Optics: measuring and testing – By dispersed light spectroscopy – With background radiation comparison
Reexamination Certificate
2007-09-04
2007-09-04
Lauchman, Layla G. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With background radiation comparison
C356S306000, C356S319000
Reexamination Certificate
active
10756096
ABSTRACT:
The invention relates to a method and a device for obtaining a low-noise optical signal.According to the method, a luminous beam is injected through two apertures and after detection respectively a basic optical signal (21) and a corrective optical signal (22) are generated. Both optical signals obtained (21, 22) are subtracted, so that a resulting optical signal is generated, forming the low-noise optical signal. The apertures are preferably two slits of a spectroscope, the optical signals being expressible relative to the wavelength.
REFERENCES:
patent: 3102155 (1963-08-01), Vallee
patent: 3729259 (1973-04-01), Cooper et al.
patent: 3820898 (1974-06-01), Olson
patent: 3837744 (1974-09-01), Egan et al.
patent: 4464051 (1984-08-01), Talmadge et al.
patent: 5022755 (1991-06-01), Wells et al.
patent: 5291426 (1994-03-01), Collins et al.
patent: 6643011 (2003-11-01), Kojima
patent: 0344782 (1989-12-01), None
John A. Leys, A method of Background Correction for Direct Reading Optical Emission Spectroscopic Trace Analysis Using Offset Exit Slits, Analytical Chemistry, vol. 41, No. 2, Feb. 1969, pp. 396-398.
FR 0300313 International Search Repot dated Nov. 3, 2003.
S.A. Myers and D.H. TracyImproved Performance Using Internal Standardization in Inductively-Coupled Plasma Emission Spectroscopy Spectrochimica Acta vol. 38B pp. 1227-1253 (1983).
Brown Rudnick Berlack & Israels LLP
Handal Anthony H.
Jobin Yvon S.A.S.
Lauchman Layla G.
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