Speckless head-up display on two spatial light modulators

Andrzej Siemion; Izabela Ducin; Karol Kakarenko; Michał Makowski; Agnieszka Siemion; Jarosław Suszek; Maciej Sypek; Dariusz Wojnowski; Zbigniew Jaroszewicz; Andrzej Kołodziejczyk

doi:10.1117/12.881764

14 December 2010 Speckless head-up display on two spatial light modulators

Andrzej Siemion, Izabela Ducin, Karol Kakarenko, Michał Makowski, Agnieszka Siemion, Jarosław Suszek, Maciej Sypek, Dariusz Wojnowski, Zbigniew Jaroszewicz, Andrzej Kołodziejczyk

Author Affiliations +

Proceedings Volume 7746, 17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 77461Q (2010) https://doi.org/10.1117/12.881764
Event: 17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2010, Liptovsky Jan, Slovakia

Abstract

There is a continuous demand for the computer generated holograms to give an almost perfect reconstruction with a reasonable cost of manufacturing. One method of improving the image quality is to illuminate a Fourier hologram with a quasi-random, but well known, light field phase distribution. It can be achieved with a lithographically produced phase mask. Up to date, the implementation of the lithographic technique is relatively complex and time and money consuming, which is why we have decided to use two Spatial Light Modulators (SLM). For the correctly adjusted light polarization a SLM acts as a pure phase modulator with 256 adjustable phase levels between 0 and 2π. The two modulators give us an opportunity to use the whole surface of the device and to reduce the size of the experimental system. The optical system with one SLM can also be used but it requires dividing the active surface into halves (one for the Fourier hologram and the second for the quasi-random diffuser), which implies a more complicated optical setup. A larger surface allows to display three Fourier holograms, each for one primary colour: red, green and blue. This allows to reconstruct almost noiseless colourful dynamic images. In this work we present the results of numerical simulations of image reconstructions with the use of two SLM displays.

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Andrzej Siemion, Izabela Ducin, Karol Kakarenko, Michał Makowski, Agnieszka Siemion, Jarosław Suszek, Maciej Sypek, Dariusz Wojnowski, Zbigniew Jaroszewicz, and Andrzej Kołodziejczyk "Speckless head-up display on two spatial light modulators", Proc. SPIE 7746, 17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 77461Q (14 December 2010); https://doi.org/10.1117/12.881764

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KEYWORDS

Spatial light modulators

Diffusers

Holograms

3D image reconstruction

Signal to noise ratio

Optics manufacturing

Heads up displays

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