Filter

Details Filter Filter

2007-08-07

2007-08-07

Nguyen, Tu T. (Department: 2886)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

Reexamination Certificate

active

10148787

ABSTRACT:
A filter for use in a spectrometer to filter transmitted radiation and wherein the filter has a birefringent element responsive to an applied signal, a first polarizer for polarizing the radiation transmitted by a sample, a second polarizer for polarizing the radiation transmitted by the birefringent element, and wherein the birefringent element has a birefringent member having a first birefringence and the birefringent member being responsive to a force applied thereto to generate an additional second birefringence; and the filter having a driver for applying a force to the birefringent member in accordance with the applied signal, and the driver has a piezoelectric member coupled to the birefringent member on one end or at two opposite ends.

REFERENCES:
patent: 4320973 (1982-03-01), Fortunato et al.
patent: 4602342 (1986-07-01), Gottlieb et al.
patent: 4652756 (1987-03-01), Ryan et al.
patent: 4653869 (1987-03-01), Gottlieb et al.
patent: 4663961 (1987-05-01), Nelson et al.
patent: 4732480 (1988-03-01), Fortunato et al.
patent: 5076699 (1991-12-01), Ryan et al.
patent: 5694205 (1997-12-01), Gualtieri et al.
patent: 5696586 (1997-12-01), Ivanov
patent: 0395213 (1990-03-01), None
patent: 0396319 (1990-07-01), None
patent: PCT/GB/04523 (2001-02-01), None
patent: PCT/GB/04523 (2002-03-01), None

Affiliated with

Also associated with

Rating

Filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3898277