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Floodlight with small mirror reflector

As mentioned earlier, one of the drawbacks of some standard reflective elements is that sometimes the light source is imaged in front of the reflective element, thus producing annoying streaks. Reflectors composed of small mirrors can overcome this difficulty by making the light source imaged behind the Reflector. Another advantage of this type of Reflector is that the slope and size of each small mirror can be calculated with great accuracy, so the pattern and mold size used in production can also be made accurately. Although the small mirrors can also be manufactured separately and connected together with tabs, it is better to adopt aluminum plate extrusion molding. The products manufactured in this way can prevent the movement between the small mirrors caused by uneven radiant heat from the lamp.

The result of using this structure is that the light intensity above the peak value drops sharply, while the light intensity below the peak value decreases more slowly. This asymmetry is very useful in some occasions, such as stadium lighting that requires uniform illumination over a large area.