title: Some methods for producing straight achromatic white-light fringes of variable contrast and constant average irradiance.
abstract: Some simple methods are described for producing an extended field of straight sinusoidal white-light fringes, whose contrast can be varied from 0 to 1 with the average power held constant. The contrast is controlled with a single moving element. The chromatic content of the fringes can also be controlled.
authors.affiliation: IBM Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598, USA.
authors.forename: D S
authors.initials: DS
authors.lastname: Goodman