The use of honeycomb louver in LED lighting

The use of honeycomb louver in LED lighting

Summary

The most common use of the hex louver is the reduction of the glare of the light source and luminaire.




Hexcel louvers - also “hex louvers,” named after the hexagon (6 equal sides) shaped cells that make up the louver is a series of blades or slats arranged to regulate air or light going through. Another name for them is “honeycomb louvers” as their shape looks very much like a honeycomb.
The most common use of the hex louver is the reduction of the glare of the light source and luminaire.
The use of a hex louver can generate unwanted hexagonal shadows, particularly when luminaire is directed to close, flat and white surfaces. In these cases, the use of a diffusing lens is recommended.
The images below show a fixture with a hex louver and clear glass (left) and with a solite lens added above the hex louver (right).
Chart showing losses of output and reduced beam angles while using a hex louver.

Chart showing losses of output and reduced beam angles while using a hex louver.