Joke Collection Website - Talk about mood - What light source is good for eye protection desk lamp? Start by choosing the right desk lamp.
What light source is good for eye protection desk lamp? Start by choosing the right desk lamp.
There are many kinds of eye protection table lamps on the market, and some manufacturers have innovatively introduced various light sources to attract consumers' attention. At this time, parents can't help but ask: What kind of light source is good for eye protection desk lamp? The following Tuba rabbit will give parents a detailed introduction to this issue.
What light source is good for eye protection desk lamp?
At present, the light sources of eye protection desk lamps sold in the market are mainly divided into incandescent lamps, energy-saving lamps, fluorescent lamps and LED lamps. In addition, with the development of the times, DC eye protection desk lamps have appeared in the market, but only a few enterprises have applied for invention patents because of the great technical difficulty and high cost.
One of the light sources of eye protection desk lamp: incandescent lamp
Incandescent lamps and halogen lamps, which appeared earlier, are actually a kind of eye protection lamps. Its biggest advantage is that the spectrum is relatively continuous and closest to natural light, so incandescent lamps and halogen lamps can be said to be excellent light sources for human eyes. However, incandescent lamps have a large calorific value, and it is easy for eyes to be dry and brains to swell after long use.
The second light source of eye protection desk lamp: energy-saving lamp
As the name implies, energy-saving lamps save electricity and have a much longer service life than incandescent lamps. However, the biggest disadvantage of energy-saving lamps is that the light source is not stable enough and the color temperature is high, so they are easy to dazzle when used for short-distance lighting.
The third light source of eye protection desk lamp: fluorescent lamp
Many merchants claim that their eye protection desk lamps are tricolor desk lamps in the publicity process, but most of them use phosphor as luminous medium. At the same time, the three colors will be affected by the color of fluorescent powder, and the light efficiency is much worse than that of ordinary monochromatic fluorescent lines, so try not to choose fluorescent lamps when purchasing.
The fourth light source of eye protection desk lamp: led lamp
LED lights, also known as light-emitting diodes, can directly convert electric energy into light. LED lamps are popular because of their small size, long life, low energy consumption and environmental protection. In addition, due to the nature of light-emitting diode, it must be powered by DC to work, which determines its characteristics of no stroboscopic and no radiation, and becomes a real eye protection light source. It is worth reminding that parents must carefully check the certification when choosing LED lights, otherwise it is easy to buy fakes.
How to choose eye protection desk lamp?
1, no flicker:
"No flicker" is the minimum condition of fluorescent eye protection lamp. Fluorescent eye protection lamps sold in the market are generally equipped with a flicker test gyro. When the gyro rotates under illumination, the boundary of the gyro presents a clear and stable pattern.
2, color light:
Please buy a yellow and white desk lamp, not a blue and white desk lamp. Blue and white light is harmful to human eyes, while light yellow and white light is suitable for reading and writing lighting.
3, color rendering:
Color rendering is an important requirement of fluorescent eye protection desk lamp. If the color rendering of light is poor, it is difficult for the illuminated object to restore its original color. The easiest way to check is to check the color rendering of the lamp with the blood red of the palm. Under the light, the blood red of the palm is bright, and if there is no blood color, the color rendering is not good.
4. Power:
Generally speaking, the power of fluorescent lamps is between 9W ~ 9W ~ 18W, which can meet the requirements of desktop reading and writing lighting. When the ambient brightness is low, use 9W fluorescent eye protection lamp. In the case of high ambient brightness, it is enough to use 18W fluorescent eye protection lamp.
5. Color temperature:
As an eye protection desk lamp, the color temperature is between 5000 and 5500 K, which is suitable for the light environment of our eyes. Therefore, this factor should be considered when choosing. Not as recommended by some businesses, the brighter the better!
6. Has the light softened?
Because the LED light source is a point light source like a lamp bead, the LED module light source with a plurality of lamp beads arranged together must be flexible, otherwise the light emitting angles of the lamp beads overlap, which will cause uneven light and seriously interfere with our vision.
7, the position of the drive:
The LED light source must be equipped with a driver. If the driver is broken, the LED bulb will not work. Therefore, a good LED eye protection desk lamp will not design a driver at the lamp head position.
8, light decay:
LED will have the problem of light attenuation. Simply put, the brightness is getting darker and darker, which affects the service life of LED desk lamps. The influencing factor of this phenomenon is temperature. Semiconductors will be accompanied by high temperature when they emit electrons. If the temperature cannot be released in time, it will get darker and darker. Therefore, for this, we only need to know whether the heat dissipation is good or not. At present, the best way is patch module, and aluminum plate is the best solution.
9, the height of the desk lamp:
As an eye protection desk lamp, it should not be too high or too low, and the suitable range is between 35-50cm. The more contacts there are in the desk lamp holder, the more expensive it is to sell, and it is easy to be damaged.
10, security:
As an LED light source, its own characteristics determine that there is no glass device, and it will not produce sharp edges and corners, which will cause harm to the skin, especially to children. If you add decorative links, you will definitely add sharp devices such as wire drawing and screws. The simpler the structure, the better!
1 1, material:
Because of the long service life of LED light source, the material of lamp holder is very important. For example, some are made of metal, not natural color, but processed separately, which will fall off after a long time and affect the appearance. Or it will be corroded after a long time, which will also affect the appearance. Therefore, it is recommended to choose environmentally friendly plastic materials, mainly to maintain color and beauty for a long time!
12, basic surface technology:
Because the light of the desk lamp shines downward, the smooth surface of the base can't be used. Although beautiful, it will form glare due to reflection, which will adversely affect the light environment. Therefore, it is recommended to choose a matte surface.
The latest quotation of eye protection desk lamp:
Good eyesight? LED? Desk lamp? Eye protection study work reading desk lamp Adjustable bedside eye protection desk lamp TG2309-WH Price: 99.00
Guanya LED rechargeable eye protection desk lamp Students learn to touch and dim the bedroom bedside office working children reading lamp? Healthy and green? Price: ¥99.00
Duration (DP)? Led eye protection desk lamp? Studying, working, reading? Touch stepless dimming? Dual-purpose charging and plugging? DP-J02 Beidou price: ¥99.00
Top ten brands of eye protection lamps
The following are the top ten eye protection lamp brands selected by China Youth like eyes Association for your reference:
First, the little guard doesn't have anti-radiation eye protection lights.
Second, Philips eye protection lamp
Third, OSRAM eye protection lamp
Fourth, Panasonic eye protection lamp
Five, opal eye protection lamp
Six, Mingkeda eye protection lamp
Seven, children's eye protection lamp
Eight, Guanya eye protection lamp
Nine, strong light eye protection lamp
Lianchuang eye protection lamp
Matters needing attention in using eye protection desk lamp:
The light direction of desk lamp is very strong, so we should pay attention to the safety of light, such as stroboscopic, brightness, brightness uniformity and so on. Unfortunately, the monitoring results of the General Administration of Quality Supervision, Inspection and Quarantine show that the reality is not optimistic, and the qualified rate of relevant indicators of eye protection lamps is very low, which should be paid attention to.
First of all, the brightness of the irradiation target area should be appropriate. It should be pointed out that different eye conditions (such as general activities, bedside leisure reading, writing reading) have different requirements for light brightness and uniformity, and there are detailed numerical provisions in national standards [3]? . But what about the lamp? The types, powers and shapes of light sources vary widely, so users must adjust the position and irradiation angle of light sources according to the actual situation to make the brightness of light in the target area meet the requirements of national standards. Generally speaking, because the visual brightness of light is subjective and the deviation is large, we should use brightness monitoring tools such as eye protection light measuring pen when dimming. The safety of light is especially important for long-term and short-distance eyes (such as reading/writing).
Second, avoid the glare of the lamp holder and the reflection of the irradiated surface. For ordinary indoor lighting (such as ceiling lights), such problems generally do not occur. But for desk lamps, the glare of the lamp holder and the reflection of the illuminated surface are very common. Dazzling glare and reflection have obvious harm to eyes. Users can avoid the glare of the lamp holder and the reflection of the irradiated surface by adjusting the irradiation position and angle of the lamp holder, which can generally be done by visual inspection.
The above is about what kind of light source is good for eye protection desk lamp, and I hope it will help everyone! Tubatu decoration network, high-quality materials, standardized technology, unified management, and after-care service make you feel at ease.
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