The variable phase system described is characterized by a wide separation of the deviated and the undeviated light bundles so that phase-modifying or absorbing elements can readily be inserted. The path separation is accomplished by a partially aluminized plate inserted in a direction normal to the optical axis, thus facilitating the necessary alignment. Geometrical coincidence has been obtained by introducing into one of the pathways a penta-type mirror system.
© 1960 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
J. Opt. Soc. Am. 37(9) 726-730 (1947)
Pramod K. Rastogi and Leopold Pflug
Appl. Opt. 29(29) 4392-4402 (1990)
James R. Benford and Richard L. Seidenberg
J. Opt. Soc. Am. 40(5) 314-316 (1950)