We report a method for measuring the effective focal length of a lens without knowing the degree of collimation or the location of the principal planes of the lens.
© 1989 Optical Society of America
Original Manuscript: July 28, 1988
Published: March 15, 1989
Joseph L. Horner, "for the value of integralCollimation invariant technique for measuring the focal length of a lens," Appl. Opt. 28, 1047-1048 (1989)