Today there are many types of table lamps, and the bulbs are divided into: energy-saving lamps, incandescent lamps, and LED bulbs. Control methods are: switch control, touch control, adjustable brightness, and even voice control. But what consumers need is a practical, energy-saving and reliable product. Under the national eleventh five-year plan, the promotion of LED and other energy-saving products has become more popular.
(1) Shading
In the normal sitting position, the human eye looks horizontally, and the inner wall of the lampshade and the light source should not be seen;
(2) Desktop illumination requirements
The work area illuminated by the table lamp should be 250lx-500lx, and the minimum illuminance should be ≥120lx.
(3) Illumination uniformity requirements
It should be ensured that the work area irradiated by the table lamp has relatively uniform illumination, and no particularly bright or dark light spots can be produced. Only by ensuring these three basic optical performance requirements can eye fatigue be reduced and it can be called a desk writing lamp.