Appeal No. 96-1850
Application No. 08/218,000
Claim 1 is illustrative of the claimed invention, and it
reads as follows:
1. A portable moire interferometer, comprising:
a box having first, second, third, fourth, fifth and
sixth walls, said first and second walls, said third and
fourth walls, and said fifth and sixth walls, respectively,
being substantially parallel to one another;
a reference diffraction grating which is contained within
the interior of said box and substantially rigidly affixed to
said first wall;
at least first, second and third apertures in said second
wall, facing said reference diffraction grating, said third
aperture being positioned between said first and second
apertures;
first means, extending through a hole in a wall of said
box, for guiding a beam of coherent light from the exterior of
said box to the interior of said box;
second means, located within the interior of said box,
for directing said beam of coherent light toward said
reference diffraction grating, to thereby produce at least
first and second diffracted, coherent beams of light; and
third means, also located within the interior of said
box, for directing said first and second diffracted, coherent
beams of light toward, respectively, said first and second
apertures in said second wall, said third means being
adjustable from the exterior of said box so that the
directions of said first and second diffracted, coherent beams
of light may be adjusted from the exterior of said box.
2
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007