Extremely simplified image projection technique based on optical fibers and a single Spatial Light Modulator is presented. Images are formed by addressing the modulator with especially iterated Fourier holograms, precisely aligned on the projection screen using phase factors of lenses and gratings. Focusing is done electronically with no moving parts. Color operation is done by spatial side-by-side division of the area of the modulator. Experimental results are given, showing good image quality and excellent resistance to obstructions in the light path. Speckles are suppressed by micro-movements of the screen and by time-averaging of a number of holograms into the final image.
©2012 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
Tomoyoshi Shimobaba, Michal Makowski, Takashi Kakue, Minoru Oikawa, Naohisa Okada, Yutaka Endo, Ryuji Hirayama, and Tomoyoshi Ito
Opt. Express 21(21) 25285-25290 (2013)
Opt. Express 21(24) 29205-29216 (2013)
Hung-Chun Lin, Neil Collings, Ming-Syuan Chen, and Yi-Hsin Lin
Opt. Express 20(25) 27222-27229 (2012)