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有关专家提醒消费者,不根据房间大小盲目购置大规格彩电,对人的健康不利。专家介绍,目前,国外特别是西方发达国家,家庭装备大规格彩电不足为奇。然而,这一趋势并不完全符合我国国情。我国居民的房间通常较小,直距一般不超过4米,比较适宜的仍是46厘米(18英寸)、51厘米(20英寸)左右的彩电。电视屏幕越小,在同样的距离上晃动感越不明显,越能为眼睛所承受。反之,对人的眼睛刺激越大。在近距离内长时间看超大屏幕的彩电,为看清图像,人的眼睛会不自觉地调整焦距,而长时间的调节,调节肌便会劳累,从
The experts remind consumers not to blindly buy a large size TV according to the size of the room, adverse to human health. Experts, at present, foreign countries, especially the developed western countries, large-size home-based color TV equipment is not surprising. However, this trend is not entirely in keeping with China’s national conditions. The rooms of residents in our country are usually smaller and the straight distance is usually no more than 4 meters. The more appropriate ones are still 46 cm (18 inches) and 51 cm (20 inches) of color TV sets. The smaller the TV screen, the less noticeable the sway at the same distance, the more it can be held by the eyes. On the contrary, the greater the human eye irritation. In the short distance to see a large screen color TV for a long time, to see the image, people’s eyes will unconsciously adjust the focal length, and a long time to regulate the muscles will be tired, from