Wall washing: the wall is lit, making the room feel larger

In a small indoor space, the lighting strategy focuses light on vertical surfaces: a row of wall washers is installed near the ceiling, evenly illuminating the entire farthest wall from top to bottom, making the wall the brightest element in the space. Because people primarily judge space size by the brightness of vertical surfaces, this illuminated wall makes the room visually appear significantly deeper and wider. The floor and furniture maintain a lower brightness, and the ceiling is not particularly bright. The other half of the image contrasts with a traditional approach: all light shines downwards onto the floor, and the walls are dim, making the same room appear noticeably smaller and more cramped. Avoid: depicting both approaches with the same effect, allowing the wall wash light to show fan-shaped bright spots and dark bands, adding a main ceiling light, making the floor brighter than the walls.

Translated from Chinese by AI.

一個小坪數的室內空間,照明策略把光集中在垂直面上:天花靠牆處設一排洗牆燈,把最遠端的整面牆從上到下均勻照亮,牆面成為空間中最亮的元素。因為人判斷空間大小主要靠垂直面的亮度,這面被照亮的牆讓房間在視覺上明顯變深、變寬。地面與家具維持較低的亮度,天花也不特別亮。畫面另一半以傳統做法對照:光全部朝下照地面,牆面偏暗,同樣的房間看起來明顯較小、較侷促。避免:把兩種做法畫成相同效果、讓洗牆光出現扇形的亮斑與暗帶、加裝天花主燈、把地面照得比牆亮。