title: Holographic lateral shear interferometer.
abstract: A new type of lateral shear holographic interferometer is described. It can be used to test lenses as well as spherical and aspherical surfaces. A null pattern with straight fringes can be obtained for an aspherical surface, provided one has a prototype that can be used for making the hologram.
authors.forename: D
authors.initials: D
authors.lastname: Malacara
authors.forename: S
authors.initials: S
authors.lastname: Mallick