Appeal No. 96-1445
Application 08/371,684
filed. It is therefore recognized that such teachings in
Hornbeck provide a two dimensional image. Array Fig. 31 of
this reference shows two rows of pixels, which in itself is a
two dimensional array. Such an array was utilized in the
printing apparatus shown in Figs. 32a and 32b. A larger
planar array is shown in Figs. 42a and 42b.
The obvious substitutability of the spatial light
modulators (SLM) of Hornbeck, as reasoned by the examiner, for
the CCDLDV devices of Collender/Ernstoff is derived by a
careful study of Hornbeck’s teachings. The examiner has made
a general reference to both cols. 1 and 2 of Hornbeck. Col.
1, lines 32 through 34 indicate that such SLMs has found
numerous applications in the art for projection displays.
Certain SLM devices employed various effects such as liquid
crystal as indicated at col. 2, lines 11 through 18. A
combination of a CCD and LC array is noted at the bottom of
col. 2, again which portion was specifically cross referenced
in the statement of the rejection. This is precisely the same
type of device specifically taught as usable in the three
dimensional projection device of Collender. The discussion
beginning at col. 3 indicates that another SLM type of device
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