Optical membrane formation system and method

Details Optical membrane formation system and method Optical membrane formation system and method

2003-08-01

2008-09-02

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Of light reflection

C356S244000

Reexamination Certificate

active

07420683

ABSTRACT:
A spectroscopy system has at least one light source operable to generate a source beam and a prism having a rear surface. A support block is disposed on the rear surface of the prism. The support block is formed with at least one sample well having a center and defines a substantially vertical rear cell surface having a center. The source beam is aimed at the sample well. A syringe filled with a membrane solution and having a needle with a distal end disposed in front of the sample well. The distal end is aimed at a point above the center of the rear cell surface. The syringe is operable to eject a stead stream of membrane solution from the needle onto the circular rear cell surface thereby forming a membrane defining at least a portion of a layer under test. The membrane has a substantially uniform thickness that covers substantially the entire rear cell surface. The system also includes a detector operable to detect light that is at least one of reflected and scattered by the layer under test.

REFERENCES:
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patent: 6140045 (2000-10-01), Wohlstadter et al.
patent: 6245578 (2001-06-01), Molloy
patent: 6627461 (2003-09-01), Chapman et al.
patent: 6921615 (2005-07-01), Sreenivasan et al.

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