Optical arrangement for quantitative analysis instrument utilizing pulsed radiation emitting diodes
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United States of America Patent
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Apr 5, 1983
Grant Date -
N/A
app pub date -
May 27, 1981
filing date -
May 27, 1981
priority date (Note) -
Expired
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Abstract
An instrument for quantitative analysis using a matrix of radiation emitting diodes has means for assuring that a sample receives substantially uniform radiation from each diode. In the preferred embodiment a lens is used to direct the radiation beams to a focal plane where there is a matte surface diffuser backed with an aperture to provide relatively uniform radiant energy field through the aperture to a sample chamber. With this arrangement the same energy distribution contacts the test samples from each of the radiation sources.
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