Interference No. 104,649
Page No. 21
internally reflected light is then reflected through a prism arrangement to optical path leg 116 on
the left side of Figure 4 and the bottom of Figure 2. As shown by Figure 2, the light in optical
path 116 proceeds through lens 130 and is turned 90' by a turning mirror 132 and is split at beam
splitter 134. (Keagy Opposition 4, Paper No. 37, p. 2, 19). The light at beam splitter 134 is split
into two rays, one of which passes through the splitter and one of which is turned 90'. (See ZX
2014, Fig. 2).
F3 7. The light passing through splitter 134 is turned 90' again by scanning mirror 30 and
proceeds through lens 142 to print camera 144. The print camera 144 is a one-dimensional linear
array charge coupled device (CCD) with sensor aligned perpendicular to the direction of the scan
produced by the rotation of scan mirror 30. (ZX 2014, col. 7, lines 46-54).
F3 8. The light that is turned 90' at beam splitter 134 passes through lens 150 and then through
a beam splitter 152, with one of the split rays passing through lenses 160 and 162 to a two
dimensional CCD camera 153. (Keagy Opposition 4, Paper No. 37, p. 2, 111 and ZX 2014, Fig.
2).
G. 3MTm Brightness Enhancement Film (BEF) 11
F39. 3MTm Brightness Enhancement Film (BEF) Il is essentially a film having a smooth
surface opposite a surface having microprisms. According to 3M,-fhe microprism filmjg*,,,
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Last modified: November 3, 2007