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Horticutral Lighting
Achieving 0 sky pollution with asymmetric lighting involves minimizing light spillage upwards, thus reducing or eliminating light pollution that affects the night sky. Here are some key principles and technologies involved in achieving this:
1. Design of Lighting Fixtures
Shielded Fixtures:
Fully shielded or cut-off fixtures direct light downwards, preventing it from spilling into the sky. This ensures that light is only directed where it is needed.
Asymmetric Reflectors:
Reflectors inside the fixture can be designed asymmetrically to focus light downward and toward specific areas without casting light upwards.
2. Use of LED Technology
Directional LEDs:
LEDs are inherently directional light sources. When used with proper optics, they can be aimed precisely to avoid emitting light upwards.
Dimming and Control:
LEDs can be dimmed and controlled more effectively than traditional light sources, allowing for precise light levels that reduce excess illumination.
3. Intelligent Lighting Systems
Adaptive Lighting:
Adaptive lighting systems adjust the brightness and direction of light based on the presence of people or vehicles,reducing unnecessary illumination.
Motion Sensors:
Lights equipped with motion sensors turn on only when needed and remain off otherwise, significantly reducing overall light pollution.
4. Proper Installation and Maintenance
Correct Installation:
Ensuring lights are installed at appropriate heights and angles to minimize skyward light leakage is crucial. This includes mounting lights in a way that maximizes their efficiency while preventing upward spills.
Regular Maintenance:
Regularly cleaning and maintaining fixtures to ensure they continue to operate as designed, without damage or misalignment that could lead to unintended light dispersion.
