title: A holographic projection system with an electrically tuning and continuously adjustable optical zoom.
abstract: A holographic projection system with optical zoom is demonstrated. By using a combination of a LC lens and an encoded Fresnel lens on the LCoS panel, we can control zoom in a holographic projector. The magnification can be electrically adjusted by tuning the focal length of the combination of the two lenses. The zoom ratio of the holographic projection system can reach 3.7:1 with continuous zoom function. The optical zoom function can decrease the complexity of the holographic projection system.
authors.affiliation: Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan.
authors.forename: Hung-Chun
authors.initials: HC
authors.lastname: Lin
authors.forename: Neil
authors.initials: N
authors.lastname: Collings
authors.forename: Ming-Syuan
authors.initials: MS
authors.lastname: Chen
authors.forename: Yi-Hsin
authors.initials: YH
authors.lastname: Lin
mesh_terms: D004566:Electrodes; D004867:Equipment Design; D006696:Holography / Q000295:instrumentation* / Q000379:methods*; D007909:Lenses; D050866:Liquid Crystals; D008962:Models, Theoretical; D012542:Scattering, Radiation