Appeal No. 97-0673
Application 08/143,370
Kamiwano does not disclose or suggest a two dimensional imager
is rejected.
Each of independent claims 2, 3, 11 and 40 requires that
the light illuminating the chamber be from a coherent light
source. Kamiwano does not disclose the use of an extended
light source which is non-coherent. However, we agree that it
would have been obvious to one with ordinary skill in the art
that a coherent light source, as well as an extended light
source, may be used, especially in light of Longobardi which
discloses an optical imaging system for particle measurement
using a coherent light source. The appellants point to
nothing in Kamiwano which would have indicated to one with
ordinary skill in the art that the invention of Kamiwano
requires or would work only if an extended or non-coherent
light source is used.
We agree with the examiner that one with ordinary skill
in the art possesses sufficient basic skills and common sense
to recognize that the light for use in Kamiwano can come from
a variety of sources, including a coherent light source. One
with ordinary skill in the art is presumed to possess a
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