The proceedings of the Optical convention: held at the Northampton institute, London, E. C., May 30th to June 3rd, 1905. No. I, London, 1905 ...
Pub. for the Executive committee by Messrs. Norgate & Williams, 1905 - Science - 247 pages
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accuracy adjustment angle angular angular aperture aperture apparatus astigmatism axis bands centre chromatic chromatic aberration collimator colours concave concave lens considerable construction convex convex lens crystals curvature definition diagram diameter difficulty diffraction dioptre distance Dr Drysdale edge effect end faces equal equivalent planes extensometer eyepiece field of view flame focal length focal plane focussing Fraunhofer Gauss plane give glass grating half-silvered mirror illumination intensity laboratory lamp lens lenses lines magnification measured method microscope Nicol Nicol prism Northampton Institute object object-glass obliquity observations obtained ophthalmometer optical instruments opticians ordinary ordinary ray paper parallel photographic photographic lens photometer placed plate polarised polishing position possible practical principal planes prism produced reflected refractive index resolving power retina rings Rosenhain screen screw slit source of light spar spectra spectrum spherical aberration standard surface telescope temperature theory tube wave-front wave-length width