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椅子椅子的座面以人的小腿为依据,其高度40厘米为宜(成人)。太高会使大腿受压,太低坐骨支点受力集中。桌子当椅子座高为40厘米时,眼睛为距桌面33厘米,桌面最佳高度为70厘米。照明白炽灯的灯泡距桌面高度,60瓦为100厘米,25瓦为50厘米,15瓦为30厘米。目光灯距桌面高度,40瓦为150厘米,30瓦为140厘米,20瓦为110厘米,8瓦为55厘米。床铺以略高于使用者的膝盖为佳,上下床会感到方便。枕头一般来说,应与一侧肩宽相等,其高度以15厘米为佳,儿童可相应低些,老人用枕头不宜过高,高了会出现头部供血不足。
Chair chair seat to the person’s calf, based on its height 40 cm (adult). Too high will make the thigh compression, too low ischium fulcrum force concentration. Table When the chair is 40 cm high, the eyes are 33 cm from the table top, and the optimum height of the tabletop is 70 cm. The incandescent light bulbs are 100 cm from the desktop, 50 cm from 25 watts and 30 cm from 15 watts. The height of the headlight from the desk is 150 cm for 40 watts, 140 cm for 30 watts, 110 cm for 20 watts and 55 cm for 8 watts. The bed is slightly better than the user’s knee, bed and bed will feel convenient. Pillows in general, should be equal to one side of the shoulder, the height of 15 cm is better, children may be lower, the elderly should not be too high with the pillow, high head will appear insufficient blood supply.