Incoherent holography to obtain depth information by a rotational shearing interferometer

Kaho Watanabe; Takanori Nomura

doi:10.1117/12.2186986

9 September 2015 Incoherent holography to obtain depth information by a rotational shearing interferometer

Kaho Watanabe, Takanori Nomura

Proceedings Volume 9598, Optics and Photonics for Information Processing IX; 95980D (2015) https://doi.org/10.1117/12.2186986
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

The system to record incoherent holograms using a rotational shearing interferometer is proposed. It enables us to record a hologram without coherent illumination such as a laser. The systems can record an incoherent hologram by self-interference. A rotational shearing interferometer to record incoherent cosine hologram is described. Furthermore, a rotational shearing interferometer with lenses to record incoherent hologram is described. It has the advantage of obtaining depth information by the reconstruction owing to lenses for the shear which is parallel to the optical axis. The preliminary experiments were performed. An LED and a liquid crystal display with an LED backlight were used as incoherent objects. The incoherent holograms were recorded. The object images were reconstructed numerically. The experimental results confirm the proposed incoherent holography using a rotational shearing interferometer.

Citation Download Citation

Kaho Watanabe and Takanori Nomura "Incoherent holography to obtain depth information by a rotational shearing interferometer", Proc. SPIE 9598, Optics and Photonics for Information Processing IX, 95980D (9 September 2015); https://doi.org/10.1117/12.2186986

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