The fabrication model of Fresnel diffractive lens with transverse-adding technique

A novel device and corresponding techniques are proposed, which are the transverse element of binary optics and transverse-adding technique. The transverse-adding technique of binary optics can be used to fabricate microelectronic elements and micro-mechanical elements very well. By using this technique, the micro-photoelectric-mechanical systems can be integrated on a single chip. The fabrication model and method of Fresnel diffractive lens with Transverse-adding technique are presented. It is demonstrated that the diffractive efficiency of Fresnel diffractive lens fabricated with this technique can reach 100% by theoretic analysis. In addition, the diffractive efficiency of this kind of Fresnel diffractive lens is independent of technique error. Key words : binary optical; Fresnel diffractive lens; fabricate model. 1. INTRODUCTION Based on optical diffractive theory, the binary optics has developed rapidly in recent years. It has been applied to improving the characteristics of conventional optical components, light-bean rectifying, optical communication, optical information handling and other fields