Optics: measuring and testing – By dispersed light spectroscopy – With monochromator structure
Patent
1981-12-02
1984-12-25
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With monochromator structure
G01J 318
Patent
active
044900414
ABSTRACT:
A device for applying radiation to an object at adjustable angles of incidence while maintaining the beam impingement point constant. For the deflection of the radiation (4, 11) which is incident from a predetermined direction, a flat deflection mirror (5, 12) is arranged in front of the object (6, 13), the mirror being turnable around an axis (7, 19) which is located outside of its reflective surface. The beam impingement point on the object (6, 13) remains sufficiently constant within a predetermined range of swing of the mirror (5, 12). The device is advantageously employed in monochromators, particularly ultra-high vacuum monochromators. In that case, the object is formed of a dispersion element. For the continuous adjustment of the angle of incidence on the grating, only a single actuating element (20) for turning the mirror (5, 12) is required.
REFERENCES:
patent: Re26053 (1966-07-01), Cary
patent: 2856531 (1958-10-01), Brouwer
patent: 3069966 (1962-12-01), White
Finkelstein, Journal of the Optical Society of America, vol. 41, No. 3, Mar. 1951, pp. 179-182.
Carl-Zeiss-Stiftung, d/b/a Carl Zeiss
Evans F. L.
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