Appeal No. 2003-0517
Application 08/899,848
limitations of independent claims 1 and 6 on appeal, Iwai alone
does not disclose a device that projects a plurality of lines of
light having different intensities.
Of interest here is Iwai's use of a collimator lens 6
associated with the slit beam emitter 5a in Iwai's Figure 1.
On the other hand, in Cline, the example 2 discussed beginning at
column 10, line 28 with respect to Figures 6 and 7 is significant
because it is indicated that object 92 in Figure 7 is illuminated
by a collimated light source 93. What is significant about Cline
is the initial revelation at column 1 that interferometers are
known in the art to project divided beams of light into two or
more parts and the additional teaching at column 2 that a branch
of interferometry of Moire contouring is known in the art where
an object is illuminated through a Ronchi grating consisting of
alternative opaque and transparent lines of equal width by a
collimated light source to produce an array of shadows on the
object. The discussion noted earlier at column 10 with respect
to Figures 6 and 7 relies upon this earlier teaching.
What is most significant from the noted teachings of example
2 at column 10 of Cline is that a collimated light source may in
fact be processed optically to provide a plurality of projected
lines of light. As noted by the examiner at page 7 of the
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