How To Choose A Table Lamp With Uniform Lighting?

When selecting a table lamp for extended reading, even light distribution is a key factor. Even light reduces eye strain caused by frequent adaptation to changes in brightness, providing a comfortable reading experience.

Option A: A table lamp with light concentrated in the central area and darker edges causes the eyes to constantly switch between the bright central text area and the dim edge area while reading, easily leading to visual fatigue. For example, when reading a wider book, the edges of the pages may be difficult to see clearly due to insufficient light, and prolonged use of such a table lamp for reading can have adverse effects on vision.

Option B: A table lamp with distinct light spots and alternating light and dark areas causes extremely unstable light distribution in the reading area. Under such frequent changes in light intensity, the eyes must constantly adjust pupil size to adapt to the light changes. Prolonged use increases eye strain, leading to visual fatigue and potentially causing vision deterioration, making it unsuitable for extended reading.

Option C: table lamps with professional optical design ensure that light is evenly distributed across the entire reading area. Whether it is the center or edges of a book, text is clearly visible, eliminating the need for frequent adjustments, thereby effectively alleviating visual fatigue and providing a comfortable, stable lighting environment for extended reading. This makes them an ideal choice for prolonged reading.

Option D: table lamps with scattered light but uneven brightness, where some areas are too bright and others too dark, cause the eyes to repeatedly adapt between overly bright and dark areas. This not only affects the reading experience but also harms the eyes. Overly bright areas may cause glare, stimulating the eyes, while overly dark areas make text difficult to read, making prolonged reading unfavorable.