 | Samuel Pierpont Langley - 1884 - 344 Seiten
...grating, it was WAVE-LENGTHS IN THE INVISIBLE PRISMATIC SPECTRUM. necessary to let the ray fall first on it and then on the prism, thus making the wave-length...observing telescope or any further apparatus, all lying upon the circumference of the circle which contains the slit. The grating which was employed... | |
 | Theophilus Gribi - 1901 - 262 Seiten
...determined, a being the point at which the spring vibrates, mean time. Its length is practically one-half the circumference of a circle whose diameter is equal to the radius of the spring, plus the length of the straight line bc, which is practically equal to the radius of the... | |
 | National Academy of Sciences (U.S.) - 1884 - 322 Seiten
...it became clear that, for this large and concave grating, it was necessary to let the ray fall first on it and then on the prism, thus making the wave-length...surface. The spectra are then formed, without the need of colliinator, observing telescope, or any further apparatus, all lying upon the circumference of the... | |
 | 1884 - 330 Seiten
...it became clear that, for this large and concave grating, it was necessary to let the ray fall first on it and then on the prism, thus making the wave-length...circumference of a circle whose diameter is equal to the radins of curvature of the grating and which touches its surface. The spectra are then formed, without... | |
 | Kenneth W. Busch, Marianna A. Busch - 1991 - 722 Seiten
...focusing element. If the entrance slit, grating, and detector are all located at points tangent to a circle whose diameter is equal to the radius of curvature of the spherical mirror surface, the concave grating will form a I : 1 image of the entrance slit at the detector.... | |
 | Anne Thorne, Ulf Litzén, Sveneric Johansson - 1999 - 452 Seiten
...exist and mirror reflectivities are very low. Rowland showed that if the slit and grating both lie on a circle whose diameter is equal to the radius of curvature of the grating, and if the grating is tangent to this circle, then for small apertures (the equivalent of paraxial rays... | |
 | Max Born, Emil Wolf - 2000 - 996 Seiten
...lines, the slit, the grating and the plane of observation (photographic plate) should be situated on a circle, whose diameter is equal to the radius of curvature of the concave grating. There are several mountings based on this principle. Rowland himself used the arrangement... | |
 | J. Gautheyrou, J.Y. Loyer, M. Pansu - 2001 - 514 Seiten
...Grating Fig. 11.11 Polychromator with Pashen-Runge mounting. are arranged in a circle called the Rowland circle, whose diameter is equal to the radius of curvature of the grating. The grating is fixed and as many slits and detectors are provided as the number of lines to be analysed,... | |
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In the use of this form of grating, the slit is placed in the circumference of a circle whose diameter is equal to the radius of curvature of the grating, and which touches its surface. 