Bedside reading light: One person on, the other undisturbed

A night view of a double bed, with the person on the left sitting up and reading, and the person on the right already lying down asleep. The reading light on the left side of the bed head is an adjustable wall-mounted type, with the lamp head angled downwards and inwards. The beam angle is very narrow, and the light spot falls precisely on the book pages and the pillow on that side, with clear edges. This light has already attenuated at the centerline of the bed, and the pillow on the right side and the sleeping person are completely in darkness, with no light on their face. Both people share the same bed but are in two different light environments, with a clear light-dark boundary falling on the duvet. The rest of the room is completely dark. Avoid: Using a diffuse light fixture that spreads light across the entire bed, adding a main ceiling light, illuminating the right side as well, eliminating the light-dark boundary on the duvet.

Translated from Chinese by AI.

一張雙人床的夜景,左側的人坐著看書,右側的人已經躺下入睡。左側床頭的閱讀燈是可調角度的壁掛式,燈頭朝下並向內收,光束角很窄,光斑精確地落在書頁與該側的枕頭上,邊緣清楚。這道光在床的中線處就已經衰減,右側的枕頭與睡著的人完全在暗處,臉上沒有光。兩人共用同一張床卻處在兩種光環境中,中間有一道明顯的明暗分界落在棉被上。房間其餘部分全暗。避免:使用擴散型的燈具讓光鋪滿整張床、加裝天花主燈、把右側也照亮、消除棉被上的明暗分界。