Optical spectrophotometer having a multi-element light source
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United States of America Patent
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Oct 26, 1993
Grant Date -
N/A
app pub date -
Jun 9, 1992
filing date -
Jun 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spectrophotometer includes an array of light emitting diodes configured for activation in successive Hadamard encodement patterns, a diffraction grating, an optical slit, a detector and electronic controls including a computer. In operation, the diffraction grating disperses and collimates radiation from the array and directs selected spectral components through the slit onto the detector whereupon the computer performs a Hadamard analysis on the detector signals.
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