Cove lighting: the ceiling seems to float

Ceiling design for an indoor space, with a groove about fifteen centimeters wide left between the perimeter of the ceiling and the walls. Linear light fixtures are hidden inside the groove, shining upwards. The light first hits the ceiling above, then diffuses back into the entire room, so no direct light source enters the line of sight, and the light is extremely soft, with blurred edges of object shadows. The center of the ceiling appears brighter than the perimeter due to being evenly illuminated, and combined with the shadows formed by the groove, the entire ceiling visually seems to detach from the walls, gently floating above. Individual lamp beads are not visible within the groove; only continuous, uniform illumination. Warm white color temperature, about 3000K. Avoid: allowing the graininess of the lamp beads to show through, making the groove too narrow resulting in bright and dark bands, adding a main ceiling light, making the ceiling darker than the walls.

Translated from Chinese by AI.

一個室內空間的天花設計,周邊與牆面之間留有一道約十五公分寬的凹槽,線性燈具藏在槽內朝上打光。光先打到上方的天花板,再漫射回到整個房間,因此室內沒有任何直接的光源進入視線,光極為柔和,物件的陰影邊緣模糊。天花板的中央因為被均勻照亮而顯得比周邊亮,加上凹槽形成的陰影,整片天花在視覺上像是與牆脫開、輕輕浮在上方。凹槽內看不見一顆一顆的燈珠,只有連續均勻的發光。色溫暖白,約 3000K。避免:讓燈珠的顆粒感透出來、把凹槽做得太窄導致出現亮帶與暗帶、加裝天花主燈、讓天花比牆面暗。