Development of a 3D HUD using a tunable bandpass filter for wavelength multiplexing |
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| Authors: | Philippe Coni Jean‐Luc Bardon Aude Gueguen Matthieu Grossetête |
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| Affiliation: | Thales Avionics SAS, Mérignac, France |
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| Abstract: | A 3D stereoscopic head‐up display using a tunable bandpass filter to perform left and right image spectral separation is presented. Using a single filter reduces the size and the cost of the head‐up display optical engine and enables each spectral band to be accurately tuned. Experiments performed on the first prototype demonstrate the ability to continuously tune the bandpass frequency on 30‐nm range while keeping a 20‐nm bandwidth. Such a system avoids the use of a bulky and costly rotating wheel and enables the use of holographic optical elements known to be wavelength selective. |
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| Keywords: | head‐up display augmented reality tunable filter 3D display spectral multiplexing holographic optical elements wavelength selectivity |
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