title: Side band Ronchi test.
abstract: Using holographic techniques a Ronchi ruling with carrier may be generated which has the property of giving highly defined Ronchi fringes, instead of the diffraction-blurred fringes produced in the normal test. This procedure can be generalized to include the case of circular fringes.
authors.forename: D
authors.initials: D
authors.lastname: Malacara
authors.forename: A
authors.initials: A
authors.lastname: Cornejo