Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent
1990-03-30
1992-07-07
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
356307, 356328, G01J 336
Patent
active
051285495
ABSTRACT:
A method of measuring and compensating stray light in absorbance analysis that use a multiple element array detector wherein one or more of the elements of the diode array are utilized to detect stray radiation in the absence of primary radiation including higher order diffracted radiation. In one aspect, the atmosphere is used to filter all primary radiation below a particular wavelength so that one or more array elements corresponding to detection below such wavelength can be dedicated to the detection of only stray radiation. Detection of higher order diffractions can be prevented by dividing the total spectrum into intervals and detecting these intervals in sequence. In another aspect, a diode array is designed to include additional elements along one side of the array outside the exposure of the primary radiation for the sole purpose of detecting stray radiation.
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Beckman Instruments Inc.
Fields Carolyn E.
Harder P. R.
Liu Wen
May William H.
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