T3-2X6 Back Light Control

This lens was developed to achieve a light distribution that minimizes backlighting, similar to the effect of a shield. However, in this instance, the lens alone is employed to control this aspect, thereby maintaining high optical efficiency without the typical efficiency losses associated with the use of a shield  

Features

• Less Backlight, “Sharp cutoff”
• Uniformity
• Optimal Lighting Coverage  
• High Optical Efficiency

Challenges

The main challenge was to minimize the backlight—acting like a shield—by controlling light solely through the lens 

Solution

The solution involved creating a uniform geometry to achieve the desired uniformity. By avoiding abrupt changes in geometry, a consistent flux could be generated and predominantly directed longitudinally along the roadway.

Control of the backlight was achieved by adjusting the LED position—creating a precise interplay between the refractive index, selected high-intensity angles, and zonal flux regions to direct the majority of light forward. Less critical zonal flux was controlled by the internal geometry of the lens, resulting in a sharp cutoff of backlight.  

Software

**Licensed software access was granted for this project by the client. More info.

• Speos
• AGI32