 | Henry Augustus Rowland - 1902 - 762 páginas
...brought to a focus, but would have been diffused in the direction of the lines. In the same way we can conclude that in flat gratings any departure from...lines must be ruled at distances apart represented by r sin /* in order to bring the light to a focus at the angle // and distance r, c being a constant... | |
 | John William Strutt Baron Rayleigh - 1902 - 628 páginas
...so disposed that the grating shall of itself give well-focused spectra. * " In the same way we may conclude that in flat gratings any departure from...have different foci — a fact sometimes observed " (Rowland, " On Concave Gratings for Optical Purposes," Phil. Mag. September 1883). A similar idea... | |
 | 1910 - 1038 páginas
...4, AOP~w, — (« +o sin 4 sin sin 4o sin '" In the same way we may conclude that in flat gratines any departure from a straight line has the effect...have different foci — a fact sometimes observed " (Rowland, " On Concave Grating* for Optical Purpose*," Phil. Mag.. September 1883). Now as far m*... | |
 | 1910 - 1038 páginas
...former, we have, if OAQ=>, AOP=»«, а sin Ф sin ( sin sin 1 " In the same way we may conclude lhat in flat gratings any departure from a straight line...dust in the slit and the spectrum to have different foe! — a fact sometimes observed " (Rowland, " On Concave Gratings for Optical Purpose«," Pku. Mat-.... | |
 | John William Strutt Baron Rayleigh - 1902 - 666 páginas
...so disposed that the grating shall of itself give well-focused spectra. • " In the same way we may conclude that in flat gratings any departure from a straight line has the effect of causing the dnst in the slit and the spectrum to have different foci — a fact sometimes observed" (Rowland, "On... | |
 | 1910 - 1050 páginas
...PQ/-AQ'. To find the former, we have, if OAQ«=£, AOP««, *" In the same way we may conclude lhat in flat gratings any departure from a straight line...have different foci — a fact sometimes observed " (Rowland, " On Concave Gratingsfor Optical Purpose*/" ri-M. Mag.. September 1884) 248 249 Now as... | |
 | 1883 - 502 páginas
...brought to a focus, but would have been diffused in the direction of the lines. In the same way we can conclude that in flat gratings any departure from...lines must be ruled at distances apart represented by ( cos2/* „ \ 1 -- =-£- x+ &c. ) rsinfi, / in order to bring the light to a focus at the angle ft,... | |
 | 624 páginas
...so disposed that the grating shall of itself give well-focused spectra. • "In the same way we may conclude that in flat gratings any departure from...have different foci — a fact sometimes observed " (Rowland, " On Concave Gratings for Optical Purposes," Phil. Mag. September 1883). A similar idea... | |
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... by Cornu upon gratings purposely constructed with an increasing interval. He has also shown how to rule a plane surface with lines so disposed that the grating shall of itself give well-focused spectra. • "In the same way we may conclude that in... 