Compound Optical Film Using Gray Scale Mask Embedded with Microvoids

Table 4

The relationship between the light transmittance at wavelength 365 nm and the contour of the surface of the negative of gray scale.

Gray scale no.	Transmittance at wavelength 365 nm	Height of scale (μm)
1	5.69%	—
2	6.91%	6.22
3	9.28%	13.24
4	10.52%	16.96
5	12.16%	20.1
6	13.83%	27.33
7	14.91%	30.15
8	16.02%	35.46
9	17.56%	39.89