Research Article
Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone
Table 3
Comparison of the lighting performance between the GE17734 sodium tunnel light and the optimized new CBL.
| | Parameter | GE17734 sodium tunnel light | Prototyped sample of the optimized new CBL | CIE standard |
| | Lav(cd/m2) | 139 (pass) | 121 (pass) | >105 | | 0.82 (pass) | 0.88 (pass) | >0.4 | | 0.98 (pass) | 0.98 (pass) | >0.6 | | 1.55 % (pass) | 4.41% (pass) | <15% | | 0.55 (failed) | 1.08 (pass) | >0.6 |
|
|
