can refer to heavy blackout fabric. Less common for home use.
We put up blackout curtains and made the room pitch dark.
These blackout curtains also have an energy-saving effect.
Japan has a rating system for light-blocking; 1級 (first grade) is the highest, blocking 99.99% of light. Useful when shopping.
With grade 1 blackout curtains, the room becomes pitch dark even during the day.