A holographic projection system with an electrically adjustable optical zoom and a fixed location of zeroth-order diffraction

Ming Syuan Chen, Neil Collings, Hung Chun Lin, Yi-Hsin Lin

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

An electrically tunable optical zooming holographic projection system with a fixed location of zeroth-order diffraction is demonstrated. By using two liquid lenses and an encoded Fresnel lens on a liquid crystal on silicon (LCoS) panel, the size of the projected image of the holographic projection system is changeable; meanwhile, the locations of both of the zeroth-order diffraction and the first-order diffraction are unchanged. Therefore, the zeroth-order diffraction can be removed by using a fixed optical high-pass filter. We can use it to realize an image size matching system for green light (532 nm) and red light (632.8 nm) without any positional motion of the optical elements. The optical zoom function enhances the feasibility to realize a high-resolution full-color holographic projection system.

Original languageEnglish
Article number6727423
Pages (from-to)450-455
Number of pages6
JournalIEEE/OSA Journal of Display Technology
Volume10
Issue number6
DOIs
StatePublished - 1 Jan 2014

Keywords

  • Holographic projection
  • liquid lens

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