Appeal No. 2003-0517
Application 08/899,848
answer, the teachings of Cline are significant with respect
to the use of collimated light in Iwai since the resulting
combination yields an improved projection and evaluation
apparatus. It clearly would have been obvious to have combined
Cline with the teachings of Iwai because corresponding teachings
exist in the Abstract of Cline of the use of so-called fringe
patterns (derived in accordance with the paragraph bridging
columns 4 and 5 of Cline with respect to prior art inter-
ferometric and Moire patterns) because the abstract first reveals
that the devices of Cline may be used in testing, in surface
characterization and inspection applications, which teachings are
buttressed at column 1 of Cline and the examiner-noted teachings
at column 3, lines 25-30. The advantages of using the approaches
of Cline are the varying reflected light intensities from these
so-called fringe patterns may be processed to reveal significant
amounts of 2 and 3 dimensional information by the circuitry
associated with Figure 10 in Cline beyond that which is taught in
the single collimated beam approach of Iwai's inspection
apparatus. There are significant teachings as well beginning at
column 6 of Cline relative to edge detection which is the
particular feature discerned according to the teachings of Iwai.
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