According to the shape and installation method of lamps, there are ceiling lamps, chandeliers, floor lamps, table lamps, spotlights, downlights, etc.
Today I will introduce table lamps.
Small lamps placed on desks, dining tables and other countertops for reading and work. The irradiation range is small and concentrated, so it will not affect the light of the whole room. A semi-circular opaque lampshade is commonly used for work desk lamps. The semicircle is used for concentrating light, and the inner wall of the lampshade has a reflective effect, so that the light can be concentrated in the designated area. A rocker-type table lamp is recommended, and the double arm is more convenient to adjust than the single arm. It should be ensured that the inner wall of the lampshade and the light source cannot be seen when the person’s line of sight is at a normal sitting position. Considering the requirements of “eye protection”, the color temperature of the light should be lower than 5000K. If it is higher than this index, the “blue light hazard” will be serious; the color rendering index should be higher than 90, and if it is lower than this index, it is easy to cause visual fatigue. “Blue light hazard” refers to the blue light contained in the light spectrum that can damage the retina. However, all light (including sunlight) contains blue light in the spectrum. If blue light is completely removed, the color rendering index of light will be greatly reduced, causing visual fatigue far greater than the harm of blue light.
Post time: Jul-14-2022