A method of generating an unique light beam, long range nondiffracting beam (LRNB) has been studied. The LRNB propagates over a long range keeping its narrow beam width as if it does not diffract, while general light beams spread by the diffraction effect. The new beam can be generated by a technique of wave front control. We will introduce some results of experiments and theoretical analyses of the LRNB generation using an optical system with a telescope and a laser. © 2004 American Institute of Physics