title: Observation and theory of some focal properties of crossed cylindrical diffractive optical elements.
abstract: The observation of orthogonally crossed line foci produced by a pair of crossed diffractive cylindrical lenses is reported, and their origin is analyzed.
authors.forename: R W
authors.initials: RW
authors.lastname: Smith
authors.forename: A A
authors.initials: AA
authors.lastname: West