Light from deep window reveals doesn't reach far into the room

A beam of light entering from a deep window recess. The wall is sixty centimeters thick, so the window is deeply recessed, and the light is cut into a beam by the slanted sides, quickly dimming two meters in front of the window on the floor; the back of the room remains unclear even during the day. Avoid: making the wall thin and losing the depth of the window, using large windows to make the interior uniformly bright, adding artificial lighting in the deep parts, making the sides of the window recess vertical.

Translated from Chinese by AI.

一道從深窗洞進來的光。牆厚六十公分,窗因此凹進去很深,光被兩側的斜面切成一束,落在窗前兩公尺的地板上就迅速變暗;房間的深處在白天仍然看不清楚。避免:把牆做薄失去窗的深度、使用大面開窗讓室內均勻明亮、在深處補人工照明、讓窗洞的側邊是垂直的。