one-way mirrors

Surveillance room dividers

One-way mirrors, also called two-way mirrors, are sheets of glass with a reflective coating that allows people on one side to see through while appearing as a mirror from the other side.

The effect depends on lighting: the side with brighter light sees a mirror, while the darker side can see through.

They're commonly used in police interrogation rooms, security observation areas, and psychology research settings.

The suspect didn't realize detectives were watching through the one-way mirror.

Related

privacy · reflection · power imbalance · wall · interrogation rooms · police interrogation · coating · magic tricks · surveillance · transparent · illusions · transmission · security · observation room · privacy concerns · smart glass · ethical dilemmas · detective fiction

Opposites
transparency/visibility

one-way mirrorsclear glass

Transparent silica sheet

open windows · frosted glass · plate glass

reflectivity

one-way mirrorstwo-way mirrors

Partially silvered surveillance panes

surveillance/privacy function

one-way mirrorsface-to-face interaction

Communication with physical presence

Family

mirror, ones, ways, mirrors, mirrored, mirroring, oneness, wayward

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G