Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone

<div>(a) The side view of the the new counterbeam light before optimization; R1 and R2 are the surface radius of the light. (b) The simulated intensity distribution of the new counterbeam light before optimization.</div>

International Journal of Optics

fig10

Figure 10

Figure 10: Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone 