Device for enabling slow and direct measurement of...

Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation

Reexamination Certificate

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C356S364000

Reexamination Certificate

active

06970241

ABSTRACT:
Disclosed is a device for enabling the slow and direct measurement of fluorescence polarization using a liquid crystal variable retardance modulator. A polarization module comprises in combination a sample holder for holding a sample; an input polarizer located intermediate the sample holder and a light source emitting an excitation light beam, the input polarizer being fixed in position and intersecting the excitation light beam prior to its entry into the sample; a modulator means located intermediate the sample and an output polarizer and intersecting a fluorescence emission beam exiting the sample, the modulator means comprising a liquid crystal retardance modulator operating at an arbitrarily slow speed; and, the output polarizer located intermediate the modulator and a detector, the output polarizer being fixed in position intermediate the modulator and the detector, and intersecting the fluorescence emission beam. A fluorimeter incorporating the polarization module and method for employing same is further disclosed.

REFERENCES:
patent: 4269511 (1981-05-01), Erwin
patent: 4299486 (1981-11-01), Nogami et al.
patent: 4419583 (1983-12-01), Noeller
patent: 4451149 (1984-05-01), Noeller
patent: 4516856 (1985-05-01), Popelka
patent: 4548499 (1985-10-01), Eisert et al.
patent: 4555177 (1985-11-01), Barrett
patent: 4699512 (1987-10-01), Koshi
patent: 4775237 (1988-10-01), Cioppi
patent: 4946279 (1990-08-01), Ohkubo
patent: 5689110 (1997-11-01), Dietz et al.
patent: 5818582 (1998-10-01), Fernandez et al.
patent: 5943129 (1999-08-01), Hoyt et al.
patent: 6070093 (2000-05-01), Oosta et al.
patent: 6071748 (2000-06-01), Modlin et al.
patent: 6273571 (2001-08-01), Sharp et al.
patent: 6455861 (2002-09-01), Hoyt
patent: 6462826 (2002-10-01), Howard et al.
patent: 6466316 (2002-10-01), Modlin et al.
patent: 6483582 (2002-11-01), Modlin et al.
patent: 6567678 (2003-05-01), Oosta et al.
patent: 2002/0070349 (2002-06-01), Hoyt
patent: 2002/0158212 (2002-10-01), French et al.
patent: 2003/0030817 (2003-02-01), Lee et al.
patent: 2003/0062485 (2003-04-01), Fernandez et al.
patent: 2003/0127609 (2003-07-01), El-Hage et al.
patent: 2004/0012783 (2004-01-01), Morokawa et al.
patent: 2004/0130717 (2004-07-01), Drevillon et al.
John E. Wampler and Richard J. Desa, Recording Polarization of Fluorescence Spectrometer—A Unique Application of Piezoelectric Birefringence Modulation, Analytical Chemistry 46: 563-567 Apr. 1974.

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