Focus Lecture Hall 114: Improper selection of indoor lighting is harmful to health

Fluorescent table lamp placed on the bedside

In home lighting, people always like to put a fluorescent lamp on the bedside table. I don’t know that this kind of lamp looks warm, but it has the disadvantage of flashing screen. After a long time, its distilled gas will make a squeaking sound. . Reading books, playing tablet computers, etc. in such an environment, and performing visual operations can cause harm to the human body. Such as decreased vision, dizziness, insomnia and so on.

Over-renovation

Excessive home decoration also means that the decoration is too luxurious, no matter the complexity of the materials used in the home decoration materials, it gives people a visual pressure, and at the same time, it lacks scientificity in the use of lamps. For example, the light source is too bright, and the spectral distribution is not noticed, so that the indoor environment is bluish or reddish, which is also a light pollution. In this environment, it is easy to cause irritation to the eyes and cause emotional irritability.

The home is a private space, and its function requires that the night lighting should not be as bright and bright as a shopping mall, a specialty store, etc., and the home needs a moderate and moderate illumination. However, there are often people who deliberately pursue bright and brilliant decorative effects. A large number of lamps such as chandeliers, spotlights, downlights, etc. are used. The result is that the light that is too bright causes great stimulation to the eyeball. If the home decoration also uses a large amount of reflective materials, it is strong. Reflected light is more harmful to human health.

Light and dark contrast of the luminaire is too strong

The indoor light should be as soft, uniform, and free of glare and shadows as possible. In order to create special effects in some spaces, some people use indoor lamps with opaque lampshades to make the interior clear and dark. When the person's line of sight turns from the bright area to the dark area, it takes a while for the eyes to see the dark areas. This is often easy to cause visual fatigue.

Indoor brightness is not weak

In the home, the indoor space has different requirements depending on the use of different functions. In ancient times, the principle of "dark room darkness" was put forward, which means that the brightness of the living room, study room, restaurant and other spaces is stronger than that of the bedroom, kitchen, etc., so that the design lighting is more in line with the law of human life. If the light intensity of all the spaces in the room is the same, it will bring inconvenience to the daily life of the occupants.

Professor Randy Nelson of the Ohio State University also found that excessive exposure to light during the night may cause depression.

According to British media reports, people are more likely to develop obesity in brightly lit cities. The reason is that long periods of time under the light in the night will change the metabolic law, and even if the amount of rice does not change, it will increase weight.

Ignore color temperature

Industry analysis of neglected light damage

Since designers and salesmen are not credible, then, should people reduce light pollution? Zhang Jian, a member of the former China Lighting Association's indoor lighting committee who has been studying in the field of lighting for many years, said that since China is still in developing countries, it has just become rich. People generally have a consumption concept of "the more expensive, the better the things", and this concept does not apply to the field of lamps.

Below is the light damage lurking around you.

For laymen, when they choose the lights, they only pay attention to power and shape, but often ignore the most important color temperature and color rendering index of lighting.

The results of the research in the Visual Studies Laboratory show that human vision is most accustomed to daylight, while daylight is composed of red orange, yellow, green, blue, and purple. Good lighting should have these same elements. The color temperature of natural light is 6500K, but the color temperature of light is not enough, and the color spectrum should be comprehensive, so as to ensure that the color rendering is not deviated.

In terms of color rendering index, daylight is 100%, incandescent lamp is 100%, fluorescent lamp can reach 90%-95%, and LED lamp is 70%-80%.

Classic Magic Tricks is collection of large famous magic in the magic world, such as Chinese four rings, Vase and Ball and so on. To some extent, all performance of this part are basal to magicain, it is necessary to you if you want to be a new hand here. The material of the products are environment protection and safety. ASB, sponge, iron and other accessories. All products with high-quality, better service, don't hesitate to contact with us.

Classic Magic Tricks

Chinese Rings, Ring and Chain, Sponge Rabbits, Coin Paddle, Magic Secret Box, Vase and Ball

Zhejiang Kaseng educational toys Co., ltd , http://www.dasengmagic.com