Asahi Optics developed TYPEIII street light lens for 2x2 lens module(50mm) and 2x6 lens module(173mm) which can use for 2 lane,3 lane,4 lane road situation and R1,R3 condition(concrete pavement and asphalt pavement).
The TYPEIII design is optimized for more road condition and installation. The installation:height 4:1
The TYPEIII design have different size option, single lens for 1LED, 2x2 for 4 LEDs,2x6 for 12 LEDs
Following is optical design report
