Optics: measuring and testing – By dispersed light spectroscopy – With monochromator structure
Patent
1984-12-28
1987-06-16
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With monochromator structure
G01J 318
Patent
active
046732926
ABSTRACT:
The invention relates to a monochromator including a telecentric dispersive lens (TD0) in which the collimated diffracted beam (2) at an angle .beta. with respect to the normal to the telecentric dispersive lens (TD0) is focused at the focus of a telescope (T.sub.2) fitted with a straight slit (S') the optical axis of the telescope (T.sub.2) being merged with the direction of the diffracted beam (2) and the slit (S') being parallel to the direction of the lines of the telecentric dispersive lens (TD0), the collimated incident beam (1), at an angle .alpha. giving the collimated diffracted beam (22) at an angle .beta. after diffraction by the telecentric dispersive lens (TD0).
REFERENCES:
patent: 3628849 (1971-12-01), Flamand et al.
patent: 3930728 (1976-01-01), Pieuchard et al.
patent: 3973850 (1976-08-01), Pouey
patent: 4068954 (1978-01-01), Da Silva
patent: 4087183 (1978-05-01), Passereau
patent: 4191474 (1980-03-01), Passereau
patent: 4455088 (1984-06-01), Koike
Hallgren, Am. Lab., V. 9, N. 11, Nov. 1977, pp. 69-75.
Nuclear Instruments and Methods, vol. 172, 1980, K. Codling-"Recent European Advances in Monochromator Design for use with Synchrotron Radiation Sources", pp. 107-122.
Centre National de la Recherche Scientifique
Evans F. L.
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