US 7,463,357 B2
Wide dynamic range chemical array reader
John C. Kralik, Devon, Pa. (US); and Tariq N. Faiz, Hockessin, Del. (US)
Assigned to Agilent Technologies, Inc., Santa Clara, Calif. (US)
Filed on Nov. 29, 2005, as Appl. No. 11/290,100.
Prior Publication US 2007/0121110 A1, May 31, 2007
Int. Cl. G01J 3/30 (2006.01)
U.S. Cl. 356—417  [356/318] 35 Claims
OG exemplary drawing
 
1. A system for detecting light of a pre-determined wavelength range emitted from an area on a surface of a chemical array, said system comprising:
a) a beam splitter configured to split said light into a first light beam and a second light beam;
b) a first detector for detecting photons in said first light beam; and
c) a second detector for detecting photons in said second light beam; wherein said first and second detectors are different types of detectors, wherein said first and second detectors are different types of detectors configured to detect light emitted from an area on a surface of a chemical array, wherein said first and second detectors have an overlapping dynamic range.