Wide angle holographic video projection display

M Chlipała, T Kozacki, HJ Yeom… - Optics Letters, 2021 - opg.optica.org
Optics Letters, 2021opg.optica.org
Holographic projection displays provide high diffraction efficiency. However, they have a
limited projection angle. This work proposes a holographic projection display with a wide
angle, which gives an image of size 306mm× 161mm at 700 mm and reduced speckle
noise. The solution uses single Fourier lens imaging with a frequency filter and hologram
generation utilizing complex coding and nonparaxial diffraction. The experiment was
performed with a 4K phase-only spatial light modulator (SLM) to prove the high efficiency of …
Holographic projection displays provide high diffraction efficiency. However, they have a limited projection angle. This work proposes a holographic projection display with a wide angle, which gives an image of size 306mm×161mm at 700 mm and reduced speckle noise. The solution uses single Fourier lens imaging with a frequency filter and hologram generation utilizing complex coding and nonparaxial diffraction. The experiment was performed with a 4K phase-only spatial light modulator (SLM) to prove the high efficiency of the developed numerical tools. Optical reconstruction shows high resolution and high image quality achieved from a single frame. Hence, displaying video at a full frame rate of the SLM is possible.
opg.optica.org
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