THE revised edition of Prof. SouthalPs text-book of geometrical optics, in addition to a number of new problems scattered throughout the book, contains an important new chapter at the end of the ...
Yutai's Dispersive Equilateral Prisms, which are fabricated from H-ZF13, F4,H-K9L or infrared material.These prisms create less stray light than diffraction gratings, thereby eliminating the higher ...