公开(公告)号：WO1993025876A1

公开(公告)日：1993-12-23

申请号：PCT/US1992007945

申请日：1992-09-22

Applicant: D.O.M. ASSOCIATES INT'L

Inventor： D.O.M. ASSOCIATES INT'L ,  FATELEY, William, G. ,  RYS, Andrzej ,  SOBCZYNSKI, Radoslaw

IPC: G01J03/28

CPC classification number: G01J3/10 ,  G01J3/2846 ,  G01J3/453 ,  G01J2003/104

Abstract: A spectrophotometer (10) includes an array of light emitting diodes (12) configured for activation in successive Hadamard encodement patterns, a diffraction grating (14), an optical slit (16), a detector (18) and electronic controls including a computer. In operation, the diffraction grating (14) disperses and collimates radiation from the array (12) and directs selected spectral components through the slit (16) onto the detector (18) whereupon the computer performs a Hadamard analysis on the detector signals.