Appeal No. 96-1445
Application 08/371,684
The bottom of col. 1 of Hirsch indicates that the prior
art utilized cathode ray tubes as a rotatable image projection
apparatus to a rotating screen. However, the top of col. 2 of
this reference indicates that it was considered to have been
an advantage in Hirsch that a moving film projector would have
generated an entire sectional image at once, thus not
requiring the use of scanning techniques as in the cathode ray
tube approach of the prior art to Hirsch. The advantage was
that whole sectional images of scenes were displayed for an
entire period of the screen movement to add increased detail
and image intensity to the viewer. Color film was also taught
as well. This analysis is basically repeated at col. 6,
beginning at line 22.
Although Hirsch would have indicated to the artisan that
the use of television images, which must inherently be scanned
in a rastor-scan approach, would have been a disadvantage for
such a three dimensional display system, Collender’s approach
allows TV signals to be conveyed in a three dimensional manner
to the viewer. Collender’s approach allows successive whole
frames of television information to be scanned individually
and successively for a viewer to enjoy in a three dimensional
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