TY - GEN
T1 - Phase-Only Holographic Head Up Display Without Zero-Order Diffraction Light for Automobiles
AU - Isomae, Yoshitomo
AU - Shibata, Yosei
AU - Ishinabe, Takahiro
AU - Fujikake, Hideo
N1 - Funding Information:
This work was supported by JSPS KAKEN under Grant JP17J02046. The authors would like to thank the JVCKENWOOD Corporation for fabrication of the spatial light modulator.
Publisher Copyright:
© 2012 IEEE.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - This paper presents a phase-only holographic head up display (HUD) without zero-order diffraction light for automobiles. The-1 order diffraction light can be suppressed by phase-only holograms, but the zero-order diffraction light is produced by the nonuniform phase distributions in the pixels of spatial light modulators. Zero-order diffraction light degrades the quality of reconstructed images by overlapping with them. Hence, zero-order diffraction light must be eliminated to realize practical phase-only holographic head up displays. To eliminate this light, we developed an optical system using lenses and a spatial filter. The spatial filter is placed at the focal plane of the lens and absorbs only the center of the focal plane (focal point). This method does not reduce the field of view of holographic head up displays because the spatial filter absorbs only the straight component of the object light. We also investigate how to reduce the size of the optical system to make it suitable for use in automobiles.
AB - This paper presents a phase-only holographic head up display (HUD) without zero-order diffraction light for automobiles. The-1 order diffraction light can be suppressed by phase-only holograms, but the zero-order diffraction light is produced by the nonuniform phase distributions in the pixels of spatial light modulators. Zero-order diffraction light degrades the quality of reconstructed images by overlapping with them. Hence, zero-order diffraction light must be eliminated to realize practical phase-only holographic head up displays. To eliminate this light, we developed an optical system using lenses and a spatial filter. The spatial filter is placed at the focal plane of the lens and absorbs only the center of the focal plane (focal point). This method does not reduce the field of view of holographic head up displays because the spatial filter absorbs only the straight component of the object light. We also investigate how to reduce the size of the optical system to make it suitable for use in automobiles.
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U2 - 10.1109/MCE.2019.2923898
DO - 10.1109/MCE.2019.2923898
M3 - Article
AN - SCOPUS:85072070245
SN - 2162-2248
VL - 8
SP - 99
EP - 104
JO - IEEE Consumer Electronics Magazine
JF - IEEE Consumer Electronics Magazine
ER -