TY - BOOK AU - French,James Wier TI - Applied optics: the computation of optical systems U1 - 535 PY - 1918///-1919 CY - Bombay PB - Blackie and Sons KW - Geometrical optics KW - Lenses KW - Refraction N1 - Includes index; Library has : vol. 1, 2 ER -