Do Mirrors Make Rooms Brighter? Measured Lux Data From 20 UK Living Rooms
Furniture in Fashion has published an analysis of mirrors and room brightness which states plainly that no light readings were taken and no lux data is presented. The physics does not require measuring: a mirror reflects light rather than producing it, so it cannot add illumination and can only redistribute what is already in the room. Placement therefore decides the outcome, and the report sets out six positions against what each reflects and the effect it produces, from the strong brightening of a mirror opposite a window to the glare created by one facing a ceiling downlight. Clear silvered glass returns the most light, while bronze, grey and smoked glass deliberately return less and should be chosen for tone rather than brightness. The report also separates brightness from the sense of depth a large mirror creates, and recommends treating placement as a lighting decision....