Light pollution is indeed an important issue that requires special attention in street lighting design. Let's explore some common light pollution problems and the aspects we need to pay attention to:

• Over-illumination
  Excessive installation of high-power lamps or dense lighting arrangements can lead to unnecessary waste and light pollution. We need to precisely calculate the required illumination based on actual needs to avoid over-illumination.

• Light spill
  If the light from lamps is not well-focused on the target area, it can spill over to surrounding areas. This not only causes light pollution but can also affect the lives of nearby residents. Lighting design should focus on controlling the light distribution, minimizing spill-over as much as possible.

• Blue light hazards
  Some street lamps use high color temperature white light sources, which produce excessive blue light. This blue light not only causes visual discomfort but may also have adverse effects on human health with long-term exposure. Using light sources with appropriate color temperature is crucial.

• Light interference
  Strong street lighting can potentially affect the indoor lighting quality of nearby buildings, even causing glare. Lighting design should fully consider the surrounding environment and reasonably control the brightness and distribution of luminaires.

• Ecological impacts
  Excessive artificial nighttime lighting can interfere with the ecological habits of animals. We should minimize unnecessary nighttime lighting to better protect the local ecological environment.

In summary, in street lighting design, we need to consider factors like energy efficiency, environmental protection, and user-friendliness to truly create a safe and quality nighttime public space. Controlling light pollution should be a key focus in lighting planning.