Method and apparatus for measuring birefringent particles

Details Method and apparatus for measuring birefringent particles Method and apparatus for measuring birefringent particles

2006-04-18

2006-04-18

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

By polarized light examination

With polariscopes

C356S365000

Reexamination Certificate

active

07030981

ABSTRACT:
A method and apparatus for measuring birefringent particles is provided comprising a source lamp, a grating, a first polarizer having a first transmission axis, a sample cell and a second polarizer having a second polarization axis. The second polarizer has a second polarization axis that is set to be perpendicular to the first polarization axis, and thereby blocks linearly polarized light with the orientation of the beam of light passing through the first polarizer. The beam of light passing through the second polarizer is measured using a detector.

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