Layered imaging stack for minimizing interference fringes in an

Details Layered imaging stack for minimizing interference fringes in an Layered imaging stack for minimizing interference fringes in an

1993-04-01

1994-05-10

Dzierzynski, Paul M.

Radiant energy

Source with recording detector

Including a light beam read-out

250580, G01T 124, G03G 15044

Patent

active

053110331

ABSTRACT:
A layered imaging stack for minimizing interference fringes in an imaging device. A polymer layer has one flat surface and a second opposed surface that has a surface roughness, R.sub.A, within the range of 0.5 .mu.m to 2.5 .mu.m. An adhesive layer provided on the roughened surface of the polymer layer has an index of refraction, n.sub.2, which differs from the refractive index, n.sub.1, of the polymer layer by at least 0.02. The multiplicative product of R.sub.A in .mu.m and the absolute value of n.sub.2 -n.sub.1, .DELTA.n, is within the range of from about 0.01 to 0.05.

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