Table 8:
The optical measurement of the average luminance and the average uniformity.
No.
The average luminance (cd/m
2
)
The increase/decrease of the average luminance
Uniformity
The increase/decrease of the uniformity
No lens
—
21.3%
—
40-B
4.7%
29.7%
8.4%
20-B
−3.0%
27.8%
6.5%