Interference No. 104,649
Page No. 13
knowing the difference between "refraction" and "reflection" would readily understand that the
use of the "refraction" terminology to describe the reflected rays in Figures 3 and 6 was in error.
Specifically, one skilled in the art would appreciate that rays 31, 33 and 35 in Figure 3 and rays
52' and 53' in Figure 6 are totally internally reflected.
7. Asserted "Prior" Art
A. Chen et al., U.S. Patent No. 5,448,649
F23. Chen '649 is directed to an apparatus for imaging a fingerprint. (ZX 2008, col. 1, lines 8
9). More specifically, Chen states in the "Background of the Invention" that the invention:
[U]tilizes a layer of elastic microprisms as a sensing element for reproduction of a
distortionless ridge valley pattern and convert the pattern data into a digital form
for further storage or analysis.
(ZX 2008, col. 1, lines 10- 13).
F24. Chen Figure 7A is said to represent an embodiment of Chen's invention. Figure 7A of
Chen is reproduced below:
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