The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 13, 2008

Filed:

May. 05, 2006
Applicants:

Paul J. Patt, Blackhawk, CA (US);

German Arciniegas, Oakland, CA (US);

Jeffry Ceremony, Fairfield, CA (US);

Inventors:

Paul J. Patt, Blackhawk, CA (US);

German Arciniegas, Oakland, CA (US);

Jeffry Ceremony, Fairfield, CA (US);

Assignee:

Bio-Rad Laboratories, Inc., Hercules, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/08 (2006.01); G01N 21/64 (2006.01);
U.S. Cl.
CPC ...
Abstract

Nonuniformities in the efficiency of detection of individual fluorescing reaction mixtures in a well plate with a two-dimensional array well array are corrected. The nonuniformities arise both from the stimulation pattern and the detection pattern, and are corrected by adding additional segments to a pair of segmented mirrors. The additional segments are oriented to direct light to the outermost reaches (i.e., the four corners) of the array and thereby produce a stimulation pattern that has a greater intensity in the outermost regions. This compensates for a radial decline in the efficiency of the detector in detecting the emissions from the well plate, the radial decline being an artifact of systems that utilize CCDs or similar components as detectors.


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