title: Device for reflective dividing of a laser beam with adjustable distance between the two focus spots.
abstract: For reflective dividing of a laser beam and focusing in two spots with a fixed distance between, a Fresnel biprism is used. When there is a need for a more frequent change of distance between the spots, a new solution is proposed.
authors.forename: I
authors.initials: I
authors.lastname: Belic