[16p-M_110-1~13] 3.2 Information photonics and image engineering

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[16p-M_110-4] Whitening of Aerial Image Using a Hybrid Polarization Fresnel Lens Integrating Polarization Diffraction and Imaging

〇(M2)Riku Tobita¹, Moritsugu Sakamoto^1,3, Kohei Noda^1,3, Tomoyuki Sasaki^1,3, Nobuhiro Kawatsuki^2,3, Hiroshi Ono^1,3 (1.Nagaoka Univ. of Tech, 2.Univ of Hyogo, 3.CREST,JST)

Keywords:

aerial image,polarization

We proposed an aerial imaging system employing a hybrid polarization Fresnel lens (HPFL) that integrates a polarization diffraction grating with a polarization Fresnel lens, enabling system miniaturization and a theoretically 100% light utilization efficiency. Although operation with white light was previously limited to monochromatic use due to wavelength-dependent color separation and nonuniformity, we attempted system “whitening” by compensating for the wavelength dependence of diffraction angle and diffraction efficiency.